Display substrate and display device

By designing the first sub-pixel unit and the second sub-pixel unit on the LED display panel to share the light-out area, and combining the light-transmitting film layer and the reflective layer, the problem of insufficient number of pixels per unit area is solved, and a higher resolution and display effect is achieved.

CN114388555BActive Publication Date: 2025-07-22CHONGQING HKC OPTOELECTRONICS TECH CO LTD +1
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Patent Information

Application Number
CN202111566716.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2021-12-20
Publication Date
2025-07-22
Estimated Expiration
2041-12-20

AI Technical Summary

Technical Problem

The number of pixels in unit size on the existing LED display panel is small, which affects the display effect.

Method used

A display substrate design is adopted, wherein each pixel unit includes a first sub-pixel unit and a second sub-pixel unit, the second sub-pixel unit is arranged away from the substrate relative to the first sub-pixel unit, and shares the same light outgoing area, combining a light-transmissive film layer and a reflective layer to optimize light utilization.

Benefits of technology

The number of pixel units per unit area on the substrate is increased, the resolution of the display substrate is increased, and the display effect is improved.

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Abstract

The present application discloses a display substrate and a display device. The display substrate includes a substrate and a plurality of pixel units arranged in an array on the substrate. Each pixel unit includes a first sub-pixel unit and a second sub-pixel unit. The first sub-pixel unit and the second sub-pixel unit emit light of different colors respectively. The second sub-pixel is arranged farther from the substrate than the first sub-pixel, and the first sub-pixel and the second sub-pixel share the same light-emitting area. Through the above solution, the arrangement number of pixel units per unit area on the substrate can be increased, and the resolution of the display substrate can be improved.
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Description

Technical Field

[0001] This application belongs to the field of display technology, and particularly relates to a display substrate and a display device. Background Art

[0002] Compared with the existing liquid crystal panels based on liquid crystal display technology, the LED (light-emitting diode) display panel based on semiconductor materials has the characteristics of high brightness, long life, low energy consumption, fast response speed, etc., and is a strong competitor for the next-generation new display technology.

[0003] The existing LED display panels are usually formed by mounting multiple LED light-emitting chip arrays on a substrate. Since the size of the LED light-emitting chips is relatively large, the number of pixels per unit size on the formed LED display panel is small, thus affecting the display effect of the LED display panel. Summary of the Invention

[0004] This application provides a display substrate and a display device to solve the problem that the number of pixels per unit size on the existing LED display panel is small, thus affecting the display effect of the LED display panel.

[0005] To solve the above technical problem, a technical solution adopted in this application is: to provide a display substrate, including a substrate and a plurality of pixel units arranged in an array on the substrate. Each pixel unit includes a first sub-pixel unit and a second sub-pixel unit. The first sub-pixel unit and the second sub-pixel unit emit different colors of light respectively. The second sub-pixel is arranged farther from the substrate than the first sub-pixel, and the first sub-pixel and the second sub-pixel share the same light-emitting area.

[0006] Optionally, the first sub-pixel unit and the second sub-pixel unit are stacked on one side in a direction away from the substrate.

[0007] Optionally, each pixel unit further includes a third sub-pixel unit. The first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit emit different colors of light respectively;

[0008] The third sub-pixel unit is arranged on a side of the second sub-pixel unit away from the first sub-pixel unit; or, the third sub-pixel unit is attached to the substrate and arranged at an interval from the first sub-pixel unit.

[0009] Optionally, the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit are a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode respectively.

[0010] Optionally, a first light-transmitting film layer is disposed between the first sub-pixel unit and the second sub-pixel unit;

[0011] The first light-transmitting film layer is configured to allow light emitted by the first sub-pixel unit to pass through, and not to allow light emitted by the second sub-pixel unit and the third sub-pixel unit to pass through.

[0012] Optionally, at least one of the first sub-pixel unit and the second sub-pixel unit is arranged obliquely with respect to the substrate.

[0013] Optionally, each of the pixel units further includes a third sub-pixel unit, and the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit respectively emit light of different colors;

[0014] The first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit are fixedly connected in sequence, and the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit are all arranged obliquely with respect to the substrate.

