WO2022104752A1 - 发光基板及显示装置 - Google Patents
发光基板及显示装置 Download PDFInfo
- Publication number
- WO2022104752A1 WO2022104752A1 PCT/CN2020/130660 CN2020130660W WO2022104752A1 WO 2022104752 A1 WO2022104752 A1 WO 2022104752A1 CN 2020130660 W CN2020130660 W CN 2020130660W WO 2022104752 A1 WO2022104752 A1 WO 2022104752A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light
- emitting
- signal
- emitting unit
- driving
- Prior art date
Links
- 239000000758 substrate Substances 0.000 title claims abstract description 140
- 230000008878 coupling Effects 0.000 claims description 6
- 238000010168 coupling process Methods 0.000 claims description 6
- 238000005859 coupling reaction Methods 0.000 claims description 6
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 description 23
- 238000004891 communication Methods 0.000 description 19
- 238000010586 diagram Methods 0.000 description 15
- 238000012545 processing Methods 0.000 description 14
- 230000000149 penetrating effect Effects 0.000 description 13
- 230000008569 process Effects 0.000 description 13
- 238000013461 design Methods 0.000 description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000000059 patterning Methods 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 238000003079 width control Methods 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 230000003064 anti-oxidating effect Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
- H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
Definitions
- the present invention relates to the technical field of light-emitting, and in particular, to a light-emitting substrate and a display device.
- each of the light-emitting units includes a driving circuit and a light-emitting group coupled to the driving circuit, and the light-emitting group includes a plurality of light-emitting elements;
- a first signal trace located on the base substrate and extending along a first direction
- the driving circuits in at least two different light-emitting units along the first direction are coupled to each other, and the driving circuits include a first input terminal, and the first signal wiring is coupled to the at least two The first input end of one of the connected drive circuits is coupled.
- the driving circuits in the at least two different light emitting units are coupled through at least one first connection line.
- the drive circuit further includes an output
- the output end of the drive circuit coupled to the first signal trace is connected to the first input end of one drive circuit of the other drive circuits through the first connection line coupling.
- the plurality of light-emitting units are arranged in N rows and M columns and are divided into multiple groups, each group of light-emitting units includes N*Y light-emitting units in N rows and Y columns, one of the first signal traces and one corresponding to the light-emitting unit group;
- the N*Y light-emitting units are sequentially numbered according to the row and column distribution positions, and the first input end of the driving circuit of the light-emitting unit numbered 1 corresponds to the first signal wiring of the group of light-emitting units Electrical connection, the output end of the driving circuit of the light-emitting unit numbered P is electrically connected with the first input end of the driving circuit of the light-emitting unit numbered P+1 through the first connection line;
- N is an integer greater than 0
- M is an integer greater than 0
- Y is an integer
- 0 ⁇ P ⁇ N*Y and P is an integer.
- the light-emitting unit numbered 1 is adjacent to the light-emitting unit numbered N*Y in the second direction, and the output of the driving circuit of the light-emitting unit numbered N*Y/2
- the terminals are arranged adjacent to the driving circuit of the light-emitting unit numbered N*Y/2+1 in the second direction.
- the light-emitting substrate further includes output traces; the output traces extend along the first direction;
- the output end of the driving circuit of the light-emitting unit numbered P+1 is electrically connected to the output wiring.
- At least one of the first connection wire and the output wire is located on a side of the first signal wire away from the base substrate; or,
- At least one of the first connection wire and the output wire is located on the same layer as the first signal wire.
- the driving circuit further includes a second input terminal; the light-emitting substrate further includes a second signal trace;
- the second signal wiring is electrically connected to the second input end of the driving circuit.
- the second signal trace extends along the first direction.
- the second input terminals of all the driving circuits in one light-emitting unit group are electrically connected to the same second signal trace.
- a light emitting cell group includes two columns of light emitting cells
- the first connection line for coupling the driving circuit is arranged around the second signal line.
- the driving circuit further includes a common voltage terminal; the light-emitting group is electrically connected between the driving voltage terminal and the output terminal of the driving circuit;
- the light-emitting substrate further includes: a common voltage signal wiring electrically connected to the common voltage terminal, and a driving signal wiring electrically connected to the driving voltage terminal; wherein the common voltage signal wiring and the driving signal wiring The traces all extend along the first direction.
- one column of light-emitting cells corresponds to one of the common voltage signal traces and one of the driving signal traces.
- the common voltage signal line is located on the driving signal line and the second signal line between.
- a light emitting cell group includes two columns of light emitting cells
- the orthographic projections of the two driving signal wires corresponding to the same light-emitting unit group on the base substrate are axially symmetrical with respect to the orthographic projections of the second signal wires on the base substrate.
- a light emitting cell group includes two columns of light emitting cells
- the orthographic projections of the two common voltage signal traces corresponding to the same light-emitting unit group on the base substrate are axially symmetrical with respect to the orthographic projection of the second signal traces on the base substrate.
- the display device provided by the embodiment of the present disclosure includes the above-mentioned light-emitting substrate.
- FIG. 1 is a schematic diagram of some light-emitting substrates provided in an embodiment of the present disclosure
- FIG. 2 is a schematic diagram of the arrangement of light-emitting units of the light-emitting substrate shown in FIG. 1;
- FIG. 3 is a waveform diagram of a second input signal in a driving circuit provided by an embodiment of the present disclosure
- FIG. 4 is a schematic diagram of a work flow of a driving circuit provided by an embodiment of the present disclosure
- FIG. 5 is a signal timing diagram of a driving circuit provided by an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of a numbering manner of light-emitting units of a light-emitting substrate according to an embodiment of the present disclosure
- FIG. 7 is a schematic diagram of a layout structure of a light-emitting substrate according to an embodiment of the present disclosure.
- FIG. 8a is a schematic partial cross-sectional structural diagram of a light-emitting substrate provided by an embodiment of the present disclosure
- FIG. 8b is another partial cross-sectional structural schematic diagram of the light-emitting substrate provided by the embodiment of the present disclosure.
- FIG. 9 is a schematic diagram of some simplified structures of the light-emitting substrate provided by the embodiments of the present disclosure.
- FIG. 10 is another simplified schematic structural diagram of the light-emitting substrate provided by the embodiments of the present disclosure.
- FIG. 11 is a schematic structural diagram of a display device provided by an embodiment of the present disclosure.
- Mini Light Emitting Diode or Micro Light Emitting Diode (Micro-LED) is small in size and high in brightness, and can be widely used in display devices or their backlight modules. Make fine adjustments to display High-Dynamic Range (HDR) images.
- a typical size (eg length) of a Micro-LED is less than 100 microns, eg, 10 to 80 microns; a typical size (eg, length) of a Mini-LED is 80 to 350 microns, eg, 80 to 120 microns.
- the light-emitting diode is a current-driven element, the signal line needs to transmit the current signal from the driving chip to the light-emitting diode. If each light-emitting diode in the backlight module is independently controlled, multiple signal lines are required to connect with the corresponding light-emitting diodes to provide signals, and due to the limitation of wiring space, signal interference may occur between the signal lines.
- At least one embodiment of the present disclosure provides a light-emitting substrate and a display device.
- the light-emitting substrate can realize sub-regional independent control of light-emitting brightness, has low power consumption, high integration, and simple control method, and can cooperate with passive display devices such as liquid crystal panels to achieve high-contrast display.
- the light-emitting substrate can reduce signal interference and improve display effect.
- At least one embodiment of the present disclosure provides a light-emitting substrate, the light-emitting substrate includes a base substrate 01 , and the base substrate 01 includes a plurality of light-emitting units 100 arranged in an array.
- Each light-emitting unit 100 may include a driving circuit 110 and a light-emitting group coupled to the driving circuit 110 , and the light-emitting group includes a plurality of light-emitting elements 120 .
- the driving circuit 110 may include a first input terminal Di, a second input terminal Pwr and an output terminal OT, a plurality of light emitting elements 120 are serially connected in series and connected between the driving voltage terminal Vled and the output terminal OT.
- the light-emitting substrate 10 includes a base substrate 01 and a plurality of light-emitting units 100 arranged in an array on the base substrate 01 .
- the plurality of light-emitting units 100 are arranged in N rows and M columns, where N is an integer greater than 0, and M is an integer greater than 0.
- the number of the light-emitting units 100 may be determined according to actual requirements, for example, according to the size of the light-emitting substrate 10 and the required brightness.
- FIG. 1 only shows the light-emitting units 100 in 4 rows and 4 columns, it should be understood that the The number of units 100 is not limited to this.
- each column of light-emitting units 100 is arranged along the first direction F1, and each row of the light-emitting units 100 is arranged along the second direction F2.
