CN113707648A - Display module and display panel - Google Patents
Display module and display panel Download PDFInfo
- Publication number
- CN113707648A CN113707648A CN202010371393.2A CN202010371393A CN113707648A CN 113707648 A CN113707648 A CN 113707648A CN 202010371393 A CN202010371393 A CN 202010371393A CN 113707648 A CN113707648 A CN 113707648A
- Authority
- CN
- China
- Prior art keywords
- layer
- light
- display module
- semiconductor layer
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- H01L25/16—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
-
- 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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/0426—Layout of electrodes and connections
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Theoretical Computer Science (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Led Device Packages (AREA)
- Push-Button Switches (AREA)
- Liquid Crystal (AREA)
Abstract
The application relates to the technical field of display, and discloses a display module assembly and display panel, display module assembly includes: the light-emitting device comprises a light-emitting device layer and at least two electric connection layers, wherein the light-emitting device layer comprises a light-emitting surface and a backlight surface, and the electric connection layers are arranged on the backlight surface of the light-emitting device layer; the light-emitting device layer comprises a plurality of light-emitting units which are arranged in an array mode, each light-emitting unit comprises at least two electrodes, and the at least two electrodes are arranged on the backlight surface of the light-emitting device layer; each electric connection layer comprises at least one conductive routing, at least two electrodes comprise a first electrode and a second electrode, and the first electrode and the second electrode are respectively connected to different electric connection layers; the first electrodes of part or all of the light-emitting units positioned in the same row are connected to the same conductive wire in the same layer of electric connection layer; the second electrodes of part or all of the light-emitting units positioned in the same column are connected to the same conductive wire in the same layer of electric connection layer; the smart and flexible wiring mode is realized, the connection with the driving unit is realized, and the image display is realized.
Description
Technical Field
The application relates to the technical field of display, for example, relate to a display module assembly and display panel.
Background
Currently, the size of the Light Emitting unit in the display panel is getting smaller, such as Mini LED, Micro LED (Micro Light Emitting Diode), and the like.
In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:
the electrode of each light emitting unit needs to be connected to the driving unit, and the smaller the size of the light emitting unit is, the more the number of the light emitting units in the same area is, the more the conductive wires connected to the driving unit are, and the layout of the conductive wires is not flexible enough.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a display module and a display panel, which are used for solving the technical problem that the conductive wiring layout of the electrodes of the light-emitting units is not flexible enough.
In some embodiments, a display module is provided, which includes a light emitting device layer and at least two electrical connection layers, wherein the light emitting device layer includes a light emitting surface and a backlight surface, and the electrical connection layers are disposed on the backlight surface of the light emitting device layer;
the light-emitting device layer comprises a plurality of light-emitting units which are arranged in an array mode, each light-emitting unit comprises at least two electrodes, and the at least two electrodes are arranged on the backlight surface of the light-emitting device layer;
each electric connection layer comprises at least one conductive routing, at least two electrodes comprise a first electrode and a second electrode, and the first electrode and the second electrode are respectively connected to different electric connection layers;
the first electrodes of part or all of the light-emitting units positioned in the same row are connected to the same conductive wire in the same layer of electric connection layer;
the second electrodes of part or all of the light-emitting units in the same column are connected to the same conductive trace in the same layer of the electrical connection layer.
In some embodiments, an insulating layer is disposed between adjacent electrical connection layers;
an insulating layer may be disposed between the electrical connection layer and the light emitting device layer.
In some embodiments, the first electrodes of some or all of the light emitting cells in the same row may be connected to the same conductive trace in the same layer of the electrical connection layer through the first conductive structure.
In some embodiments, the first conductive structure may include a first conductive via and a conductive material disposed within the first conductive via.
In some embodiments, the second electrodes of some or all of the light emitting cells in the same column may be connected to the same conductive trace in the same electrical connection layer through the second conductive structure.
In some embodiments, the second conductive structure may include a second conductive via and a conductive material disposed within the second conductive via.
In some embodiments, the first electrodes of some or all of the light emitting cells of at least one row may be connected to the same conductive trace in the same layer of the electrical connection layer.
In some embodiments, the second electrodes of some or all of the light emitting cells of at least one column may be connected to the same conductive trace in the same layer of the electrical connection layer.
In some embodiments, an isolation layer may be disposed between adjacent light emitting cells.