[0015] Optionally, the center lines of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit are collinear, and an inclination angle between the center lines of the first sub-pixel unit, the second sub-pixel unit and the third sub-pixel unit and the substrate is 0-90 degrees.

[0016] Optionally, a plurality of mounting grooves arranged in an array are provided on the substrate, and a plurality of the pixel units are respectively installed in the mounting grooves, wherein a reflective layer is provided on the inner wall of the mounting groove, and the reflective layer is used to reflect the light emitted by the pixel unit out of the mounting groove.

[0017] In order to solve the above technical problems, a technical solution adopted in the present application is: providing a display device, comprising a packaging cover plate and a display substrate, wherein the display substrate is the display substrate described above;

[0018] The packaging cover is disposed on a side of the pixel unit away from the substrate.

[0019] The beneficial effects of the present application are as follows: In the solution of the present application, by disposing the second sub-pixel unit away from the substrate relative to the first sub-pixel unit, and by sharing the same light-emitting area between the first sub-pixel unit and the second sub-pixel unit (that is, enabling the light emitted by the first sub-pixel unit and the second sub-pixel unit to be emitted from the same light-emitting area), the projected area of the first sub-pixel unit and the second sub-pixel unit on the substrate can be reduced, so that the projected area of each pixel unit on the substrate can be reduced, that is, the installation area occupied by the projected area on the substrate can be reduced. Therefore, the number of pixel units per unit area on the substrate can be increased, the resolution of the display substrate can be improved, and the display effect can be enhanced. Description of the Drawings

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings, where:

[0021] Figure 1 is a schematic structural diagram of an embodiment of a display substrate provided by the present application;

[0022] Figure 2 is Figure 1 a cross-sectional view of the shown embodiment of the display substrate taken along the A-A' section;

[0023] Figure 3 is Figure 1 a cross-sectional view of another embodiment of the shown display substrate taken along the A-A' section;

[0024] Figure 4 is Figure 1 a cross-sectional view of another embodiment of the shown display substrate taken along the A-A' section;

[0025] Figure 5 is a schematic structural diagram of another embodiment of a display substrate provided by the present application;

[0026] Figure 6 is Figure 5 a cross-sectional view of the shown embodiment of the display substrate taken along the B-B' section;

[0027] Figure 7 is Figure 5 a cross-sectional view of another embodiment of the shown display substrate taken along the B-B' section

[0028] Figure 8 is Figure 5 a cross-sectional view of another embodiment of the shown display substrate taken along the B-B' section;

[0029] Figure 9 is Figure 5 The cross-sectional view of another embodiment of the display substrate shown in the B-B' section

[0030] Figure 10 is a schematic structural diagram of an embodiment of a display device provided by the present application.

[0031] Display substrates - 10, 20, 320; Light-emitting regions - 101, 201; Substrates - 110, 210, 321; Pixel units - 120, 220, 322; First sub-pixel units - 121, 221; Second sub-pixel units - 122, 222; Third sub-pixel units - 123, 223; Reflective film layer - 130; First light-transmitting film layer - 140; Second light-transmitting film layer - 150; Mounting grooves - 230; Reflective layer - 231; Display device - 30; Encapsulation cover plate - 310; Light homogenizing film layer - 330. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0033] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present application, then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If this specific posture changes, then the directional indications will also change accordingly.

[0034] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, then the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0035] Please refer to Figure 1 - Figure 2 . Figure 1 is a schematic structural diagram of an embodiment of a display substrate provided by the present application; Figure 2 is Figure 1The cross-sectional view of an embodiment of the display substrate shown in the A-A' section.

[0036] The display substrate 10 includes a substrate 110 and a plurality of pixel units 120 arranged in an array on the substrate 110. Each pixel unit 120 includes a first sub-pixel unit 121 and a second sub-pixel unit 122. The first sub-pixel unit 121 and the second sub-pixel unit 122 emit lights of different colors respectively. The second sub-pixel unit 122 is arranged farther from the substrate 110 than the first sub-pixel unit 121, and the first sub-pixel unit 121 and the second sub-pixel unit 122 share the same light-emitting area.

