Display panel and display device
By setting light-transmitting holes in the cathode layer of the display panel and making the light-emitting parts of the first and second display areas the same size, the problem of differences in transmittance and display effect in the under-screen camera area is solved, achieving a full-screen display with high transmittance and seamless connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-03-17
AI Technical Summary
The transmittance and display effect of existing display panels vary greatly in the under-display camera area, resulting in a significant difference in display effect between the regular display area and the under-display camera area, which affects the display effect of full-screen displays.
A light-transmitting hole is provided in the portion of the cathode layer corresponding to the light-transmitting sub-area, and the size of the first sub-light-emitting part of the first display area and the second sub-light-emitting part of the second display area with the same light-emitting color are made the same. By providing a light-transmitting hole in the cathode layer, the transmittance of the first display area is improved and the difference in display effect is reduced.
The transmittance of the first display area was improved, the difference in display effect between the first and second display areas was reduced, a seamless full-screen display effect was achieved, and the screen ratio and display effect of the display panel were improved.
Smart Images
Figure CN121692948A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field, and more particularly to a display panel and display device. Background Technology
[0002] With the development of display technology, the market has increasingly higher requirements for the screen ratio of display panels, and under-display camera technology is an effective way to achieve full-screen displays.
[0003] Currently, the transmittance of the under-display camera area is usually improved by reducing the pixel density, changing the pixel size, and altering the pixel arrangement. However, this results in a more grainy display in the under-display camera area, leading to a significant difference in display quality between the regular display area and the under-display camera area. Summary of the Invention
[0004] This application provides a display panel and a display device that can improve the display effect of the display panel.
[0005] To achieve the above objectives, according to a first aspect of this application, a display panel is provided, having a first display area and a second display area disposed around the periphery of the first display area, the first display area including a light-emitting sub-area and a plurality of light-transmitting sub-areas arranged at intervals, the display panel comprising: The light-emitting layer includes a plurality of first light-emitting portions located in the light-emitting sub-region and a plurality of second light-emitting portions located in the second display region; A cathode layer is disposed on the light-emitting layer; The cathode layer has a light-transmitting hole corresponding to the light-transmitting sub-region, and the size of the first light-emitting part is the same as the size of the second light-emitting part with the same light-emitting color.
[0006] Optionally, three adjacent first light-emitting parts with different light-emitting colors constitute a pixel unit, and at least two adjacent pixel units constitute a repeating unit. The light-transmitting holes and the repeating units are arranged alternately along a first direction and a second direction, the first direction being different from the second direction and perpendicular to the thickness direction of the display panel.
[0007] Optionally, the plurality of first light-emitting parts include a first sub-light-emitting part, a second sub-light-emitting part, and a third sub-light-emitting part, wherein the first sub-light-emitting part emits green light, the second sub-light-emitting part emits red light, and the third sub-light-emitting part emits blue light; In the same repeating unit, the number of the first sub-light-emitting parts is greater than the number of the second sub-light-emitting parts and the number of the third sub-light-emitting parts.
[0008] Optionally, the size of the light-transmitting hole in the first direction is larger than the size of the light-transmitting hole in the second direction.
[0009] Optionally, a plurality of light-transmitting holes are arranged in a row at intervals along a first direction, and a plurality of light-transmitting holes are arranged in a column at intervals along a second direction, and three adjacent first light-emitting parts with different light-emitting colors constitute a pixel unit. Wherein, at least one row of pixel units is provided between two adjacent rows of light-transmitting holes; and / or, at least one column of pixel units is provided between two adjacent columns of light-transmitting holes.
[0010] Optionally, at least one pixel unit located in the same row is provided between two adjacent light-transmitting holes in the same row; And / or, at least one pixel unit located in the same column is provided between two adjacent light-transmitting holes located in the same column.
[0011] Optionally, the light-transmitting holes in adjacent rows are staggered.
[0012] Optionally, the light-transmitting holes in two adjacent rows are arranged side by side.