In some embodiments, the isolation layer comprises at least one of an insulating light reflecting material and an insulating light absorbing material.
In some embodiments, the light emitting unit may include a first semiconductor layer, an active layer, and a second semiconductor layer, one surface of the first semiconductor layer may be a light emitting surface, and the other surface may be sequentially provided with the active layer and the second semiconductor layer;
the longitudinal projection of the second semiconductor layer covers a part of the first semiconductor layer and does not exceed the edge of the first semiconductor layer;
the first electrode may be disposed on a portion of the first semiconductor layer that is not covered by the longitudinal projection of the second semiconductor layer;
the second electrode may be disposed on a side of the second semiconductor layer away from the first semiconductor layer.
In some embodiments, the longitudinal projection of the second electrode does not extend beyond the edge of the second semiconductor layer.
In some embodiments, the portion of the first semiconductor layer not covered by the longitudinal projection of the second semiconductor layer may be located at an edge or inside of the first semiconductor layer.
In some embodiments, the portion of the first semiconductor layer not covered by the longitudinal projection of the second semiconductor layer may be located at an edge of the first semiconductor layer.
In some embodiments, the first semiconductor layer, the active layer, and the second semiconductor layer may collectively constitute a Mesa step.
In some embodiments, the slope of the Mesa step may be 40 to 90 degrees.
In some embodiments, a portion of the first semiconductor layer not covered by the longitudinal projection of the second semiconductor layer may be located inside the first semiconductor layer, and the light emitting cell may further include a hole penetrating the active layer and the second semiconductor layer from the first semiconductor layer.
In some embodiments, the first electrode may be disposed within the aperture.
In some embodiments, the first electrode and the sidewall of the hole may be filled with an insulating material therebetween.
In some embodiments, the sidewalls and floor of the well may be perpendicular or sloped.
In some embodiments, the area of the first electrode on the side close to the backlight surface may be larger than the area on the side far from the backlight surface.
In some embodiments, a cross section of the first electrode along a light emitting direction of the light emitting unit is a trapezoid, and an upper base of the trapezoid is close to the light emitting surface.
In some embodiments, a light conversion layer may be further disposed on the light emitting surface.
In some embodiments, the light conversion layer may include at least a light conversion material and a dispersion medium of the light conversion material.
In some embodiments, a display panel is provided, which includes the display module.
The display module and the display panel provided by the embodiment of the disclosure can realize the following technical effects:
the smart and flexible wiring mode realizes connection with the driving unit, realizes image display, can reduce pins of the driving unit for connecting and wiring to a certain extent, and is particularly suitable for the light-emitting unit with smaller size.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic cross-sectional structure diagram of a display module according to a first embodiment of the disclosure;
fig. 2 is a schematic arrangement diagram of light emitting units in a display module according to an embodiment of the disclosure;
fig. 3 is a schematic cross-sectional structure diagram of a display module according to a second embodiment of the disclosure;
fig. 4 is a schematic cross-sectional structure diagram of a display module according to a third embodiment of the disclosure;
fig. 5 is a schematic structural diagram of an embodiment of a conductive trace in a display module according to an embodiment of the disclosure;
fig. 6 is a schematic structural diagram of a second embodiment of conductive traces in a display module according to an embodiment of the disclosure;
fig. 7 is a schematic structural diagram of a third embodiment of a conductive trace in a display module according to the present disclosure;
fig. 8 is a schematic cross-sectional structure diagram of a display module according to a fourth embodiment of the disclosure;
fig. 9 is a schematic cross-sectional structure view of a display module according to a fifth embodiment of the disclosure;
fig. 10 is a schematic distribution diagram of an embodiment of first electrodes and second electrodes in a display module provided in an embodiment of the disclosure;
fig. 11 is a schematic distribution diagram of a second embodiment of the first electrode and the second electrode in the display module provided in the embodiment of the disclosure;
FIG. 12 is a schematic view of a third embodiment of the distribution of the first and second electrodes in the display module according to the embodiment of the disclosure;
fig. 13 is a schematic distribution diagram of a fourth embodiment of the first electrode and the second electrode in the display module provided in the embodiment of the disclosure;
fig. 14 is a schematic cross-sectional view illustrating an embodiment of a light-emitting unit in a display module according to an embodiment of the disclosure;
fig. 15 is a schematic cross-sectional view illustrating a second embodiment of a light-emitting unit in a display module according to an embodiment of the disclosure;
fig. 16 is a schematic cross-sectional structure view of a display module according to a sixth embodiment of the disclosure;
fig. 17 is a schematic cross-sectional structure view of a display module according to a seventh embodiment of the disclosure;
fig. 18 is a schematic cross-sectional view illustrating a third embodiment of a light-emitting unit in a display module according to an embodiment of the disclosure;
fig. 19 is a schematic cross-sectional view illustrating a fourth embodiment of a light-emitting unit in a display module according to an embodiment of the disclosure;
fig. 20 is a schematic cross-sectional view illustrating a fifth embodiment of a light-emitting unit in a display module according to an embodiment of the disclosure;
fig. 21 is a schematic cross-sectional view illustrating a sixth embodiment of a light-emitting unit in a display module according to an embodiment of the disclosure;
fig. 22 is a schematic cross-sectional structure view of a display module according to an eighth embodiment of the present disclosure;
fig. 23 is a schematic structural diagram of an embodiment of a display panel provided in the embodiment of the present disclosure.