[0037] Wherein, the side of the pixel unit 120 away from the substrate 110 is the light-emitting side. An light-emitting area 101 can be formed in the light-emitting layer of each pixel unit 120. The fact that the first sub-pixel unit 121 and the second sub-pixel unit 122 share the same light-emitting area can be expressed as that the lights emitted by the first sub-pixel unit 121 and the second sub-pixel unit 122 can be at least partially superimposed within the light-emitting area 101.

[0038] Therefore, in this embodiment, by arranging the second sub-pixel unit 122 farther from the substrate 110 than the first sub-pixel unit 121, and by sharing the same light-emitting area by the first sub-pixel unit 121 and the second sub-pixel unit 122 (that is, enabling the lights emitted by the first sub-pixel unit 121 and the second sub-pixel unit 122 to be emitted from the same light-emitting area 101), the projected area of the first sub-pixel unit 121 and the second sub-pixel unit 122 on the substrate 110 can be reduced, so that the projected area of each pixel unit 120 on the substrate 110, that is, the installation area occupied by the projected area on the substrate 110 on the substrate 110 can be reduced. Therefore, the number of pixel units 120 per unit area on the substrate 110 can be increased, the resolution of the display substrate 10 can be improved, and the display effect can be improved.

[0039] In this embodiment, the first sub-pixel unit 121 and the second sub-pixel unit 122 have two setting modes: stacked type and inclined type.

[0040] Each pixel unit 120 further includes a third sub-pixel unit 123. The first sub-pixel unit 121, the second sub-pixel unit 122, and the third sub-pixel unit 123 emit lights of different colors respectively.

[0041] Optionally, the first sub-pixel unit 121, the second sub-pixel unit 122, and the third sub-pixel unit 123 can be a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode respectively.

[0042] The first sub-pixel unit 121 and the second sub-pixel unit 122 can be any two of a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode, and the third sub-pixel unit 123 can be the remaining one of the three.

[0043] The light emitted by the first sub-pixel unit 121, the second sub-pixel unit 122, and the third sub-pixel unit 123 can be mixed to form white light.

[0044] Please refer to Figure 3 , Figure 3 is Figure 1 a cross-sectional view of another embodiment of the display substrate shown in the A-A' section.

[0045] Among them, the first sub-pixel unit 121 and the second sub-pixel unit 122 are arranged in a stacked manner.

[0046] Among them, the first sub-pixel unit 121 is attached to the substrate 110, and the second sub-pixel unit 122 can be stacked on the side of the first sub-pixel unit 121 facing away from the substrate.

[0047] Among them, the light emitted by the first sub-pixel unit 121 can penetrate the second sub-pixel unit 122 and be emitted upward to the light-emitting area 101. Similarly, the light emitted by the second sub-pixel unit 122 can also be emitted from the same light-emitting area 101 as the second sub-pixel unit 122.

[0048] The third sub-pixel unit 123 can be attached to the substrate 110 together with the first sub-pixel unit 121, and the third sub-pixel unit 123 can be arranged at intervals with the first sub-pixel unit 121.

[0049] In this embodiment, by stacking the second sub-pixel unit 122 on the side of the first sub-pixel unit 121 facing away from the substrate 110, the setting space of the second sub-pixel unit 122 on the substrate 110 can be reduced, so that the setting space of the entire pixel unit 120 can be reduced, and further the number of pixel units 120 set per unit area of the substrate 110 can be increased, thereby improving the resolution of the display substrate 10.

[0050] Among them, optionally, a reflective film layer 130 can be provided between the first sub-pixel unit 121 and the substrate 110 (and between the third sub-pixel unit 123 and the substrate 110). The reflective film layer 130 can reflect the light emitted by the first sub-pixel unit 121 (or the third sub-pixel unit 123) toward the substrate 110 back, so that the reflected light is emitted toward the light-emitting area 101. This solution can improve the light utilization efficiency.

