CN219087718U - Display module and display panel - Google Patents
Display module and display panel Download PDFInfo
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- CN219087718U CN219087718U CN202222793061.0U CN202222793061U CN219087718U CN 219087718 U CN219087718 U CN 219087718U CN 202222793061 U CN202222793061 U CN 202222793061U CN 219087718 U CN219087718 U CN 219087718U
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Abstract
The application discloses a display module and a display panel, wherein the display module comprises a substrate, a plurality of pixel circuits and a driving circuit, wherein the area where the pixel circuits are positioned is divided into a first area and at least one second area, and at least one side of the first area is provided with the second area; the projection of the first light-emitting electrode on the substrate is overlapped with the projection of the pixel circuit positioned in the first area on the substrate; the projection of one part of the second light-emitting electrode on the substrate is overlapped with the projection of the pixel circuit positioned in the second area on the substrate, and the projection of the other part of the second light-emitting electrode on the substrate is at least partially overlapped with the projection of the driving circuit on the substrate. Based on the mode, the frame width of the display panel can be reduced, and the display effect of the display panel is improved.
Description
Technical Field
The application relates to the technical field of display, in particular to a display module and a display panel.
Background
In the prior art, a display module in a display panel generally includes a substrate, a driving circuit and pixels disposed on the substrate, and a single pixel includes a pixel circuit and a light emitting electrode correspondingly controlled, where a projection of the light emitting electrode on the substrate generally overlaps a projection of the pixel circuit on the substrate.
The prior art has the disadvantage that the driving circuit needs to be arranged on the same layer as the pixel circuit to drive the pixel circuit, and a non-display area with a certain area exists on one side surface of the display panel corresponding to the display area due to the arrangement of the driving circuit, and the non-display area is commonly called as a frame of the display panel, commonly called as a display black frame, and the frame width of the existing display panel is larger.
Disclosure of Invention
The technical problem that this application mainly solves is how to reduce display panel's frame width, improves display panel's display effect.
In order to solve the technical problem, a first technical scheme adopted in the application is as follows: the display module comprises a substrate, a plurality of pixel circuits and a driving circuit, wherein the pixel circuits and the driving circuit are arranged on the substrate, the driving circuit is used for sending gate driving signals and/or source driving signals to the pixel circuits, the area where the pixel circuits are arranged is divided into a first area and at least one second area, and at least one side of the first area is provided with the second area; the light-emitting electrode corresponding to the pixel circuit in the first area is used as a first light-emitting electrode, and the light-emitting electrode corresponding to the pixel circuit in the second area is used as a second light-emitting electrode; the projection of the first light-emitting electrode on the substrate is overlapped with the projection of the pixel circuit positioned in the first area on the substrate; the projection of one part of the second light-emitting electrode on the substrate is overlapped with the projection of the pixel circuit positioned in the second area on the substrate, and the projection of the other part of the second light-emitting electrode on the substrate is at least partially overlapped with the projection of the driving circuit on the substrate.
Wherein, two opposite sides of the first area are respectively provided with a second area, and the driving circuit comprises a grid driving circuit; the projection of the other part of the second light-emitting electrode on the substrate is at least partially overlapped with the projection of the grid driving circuit on the substrate.
Wherein all the second regions are arranged around the first region, and the driving circuit comprises a gate driving circuit and a source driving circuit; the projection of the other part of the second light-emitting electrode on the substrate is at least partially overlapped with the projection of the gate driving circuit on the substrate, and the projection of the other part of the second light-emitting electrode on the substrate is at least partially overlapped with the projection of the source driving circuit on the substrate.
Wherein, the distribution density corresponding to the first light-emitting electrode is greater than the distribution density corresponding to the second light-emitting electrode.
The pixel circuits comprise a first pixel circuit, a second pixel circuit and a third pixel circuit, wherein the light-emitting electrode corresponding to the first pixel circuit is used for emitting first color light, the light-emitting electrode corresponding to the second pixel circuit is used for emitting second color light, and the light-emitting electrode corresponding to the third pixel circuit is used for emitting third color light; the second light-emitting electrodes which are at least partially corresponding to the pixel circuits in the same second region and used for emitting the same color light share an anode layer, and the second light-emitting electrodes further comprise a hole transport layer, a light-emitting layer, an electron transport layer and a cathode layer.
Wherein, the projection of the other part of the second light-emitting electrodes on the substrate is overlapped with the projection of the driving circuit on the substrate.
