WO2022253215A1

WO2022253215A1 - Display panel and display device

Info

Publication number: WO2022253215A1
Application number: PCT/CN2022/096182
Authority: WO
Inventors: 张庆; 陈彩琴
Original assignee: 维沃移动通信有限公司
Priority date: 2021-06-02
Filing date: 2022-05-31
Publication date: 2022-12-08
Also published as: CN113380143B; CN113380143A

Abstract

The present application belongs to the field of display panels, and in particular relates to a display panel. Disclosed are a display panel and a display device. The display panel comprises a first display region and a second display region that are arranged adjacent to each other. Sub-pixels in the first display region and the second display region form a plurality of pixel groups. Sub-pixels of at least one color in each pixel group are used as set sub-pixels. The set sub-pixels comprise first set sub-pixels and second set sub-pixels. The area of the first set sub-pixels is greater than the area of the second set sub-pixels. Among the pixel groups in the first display region, the proportion of the first set sub-pixels in the set sub-pixels gradually increases in the direction in which the pixel groups are gradually away from an adjacent boundary between the first display region and the second display region; and among the pixel groups in the second display region, the proportion of the second set sub-pixels in the set sub-pixels gradually increases in the direction in which the pixel groups are gradually away from the adjacent boundary.

Description

Display panels and display devices

Cross References to Related Applications

This application claims the priority of the Chinese patent application with the application number 202110617442.0 filed on June 2, 2021, and the title of the invention is "display panel and display device", which is fully incorporated into this application by reference.

technical field

The present application belongs to the field of display panels, and in particular relates to a display panel and a display device.

Background technique

With the requirement of screen-to-body ratio of electronic equipment, the camera under panel (CUP) came into being. Since the display screen in the CUP area needs to ensure high transmittance to meet the camera performance, the pixels in the CUP area are relatively large. Due to the smaller size of the normal display area, the spacing between pixels is larger, making the resolution of the CPU lower. In turn, there is an obvious distribution difference at the junction of the CUP area and the normal display area. This area of edge difference also directly leads to an obvious boundary between the CUP area and the normal display area when no photo is taken, which affects the appearance of the screen display.

Contents of the invention

The purpose of the embodiments of the present application is to provide a display panel and a display device, which can solve the problem of obvious distribution difference at the junction of the CUP area and the normal display area in the existing display panel.

In a first aspect, an embodiment of the present application provides a display panel, including: a first display area and a second display area adjacently arranged, the sub-pixel density of the first display area is greater than that of the second display area. Pixel density, wherein, the sub-pixels in the first display area and the second display area form a plurality of pixel groups, and at least one color sub-pixel in each pixel group is used as a set sub-pixel, and the set sub-pixel The pixel includes a first set sub-pixel and a second set sub-pixel, the area of the first set sub-pixel is larger than the area of the second set sub-pixel; in the pixel group of the first display area, The proportion of the first set sub-pixel in the set sub-pixel gradually increases as the pixel group gradually moves away from the adjacent boundary between the first display area and the second display area; In the pixel group in the second display area, the proportion of the second set sub-pixel in the set sub-pixel gradually increases as the pixel group gradually moves away from the adjacent boundary.

In the second aspect, the embodiment of the present application provides a display device, including: a casing; a display panel, the display panel is arranged on the surface of the casing, and the display panel is the display panel described in the first aspect; an under-screen camera , the under-screen camera is arranged below the second display area of the display panel.

In the embodiment of the present application, by changing the arrangement of the sub-pixels, while ensuring the transmittance of the second display area, the display brightness transition is more uniform, and at the same time, the sub-pixels in the direction away from the adjacent boundary The interlacing density is getting smaller and smaller, which can realize the gradual transition of the two display areas.