- the light-emitting substrate is rectangular, wherein the first direction F1 is a direction parallel to the long side of the light-emitting substrate 10, and the second direction F2 is a direction parallel to the short side of the light-emitting substrate 10; of course, the first direction F1 can also be The direction parallel to the short side of the light emitting substrate 10 and the second direction F2 may be a direction parallel to the long side of the light emitting substrate 10 .
- first direction F1 and the second direction F2 may be any direction, as long as the first direction F1 and the second direction F2 intersect.
- the plurality of light emitting units 100 are not limited to be arranged in a straight line, and may also be arranged in a folded line, in a ring, or in any manner, which may be determined according to actual requirements, which are not limited by the embodiments of the present disclosure.
- the material of the base substrate 01 may be selected from plastic, polyimide, silicon, ceramic, glass, quartz, etc., which is not limited in the embodiment of the present disclosure.
- each light-emitting unit 100 may include a driving circuit 110 , a plurality of light-emitting elements 120 and a driving voltage terminal Vled.
- the driving circuit 110 includes a first input terminal Di, a second input terminal Pwr, an output terminal OT and a common voltage terminal GND.
- the light-emitting group is electrically connected between the driving voltage terminal Vled and the output terminal OT of the driving circuit 110 .
- the light-emitting elements 120 in the light-emitting group are connected in series in sequence, and are electrically connected between the driving voltage terminal Vled and the output terminal OT of the driving circuit 110 .
- the light-emitting elements 120 in each light-emitting group may also be connected in parallel to be electrically connected between the driving voltage terminal Vled and the output terminal OT of the driving circuit 110 .
- the light-emitting elements 120 in each light-emitting group can also be electrically connected between the driving voltage terminal Vled and the output terminal OT of the driving circuit 110 by connecting some of the light-emitting elements 120 in parallel and then in series.
- the design can be determined according to actual requirements, which is not limited here.
- the driving circuit 110 may be configured to pass the output terminal OT within a first period of time according to the first input signal received by the first input terminal Di and the second input signal received by the second input terminal Pwr
- the relay signal is output, and the driving signal is provided to the plurality of light-emitting elements 120 connected in series through the output terminal OT in the second period.
- the first input terminal Di receives a first input signal, such as an address signal, for gating the driving circuit 110 of the corresponding address.
- addresses of different driving circuits 110 may be the same or different.
- the first input signal may be an 8-bit address signal, and the address to be transmitted may be obtained by parsing the address signal.
- the second input terminal Pwr receives a second input signal
- the second input signal is, for example, a power line carrier communication signal.
- the second input signal not only provides power for the driving circuit 110, but also transmits communication data to the driving circuit 110, and the communication data can be used to control the lighting duration of the corresponding lighting unit 100, thereby controlling its visual lighting brightness.
- the output terminal OT can output different signals in different time periods, for example, output the relay signal and the driving signal respectively.
- the relay signal is an address signal provided to other driving circuits 110 , that is, the first input terminal Di of the other driving circuits 110 receives the relay signal as the first input signal, thereby obtaining the address signal.
- the driving signal may be a driving current for driving the light-emitting element 120 to emit light.
- the common voltage terminal GND receives a common voltage signal, such as a ground signal.
- the driving circuit 110 is configured to output the relay signal through the output terminal OT within the first period according to the first input signal received by the first input terminal Di and the second input signal received by the second input terminal Pwr, and to output the relay signal within the second period through the output terminal OT.
- the output terminal OT provides a driving signal to the plurality of light-emitting elements 120 connected in series. Wherein, in the first period of time, the output terminal OT outputs a relay signal, and the relay signal is provided to the other driving circuits 110 so that the other driving circuits 110 can obtain the address signal.
- the output terminal OT outputs a driving signal, and the driving signal is provided to the plurality of light emitting elements 120 connected in series in sequence, so that the light emitting elements 120 emit light during the second period.
- the first time period and the second time period are different time periods, and the first time period may be earlier than the second time period, for example.
- the first time period can be continuously connected with the second time period, and the end time of the first time period is the start time of the second time period;
- the other period can also be used only to separate the first period and the second period, so as to prevent the signals of the output terminal OT from interfering with each other in the first period and the second period.
- the driving signal is a driving current
- the driving current can flow from the output terminal OT to the light-emitting element 120, or flow into the output terminal OT from the light-emitting element 120, and the flow direction of the driving current can be determined according to actual needs.
- the embodiments of this are not limited.
- "the output terminal OT outputs a driving signal” means that the output terminal OT provides a driving signal, and the direction of the driving signal can either flow out from the output terminal OT or flow into the output terminal OT.
- a plurality of light emitting elements 120 are serially connected in series, and are connected in series between the driving voltage terminal Vled and the output terminal OT.
- the light emitting element 120 may be a micro light emitting diode (Micro-LED) or a mini light emitting diode (Mini-LED).
- each light-emitting element 120 includes a positive electrode (+) and a negative electrode (-) (or can also be referred to as an anode and a cathode), and the positive and negative electrodes of the plurality of light-emitting elements 120 are connected in series in sequence, so that the driving voltage terminals Vled and A current flow path is formed between the output terminals OT.
- the driving voltage terminal Vled may provide a driving voltage, for example, a high voltage in a period (second period) that needs to make the light-emitting element 120 emit light, and a low voltage in other periods. Therefore, in the second period, the driving signal (eg, driving current) flows from the driving voltage terminal Vled through the plurality of light emitting elements 120 in sequence, and then flows into the output terminal OT of the driving circuit 110 .
- the plurality of light-emitting elements 120 emit light when the driving current flows.
- the duration of the driving current the light-emitting duration of the light-emitting elements 120 can be controlled, thereby controlling the visual light-emitting brightness.
- one light-emitting unit 100 may include four light-emitting elements 120 , and the four light-emitting elements 120 are arranged in two rows and four columns.
- the light-emitting element 120 electrically connected to the driving voltage terminal Vled is used as the starting point of the series connection of the four light-emitting elements 120
- the light-emitting element 120 electrically connected to the output terminal OT of the driving circuit 110 is used as the starting point of the series connection of the four light-emitting elements 120.
- the end point of the series connection of these four light-emitting elements 120 are connected in series.
- the driving voltage terminal Vled is electrically connected to the positive electrode of the light-emitting element 120
- the output terminal OT of the driving circuit 110 is electrically connected to the negative electrode of the light-emitting element 120 .
- the number of light-emitting elements 120 in each light-emitting unit 100 is not limited, and may be any number such as 5, 6, 7, and 8, but not limited to 4. .
- the plurality of light-emitting elements 120 can be arranged in any manner, for example, arranged in a desired pattern, and is not limited to a matrix arrangement.
- the arrangement position of the driving circuit 110 is not limited, and can be arranged in any gap between the light-emitting elements 120, which can be determined according to actual needs, which is not limited by the embodiments of the present disclosure.
- the light-emitting elements 120 in the same light-emitting unit 100 are sequentially connected to form a polygon.
- the light-emitting unit includes four light-emitting elements 120
- the four light-emitting elements 120 may be sequentially connected to form a quadrilateral.
- Two sides of the quadrilateral may be parallel to the row direction, and the other two sides may be parallel to the column direction.
- two sides of the quadrilateral may also have an included angle with the row direction, and the other two sides may also have an included angle with the column direction.
- the relative positions of the light-emitting elements 120 in each light-emitting unit 100 The relationship is the same, and the arrangement is periodically repeated along the column direction F1. Further, in different groups of light-emitting units, in adjacent light-emitting units 100 in the column direction, the relative positional relationship of the light-emitting elements 120 in each light-emitting unit 100 is also the same.
- the light-emitting elements 120 located at the same position in each light-emitting unit 100 may be arranged along the column direction F1.
- the light emitting elements 120 located at the same position in each light emitting unit 100 may be approximately arranged on the same straight line in the column direction.
- the straight line L1 extends along the column direction, and the light emitting elements 120 through which the straight line L1 passes are the light emitting elements 120 at the same position in the light emitting units 100 arranged in the column direction, that is, in the column direction.
- the light-emitting elements 120 at the same position in the light-emitting units 100 arranged above may be roughly arranged on a straight line L1 along the column direction.
- the straight line L2 extends along the column direction, and the light emitting elements 120 through which the straight line L2 passes are the light emitting elements 120 at other identical positions in the light emitting units 100 arranged in the column direction, that is, other identical positions in the light emitting units 100 arranged in the column direction
- the light emitting elements 120 at the position may be roughly arranged on a straight line L2 along the column direction.
- the light emitting elements 120 located at the same position in each light emitting unit 100 may be approximately arranged on the same straight line along the row direction F2 .