The pixel circuit comprises a GATE terminal and a DATA terminal; the GATE terminal is connected to the driving circuit to receive the corresponding GATE driving signal, and the DATA terminal is connected to the driving circuit to receive the corresponding GATE driving signal.
Wherein the area of the first region is larger than the area of the second region.
The ratio between the area of the first area and the area of the second area is greater than a first preset ratio threshold, and/or the ratio between the distribution density corresponding to the first light-emitting electrode and the distribution density corresponding to the second light-emitting electrode is greater than a second preset ratio threshold.
In order to solve the technical problem, a second technical scheme adopted by the application is as follows: a display panel comprises a power supply module and the display module.
The beneficial effects of this application lie in: in the technical scheme, the area where the pixel circuits are located is divided into the first area and at least one second area, so that the projection of the light-emitting electrode connected with the pixel circuits in the first area on the substrate is at least partially overlapped with the projection of the driving circuit on the substrate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a display module of the present application;
FIG. 2 is a second schematic structural diagram of an embodiment of a display module according to the present application;
FIG. 3 is a schematic cross-sectional view of an embodiment of a display module of the present application;
fig. 4 is a schematic structural diagram of an embodiment of a display panel of the present application.
The reference numerals are: the display device includes a substrate 11, a plurality of pixel circuits 12, a first region 121, a second region 122, a driving circuit 13, a first light-emitting electrode 141, an anode layer 1411, a hole transport layer 1412, a light-emitting layer 1413, an electron transport layer 1414, a cathode layer 1415, a second light-emitting electrode 142, an anode layer 1421, a hole transport layer 1422, a light-emitting layer 1423, an electron transport layer 1424, a cathode layer 1425, a power module 21, and a display module 22.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present application are shown in the drawings. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
The terms "first," "second," "third," and the like in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", and "a third" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise. All directional indications (such as up, down, left, right, front, back … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture changes, the directional indication changes accordingly. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The present application firstly proposes a display module, referring to fig. 1 and fig. 2, fig. 1 is one of the schematic structural diagrams of an embodiment of the display module of the present application, and fig. 2 is the second schematic structural diagram of an embodiment of the display module of the present application, as shown in fig. 1 and fig. 2, the display module includes a substrate 11, a plurality of pixel circuits 12 and a driving circuit 13.
A plurality of pixel circuits 12 and a driving circuit 13 are each provided on the substrate 11. Specifically, the arrangement manner of the plurality of pixel circuits 12 may be an array arrangement, or may be other arrangements, which are not limited herein, and in addition, the plurality of pixel circuits 12 may also refer to all pixel circuits 12 in a pixel circuit layer that is built up in one process.
The driving circuit 13 is configured to send a gate driving signal and/or a source driving signal to the pixel circuits 12, and an area where the plurality of pixel circuits 12 are located is divided into a first area 121 and at least one second area 122, where at least one side of the first area 121 has the second area 122. Specifically, as shown in fig. 1, opposite sides (e.g., left and right sides) of the first region 121 in the example are respectively provided with a second region 122.
The light-emitting electrode corresponding to the pixel circuit 12 located in the first region 121 is referred to as a first light-emitting electrode 141, and the light-emitting electrode corresponding to the pixel circuit 12 located in the second region 122 is referred to as a second light-emitting electrode 142.
The projection of the first light emitting electrode 141 on the substrate 11 overlaps the projection of the pixel circuit 12 located in the first region 121 on the substrate 11. Specifically, the projection of the first light emitting electrode 141 on the substrate 11 covers the projection of the pixel circuit 12 located in the first region 121 on the substrate 11, that is, the pixel circuit 12 in the first region 121, in the lamination direction of the light emitting electrodes of which connection control is located, which refers to the lamination direction of the substrate 11 and the plurality of pixel circuits 12 or the driving circuit 13 on the display panel.
A portion of the projection of the second light-emitting electrode 142 on the substrate 11 overlaps with the projection of the pixel circuit 12 located in the second region 122 on the substrate 11, and another portion of the projection of the second light-emitting electrode 142 on the substrate 11 overlaps with the projection of the driving circuit 13 on the substrate 11 at least partially. Specifically, as shown in fig. 1 and fig. 2, in combination with the two figures, a part of the second light-emitting electrodes 142 are located in the stacking direction of the light-emitting electrodes controlled by connection of the second light-emitting electrodes, and the other part of the second light-emitting electrodes 142 are located in the stacking direction of at least part of the driving circuits 13, so that at least part of the light-emitting electrodes exist in the stacking direction of the driving circuits 13.
