CN116580670B - Driving circuit, driving chip and electronic equipment of display device - Google Patents
Driving circuit, driving chip and electronic equipment of display device Download PDFInfo
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- 238000010586 diagram Methods 0.000 description 18
- 239000004973 liquid crystal related substance Substances 0.000 description 8
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 230000003190 augmentative effect Effects 0.000 description 2
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- 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]
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- 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]
- G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—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] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
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- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- General Physics & Mathematics (AREA)
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- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The application provides a driving circuit, a driving chip and an electronic device of a display device, comprising: a pixel array including a plurality of pixel driving units; if the display device is in direct current driving, each pixel driving unit independently drives one display unit of the display device corresponding to the pixel driving unit; if the display device is ac driven, a plurality of pixel driving units commonly drive one display unit of the display device. Through pixel interconnection design and targeted signal control, the drive backboard can support both a direct current drive display device and an alternating current drive display device without changing all light covers of a chip or changing a small part of light covers. The display device which can be realized by two or even three chips originally can be realized by adopting the design of the embodiment through one chip, so that the chip flow cost can be effectively reduced, and the workload of chip design is greatly reduced.
Description
Technical Field
The present application relates to the technical field of micro display devices, and in particular, to a driving circuit, a driving chip and an electronic device for a display device.
Background
In recent years, as augmented Reality (Augmented Reality, AR) and Virtual Reality (VR) have gradually come into our lives, the Micro display chips used in AR and VR have been studied by more technicians, and display technologies currently used in the Micro display chips mainly include liquid crystal on silicon (Liquid Crystal On Silicon, LCOS), organic light emitting diodes (Organic Light Emitting Diode, OLED), micro light emitting diodes (Micro-Organic Light Emitting Diode, micro-LED), quantum dot light emitting diodes (Quantum Dot Light Emitting Diodes, QLED), and the like.
The operating principle of liquid crystal display is different from that of light emitting diode display. The liquid crystal is an alternating current driving device, and the polarity of voltage required to be applied to two ends of the liquid crystal is required to be continuously turned over between positive and negative when the liquid crystal works, otherwise, the liquid crystal is damaged. The light emitting diode devices are direct current driving devices, and are classified into common cathode light emission and common anode light emission according to device designs. The common cathode light emitting diode requires a pixel driving voltage higher than the common electrode voltage, and the common anode light emitting diode requires a pixel driving voltage lower than the common electrode voltage, but the polarity of the voltage across the light emitting diode is required to be maintained during operation regardless of whether the common cathode light emitting diode or the common anode light emitting diode is operated.
However, in the prior art, different driving circuits are required to be respectively arranged for the direct current driving device and the alternating current driving device, and the number of required driving chips is large, so that the chip flow cost and the workload of chip design are improved.
Disclosure of Invention
In view of the above, the present application is directed to a driving circuit, a driving chip and an electronic device for a display device, so that a direct current driving device and an alternating current driving device can be driven simultaneously by one chip, thereby effectively reducing the chip cost and greatly reducing the workload of chip design.
In a first aspect, an embodiment of the present application provides a driving circuit of a display device, including: a pixel array including a plurality of pixel driving units; if the display device is in direct current driving, each pixel driving unit independently drives one display unit of the display device corresponding to the pixel driving unit; if the display device is ac driven, a plurality of pixel driving units commonly drive one display unit of the display device.
In an alternative embodiment of the present application, if the display device is ac driven, the plurality of pixel driving units are connected through a connection switch or a high-level metal.
In an alternative embodiment of the present application, if the display device is dc driven, the plurality of pixel driving units perform driving operation at the same time; if the display device is in alternating current driving, a plurality of pixel driving units corresponding to one display unit perform driving work based on a preset switching mode; the number of the pixel driving units for simultaneously driving is not more than half of the number of the pixel driving units corresponding to the display unit.
In an alternative embodiment of the present application, the driving circuit of the display device further includes: column driving; the column driving is used for providing driving signals of a plurality of pixel driving units.