[0013] Optionally, the distance between the light-transmitting hole and the adjacent first light-emitting part in the direction parallel to the reference plane is greater than or equal to half the distance between two adjacent first light-emitting parts in the direction parallel to the reference plane, and the reference plane is parallel to the light-emitting surface of the display panel.
[0014] According to a second aspect of this application, a display device is provided, including a display panel as described above.
[0015] In the display panel of this application embodiment, by providing a light-transmitting hole in the portion of the cathode layer corresponding to the light-transmitting sub-area, the transmittance of the first display area can be improved, and the size of the first sub-light-emitting part of the first display area and the second sub-light-emitting part of the second display area with the same light-emitting color can be made the same, thereby reducing the difference in display effect between the first display area and the second display area, thereby improving the display effect of the display panel while improving the transmittance of the first display area.
[0016] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.
[0018] Figure 1 A top view of a display panel provided for an embodiment of this application; Figure 2 An enlarged schematic diagram of the first display area in a first type of display panel provided for embodiments of this application; Figure 3 The first type of display panel provided for embodiments of this application is along Figure 2 The cross-sectional view along the A-A' direction shown; Figure 4 An enlarged schematic diagram of the second display area in a first type of display panel provided for embodiments of this application; Figure 5 A schematic diagram showing the distribution of the first sub-light-emitting portion in the first display area of a first type of display panel provided for embodiments of this application; Figure 6 The second type of display panel provided for embodiments of this application is along Figure 2 The cross-sectional view along the A-A' direction shown; Figure 7 An enlarged schematic diagram of the first display area in a third type of display panel provided for embodiments of this application; Figure 8 A schematic diagram showing the distribution of the first sub-light-emitting portion in the first display area of a third type of display panel provided for embodiments of this application; Figure 9 An enlarged schematic diagram of the first display area in a fourth type of display panel provided for embodiments of this application; Figure 10 A schematic diagram showing the distribution of the first sub-light-emitting portion in the first display area of a fourth type of display panel provided for embodiments of this application; Figure 11 An enlarged schematic diagram of the first display area in a fifth type of display panel provided for embodiments of this application; Figure 12 A schematic diagram showing the distribution of the first sub-light-emitting portion in the first display area of a fifth type of display panel provided for embodiments of this application; Figure 13 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. Detailed Implementation
[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.
[0020] An embodiment of this application provides a display panel having a first display area and a second display area disposed around the first display area. The first display area includes a light-emitting sub-area and a plurality of light-transmitting sub-areas arranged at intervals. The display panel includes a light-emitting layer and a cathode layer disposed on the light-emitting layer. The light-emitting layer includes a plurality of first light-emitting parts located in the light-emitting sub-areas and a plurality of second light-emitting parts located in the second display area. The cathode layer has light-transmitting holes in the portion corresponding to the light-transmitting sub-areas. The size of the first light-emitting parts is the same as the size of the second light-emitting parts that emit the same color.
[0021] In the display panel of this application embodiment, by providing a light-transmitting hole in the portion of the cathode layer corresponding to the light-transmitting sub-area, the transmittance of the first display area can be improved, and the size of the first sub-light-emitting part of the first display area and the second sub-light-emitting part of the second display area with the same light-emitting color can be made the same, thereby reducing the difference in display effect between the first display area and the second display area, thereby improving the display effect of the display panel while improving the transmittance of the first display area.
[0022] like Figure 1 As shown, Figure 1 The above view of the display panel provided in the embodiment of this application shows that the display panel 100 includes a display area AA and a non-display area NA disposed around the display area AA. The display area AA is an area for displaying images, and multiple sub-pixels for emitting light may be provided in the display area AA. The non-display area NA is an area for placing peripheral circuits, which may include, but are not limited to, gate driving circuits.
[0023] like Figure 1 As shown, the display area AA includes a first display area AA1 and a second display area AA2 disposed around the first display area AA1. The first display area AA1 and the second display area AA2 are different parts of the same display area AA, and the display screen of the first display area AA1 and the display screen of the second display area AA2 can be seamlessly connected to achieve a full-screen display effect, thereby increasing the screen ratio of the display panel.