- the straight line L3 extends in the row direction
- the light emitting elements 120 through which the straight line L3 passes are the light emitting elements 120 at the same position in the light emitting cells 100 arranged in the row direction, that is, the same position in the light emitting cells 100 arranged in the column direction
- the light emitting elements 120 located at can be roughly arranged on a straight line L3 along the row direction F2.
- the relative positions of the driving circuits in the light-emitting units may be different.
- the positions of the driving circuits in the light emitting units may be the same.
- the driving circuits in two adjacent columns of light-emitting units in the same light-emitting unit group can be arranged in a staggered manner.
- the light-emitting units in the light-emitting substrate are marked with coordinates according to the arrangement of rows and columns.
- the coordinates marked corresponding to the light-emitting unit in the bth column and the ath row may be (b, a), 1 ⁇ a ⁇ M, and 1 ⁇ b ⁇ N.
- the first light-emitting unit group FGZ-1 for the first light-emitting unit group FGZ-1:
- the driving circuit in the light-emitting unit (1, 1), the driving circuit in the light-emitting unit (1, 2), and the driving circuit in the light-emitting unit (2, 1) are respectively located on the three vertices of the triangle, for example, the first positive On the three vertices of the triangle; the driving circuit in the light-emitting unit (2, 1), the driving circuit in the light-emitting unit (1, 2), and the driving circuit in the light-emitting unit (2, 2) can be located at the three vertices of the triangle, respectively on the three vertices of the second equilateral triangle, for example; the driving circuit in the light-emitting unit (2, 1), the driving circuit in the light-emitting unit (2, 2), and the driving circuit in the light-emitting unit (3, 1) can be are respectively located on the three vertices of the triangle, for example, on the three vertices of the third equilateral triangle; the driving circuit in the light-emitting unit (3, 1), the driving circuit in
- the line connecting the center of the first equilateral triangle and the center of the third equilateral triangle is parallel to the column direction F1; and the line connecting the center of the second equilateral triangle and the center of the fourth equilateral triangle is also parallel to the column direction F1.
- the first light-emitting unit group FGZ-1 and the second light-emitting unit group FGZ-2 are adjacent two groups of light-emitting unit groups.
- the driving circuit in the light-emitting unit (1, 2) belonging to the first light-emitting unit group FGZ-1, and the driving circuit, the light-emitting unit ( The drive circuits in 2, 3) can be respectively located on the three vertices of the triangle, for example, on the three vertices of the fifth regular triangle;
- the drive circuit, the drive circuit in the light-emitting unit (1, 2) belonging to the first light-emitting unit group FGZ-1, and the drive circuit in the light-emitting unit (2, 2) may be respectively located on the three vertices of the triangle, for example, On the three vertices of the sixth equilateral triangle;
- the driving circuits in 3) may be respectively located on the three vertices of the triangle, for example, the three vert
- the line connecting the center of the first equilateral triangle, the center of the fifth equilateral triangle, and the center of the seventh equilateral triangle is parallel to the row direction F2; while the line connecting the center of the second equilateral triangle and the center of the sixth equilateral triangle is parallel to the row direction F2
- the direction F2 is parallel.
- the light-emitting substrate 10 may include a plurality of repeating units with the arrangement of light-emitting elements and driving circuits in a light-emitting unit group as a repeating unit. Units, and adjacent repeating units are arranged at intervals, and are periodically arranged along the row direction. In this way, one light-emitting unit group can be repeatedly arranged as a repeating unit to form the light-emitting substrate 10 .
- the driving circuit 110 may include a demodulation circuit, a physical layer interface circuit, a data processing control circuit, a pulse width modulation circuit, a driving signal generating circuit, a relay signal generating circuit and a power supply circuit.
- the demodulation circuit is electrically connected to the second input terminal Pwr and the physical layer interface circuit, and is configured to demodulate the second input signal to obtain communication data, and transmit the communication data to the physical layer interface circuit.
- the second input signal input by the second input terminal Pwr is a power line carrier communication signal
- the power line carrier communication signal includes information corresponding to the communication data.
- the communication data is data reflecting the lighting duration, and further represents the required lighting brightness.
- SPI Serial Peripheral Interface
- the embodiment of the present disclosure superimposes the communication data on the power signal by using the power line carrier communication (Power Line Carrier Communication, PLC) protocol, thereby effectively reducing the number of signal lines.
- PLC Power Line Carrier Communication
- FIG. 3 illustrates a waveform diagram of the second input signal of the driving circuit 110 .
- the dotted oval box represents an enlarged view of the corresponding waveform.
- the amplitude of its high level fluctuates around the threshold amplitude Vth, for example, at the first amplitude V1 and Change between the second amplitude V2, V2 ⁇ Vth ⁇ V1.
- the communication data can be modulated into the second input signal, so that the second input signal transmits information corresponding to the communication data while transmitting power.
- the demodulation circuit filters out the DC power component of the second input signal, so that the communication data can be obtained.
- the second input signal For a detailed description of the second input signal, reference may be made to a conventional power line carrier communication signal, which will not be described in detail here.
- the detailed description of the demodulation circuit can also refer to the demodulation circuit of a conventional power line carrier communication signal, which will not be described in detail here.
- the physical layer interface circuit is further electrically connected to the data processing control circuit, and is configured to process the communication data to obtain data frames (eg, frame rate data), and transmit the data frames to the data processing control circuit.
- the data frame obtained by the physical layer interface circuit includes information to be transmitted to the driving circuit 110, such as information related to the light-emitting time (for example, the specific duration of the light-emitting time).
- the physical layer interface circuit may be a common port physical layer (Physical, PHY), and the detailed description may refer to the conventional design, which will not be described in detail here.
- the data processing control circuit is also electrically connected with the first input terminal Di, the pulse width modulation circuit and the relay signal generating circuit.
- the data processing control circuit is configured to generate a pulse width control signal based on the data frame and transmit the pulse width control signal to the pulse width modulation circuit, and to generate a relay control signal based on the first input signal and transmit the relay control signal to the Follow-up signal generation circuit.
- the light-emitting duration required by the light-emitting element 120 connected to the driving circuit 110 can be known according to the data frame, so a corresponding pulse width control signal is generated based on the light-emitting duration.
- the relay control signal is a signal generated after the data processing control circuit processes the first input signal.
- the address signal corresponding to the driving circuit 110 can be obtained, and a relay control signal corresponding to the subsequent address can be generated, and the subsequent address corresponds to Other drive circuits 110 .
- the data processing control circuit can be implemented as a single-chip microcomputer, a central processing unit (Central Processing Unit, CPU), a digital signal processor, and the like.
- the pulse width modulation circuit is further electrically connected to the drive signal generation circuit, configured to generate a pulse width modulation signal in response to the pulse width control signal, and to transmit the pulse width modulation signal to the drive signal generation circuit.
- the pulse width modulation signal generated by the pulse width modulation circuit corresponds to the lighting duration required by the light emitting element 120 , for example, the effective pulse width duration is equal to the lighting duration required by the light emitting element 120 .
- the detailed description of the pulse width modulation circuit can refer to the conventional pulse width modulation circuit, which will not be described in detail here.
- the driving signal generating circuit is further electrically connected to the output terminal OT, and is configured to generate the driving signal in response to the pulse width modulation signal, and output the driving signal from the output terminal OT.
- outputting the driving signal from the output terminal OT may mean that the driving signal (eg, driving current) flows from the output terminal OT to the light-emitting element 120, or it may mean that the driving signal (eg, driving current) flows from the light-emitting element 120 to the output terminal OT.
- the current direction is not restricted.
- the driving signal generating circuit may include a current source and a Metal Oxide Semiconductor (MOS) Field Effect Transistor (FET), the Metal-oxide-semiconductor field-effect transistors are called MOS transistors.
- MOS Metal Oxide Semiconductor
- FET Field Effect Transistor
- the control electrode of the MOS tube receives the pulse width modulation signal transmitted by the pulse width modulation circuit, so as to be turned on or off under the control of the pulse width modulation signal.
- the first pole of the MOS tube is connected to the output terminal OT, the second pole of the MOS tube is connected to the first pole of the current source, and the second pole of the current source is connected to the common voltage terminal GND to receive the common voltage.
- the current source may be a constant current source.
- the MOS transistor When the pulse width modulation signal is at an effective level, the MOS transistor is turned on, and the current source provides a driving current through the output terminal OT. When the pulse width modulation signal is at an invalid level, the MOS tube is turned off, and the output terminal OT does not provide a driving current at this time.
- the duration of the effective level of the pulse width modulation signal is equal to the conduction duration of the MOS tube, and the conduction duration of the MOS tube is equal to the duration of the drive current provided by the output terminal OT. In this way, the light-emitting duration of the light-emitting element 120 can be further controlled, thereby controlling the visual light-emitting brightness.
- the driving current flows from the OT terminal into the driving circuit 110, and sequentially flows through the MOS transistor and the current source, and then flows into the ground terminal (eg, the common voltage terminal GND).