Reference numerals:
1: a light emitting device layer; 10: a light emitting unit; 2: an electrical connection layer; 3: an insulating layer; 41: a first conductive via; 42: a second conductive via; 5: an isolation layer; 6: a Mesa step; 7: an aperture;
101: a first electrode; 102: a second electrode; 103: a first semiconductor layer; 104: an active layer; 105: a second semiconductor layer;
100: a display module; 200: a display panel.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic cross-sectional structure diagram of an embodiment of a display module provided in the present disclosure, fig. 2 is a schematic arrangement diagram of light emitting units in the display module provided in the present disclosure, and an embodiment of the present disclosure provides a display module 100, including a light emitting device layer 1 and at least two electrical connection layers 2, where the light emitting device layer 1 includes a light emitting surface and a backlight surface, and the electrical connection layers 2 are disposed on the backlight surface of the light emitting device layer 1;
the light-emitting device layer 1 comprises a plurality of light-emitting units 10 arranged in an array, each light-emitting unit 10 comprises at least two electrodes, and the at least two electrodes are arranged on a backlight surface of the light-emitting device layer 1;
each layer of the electric connection layer 2 comprises at least one conductive trace, at least two electrodes comprise a first electrode 101 and a second electrode 102, and the first electrode 101 and the second electrode 102 are respectively connected to different electric connection layers;
the first electrodes 101 of some or all of the light emitting units 10 in the same row are connected to the same conductive trace in the same layer of electrical connection layer;
the second electrodes 102 of some or all of the light emitting cells 10 in the same column are connected to the same conductive trace in the same electrical connection layer.
In the embodiment of the present disclosure, the electrical connection layer 2 is formed on the light emitting device layer 2 by a metal Deposition process, which includes electroplating, Physical Vapor Deposition (PVD), and the like, rather than bulk transfer. Wherein the light emitting cells are contiguous areas on the same wafer.
Referring to fig. 3, fig. 3 is a schematic cross-sectional structure diagram in some embodiments of the display module provided in the present disclosure, and in some embodiments, the display module includes three electrical connection layers, namely a first electrical connection layer, a second electrical connection layer, and a third electrical connection layer, wherein the first electrodes 101 of a part of the light emitting units 10 located in a same row are connected to a same first conductive trace 21 in the first electrical connection layer, the first electrodes 101 of another part of the light emitting units 10 located in the same row are connected to a same third conductive trace 23 in the third electrical connection layer, and the second electrodes 102 of all the light emitting units 10 located in the same column are connected to a same second conductive trace 22 in the second electrical connection layer.
Referring to fig. 4, fig. 4 is a schematic cross-sectional structure diagram in some embodiments of the display module provided in the present disclosure, and in some embodiments, the display module includes three electrical connection layers, which are a first electrical connection layer, a second electrical connection layer, and a third electrical connection layer, where the first electrodes 101 of all the light emitting units 10 located in the same row are connected to the same third conductive trace 23 in the third electrical connection layer, the second electrodes 102 of some of the light emitting units 10 located in the same column are connected to the same first conductive trace 21 in the first electrical connection layer, and the second electrodes 102 of other some of the light emitting units 10 in the same column are connected to the same second conductive trace 22 in the second electrical connection layer.