[0051] Furthermore, please refer to Figure 3 .

[0052] Wherein, a first light-transmitting film layer 140 may be further disposed between the first sub-pixel unit 121 and the second sub-pixel unit 122, and the first light-transmitting film layer 140 is configured to allow the light emitted by the first sub-pixel unit 121 to pass through, and not allow the light emitted by the second sub-pixel unit 122 to pass through.

[0053] In this solution, the light emitted by the first sub-pixel unit 121 can pass through the first light-transmitting film layer 140 and be emitted toward the light-emitting region 101, while the light emitted by the second sub-pixel unit 122 toward the side of the first sub-pixel unit 121 can be blocked by the first light-transmitting film layer 140.

[0054] Wherein, the first light-transmitting film layer 140 may also be configured to reflect the light emitted by the second sub-pixel unit 122, thereby improving the utilization rate of the light emitted by the second sub-pixel unit 122.

[0055] In this embodiment, the outer contour dimensions of the second sub-pixel unit 122 and the first sub-pixel unit 121 may be set to match each other, so that the projections of the second sub-pixel unit 122 and the first sub-pixel unit 121 on the substrate 110 overlap.

[0056] In a more preferred embodiment, the first sub-pixel unit 121 may be a red light-emitting diode, that is, the first sub-pixel unit 121 can emit red light. Since the red light has strong penetration ability, it can ensure that the light emitted by the first sub-pixel unit 121 can penetrate the second sub-pixel unit 122 and be emitted toward the light-emitting region 101, thereby further improving the light utilization rate of the light emitted by the first sub-pixel unit 121.

[0057] Please refer further to Figure 4 , Figure 4 which Figure 1 is a cross-sectional view of another embodiment of the display substrate shown in the A-A' section.

[0058] Wherein, the third sub-pixel unit 123 may be disposed on the side of the second sub-pixel unit 122 away from the first sub-pixel unit 121, that is, the first sub-pixel unit 121, the second sub-pixel unit 122, and the third sub-pixel unit 123 may be stacked in sequence in a direction away from the substrate 110.

[0059] Optionally, the outer dimensions of the first sub-pixel unit 121, the second sub-pixel unit 122, and the third sub-pixel unit 123 are all matched, so that the projections of the three on the substrate 110 overlap.

[0060] In this solution, by stacking both the second sub-pixel unit 122 and the third sub-pixel unit 123 on the first sub-pixel unit 121, the setting space of the second sub-pixel unit 122 and the third sub-pixel unit 123 on the substrate 110 can be saved, so that the size of the pixel unit 120 can be further reduced, and the number of pixel units 120 set per unit area on the substrate 110 can be further increased, thereby further improving the resolution of the display substrate 10 and enhancing the display effect of the display substrate 10.

[0061] In this embodiment, in some embodiments, a second light-transmitting film layer 150 may be further disposed between the second sub-pixel unit 122 and the third sub-pixel unit 123. The second light-transmitting film layer 150 may be configured to allow the light emitted by the first sub-pixel unit 121 and the second sub-pixel unit 122 to pass through, and may block the light emitted by the third sub-pixel unit 123 in the direction of the second sub-pixel unit 122. Preferably, the second light-transmitting film layer 150 may also be configured to reflect the light emitted by the third sub-pixel unit 123, thereby improving the utilization rate of the light emitted by the third sub-pixel unit 123.

[0062] Please refer to Figure 5 and Figure 6 。 Figure 5 FIG. is a schematic structural diagram of another embodiment of a display substrate provided by the present application; Figure 6 is Figure 5 a cross-sectional view of the display substrate shown in an embodiment along the B-B' section.

[0063] Wherein, the display substrate 20 includes a substrate 210 and a plurality of pixel units 220 arranged in an array on the substrate 210. Each pixel unit 220 includes a first sub-pixel unit 221 and a second sub-pixel unit 222. The first sub-pixel unit 221 and the second sub-pixel unit 222 emit light of different colors, and at least one of the first sub-pixel unit 221 and the second sub-pixel unit 222 may be inclined with respect to the substrate 110.