- the driving signal generating circuit may also adopt other circuit structure forms, which are not limited in the embodiments of the present disclosure.
- the relay signal generating circuit is further electrically connected to the output terminal OT, and is configured to generate the relay signal based on the relay control signal, and output the relay signal from the output terminal OT.
- the relay control signal corresponds to the subsequent address
- the relay signal generated based on the relay control signal includes the subsequent address
- the subsequent address corresponds to other driving circuits 110.
- the relay signal is output from the output terminal OT, it is provided to the first input terminal Di of the separately provided driver circuit 110, and the relay signal is input to the separately provided driver circuit 110 as the first input signal, so that the separately provided driver circuit 110 is provided with the relay signal.
- the driving circuit 110 obtains the corresponding address signal.
- the relay signal generating circuit may be implemented by a latch, a decoder, an encoder, etc., which is not limited by the embodiments of the present disclosure.
- the driving signal generating circuit and the relaying signal generating circuit are both electrically connected to the output terminal OT, the driving signal generating circuit and the relaying signal generating circuit output the driving signal at different time periods respectively. Signal and relay signal, driving signal and relay signal are transmitted through the output terminal OT in time division, so they will not affect each other.
- the power supply circuit is electrically connected to the demodulation circuit and the data processing control circuit, respectively, and is configured to receive power and supply power to the data processing control circuit.
- the second input signal is a power line carrier communication signal.
- the DC power component ie, electric energy
- the power supply circuit may also be electrically connected with other circuits in the driving circuit 110 to provide power.
- the power supply circuit may be implemented by a switch circuit, a voltage conversion circuit, a voltage regulator circuit, etc., which are not limited in the embodiments of the present disclosure.
- the driving circuit 110 may further include more circuits and components, which are not limited to the above-mentioned demodulation circuit, physical layer interface circuit, data processing control circuit, pulse width modulation circuit, and driving signal
- the generation circuit, the relay signal generation circuit, and the power supply circuit may be determined according to the functions to be implemented, which are not limited by the embodiments of the present disclosure.
- FIG. 4 shows a schematic diagram of a work flow of the driving circuit 110
- FIG. 5 shows a signal timing diagram of the driving circuit 110 .
- the driving circuit 110 when the driving circuit 110 is working, it is first powered on (that is, powered on) to complete initialization, and then the address writing operation is performed in the period S1, that is, in the period S1, the first input signal Di_1 passes through the first input signal Di_1.
- An input terminal Di is input to the driving circuit 110 to write an address.
- the first input signal Di_1 is transmitted by a separately provided transmitter.
- the driving configuration is performed, and the relay signal Di_2 is output through the output terminal OT.
- the relay signal Di_2 is input to the first input terminal Di of the separately provided driving circuit 110 as the first input signal.
- the aforementioned first period is period S2.
- the driving voltage terminal Vled is powered on.
- the period S3 is entered after an interval of about 10 microseconds. At this time, the driving voltage provided by the driving voltage terminal Vled becomes a high level.
- the driving circuit 110 is in the normal operation mode, and the output terminal OT provides a driving signal (eg, driving current) according to the required duration, so that the light-emitting element 120 connected to the driving circuit 110 emits light according to the required duration.
- the aforementioned second period is period S4.
- the light-emitting substrate 10 using the driving circuit 110 operates in a local backlight adjustment (Local Dimming) mode, and can achieve a high dynamic range effect.
- the system is turned off, that is, the driving circuit 110 is powered off, and the driving voltage provided by the driving voltage terminal Vled becomes a low level, and the light-emitting element 120 stops emitting light.
- VREG, POR, Vreg_1.8, OSC, and Reset_B are all internal signals of the driving circuit 110, and will not be input or input through the first input terminal Di, the second input terminal Pwr, the output terminal OT and the common voltage terminal GND. output.
- Di_1 is the first input signal received by the driving circuit 110
- Di_2 is the relay signal output by the driving circuit 110 (that is, the first input signal received by the next connected driving circuit 110 )
- Di_n is a plurality of sequentially connected The first input signal received by the nth driving circuit 110 of the driving circuits 110 .
- control circuit 110 may be configured as a chip, the size of the chip (for example, the length) may be several tens of microns, and the chip area is about several hundred square microns or even smaller, similar to the size of the Mini-LED, with
- the miniaturized feature facilitates integration into the light-emitting substrate 10 (eg, is bound and connected on the surface of the light-emitting substrate 10 ), saves the installation space of the printed circuit board, simplifies the structure, and is beneficial to realize light and thin.
- Each control circuit 110 directly drives one light-emitting unit 100, which avoids the problems of complicated operation and easy flickering in the line scan control mode.
- the driving circuit 110 has a small number of ports, a small number of required signals, a simple control method, a simple wiring method, and low cost.
- the light emitting substrate may include a first signal trace 210 located on the base substrate 01 and extending along the first direction F1.
- the driving circuits 110 in at least two different light-emitting units 100 along the first direction F1 are coupled to each other, and the first signal trace 210 is connected to one of the driving circuits 110 of the at least two mutually coupled driving circuits 110 .
- the first input end Di is coupled.
- the driving circuits 110 in at least two different light emitting units 100 adjacent in the column direction can be coupled to each other, so that the driving circuits 110 can be cascaded in the column direction.
- the first input signal can be input to the first input terminal Di of the driving circuit 110 through the first signal wire 210 .
- the cascade connection direction of the first signal trace 210 and the driving circuit 110 can be consistent, thereby reducing the overlapping area of the signals and reducing the signal interference.
- the driving circuits 110 in at least two different light-emitting units 100 are coupled through at least one first connection line 310 .
- the driving circuits 110 in two different light-emitting units 100 may be coupled through a first connection line 310 .
- the output terminal OT of the driving circuit 110 coupled to the first signal trace 210 is connected to The first input terminal Di of one of the other driving circuits 110 is coupled through the first connecting line 310 .
- the plurality of light-emitting units 100 in the light-emitting substrate 10 may be arranged in N rows and M columns and divided into multiple groups, and each group of light-emitting units 100 may include N*Y light-emitting units 100 in N rows and Y columns.
- the signal traces 210 are arranged corresponding to one light-emitting unit group.
- two adjacent columns of light-emitting units 100 may correspond to one first signal trace 210 .
- the first column of light-emitting units 100 and the second column of light-emitting units 100 may form a first light-emitting unit group FGZ-1
- the third column of light-emitting units 100 and the fourth column of light-emitting units 100 may form a second light-emitting unit group FGZ-1.
- Unit group FGZ-2 the first light emitting unit group FGZ- 1 corresponds to one first signal wire 210
- the second light emitting unit group FGZ- 2 corresponds to another first signal wire 210 .
- the number of the first signal traces 210 in the light-emitting substrate 10 can be M/2.
- each group of light-emitting units 100 may include a total of 8 light-emitting units 100 in 4 rows and 2 columns.
- M, N, and Y can be designed and determined according to the requirements of practical applications, which are not limited here.
- N*Y light-emitting units 100 are sequentially numbered according to the row and column distribution positions.
- the first input terminal Di of the driving circuit 110 of the light-emitting unit 100 numbered 1 is electrically connected to the first signal wiring 210 corresponding to the group of light-emitting units 100
- the output terminal OT of the driving circuit 110 of the light-emitting unit 100 numbered P is electrically connected to
- the first input end Di of the driving circuit 110 of the light emitting unit 100 numbered P+1 is electrically connected through the first connecting line 310 .
- 0 ⁇ P ⁇ N*Y and P is an integer.
- the light emitting units 100 arranged in the column direction may be electrically connected in sequence through the first connection lines 310 in a cascaded manner.
- N*Y light-emitting units 100 may be sequentially numbered in an n-shape, each dotted rectangle in FIG. 6 represents one light-emitting unit 100 , and the numbers of each light-emitting unit 100 are marked in each in the rectangle. 1 and FIG. 6 , in the same light-emitting unit group, the light-emitting unit 100 numbered 1 and the light-emitting unit 100 numbered N*Y are arranged adjacent to each other in the second direction F2, and are the distance from each other in the light-emitting unit group.
- the output terminal OT of the driving circuit of the light-emitting unit numbered P and the first input terminal Di of the driving circuit of the light-emitting unit numbered P+1 are edge
- the first direction F1 is electrically connected in sequence.
- the light-emitting unit 100 numbered 1 and the light-emitting unit 100 numbered 8 are arranged adjacent to each other in the second direction F2, and the output terminal OT of the driving circuit 110 of the light-emitting unit 100 numbered 4 is the same as the The driving circuits 110 of the light-emitting unit 100 of 5 are arranged adjacent to each other in the second direction.