Description of drawings

FIG. 1 is a schematic diagram of an arrangement of sub-pixels of an existing display panel;

FIG. 2 is a schematic diagram of an arrangement of sub-pixels in the display panel of this embodiment;

FIG. 3 is a schematic diagram of the arrangement of a pixel group in this embodiment;

FIG. 4 is a schematic diagram of the arrangement rule of sub-pixels set in the pixel group of G column in this embodiment;

FIG. 5 is a schematic diagram of the arrangement rule of the set sub-pixels in the pixel group of the RB column in this embodiment;

FIG. 6 is a schematic diagram of another arrangement of sub-pixels in the display panel of this embodiment;

FIG. 7 is a schematic diagram of another arrangement of sub-pixels in the display panel of this embodiment;

FIG. 8 is a schematic structural diagram of the display device of this embodiment.

Detailed ways

The following will clearly describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific sequence or sequence. It should be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application can be practiced in sequences other than those illustrated or described herein, and that references to "first," "second," etc. distinguish Objects are generally of one type, and the number of objects is not limited. For example, there may be one or more first objects. In addition, "and/or" in the specification and claims means at least one of the connected objects, and the character "/" generally means that the related objects are an "or" relationship.

The display panel and the display device provided by the embodiments of the present application will be described in detail below through specific embodiments and application scenarios with reference to the accompanying drawings.

Referring to FIG. 1, FIG. 1 is a schematic diagram of a sub-pixel structure of an existing display panel. The boxes in FIG. Pixel arrangement, the size of the sub-pixels in each display area is equal, as can be seen from Figure 1, there is a clear difference in the distribution of sub-pixels in the two areas, so that the edges of the two display areas are excessively uneven, and there is a clear sense of boundary .

Therefore, with reference to FIG. 2 , this embodiment provides a display panel, including: two adjacent display areas, respectively the first display area 11 and the second display area 12, wherein the first display area 11 can be the main display area, such as a display screen of an electronic device, and the second display area 12 may be an under-screen camera display area for disposing a photosensitive device such as a camera thereunder. The self-images in the first display area 11 and the second display area 12 form a plurality of pixel groups, because the sense of boundary exists at the boundary of the first display area 11 and the second display area 12, therefore, the distribution mode of the above-mentioned pixel groups It is: along the direction perpendicular to the adjacent boundary of the two display areas, the distribution is from near to far relative to the adjacent boundary, that is to say, the distribution starts from the adjacent boundary to the first display area and the second display area.

It should be noted that since the position of the camera can be any position on the edge of the screen of the electronic device, therefore, there can be multiple adjacent boundaries between the second display area 12 and the first display area 11. Referring to FIG. 8, when the second display When the area 12 is located above the display panel, the second display area 12 and the first display area 11 have adjacent boundaries in three directions.

Among them, since the camera area under the screen requires a certain degree of transparency to meet the camera performance, the sub-pixel density of the first display area 11 is greater than that of the second display area 12, so that the second display area 12 can take into account the transparency and show the purpose of both functions.

In this embodiment, in order to make the transition more uniform, the sub-pixels of at least one color in each of the pixel groups in the display area are used as the set sub-pixels, and the set sub-pixels include the first set sub-pixel and the second set sub-pixel. The sub-pixels are set, and the area of the first set sub-pixel is larger than the area of the second set sub-pixel; by changing the size or quantity of the set sub-pixels, the uniform transition of the two display areas is realized. Referring to FIG. 2 , the first set sub-pixels are interspersed in the second set sub-pixels, or the second set sub-pixels are interspersed in the first set sub-pixels.

It should be noted that, since a pixel is composed of red (R), green (G), and blue (B) pixels, the sub-pixels in this embodiment are set as red, blue, and green sub-pixels. Either or both. In addition, the larger the area of the same sub-pixel, the greater the luminance, and the luminance relationship of sub-pixels of different colors in the same area is as follows from large to small: green, red, and blue. In this embodiment, the first display area 11 is the main display area of the electronic device. Therefore, in order to make the pattern displayed on the whole more uniform, the size relationship of the areas of the three sub-pixels in the same display area is as follows from large to small: blue , red, green.