[0024] In the embodiments of this application, the transmittance of the first display area AA1 is greater than that of the second display area AA2. The external optical element can be disposed below the portion of the display panel corresponding to the first display area AA1 to obtain ambient light through the first display area AA1, thereby realizing the function of under-display optical sensing or under-display camera.
[0025] In some embodiments, such as Figure 1 As shown, the display area AA has a first display area AA1, which is circular, and a second display area AA2 is located around the first display area AA1, forming a fully enclosed structure around the first display area AA1.
[0026] In practical applications, the shape of the first display area AA1 is not limited to the circle in the above embodiments. The shape of the first display area AA1 can be not only a regular shape such as an ellipse or a strip, but also an irregular shape such as a teardrop. The second display area AA2 can partially or completely surround the first display area AA1. The number of first display areas AA1 is not limited to one in the above embodiments, and the display area AA can also include two or more first display areas AA1.
[0027] like Figure 1 As shown, the area of the first display area AA1 is smaller than the area of the second display area AA2. This ensures that the display effect of the display panel is not affected while meeting optical requirements.
[0028] In some embodiments, such as Figure 2 As shown, Figure 2 The first display area AA1 in the first type of display panel provided in the embodiment of this application is an enlarged schematic diagram. The first display area AA1 includes a light-emitting sub-area AA11 and a plurality of light-transmitting sub-areas AA12 arranged at intervals. The light-emitting sub-area AA11 can be regarded as other areas in the first display area AA1 except for the light-transmitting sub-areas AA12. The transmittance of the light-transmitting sub-area AA12 is greater than that of the light-emitting sub-area AA11.
[0029] The light-emitting sub-area AA11 may contain multiple sub-pixels for emitting light, while the light-transmitting sub-area AA12 does not contain any sub-pixels. During the operation of the display panel, the light-emitting sub-area AA11 is used to display the image required to be displayed in the first display area AA1, while the light-transmitting sub-area AA12 is the area for transmitting ambient light. Optical elements can obtain ambient light through multiple light-transmitting sub-areas AA12.
[0030] like Figure 2 and Figure 3 As shown, Figure 3 The first type of display panel provided for embodiments of this application is along Figure 2The cross-sectional view along the A-A' direction shows that the display panel 100 includes a light-emitting layer 1 and a cathode layer 2 disposed on the light-emitting layer 1. The light-emitting layer 1 may include a plurality of first light-emitting parts 110 and a plurality of second light-emitting parts 120. The plurality of first light-emitting parts 110 are spaced apart in the light-emitting sub-regions AA11 of the first display area AA1, and each first light-emitting part 110 can be regarded as a sub-pixel. The plurality of second light-emitting parts 120 are arrayed in the second display area AA2, and each second light-emitting part 120 can be regarded as a sub-pixel.
[0031] In some embodiments, such as Figure 3 As shown, the display panel includes a substrate 3, a driving circuit layer 4, an anode layer 5, a pixel definition layer 6, a support layer 7, a light-emitting layer 1, and a cathode layer 2 stacked sequentially on the substrate 3. The driving circuit layer 4 is composed of an active layer, an insulating layer, and a metal conductive layer stacked together. The driving circuit layer 4 contains a pixel driving circuit (not shown in the figure), which is located in the light-emitting sub-region AA1 and the second display area AA2. The anode layer 5 includes multiple patterned anodes 51, which are respectively disposed in the light-emitting sub-region AA1 and the second display area AA2. The light-transmitting sub-region AA12 does not contain a pixel driving circuit or a cathode, thus improving the transmittance of the light-transmitting sub-region AA12.
[0032] In some embodiments, such as Figure 3 As shown, the pixel definition layer 6 has multiple pixel openings, which are respectively located in the light-emitting sub-area AA12 and the second display area AA2. The first light-emitting part 110 and the second light-emitting part 120 are respectively located in the corresponding pixel openings.
[0033] In the embodiments of this application, the film structure of the driving circuit layer 4 and the circuit structure of the pixel driving circuit can be replaced with the film structure of the driving circuit layer and the circuit structure of the pixel driving circuit in an existing display panel to achieve the same or similar functions, which will not be elaborated here.