- the output terminal OT of the driving circuit of the light-emitting unit 100 numbered 1 is electrically connected to the first input terminal Di of the driving circuit of the light-emitting unit numbered 2.
- the output terminal OT of the driving circuit of the light-emitting unit 100 numbered 2 is electrically connected to the first input terminal Di of the driving circuit of the light-emitting unit numbered 3.
- the output terminal OT of the driving circuit of the light-emitting unit 100 numbered 3 is electrically connected to the first input terminal Di of the driving circuit of the light-emitting unit numbered 4 .
- the output terminal OT of the driving circuit of the light-emitting unit 100 numbered 4 is electrically connected to the first input terminal Di of the driving circuit of the light-emitting unit numbered 5 .
- the output terminal OT of the driving circuit of the light-emitting unit 100 numbered 5 is electrically connected to the first input terminal Di of the driving circuit of the light-emitting unit numbered 6 .
- the output terminal OT of the driving circuit of the light-emitting unit 100 numbered 6 is electrically connected to the first input terminal Di of the driving circuit of the light-emitting unit numbered 7 .
- the output terminal OT of the driving circuit of the light-emitting unit 100 numbered 7 is electrically connected to the first input terminal Di of the driving circuit of the light-emitting unit numbered 8 .
- the light-emitting substrate further includes an output wire 220; the output wire 220 extends along the first direction F1; one light-emitting unit group corresponds to one output wire 220, numbered P+1
- the output terminal OT of the driving circuit 110 of the light emitting unit 100 is electrically connected to the output wiring 220 .
- the driving circuit 110 of the light-emitting unit 100 numbered 1 is electrically connected to the first signal trace 210 corresponding to the first light-emitting unit group FGZ-1, and the output end OT of the driving circuit 110 of the light-emitting unit 100 numbered P+1 is connected to the first light-emitting unit group FGZ-
- the output wiring 220 corresponding to 1 is electrically connected.
- the output terminal OT of the driving circuit 110 of the light-emitting unit 100 numbered P is electrically connected with the first input terminal Di of the driving circuit 110 of the light-emitting unit 100 numbered P+1 through a first connection line 310, that is, the numbering is P+
- the first input terminal Di of the driving circuit 110 of the light-emitting unit 100 of 1 receives the relay signal output by the output terminal OT of the driving circuit 110 of the light-emitting unit 100 numbered P as the first input signal.
- the first input terminal Di of the driving circuit 110 of the light-emitting unit 100 numbered 1 and the second light-emitting unit group The first signal wire 210 corresponding to FGZ-2 is electrically connected, and the output terminal OT of the driving circuit 110 of the light emitting unit 100 numbered P+1 is electrically connected to the output wire 220 corresponding to the second light emitting unit group FGZ-2.
- the output terminal OT of the driving circuit 110 of the light-emitting unit 100 numbered P is electrically connected with the first input terminal Di of the driving circuit 110 of the light-emitting unit 100 numbered P+1 through a first connection line 310, that is, the numbering is P+
- the first input terminal Di of the driving circuit 110 of the light-emitting unit 100 of 1 receives the relay signal output by the output terminal OT of the driving circuit 110 of the light-emitting unit 100 numbered P as the first input signal.
- the light-emitting unit 100 numbered 1 is located in the fourth row, the first Columns, the light-emitting unit 100 numbered 2 is located in the third row and the first column, the light-emitting unit 100 numbered 3 is located in the second row and the first column, the light-emitting unit 100 numbered 4 is located in the first row and the first column, numbered 5
- the light-emitting unit 100 is located in the first row and the second column
- the light-emitting unit 100 numbered 6 is located in the second row and the second column
- the light-emitting unit 100 numbered 7 is located in the third row and the second column
- the light-emitting unit 100 numbered 8 is located in the Fourth row, second column.
- the first input terminal Di of the driving circuit 110 of the light-emitting unit 100 numbered 1 is electrically connected to the first signal wiring 210 corresponding to the first light-emitting unit group FGZ-1.
- the first input terminal Di of the driving circuit 110 of the light emitting unit 100 numbered 2 is electrically connected to the output terminal OT of the driving circuit 110 of the light emitting unit 100 numbered 1 through a first connection line 310 .
- the first input terminal Di of the driving circuit 110 of the light emitting unit 100 numbered 3 is electrically connected with the output terminal OT of the driving circuit 110 of the light emitting unit 100 numbered 2 through a first connection line 310 .
- the first input terminal Di of the driving circuit 110 of the light emitting unit 100 numbered 4 is electrically connected with the output terminal OT of the driving circuit 110 of the light emitting unit 100 numbered 3 through a first connection line 310 .
- the first input terminal Di of the driving circuit 110 of the light emitting unit 100 numbered 5 is electrically connected with the output terminal OT of the driving circuit 110 of the light emitting unit 100 numbered 4 through a first connection line 310 .
- the first input terminal Di of the driving circuit 110 of the light emitting unit 100 numbered 6 is electrically connected with the output terminal OT of the driving circuit 110 of the light emitting unit 100 numbered 5 through a first connection line 310 .
- the first input terminal Di of the driving circuit 110 of the light emitting unit 100 numbered 7 is electrically connected with the output terminal OT of the driving circuit 110 of the light emitting unit 100 numbered 6 through a first connection line 310 .
- the first input terminal Di of the driving circuit 110 of the light emitting unit 100 numbered 8 is electrically connected with the output terminal OT of the driving circuit 110 of the light emitting unit 100 numbered 7 through a first connection line 310 .
- the output terminal OT of the driving circuit 110 of the light-emitting unit 100 numbered 8 is electrically connected to the output wire 220 corresponding to the first light-emitting unit group FGZ-1. The rest are the same, and so on, and will not be repeated here.
- the light-emitting substrate may further include a second signal trace 230 ; wherein the second signal trace 230 is electrically connected to the second input end Pwr of the driving circuit 110 . connect. In this way, the second input signal can be transmitted to the second input terminal Pwr of the driving circuit 110 through the second signal wiring 230 .
- the second signal trace 230 may extend along the first direction F1. In this way, the first signal wiring 210 and the second signal wiring 230 can extend in the same direction, which is convenient for wiring design.
- the number of second signal lines 230 may be multiple.
- the The second input terminals Pwr of all the driving circuits 110 in one light-emitting unit group are electrically connected to the same second signal wire 230 . That is, one light-emitting unit group corresponds to one second signal line 230 .
- the first light-emitting unit group FGZ-1 corresponds to a second signal wire 230
- the second input terminals Pwr of all the driving circuits 110 in the first light-emitting unit group FGZ-1 are electrically connected to the corresponding second signal wire 230. connect.
- the second light-emitting unit group FGZ-2 corresponds to another second signal wire 230, and the second input terminals Pwr of all the driving circuits 110 in the second light-emitting unit group FGZ-2 are electrically connected to their corresponding second signal wires 230. .
- the number of the second signal lines in the light-emitting substrate 10 can be M/2.
- one light-emitting unit group includes two columns of light-emitting units 100 ; and, in the same light-emitting unit group, a first connection for coupling the driving circuit 110
- the line 310 is arranged around the second signal trace 230 . In this way, most of the first connection lines 310 and the second signal traces 230 can extend in the same direction, and the wiring space can be reasonably designed to reduce signal interference.
- the light-emitting substrate may further include: a common voltage signal trace 250 electrically connected to the common voltage terminal GND, and a driving signal electrically connected to the driving voltage terminal Vled Line 240; wherein, the common voltage signal line 250 and the drive signal line 240 both extend along the first direction F1.
- the driving voltage can be transmitted to the driving circuit 110 through the driving signal wire 240
- the common voltage can be transmitted to the driving circuit 110 through the common voltage signal wire 250 .
- the extension directions of the common voltage signal traces 250, the driving signal traces 240, the first signal traces 210, the second signal traces 230 and most of the first connection wires 310 can be consistent, and the wiring space can be reasonably designed. Reduce signal interference.
- one column of light-emitting units 100 corresponds to one common voltage signal line 250 and one driving signal line 240 . That is, the common voltage terminals GND of the driving circuits 110 in a row of light-emitting units 100 are all electrically connected to the same common voltage signal wire 250 , and the driving voltage terminals Vled in a row of light-emitting units 100 are all electrically connected to the same driving signal wire 240 . .
- the common voltage signal line 250 It is located between the driving signal line 240 and the second signal line.
- the width of the common voltage signal trace 250 in the second direction F2 is greater than the width of the driving signal trace 240 in the second direction F2.
- the width of the driving signal line 240 in the second direction F2 is greater than the width of the second signal line in the second direction F2.
- the width of the second signal line in the second direction F2 is greater than the width of the first signal line in the second direction F2.
- the width of the first signal line in the second direction F2 is substantially equal to the width of the first connection trace in the second direction F2.