The at least partial driving circuit 13 may be a partial driving circuit 13 or may be all driving circuits 13, and is not limited herein. The driving circuit 13 may be a GDL (gate driver less) driving circuit, or may be another type of driving circuit, which is not limited herein.
Specifically, the PPI corresponding to the first light emitting electrode 141 may be 100-200PPI, while the PPI corresponding to the second light emitting electrode 142 may be 300-500PPI, which is only an example herein, and may be other PPI collocations, which are not limited herein.
In the technical scheme, the area where the pixel circuits are located is divided into the first area and at least one second area, so that the projection of the light-emitting electrode connected with the pixel circuits in the first area on the substrate is at least partially overlapped with the projection of the driving circuit on the substrate.
In one embodiment, as shown in fig. 1 and 2, two opposite sides of the first region 121 are respectively provided with a second region 122, and the driving circuit 13 includes a gate driving circuit.
The projection of the other part of the second light emitting electrode 142 on the substrate 11 at least partially overlaps with the projection of the gate driving circuit on the substrate 11.
Specifically, as shown in fig. 1, a second region is provided on opposite sides of the first region 121, respectively.
A projection of a part of the second light-emitting electrode 142 on the substrate 11 overlaps a projection of the pixel circuit 12 located in the second region 122 on the substrate 11, that is, a part of the second light-emitting electrode 142 is located in a lamination direction of the light-emitting electrodes of which connection control is performed.
The projection of the other part of the second light emitting electrode 142 on the substrate 11 at least partially overlaps with the projection of the gate driving circuit on the substrate 11, that is, the other part of the second light emitting electrode 142 is located in the lamination direction of at least part of the gate driving circuit.
By disposing a part of the second light emitting electrodes 142 in the lamination direction of at least a part of the gate driving circuits, the region of the display panel corresponding to at least a part of the gate driving circuits is not a black side where the screen display is impossible, but a part of the display region where the screen display is possible.
In an embodiment, all of the second regions 122 are disposed around the first region 121, and the driving circuit 13 includes a gate driving circuit and a source driving circuit.
The projection of the other part of the second light emitting electrode 142 on the substrate 11 at least partially overlaps with the projection of the gate driving circuit on the substrate 11, and the projection of the other part of the second light emitting electrode 142 on the substrate 11 at least partially overlaps with the projection of the source driving circuit on the substrate 11.
Specifically, one second region 122 is provided on each side of the first region 121, for example, one second region 122 is provided on each of the upper side, the lower side, the left side, and the right side of the first region 121.
A projection of a part of the second light-emitting electrode 142 on the substrate 11 overlaps a projection of the pixel circuit 12 located in the second region 122 on the substrate 11, that is, a part of the second light-emitting electrode 142 is located in a lamination direction of the light-emitting electrodes of which connection control is performed.
The projection of the first part of the further part of the second light emitting electrode 142 onto the substrate 11 at least partially overlaps the projection of the gate driving circuit onto the substrate 11, i.e. the first part of the further part of the second light emitting electrode 142 is located in the stacking direction of at least part of the gate driving circuit.
The projection of the second part of the further part of the second light emitting electrode 142 onto the substrate 11 at least partially overlaps the projection of the source driving circuit onto the substrate 11, i.e. the second part of the further part of the second light emitting electrode 142 is located in the stacking direction of at least part of the source driving circuit.
By disposing a part of the second light emitting electrode 142 in the lamination direction of at least a part of the gate driving circuit and the source driving circuit, the region of the display panel corresponding to at least a part of the gate driving circuit and at least a part of the source driving circuit is not a black side where the screen display is impossible, but a part of the display region where the screen display is possible.
In an embodiment, the distribution density corresponding to the first light emitting electrode 141 is greater than the distribution density corresponding to the second light emitting electrode 142. Specifically, the distribution density of the first light emitting electrodes 141 or the corresponding PPI (pixel density) on the display panel is greater than the distribution density of the second light emitting electrodes 142 or the corresponding PPI on the display panel.
Based on the above manner, the number of the pixel circuits 12 to be arranged in the second light emitting electrode 142 in the same area can be reduced relative to the first light emitting electrode 141 in the same area, so that a sufficient space for the driving circuit to be arranged can be reserved at the position corresponding to the second light emitting electrode 142 in the layer where the pixel circuits 12 are located, thereby achieving the display effect of the improved display panel.