Referring to fig. 1 and fig. 5, fig. 5 is a schematic structural diagram of some embodiments of conductive traces in a display module according to an embodiment of the present disclosure, and in some embodiments, the display module includes two electrical connection layers 2, which are a first electrical connection layer and a second electrical connection layer, respectively, where the first electrodes 101 of all the light emitting units 10 in the same row are connected to the same first conductive trace 21 in the first electrical connection layer; the second electrodes 102 of all the light emitting cells 10 in the same column are connected to the same second conductive trace 22 in the second electrical connection layer.
Referring to fig. 1 to 4, in some embodiments, an insulating layer 3 is disposed between adjacent electrical connection layers 2;
an insulating layer 3 is provided between the electrical connection layer 2 and the light emitting device layer 1.
In some embodiments, the first electrodes of some or all of the light emitting cells in the same row are connected to the same conductive trace in the same layer of the electrical connection layer through the first conductive structure.
In some embodiments, referring to fig. 1-4, the first conductive structure includes a first conductive via 41 and a conductive material disposed in the first conductive via 41, optionally, the first conductive via 41 penetrates the insulating layer 3.
In some embodiments, the second electrodes of some or all of the light emitting cells in the same column are connected to the same conductive trace in the same electrical connection layer through the second conductive structure.
In some embodiments, the second conductive structure includes a second conductive via and a conductive material disposed in the second conductive via 42.
The second conductive via 42 penetrates the insulating layer 3.
In some embodiments, the first electrodes of some or all of the light emitting cells in at least one row are connected to the same conductive trace in the same layer of the electrical connection layer.
In some embodiments, referring to fig. 6, fig. 6 is a schematic structural diagram of a second embodiment of conductive traces in a display module provided in the embodiment of the present disclosure, in which the first electrodes 101 of all the light emitting units 10 in two rows are connected to the first conductive traces 21 in the same layer of electrical connection layer, and the first electrodes 101 of some of the light emitting units 10 in two rows can also be connected to the second conductive traces 22 in the same layer of electrical connection layer.
According to actual requirements, the first electrodes of part or all of the light-emitting units in multiple rows can be connected to the same conductive wiring in the same layer of electric connection layer, and two or more light-emitting units can emit light as one sub-pixel, so that the light-emitting device is suitable for application scenes with large requirements on light intensity.
In some embodiments, the second electrodes of some or all of the light emitting cells in at least one column are connected to the same conductive trace in the same layer of the electrical connection layer.
In some embodiments, referring to fig. 7, fig. 7 is a schematic structural diagram of a third embodiment of conductive traces in a display module provided in the embodiment of the present disclosure, in which the first electrodes 101 of all light emitting units 10 in two rows are connected to the first conductive traces 21 in the same layer of electrical connection layer, and the first electrodes 101 of some light emitting units 10 in two rows can also be connected to the second conductive traces 22 in the same layer of electrical connection layer.
The second electrodes of part or all of the light-emitting units in multiple rows can be connected to the same conductive wiring in the same layer of electric connection layer according to actual requirements, and two or more light-emitting units can emit light as a sub-pixel, so that the light-emitting device is suitable for application scenes with large requirements on light intensity.
In some embodiments, referring to fig. 8, fig. 8 is a schematic cross-sectional structure view of a fourth embodiment of a display module provided in the present disclosure, and an isolation layer 5 is disposed between adjacent light emitting units 10.
In some embodiments, the isolation layer 5 includes at least one of an insulating light-reflecting material and an insulating light-absorbing material, which may be Si3N4, SiO2, etc., or an insulating light-reflecting or insulating light-absorbing material, or a combination of an insulating material and a reflecting material, or an insulating material and an absorbing material. The introduction of the spacer layer avoids the problem of crosstalk of display image signals between the light-emitting units.
In some embodiments, referring to fig. 9, fig. 9 is a schematic cross-sectional structure of a display module according to a fifth embodiment of the disclosure, in which a light emitting unit 10 includes a first semiconductor layer 103, an active layer 104, and a second semiconductor layer 105, one surface of the first semiconductor layer 103 is used as a light emitting surface, and the other surface is sequentially provided with the active layer 104 and the second semiconductor layer 105;
the longitudinal projection of the second semiconductor layer 105 covers a part of the first semiconductor layer 101, and does not exceed the edge of the first semiconductor layer 103;
the first electrode 101 is arranged on the first semiconductor layer 103 at a part which is not covered by the longitudinal projection of the second semiconductor layer;
the second electrode 102 is disposed on a surface of the second semiconductor layer 105 away from the first semiconductor layer 103.