- one light-emitting unit group may include two columns of light-emitting units 100; ')
- the orthographic projection on the base substrate 01 is symmetrically arranged with respect to the orthographic projection of the second signal trace 230 on the base substrate 01 .
- the orthographic projections of the two driving signal traces (eg, 240 and 240') on the base substrate 01 are symmetrically arranged with respect to the orthographic projection of the second signal traces 230 on the base substrate 01 .
- the orthographic projections of the two driving signal traces (eg, 240 and 240') on the base substrate 01 are axially symmetrical with respect to the orthographic projection of the second signal traces 230 on the base substrate 01 .
- one light-emitting unit group includes two columns of light-emitting units 100; ')
- the orthographic projection on the base substrate 01 is axially symmetrical with respect to the orthographic projection of the second signal trace 230 on the base substrate 01 .
- the orthographic projection of the two common voltage signal traces (eg, 250 and 250') on the base substrate 01 is relative to the orthographic projection of the second signal trace 230 on the base substrate 01. Axisymmetric settings.
- the orthographic projection of the two common voltage signal traces (eg, 250 and 250') on the base substrate 01 is axisymmetric with respect to the orthographic projection of the second signal trace 230 on the base substrate 01 set up. This can facilitate the composition and reduce the difficulty of design.
- the first signal trace 210 , the second signal trace 230 , the common voltage signal trace 250 and the driving signal trace 240 may be located on the same layer.
- the patterns of the first signal traces 210 , the second signal traces 230 , the common voltage signal traces 250 and the driving signal traces 240 can be formed by the same patterning process.
- the patterns of the signal traces 210 , the second signal traces 230 , the common voltage signal traces 250 and the driving signal traces 240 reduce the difficulty of the process.
- the first connection line 310 and the first signal trace 210 may be located on the same layer.
- the same patterning process can be used to form the patterns of the first connection lines 310 and the first signal lines 210 , that is, the patterns of the first connection lines 310 and the first signal lines 210 can be formed at one time through a patterning process after a film forming process, reducing the Process difficulty.
- the output traces 220 and the first signal traces 210 may be located on the same layer. In this way, patterns of the output wirings 220 and the first signal wirings 210 can be formed at one time through a patterning process after one film formation process, thereby reducing the difficulty of the process.
- the material of the layer where the first signal trace is located may be a metal material, for example, any one of copper, molybdenum, titanium, aluminum, and nickel, or an alloy of at least two of them.
- the light-emitting substrate further includes a first insulating layer on the side of the layer where the first signal traces 210 are located away from the base substrate 01 , on the first insulating layer A plurality of second connection wires 320 and a plurality of third connection wires 330 on the side away from the base substrate 01, and a second insulating layer on the side of the second connection wires 320 away from the base substrate 01, and on the second insulating layer
- the driving circuit 110 and the light-emitting element 120 on the side away from the base substrate 01 .
- the first input end Di of one driving circuit 110 corresponds to a second connecting line 320
- the output end OT of one driving circuit 110 corresponds to a third connecting line 330
- the first input end Di of the driving circuit 110 of the light-emitting unit 100 numbered 1 may be electrically connected to the corresponding second connection line 320 through the first input via GKD penetrating the second insulating layer
- the second connection The lines 320 are electrically connected to the corresponding first signal traces 210 through the first via holes GK1 penetrating the first insulating layer.
- the output terminal OT of the driving circuit 110 of the light emitting unit 100 marked as P can be electrically connected to the corresponding third connection line 330 through the output via GKO passing through the second insulating layer, and the third connecting line 330 is passed through the first insulating layer.
- the third via hole GK3 is electrically connected to the corresponding first connection line 310 .
- the first input terminal Di of the driving circuit 110 of the light-emitting unit 100 marked as P+1 can be electrically connected to the corresponding second connection line 320 through the first input via GKD penetrating the second insulating layer.
- the second connection line 320 It is electrically connected to the corresponding first connection line 310 through the fifth via hole GK5 penetrating the first insulating layer.
- the output terminal OT of the driving circuit 110 of the light-emitting unit 100 marked as N*Y can be electrically connected to the corresponding third connection line 330 through the output via GKO passing through the second insulating layer, and the third connection line 330 passes through the first
- the seventh via hole GK7 of the insulating layer is electrically connected to the corresponding output wiring 220 .
- the material of the layer where the second connection line is located may be a metal material, for example, any one of copper, molybdenum, titanium, aluminum, and nickel, or an alloy of at least two of them.
- the light-emitting substrate further includes a plurality of fourth connection lines 340 and a plurality of fifth connection lines 350 which are provided in the same layer as the second connection lines 320 .
- the second input terminal Pwr of one driving circuit 110 corresponds to a fourth connection wire 340
- the common voltage terminal GND of one driving circuit 110 corresponds to a fifth connection wire 350 .
- the second input terminal Pwr of the driving circuit 110 in each light-emitting unit 100 may be electrically connected to the corresponding fourth connection line 340 through the second input via GKP penetrating the second insulating layer, and the fourth connection line 340 may pass through the second input via GKP.
- the ninth via hole of an insulating layer is electrically connected to the corresponding second signal trace 230 .
- the common voltage terminal GND of the driving circuit 110 in each light-emitting unit 100 can be electrically connected to the corresponding fifth connection line 350 through the common voltage via GKG penetrating the second insulating layer, and the fifth connecting line 350 can pass through the first insulating layer.
- the eleventh via hole of the layer is electrically connected to the corresponding common voltage signal trace 250 .
- the light-emitting substrate further includes a plurality of sixth connection lines 360 disposed at the same layer as the second connection lines 320 .
- the driving voltage terminal Vled of one light-emitting unit 100 corresponds to one sixth connection line 360 .
- One end of the sixth connection line 360 in each light-emitting unit 100 is electrically connected to the corresponding driving signal trace 240 through the driving via GKV penetrating the first insulating layer, and the other end of the sixth connection line 360 in each light-emitting unit 100 passes through
- the light-emitting via GKY penetrating the second insulating layer is electrically connected to the positive electrode or the negative electrode of the corresponding light-emitting element 120 .
- the light-emitting substrate may further include a plurality of seventh connection lines 370 provided in the same layer as the second connection lines 320 .
- One light-emitting group corresponds to a plurality of seventh connection lines 370 , and the light elements in the light-emitting group can be connected in series through the seventh connection lines 370 in sequence.
- the seventh connection line 370 is also electrically connected to the positive electrode or the negative electrode of the corresponding light emitting element 120 through the light emitting via hole GKY penetrating the second insulating layer.
- the light-emitting substrate may further include a plurality of first auxiliary lines 510 provided in the same layer as the second connection lines 320 .
- the first auxiliary lines 510 extend along the second direction F2 and are arranged along the first direction F1.
- the orthographic projections of the first auxiliary line 510 on the base substrate 01 are located between the orthographic projections of the light emitting units 100 in two adjacent rows on the base substrate 01 .
- Each of the first auxiliary lines 510 is electrically connected to each of the driving signal traces 240 through first auxiliary vias 511 penetrating the first insulating layer. In this way, a parallel structure can be formed by the first auxiliary line 510 and the driving signal wiring 240, thereby reducing the resistance of the driving signal wiring 240, reducing the influence of voltage drop on light emission, and improving the uniformity of light emission.
- the light-emitting substrate may further include a plurality of second auxiliary lines 520 provided in the same layer as the second connection lines 320 .
- the second auxiliary lines 520 extend along the second direction F2 and are arranged along the first direction F1.
- the orthographic projection of the second auxiliary line 520 on the base substrate 01 is located between the orthographic projections of the light emitting units 100 in two adjacent rows on the base substrate 01 .
- Each of the second auxiliary lines 520 is electrically connected to each of the common voltage signal lines 250 through the second auxiliary via holes 521 penetrating the first insulating layer. In this way, a parallel structure can be formed by the second auxiliary line 520 and the common voltage signal line 250 , which reduces the resistance of the common voltage signal line 250 , reduces the influence of voltage drop on light emission, and improves light emission uniformity.
- the first auxiliary lines 510 and the second auxiliary lines 520 may be alternately arranged along the first direction F1.
- the orthographic projections of the first auxiliary line 510 on the base substrate 01 are located between the orthographic projections of the base substrate 01 of the light-emitting elements in two adjacent rows of light-emitting units 100 .
- the orthographic projection of the second auxiliary line 520 on the base substrate 01 is located between the orthographic projections of the base substrate 01 of the light-emitting elements in the light-emitting units 100 in two adjacent rows.
- the orthographic projection of the first auxiliary line 510 on the base substrate 01 is located between the orthographic projections of the base substrate 01 of the driving circuits in two adjacent rows of light-emitting units 100 .