In order to make the pattern displayed by the first display area 11 more uniform in the direction from near to far relative to the adjacent boundary, in the pixel group of the first display area 11, the first set sub-pixel in the set sub-pixel The proportion gradually increases as the pixel group gradually moves away from the adjacent boundary. Taking setting the sub-pixels as green sub-pixels as an example, in the first display area 11, if the proportion of green pixels in the first area in the set sub-pixels in the pixel group closest to the adjacent boundary is 30% One, then the proportion of green pixels in the first area in the set sub-pixels in the pixel group second closest to the adjacent boundary can be two-thirds, and so on.

Similarly, in the pixel group of the second display area 12, since the under-screen camera is arranged under the second display area 12, a certain light transmittance needs to be ensured. Once the sub-pixels are set, it is necessary to ensure that the light transmittance is satisfied under the premise of having a display effect, so that the first display area 11 and the second display area 12 can transition smoothly. Therefore, the proportion of the second set sub-pixels in the set sub-pixels gradually increases as the pixel group gradually moves away from the adjacent boundary. That is to say, the number of the second set sub-pixels is greater than that of the first set sub-pixels. Taking the setting of the sub-pixel as a green sub-pixel as an example, in the second display area 12, if the proportion of green pixels in the first area in the pixel group closest to the adjacent boundary in the set sub-pixel is 30% One, then the green pixels of the second area in the pixel group that is the second closest to the adjacent boundary account for two-thirds of the set sub-pixels, and so on. Wherein, the first area corresponds to the area of the first set sub-pixel, and the second area corresponds to the area of the second set sub-pixel.

It should be noted that, in order to further ensure the uniform transition of the adjacent edge regions of the two display areas, the first set sub-pixel in the first display area 11 and the first set sub-pixel in the second display area 12 in this embodiment The areas are the same, and the areas of the second set sub-pixels in the first display area 11 and the second set sub-pixels in the second display area 12 are the same.

The above is the technical solution of this embodiment by setting pixel groups at the adjacent borders of the first display area and the second display area of the display panel, and by interspersing set sub-pixels of different areas in each pixel group, so as to realize the first Uniform transition between the display area and the second display area.

In this embodiment, in the case that the display panel adopts a diamond arrangement, referring to FIG. 2 and FIG. 3, the pixel group includes at least two columns of sub-pixels, for example, the two columns of sub-pixels are respectively the first pixel column and the second pixel column, and the second column of sub-pixels is respectively The sub-pixels in one pixel row are sub-pixels of the same color, and since three sub-pixels constitute a pixel unit, the sub-pixels in the second pixel row include sub-pixels of two different colors. For example, in FIG. 3 , the first pixel column G0 and the second pixel column RB0 . Wherein, the sub-pixels in the first pixel column G0 are set sub-pixels, and the sub-pixels of one color in the second pixel column RB0 are set sub-pixels. For example, all green pixels in the first pixel column G0 are set sub-pixels, and red pixels or blue pixels in the second pixel column RB0 are set sub-pixels. Considering that the brightness of the green and red pixels is higher than that of the blue pixels, in this embodiment, the green pixels of the first pixel column are used as the set sub-pixels, and the red pixels of the second pixel column are used as the set sub-pixels, so that Maintaining the transmittance of the second display area 12 as much as possible also makes the brightness transition between the first display area and the second display area more uniform.

In this embodiment, in the pixel groups of the first display area 11, for each column of sub-pixels in each pixel group, there are N first setting sub-pixels spaced between two adjacent second setting sub-pixels. Pixels, where N is an integer greater than or equal to 1, and N is an arithmetic sequence as the pixel group gradually moves away from the adjacent boundary. In the pixel group of the second display area 12, for each column of sub-pixels in each pixel group, there are N second set sub-pixels between two adjacent first set sub-pixels , N is an arithmetic sequence as the pixel group gradually moves away from the adjacent boundary. Wherein, N is an integer greater than or equal to 1, and N forms an arithmetic sequence as the pixel group gradually moves away from the adjacent boundary.