In some embodiments, the first semiconductor layer 103 is an N-type semiconductor layer and the second semiconductor layer 105 is a P-type semiconductor layer.
In some embodiments, the first electrode 101 may be layered, cylindrical, threaded, truncated, or otherwise shaped. The second electrode 102 may be layered, columnar, threaded, frustoconical, or otherwise shaped.
In some embodiments, the longitudinal projection of the second electrode 102 does not exceed the edge of the second semiconductor layer 105, referring to fig. 10 and 11, fig. 10 is a schematic distribution diagram of an embodiment of the first electrode and the second electrode in the display module provided by the embodiment of the disclosure, and fig. 11 is a schematic distribution diagram of a second embodiment of the first electrode and the second electrode in the display module provided by the embodiment of the disclosure; the longitudinal projection of the second electrode 102 is the same as the longitudinal projection of the second semiconductor layer; referring to fig. 12 and 13, fig. 12 is a schematic distribution diagram of a third embodiment of the first electrode and the second electrode in the display module provided by the embodiment of the disclosure, fig. 13 is a schematic distribution diagram of a fourth embodiment of the first electrode and the second electrode in the display module provided by the embodiment of the disclosure, and a longitudinal projection of the second electrode 102 does not completely cover the second semiconductor layer.
In some embodiments, the portion of the first semiconductor layer 103 not covered by the longitudinal projection of the second semiconductor layer 105 is located at an edge or inside of the first semiconductor layer 103.
In some embodiments, referring to fig. 9, 10 and 12, the portion of the first semiconductor layer 103 not covered by the longitudinal projection of the second semiconductor layer 105 is located at the edge of the first semiconductor layer 103.
In some embodiments, referring to fig. 14 and 15, fig. 14 is a schematic cross-sectional structure diagram of an embodiment of a light emitting unit in a display module provided in an embodiment of the present disclosure, fig. 15 is a schematic cross-sectional structure diagram of a second embodiment of a light emitting unit in a display module provided in an embodiment of the present disclosure, and the first semiconductor layer 103, the active layer 104, and the second semiconductor layer 105 together form the Mesa step 6.
In some embodiments, the slope of the Mesa step is 40 to 90 degrees.
Referring to fig. 14, fig. 14 is a schematic cross-sectional structure diagram of an embodiment of a light emitting unit in a display module according to an embodiment of the present disclosure, a Mesa step 6 may be a vertical structure, referring to fig. 15, fig. 15 is a schematic cross-sectional structure diagram of a second embodiment of a light emitting unit in a display module according to an embodiment of the present disclosure, and the Mesa step 6 may be a slope.
In some embodiments, the Mesa step 6 may be 65 degrees.
In some embodiments, referring to fig. 11, 13 and 16, a portion of the first semiconductor layer 103 not covered by the longitudinal projection of the second semiconductor layer 105 is located inside the first semiconductor layer 103, and the light emitting cell 10 further includes a hole 7, the hole 7 penetrating the active layer 104 and the second semiconductor layer 105 from the first semiconductor layer 103.
In some embodiments, referring to fig. 16, fig. 16 is a schematic cross-sectional structure view of a display module according to a sixth embodiment of the disclosure, and optionally, the first electrode 101 may have a pillar structure, and the first electrode 107 having the pillar structure is disposed in the hole 7.
In some embodiments, the first electrode 101 of the pillar structure and the sidewall of the hole 7 are filled with an insulating material.
In some embodiments, referring to fig. 17, fig. 17 is a schematic cross-sectional structure diagram of a display module according to a seventh embodiment of the disclosure, optionally, the first electrode 101 may have a layered structure, the first electrode 101 of the layered structure is disposed in the hole 7, when the first electrode 101 has the layered structure, the first conductive via 41 extends into the hole 7, and an insulating material is filled between the first conductive via 41 and a sidewall of the hole 7.
In some embodiments, referring to fig. 18 and 19, fig. 18 is a schematic cross-sectional structure diagram of a third embodiment of a light-emitting unit in a display module provided by the embodiment of the disclosure, fig. 19 is a schematic cross-sectional structure diagram of a fourth embodiment of a light-emitting unit in a display module provided by the embodiment of the disclosure, and a sidewall of the hole 7 is perpendicular to or inclined from a bottom surface.