[0064] Therefore, by inclining at least one of the first sub-pixel unit 221 and the second sub-pixel unit 222 with respect to the substrate 210, the projection of the entire pixel unit 220 on the substrate 210 can also be reduced, so that the number of pixel units 220 set per unit area on the substrate 210 can be increased, thereby further improving the resolution of the display substrate 20 and enhancing the display effect of the display substrate 10.

[0065] Similar to the foregoing, each pixel unit 220 further includes a third sub-pixel unit 223. The first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 emit light of different colors.

[0066] Optionally, the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 may be a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode, respectively. The first sub-pixel unit 221 and the second sub-pixel unit 222 may be any two of a red light-emitting diode, a green light-emitting diode, and a blue light-emitting diode, and the third sub-pixel unit 223 may be the remaining one of the three. The light emitted by the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 may be mixed to form white light.

[0067] Therefore, in this embodiment, at least one of the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 may be disposed obliquely with respect to the substrate 210.

[0068] Please refer further to Figure 6 。

[0069] Among them, the second sub-pixel unit 222 is disposed obliquely with respect to the substrate 210, and the first sub-pixel unit 221 and the third sub-pixel unit 223 may be disposed on the substrate 210.

[0070] Please refer to Figure 7 。 Figure 7 is Figure 5 a cross-sectional view of another embodiment of the display substrate shown in the B-B' cross-section.

[0071] Among them, the first sub-pixel unit 221 is fixedly connected to the second sub-pixel unit 222, and both the first sub-pixel unit 221 and the second sub-pixel unit 222 are disposed obliquely with respect to the substrate 210, and the third sub-pixel unit 223 may be disposed on the substrate 210.

[0072] Please refer to Figure 8 。 Figure 8 is Figure 5 a cross-sectional view of another embodiment of the display substrate shown in the B-B' cross-section.

[0073] Among them, the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 are fixedly connected in sequence, and the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 are all disposed obliquely with respect to the substrate 210.

[0074] Optionally, the central connection lines of the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 are collinear, and the inclination angle between the central connection lines of the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 and the substrate 210 is 0 - 90 degrees. That is, the inclination angle between the central connection lines of the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 and the substrate 210 is greater than zero degrees and less than 90 degrees.

[0075] Preferably, the inclination angle between the central connection lines of the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 and the substrate 210 can be 40 - 50 degrees. For example, it can be 40, 45, or 50 degrees.

[0076] Please refer to Figure 9 , Figure 9 is Figure 5 a cross-sectional view of another embodiment of the display substrate shown in the B - B' section.

[0077] Among them, the first sub-pixel unit 221 is attached to the substrate 210, the second sub-pixel unit 222 and the third sub-pixel unit 223 are respectively arranged on opposite sides of the first sub-pixel unit 221. Among them, both the second sub-pixel unit 222 and the third sub-pixel unit 223 are inclined with respect to the substrate 210, and one end of each of the second sub-pixel unit 222 and the third sub-pixel unit 223 is arranged towards the first sub-pixel unit 221, and the other ends of the second sub-pixel unit 222 and the third sub-pixel unit 223 are inclined towards each other.

[0078] As Figure 6 - Figure 9 shown in the embodiment, at least one sub-pixel unit (the first sub-pixel unit 221, the second sub-pixel unit 222, or the third sub-pixel unit 223) in each pixel unit 220 is inclined with respect to the substrate 210. This kind of scheme will cause the light emission direction of the pixel unit to change. At this time, the sub-pixel units can be arranged in the installation grooves with a reflective layer, and the light emitted by the sub-pixel units is reflected by the reflective layer to change the direction of the light emitted by the sub-pixel units, so that the light emitted by the sub-pixel units in each pixel unit 220 can be emitted towards the light-emitting area 201 corresponding to the pixel unit 220.

[0079] Among them, a plurality of installation grooves 230 arranged in an array are provided on the substrate 210, and a plurality of pixel units 220 can be respectively installed in the installation grooves 230. Among them, a reflective layer 231 is provided on the inner wall of the installation groove 230, and the reflective layer 231 is used to emit the light emitted by the pixel unit 220 towards the light-emitting area 201.