For example, referring to FIG. 4, FIG. 4 is a schematic diagram of the sub-pixel arrangement effect of the second display area 12 when green pixels are used as sub-pixels in this embodiment. It can be seen from FIG. 4 that the corresponding column of each adjacent pixel group , the numbers of the second set sub-pixels spaced between two adjacent first set sub-pixels are 1, 2, and 3 respectively, forming an arithmetic progression.

With reference to Fig. 2, the G0 column, RB0 column, G1 column, and RB1 column of the first display area 11 in Fig. 2 are respectively 4 columns of pixels of the first display area 11 close to the adjacent boundary, and the G0 column, RB0 column of the second display area 12 Column, G1 column, and RB1 column are respectively four columns of pixels in the second display area 12 close to the adjacent boundary. Among them, the G0 column of the first display area and the G0 column of the second display area are the first nearest G pixel from the adjacent border, that is, the green pixel; the G0 column of the two areas, from top to bottom, every other Pixels are the mosaic of large and small pixels. That is, for each column of sub-pixels in each pixel group, there is one first set sub-pixel between two adjacent second set sub-pixels. The G1 column in the first display area and the G1 column in the second display area are the G pixels that are the second closest to the adjacent border, and the G1 in the two areas is mosaiced every 2 pixels from top to bottom. Referring to FIG. 4 , it can be seen that the G pixel column which is the third closest to the adjacent boundary of the two display areas, that is, the G3 column, performs mosaicing of large and small pixels every 3 pixels from top to bottom. That is to say, when the display panel adopts the diamond arrangement, the interval between adjacent pixel groups in the same pixel row sets the tolerance of the arithmetic sequence formed by the number N of sub-pixels to 1. It is possible to make the transition of the adjacent boundary parts of the two display areas more uniform. Of course, in another feasible embodiment, the interval in the same pixel column of adjacent pixel groups is set to be the arithmetic sequence formed by the number N of sub-pixels. Tolerance can also be 2 or 3.

In Fig. 2, the RB0 column of the first display area 11 and the RB0 column of the second display area 12 are the RB pixels closest to the adjacent boundary, that is, red and blue pixels, and each RB0 column of the two display areas is spaced apart from each other. One red pixel is inlaid with a sub-pixel of the same color in a different area. For example, the sub-pixels in the RB0 column are arranged in the following order: red pixels in the second area, blue pixels in the first area, red pixels in the first area, and blue pixels in the first area. pixel, a red pixel of the second area, and a blue pixel of the first area, that is, there is only one red pixel of the first area between each red pixel of the second area.

The RB1 column of the first display area 11 and the RB1 column of the second display area 12 are the second nearest RB pixels from the adjacent border of the two display areas, and each RB1 column of the two display areas is inlaid with 2 red pixels every other sub-pixels of the same color with different areas. For example, the arrangement order of the RB1 column is: blue pixels of the first area, red pixels of the first area, blue pixels of the first area, red pixels of the second area, blue pixels of the first area, red pixels of the first area, The red pixels of the first area, the blue pixels of the first area, and the red pixels of the second area, that is, there are two red pixels of the first area between each red pixel of the second area.

In order to show the arrangement relationship of the pixels in the RB column more clearly, refer to Figure 5, there is only one red pixel of the second area between the two red pixels of the first area in the RB0 column; between the two red pixels of the first area of the RB1 column There are two red pixels of the second area; there are three red pixels of the second area between the two red pixels of the first area in the RB2 column.

That is to say, in this embodiment, the pixels in the G column and the RB column are the columns farther away from the adjacent boundaries of the two display areas, that is, G0, G1, G2, G3...Gx and RB0, RB1, RB2, RB3... RBx; the more the number of second set sub-pixels spaced between the same-color set sub-pixels of the two first areas, or the first set sub-pixels spaced between two same-color set sub-pixels of the second area The more pixels there are. That is, the smaller the staggered arrangement density of sub-pixels of the same color with different areas is.

Wherein, in this embodiment, green pixels are mainly used as setting sub-pixels. In a feasible embodiment, the setting sub-pixels may also be red pixels or blue pixels, that is to say, the G0 column and the The position of the RB0 column can be interchanged, that is to say, the pixel column closest to the two display areas can be either the G column or the RB column. Wherein, an adaptive change may also be made to the area size of each sub-pixel to meet different resolution and transparency requirements.