- the orthographic projection of the second auxiliary line 520 on the base substrate 01 is located between the orthographic projections of the base substrate 01 of the driving circuits in the light-emitting units 100 in two adjacent rows.
- the first connection line 310 may be located on the side of the first signal trace 210 away from the base substrate 01 . In this way, the first connection wires 310 and the first signal wires 210 can be disposed on different layers, thereby reducing signal interference caused by dense wires on the same layer.
- the output traces 220 may be located on the side of the first signal traces 210 away from the base substrate 01 . In this way, the output traces 220 and the first signal traces 210 can be disposed in different layers, thereby reducing signal interference caused by dense traces on the same layer.
- FIG. 7 only illustrates a top view of the light-emitting substrate to which one driving circuit 110 is bound, but no light-emitting element is bound.
- the light-emitting unit with coordinates (1, 1) shows the driving circuit 110 bound and connected to the corresponding pad, and the driving circuit is not shown in other light-emitting units, but only the driving circuit to be connected with the driving circuit is shown. Bonded pads. It can be understood that the pad to be bound with the driving circuit is the area exposed by the plurality of output vias GKO, GKP, GKD and GKG penetrating through the second insulating layer.
- the pad to be bound with the light-emitting element is the area exposed by the plurality of output vias GKY penetrating the second insulating layer.
- the pads for binding the driving circuit and the pads for binding the light-emitting elements need to be exposed at the positions, and in order to ensure good electrical connection and transmission, the pads are usually made of metal.
- Material preparation. In order to improve the problem that the metal material is oxidized, an anti-oxidation layer covering the pad can be provided on the pad.
- the material of the anti-oxidation layer may be, for example, a copper-nickel alloy, or nickel metal, or indium tin oxide, or the like. In this way, by disposing an anti-oxidation layer at least in the pad area, the problem of pad oxidation is improved.
- the light-emitting substrate may further include a bonding area FB; the bonding area FB may include a plurality of signal terminals spaced apart from each other.
- the plurality of signal terminals may include: a plurality of first signal terminals.
- one first signal wire can be electrically connected to at least one first signal terminal.
- one first signal trace 210 may be electrically connected to one first signal terminal 610, or, one first signal trace 210 may be electrically connected to at least two first signal terminals.
- the number of the first signal terminals connected by the first signal wiring can be determined according to the requirements of practical applications, which is not limited here.
- the plurality of signal terminals may include: a plurality of output signal terminals.
- one output wire is electrically connected to at least one output signal terminal.
- one output trace 220 may be electrically connected to one output signal terminal 620, or, one output trace may be electrically connected to at least two output signal terminals.
- the number of output signal terminals connected to the output wiring 220 can be determined by design according to the requirements of practical applications, which is not limited here.
- the plurality of signal terminals may include: a plurality of second signal terminals.
- one second signal wire can be electrically connected to at least one second signal terminal.
- one second signal trace 230 may be electrically connected to one second signal terminal 630, or, one second signal trace 230 may be electrically connected to at least two second signal terminals.
- the number of the second signal terminals connected to the second signal wiring 230 can be determined by design according to the requirements of practical applications, which is not limited herein.
- the plurality of signal terminals may include: a plurality of driving signal terminals and a plurality of common voltage signal terminals.
- one driving signal wiring 240 is electrically connected to at least one driving signal terminal; and one common voltage signal wiring 250 is electrically connected to at least one common voltage signal terminal.
- the two driving signal wirings 240 , the two common voltage signal wirings 250 , the first signal wirings 250 corresponding to one light-emitting unit group may be connected
- the drive signal terminal, the common voltage signal terminal, the first signal terminal, the second signal terminal and the output signal terminal connected to the trace 210 , the second signal trace 230 and the output trace 220 serve as a terminal unit group, that is, a light-emitting unit group Corresponds to a terminal unit group.
- the driving signal terminal, the common voltage signal terminal, the first signal terminal, the second signal terminal, the output signal terminal, the common voltage signal terminal, and the driving signal terminal can be driven according to the corresponding group of light-emitting units.
- the driving signal traces 240 are arranged in sequence along the second direction F2, then the corresponding driving signal terminals, common voltage signal terminals, first signal terminals, second signal terminals, output signal terminals, common voltage terminals of the first light-emitting unit group FGZ-1
- the signal terminals and the drive signal terminals are also arranged in sequence along the second direction F2.
- one light-emitting unit group may correspond to one terminal unit group, and when multiple groups of light-emitting units are repeated and spaced along the second direction, the The corresponding terminal unit groups may be repeated and spaced in the second direction.
- the plurality of signal terminals further include dummy signal terminals; wherein, the first signal terminal and the common voltage signal terminal corresponding to the same light-emitting unit group , a dummy signal terminal is arranged between the first signal terminal and the common voltage signal terminal.
- the orthographic projection of the second signal trace 230 in the first direction F1 overlaps the orthographic projection of the two signal terminals in the first direction F1.
- the two signal terminals are both second signal terminals. That is, as shown in FIG. 1 , FIG. 7 and FIG. 10 , one second signal trace 230 may be electrically connected to two second signal terminals. In this way, the second input signal is input to one second signal wire 230 through the two second signal terminals, so that one second signal wire 230 can provide the second input signal to two adjacent columns of light-emitting units 100 .
- one of the two signal terminals may be the second signal terminal. terminal, and the other signal terminal is a dummy signal terminal.
- the light-emitting substrate may further include a flexible printed circuit board (Flexible Printed Circuit, FPC).
- the flexible printed circuit board may be electrically connected with the above-mentioned first signal terminal, output signal terminal, second signal terminal, driving signal terminal, and common voltage signal terminal through bonding.
- the flexible printed circuit board is also used for binding with other components, such as a lighting control circuit.
- the lighting control circuit can provide a plurality of first input signals and a plurality of second input signals, and these first input signals and second output signals are transmitted to each of the first signal traces 210 and the second signal traces through the flexible printed circuit board
- the line 230 is further transmitted to each group of light-emitting units 100 to control the light-emitting substrate 10 to emit light.
- the lighting control circuit may further provide a driving voltage and a common voltage, and the driving voltage and the common voltage may be transmitted to the driving signal wiring 240 and the common voltage signal wiring 250 through the driving signal terminal and the common voltage signal terminal, respectively.
- a mass transfer method and a process such as reflow soldering can be used to complete the electrical connection between the light-emitting element and the light-emitting substrate.
- a mass transfer method and a process such as reflow soldering can also be used to complete the electrical connection between the driving circuit and the light-emitting substrate.
- At least one embodiment of the present disclosure further provides a display device including a display panel and the light-emitting substrate provided by any embodiment of the present disclosure.
- the display device can realize sub-region independent control of luminous brightness, has low power consumption, high integration, simple control method, and can cooperate with a liquid crystal display device to realize high-contrast display.
- the display device 20 includes a display panel 210 and a light-emitting substrate 220 .
- the light-emitting substrate 220 may be the light-emitting substrate provided in any embodiment of the present disclosure, such as the aforementioned light-emitting substrate 10 .
- the display panel 210 has a display side P1 and a non-display side P2 opposite to the display side P1, and the light emitting substrate 220 is disposed on the non-display side P2 of the display panel 210 as a backlight unit.
- the light emitting substrate 220 may provide backlight to the display panel 210 as a surface light source.
- the display panel 210 may be an LCD panel, an electronic paper display panel, or the like, which is not limited by the embodiments of the present disclosure.
- the display device 20 may be an LCD device, an electronic paper display device, etc., or may also be other devices having a display function, etc., which are not limited in the embodiments of the present disclosure.
- the display device 20 may be any product or component with a display function, such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, an e-book, etc., which is not limited by the embodiments of the present disclosure.
- the light-emitting substrate 10 provided by the embodiment of the present disclosure can be applied to the above-mentioned display device 20 as a backlight unit, and can also be used alone as a substrate with a display function or a light-emitting function, which is not limited by the embodiments of the present disclosure .
- the display device 20 may further include more components and structures, which may be determined according to actual requirements, which are not limited by the embodiments of the present disclosure.
- At least one embodiment of the present disclosure provides a light-emitting substrate and a display device.
- the light-emitting substrate can realize sub-regional independent control of light-emitting brightness, has low power consumption, high integration, simple control method, and can cooperate with liquid crystal display devices to realize high-contrast display.