[0080] Among them, the light emitted by any one of the first sub-pixel unit 221, the second sub-pixel unit 222, and the third sub-pixel unit 223 is reflected by the reflection layer 231 on the inner wall of the mounting groove 230 and then emitted from the opening on the side of the mounting groove 230 away from the substrate 210.

[0081] Based on the same inventive concept, the present application also provides a display device. Please refer to Figure 10 . Figure 10 FIG. is a schematic structural diagram of an embodiment of a display device provided by the present application.

[0082] Among them, the display device 30 includes a packaging cover plate 310 and a display substrate 320. Among them, the display substrate 320 can be the display substrate 10 or the display substrate 20 as described above.

[0083] Similarly, the display substrate 320 can include a substrate 321 and a pixel unit 322. The setting manners of the substrate 321 and the pixel unit 322 can be referred to those described in the foregoing embodiments and will not be elaborated herein.

[0084] The packaging cover plate 310 is covered on the side of the pixel unit 322 away from the substrate 321 to package and protect the pixel unit 322.

[0085] Optionally, a light homogenizing film layer 330 can be further provided on the side of the pixel unit 322 away from the substrate 321. The light emitted by the pixel unit 322 can be emitted after passing through the light homogenizing film layer 330 and the packaging cover plate 310 in sequence. Among them, the function of the light homogenizing film layer 330 is to make the light emitted by each pixel unit 322 more uniform in distribution.

[0086] In summary, it is easy for those skilled in the art to understand that the beneficial effects of the present application are: in the solution of the present application, by arranging the second sub-pixel unit away from the substrate relative to the first sub-pixel unit, and by sharing the same light-emitting area for the first sub-pixel unit and the second sub-pixel unit (that is, enabling the light emitted by the first sub-pixel unit and the second sub-pixel unit to be emitted from the same light-emitting area), the projected area of the first sub-pixel unit and the second sub-pixel unit on the substrate can be reduced, so that the projected area of each pixel unit on the substrate can be reduced, that is, the installation area occupied by the projected area on the substrate on the substrate can be reduced. Therefore, the number of pixel units per unit area on the substrate can be increased, the resolution of the display substrate can be improved, and the display effect can be improved.

[0087] The above are only the embodiments of the present application, and do not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present application.

Claims

1. A display substrate, comprising a substrate and a plurality of pixel units arranged in an array on the substrate, characterized in that, A plurality of mounting grooves arranged in an array are provided on the substrate, and the plurality of pixel units are respectively mounted in the mounting grooves. A reflective layer is provided on the inner wall of the mounting groove, and the reflective layer is used to reflect the light emitted by the pixel unit out of the mounting groove; each pixel unit includes a first sub-pixel unit and a second sub-pixel unit, the first sub-pixel unit and the second sub-pixel unit emit lights of different colors respectively, the second sub-pixel is arranged farther from the substrate than the first sub-pixel, and the first sub-pixel and the second sub-pixel share the same light-emitting area; at least one of the first sub-pixel unit and the second sub-pixel unit is inclined with respect to the substrate.

2. The display substrate according to claim 1, wherein each pixel unit further includes a third sub-pixel unit, and the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit emit lights of different colors respectively; the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit are fixedly connected in sequence, and the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit are all inclined with respect to the substrate.

3. The display substrate according to claim 2, wherein the central connection lines of the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit are collinear, and the inclination angle between the central connection lines of the first sub-pixel unit, the second sub-pixel unit, and the third sub-pixel unit and the substrate is 0-90 degrees.

4. A display device, comprising a packaging cover plate and a display substrate, characterized in that, The display substrate is the display substrate according to any one of claims 1-3; The encapsulation cover plate is disposed on the side of the pixel unit away from the substrate.

Citation Information

Patent Citations

  • OLED display substrate and OLED display apparatus

    CN107146806A

  • Organic light-emitting display panel and preparation method thereof, and organic light-emitting display device

    CN108461526A