The above is that the display panel of this embodiment adopts the arrangement of diamonds, the arrangement of the sub-pixels on the display panel, under the condition of ensuring the transmittance of the second display area 12, the display brightness transition is more uniform, and at the same time The interlacing density of the sub-pixels becomes smaller and smaller in the direction away from the adjacent border, so that a gradual transition between the two display areas can be realized.

Referring to FIG. 6, in this embodiment, in the case where the display panel adopts an RGB arrangement, the pixel group includes three columns of sub-pixels, and the color of each column of sub-pixels is one of red, green and blue. For example, in FIG. 6 each The sub-pixels in each column from left to right in a pixel group are respectively red, green and blue. Of course, the arrangement order of colors can also be changed according to the requirements of different display panels.

Wherein, each column of sub-pixels in the same pixel group has the same area of the sub-pixels in the direction perpendicular to the adjacent boundary of the two display areas, so that its display does not need to rely on adjacent pixels to meet the display requirements of RGB arrangement. principle.

In this embodiment, when the display panel adopts RGB arrangement, the sub-pixels in each pixel group are set sub-pixels. The three sub-pixels on the same level of each pixel group can be integrated, that is, the three sub-pixels of red, green and blue are taken as a whole, and different numbers of the sub-pixels are set in different pixel groups. The manufacturing difficulty of the fine mask plate for depositing the pixel arrangement can be reduced.

With reference to Fig. 6 and Fig. 7, the N0 column of the first display area and the N0 column of the second display area are the first nearest RGB pixels from the adjacent boundary of the first display area 11 and the second display area 12; In the N0 column, there is an RGB pixel of the first area every other RGB pixel of the second area from top to bottom. In column N0 of the second display area, there is an RGB pixel of the second area every other RGB pixel of the first area from top to bottom.

The N1 column of the first display area and the N1 column of the second display area are the second nearest RGB pixels from the adjacent boundary of the first display area 11 and the second display area 12, and the N1 column of the first display area, from top to bottom Next, there are three RGB pixels of the first area every other RGB pixel of the second area. In column N1 of the second display area, there are three RGB pixels of the second area every other RGB pixel of the first area from top to bottom. That is to say, the columns farther away from the adjacent border positions of the first display area 11 and the second display area 12, namely: N0, N1, N2 ... Nx, the number of pixels of the same size spaced between two RGB pixels The larger the number, the smaller the interlacing density.

In this embodiment, the number N of the first set sub-pixels or the second set sub-pixels spaced between the set sub-pixels of the same area in each adjacent pixel group follows the direction that the pixel group gradually moves away from the adjacent boundary. Arithmetic series. The tolerance of the arithmetic sequence is 2, which can reduce the difficulty of mosaic, and also reduce the manufacturing strength of the fine mask plate for depositing the pixel arrangement. It should be noted that the tolerance of the arithmetic progression can also be 1 or other integers to meet different design requirements.

In addition, since in practical applications, the area of the second display area 12 is much smaller than the area of the first display area 11, therefore, the arrangement of the sub-pixels in this embodiment extends from the adjacent boundary areas of the two display areas to the appropriate The location is fine. That is to say, the arrangement range of the pixel groups in this embodiment is within the first preset range, and the first preset range includes areas extending from the adjacent borders of the two display areas to the first display area 11 and the second display area 12 respectively. The area within the first distance.

Wherein, the first distance can be set according to the display effect or display requirement of the display panel. For example, the first distance can be a distance including 3 pixel groups, which will not be repeated here.

The above is the display panel in which the display panel of this embodiment adopts the RGB arrangement mode. By arranging the three sub-pixels arranged in RGB as a whole, while having a certain transition effect, it is possible to reduce the fine mask for depositing the pixel arrangement. The manufacturing difficulty of the plate, and the arrangement method with a larger spacing distance further reduces the difficulty of sub-pixel mosaic and the manufacturing strength of the fine mask plate for depositing the pixel arrangement.

