Display Substrate and Display Device

Abstract

The present invention discloses a display substrate and a display device. The display area is set as a first display sub-area with a large pixel distribution density (i.e., high resolution) and a second display sub-area with a small pixel distribution density (i.e., low resolution). Since the pixel distribution density in the second display sub-area is small, components such as cameras, sensors, and speakers can be arranged in the second display sub-area. That is, by reducing the local pixel distribution density to increase the screen light transmittance, the screen-to-body ratio of the display substrate is improved.

Description

[0001] This application is a divisional application. The application number of the original application is 201810714668.0, the filing date of the original application is June 29, 2018, and the title of the original application is "Display Substrate, Its Display Method, Display Device and High-Precision Metal Mask". The entire content of the original application is incorporated herein by reference. Technical Field

[0002] The present invention relates to the field of display technologies, and particularly to a display substrate and a display device. Background Art

[0003] With the development of display technologies, full-screen displays have received extensive attention because of their large screen-to-body ratios and ultra-narrow bezels, which can greatly improve the visual experience of viewers compared with ordinary display screens. Currently, in display devices such as mobile phones with full-screen displays, in order to implement functions such as selfies, video calls, and fingerprint recognition, a front camera, a receiver, a fingerprint recognition area, or physical buttons are usually provided on the front of the display device. However, the setting of these necessary functional components has become a major factor restricting the improvement of the screen-to-body ratio. Summary of the Invention

[0004] Embodiments of the present invention provide a display substrate and a display device to solve the problem of a small screen-to-body ratio in the prior art.

[0005] A display substrate provided by an embodiment of the present invention, the display area of the display substrate includes a first display sub-region and a second display sub-region;

[0006] The pixel distribution density in the first display sub-region is greater than the pixel distribution density in the second display sub-region;

[0007] The first display sub-region includes: a plurality of adjacent first pixel units and second pixel units; the first pixel unit includes a first sub-pixel and a second sub-pixel, and the second pixel unit includes a third sub-pixel and a second sub-pixel;

[0008] In the first display sub-region, the first pixel units and the second pixel units are alternately arranged in the column direction, and the first pixel units and the second pixel units are alternately arranged in the row direction;

[0009] The second display sub-region includes a plurality of third pixel units, and each third pixel unit includes a plurality of sub-pixels; the first display sub-region is a normal display region, and the second display sub-region is an under-screen camera display region with a camera. The line connecting the centers of two sub-pixels in each first pixel unit is not parallel to the row direction and not parallel to the column direction, and the line connecting the centers of two sub-pixels in each second pixel unit is not parallel to the row direction and not parallel to the column direction;

[0010] Each third pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The light-emitting area of the second sub-pixel in the second display sub-region is larger than that of the second sub-pixel in the first display sub-region; the second sub-pixels of the third pixel units on the same column are located on the same straight line, the distance between any two adjacent second sub-pixels in the same column is the same, the distance between any two adjacent second sub-pixels in the same row is the same, and the first sub-pixel, the second sub-pixel, and the third sub-pixel all have edges parallel to the column direction or the row direction.

[0011] Optionally, in the display substrate provided in the embodiment of the present invention, the second display sub-region has multiple columns of sub-pixels, and at least two columns of sub-pixels in the second display sub-region are aligned with the corresponding two columns of sub-pixels in the first display sub-region;

[0012] In the row direction, there is at least one column of sub-pixels of the first display sub-region between two adjacent columns of sub-pixels in the second display sub-region, and the row direction is perpendicular to the column direction.

[0013] Optionally, in the display substrate provided in the embodiment of the present invention, the third pixel units in the second display sub-region are arranged in multiple rows and multiple columns that are parallel to each other, and the third pixel units in adjacent rows are aligned, and the third pixel units in adjacent columns are aligned.

[0014] Optionally, in the display substrate provided in the embodiment of the present invention, within the same row of the second display sub-region, among any two adjacent third pixel units: the bisectors of the first sub-pixel and the third sub-pixel of one third pixel unit in the row direction pass through the second sub-pixel of the other third pixel unit;

[0015] The second sub-pixels of different third pixel units in the same column are located on the same straight line.

[0016] Optionally, in the display substrate provided in the embodiment of the present invention, among the four sub-pixels closest to each other in the second display sub-region, the first sub-pixel and the third sub-pixel are located on both sides, and the two second sub-pixels are located in the middle. The center of each second sub-pixel is connected to the centers of the first sub-pixel and the third sub-pixel to form a triangle.

[0017] Optionally, in the display substrate provided by the embodiments of the present invention, among three adjacent columns of sub-pixels in the second display sub-region, the middle column is the second sub-pixel, and the two columns on both sides are sub-pixel columns in which the first sub-pixel and the third sub-pixel are alternately arranged. Among the two columns of sub-pixels on both sides, the first sub-pixel and the third sub-pixel are located on the same straight line in the row direction.

[0018] Optionally, in the display substrate provided by the embodiments of the present invention, the first display sub-region has a plurality of second sub-pixel columns extending in the column direction, and the sub-pixel columns located at the edge of the first display sub-region are the second sub-pixel columns. The sub-pixels adjacent to the second sub-pixel columns at the edge of the first display sub-region in the second display sub-region are the first sub-pixels or the third sub-pixels.

[0019] Optionally, in the display substrate provided by the embodiments of the present invention, the size of the second sub-pixel of the first display sub-region in the column direction is less than half of the size of the second sub-pixel of the second display sub-region in the column direction.

[0020] Optionally, in the display substrate provided by the embodiments of the present invention, the first display sub-region includes multiple columns of sub-pixels, among which some columns are the second sub-pixels, and the remaining columns are arranged with the first sub-pixels and the third sub-pixels alternately, and the first sub-pixel and the third sub-pixel are located on the same straight line in the row direction.

[0021] Optionally, in the display substrate provided by the embodiments of the present invention, the shapes of the second sub-pixels in the first display sub-region and the second display sub-region are different.

[0022] Optionally, in the display substrate provided by the embodiments of the present invention, the number of the second sub-pixels in the first display sub-region is more than the number of the first sub-pixels or the third sub-pixels. Among the columns of sub-pixels with the first sub-pixels and the third sub-pixels alternately arranged, the adjacent first sub-pixel and the third sub-pixel respectively form a triangle with the second sub-pixels in the adjacent left or right column.

[0023] Optionally, in the display substrate provided by the embodiments of the present invention, within the first display sub-region, the distance between the centers of adjacent second sub-pixel groups in a column of sub-pixels is equal; wherein, within the first display sub-region, two adjacent second sub-pixels along the column direction form a second sub-pixel group.

[0024] Optionally, in the display substrate provided by the embodiments of the present invention, multiple columns of sub-pixels in the first display sub-region respectively have first sub-pixels and third sub-pixels arranged alternately, wherein two adjacent columns of sub-pixels are arranged in a staggered manner, and the first sub-pixel and the third sub-pixel are located on the same straight line in the row direction.

[0025] Optionally, in the display substrate provided by the embodiments of the present invention, the first sub-pixel emits blue light, the second sub-pixel emits green light, and the third sub-pixel emits red light.

[0026] On the other hand, the embodiments of the present invention also provide another display substrate, and the display area of the display substrate includes a first display sub-region and a second display sub-region:

[0027] The pixel distribution density in the first display sub-region is greater than the pixel distribution density in the second display sub-region;

[0028] Both the first display sub-region and the second display sub-region include multiple columns of sub-pixels arranged in parallel, and one column of sub-pixels in the first display sub-region is aligned with one column of sub-pixels in the corresponding second display sub-region; the first display sub-region includes: multiple adjacent first pixel units and second pixel units; the first pixel unit includes a first sub-pixel and a second sub-pixel, and the second pixel unit includes a third sub-pixel and a second sub-pixel;

[0029] In the first display sub-region, the first pixel unit and the second pixel unit are arranged alternately in the column direction, and the first pixel unit and the second pixel unit are arranged alternately in the row direction;

[0030] The second display sub-region includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the light-emitting area of the second pixel in the second display sub-region is greater than the light-emitting area of the second sub-pixel in the first display sub-region.