[0034] In some embodiments, such as Figure 2 and Figure 3 As shown, the cathode layer 2 has a light-transmitting hole 21 in the portion corresponding to the phototransmitting sub-region AA12. By providing the light-transmitting hole 21 in the portion of the cathode layer 2 corresponding to the phototransmitting sub-region AA12, the obstruction and reflection of light by the cathode layer 2 can be reduced, thereby improving the transmittance of the phototransmitting sub-region AA12.
[0035] In some embodiments, the shape of the light-transmitting aperture 21 is the same as the shape of the corresponding light-transmitting sub-region AA12, and the size of the light-transmitting aperture 21 is less than or equal to the size of the corresponding light-transmitting sub-region AA12.
[0036] In some embodiments, such as Figure 2As shown, the size of the first light-emitting part 110 is the same as the size of the second light-emitting part 120, which has the same light-emitting color.
[0037] like Figure 2 and Figure 4 As shown, Figure 4 An enlarged schematic diagram of the second display area in a first type of display panel provided for an embodiment of this application shows that a plurality of first light-emitting parts 110 include a first sub-light-emitting part 111, a second sub-light-emitting part 112 and a third sub-light-emitting part 113, and a plurality of second light-emitting parts 120 include a fourth sub-light-emitting part 121, a fifth sub-light-emitting part 122 and a sixth sub-light-emitting part 123.
[0038] Taking the first sub-light-emitting part 111 and the fourth sub-light-emitting part 121 as examples, both emit green light. The size of the first sub-light-emitting part 111 is the same as that of the fourth sub-light-emitting part 121, and the size of the pixel opening corresponding to the first sub-light-emitting part 111 is also the same as that of the pixel opening corresponding to the fourth sub-light-emitting part 121. It should be noted that the size of the first sub-light-emitting part 111 refers to the diameter of its bottom or the diameter of its smallest circumscribed circle, and the size of the fourth sub-light-emitting part 121 refers to the diameter of its bottom or the diameter of its smallest circumscribed circle. Under the same operating current, the brightness of the first sub-light-emitting part 111 and the fourth sub-light-emitting part 121 is the same.
[0039] Similarly, the second sub-light-emitting unit 112 and the fifth sub-light-emitting unit 122 emit red light, and the second sub-light-emitting unit 112 and the fifth sub-light-emitting unit 122 are the same size. The third sub-light-emitting unit 113 and the sixth sub-light-emitting unit 123 emit blue light, and the third sub-light-emitting unit 113 and the sixth sub-light-emitting unit 123 are the same size. This reduces the difference in display effect between the first display area AA1 and the second display area AA2, thereby improving the display effect of the display panel while increasing the transmittance of the first display area AA1.
[0040] In some embodiments, the first light-emitting portion 110 and the second light-emitting portion 120, which emit the same color, have the same shape and area. The distance between two adjacent first light-emitting portions 110 is equal to the distance between two adjacent second light-emitting portions 120, so that the density of the first light-emitting portions 110 in the light-emitting sub-region AA11 is equal to the density of the second light-emitting portions 120 in the second display area AA2. This allows the design of the precision metal mask plates corresponding to the first display area AA1 and the second display area AA2 to be identical, without needing to change the shape, size, or arrangement of the first light-emitting portions 110 in the first display area AA1. When an existing display panel without an under-display camera structure is converted to one using an under-display camera structure, there is no need to change the structure of the precision metal mask plate, thereby reducing production costs.
[0041] In some embodiments, three adjacent first light-emitting portions 110 with different light-emitting colors constitute a pixel unit 11, and at least two adjacent pixel units 11 constitute a repeating unit 10. The light-transmitting hole 21 and the repeating unit 10 are arranged alternately along a first direction X and a second direction Y. The first direction is different from the second direction and is perpendicular to the thickness direction of the display panel.