- the light-emitting substrate can reduce signal interference and improve display effect.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Led Device Packages (AREA)
- Control Of El Displays (AREA)
Abstract
Description
Claims (17)
- 一种发光基板,其中,包括:衬底基板,包括阵列排布的多个发光单元;其中,每个所述发光单元包括驱动电路以及与所述驱动电路耦接的发光组,所述发光组包括多个发光元件;第一信号走线,位于所述衬底基板上且沿第一方向延伸;其中,沿所述第一方向上的至少两个不同发光单元中的驱动电路相互耦接,且所述驱动电路包括第一输入端,所述第一信号走线与所述至少两个相互耦接的驱动电路中的一个驱动电路的第一输入端耦接。
- 如权利要求1所述的发光基板,其中,所述至少两个不同发光单元中的驱动电路通过至少一条第一连接线耦接。
- 如权利要求2所述的发光基板,其中,所述驱动电路还包括输出端;所述相互耦接的至少两个驱动电路中,与所述第一信号走线耦接的驱动电路的输出端,与其他驱动电路中的一个驱动电路的第一输入端通过所述第一连接线耦接。
- 如权利要求3所述的发光基板,其中,所述多个发光单元排列为N行M列且划分为多组,每组发光单元包括N行Y列共N*Y个发光单元,一条所述第一信号走线与一个发光单元组对应;在同一发光单元组中,所述N*Y个发光单元根据行列分布位置依次编号,编号为1的发光单元的驱动电路的第一输入端与该组发光单元对应的所述第一信号走线电连接,编号为P的发光单元的驱动电路的输出端与编号为P+1的发光单元的驱动电路的第一输入端通过所述第一连接线电连接;N为大于0的整数,M为大于0的整数,0<Y≤M且Y为整数,0<P<N*Y且P为整数。
- 如权利要求4所述的发光基板,其中,同一发光单元组中,编号为1的发光单元与编号为N*Y的发光单元在第二方向上相邻设置,编号为N*Y/2 的发光单元的驱动电路的输出端与编号为N*Y/2+1的发光单元的驱动电路在所述第二方向上相邻设置。
- 如权利要求4所述的发光基板,其中,所述发光基板还包括输出走线;所述输出走线沿所述第一方向延伸;所述编号为P+1的发光单元的驱动电路的输出端与所述输出走线电连接。
- 如权利要求6所述的发光基板,其中,所述第一连接线和所述输出走线中的至少一种位于所述第一信号走线背离所述衬底基板一侧;或者,所述第一连接线和所述输出走线中的至少一种与所述第一信号走线位于同一层。
- 如权利要求1-7任一项所述的发光基板,其中,所述驱动电路还包括第二输入端;所述发光基板还包括第二信号走线;所述第二信号走线与所述驱动电路的第二输入端电连接。
- 如权利要求8所述的发光基板,其中,所述第二信号走线沿所述第一方向延伸。
- 如权利要求9所述的发光基板,其中,一个发光单元组中的所有驱动电路的第二输入端均与同一条所述第二信号走线电连接。
- 如权利要求10所述的发光基板,其中,一个发光单元组包括两列发光单元;同一发光单元组中,用于将驱动电路耦接的所述第一连接线围绕所述第二信号走线设置。
- 如权利要求1-11任一项所述的发光基板,其中,所述驱动电路还包括公共电压端;所述发光组电连接于驱动电压端和所述驱动电路的输出端之间;所述发光基板还包括:与所述公共电压端电连接的公共电压信号走线、与所述驱动电压端电连接的驱动信号走线;其中,所述公共电压信号走线和所述驱动信号走线均沿所述第一方向延伸。
- 如权利要求12所述的发光基板,其中,一列发光单元对应一条所述 公共电压信号走线和一条所述驱动信号走线。
- 如权利要求13所述的发光基板,其中,针对一列发光单元对应的所述公共电压信号走线、所述驱动信号走线以及第二信号线,所述公共电压信号走线位于所述驱动信号走线与第二信号线之间。
- 如权利要求14所述的发光基板,其中,一个发光单元组包括两列发光单元;同一发光单元组对应的两条所述驱动信号走线在所述衬底基板的正投影关于第二信号走线在所述衬底基板的正投影呈轴对称设置。
- 如权利要求14所述的发光基板,其中,一个发光单元组包括两列发光单元;同一发光单元组对应的两条所述公共电压信号走线在所述衬底基板的正投影关于第二信号走线在所述衬底基板的正投影呈轴对称设置。
- 一种显示装置,其中,包括如权利要求1-16任一项所述的发光基板。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2020/130660 WO2022104752A1 (zh) | 2020-11-20 | 2020-11-20 | 发光基板及显示装置 |
US18/033,048 US20230387140A1 (en) | 2020-11-20 | 2020-11-20 | Light-emitting substrate and display device |
CN202080002923.4A CN114938677A (zh) | 2020-11-20 | 2020-11-20 | 发光基板及显示装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CN2020/130660 WO2022104752A1 (zh) | 2020-11-20 | 2020-11-20 | 发光基板及显示装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022104752A1 true WO2022104752A1 (zh) | 2022-05-27 |
Family
ID=81708296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/130660 WO2022104752A1 (zh) | 2020-11-20 | 2020-11-20 | 发光基板及显示装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US20230387140A1 (zh) |
CN (1) | CN114938677A (zh) |
WO (1) | WO2022104752A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024011656A1 (zh) * | 2022-07-15 | 2024-01-18 | Tcl华星光电技术有限公司 | 发光基板及显示装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000089691A (ja) * | 1998-09-11 | 2000-03-31 | Casio Comput Co Ltd | 自発光表示装置 |
CN109801568A (zh) * | 2019-03-26 | 2019-05-24 | 大连集思特科技有限公司 | 一种led级联式透明显示屏 |
CN110164326A (zh) * | 2019-06-17 | 2019-08-23 | 大连集思特科技有限公司 | 一种led级联式透明显示屏 |
CN110265454A (zh) * | 2019-06-25 | 2019-09-20 | 上海天马微电子有限公司 | 一种显示面板、其制作方法及显示装置 |
-
2020
- 2020-11-20 WO PCT/CN2020/130660 patent/WO2022104752A1/zh active Application Filing
- 2020-11-20 CN CN202080002923.4A patent/CN114938677A/zh active Pending
- 2020-11-20 US US18/033,048 patent/US20230387140A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000089691A (ja) * | 1998-09-11 | 2000-03-31 | Casio Comput Co Ltd | 自発光表示装置 |
CN109801568A (zh) * | 2019-03-26 | 2019-05-24 | 大连集思特科技有限公司 | 一种led级联式透明显示屏 |
CN110164326A (zh) * | 2019-06-17 | 2019-08-23 | 大连集思特科技有限公司 | 一种led级联式透明显示屏 |
CN110265454A (zh) * | 2019-06-25 | 2019-09-20 | 上海天马微电子有限公司 | 一种显示面板、其制作方法及显示装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024011656A1 (zh) * | 2022-07-15 | 2024-01-18 | Tcl华星光电技术有限公司 | 发光基板及显示装置 |
Also Published As
Publication number | Publication date |
---|---|
US20230387140A1 (en) | 2023-11-30 |
CN114938677A (zh) | 2022-08-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2021249120A1 (zh) | 发光基板及显示装置 | |
US20230052091A1 (en) | Array substrate, display panel and display module | |
WO2021174473A1 (zh) | 发光基板及其驱动方法、发光模组、显示装置 | |
CN114141204B (zh) | 背光驱动电路及显示装置 | |
WO2022104752A1 (zh) | 发光基板及显示装置 | |
US11881184B2 (en) | Light emitting substrate, method of driving light emitting substrate, and display device | |
WO2022110238A1 (zh) | 发光基板及显示装置 | |
CN112669761B (zh) | 一种显示面板及其制备方法、显示装置 | |
KR20190004608A (ko) | 디스플레이 장치 및 그 구동 방법 | |
WO2021253397A1 (zh) | 显示模组和显示装置 | |
US20240186333A1 (en) | Light-emitting substrate and display apparatus | |
WO2023028794A1 (zh) | 发光基板及显示装置 | |
WO2023028793A1 (zh) | 发光基板及显示装置 | |
CN111091787A (zh) | 分立元件驱动的led背光单元、组件、电路以及显示装置 | |
US20240194651A1 (en) | Light-emitting substrate and display device | |
WO2024016332A1 (zh) | 布线基板及电子装置 | |
US20240170628A1 (en) | Light-emitting substrate and manufacturing method thereof, backlight, and display device | |
WO2022147791A1 (zh) | 阵列基板、其驱动方法及显示装置 | |
JPS60229091A (ja) | 液晶表示装置 | |
JP4581327B2 (ja) | 配線基板及び表示モジュール及び電子機器 | |
CN116246564A (zh) | 一种显示面板及显示装置 | |
KR20230126287A (ko) | 연성 필름 및 이를 포함하는 표시 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 20962043 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18033048 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 20962043 Country of ref document: EP Kind code of ref document: A1 |
|
32PN | Ep: public notification in the ep bulletin as address of the adressee cannot be established |
Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 17.01.2024) |