[0031] Optionally, in the display substrate provided by the embodiments of the present invention, the centers of adjacent first sub-pixels, second sub-pixels, and third sub-pixels in the second display sub-region form an isosceles triangle when connected.

[0032] Optionally, in the display substrate provided by the embodiments of the present invention, two adjacent first sub-pixels and two second sub-pixels in the second display sub-region form a rectangle, and the third sub-pixel is located at the center of the rectangle.

[0033] Optionally, in the display substrate provided by the embodiments of the present invention, the second sub-pixels in the second display sub-region are arranged in multiple rows, and the second sub-pixels in adjacent rows are arranged in a staggered manner.

[0034] Optionally, in the display substrate provided by the embodiments of the present invention, the second display sub-region includes a plurality of sub-pixel columns extending in the column direction. In the row direction, there is at least one column of sub-pixels of the first display sub-region between two adjacent columns of sub-pixels in the second display sub-region.

[0035] Optionally, in the display substrate provided by the embodiments of the present invention, the first display sub-region has a plurality of second sub-pixel rows extending in the row direction, and the sub-pixel rows located at the edge of the first display sub-region are the second sub-pixel rows.

[0036] Optionally, in the display substrate provided by the embodiments of the present invention, the first sub-pixel in the first display sub-region and the adjacent second and third sub-pixels on one side in the row direction form a triangle, and the first sub-pixel and the adjacent second and third sub-pixels on the other side in the row direction can also form a triangle.

[0037] Optionally, in the display substrate provided by the embodiments of the present invention, in the first display sub-region, the first and third sub-pixels closest to a row of second sub-pixels on one side in the column direction are arranged alternately in the row direction.

[0038] Optionally, in the display substrate provided by the embodiments of the present invention, one row of first sub-pixels and one row of third sub-pixels in the first display sub-region are arranged in alignment.

[0039] Optionally, in the display substrate provided by the embodiments of the present invention, the shapes of the effective light-emitting regions of the second display sub-region and the second sub-pixels in the first display sub-region are different.

[0040] Optionally, in the display substrate provided by the embodiments of the present invention, the first sub-pixel emits blue light, the second sub-pixel emits green light, and the third sub-pixel emits red light.

[0041] Correspondingly, the embodiments of the present invention further provide a display device, including any one of the above-mentioned display substrates provided by the embodiments of the present invention.

[0042] The beneficial effects of the present invention are as follows:

[0043] In the display substrate, its display method, display device, and high-precision metal mask provided by the embodiments of the present invention, since the display area is set as the first display sub-region with a large pixel distribution density (i.e., high resolution) and the second display sub-region with a small pixel distribution density (i.e., low resolution). Since the pixel distribution density in the second display sub-region is small, components such as cameras, sensors, and speakers can be arranged in the second display sub-region, that is, by reducing the local pixel distribution density to increase the screen light transmittance to improve the screen-to-body ratio of the display substrate. Description of the Drawings

[0044] Figure 1a One of the schematic structural diagrams of the display substrate provided by an embodiment of the present invention;

[0045] Figure 1b Another schematic structural diagram of the display substrate provided by an embodiment of the present invention;

[0046] Figure 1c Still another schematic structural diagram of the display substrate provided by an embodiment of the present invention;

[0047] Figure 1d Yet another schematic structural diagram of the display substrate provided by an embodiment of the present invention;

[0048] Figure 1e One more schematic structural diagram of the display substrate provided by an embodiment of the present invention;

[0049] Figure 1f Another schematic structural diagram of the display substrate provided by an embodiment of the present invention;

[0050] Figure 2 One of the partial structural diagrams of the first display sub-region and the second display sub-region in the display substrate provided by an embodiment of the present invention;

[0051] Figure 3 Another partial structural diagram of the first display sub-region and the second display sub-region in the display substrate provided by an embodiment of the present invention;

[0052] Figure 4 Still another partial structural diagram of the first display sub-region and the second display sub-region in the display substrate provided by an embodiment of the present invention;

[0053] Figure 5 Yet another partial structural diagram of the first display sub-region and the second display sub-region in the display substrate provided by an embodiment of the present invention;

[0054] Figure 6 One more partial structural diagram of the first display sub-region and the second display sub-region in the display substrate provided by an embodiment of the present invention;

[0055] Figure 7 Another partial structural diagram of the first display sub-region and the second display sub-region in the display substrate provided by an embodiment of the present invention;

[0056] Figure 8 Schematic structural diagram of the high-precision metal mask provided by an embodiment of the present invention;

[0057] Figure 9 Schematic flow diagram of the display method provided by an embodiment of the present invention;

[0058] Figure 10Schematic diagram of pixels corresponding to each sub-pixel in the second display area in the initial image pixel data provided by the embodiment of the present invention;

[0059] Figure 11a One of the schematic diagrams of reference pixels corresponding to each sub-pixel in the second display area in the initial image pixel data provided by the embodiment of the present invention;

[0060] Figure 11b Another schematic diagram of reference pixels corresponding to each sub-pixel in the second display area in the initial image pixel data provided by the embodiment of the present invention;

[0061] Figure 11c The third schematic diagram of reference pixels corresponding to each sub-pixel in the second display area in the initial image pixel data provided by the embodiment of the present invention;

[0062] Figure 11d The fourth schematic diagram of reference pixels corresponding to each sub-pixel in the second display area in the initial image pixel data provided by the embodiment of the present invention. Detailed implementation manners

[0063] The embodiment of the present invention provides a display substrate, a display method thereof, a display device and a high-precision metal mask. In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0064] The shapes and sizes of the components in the drawings do not reflect the actual proportions, and the purpose is only to illustrate the content of the present invention schematically.

[0065] A display substrate provided by the embodiment of the present invention, as Figures 1a to 1f shown, the display area of the display substrate includes a first display sub-area A1 and a second display sub-area A2;

[0066] The pixel distribution density in the first display sub-area A1 is greater than the pixel distribution density in the second display sub-area A2;

[0067] As Figures 2 to 7 shown, a plurality of sub-pixels with uniform distribution are arranged in the second display sub-area A2.

[0068] The display substrate provided by the embodiment of the present invention sets the display area as a first display sub-area with a large pixel distribution density (i.e., high resolution) and a second display sub-area with a small pixel distribution density (i.e., low resolution). Since the pixel distribution density in the second display sub-area is small, components such as cameras, sensors, and speakers can be arranged in the second display sub-area. That is, by reducing the local pixel distribution density to increase the screen light transmittance, the screen-to-body ratio of the display substrate is improved. And the sub-pixels are evenly distributed in the second display sub-area, which can ensure uniform brightness distribution in the second display sub-area.

[0069] It should be noted that in the embodiment of the present invention, the specific calculation formula for the pixel distribution density is: ; where ρ represents the pixel distribution density, x represents the number of display pixels in the row direction, y represents the number of display pixels in the column direction, and S represents the screen area.

[0070] In specific implementation, in the display substrate provided by the embodiment of the present invention, the relative position relationship and shape of the first display sub-area and the second display sub-area are not limited and can be set according to the screen design of the display substrate. Taking a mobile phone as an example, as Figure 1a shown, the second display sub-area A2 can be set in the upper left corner of the first display sub-area A1, or as Figure 1b shown, the second display sub-area A2 can be set in the upper right corner of the first display sub-area A1, or as Figure 1c shown, the second display sub-area A2 can be set at the upper middle position of the first display sub-area A1, or as Figure 1d shown, the second display sub-area A2 can be set in the middle of the first display sub-area A1, or as Figure 1e shown, the second display sub-area A2 can be set above the first display sub-area A1, or as Figure 1f shown, the second display sub-area A2 can be set on the left side of the first display sub-area A1, which is not limited here.

[0071] In addition, in specific implementation, in the display substrate provided by the embodiment of the present invention, the shape of the second display sub-area can be a regular shape, such as a rectangle or a circle, etc. Of course, it can also be an irregular shape, which can be specifically designed according to the shape of the components arranged in the second display sub-area, and is not limited here.