In an alternative embodiment of the application, if the display device is dc driven, the column driving provides signals of the same gamma characteristic curve to a plurality of pixel driving units; if the display device is AC driven, the column driving provides a first signal or a second signal to the plurality of pixel driving units; the first signal and the second signal are signals with different gamma characteristic curves.
In an alternative embodiment of the present application, the driving circuit of the display device further includes: a row drive; the row driving is used for providing write signals of a plurality of pixel driving units.
In an alternative embodiment of the present application, if the display device is dc driven, the plurality of pixel driving units perform data writing operation on a row driving basis for each frame; if the display device is AC driven, the partial pixel driving unit performs data writing operation based on each frame of row driving, and the partial pixel driving unit performs writing operation based on half of the row driving of each pair of parity staggering of the sub-parity frames.
In an alternative embodiment of the present application, the driving circuit of the display device further includes: a control circuit; the control circuit is for providing column drive signals, row write control signals and/or pixel display control signals based on the type of display device.
In a second aspect, an embodiment of the present application further provides a driving chip of a display device, where the driving chip of the display device includes the driving circuit of the display device.
In a third aspect, an embodiment of the present application further provides an electronic device, where the electronic device includes a display device and a driving chip of the display device.
The embodiment of the application has the following beneficial effects:
the embodiment of the application provides a driving circuit, a driving chip and electronic equipment of a display device, which can realize that a driving backboard can support a direct current driving display device and an alternating current driving display device under the condition that all light covers of the chip are not changed or a small part of light covers are changed through pixel interconnection design and targeted signal control. The display device which can be realized by two or even three chips originally can be realized by adopting the design of the embodiment through one chip, so that the chip flow cost can be effectively reduced, and the workload of chip design is greatly reduced.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part will be obvious from the description, or may be learned by practice of the techniques of the disclosure.
The foregoing objects, features and advantages of the disclosure will be more readily apparent from the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a driving circuit of a display device according to an embodiment of the present application;
fig. 2 is a schematic diagram of a pixel array structure according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a pixel structure according to an embodiment of the present application;
FIG. 4 is a schematic diagram of a driving signal of a pixel array of a DC driving display device according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a driving signal of a pixel array of an AC driving display device according to an embodiment of the present application;
FIG. 6 is a schematic diagram of another pixel array structure according to an embodiment of the present application;
FIG. 7 is a schematic diagram of another driving signal for a pixel array of a DC-driven display device according to an embodiment of the present application;
FIG. 8 is a schematic diagram of another pixel array structure according to an embodiment of the present application;
fig. 9 is a schematic diagram of another driving signal for driving a pixel array of a display device according to an embodiment of the application.
Icon:
10-a driving circuit; a 100-pixel array; a 101-pixel driving unit; 102-pixel interconnection switches; 103-pixel interconnection switch control lines; 104-row writing signal lines; 105—a partial pixel display control signal line; 107—partial column signal drive lines; 109-off state; 110-on state; 201-a column signal driving module; 202-a row writing, displaying and pixel interconnection signal generating and driving module; 203-a control module; 204-column data and column drive control signals; 205-row address, pixel interconnect, display control signal lines.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the present application will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Based on the above, the embodiment of the application provides a driving circuit, a driving chip and an electronic device of a display device, in particular to a driving circuit capable of driving multiple micro display devices, which relates to a product capable of driving different types of display devices by using the same driving back plate, and can drive the same driving chip to drive both a direct current driving display device and an alternating current driving display device through multiplexing pixels or changing driving time sequence.
For the convenience of understanding the present embodiment, a driving circuit of a display device disclosed in the embodiment of the present application will be described in detail.
Embodiment one:
an embodiment of the present application provides a driving circuit of a display device, referring to a schematic structural diagram of the driving circuit of the display device shown in fig. 1, the driving circuit 10 of the display device includes: a pixel array 100, the pixel array 100 including a plurality of pixel driving units 101; if the display device is dc driven, each pixel driving unit 101 individually drives one display unit of the display device corresponding to the pixel driving unit; if the display device is ac-driven, the plurality of pixel driving units 101 commonly drive one display unit of the display device.