In one embodiment, the plurality of pixel circuits 12 includes a first pixel circuit, a second pixel circuit, and a third pixel circuit, where the light-emitting electrode corresponding to the first pixel circuit is used for emitting the first color light, the light-emitting electrode corresponding to the second pixel circuit is used for emitting the second color light, and the light-emitting electrode corresponding to the third pixel circuit is used for emitting the third color light.
The second light-emitting electrodes 142 for emitting the same color light at least partially corresponding to the pixel circuits 12 in the same second region 122 share an anode layer 1421, and the second light-emitting electrodes 142 further include a hole-transporting layer 1422, a light-emitting layer 1423, an electron-transporting layer 1424, and a cathode layer 1425.
Specifically, as shown in fig. 3, a is a driving circuit 13, B is a pixel circuit 12 located in the second region 122, c is a pixel circuit 12 located in the first region 121, and as can be seen from this figure, light emitting electrodes (such as LED chips) composed of an anode layer 1421, a hole transporting layer 1422, a light emitting layer 1423, an electron transporting layer 1424, and a cathode layer 1425 located in the stacking direction of a and B share the same anode layer 1421, and each light emitting electrode sharing the same anode layer 1421 is controlled by a corresponding pixel circuit 12 located in the second region 122, respectively.
The light emitting electrodes sharing the same anode layer 1421 emit light in the same color, and further, the distance between any two light emitting electrodes sharing the same anode layer 1421 is not greater than a preset distance threshold. All of the second light-emitting electrodes 142 may have a plurality of groups of light-emitting electrodes, each group of light-emitting electrodes sharing an anode layer 1421, and the light-emitting electrodes in each group of light-emitting electrodes are used for emitting light of the same color.
In addition, the first light emitting electrodes 141 are respectively configured with separate anode layers 1411, that is, the first light emitting electrodes 141 include an anode layer 1411, a hole transport layer 1412, a light emitting layer 1413, an electron transport layer 1414, and a cathode layer 1415.
The first color may be red, the second color may be green, the third color may be blue, and the first color, the second color and the third color may be other colors specifically combined, and the types of the second light emitting electrodes 142 emitting different colors may be increased or decreased, which may be specific according to the actual requirements, and is not limited herein.
Based on the above manner, in the case that all the light emitting electrodes are produced by the same process, without separately producing the second light emitting electrode 142 by a specific process, the number of the pixel circuits 12 to be configured for the second light emitting electrode 142 in the same area is reduced relative to the first light emitting electrode 141 in the same area, so that a sufficient space for setting a driving circuit is reserved at a position corresponding to the second light emitting electrode 142 in the layer where the pixel circuits 12 are located, thereby achieving the above-mentioned improvement of the display effect of the display panel.
In an embodiment, the projection of the other part of the second light emitting electrode 142 on the substrate 11 and the projection of the driving circuit 13 on the substrate 11 are all overlapped.
Specifically, the projection of the other part of the second light emitting electrode 142 on the substrate 11 covers the projection of the driving circuit 13 on the substrate 11, so that the image display can be performed at the area corresponding to the positions of all the driving circuits 13 on the display panel, so that the black edge generated by the driving circuit 13 is completely removed, the frame width of the display panel is reduced to the minimum, the display panel can perform the frame-free or near frame-free image display, and the display effect of the display panel is improved.
In one embodiment, each pixel circuit 12 includes a GATE terminal and a DATA terminal.
The GATE terminal is connected to the driving circuit 13 to receive the corresponding GATE driving signal, and the DATA terminal is connected to the driving circuit 13 to receive the corresponding GATE driving signal.
In one embodiment, the area of the first region 121 is larger than the area of the second region 122.
Further, a ratio between the area of the first region 121 and the area of the second region 122 is greater than a first preset ratio threshold, and/or a ratio between the distribution density corresponding to the first light emitting electrode 141 and the distribution density corresponding to the second light emitting electrode 142 is greater than a second preset ratio threshold.
Specifically, the first preset ratio threshold may be 5:1, or may be another ratio value, which is not limited herein, and the second preset ratio threshold may be 3:1, or may be another ratio value, which is not limited herein.
In one embodiment, each pixel circuit 12 includes a VDD terminal and the cathode terminal of each light emitting electrode is a VSS terminal.
The substrate 11 is further provided with a power supply voltage supply circuit and a ground voltage supply circuit, wherein the output ends of the power supply voltage supply circuit can be distributed on at least two sides of the area where the plurality of pixel circuits 12 are located, and the output ends of the ground voltage supply circuit can be distributed on at least two sides of the area where the plurality of pixel circuits 12 are located.