[0072] Optionally, in the display substrate provided by the embodiments of the present invention, the pixel distribution density of the second display sub-region is generally set to 1 / 2 to 1 / 8 of the pixel distribution density of the first display sub-region. In specific implementation, the pixel distribution density within the second display sub-region is determined according to the components to be arranged within the second display sub-region and the display requirements, and is not limited herein. For example, taking the case of arranging a camera within the second display sub-region as an example, when the pixel distribution density is too large, good display effects can be ensured, but the camera clarity is affected; when the pixel distribution density is too small, high camera clarity can be ensured, but the display is affected.

[0073] In specific implementation, based on the resolution capabilities that the current display substrate can achieve, generally, the pixel distribution density of the second display sub-region is not lower than 1 / 4 of the pixel distribution density of the first display sub-region. For example, the pixel distribution density of the second display sub-region is approximately 1 / 2, 1 / 3, or 1 / 4 of the pixel distribution density of the first display sub-region. Of course, when the resolution of the display substrate can be made higher, the ratio of the pixel distribution density of the second display sub-region to the pixel distribution density of the first display sub-region can be set smaller.

[0074] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 3 to 7 shown, the second display sub-region A2 includes a plurality of first sub-pixels 1, a plurality of second sub-pixels 2, and a plurality of third sub-pixels 3; the centers of the sub-pixels of the same color are evenly distributed. That is, the centers of the first sub-pixels 1 are evenly distributed, the centers of the second sub-pixels 2 are evenly distributed, and the centers of the third sub-pixels 2 are evenly distributed. This ensures the uniformity of the display.

[0075] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 3 to 7 shown, the sub-pixels of the same color are arranged at equal intervals along the row direction, and the sub-pixels of the same color are arranged at equal intervals along the column direction.

[0076] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 3 to 5 , Figure 7 shown, the sub-pixels of the same color in adjacent rows are arranged in a staggered manner, and the center distance between two adjacent sub-pixels of the same color in the same row is equal to the center distance of the adjacent sub-pixel of the same color in the adjacent row. Taking Figure 4 as an example, within the second display sub-region A2, the first first sub-pixel 1 in the second row is located on the center connection line of the first first sub-pixel 1 and the second first sub-pixel 1 in the first row.

[0077] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 3 to 5 , Figure 7As shown, the sub-pixels of the same color in adjacent columns are arranged in a staggered manner, and the center distance between two adjacent sub-pixels of the same color in the same column is equal to the center distance of the sub-pixel of the same color adjacent to it in the adjacent column. Taking Figure 4 as an example, in the second display sub-region A2, the first first sub-pixel 1 in the first column is located on the center connection line of the first first sub-pixel 1 and the second first sub-pixel 1 in the second column.

[0078] It should be noted that due to process conditions or other factors such as the setting of wiring or vias, there may be some deviations. Therefore, as long as the positions and relative position relationships of the sub-pixels generally meet the above conditions, they all fall within the protection scope of the present invention.

[0079] Optionally, in the display substrate provided in the embodiment of the present invention, as Figures 2 to 7 shown, a first sub-pixel 01, a second sub-pixel 02, and a third sub-pixel 03 are arranged in the second display sub-region A2. Among them, the first sub-pixel 01 is evenly distributed in the second display sub-region A2, the second sub-pixel 02 is evenly distributed in the second display sub-region A2, and the third sub-pixel 03 is evenly distributed in the second display sub-region A2.

[0080] Optionally, in the display substrate provided in the embodiment of the present invention, as Figures 3 to 7 shown, along the row direction, the first sub-pixel 01, the second sub-pixel 02, and the third sub-pixel 03 are evenly distributed.

[0081] Optionally, in the display substrate provided in the embodiment of the present invention, as Figures 2 to 7 shown, the first display sub-region A1 includes a plurality of adjacent first pixel units 10 and second pixel units 20; among them, the first pixel unit 10 includes a first sub-pixel 1 and a second sub-pixel 2, and the second pixel unit 20 includes a third sub-pixel 3 and a second sub-pixel 2. When displaying, the number of pixels in the first display sub-region A1 is equal to the sum of the number of the first pixel units 10 and the number of the second pixel units 20. That is, the pixels in the first display sub-region A1 are arranged in a Pentile arrangement, and when displaying, the pixel units can achieve a resolution higher than the physical resolution by borrowing sub-pixels in adjacent pixel units.

[0082] The second display sub-region A2 includes a plurality of third pixel units 30. The third pixel unit 30 includes a first sub-pixel 1 and a third sub-pixel 3 that are adjacent to each other in the same row, and a second sub-pixel 2 that is offset from both the first sub-pixel 1 and the third sub-pixel 3. Among two adjacent third pixel units 30 in the row direction, the first sub-pixel 1 and the third sub-pixel 3 in one third pixel unit 30 are arranged in the same row as the second sub-pixel 2 in the other third pixel unit 30. When displaying, the number of pixels in the second display sub-region A2 is equal to the number of third pixel units 30. That is, the physical resolution of the pixels in the second display sub-region A2 is its display resolution. Moreover, in the second display sub-region A2, the three sub-pixels in the third pixel unit 30 are arranged in a triangular shape, and among two adjacent third pixel units 30 in the row direction, one is an inverted triangle and the other is an upright triangle, so as to avoid having more sub-pixels in some rows and fewer sub-pixels in some rows in the second display sub-region A2, and avoid uneven display.

[0083] In specific implementation, in the display panel provided by the embodiment of the present invention, the adjacent arrangement of two sub-pixels means that there are no other sub-pixels between the two sub-pixels.

[0084] It should be noted that, in the display panel provided by the embodiment of the present invention, due to the spatial limitation at the edge of the display sub-region, the arrangement of the sub-pixels in the first display sub-region and the arrangement of the sub-pixels in the second display sub-region mainly refer to those inside the display sub-region. There may be some differences in the arrangement of the sub-pixels at the edge of the display sub-region from those in other regions, which are not defined herein.

[0085] In specific implementation, the first sub-pixel, the second sub-pixel, and the third sub-pixel are generally one of a red sub-pixel, a green sub-pixel, and a blue sub-pixel respectively. Optionally, in the display substrate provided by the embodiment of the present invention, the second sub-pixel is a green sub-pixel, the first sub-pixel is a red or blue sub-pixel, and the third sub-pixel is a blue or red sub-pixel.

[0086] Optionally, in the display substrate provided by the embodiment of the present invention, as Figures 2 to 7 shown, within the second display sub-region A2, the sub-pixels of the third pixel units 30 in the same column are arranged in the same manner. So that in the row direction, the arrangement of the third pixel units 30 in each row is the same, ensuring the uniformity of display.

[0087] Optionally, in the display substrate provided by the embodiment of the present invention, as Figures 2 to 7As shown, in the third pixel unit 30, the center line connecting the second sub-pixel 2 and the first sub-pixel 1 is equal to the center line connecting the second sub-pixel 2 and the third sub-pixel 3. That is, in the third pixel unit 30, the center of the second sub-pixel 2, the center of the first sub-pixel 1, and the center of the third sub-pixel 3 form an isosceles triangle. Thus, it is ensured that the pixel emission center of the third pixel unit 30 is at the center of the isosceles triangle.

[0088] It should be noted that in the display panel provided by the embodiments of the present invention, the center of the sub-pixel refers to the center of the light-emitting area of the sub-pixel. Taking an OLED display panel as an example, a sub-pixel generally includes a stacked structure composed of an anode layer, a light-emitting layer, and a cathode layer. Among them, the light-emitting area corresponding to the stacked structure during display is the light-emitting area of the sub-pixel.

[0089] In specific implementation, the distance between the center of the second sub-pixel and the center of the first sub-pixel and the distance between the center of the second sub-pixel and the center of the third sub-pixel may not be exactly the same. In actual processes, due to process condition limitations or other factors such as the setting of wiring or vias, there may also be some deviations. Therefore, as long as the shapes, positions, and relative position relationships of the sub-pixels generally meet the above conditions, they all fall within the protection scope of the present invention.

[0090] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 2 to 5 、 Figure 7 shown, among the third pixel units 30 adjacent in the row direction, sub-pixels of the same color are not adjacent. That is, among two adjacent third pixel units 30 in the row direction, the first pixel 1 in one third pixel unit 30 and the first sub-pixel 1 in the other third pixel unit 30 are not adjacent. This avoids color deviation due to the same color of adjacent columns of sub-pixels in the second display sub-region A2.