The driving circuit in this embodiment includes: pixel array, row drive, column drive and control circuitry. The pixel array comprises a plurality of pixel driving units. In this embodiment, for different display device characteristics, the pixel driving units may be driven in different combinations: for devices (such as LED devices) which do not need to drive polarity inversion in direct current driving, each pixel driving unit independently drives a corresponding display unit and is divided into independent sub-pixels; for a device (e.g., a liquid crystal device) requiring driving polarity inversion for alternating current driving, a plurality of pixel driving units are combined into a group of common driving, and the same display unit is driven by time division combination.
The embodiment of the application provides a driving circuit of a display device, which can realize that a driving backboard can support a direct current driving display device and an alternating current driving display device under the condition of not changing all light covers of a chip or changing a small part of light covers through pixel interconnection design and targeted signal control. The display device which can be realized by two or even three chips originally can be realized by adopting the design of the embodiment through one chip, so that the chip flow cost can be effectively reduced, and the workload of chip design is greatly reduced.
Embodiment two:
the present embodiment provides another driving circuit of a display device, which is implemented on the basis of the above-described embodiments. In some embodiments, if the display device is ac driven, the plurality of pixel driving units are connected through a connection switch or a high-level metal.
For the device that needs to drive polarity inversion in ac driving, when a plurality of pixel driving units compose a group to jointly drive the same display device, there may be a plurality of different implementation manners: by adding a connection switch between different pixel driving units; or, by modifying the pixel driving unit layout, the pixel driving units to be connected are directly connected together by using high-layer metal.
In some embodiments, if the display device is dc driven, the plurality of pixel driving units perform driving operation at the same time; if the display device is in alternating current driving, a plurality of pixel driving units corresponding to one display unit perform driving work based on a preset switching mode; the number of the pixel driving units for simultaneously driving is not more than half of the number of the pixel driving units corresponding to the display unit.
The driving time of the pixel driving unit varies for different types of display devices: for the device which does not need to drive polarity inversion in direct current driving, each pixel driving unit independently drives the corresponding display unit, and all the pixel driving units simultaneously drive in the display time. For the device which needs to drive polarity inversion in alternating current driving, a plurality of pixel driving units are combined to jointly drive the same display device, only less than half of the pixel driving units drive the display device at any moment in display time according to different pixel combinations, and the pixel driving units are sequentially switched according to a certain regular switching mode.
In some embodiments, the driving circuit of the display device further includes: column driving; the column driving is used for providing driving signals of a plurality of pixel driving units.
The signals driven by the pixel driving units in the embodiment are provided by column driving, and the pixel driving units are driven in different combination modes corresponding to different display device characteristics.
Specifically, if the display device is dc-driven, the column driving provides signals of the same gamma characteristic curve to the plurality of pixel driving units; if the display device is AC driven, the column driving provides a first signal or a second signal to the plurality of pixel driving units; the first signal and the second signal are signals with different gamma characteristic curves.
For devices that do not require driving polarity inversion for dc driving, column driving provides signals of the same GAMMA (GAMMA) characteristic curve to all pixel driving units; for the device requiring polarity inversion of the ac drive, the column drive provides two signals (i.e., a first signal and a second signal) of the GAMMA characteristic curves to the pixel driving units, and each pixel driving unit selects the corresponding GAMMA characteristic curve signal according to its own requirement.
In some embodiments, the driving circuit of the display device further includes: a row drive; the row driving is used for providing write signals of a plurality of pixel driving units.
The writing signals of the pixel driving units are provided by row driving, and the pixel driving units are driven in different combination modes corresponding to different display device characteristics.
Specifically, if the display device is dc-driven, the plurality of pixel driving units perform data writing operation on a row-driving basis for each frame; if the display device is AC driven, the partial pixel driving unit performs data writing operation based on each frame of row driving, and the partial pixel driving unit performs writing operation based on half of the row driving of each pair of parity staggering of the sub-parity frames.