In some embodiments, referring to fig. 20, fig. 20 is a schematic cross-sectional structure diagram of a fifth embodiment of a light emitting unit in a display module provided in the embodiment of the present disclosure, a side wall of the hole 7 is perpendicular to the bottom surface, an area of the first electrode 101 near the backlight surface may be larger than an area of the first electrode 101 far from the backlight surface, optionally, a cross section of the first electrode 101 along a light emitting direction of the light emitting unit 10 is a trapezoid, an upper bottom edge of the trapezoid is close to the light emitting surface, and the light emitting direction of the light emitting unit 10 is shown by an arrow in fig. 20.
In some embodiments, referring to fig. 21, fig. 21 is a schematic cross-sectional structure diagram of a fifth embodiment of a light emitting unit in a display module provided in the embodiment of the present disclosure, a side wall and a bottom surface of the hole 7 are inclined, an area of the first electrode 101 near the backlight surface may be larger than an area of the first electrode 101 far from the backlight surface, optionally, a cross section of the first electrode 101 along a light emitting direction of the light emitting unit is trapezoidal, an upper bottom edge of the trapezoid is close to the light emitting surface, and the light emitting direction of the light emitting unit 10 is shown by an arrow in fig. 21.
In some embodiments, referring to fig. 22, fig. 22 is a schematic cross-sectional structure diagram of an eighth embodiment of the display module provided in the present disclosure, and a light emitting surface is further provided with a light conversion layer 8.
In some embodiments, the light conversion layer 8 comprises at least a light conversion material and a dispersion medium of the light conversion material.
The light conversion layer 8 may contain a color filter structure, and may contain at least a light conversion material and a dispersion medium of the light conversion material. The light conversion material may absorb light emitted from the light emitting unit and emit light of a color different from that of the absorbed light. The light conversion material corresponding to each light emitting cell may emit monochromatic light. The light emitted from the light conversion material corresponding to each light emitting unit may be polychromatic light in multiple spectral ranges or continuous spectrum covering visible spectral ranges, and forms monochromatic light after passing through the color filter. In any case, the light emitted from the light conversion layer at the position corresponding to the plurality of light emitting units forms a polygon including a white balance point on the chromaticity diagram with or without passing through the color filter, or forms a polygon including a white balance point together with the light emitted from the light emitting units on the chromaticity diagram.
In the display module provided in the embodiment of the present disclosure, the light emitting unit includes at least one of a light emitting diode, a mini LED, and a micro LED.
Referring to fig. 23, fig. 23 is a schematic structural diagram of an embodiment of a display panel provided in the present disclosure, and in some embodiments, a display panel 200 including the display module 100 is provided.
The display module and the display panel provided by the embodiment of the disclosure realize connection with the driving unit in a smart and flexible wiring mode, realize image display, reduce pins of the driving unit for connecting and wiring to a certain extent, and are particularly suitable for the light-emitting unit with smaller size.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of the disclosed embodiments includes the full ambit of the claims, as well as all available equivalents of the claims. As used in this application, although the terms "first," "second," etc. may be used in this application to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, unless the meaning of the description changes, so long as all occurrences of the "first element" are renamed consistently and all occurrences of the "second element" are renamed consistently. The first and second elements are both elements, but may not be the same element. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It is clear to those skilled in the art that, for convenience and brevity of description, the working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit may be merely a division of a logical function, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Claims (25)
1. A display module is characterized by comprising a light-emitting device layer and at least two electric connection layers, wherein the light-emitting device layer comprises a light-emitting surface and a backlight surface, and the electric connection layers are arranged on the backlight surface of the light-emitting device layer;
the light-emitting device layer comprises a plurality of light-emitting units arranged in an array mode, each light-emitting unit comprises at least two electrodes, and the at least two electrodes are arranged on a backlight surface of the light-emitting device layer;
each layer of electric connection layer comprises at least one conductive routing, the at least two electrodes comprise a first electrode and a second electrode, and the first electrode and the second electrode are respectively connected to different electric connection layers;
the first electrodes of part or all of the light-emitting units positioned in the same row are connected to the same conductive wire in the same layer of electric connection layer;
the second electrodes of part or all of the light-emitting units in the same column are connected to the same conductive trace in the same layer of the electrical connection layer.