[0042] In one embodiment, such as Figure 2 As shown, in the light-emitting sub-region AA11, a first sub-light-emitting part 111, an adjacent second sub-light-emitting part 112, and a third sub-light-emitting part 113 constitute a pixel unit 11. Each pixel unit 11 can be regarded as a pixel. Multiple pixel units 11 are arranged at intervals along the first direction X and the second direction Y. Four adjacent pixel units 11 are arranged in a matrix to form a repeating unit 10. The light-transmitting hole 21 is disposed between adjacent repeating units 10. The first direction X is perpendicular to the second direction Y. The first direction X can be regarded as the horizontal direction under the top view angle, and the second direction Y can be regarded as the vertical direction under the top view angle.
[0043] In some other embodiments, the number of pixel units 11 in the repeating unit 10 is not limited to the four in the above embodiments, and the repeating unit 10 may include two or three or more pixel units 11.
[0044] like Figure 2 As shown, the light-transmitting holes 21 and repeating units 10 are arranged alternately along the first direction X and the second direction Y. Multiple light-transmitting holes 21 are arranged in rows at intervals along the first direction X, and multiple light-transmitting holes 21 are arranged in columns at intervals along the second direction Y. Each repeating unit 10 is disposed between two adjacent light-transmitting holes 21 in the first direction X or the second direction Y. In some embodiments, such as Figure 1 As shown, adjacent rows of light-transmitting holes 21 are arranged in an alternating pattern, and adjacent columns of light-transmitting holes 21 are also arranged in an alternating pattern. For example, any light-transmitting hole 21 in one row is located in a different column from the nearest light-transmitting hole 21 in the adjacent row. This allows the repeating units 10 to be evenly distributed in the first display area AA1, thereby reducing the graininess of the displayed image in the first display area AA1 and improving the display effect of the first display area AA1.
[0045] In some embodiments, the distance between the light-transmitting hole 21 and the adjacent first light-emitting part 110 in the direction parallel to the reference plane is greater than or equal to half the distance between the two adjacent first light-emitting parts 110 in the direction parallel to the reference plane, and the reference plane is parallel to the light-emitting surface of the display panel.
[0046] like Figure 1As shown, the distance between the light-transmitting hole 21 and the adjacent first light-emitting part 110 in the direction parallel to the reference plane is the first distance d1, and the distance between two adjacent first light-emitting parts 110 in the direction parallel to the reference plane is the second distance d2. The first distance d1 is greater than or equal to half of the second distance d2. This ensures that the cathode near the light-transmitting sub-region AA12 can completely cover the first light-emitting part 110, thereby ensuring the light-emitting efficiency of the sub-pixel near the light-transmitting sub-region AA12.
[0047] In some embodiments, the size of the light-transmitting hole 21 is equal to the size of the repeating unit 10, so that the pixel density of the first display area AA1 can be increased to improve the display effect of the first display area AA1, while increasing the transmittance of the first display area AA1.
[0048] In some other embodiments, the size of the light-transmitting hole 21 may be larger or smaller than the size of the repeating unit 10, as long as the distance between the light-transmitting hole 21 and the adjacent first light-emitting part 110 is greater than or equal to half the distance between two adjacent first light-emitting parts 110.
[0049] In some embodiments, such as Figure 2 As shown, the light-transmitting hole 21 is a rounded rectangle. In some other embodiments, the shape of the light-transmitting hole 21 is not limited to a rounded rectangle, but can also be a square, rectangle, circle, ellipse or other irregular shape.
[0050] In some embodiments, such as Figure 2 and Figure 3 As shown, the support layer 7 includes a plurality of first support portions 71, which are respectively disposed in the first display area AA1 and the second display area AA2. The first support portions 71 are used to support the photomask. In the first display area AA1, the plurality of first support portions 71 may be disposed only in the light-emitting sub-area AA11 or the light-transmitting sub-area AA12, or the plurality of first support portions 71 may be disposed in the light-emitting sub-area AA11 and the light-transmitting sub-area AA12 respectively. The density and size of the first support portions 71 in the light-transmitting sub-area AA12 are the same as the density and size of the first support portions 71 in the light-emitting sub-area AA11 and the second display area AA2.