Aiming at the device which does not need to drive polarity inversion in direct current driving, each pixel driving unit independently drives the corresponding display device, and each frame needs to write data into all the running lines; for the device which needs to drive polarity inversion in alternating current driving, a plurality of pixel driving units are combined into a group to jointly drive the same display device, and according to different pixel combinations, writing operations are performed on all rows in each frame and half of writing operations are performed on parity staggered pairs of parity frames.
In some embodiments, the driving circuit of the display device further includes: a control circuit; the control circuit is for providing column drive signals, row write control signals and/or pixel display control signals based on the type of display device.
For the driving circuit provided in this embodiment, referring to a schematic diagram of a pixel array structure shown in fig. 2, fig. 2 depicts a structure of the pixel array 100, including: a pixel driving unit 101, a pixel interconnection switch 102, a pixel interconnection switch control line 103, a partial row write signal line 104, a partial pixel display control signal line 105, and a partial column signal driving line 107.
Referring to a schematic diagram of a pixel structure shown in fig. 3, fig. 3 depicts a driving circuit architecture that can drive a variety of microdisplay devices, including: column signal driving module 201, row writing, display, pixel interconnect signal generation and driving module 202, control module 203, column data and column drive control signals 204, row addresses, pixel interconnect, display control signal lines 205.
Referring to a schematic diagram of a driving signal for a pixel array of a dc-driven display device shown in fig. 4, fig. 4 illustrates a driving method for the dc-driven display device. The pixel interconnection switch control line 103 is continuously low level so that the pixel interconnection switch 102 is always kept off; the partial pixel display control signal line 105 is continuously high level so that all the pixel driving units 101 always keep outputting; a part of the column signal driving lines 107 drive signals conforming to the same characteristics in accordance with data; the row writing signal lines 104 are sequentially turned on and off, and device data of each row of pixel driving units 101 is sequentially input.
Referring to a schematic diagram of an ac driven display device pixel array drive signal shown in fig. 5, fig. 5 depicts an ac driven display device drive scheme. The pixel interconnection switch control line 103 is continuously high level, so that the pixel interconnection switch 102 is always kept on, and the output of every two adjacent pixel driving units 101 in the pixel array 100 are connected together; the partial pixel display control signal lines 105 are staggered high-low square wave signals, so that each two pixel driving units 101 connected together always keep one output, and the other one does not output; a part of the column signal driving lines 107 drive signals conforming to opposite characteristics according to the respective operation states of each two pixel driving units 101 connected together; the row writing signal lines 104 are sequentially turned on and off, and device data of each row of pixel driving units 101 is sequentially input. Thus, the pixel array 100 can operate in an ac driven display state, and the ac driven display device can be switched between positive and negative polarities all the time.
Referring to the schematic diagram of another pixel array structure shown in fig. 6, fig. 6 depicts a pixel array structure comprising: the pixel array 100, the pixel driving unit 101, the partial row write signal line 104, the partial pixel display control signal line 105, the partial column signal driving line 107, and the off state 109 can be realized by modifying a small part of the layout hierarchy.
Referring to fig. 7, which is a schematic diagram of another driving signal for a pixel array of a dc-driven display device, fig. 7 illustrates a driving method for the dc-driven display device. The off state 109 makes all the pixel driving units 101 pixels independent of each other; the partial pixel display control signal line 105 is continuously high level so that all the pixel driving units 101 always keep outputting; a part of the column signal driving lines 107 are sequentially switched according to the data driving signal lines 104 which are consistent with the same characteristics, so that the device data of each row of pixel driving units 101 is sequentially input.
Referring to a schematic diagram of another pixel array structure shown in fig. 8, fig. 8 depicts a pixel array structure comprising: the pixel array 100, the pixel driving unit 101, the pixel interconnection switch control line 103, the row writing signal line 104, the partial pixel display control signal line 105, the partial column signal driving line 107 and the on state 110 can be realized by modifying a small part of layout layers.