2. The display module of claim 1, wherein an insulating layer is disposed between adjacent electrical connection layers;
an insulating layer is arranged between the electric connection layer and the light-emitting device layer.
3. The display module according to claim 2, wherein the first electrodes of some or all of the light emitting cells in a same row are connected to a same conductive trace in a same electrical connection layer through the first conductive structure.
4. The display module of claim 3, wherein the first conductive structure comprises a first conductive via and a conductive material disposed in the first conductive via.
5. The display module according to claim 2, wherein the second electrodes of some or all of the light emitting units in the same column are connected to the same conductive trace in the same electrical connection layer through the second conductive structure.
6. The display module of claim 5, wherein the second conductive structure comprises a second conductive via and a conductive material disposed in the second conductive via.
7. The display module according to claim 1, wherein the first electrodes of some or all of the light emitting cells in at least one row are connected to the same conductive trace in the same electrical connection layer.
8. The display module according to claim 1, wherein the second electrodes of some or all of the light emitting cells in at least one row are connected to the same conductive trace in the same electrical connection layer.
9. The display module according to claim 1, wherein an isolation layer is disposed between adjacent light emitting units.
10. The display module of claim 9, wherein the isolation layer comprises at least one of an insulating light reflecting material and an insulating light absorbing material.
11. The display module as claimed in claim 1, wherein the light emitting unit comprises a first semiconductor layer, an active layer and a second semiconductor layer, one surface of the first semiconductor layer is used as a light emitting surface, and the active layer and the second semiconductor layer are sequentially disposed on the other surface of the first semiconductor layer;
the longitudinal projection of the second semiconductor layer covers a part of the first semiconductor layer and does not exceed the edge of the first semiconductor layer;
the first electrode is arranged on a part, which is not covered by the longitudinal projection of the second semiconductor layer, of the first semiconductor layer;
the second electrode is arranged on one surface of the second semiconductor layer, which is deviated from the first semiconductor layer.
12. The display module according to claim 11, wherein a longitudinal projection of the second electrode does not exceed an edge of the second semiconductor layer.
13. The display module according to claim 11, wherein a portion of the first semiconductor layer not covered by the longitudinal projection of the second semiconductor layer is located at an edge or inside of the first semiconductor layer.
14. The display module according to claim 13, wherein a portion of the first semiconductor layer not covered by the longitudinal projection of the second semiconductor layer is located at an edge of the first semiconductor layer.
15. The display module of claim 14, wherein the first semiconductor layer, the active layer, and the second semiconductor layer collectively form a Mesa step.
16. The display module of claim 15, wherein the Mesa step has a slope of 40 to 90 degrees.
17. The display module according to claim 13, wherein a portion of the first semiconductor layer not covered by the longitudinal projection of the second semiconductor layer is located inside the first semiconductor layer, and the light emitting unit further comprises a hole penetrating the active layer and the second semiconductor layer from the first semiconductor layer.
18. The display module of claim 17, wherein the first electrode is disposed within the aperture.
19. The display module of claim 18, wherein the first electrode and the sidewall of the hole are filled with an insulating material.
20. The display module of claim 17, wherein the sidewalls of the holes are perpendicular or oblique to the bottom surface.
21. The display module of claim 20, wherein the area of the first electrode on the side close to the backlight surface is larger than the area of the first electrode on the side far from the backlight surface.
22. The display module of claim 21, wherein a cross section of the first electrode along a light emitting direction of the light emitting unit is a trapezoid, and an upper base of the trapezoid is close to the light emitting surface.
23. The display module according to any one of claims 1 to 22, wherein a light conversion layer is further disposed on the light emitting surface.
24. The display module of claim 23, wherein the light conversion layer comprises at least a light conversion material and a dispersion medium of the light conversion material.