[0051] like Figure 5 As shown, Figure 5This is a schematic diagram showing the distribution of the first sub-light-emitting parts in the first display area of a first display panel provided in an embodiment of this application. Compared to existing display panels, the embodiments of this application increase the number of first light-emitting parts 110 in the first display area AA1 by making the size of the first light-emitting part 110 in the first display area AA1 the same as the size of the second light-emitting part 120 in the second display area AA2, which emits the same color. Therefore, the number of first sub-light-emitting parts 111 emitting green light can also be increased. Since green accounts for more than 70% of the brightness in a white screen, increasing the number of first sub-light-emitting parts 111 in the first display area AA1 not only improves the display effect of the first display area AA1 but also extends the lifespan of the display panel.
[0052] like Figure 6 As shown, Figure 6 The second type of display panel provided for embodiments of this application is along Figure 2 The cross-sectional view along the A-A' direction shown has a structure similar to... Figures 1 to 4 The structure of the first type of display panel shown is roughly the same, except that the support layer 7 includes a plurality of first support parts 71 and a plurality of second support parts 72. The plurality of first support parts 71 are respectively disposed in the light-emitting sub-area AA11 and the second display area AA12, and the second support parts 72 are disposed in the light-transmitting sub-area AA12.
[0053] In some embodiments, the height of the first support portion 71 is the same as the height of the second support portion 72, and the size of the first support portion 71 is smaller than the size of the second support portion 72. By providing the second support portion 72 in the light-transmitting sub-region AA12 and making the size of the second support portion 72 larger than the size of the first support portion 71, the supporting effect of the support layer 7 on the mask is improved, thereby reducing the risk of the mask scratching the display panel without affecting the pixel density.
[0054] In some embodiments, the density of the first support portion 71 is less than the density of the second support portion 72. By providing the second support portion 72 in the light-transmitting sub-region AA12 and making the density of the second support portion 72 greater than the density of the first support portion 71, the supporting effect of the support layer 7 on the mask is improved, thereby reducing the risk of the mask scratching the display panel without affecting the pixel density.
[0055] like Figure 7 and Figure 8 As shown, Figure 7 An enlarged schematic diagram of the first display area in a third type of display panel provided for an embodiment of this application. Figure 8 A schematic diagram of the distribution of the first sub-light-emitting portion in the first display area of the third type of display panel provided in the embodiments of this application, the structure of which is similar to... Figure 2The structure of the first type of display panel shown is roughly the same, except that in the same repeating unit 10, the number of first sub-light-emitting parts 111 is greater than the number of second sub-light-emitting parts 112 and the number of third sub-light-emitting parts 113. By increasing the number of first sub-light-emitting parts 111, the lifespan of the display panel can be further improved.
[0056] In some embodiments, such as Figure 7 As shown, each repeating unit 10 includes a plurality of pixel units 11 and at least one first sub-light-emitting part 111 other than the pixel units 11. By adding an additional green-emitting first sub-light-emitting part 111 in the repeating unit 10, the display effect of the first display area AA1 can be improved while the service life of the display panel can be increased.
[0057] In one embodiment, such as Figure 7 As shown, each repeating unit 10 includes four adjacent pixel units 11 and two first sub-light-emitting parts 111 located between the light-transmitting hole 21 and the adjacent pixel units 11 in the second direction Y.
[0058] In some embodiments, the size of the light-transmitting hole 21 in the first direction X is larger than the size of the light-transmitting hole 21 in the second direction Y.
[0059] like Figure 7 As shown, the light-transmitting hole 21 has a first size s1 in the first direction X and a second size s2 in the second direction Y. The first size s1 is larger than the second size s2. By reducing the second size s2 of the light-transmitting hole 21 in the second direction Y, a first sub-light-emitting part 111 can be added between the light-transmitting hole 21 and the adjacent pixel unit 11 in the second direction Y. In this way, the transmittance of the first display area AA1 can be increased while the service life of the display panel can be improved.