Referring to another schematic diagram of ac-driven display device pixel array drive signals shown in fig. 9, fig. 9 depicts an ac-driven display device drive scheme in which: a conductive state 110 connecting the outputs of each two adjacent pixel driving units 101 in the pixel array 100; the partial pixel display control signal lines 105 are staggered high-low square wave signals, so that each two pixel driving units 101 connected together always keep one output, and the other one does not output; a part of the column signal driving lines 107 drive signals conforming to opposite characteristics according to the respective operation states of each two pixel driving units 101 connected together; the row writing signal lines 104 are sequentially turned on and off, and device data of each row of pixel driving units 101 is sequentially input. Thus, the pixel array 100 can operate in an ac driven display state, and the ac driven display device can be switched between positive and negative polarities all the time.
In summary, the embodiment of the application can realize that the driving backboard can support both a direct current driving display device and an alternating current driving display device under the condition that all light covers of a chip are not changed or a small part of light covers are changed through pixel interconnection design and targeted signal control. The display device which can be realized by two or even three chips originally can be realized by adopting the design of the embodiment through one chip, so that the chip flow cost can be effectively reduced, and the workload of chip design is greatly reduced.
Embodiment III:
corresponding to the above embodiments, the embodiments of the present application provide a driving chip of a display device, which includes the driving circuit of the display device provided in the above embodiments.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the driving chip of the display device described above may refer to the corresponding process in the foregoing embodiment, which is not repeated here.
Embodiment four:
corresponding to the above embodiments, the present application provides an electronic apparatus including a display device and the driving chip provided in the above embodiments.
It will be clear to those skilled in the art that, for convenience and brevity of description, the specific working process of the electronic device described above may refer to the corresponding process in the foregoing embodiment, which is not described herein again.
In addition, in the description of embodiments of the present application, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present application, and are not intended to limit the scope of the present application, but it should be understood by those skilled in the art that the present application is not limited thereto, and that the present application is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A driving circuit of a display device, the driving circuit of the display device comprising: a pixel array including a plurality of pixel driving units;
if the display device is in direct current driving, each pixel driving unit independently drives one display unit of the display device corresponding to the pixel driving unit; a plurality of pixel driving units simultaneously perform driving operation;
if the display device is AC driven, a plurality of pixel driving units jointly drive one display unit of the display device; the pixel driving units corresponding to one display unit perform driving work based on a preset switching mode; the number of the pixel driving units for simultaneously driving is not more than half of the number of the pixel driving units corresponding to the display unit.
2. A driving circuit of a display device according to claim 1, wherein if the display device is ac driven, a plurality of the pixel driving units are connected through a connection switch or a high-level metal.
3. The drive circuit of a display device according to claim 1 or 2, wherein the drive circuit of the display device further comprises: column driving;
the column driver is configured to supply driving signals of a plurality of the pixel driving units.
4. A driving circuit of a display device according to claim 3, wherein if the display device is dc driven, the column driving supplies the same gamma characteristic signal to a plurality of the pixel driving units;
if the display device is AC driven, the column driving provides a first signal or a second signal to a plurality of the pixel driving units; wherein the first signal and the second signal are signals of different gamma characteristic curves.
5. The drive circuit of a display device according to claim 1 or 2, wherein the drive circuit of the display device further comprises: a row drive;
the row driver is configured to supply write signals to a plurality of the pixel driving units.
6. The driving circuit of a display device according to claim 5, wherein if the display device is dc-driven, the plurality of pixel driving units perform data writing operation per frame based on the row driving;
if the display device is AC driven, part of the pixel driving units conduct data writing operation based on each frame of the row driving, and part of the pixel driving units conduct half row writing operation based on each pair of parity staggering of the row driving sub-parity frames.
7. The drive circuit of a display device according to claim 1 or 2, wherein the drive circuit of the display device further comprises: a control circuit;
the control circuit is configured to provide column drive signals, row write control signals, and/or pixel display control signals based on a type of the display device.
8. A driver chip of a display device, characterized in that the driver chip of a display device comprises the driver circuit of a display device according to any of claims 1-7.
9. An electronic apparatus comprising a display device and the driving chip of the display device according to claim 8.
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