[0091] In specific implementation, in the display substrate provided by the embodiments of the present invention, as Figures 2 to 7 shown, the first pixel unit 10 and the second pixel unit 20 in the first display sub-region A1 can be arranged in any Pentile arrangement, which is not limited herein.

[0092] For example, in the display substrate provided by the embodiments of the present invention, as Figure 2 and Figure 3 shown, in the first display sub-region A1, the first pixel unit 10 and the second pixel unit 20 are alternately arranged along the column direction, and the first pixel unit 10 and the second pixel unit 20 are alternately arranged along the row direction; and in the first pixel unit 10, the second sub-pixel 2 and the first sub-pixel 1 are arranged in the same row; in the second pixel unit 20, the second sub-pixel 2 and the third sub-pixel 3 are arranged in the same row; and along the row direction, the second sub-pixel 2 in the first pixel unit 10 and the second sub-pixel 2 in the second pixel unit 20 are not adjacent.

[0093] Alternatively, optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, in the first display sub-region A1, the first pixel units 10 and the second pixel units 20 are arranged alternately in the column direction, and the first pixel units 10 and the second pixel units 20 are arranged alternately in the row direction;

[0094] In the first pixel unit 10, the second sub-pixels 2 are arranged staggeredly with respect to the first sub-pixels 1; in the second pixel unit 20, the second sub-pixels 2 are arranged in the same row as the third sub-pixels 3; and among the first pixel unit 10 and the second pixel unit 20 adjacent in the row direction, the two second sub-pixels 2 are not adjacent;

[0095] Taking the first pixel unit 10 and the second pixel unit 20 adjacent in the column direction as a pixel group 100, within the pixel group 100, the second sub-pixels 2 in the first pixel unit 10 and the second sub-pixels 2 in the second pixel unit 20 are located in the same column. That is, the adjacent two rows of pixel units are staggered by half a column in the column direction.

[0096] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 6 and Figure 7 shown, the sub-pixels in the second display sub-region A2 and some of the sub-pixels in the first display sub-region A1 are located in the same row or in the same column. That is, it is equivalent to that the sub-pixels in the second display sub-region A2 and the sub-pixels in the first display sub-region A1 are corresponding in the row direction or in the column direction, and are not arranged in a staggered row or a staggered column, so as to ensure that the sub-pixels in the second display sub-line region A2 and the sub-pixels in the first display sub-region A1 are consistent in the row direction or in the column direction, which is beneficial to the wiring of the display substrate.

[0097] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 6 and Figure 7 shown, the second sub-pixels 2 in the second display sub-region A2 and the second sub-pixels 2 in the first display sub-region A1 are located in the same column. Thus, it is ensured that the second sub-pixels 2 in the second display sub-region A2 and the second sub-pixels 2 in the first display sub-region A1 are consistent in the column direction. And, but since in this display substrate, the second sub-pixel 2 is the light-emitting pixel center of the pixel unit, therefore, it can be ensured that the light-emitting pixel centers in the second display sub-region and the light-emitting pixel centers in the first display sub-region are consistent in the row direction.

[0098] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 6 and Figure 7As shown, the first sub-pixel 1 in the second display sub-region A2 and the first sub-pixel 1 in the first display sub-region A1 are in the same column. This ensures that the first sub-pixel 1 in the second display sub-region A2 and the first sub-pixel 1 in the first display sub-region A1 are aligned in the column direction.

[0099] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 6 and Figure 7 shown, the third sub-pixel 3 in the second display sub-region A2 and the third sub-pixel 3 in the first display sub-region A1 are in the same column. This ensures that the third sub-pixel 3 in the second display sub-region A2 and the third sub-pixel 3 in the first display sub-region A1 are aligned in the column direction.

[0100] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, the distance between two adjacent first sub-pixels 1 in the first display sub-region A1 along the column direction is equal to the distance between two adjacent first sub-pixels 1 in the second display sub-region A2 along the column direction;

[0101] The distance between two adjacent third sub-pixels 3 in the first display sub-region A1 along the column direction is equal to the distance between two adjacent third sub-pixels 3 in the second display sub-region A2 along the column direction;

[0102] In the first display sub-region A1, two adjacent second sub-pixels 2 along the column direction form a second sub-pixel group 200; the distance between two adjacent second sub-pixel groups 200 in the first display sub-region A1 along the column direction is equal to the distance between two adjacent second sub-pixels 2 in the second display sub-region A2 along the column direction.

[0103] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, the distribution density of the first sub-pixels 1 in the second display sub-region A2 in the row direction is approximately 1 / 2 of the distribution density of the first sub-pixels 1 in the first display sub-region A1 in the row direction. Of course, it can also be other ratios, such as 1 / 3, 1 / 4, etc., which are not limited herein.

[0104] The distribution density of the third sub-pixels 3 in the second display sub-region A2 in the row direction is approximately 1 / 2 of the distribution density of the third sub-pixels 3 in the first display sub-region A1 in the row direction. Of course, it can also be other ratios, such as 1 / 3, 1 / 4, etc., which are not limited herein.

[0105] The distribution density of the second sub-pixels 2 in the second display sub-region A2 in the row direction is approximately 1 / 4 of the distribution density of the second sub-pixels 2 in the first display sub-region A1 in the row direction. Of course, it can also be other ratios, such as 1 / 6, 1 / 9, etc., which are not limited herein.

[0106] It should be noted that the row direction here is described in units of one row of sub-pixels. In addition, the density ratios provided in the embodiments of the present invention are all approximate ratio ranges, and in specific implementations, the density ratios may not be integers.

[0107] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, within the first display sub-region A1, the light-emitting area of the second sub-pixel 2 is smaller than that of the first sub-pixel 1, and the light-emitting area of the second sub-pixel 2 is smaller than that of the third sub-pixel 3. This is because within the first display sub-region A1, the number of the first sub-pixels 1 is the same as that of the third sub-pixels 3, and the number of the second sub-pixels 2 is twice that of the first sub-pixels 1. Therefore, the light-emitting area of the second sub-pixel 2 can be made smaller.

[0108] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, two adjacent second sub-pixels 2 along the column direction are symmetric about the row direction.

[0109] Specifically, in the display substrate provided by the embodiments of the present invention, within the first display sub-region, there are no restrictions on the shapes of the first sub-pixel, the second sub-pixel, and the third sub-pixel. They can be regular shapes or irregular shapes. In specific implementations, generally, regular shapes are easier to implement from a process perspective.

[0110] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, within the first display sub-region A1, the shapes of the first sub-pixel 1 and the third sub-pixel 3 are the same, and the combined shape of two adjacent second sub-pixels 2 along the column direction is the same as that of the first sub-pixel 1 or the third sub-pixel 3.

[0111] It should be noted that being the same in shape means that the shapes of the light-emitting regions of the sub-pixels are similar, but the areas can be the same or different. The light-emitting area of the sub-pixel can be set according to the light-emitting efficiency of the sub-pixel, and there is no limitation here.

[0112] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, within the first display sub-region A1, the shapes of both the first sub-pixel 1 and the third sub-pixel 3 are hexagons, and the shape of the second sub-pixel 2 is a pentagon.

[0113] It should be noted that in the display panel provided by the embodiments of the present invention, the shape of the sub-pixel refers to the shape of the light-emitting region of the sub-pixel.

[0114] In specific implementations, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7As shown, within the first display sub-region A1, when the second sub-pixel 2 is a green sub-pixel, the luminous areas of the two second sub-pixels 2 are smaller than the luminous area of one first sub-pixel 1, and the luminous areas of the two second sub-pixels 2 are smaller than the area of one third sub-pixel 3. This is because the luminous efficiency of the green sub-pixel is higher than that of other color sub-pixels.

[0115] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, within the second display sub-region A2, the luminous areas of the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 are the same.

[0116] Of course, in specific implementation, due to the different luminous efficiencies of different sub-pixels, within the second display sub-region A2, the luminous areas of the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 may also be different, which is not limited herein.

[0117] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, within the second display sub-region A2, the shapes of the first sub-pixel 1, the second sub-pixel 2, and the third sub-pixel 3 are the same.