The VDD terminal is connected to the output terminal of the power supply voltage supply circuit to receive the corresponding power supply voltage signal (VDD), and the VSS terminal is connected to the output terminal of the ground voltage supply circuit to receive the corresponding ground voltage signal (VSS).
The present application further provides a display panel, referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of the display panel of the present application, as shown in fig. 4, the display panel includes a power module 21 and a display module 22, and the display module 22 may be the display module described in any one of the foregoing embodiments, which is not described herein again.
In the technical scheme, the area where the pixel circuits are located is divided into the first area and at least one second area, so that the projection of the light-emitting electrode connected with the pixel circuits in the first area on the substrate is at least partially overlapped with the projection of the driving circuit on the substrate.
The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the contents of the present application or other related technical fields are included in the scope of the patent application.
Claims (10)
1. The display module is characterized by comprising a substrate, a plurality of pixel circuits and a driving circuit, wherein the pixel circuits and the driving circuit are arranged on the substrate, the driving circuit is used for sending gate driving signals and/or source driving signals to the pixel circuits, the area where the pixel circuits are arranged is divided into a first area and at least one second area, and at least one side of the first area is provided with the second area;
the light-emitting electrode corresponding to the pixel circuit in the first area is used as a first light-emitting electrode, and the light-emitting electrode corresponding to the pixel circuit in the second area is used as a second light-emitting electrode;
the projection of the first light-emitting electrode on the substrate is overlapped with the projection of the pixel circuit positioned in the first area on the substrate; a part of the projection of the second light-emitting electrode on the substrate is overlapped with the projection of the pixel circuit positioned in the second area on the substrate, and the other part of the projection of the second light-emitting electrode on the substrate is at least partially overlapped with the projection of the driving circuit on the substrate.
2. The display module of claim 1, wherein the second regions are disposed on opposite sides of the first region, and the driving circuit comprises a gate driving circuit;
the projection of the other part of the second light-emitting electrode on the substrate at least partially overlaps with the projection of the gate driving circuit on the substrate.
3. The display module of claim 1, wherein all of the second regions are disposed around the first region, the driving circuit including a gate driving circuit and a source driving circuit;
the projection of the other part of the second light-emitting electrode on the substrate at least partially overlaps with the projection of the gate driving circuit on the substrate, and the projection of the other part of the second light-emitting electrode on the substrate at least partially overlaps with the projection of the source driving circuit on the substrate.
4. A display module according to any one of claims 1 to 3, wherein the first light emitting electrode has a distribution density greater than that of the second light emitting electrode.
5. A display module according to any one of claims 1 to 3, wherein the plurality of pixel circuits includes a first pixel circuit, a second pixel circuit, and a third pixel circuit, the light-emitting electrode corresponding to the first pixel circuit is configured to emit a first color light, the light-emitting electrode corresponding to the second pixel circuit is configured to emit a second color light, and the light-emitting electrode corresponding to the third pixel circuit is configured to emit a third color light;
the second light-emitting electrodes which are at least partially corresponding to the pixel circuits in the same second region and used for emitting the same color light share an anode layer, and the second light-emitting electrodes further comprise a hole transport layer, a light-emitting layer, an electron transport layer and a cathode layer.
6. A display module according to any one of claims 1 to 3, wherein the projection of the further part of the second light-emitting electrode onto the substrate and the projection of the driving circuit onto the substrate all overlap.
7. A display module according to any one of claims 1 to 3, wherein the pixel circuit includes a GATE terminal and a DATA terminal;
the GATE terminal is connected to the driving circuit to receive the corresponding GATE driving signal, and the DATA terminal is connected to the driving circuit to receive the corresponding GATE driving signal.
8. A display module according to any one of claims 1 to 3, wherein the area of the first region is larger than the area of the second region.
9. The display module of claim 8, wherein a ratio between an area of the first region and an area of the second region is greater than a first preset ratio threshold, and/or a ratio between a distribution density corresponding to the first light emitting electrode and a distribution density corresponding to the second light emitting electrode is greater than a second preset ratio threshold.
10. A display panel comprising a power module and a display module according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222793061.0U CN219087718U (en) | 2022-10-21 | 2022-10-21 | Display module and display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222793061.0U CN219087718U (en) | 2022-10-21 | 2022-10-21 | Display module and display panel |
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| CN219087718U true CN219087718U (en) | 2023-05-26 |
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| CN202222793061.0U Active CN219087718U (en) | 2022-10-21 | 2022-10-21 | Display module and display panel |
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