[0060] like Figure 9 and Figure 10 As shown, Figure 9 An enlarged schematic diagram of the first display area in a fourth type of display panel provided for embodiments of this application. Figure 10 This is a schematic diagram showing the distribution of the first sub-light-emitting part in the first display area of the fourth type of display panel provided in the embodiments of this application. A plurality of light-transmitting holes 21 are arranged in rows at intervals along the first direction X, and a plurality of light-transmitting holes 21 are arranged in columns at intervals along the second direction Y. Three adjacent first light-emitting parts 110 with different light-emitting colors constitute a pixel unit 11. At least one row of pixel units 11 is provided between two adjacent rows of light-transmitting holes 21, and / or at least one column of pixel units 11 is provided between two adjacent columns of light-transmitting holes 21.
[0061] By setting at least one row of pixel units 11 between two adjacent rows of light-transmitting holes 21, and / or setting at least one column of pixel units 11 between two adjacent columns of light-transmitting holes 21, the pixel density in the first display area AA1 is increased, the display effect of the first display area AA1 is improved, and the display life of the display panel can be increased while improving the transmittance of the first display area AA1.
[0062] In some embodiments, at least one pixel unit 11 located in the same row is provided between two adjacent light-transmitting holes 21 located in the same row; and / or, at least one pixel unit 11 located in the same column is provided between two adjacent light-transmitting holes 21 located in the same column.
[0063] In one embodiment, such as Figure 9 As shown, three pixel units 11 are provided between two adjacent light-transmitting holes 21 in the same row, and three pixel units 11 are provided between two adjacent light-transmitting holes 21 in the same column. This can increase the number of sub-pixels in the first display area AA1, improve the display effect of the first display area AA1, and thus improve the transmittance of the first display area AA1 while increasing the display life of the display panel.
[0064] In some embodiments, such as Figure 9 As shown, adjacent rows of light-transmitting holes 21 are staggered. For example, any light-transmitting hole 21 in one row is located in a different column from the nearest light-transmitting hole 21 in the adjacent row, and a column of pixel units 11 is arranged between them. This allows the light-transmitting holes 21 and pixel units 11 to be evenly distributed in the first display area AA1, thereby improving the graininess of the displayed image in the first display area AA1, improving the display effect of the first display area AA1, and increasing the transmittance of the first display area AA1.
[0065] In practical applications, two or more rows of pixel units can be arranged between two adjacent rows of light-transmitting holes 21, and two or more columns of pixel units can also be arranged between two adjacent columns of light-transmitting holes 21. This can further increase the number of first sub-light-emitting parts 111 in the first display area, thereby increasing the transmittance of the first display area AA1, improving the display effect of the first display area AA1, and increasing the service life of the display panel.
[0066] like Figure 11 and Figure 12 As shown, Figure 11 An enlarged schematic diagram of the first display area in a fifth type of display panel provided for an embodiment of this application. Figure 12 A schematic diagram showing the distribution of the first sub-light-emitting portion in the first display area of the fifth type of display panel provided in the embodiments of this application, the structure of which is similar to... Figure 9 and Figure 10The structures of the display panels shown are roughly the same, with the difference being that: two adjacent rows of light-transmitting holes 21 are arranged side by side, and any light-transmitting hole 21 in one row is located in the same column as the other light-transmitting hole 21 in the adjacent row that is closest to it. A pixel unit 11 is arranged between two adjacent light-transmitting holes 21 in the same row, and a pixel unit is arranged between two adjacent light-transmitting holes 21 in the same column. This can further increase the number of light-transmitting holes 21 in the first display area AA1, thereby further increasing the transmittance of the first display area AA1.
[0067] Based on the display panel provided in the above embodiments of this application, embodiments of this application also provide a display device, in conjunction with... Figure 13 As shown, Figure 13 This is a schematic diagram of the structure of a display device provided in an embodiment of this application. The display device 1000 includes a display panel 100 and a housing 200, with the display panel 100 disposed on the housing 200. The display panel 100 can be any of the display panels provided in the above embodiments of this application, and can achieve the same technical effects as the display panels provided in the above embodiments, which will not be described in detail here.