[0118] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, within the second display sub-region A2, the luminous area of the second sub-pixel 2 is greater than or equal to the luminous area of the second sub-pixel 2 within the first display sub-region A1.

[0119] Optionally, in the display substrate provided by the embodiments of the present invention, as Figures 4 to 7 shown, the first sub-pixel 1 within the second display sub-region A2 has the same shape as the first sub-pixel 1 within the first display sub-region A1;

[0120] The third sub-pixel 3 within the second display sub-region A2 has the same shape as the third sub-pixel 3 within the first display sub-region A1.

[0121] Based on the same inventive concept, the embodiments of the present invention also provide another display panel. As Figures 1a to 1f shown, the display area of the display substrate includes a first display sub-region A1 and a second display sub-region A2;

[0122] The pixel distribution density within the first display sub-region A1 is greater than the pixel distribution density within the second display sub-region A2; the first display sub-region A1 includes: a plurality of adjacent first pixel units 10 and second pixel units 20; the first pixel unit 10 includes a first sub-pixel 1 and a second sub-pixel 2, and the second pixel unit 20 includes a third sub-pixel 3 and a second sub-pixel 2;

[0123] In the first display sub-region A1, the first pixel units 10 and the second pixel units 20 are alternately arranged in the column direction, and the first pixel units 10 and the second pixel units 20 are alternately arranged in the row direction;

[0124] As Figure 2 shown, the second display sub-region A2 includes a plurality of third pixel units 30, and the third pixel units 30 include a plurality of sub-pixels;

[0125] The third pixel unit 30 includes a first sub-pixel 1, a second sub-pixel 2, and a third sub-pixel. The light-emitting area of the second sub-pixel 2 in the second display sub-region A2 is larger than the light-emitting area of the second sub-pixel 2 in the first display sub-region A1.

[0126] For the display substrate provided by the embodiment of the present invention, the display area is set as the first display sub-region A1 with a large pixel distribution density (i.e., high resolution) and the second display sub-region A2 with a small pixel distribution density (i.e., low resolution). Since the pixel distribution density in the second display sub-region A2 is small, components such as cameras, sensors, and speakers can be arranged in the second display sub-region A2. That is, the screen-to-body ratio of the display substrate is improved by reducing the local pixel distribution density to increase the screen transmittance. And by arranging the third pixel units in the second display sub-region A2 and increasing the light-emitting area of at least some sub-pixels in the second display sub-region A2, dark lines at the boundary between the second display sub-region A2 and the first display sub-region A1 can be avoided, and the transmittance of the second display sub-region A2 can also be improved.

[0127] Optionally, in the display substrate provided by the embodiment of the present invention, as Figure 6 shown, the second display sub-region A2 has multiple columns of sub-pixels. At least two columns of sub-pixels in the second display sub-region A2 can be aligned with the corresponding two columns of sub-pixels in the first display sub-region A1, which can improve the light emission uniformity between the second display sub-region A2 and the first display sub-region A1; and in the row direction, there can be at least one column of sub-pixels in the first display sub-region A1 between two adjacent columns of sub-pixels in the second display sub-region A2 to ensure that the pixel distribution density in the first display sub-region A1 is greater than the pixel distribution density in the second display sub-region A2; where the row direction is perpendicular to the column direction. In this application, the meaning of "perpendicular" is that the included angle between the row direction and the column direction is between 80° and 100°.

[0128] Optionally, in the display substrate provided by the embodiment of the present invention, as Figure 2 shown, the third pixel units in the second display sub-region A2 can be arranged in multiple rows and columns that are parallel to each other. The third pixel units in adjacent rows are aligned, and the third pixel units in adjacent columns are aligned, which can maintain the light emission uniformity of the second display sub-region A2.

[0129] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 2 shown, within the same row of the second display sub-region A2, for any two adjacent third pixel units: the bisectors of the first sub-pixel 1 and the third sub-pixel 3 of one third pixel unit pass through the second sub-pixel 2 of the other third pixel unit. The second sub-pixels 2 of different third pixel units in the same column are located on the same straight line. The second sub-pixel 2 can specifically be a green sub-pixel. Since the human eye is most sensitive to green, arranging the sub-pixels in this way can improve the pixel distribution uniformity.

[0130] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 5 shown, among the four sub-pixels closest to the second display sub-region A2, the first sub-pixel 1 and the third sub-pixel 3 can be located on both sides, and the two second sub-pixels 2 are located in the middle. Moreover, the center of each second sub-pixel 2 is connected to the centers of the first sub-pixel 1 and the third sub-pixel 3 to form a triangle, and the formed triangle can avoid the appearance of horizontal bright and dark stripes.

[0131] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 4 shown, among the three adjacent columns of sub-pixels in the second display sub-region A2, the middle column can be the second sub-pixel 2, and the two columns on both sides can be sub-pixel columns in which the first sub-pixel 1 and the third sub-pixel 3 are alternately arranged. In the two columns of sub-pixels on both sides, the first sub-pixel 1 and the third sub-pixel 3 can be located on the same straight line in the row direction, which can avoid color deviation in the column direction.

[0132] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 3 shown, the first display sub-region A1 has a plurality of second sub-pixel columns extending in the column direction, and the sub-pixel column located at the edge of the first display sub-region A1 is the second sub-pixel column. The sub-pixel adjacent to the second sub-pixel column at the edge of the first display sub-region A1 in the second display sub-region A2 is the first sub-pixel 1 or the third sub-pixel 3 to ensure normal light emission in the edge region between the first display sub-region A1 and the second display sub-region A2.

[0133] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 4 shown, the light-emitting area of the second sub-pixel 2 in the first display sub-region A1 can be smaller than the light-emitting area of the second sub-pixel 2 in the second display sub-region A2; and the size of the second sub-pixel 2 in the first display sub-region A1 in the column direction is less than half of the size of the second sub-pixel 2 in the second display sub-region A2 in the column direction, which can improve the light-emitting efficiency of the second sub-pixel 2.

[0134] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 2As shown, the first display sub-region A1 includes multiple columns of sub-pixels. Some of the columns can be the second sub-pixels 2, and the remaining columns can be arranged with the first sub-pixels 1 and the third sub-pixels 3 alternatingly. Moreover, the first sub-pixels 1 and the third sub-pixels 3 are on the same straight line in the row direction to maintain the luminous uniformity of the first display sub-region A1.

[0135] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 7 shown, the shapes of the second sub-pixels 2 in the first display sub-region A1 and the second display sub-region A2 can be different, which can avoid the diffraction problem in the second display sub-region A2.

[0136] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 3 shown, the number of the second sub-pixels 2 in the first display sub-region A1 is more than that of the first sub-pixels 1 or the third sub-pixels 3. In a column of sub-pixels with the first sub-pixels 1 and the third sub-pixels 3 arranged alternately, the adjacent first sub-pixel 1 and the third sub-pixel 3 respectively form a triangle with the second sub-pixels 2 in the adjacent left or right column, and the formed triangle can avoid the appearance of horizontal bright and dark stripes.

[0137] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 3 shown, within the first display sub-region A1, the distance between the centers of adjacent second sub-pixel groups in a column of sub-pixels is equal, which can ensure uniform light emission. In the first display sub-region, two adjacent second sub-pixels along the column direction form a second sub-pixel group.

[0138] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 3 shown, the multiple columns of sub-pixels in the first display sub-region A1 respectively have the first sub-pixels 1 and the third sub-pixels 3 arranged alternately. Among them, two adjacent columns of sub-pixels are arranged in a staggered manner, and the first sub-pixels 1 and the third sub-pixels 3 are on the same straight line in the row direction, which can ensure uniform light emission.

[0139] Optionally, in the display substrate provided by the embodiments of the present invention, the first sub-pixel 1 can emit blue light and is thus a blue sub-pixel, the second sub-pixel 2 can emit green light and is thus a green sub-pixel, and the third sub-pixel 3 emits red light and is thus a red sub-pixel.