25. A display panel comprising the display module according to any one of claims 1 to 24.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371393.2A CN113707648A (en) | 2020-05-06 | 2020-05-06 | Display module and display panel |
| PCT/CN2021/089514 WO2021223608A1 (en) | 2020-05-06 | 2021-04-25 | Display module and display panel |
| TW110116347A TWI792298B (en) | 2020-05-06 | 2021-05-06 | Display module and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010371393.2A CN113707648A (en) | 2020-05-06 | 2020-05-06 | Display module and display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113707648A true CN113707648A (en) | 2021-11-26 |
Family
ID=78467811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010371393.2A Pending CN113707648A (en) | 2020-05-06 | 2020-05-06 | Display module and display panel |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN113707648A (en) |
| TW (1) | TWI792298B (en) |
| WO (1) | WO2021223608A1 (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101926361B1 (en) * | 2012-06-13 | 2018-12-07 | 삼성전자주식회사 | Semiconductor Light Emitting Device, Light Emitting Apparatus and Manufacturing Method of the Semconductor Light Emitting Device |
| KR101978968B1 (en) * | 2012-08-14 | 2019-05-16 | 삼성전자주식회사 | Semiconductor light emitting device and light emitting apparatus |
| JP2017157724A (en) * | 2016-03-02 | 2017-09-07 | デクセリアルズ株式会社 | Display apparatus and manufacturing method of the same, light emitting apparatus, and manufacturing method of the same |
| WO2018056477A1 (en) * | 2016-09-22 | 2018-03-29 | 엘지전자 주식회사 | Display apparatus using semiconductor light emitting device and manufacturing method therefor |
| KR102419272B1 (en) * | 2017-12-19 | 2022-07-11 | 엘지디스플레이 주식회사 | Light emitting sound device, sound output device and display device |
| US10756073B2 (en) * | 2018-02-13 | 2020-08-25 | Lumens Co., Ltd. | Micro LED module with flexible multilayer circuit substrate |
| CN109545162A (en) * | 2018-12-29 | 2019-03-29 | 上海中航光电子有限公司 | Array substrate and its driving method, display panel and display device |
| CN109904295B (en) * | 2019-03-21 | 2020-06-09 | 京东方科技集团股份有限公司 | LED device, manufacturing method thereof and display panel |
| CN109887950A (en) * | 2019-04-19 | 2019-06-14 | 京东方科技集团股份有限公司 | Display base plate, LED component, display panel, display device and production method |
| CN114725081A (en) * | 2019-09-30 | 2022-07-08 | 京东方科技集团股份有限公司 | Backlight source display method and device |
| CN110707191B (en) * | 2019-10-22 | 2021-11-16 | 錼创显示科技股份有限公司 | Micro light-emitting diode crystal grain and micro light-emitting diode wafer |
| CN212230428U (en) * | 2020-05-06 | 2020-12-25 | 北京芯海视界三维科技有限公司 | Display module and display panel |
-
2020
- 2020-05-06 CN CN202010371393.2A patent/CN113707648A/en active Pending
-
2021
- 2021-04-25 WO PCT/CN2021/089514 patent/WO2021223608A1/en active Application Filing
- 2021-05-06 TW TW110116347A patent/TWI792298B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| TWI792298B (en) | 2023-02-11 |
| TW202143470A (en) | 2021-11-16 |
| WO2021223608A1 (en) | 2021-11-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110892530B (en) | Integrated optical system | |
| CN109075119B (en) | Integrated device manufacturing method | |
| US20230170338A1 (en) | Circuit and system integration onto a microdevice substrate | |
| KR102227085B1 (en) | Display device using semiconductor light emitting device | |
| US20120256814A1 (en) | Pixel chip, display panel, lighting panel, display unit, and lighting unit | |
| US20210183957A1 (en) | Display panel, preparation method thereof and display device | |
| CN111627382B (en) | Spliced display screen and display device | |
| CN212625559U (en) | Terminal connection structure, display unit and display | |
| CN111722744A (en) | Display device | |
| CN212587494U (en) | Terminal connection structure, display unit and display | |
| CN212625558U (en) | Terminal connection structure, display unit and display | |
| CN212230428U (en) | Display module and display panel | |
| CN112713166B (en) | Display panel, electronic equipment and manufacturing method of display panel | |
| CN113707648A (en) | Display module and display panel | |
| CN113272881A (en) | Display panel, spliced display panel and preparation method thereof | |
| CN212624640U (en) | Light-emitting module, display screen and display | |
| TW201911603A (en) | Micro device integration into system substrate | |
| CN113496972A (en) | Terminal connection structure, display unit and display | |
| CN109767692B (en) | Display panel | |
| CN113496971A (en) | Terminal connection structure, display unit and display | |
| CN115210881A (en) | Display panel and display device | |
| CN112416187B (en) | Touch display device | |
| EP4156154A1 (en) | Light-emitting module, display module, display screen, and display | |
| EP4191568A1 (en) | Light-emitting module and display device | |
| US20220261106A1 (en) | Display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |