CN110596933B

CN110596933B - Display panel

Info

Publication number: CN110596933B
Application number: CN201911007124.1A
Authority: CN
Inventors: 陈彦良
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2016-12-02
Filing date: 2017-01-19
Publication date: 2022-04-26
Anticipated expiration: 2037-01-19
Also published as: CN110596933A; CN106646978A; TWI612505B; TW201822175A; CN106646978B

Abstract

The invention discloses a display panel which comprises a first substrate and a pixel array. The pixel array is disposed on the first substrate and includes at least a first pixel portion and a second pixel portion. The first pixel portion comprises a plurality of first sub-pixels, and the plurality of first sub-pixels of the first pixel portion have a first arrangement density. The second pixel portion surrounds the first pixel portion, and the second pixel portion includes a plurality of second sub-pixels. The plurality of second sub-pixels have a second arrangement density, and the second arrangement density is higher than the first arrangement density.

Description

Display panel

The application is a divisional application, and the application date of the original application is as follows: 19/2017/1 month; the application numbers of the original applications are: 201710043923.9, respectively; the invention name of the original application is: a display panel.

Technical Field

The present invention relates to a display panel, and more particularly, to a display panel with different pixel designs having different arrangement densities.

Background

Generally, a display panel includes two substrates (e.g., an active device array substrate and an opposite substrate) disposed opposite to each other, a display medium layer interposed between the two substrates, and a main spacer (main spacer) for supporting a gap between the two substrates. However, during the assembly or use of the display panel, the relative position between the two substrates is often shifted due to process errors or other factors, thereby affecting the display quality of the display panel.

For example, in the assembly or use process, the main spacers may scratch the substrate and cause light leakage of the display panel due to misalignment during assembly or pressing during use. In addition, in the assembly process of the curved display panel, the two substrates are bent into a curved surface together by external force after the pair assembly is completed. However, after the two substrates are bent by external force, the relative positions of the two substrates are also shifted to generate dislocation, thereby causing the problems of dark state light leakage and low liquid crystal efficiency, etc. to affect the display quality.

Disclosure of Invention

In one embodiment, a display panel includes a first substrate and a pixel array. The pixel array is disposed on the first substrate and includes at least one first pixel portion and at least one second pixel portion. The first pixel portion comprises a plurality of first sub-pixels, and the plurality of first sub-pixels of each first pixel portion have a first arrangement density. Each first pixel portion comprises two first group first pixel portions and a second group first pixel portion. The second group of first pixel parts is positioned between the two first group of first pixel parts. The second pixel portion comprises a plurality of second sub-pixels, and the plurality of second sub-pixels of the second pixel portion have a second arrangement density. At least one second pixel is disposed adjacent to any one of the first pixel portions, and the second arrangement density is higher than the first arrangement density.

Drawings

Fig. 1 is a schematic diagram of a display panel according to a first embodiment of the invention.

Fig. 2 is a schematic diagram of a display panel according to a second embodiment of the invention.

Fig. 3 is a schematic diagram of a layout of a first embodiment of a pixel array.

Fig. 4 is an enlarged schematic diagram of the block a1 in fig. 3.

Fig. 5 is an enlarged schematic diagram of the block a2 in fig. 3.

Fig. 6 is a schematic diagram of a layout of a second embodiment of a pixel array.

Fig. 7 is an enlarged schematic diagram of the block a 1.

Fig. 8 is an enlarged schematic diagram of the block a 3.

Fig. 9 is an enlarged schematic diagram of the block a 2.

Fig. 10 is an enlarged schematic diagram of the block a 4.

Fig. 11 is a schematic diagram of a layout of a third embodiment of a pixel array.

Fig. 12 is an enlarged schematic diagram of the block a 5.

Fig. 13 is a schematic diagram of a layout of a fourth embodiment of a pixel array.

Fig. 14 is a schematic diagram of a pixel array, a main spacer, a sub spacer and a light-shielding pattern layer.

Fig. 15 is a schematic cross-sectional view of the display panel of fig. 14 taken along line 15.

Fig. 16 is a schematic cross-sectional view of the display panel of fig. 14 taken along line 16.

100 display Panel 110 first substrate

110a first side 110b second side

111 first block 112 second block

120 pixel array 121 first pixel section

122 second pixel portion 130 second substrate

140 light-shielding pattern layer 150 display medium layer

160 primary spacer 170 secondary spacer

180 color filter layer 190 protection layer

C1 first color C2 second color

C3 third color D1 first direction

Junction of D2 in second direction J1

L1 first disposition length L2 second disposition length

Lm maximum Width Ls maximum Width

M1 axial P1 first sub-pixel

B11 first group first pixel section B12 second group first pixel section

B13 third group first pixel part P2 second sub-pixel

B21 first group second pixel section B22 second group second pixel section

W1 first layout width Wd11 Width

Width Wd12 Wd13 width

W2 second layout width Wd21 Width

Width of Wd 22A 1-A5 Block

Height H1, H2

Detailed Description

The detailed features and advantages of the present invention are described in detail in the following embodiments, which are sufficient for anyone skilled in the art to understand the technical contents of the present invention and to implement the present invention, and the related objects and advantages of the present invention can be easily understood by anyone skilled in the art according to the disclosure, claims and drawings of the present specification.

Fig. 1 is a schematic diagram of a display panel according to a first embodiment of the present invention, fig. 2 is a schematic diagram of a display panel according to a second embodiment of the present invention, and fig. 3 is a schematic diagram of a configuration plan of a first implementation of a pixel array. Referring to fig. 1 to 3, the display panel 100 includes a first substrate 110 and a pixel array 120, and the pixel array 120 is disposed on the first substrate 110.

The first substrate 110 may be a rectangular plate and has two opposite first sides 110a and two opposite second sides 110 b. In the following, a longer side of the first substrate 110 is used as the first side 110a, and a shorter side is used as the second side 110b for explanation, but the invention is not limited thereto, and in an embodiment, the shorter side of the first substrate 110 may be used as the first side 110a, and the longer side may be used as the second side 110 b.

In some embodiments, the first substrate 110 may be a transparent substrate, such as a glass substrate, a plastic substrate, a quartz substrate, or other suitable materials. In some embodiments, the first substrate 110 may be a rigid substrate, a flexible substrate, or a moldable substrate.

In some embodiments, the display panel 100 may be a curved display. In one embodiment, the first substrate 110 may be bent in a second direction D2 orthogonal to the first direction D1 with the first direction D1 as its axis M1. The second direction D2 is an arc direction, and the second side 110b of the first substrate 110 is curved. In one embodiment, the display panel 100 may be bent only in the second direction D2 and not bent in the first direction D1. However, the invention is not limited thereto, and in another embodiment, the display panel 100 may also be bent in the first direction D1 and the second direction D2 at the same time. The first direction D1 and the second direction D2 are both arc directions, and the first side 110a and the second side 110b of the first substrate 110 are both curved.

In an embodiment, as shown in fig. 1, when the first substrate 110 is viewed from a viewing angle facing the first substrate 110, the first substrate 110 may be in a concave state. However, the invention is not limited thereto, and in another embodiment, as shown in fig. 2, when the first substrate 110 is viewed from a viewing angle facing the first substrate 110, the first substrate 110 may also be in a convex state.

The first substrate 110 can be divided into two blocks (hereinafter referred to as the first block 111 and the second block 112, respectively) according to the axis M1. Hereinafter, the extending direction of the first side 110a of the first substrate 110 is taken as the first direction D1, the extending direction of the second side 110b of the first substrate 110 is taken as the second direction D2, and the first substrate 110 is bent only in the second direction D2.

In an embodiment, the axis M1 of the first substrate 110 may be located at the center of the first substrate 110, and two first blocks 111 and two second blocks 112 with the same size may be separated from the first substrate 110, but the invention is not limited thereto.

The pixel array 120 may include at least one first pixel portion 121 and at least one second pixel portion 122, and the first pixel portion 121 and the second pixel portion 122 may be disposed in a staggered manner in the second direction D2, and the second pixel portion 122 in each block is disposed around the periphery of the first pixel portion 121 to surround the first pixel portion 121 therein, as shown in fig. 3.

Fig. 4 is an enlarged schematic view of a block a1 in fig. 3, and fig. 5 is an enlarged schematic view of a block a2 in fig. 3. Referring to fig. 3 to 5, each of the first pixel portions 121 may include a plurality of first sub-pixels P1, and the plurality of first sub-pixels P1 of each of the first pixel portions 121 may have a first arrangement density. In addition, each of the second pixel parts 122 may include a plurality of second sub-pixels P2, and the plurality of second sub-pixels P2 of each of the second pixel parts 122 may have a second arrangement density.

Referring to fig. 4 and 5, the first sub-pixel P1 has two opposite first sides and two opposite second sides, and the second sub-pixel P2 also has two opposite first sides and two opposite second sides. Hereinafter, the longer side of the first subpixel P1 and the second subpixel P2 is referred to as a first side, and the shorter side thereof is referred to as a second side. The first side of the first sub-pixel P1 has a first layout length L1, and the second side has a first layout width W1. The first side of the second sub-pixel P2 has a second arrangement length L2, and the second side has a second arrangement width W2.

In one embodiment, as shown in fig. 4 and 5, the first sub-pixel P1 and the second sub-pixel P2 may be arranged in a lying manner along the first direction D1 and the second direction D2, respectively. In other words, the first side of the first sub-pixel P1 and the first side of the second sub-pixel P2 are parallel to the first direction D1, and the second side of the first sub-pixel P1 and the second side of the second sub-pixel P2 are parallel to the second direction D2. However, the present invention is not limited thereto, and in another variation, the first sub-pixel P1 and the second sub-pixel P2 may be respectively arranged along the first direction D1 and the second direction D2 in an upright manner. In other words, the second sides of the first sub-pixel P1 and the second sub-pixel P2 are parallel to the first direction D1, and the first sides of the first sub-pixel P1 and the second sub-pixel P2 are parallel to the second direction D2.

In one embodiment, as shown in fig. 4 and 5, the first arrangement length L1 of the first sub-pixel P1 is substantially equal to the second arrangement length L2 of the second sub-pixel P2, and the first arrangement width W1 of any two adjacent first sub-pixels P1 is substantially equal to the second arrangement width W2 of any three adjacent second sub-pixels P2 in the same direction, that is, the relationship between W1 and W2 substantially conforms to 2 × W1 — 3W 2. In other words, the size (i.e., the product of the first edge and the second edge) of the first sub-pixel P1 is greater than the size of the second sub-pixel P2.

In some embodiments, the first configuration width W1 may be 1.5 times the second configuration width W2, for example, the second configuration width W2 may be 28.8 microns when the first configuration width W1 is 43.2 microns. In addition, the first disposition length L1 of the first sub-pixel P1 is substantially equal to the second disposition length L2 of the second sub-pixel P2, for example, the first disposition length L1 and the second disposition length L2 may be substantially 86.4 micrometers (μm). Therefore, the configurable number of the second sub-pixels P2 is greater than the configurable number of the first sub-pixels P1 in a unit area. In other words, the second arrangement density of the second sub-pixel P2 is greater than the first arrangement density of the first sub-pixel P1. Herein, the first arrangement density refers to an arrangeable number of the first sub-pixels P1 in a unit area, and the second arrangement density refers to an arrangeable number of the second sub-pixels P2 in a unit area.

In some embodiments, the first pixel part 121 may configure the first sub-pixel P1 (as shown in fig. 4) in a sub-pixel rendering (sub-pixel rendering) arrangement, and the second pixel part 122 may configure the second sub-pixel P2 (as shown in fig. 5) in a stripe pixel arrangement. As shown in fig. 4, the plurality of first subpixels P1 of each first pixel part 121 may include two first color subpixels P1, a second color first subpixel P1, and a third color first subpixel P1. The first color first sub-pixel P1 is configured to represent a first color C1, the second color first sub-pixel P1 is configured to represent a second color C2, and the third color first sub-pixel P1 is configured to represent a third color C3. Here, the two first color first sub-pixels P1 are diagonally disposed, and the second color first sub-pixel P1 and the third color first sub-pixel P1 are diagonally disposed. In the display mode, taking fig. 4 as an example, the arrangement of the sub-pixel rendering is adopted such that the four first sub-pixels P1 of the first pixel portion 121 can achieve the display effect of two pixel units. In addition, as shown in fig. 5, each of the second pixel portions 122 may include a plurality of pixel units. Each pixel unit may include a plurality of second sub-pixels P2, and the plurality of second sub-pixels P2 may include a first color second sub-pixel P2, a second color second sub-pixel P2, and a third color second sub-pixel P2. The first color second sub-pixel P2 is configured to represent a first color C1, the second color second sub-pixel P2 is configured to represent a second color C2, and the third color second sub-pixel P2 is configured to represent a third color C3. In one embodiment, the plurality of second sub-pixels P2 in each pixel unit are sequentially arranged according to the order of the first color second sub-pixel P2, the second color second sub-pixel P2 and the third color second sub-pixel P2. However, the invention is not limited thereto, and in another embodiment, the first color second sub-pixel P2 may be located between the second color second sub-pixel P2 and the third color second sub-pixel P2, as shown in fig. 5. The first color C1, the second color C2 and the third color C3 are different colors, such as: red, green and blue, but the invention is not limited thereto.

As shown in fig. 1, the display panel 100 further includes a second substrate 130 and a display medium layer 150. The second substrate 130 is disposed opposite to the first substrate 110, the light-shielding pattern layer 140 (as shown in fig. 4 and 5) can be disposed on the first substrate 110 or the second substrate 130, and the light-shielding pattern layer 140 and the display medium layer 150 are disposed between the first substrate 110 and the second substrate 130.

In some embodiments, the second substrate 130 may be a transparent substrate, such as a glass substrate, a plastic substrate, a quartz substrate, or other suitable materials. In some embodiments, the second substrate 130 may be a rigid substrate, a flexible substrate, or a moldable substrate. In addition, the display medium layer 150 may include a liquid crystal material, an organic light emitting material, an ink, an electronic ink, or other suitable display material. The invention is not so limited.

In some embodiments, when the display panel 100 is a curved display, the second substrate 130 and the first substrate 110 may be forced together to be bent into a curved surface after the pair is completed. In other words, the second substrate 130 is bent in the same direction as the first substrate 110.

In general, the light shielding pattern layer 140 may be referred to as a Black Matrix (Black Matrix) and may be used to shield light leakage between different sub-pixels in the display panel 100. The light-shielding pattern layer 140 may be disposed at the boundary of any two adjacent first sub-pixels P1, at the boundary of any two adjacent second sub-pixels P2, and at the boundary of any two adjacent first sub-pixels P1 and second sub-pixels P2 in the orthographic projection direction of the first substrate 110, and may be interlaced into a grid-shaped light-shielding pattern, and the light-shielding pattern layer 140 may shield the light leakage phenomenon and misalignment condition in the display panel 100.

In one embodiment, the light-shielding pattern layer 140 may be disposed on the second substrate 130. In addition, the material of the light-shielding pattern layer 140 may be a black photoresist material or a low light-transmitting material, such as a metal with low reflectivity (e.g., chrome, nickel, etc.), but the invention is not limited thereto.

Since the display panel 100 is bent along the second direction D2, the first substrate 110 is misaligned with respect to the second substrate 130 in the second direction D2. Therefore, in an embodiment, the light-shielding pattern of the light-shielding pattern layer 140 in the direction parallel to the first direction D1 may have a width (Wd11, Wd21) variation in the second direction D2, and the light-shielding pattern in the direction parallel to the second direction D2 may have a width variation in the first direction D1, but the present invention is not limited thereto, and in another embodiment, when the display panel 100 is bent in both the first direction D1 and the second direction D2, the first substrate 110 may be misaligned with respect to the second substrate 130 in the first direction D1 and the second direction D2, and at this time, the light-shielding pattern of the light-shielding pattern layer 140 in the direction parallel to the first direction D1 may have a width variation in the second direction D2, and the light-shielding pattern in the direction parallel to the second direction D2 may also have a width variation in the first direction D1. Hereinafter, only the case where the misalignment occurs in the second direction D2 will be described as an example.

Fig. 6 is a schematic diagram of a layout of a second embodiment of a pixel array, please refer to fig. 7 which is an enlarged schematic diagram of a block a1, fig. 8 which is an enlarged schematic diagram of a block A3, fig. 9 which is an enlarged schematic diagram of a block a2, and fig. 10 which is an enlarged schematic diagram of a block a 4. Referring to fig. 1 and 6 to 10, in an embodiment of the pixel array 120, each of the first pixel portions 121 may be divided into at least two groups (hereinafter, the two groups are referred to as a first group first pixel portion B11 and a second group first pixel portion B12, respectively, for example), and the first group first pixel portion B11 is disposed at the periphery of the second group first pixel portion B12 and surrounds the second group first pixel portion B12 therein. In addition, as shown in fig. 6, the second pixel portions 122 may also be divided into at least two groups (hereinafter, the division into two groups is taken as an example and referred to as a first group second pixel portion B21 and a second group second pixel portion B22, respectively). The first group second pixel part B21 is disposed at the periphery of the second group second pixel part B22 to surround the second group second pixel part B22 therein, and the second group second pixel part B22 is disposed at the periphery of the first group first pixel part B11 to surround the first group first pixel part B11 therein.

In one embodiment, as shown in fig. 7 and 8, in the first direction D1, the width Wd11 of the light-shielding pattern layer 140 between any two adjacent first sub-pixels P1 in the first group of first pixel portions B11 may be smaller than the width Wd12 of the light-shielding pattern layer 140 between any two adjacent first sub-pixels P1 in the second group of first pixel portions B12, so that the aperture ratio of each first sub-pixel P1 in the first group of first pixel portions B11 is greater than the aperture ratio of each first sub-pixel P1 in the second group of first pixel portions B12. Similarly, as shown in fig. 9 and 10, in the first direction D1, the width Wd21 of the light-shielding pattern layer 140 between any two adjacent second subpixels P2 in the first group second pixel portion B21 may be smaller than the width Wd22 of the light-shielding pattern layer 140 between any two adjacent second subpixels P2 in the second group second pixel portion B22, so that the aperture ratio of each second subpixel P2 in the first group second pixel portion B21 is greater than the aperture ratio of each second subpixel P2 in the second group second pixel portion B22.

In one embodiment, the difference between the width Wd12 of the light-shielding pattern layer 140 corresponding to any two adjacent first sub-pixels P1 in the second group first pixel portion B12 and the width Wd11 of the light-shielding pattern layer 140 corresponding to any two adjacent first sub-pixels P1 in the first group first pixel portion B11 may be in a range of 1 micrometer to 3 micrometers. In addition, the difference between the width Wd22 of the light-shielding pattern layer 140 corresponding to any two adjacent second subpixels P2 in the second group second pixel section B22 and the width Wd21 of the light-shielding pattern layer 140 corresponding to any two adjacent second subpixels P2 in the first group second pixel section B21 may be in the range of 1 micrometer to 3 micrometers.

In one embodiment, the width Wd11 of the light-shielding pattern layer 140 between any two adjacent first sub-pixels P1 in the first group of first pixel portions B11 is substantially equal to the width Wd21 of the light-shielding pattern layer 140 between any two adjacent second sub-pixels P2 in the first group of second pixel portions B21, and the aperture ratio of each first sub-pixel P1 in the first group of first pixel portions B11 is greater than the aperture ratio of each second sub-pixel P2 in the first group of second pixel portions B21.

It should be noted that, although the above description is only made for the two sets of the first pixel portions B11 and B12 and the two sets of the second pixel portions B21 and B22, the present invention is not limited thereto. Fig. 11 is a schematic diagram of a layout of a third embodiment of a pixel array, and fig. 12 is an enlarged schematic diagram of a block a 5. Referring to fig. 7 to 12, each of the first pixel portions 121 of the pixel array 120 may be further subdivided into three groups of first pixel portions B11-B13.

For example, as shown in fig. 11, in the third implementation of the pixel array 120, the first group first pixel portion B11 is disposed at the periphery of the second group first pixel portion B12 and can enclose the second group first pixel portion B12 therein, and the second group first pixel portion B12 is disposed at the periphery of the third group first pixel portion B13 and can enclose the third group first pixel portion B13 therein.

Here, as shown in fig. 7 and 8, the width Wd11 of the light-shielding pattern layer 140 between any two adjacent first subpixels P1 in the first group first pixel section B11 may be smaller than the width Wd12 of the light-shielding pattern layer 140 between any two adjacent first subpixels P1 in the second group first pixel section B12, so that the aperture ratio of each first subpixel P1 in the first group first pixel section B11 is greater than the aperture ratio of each first subpixel P1 in the second group first pixel section B12. Further, as shown in fig. 8 and 12, the width Wd12 of the light-shielding pattern layer 140 corresponding to between any two adjacent first subpixels P1 in the second group first pixel section B12 may be smaller than the width Wd13 of the light-shielding pattern layer 140 corresponding to between any two adjacent first subpixels P1 in the third group first pixel section B13, so that the aperture ratio of each first subpixel P1 in the second group first pixel section B12 is greater than the aperture ratio of each first subpixel P1 in the third group first pixel section B13.

In one embodiment, the width of the light-shielding pattern layer 140 between the first sub-pixels P1 corresponding to each first pixel section 121 in the first direction D1 may increase from the junction J1 corresponding to the first pixel section 121 and the second pixel section 122 toward the inside of the first pixel section 121, so that the aperture ratio of the first sub-pixels P1 of each first pixel section 121 decreases from the junction J1 of the first pixel section 121 and the second pixel section 122 toward the inside of the first pixel section 121. In addition, the width of the light-shielding pattern layer 140 between the second sub-pixels P2 corresponding to the second pixel part 122 in the first direction D1 may decrease from the junction J1 corresponding to the first pixel part 121 and the second pixel part 122 toward the periphery of the second pixel part 122, so that the aperture ratio of the second sub-pixels P2 of the second pixel part 122 increases from the junction of the first pixel part 121 and the second pixel part 122 toward the periphery of the second pixel part 122J 1.

In an embodiment, when the display panel 100 is a curved display, the first pixel P1 with a larger size may be disposed corresponding to an area where the misalignment amount of the first substrate 110 relative to the second substrate 130 is large, for example, when the display panel 100 shown in fig. 1 or fig. 2 is taken as an example, the area where the misalignment amount of the first substrate 110 relative to the second substrate 130 is large is located substantially in the middle of the first block 111 and in the middle of the second block 112. Therefore, the first pixel portion 121 can be disposed in the middle of the first block 111 and the middle of the second block 112 of the first substrate 110 to increase the aperture ratio through the first pixel P1 with a larger size, so as to reduce the influence of thickening the width of the light-shielding pattern layer 140 for shielding the misalignment. In addition, the smaller second pixel P2 may be disposed corresponding to a region where the displacement of the first substrate 110 relative to the second substrate 130 is slight or zero, for example, the second pixel portion 122 may be located at the axis M1 of the first substrate 110, and/or a peripheral region of the first substrate 110, for example, a peripheral region of the first substrate 110 adjacent to where the sealant is fixed.

In some embodiments, as shown in fig. 3, 6 and 11, the pixel array 120 may be designed to be a surrounding type, and the second pixel portion 122 is disposed around the first pixel portion 121 to surround the first pixel portion 121. In other words, the second pixel portion 122 is disposed adjacent to and along the entire periphery of the first pixel portion 121. However, the present invention is not limited thereto.

Fig. 13 is a schematic diagram of a layout of a fourth implementation of a pixel array, please refer to fig. 7 to 10 and 12, the pixel array 120 may further be designed in a stripe manner, and the first sub-pixels P1 and the second sub-pixels P2 may respectively extend along the first direction D1 between the second sides 110b of the first substrate 110, and the first pixel portions 121 and the second pixel portions 122 are disposed in an interlaced or spaced manner in the second direction D2 to present a stripe configuration.

In one embodiment, as shown in fig. 13, the plurality of first sub-pixels P1 of each first pixel portion 121 can be divided into at least two first group first pixel portions B11 and at least one second group first pixel portion B12, and the second group first pixel portion B12 is located between the two first group first pixel portions B11.

In addition, as shown in fig. 13, the plurality of second sub-pixels P2 of each second pixel section 122 may be divided into at least one first group second pixel section B21 and at least two second group second pixel sections B22. The first group of second pixel portions B21 is located between the two second group of second pixel portions B22, and the two second group of second pixel portions B22 are respectively adjacent to the two first pixel portions 121.

In an embodiment, the second pixel portion 122 sandwiched between the first side 110a of the first substrate 110 and the first pixel portion 121 may include only one first group second pixel portion B21 and one second group second pixel portion B22. The second group of second pixel portions B22 is adjacent to the first pixel portion 121, and the first group of second pixel portions B21 is adjacent to the first side 110a of the first substrate 110.

It should be noted that, the width of the light-shielding pattern layer 140 between the second sub-pixels P2 of the second pixel portion 122 sandwiched between the first side 110a of the first substrate 110 and the first pixel portion 121 in the first direction D1 increases from the adjacent position of the second pixel portion 122 and the first side 110a of the first substrate 110 to the junction J1 of the second pixel portion 122 and the first pixel portion 121, so that the aperture ratio of the second sub-pixel P2 sandwiched between the first side 110a of the first substrate 110 and the first pixel portion 121 decreases from the first side 110a to the junction J1 of the second pixel portion 122 and the first pixel portion 121. In addition, the width of the light-shielding pattern layer 140 in the first direction D1 corresponding to the plurality of second subpixels P2 of the second pixel unit 122 interposed between the two first pixel units 121 increases from the inside of the second pixel unit 122 toward the junction J1 between the second pixel unit 122 and the adjacent two first pixel units 121, so that the aperture ratio of the second subpixel P2 interposed between the two first pixel units 121 decreases from the inside of the second pixel unit 122 toward the junction J1 between the second pixel unit 122 and any one of the adjacent first pixel units 121.

Fig. 14 is a schematic diagram of a pixel array, a main spacer, a sub spacer and a light-shielding pattern layer, fig. 15 is a schematic cross-sectional view of the display panel taken along line 15 in fig. 14, and fig. 16 is a schematic cross-sectional view of the display panel taken along line 16 in fig. 14. Referring to fig. 14 to 16, the display panel 100 further includes at least one main spacer (main spacer) 160.

The main spacer 160 is disposed between the first substrate 110 and the second substrate 130, and can contact the first substrate 110 and the second substrate 130 simultaneously under a normal condition (i.e., no deformation or external pressure), or contact a film layer (e.g., the pixel array 120 on the first substrate 110) on the first substrate 110 and a film layer (e.g., the protection layer 190) on the second substrate 130 simultaneously, so that a fixed gap can be maintained between the first substrate 110 and the second substrate 130.

In addition, the display panel 100 further includes at least one sub spacer 170, and the sub spacer 170 is disposed between the first substrate 110 and the second substrate 130. Under normal conditions (i.e., no deformation or external pressure is applied) of the display panel 100, one end of the sub-spacer 170 may contact the second substrate 130 or a film on the second substrate 130, such as the protection layer 190, and the other end of the sub-spacer 170 does not contact the first substrate 110 or a film on the first substrate 110. When the display panel 100 is pressed by an external force, the other end of the sub spacer 170 may contact the first substrate 110 or a film on the first substrate 110, so as to prevent the display panel 100 from being damaged due to excessive deformation. In other words, the height H2 of the sub spacer 170 is substantially less than the height H1 of the main spacer 160.

In one embodiment, the main spacers 160 and the sub-spacers 170 overlap the light-shielding pattern of the light-shielding pattern layer 140 in the orthogonal projection direction of the first substrate 110. In other words, the light-shielding pattern layer 140 can shield the main spacers 160 and the sub-spacers 170 disposed between the first substrate 110 and the second substrate 130.

In one embodiment, the primary spacer 160 and the secondary spacer 170 may be cylindrical, conical, or other suitable structures. In addition, the number of the sub spacers 170 may be approximately 30 times the number of the main spacers 160.

Generally, in the process of aligning and assembling the first substrate 110 and the second substrate 130, the main spacers 160 may be misaligned or the main spacers 160 may scratch the first substrate 110 when the display panel is deformed due to external force, such that light leakage may occur around the main spacers 160. It is conventional to enlarge the portion of the light-shielding pattern layer 140 corresponding to the main spacer 160 to shield the possible light leakage region. However, the light-shielding pattern layer 140 corresponding to the main spacer 160 also shields the transmission region of the pixel adjacent to the main spacer 160, which causes the brightness of the region adjacent to the main spacer 160 to decrease to form Dot Mura (Dot Mura), thereby causing the display image to be defective.

In one embodiment, the maximum width Lm of the light-shielding pattern corresponding to the main spacer 160 in the light-shielding pattern layer 140 is substantially greater than the maximum width Ls of the light-shielding pattern corresponding to the sub spacer 170. For example, in an embodiment using the photo-alignment process, the maximum width Lm of the light shielding pattern corresponding to the main spacer 160 may be 11 micrometers, and the maximum width Ls of the light shielding pattern corresponding to the sub spacer 170 may be 6 micrometers.

Therefore, in one embodiment, each of the main spacers 160 may be disposed corresponding to the first pixel portion 121 including the first sub-pixel P1 having a larger size, respectively, to increase a penetration area adjacent to the main spacer 160. Here, each main spacer 160 is located in the first pixel portion 121, and the first sub-pixel P1 of each first pixel portion 121 may surround the corresponding main spacer 160 in the orthographic projection direction of the first substrate 110. In addition, the sub spacer 170 may be disposed corresponding to the second pixel portion 122 including the second sub pixel P2 having a smaller size.

Since the structural configurations of the first pixel portion 121, the second pixel portion 122, the first sub-pixel P1 and the second sub-pixel P2 are substantially the same as those described above, they are not described in detail below.

In an embodiment, the main spacer 160 may be located between any four adjacent first pixels P1 in the corresponding first pixel portion 121, or only located between a portion of the four adjacent first pixels P1. However, the present invention is not limited thereto, and the main spacer 160 may also be disposed between any two adjacent first pixels P1 in the corresponding first pixel portion 121, or only between a portion of two adjacent first pixels P1.

Generally, in a conventional display panel, the ratio of the transmission region adjacent to the main spacer to the transmission region adjacent to the sub spacer may be about 0.73, whereas in the display panel 100 of the embodiment, the ratio of the transmission region adjacent to the main spacer 160 to the transmission region adjacent to the sub spacer 170 may be about 0.8. In other words, in the display panel 100 of the embodiment, the ratio of the transmission region adjacent to the main spacer 160 to the transmission region adjacent to the sub spacer 170 can be improved by about 1.09 times compared to the conventional one.

In some embodiments, the display panel 100 may further include a color filter layer 180, and the color filter layer 180 is disposed on the second substrate 130, as shown in fig. 15 and 16.

In summary, in the display panel of the embodiments of the invention, the pixel array is designed such that the plurality of sub-pixels with high arrangement density are arranged around the plurality of sub-pixels with low arrangement density, so as to increase the aperture ratio and the transmittance of the pixel array corresponding to the regions with larger displacement or the main spacers, and further improve the optical performance of the display panel.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A display panel, comprising:

a first substrate; and

a pixel array disposed on the first substrate, wherein the pixel array includes:

at least one first pixel portion, the first pixel portion including a plurality of first sub-pixels, the plurality of first sub-pixels of each first pixel portion having a first arrangement density, each first pixel portion including two first group first pixel portions and a second group first pixel portion, and the second group first pixel portion being located between the two first group first pixel portions;

at least one second pixel portion, the second pixel portion including a plurality of second sub-pixels, the plurality of second sub-pixels having a second arrangement density, and the at least one second pixel portion being disposed adjacent to any one of the first group of first pixel portions, wherein the second arrangement density is higher than the first arrangement density; and

a shading pattern layer arranged on the first substrate in an orthographic projection direction corresponding to the boundary of any two adjacent first sub-pixels, the boundary of any two adjacent second sub-pixels and the boundary of any two adjacent first sub-pixels and second sub-pixels;

the first substrate is provided with an axis along a first direction, the first substrate is divided into a first block and a second block by the axis, the middle of the first block and the middle of the second block are respectively provided with the first pixel part, and the at least one second pixel part is overlapped with the axis of the first substrate; in the orthographic projection direction of the first substrate, the width of the light shielding layer pattern of any two adjacent first pixel parts in the first group of first pixel parts in the direction parallel to the first direction is smaller than the width of the light shielding layer pattern of any two adjacent first sub-pixel parts in the second group of first pixel parts in the direction parallel to the first direction.

2. The display panel according to claim 1, wherein the first substrate has two first sides parallel to the first direction and two second sides connecting the first sides, another second pixel portion is disposed between the first side and the first pixel portion, and aperture ratios of the second sub-pixels of the another second pixel portion increase from a boundary of the another second pixel portion and the first pixel portion toward the first side.

3. The display panel according to claim 1, wherein the aperture ratios of the second sub-pixels of the second pixel portion interposed between two adjacent first pixel portions decrease from the inside of the second pixel portion toward the boundary between the second pixel portion and the adjacent first pixel portion.

4. The display panel according to claim 1, wherein the first substrate has two first sides parallel to the first direction and two second sides connecting the first sides, and the first pixel portion and the at least one second pixel portion are disposed between the two second sides along the first direction.

5. The display panel of claim 1, wherein the at least one first pixel portion comprises a plurality of pixel units, each of the pixel units comprises two first color first sub-pixels, a second color first sub-pixel and a third color first sub-pixel, the two first color first sub-pixels are diagonally arranged, and the second color first sub-pixel is diagonally arranged with respect to the third color first sub-pixel.

6. The display panel of claim 1, wherein the at least one second sub-pixel portion comprises a plurality of pixel units, each of the pixel units comprising a first color second sub-pixel, a second color second sub-pixel and a third color second sub-pixel of the plurality of second sub-pixels arranged in sequence.