[0140] Based on the same inventive concept, the embodiments of the present invention also provide another display panel. As Figures 1a to 1f shown, the display area of the display substrate includes a first display sub-region A1 and a second display sub-region A2;

[0141] The pixel distribution density within the first display sub-region A1 is greater than that within the second display sub-region A2; the first display sub-region A1 includes: a plurality of adjacent first pixel units 10 and second pixel units 20; the first pixel unit 10 includes a first sub-pixel 1 and a second sub-pixel 2, and the second pixel unit 20 includes a third sub-pixel 3 and a second sub-pixel 2;

[0142] Within the first display sub-region A1, the first pixel units 10 and the second pixel units 20 are arranged alternately in the column direction, and the first pixel units 10 and the second pixel units 20 are arranged alternately in the row direction;

[0143] As Figure 4 shown, both the first display sub-region A1 and the second display sub-region A2 include multiple columns of sub-pixels that are parallel to each other, and a column of sub-pixels in the first display sub-region A1 is aligned with a corresponding column of sub-pixels in the second display sub-region A2;

[0144] The third pixel unit 30 includes a first sub-pixel 1, a second sub-pixel 2, and a third sub-pixel, and the light-emitting area of the second sub-pixel 2 in the second display sub-region A2 is greater than the light-emitting area of the second sub-pixel 2 in the first display sub-region A1.

[0145] The display substrate provided by the embodiment of the present invention sets the display area as the first display sub-region A1 with a large pixel distribution density (i.e., high resolution) and the second display sub-region A2 with a small pixel distribution density (i.e., low resolution). Since the pixel distribution density within the second display sub-region A2 is small, components such as cameras, sensors, and speakers can be arranged within the second display sub-region A2, that is, by reducing the local pixel distribution density to increase the screen light transmittance to improve the screen-to-body ratio of the display substrate. And by increasing the light-emitting area of at least some sub-pixels within the second display sub-region A2, the appearance of dark streaks at the boundary between the second display sub-region A2 and the first display sub-region A1 can be avoided. By aligning a column of sub-pixels in the first display sub-region A1 with a corresponding column of sub-pixels in the second display sub-region A2, the light emission uniformity between the first display sub-region A1 and the second display sub-region A2 can be improved.

[0146] Optionally, in the display substrate provided by the embodiment of the present invention, as Figure 2 shown, the connection lines between the centers of adjacent first sub-pixels 1, second sub-pixels 2, and third sub-pixels 3 within the second display sub-region A2 form an isosceles triangle, which can avoid the appearance of horizontal dark and bright streaks within the second display sub-region A2.

[0147] Optionally, in the display substrate provided by the embodiments of the present invention, two adjacent first sub-pixels 1 and two second sub-pixels 2 within the second display sub-region A2 form a rectangle, and the third sub-pixel 3 is located at the center of the rectangle, which can improve the luminous uniformity of the second display sub-region A2.

[0148] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 3 shown, the second sub-pixels 2 in the second display sub-region A2 are arranged in multiple rows, and the second sub-pixels 2 in adjacent rows are arranged in a staggered manner. Specifically, the second sub-pixel 2 can be a green sub-pixel. Since the human eye is most sensitive to green, such an arrangement can maintain luminous uniformity.

[0149] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 4 shown, the second display sub-region A2 includes multiple sub-pixel columns extending in the column direction. In the row direction, there is at least one column of sub-pixels in the first display sub-region A1 between two adjacent columns of sub-pixels in the second display sub-region A2, which can reduce the pixel density and improve the transmittance.

[0150] Optionally, in the display substrate provided by the embodiments of the present invention, the first display sub-region A1 includes a first sub-pixel 1, a second sub-pixel 2, and a third sub-pixel 3; the first display sub-region A1 has multiple second sub-pixel rows extending in the row direction, and the sub-pixel rows located at the edge of the first display sub-region A1 are second sub-pixel rows.

[0151] Optionally, in the display substrate provided by the embodiments of the present invention, the first sub-pixel 1 within the first display sub-region A1 forms a triangle with the second sub-pixel 2 and the third sub-pixel 3 adjacent to one side in the row direction, and the first sub-pixel 1 can also form a triangle with the second sub-pixel 2 and the third sub-pixel 3 adjacent to the other side in the row direction, which can improve the resolution.

[0152] Optionally, in the display substrate provided by the embodiments of the present invention, as Figure 2 shown, within the first display sub-region A1, the first sub-pixels 1 and the third sub-pixels 3 closest to a row of second sub-pixels 2 on one side in the column direction are arranged alternately in the row direction, which can ensure luminous uniformity.

[0153] Optionally, in the display substrate provided by the embodiments of the present invention, one row of first sub-pixels 1 and one row of third sub-pixels 3 within the first display sub-region A1 are aligned and arranged, which can ensure the formation of uniformly distributed pixels.

[0154] Optionally, in the display substrate provided by the embodiments of the present invention, the shapes of the effective light-emitting regions of the second sub-pixels in the second display sub-region A2 and the first display sub-region A1 can be different, which can reduce diffraction.

[0155] Optionally, in the display substrate provided in the embodiments of the present invention, the first sub-pixel 1 can emit blue light and is thus a blue sub-pixel, the second sub-pixel 2 can emit green light and is thus a green sub-pixel, and the third sub-pixel 3 emits red light and is thus a red sub-pixel.

[0156] Based on the same inventive concept, the embodiments of the present invention also provide a display device, including any one of the above-mentioned display substrates provided in the embodiments of the present invention. The display device may be: a mobile phone, a tablet computer, a television, a monitor, a laptop computer, a digital photo frame, a navigator, or any other product or component with a display function. For the implementation of the display device, reference may be made to the embodiments of the above-mentioned display substrate, and the repeated parts will not be elaborated.

[0157] Based on the same inventive concept, the embodiments of the present invention also provide a high-precision metal mask for manufacturing any one of the above-mentioned display substrates provided in the embodiments of the present invention. The high-precision metal mask includes: a plurality of opening regions, and the opening regions correspond to the shapes and positions of the first sub-pixel, the second sub-pixel, or the third sub-pixel.

[0158] In specific implementation, the sub-pixel generally includes an anode layer, a light-emitting layer, and a cathode layer, and the light-emitting layer is generally vapor-deposited using the above-mentioned high-precision metal mask. Taking Figure 7 the shown display substrate as an example, in the high-precision metal mask for forming the first sub-pixel, as Figure 8 shown, the opening region 01 corresponds to the shape and position of the light-emitting layer of the first sub-pixel 1 in the display substrate. And due to process limitations, the area of the opening region 01 is generally larger than the area of the corresponding light-emitting layer. The principles of the high-precision metal mask for forming the second sub-pixel and the high-precision metal mask for forming the third sub-pixel are similar to that of the first sub-pixel, and will not be elaborated here.

[0159] Based on the same inventive concept, the embodiments of the present invention also provide a display method for any one of the above-mentioned display panels, as Figure 9 shown, including:

[0160] S901. Receive original image data;

[0161] S902. For the pixels in the first display sub-region, display them according to the gray-scale values of the corresponding pixels in the original image data; for the pixels in the second display sub-region, determine the number N of the corresponding pixels of a pixel in the original image data according to the ratio of the pixel distribution density of the first display sub-region to the pixel distribution density of the second display sub-region; and display them according to the gray-scale values of one or more pixels among the N corresponding pixels of the pixel in the original image data according to the position of the pixel.

[0162] In specific implementation, according to the aforementioned pixel distribution density formula, when the ratio of the pixel distribution density of the first display sub-region to that of the second display sub-region is n, one pixel in the second display sub-region corresponds to 4 pixels in the original image data, that is, N = n * n.

[0163] Optionally, in the display method provided by the embodiments of the present invention, for the pixels in the second display sub-region, display is performed according to the average gray level value of multiple pixels among the N pixels corresponding to the position of the pixel in the original image data. For example, N = 4, that is, each pixel in the second display sub-region corresponds to 4 pixels in the original image data. Then, for each pixel in the second display sub-region, display can be performed according to the average gray level value of k pixels among the 4 pixels corresponding to it in the original image data, where k = 2, 3, or 4. Taking k = 4 as an example, assuming that the pixels in the second display sub-region include a first sub-pixel, a second sub-pixel, and a third sub-pixel, then when displaying, the gray level value X1 corresponding to the first sub-pixel = (x1 + x2 + x3 + x4) / 4, where x1 to x4 respectively represent the gray level values of the first sub-pixels of the 4 pixels corresponding to the pixel in the second display sub-region in the original image data; similarly, when displaying, the gray level value Y1 corresponding to the second sub-pixel = (y1 + y2 + y3 + y4) / 4, where y1 to y4 respectively represent the gray level values of the second sub-pixels of the 4 pixels corresponding to the pixel in the second display sub-region in the original image data; when displaying, the gray level value Z1 corresponding to the third sub-pixel = (z1 + z2 + z3 + z4) / 4, where z1 to z4 respectively represent the gray level values of the third sub-pixels of the 4 pixels corresponding to the pixel in the second display sub-region in the original image data.

[0164] Optionally, in the display panel provided by the embodiments of the present invention, for the pixels in the second display sub-region, display is performed according to the gray level value of the pixel with the highest brightness among the N pixels corresponding to the position of the pixel in the original image data.

[0165] Optionally, in the display panel provided by the embodiments of the present invention, for the pixels in the second display sub-region, display is performed according to the gray level value of the pixel with the middle brightness value among the N pixels corresponding to the position of the pixel in the original image data.

[0166] Optionally, in the display panel provided by the embodiments of the present invention, for the pixels in the second display sub-region, display is performed according to the N pixels corresponding to the position of the pixel in the original image data and the relative position relationship between the pixel in the second display sub-region and the N pixels in the original image data.

[0167] Taking N = 4 as an example, that is, each pixel in the second display sub-region corresponds to 4 pixels in the original image data. Assuming that the pixels in the second display sub-region include the first sub-pixel, the second sub-pixel, and the third sub-pixel, then when displaying, the gray scale value X1 corresponding to the first sub-pixel is X1 = (k1 * x1 + k2 * x2 + k3 * x3 + k4 * x4) / 4, where x1 to x4 respectively represent the gray scale values of the first sub-pixels in the 4 pixels corresponding to the pixel in the second display sub-region in the original image data; similarly, when displaying, the gray scale value Y1 corresponding to the second sub-pixel is Y1 = (k1 * y1 + k2 * y2 + k3 * y3 + k4 * y4) / 4, where y1 to y4 respectively represent the gray scale values of the second sub-pixels in the 4 pixels corresponding to the pixel in the second display sub-region in the original image data; when displaying, the gray scale value Z1 corresponding to the third sub-pixel is Z1 = (k1 * z1 + k2 * z2 + k3 * z3 + k4 * z4) / 4, where z1 to z4 respectively represent the gray scale values of the third sub-pixels in the 4 pixels corresponding to the pixel in the second display sub-region in the original image data. Among them, k1 to k4 are weight coefficients, which are determined by the distances between the position of the pixel in the second display region and the pixels in the 4 corresponding pixels in the original image data. The greater the distance, the smaller the weight coefficient.

[0168] Optionally, in the display panel provided by the embodiments of the present invention, for the pixels in the second display sub-region, they are displayed according to the gray scale value of one of the N pixels corresponding to the position of the pixel in the original image data. The display principle complies with the quantification of the human eye visual system, there will be no flicker, there is no need to re-design the IC, and the cost is low.

[0169] Optionally, in the display method provided by the embodiments of the present invention, when the ratio of the pixel distribution density of the first display sub-region to the pixel distribution density of the second display sub-region is n, n is an integer greater than 1;

[0170] Each pixel in the second display region corresponds to n * n pixels arranged in a matrix in the original image data.

[0171] In specific implementation, generally n = 2 is taken, that is, when the pixel distribution density of the first display sub-region is 2 times that of the second display sub-region. Of course, according to actual applications, n can also take other values, which are not limited herein.

[0172] Specifically, taking n = 2 as an example, as Figure 10 shown, each pixel in the second display region corresponds to 2 rows multiplied by 2 columns of pixels arranged in a matrix in the original image data, Figure 10 among which, the 4 pixels within a dotted line box are the pixels corresponding to one pixel in the second display region.

[0173] Optionally, in the display method provided by the embodiments of the present invention, each pixel in the second display area respectively selects one pixel at the same position among the corresponding n×n pixels in the original image data as the reference pixel, and each pixel in the second display area respectively performs display according to the gray scale value of its corresponding reference pixel.

[0174] Taking n = 2 as an example, as Figure 11a shown, each pixel in the second display area can respectively select the pixel at the position of the first row and the first column among the corresponding 2×2 pixels in the original image data as the reference pixel. Or, as Figure 11b shown, each pixel in the second display area can respectively select the pixel at the position of the first row and the second column among the corresponding 2×2 pixels in the original image data as the reference pixel. Or, as Figure 11c shown, each pixel in the second display area can respectively select the pixel at the position of the second row and the first column among the corresponding 2×2 pixels in the original image data as the reference pixel. As Figure 11d shown, each pixel in the second display area can respectively select the pixel at the position of the second row and the second column among the corresponding 2×2 pixels in the original image data as the reference pixel.

[0175] In specific implementation, in the display method provided by the embodiments of the present invention, each pixel in the second display area respectively performs display according to the gray scale value of its corresponding reference pixel. Specifically: the first sub-pixel performs display according to the gray scale value of the first sub-pixel in the corresponding reference pixel, the second sub-pixel performs display according to the gray scale value of the second sub-pixel in the corresponding reference pixel, and the third sub-pixel performs display according to the gray scale value of the third sub-pixel in the corresponding reference pixel.

[0176] In specific implementation, since the ratio of the pixel distribution density of the first display sub-area to the pixel distribution density of the second display sub-area may not be an integer. For example, when the ratio of the pixel distribution density of the first display sub-area to the pixel distribution density of the second display sub-area is m, where m = n + s, n is an integer greater than or equal to 1, and s is a decimal between 0 and 1. Each pixel in the second display area respectively corresponds to n×n pixels arranged in a matrix in the original image data; or, each pixel in the second display area respectively corresponds to n×(n + 1) pixels arranged in a matrix in the original image data; or, each pixel in the second display area respectively corresponds to (n + 1)×(n + 1) pixels arranged in a matrix in the original image data. The specific implementation principle is the same as the case of m = n above, and will not be elaborated here.

[0177] In the display method provided by the embodiments of the present invention, for the pixels in the first display sub-area, display is performed according to the gray scale value of the corresponding pixels in the original image data. The specific implementation can refer to the prior art and will not be described in detail here.

[0178] In specific implementation, in the display method provided by the embodiments of the present invention, the algorithm for obtaining the gray-scale value of each pixel according to the original image data can be integrated in an IC, an external CPU, a microprocessor, etc. Of course, it can also be a separately provided driver, which is connected to each pixel, and this is not limited herein.

[0179] In specific implementation, in the display method provided by the embodiments of the present invention, when the pixels on the display substrate are displayed according to the corresponding pixels in the original image data, in order to optimize the display effect, they generally need to be processed by an image processing module such as SPR, and processed by a Demura algorithm before being imaged on the display screen.

[0180] For the display substrate, its display method, display device, and high-precision metal mask provided by the embodiments of the present invention, the display area is set as a first display sub-area with a large pixel distribution density (i.e., high resolution) and a second display sub-area with a small pixel distribution density (i.e., low resolution). Since the pixel distribution density in the second display sub-area is small, components such as a camera, a sensor, and a receiver can be arranged in the second display sub-area, that is, the screen-to-body ratio of the display substrate is increased by reducing the local pixel distribution density to increase the screen light transmittance. And the sub-pixels are evenly distributed in the second display sub-area, which can ensure uniform brightness distribution in the second display sub-area.

[0181] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A display substrate, wherein a display area of the display substrate includes a first display sub-area and a second display sub-area, and is characterized in that: The pixel distribution density in the first display sub-area is greater than that in the second display sub-area; The first display sub-area includes: a plurality of adjacent first pixel units and second pixel units; the first pixel unit includes a first sub-pixel and a second sub-pixel, and the second pixel unit includes a third sub-pixel and a second sub-pixel; In the first display sub-area, the first pixel units and the second pixel units are alternately arranged in the column direction, and the first pixel units and the second pixel units are alternately arranged in the row direction; The second display sub-area includes a plurality of third pixel units, and the third pixel unit includes a plurality of sub-pixels; the first display sub-area is a normal display area, and the second display sub-area is an under-screen camera display area with a camera. A line connecting the centers of two sub-pixels in each first pixel unit is not parallel to the row direction and not parallel to the column direction, and a line connecting the centers of two sub-pixels in each second pixel unit is not parallel to the row direction and not parallel to the column direction; The third pixel unit includes a first sub-pixel, a second sub-pixel and a third sub-pixel. The light-emitting area of the second sub-pixel in the second display sub-area is larger than that of the second sub-pixel in the first display sub-area; the second sub-pixels of the third pixel units in the same column are located on the same straight line, the distance between any two adjacent second sub-pixels in the same column is the same, the distance between any two adjacent second sub-pixels in the same row is the same, and the first sub-pixel, the second sub-pixel and the third sub-pixel all have edges parallel to the column direction or the row direction.

2. The display substrate according to claim 1, wherein The second display sub-area has multiple columns of sub-pixels, and at least two columns of sub-pixels in the second display sub-area are aligned with corresponding two columns of sub-pixels in the first display sub-area; In the row direction, there is at least one column of sub-pixels of the first display sub-area between two adjacent columns of sub-pixels in the second display sub-area, and the row direction is perpendicular to the column direction.

3. The display substrate according to claim 1, wherein The third pixel units in the second display sub-area are arranged in multiple rows and multiple columns that are parallel to each other, and the third pixel units in adjacent rows are aligned, and the third pixel units in adjacent columns are aligned.

4. The display substrate according to claim 1, wherein, In the same row of the second display sub-area, in any two adjacent third pixel units: the bisectors of the first sub-pixel and the third sub-pixel of one third pixel unit in the row direction pass through the second sub-pixel of the other third pixel unit; In the same column of the second display sub-area, the second sub-pixels of different third pixel units are located on the same straight line.

5. The display substrate according to claim 4, wherein Among the four sub-pixels closest to each other in the second display sub-area, the first sub-pixel and the third sub-pixel are located on both sides, and the two second sub-pixels are located in the middle. The center of each second sub-pixel is connected to the centers of the first sub-pixel and the third sub-pixel to form a triangle.

6. The display substrate according to claim 4, wherein, Among three adjacent columns of sub-pixels in the second display sub-region, the middle column is the second sub-pixel, and the two columns on both sides are sub-pixel columns in which the first sub-pixel and the third sub-pixel are alternately arranged. Among the two columns of sub-pixels on both sides, the first sub-pixel and the third sub-pixel are on the same straight line in the row direction.

7. The display substrate according to any one of claims 4 to 6, characterized in that, The first display sub-region has a plurality of second sub-pixel columns extending in the column direction, and the sub-pixel column at the edge of the first display sub-region is the second sub-pixel column. The sub-pixel adjacent to the second sub-pixel column at the edge of the first display sub-region in the second display sub-region is the first sub-pixel or the third sub-pixel.

8. The display substrate according to claim 7, wherein, The size of the second sub-pixel of the first display sub-region in the column direction is less than half of the size of the second sub-pixel of the second display sub-region in the column direction.

9. The display substrate according to claim 7, characterized in that, The first display sub-region includes multiple columns of sub-pixels, among which some columns are the second sub-pixels, and the remaining columns are arranged with the first sub-pixels and the third sub-pixels alternately, and the first sub-pixel and the third sub-pixel are on the same straight line in the row direction.

10. The display substrate according to claim 1, 2, 3, 4, 5, 6, 8 or 9, characterized in that, The shapes of the second sub-pixels in the first display sub-region and the second display sub-region are different.

11. The display substrate according to claim 9, wherein, The number of second sub-pixels in the first display sub-region is more than the number of the first sub-pixels or the third sub-pixels. In a column of sub-pixels with the first sub-pixels and the third sub-pixels alternately arranged, the adjacent first sub-pixel and the third sub-pixel respectively form a triangle with the second sub-pixels in the adjacent left or right column.

12. The display substrate according to claim 1, 2, 3, 4, 5, 6, 8, 9 or 11, characterized in that, In the first display sub-region, the distance between the centers of adjacent second sub-pixel groups in a column of sub-pixels is equal; wherein, in the first display sub-region, two adjacent second sub-pixels along the column direction form a second sub-pixel group.

13. The display substrate according to claim 7, wherein The multiple columns of sub-pixels in the first display sub-region respectively have the first sub-pixels and the third sub-pixels alternately arranged, wherein two adjacent columns of sub-pixels are arranged in a staggered manner, and the first sub-pixel and the third sub-pixel are on the same straight line in the row direction.

14. The display substrate according to claim 2, 3, 4, 5, 6, 8, 9, 11 or 13, characterized in that, The first sub-pixel emits blue light, the second sub-pixel emits green light, and the third sub-pixel emits red light.

15. A display substrate, wherein the display area of the display substrate includes a first display sub-region and a second display sub-region, and is characterized in that: The pixel distribution density in the first display sub-region is greater than the pixel distribution density in the second display sub-region; Both the first display sub-region and the second display sub-region include multiple columns of sub-pixels that are parallel to each other, and a column of sub-pixels in the first display sub-region is aligned with a column of sub-pixels in the corresponding second display sub-region; The first display sub-region includes a plurality of first pixel units and a plurality of second pixel units; in the first display sub-region, two adjacent first pixel units each include the first sub-pixel and the second sub-pixel arranged in the same way, two adjacent second pixel units each include the second sub-pixel and the third sub-pixel arranged in the same way, two adjacent columns of first pixel units are not aligned, and two adjacent columns of second pixel units are not aligned; And, The line connecting the centers of two sub-pixels in each of the first pixel units is not parallel to the row direction and not parallel to the column direction, and the line connecting the centers of two sub-pixels in each of the second pixel units is not parallel to the row direction and not parallel to the column direction; The second display sub-region includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and the light-emitting area of the second sub-pixel in the second display sub-region is larger than the light-emitting area of the second sub-pixel in the first display sub-region.

16. The display substrate according to claim 15, characterized in that, The connecting lines of the centers of adjacent first sub-pixels, second sub-pixels, and third sub-pixels in the second display sub-region form an isosceles triangle.

17. The display substrate according to claim 16, wherein Two adjacent first sub-pixels and two adjacent second sub-pixels in the second display sub-region form a rectangle, and the third sub-pixel is located at the center of the rectangle.

18. The display substrate according to claim 16, wherein The second sub-pixels in the second display sub-region are arranged in multiple rows, and the second sub-pixels in adjacent rows are arranged in a staggered manner.

19. The display substrate according to claim 16, wherein, The second display sub-region includes a plurality of sub-pixel columns extending in the column direction. In the row direction, there is at least one column of sub-pixels in the first display sub-region between two adjacent columns of sub-pixels in the second display sub-region.

20. The display substrate according to any one of claims 16-19, characterized in that The first display sub-region has a plurality of second sub-pixel rows extending in the row direction, and the sub-pixel rows at the edge of the first display sub-region are the second sub-pixel rows.

21. The display substrate according to claim 20, wherein The first sub-pixel in the first display sub-region and the adjacent second sub-pixel and third sub-pixel on one side of the row direction form a triangle, and the first sub-pixel and the adjacent second sub-pixel and third sub-pixel on the other side of the row direction can also form a triangle.

22. The display substrate according to claim 20, wherein In the first display sub-region, the first sub-pixels and the third sub-pixels that are closest to a row of second sub-pixels on one side in the column direction are arranged alternately in the row direction.

23. The display substrate according to claim 20, wherein One row of first sub-pixels and one row of third sub-pixels adjacent in the first display sub-region are aligned and arranged.

24. The display substrate according to claim 15, 16, 17, 18, 19, 21, 22 or 23, characterized in that, The shapes of the effective light-emitting regions of the second sub-pixels in the second display sub-region and the first display sub-region are different.

25. The display substrate according to claim 16, 17, 18, 19, 21, 22 or 23, characterized in that The first sub-pixel emits blue light, the second sub-pixel emits green light, and the third sub-pixel emits red light.

26. A display device, characterized in that, Comprising a display substrate according to any one of claims 1-25.

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