In addition, the sub-pixels in this embodiment are diamond-shaped and rectangular. In a feasible embodiment, the shape of the sub-pixels may also be a circle or other shapes that meet display requirements.

Referring to FIG. 8 , this embodiment also provides a display device, which includes: a housing, a display panel, and an under-display camera. The housing may be a housing of an electronic device, such as a mobile phone housing. The display panel is arranged on the surface of the casing, and the display panel is the display panel in the above embodiments. The under-screen camera is arranged below the second display area of the display panel, and the under-screen camera is used to collect external image data.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementations. The above-mentioned specific implementations are only illustrative and not restrictive. Those of ordinary skill in the art will Under the inspiration of this application, without departing from the purpose of this application and the scope of protection of the claims, many forms can also be made, all of which belong to the protection of this application.

Claims

A display panel, comprising a first display area and a second display area adjacently arranged, the sub-pixel density of the first display area is greater than the sub-pixel density of the second display area, wherein the first display area and the second display area The sub-pixels in the two display areas form a plurality of pixel groups, and at least one color sub-pixel in each pixel group is used as a set sub-pixel, and the set sub-pixel includes a first set sub-pixel and a second set sub-pixel Setting sub-pixels, the area of the first set sub-pixel is larger than the area of the second set sub-pixel;

In the pixel group of the first display area, the proportion of the first set sub-pixel in the set sub-pixel, as the pixel group gradually moves away from the first display area and the second The direction of the adjacent boundary of the display area gradually increases;

In the pixel group in the second display area, the proportion of the second set sub-pixel in the set sub-pixel gradually increases as the pixel group gradually moves away from the adjacent boundary.
A display panel according to claim 1, wherein the pixel group comprises at least two columns of sub-pixels,

In the pixel groups of the first display area, for each column of sub-pixels in each of the pixel groups, there are N first set sub-pixels between two adjacent second set sub-pixels, Wherein, N is an integer greater than or equal to 1, and N forms an arithmetic sequence as the pixel group gradually moves away from the adjacent boundary;

In the pixel group of the second display area, for each column of sub-pixels in each pixel group, there are N second set sub-pixels between two adjacent first set sub-pixels, N is an arithmetic sequence along the direction in which the pixel group gradually moves away from the adjacent boundary.
The display panel according to claim 2, wherein when the display panel adopts a diamond arrangement, the tolerance of the arithmetic sequence is 1.
The display panel according to claim 2, wherein when the display panel adopts RGB arrangement, the tolerance of the arithmetic sequence is 2.
A display panel according to claim 1, wherein, when the display panel adopts a diamond arrangement,

The pixel group includes two columns of sub-pixels, namely a first pixel column and a second pixel column, the sub-pixels in the first pixel column are sub-pixels of the same color, and the sub-pixels in the second pixel column include two sub-pixels of different colors.
A display panel according to claim 5, wherein, when the display panel adopts a diamond arrangement,

The sub-pixels in the first pixel row are set sub-pixels, and the sub-pixels of one color in the second pixel row are set sub-pixels.
A display panel according to claim 1, wherein, when the display panel adopts RGB arrangement,

The pixel group includes three columns of sub-pixels, and the color of the sub-pixels in each column is one of red, green and blue;

Each column of sub-pixels in the same pixel group has the same area of the sub-pixels along the direction perpendicular to the adjacent boundary.
A display panel according to claim 7, wherein, when the display panel adopts RGB arrangement,

The sub-pixels in each pixel group are the set sub-pixels.
The display panel according to claim 1, wherein the range of arrangement of the pixel groups is within a first preset range, and the first preset range is that the adjacent borders respectively extend to the first display The area and the second display area extend an area within the first distance.
A display device comprising:

case;

A display panel, the display panel is arranged on the surface of the casing, and the display panel is the display panel described in any one of claims 1-9;

An under-screen camera, the under-screen camera is arranged below the second display area of the display panel.