[0068] In some embodiments, such as Figure 1 and Figure 13 As shown, the display device 1000 also includes an optical element 300, which is disposed below the display panel 100 and aligned with the first display area AA1 of the display panel 100. The optical element 300 can acquire ambient light through the first display area AA1. The optical element 300 may include, but is not limited to, at least one of optical sensors such as a camera and an infrared sensor. When the optical element 300 includes a camera, the display device can realize the function of under-display photography.
[0069] The beneficial effects of the embodiments of this application are as follows: The embodiments of this application provide a display panel and a display device. The display panel has a first display area and a second display area disposed around the first display area. The first display area includes a light-emitting sub-area and a plurality of light-transmitting sub-areas arranged at intervals. The display panel includes a light-emitting layer and a cathode layer disposed on the light-emitting layer. The light-emitting layer includes a plurality of first light-emitting parts located in the light-emitting sub-areas and a plurality of second light-emitting parts located in the second display area. By providing light-transmitting holes in the portion of the cathode layer corresponding to the light-transmitting sub-areas, the transmittance of the first display area can be improved, and the size of the first light-emitting sub-areas of the first display area and the second light-emitting sub-areas of the same light-emitting color in the second display area can be made the same, thereby reducing the difference in display effect between the first display area and the second display area. Thus, while improving the transmittance of the first display area, the display effect of the display panel can be improved.
[0070] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0071] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0072] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.
[0073] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.
Claims
1. A display panel, characterized by, The display panel has a first display area and a second display area arranged at the periphery of the first display area, the first display area comprises light-emitting sub-areas and a plurality of spaced transparent sub-areas, and the display panel comprises: a light-emitting layer comprising a plurality of first light-emitting parts in the light-emitting sub-areas and a plurality of second light-emitting parts in the second display area; a cathode layer arranged on the light-emitting layer; wherein the cathode layer is provided with a light-transmitting hole corresponding to the transparent sub-areas, and the size of the first light-emitting part is the same as that of the second light-emitting part with the same light-emitting color.
2. The display panel of claim 1, wherein, Three adjacent first light-emitting parts with different light-emitting colors constitute a pixel unit, and at least two adjacent pixel units constitute a repeating unit. wherein the light-transmitting hole and the repeating unit are arranged alternately in a first direction and a second direction, the first direction is different from the second direction, and perpendicular to the thickness direction of the display panel.
3. The display panel of claim 2, wherein, The plurality of first light-emitting parts comprises first, second and third sub-light-emitting parts, the first sub-light-emitting part emits green light, the second sub-light-emitting part emits red light, and the third sub-light-emitting part emits blue light. wherein in the same repeating unit, the number of first sub-light-emitting parts is greater than the number of second sub-light-emitting parts and the number of third sub-light-emitting parts.
4. The display panel of claim 3, wherein, The size of the light-transmitting hole in the first direction is greater than the size of the light-transmitting hole in the second direction.
5. The display panel of claim 1, wherein, The plurality of light-transmitting holes are arranged in rows in the first direction, and arranged in columns in the second direction, and three adjacent first light-emitting parts with different light-emitting colors constitute a pixel unit. wherein at least one row of pixel units is arranged between two adjacent rows of light-transmitting holes; and / or at least one column of pixel units is arranged between two adjacent columns of light-transmitting holes.
6. The display panel of claim 5, wherein, at least one pixel unit in the same row is arranged between two adjacent light-transmitting holes in the same row; and / or at least one pixel unit in the same column is arranged between two adjacent light-transmitting holes in the same column.
7. The display panel of claim 5, wherein, Two adjacent rows of light-transmitting holes are arranged in a staggered manner.
8. The display panel of claim 5, wherein, Two adjacent rows of light-transmitting holes are arranged side by side.
9. The display panel of any one of claims 1 to 8, wherein, The distance between the light-transmitting hole and the adjacent first light-emitting part in the direction parallel to the reference plane is greater than or equal to half the distance between two adjacent first light-emitting parts in the direction parallel to the reference plane, and the reference plane is parallel to the light-emitting surface of the display panel.
10. A display device, characterized by comprising: The display panel comprises any one of claims 1 to 9.