CN112462550B - Display panel - Google Patents

Abstract

The invention discloses a display panel which is bent into a curved surface by an axis. The display panel is provided with a first area and a second area, and the distance between the first area and the axis is smaller than the distance between the second area and the axis. The display panel comprises a first substrate, a second substrate, a black matrix and a spacer. The spacers are arranged between the first substrate and the second substrate, the distribution proportion of the spacers in the first area is smaller than that of the spacers in the second area, and the width of the black matrix in the first area is smaller than that of the black matrix in the second area. Therefore, the gap variation between the two substrates can be avoided, and the problem of light leakage is also avoided.

Description

display panel

Technical field

The invention relates to a curved display panel.

Background technique

With the development of display technology, curved LCD displays have been widely used. Because it can greatly enhance the user's sense of being surrounded and immersed, it is deeply loved by the majority of users. The manufacturing process of the existing curved liquid crystal display is generally as follows: first, a planar color filter substrate and an array substrate are respectively produced, and then the color filter substrate and the array substrate are combined to form a planar liquid crystal panel, and then the color filter substrate and the array substrate are combined to form a planar liquid crystal panel. The flat LCD panel is bent to form a curved LCD panel. Since the curved color filter substrate and the array substrate have different bending degrees, sliding misalignment will cause the pixels on the color filter substrate and the array substrate to be unable to face each other vertically, causing problems such as color mixing and light leakage. Resulting in a significant decline in display quality.

Contents of the invention

The object of the present invention is to provide a display panel that can avoid variation in the gap between two substrates and avoid the problem of light leakage.

An embodiment of the present invention provides a display panel, which has an axis in a first direction and is bent into a curved surface along the axis. The display panel has a first area and a second area. The display panel includes a first substrate, a second substrate, a black matrix and spacers. Data lines and gate lines are provided on the first substrate, and sub-pixels are provided at the intersections of the data lines and the gate lines. The second substrate is disposed relative to the first substrate. The black matrix is disposed between the first substrate and the second substrate. The spacer is disposed between the first substrate and the second substrate, at least part of the spacer is disposed in the first region, and at least part of the spacer is disposed in the second region. The distance between the first area and the axis is smaller than the distance between the second area and the axis. The distribution ratio of the spacers in the first area is smaller than the distribution ratio of the spacers in the second area. The distribution ratio of the black matrix in the first area The width is smaller than the width of the black matrix in the second area.

In some embodiments, the above-mentioned curved surface has a maximum radius of curvature R1 and a minimum radius of curvature R2. The radius of curvature of the first region is less than or equal to R1 or greater than (R1+R2)/2, and the radius of curvature of the second region is greater than or equal to R2 or less than or equal to (R1+R2)/2.

In some embodiments, the above-mentioned spacers include a first strip-shaped spacer extending along a first direction and a second strip-shaped spacer extending along a second direction, and the second direction is different from the first direction. The distances between the second strip spacers in the first area and the second area are the same. The distance between the first strip spacers in the first area is greater than the distance between the first strip spacers in the second area.

In some embodiments, the width of the black matrix is greater than or equal to the width of the first strip spacer and greater than or equal to the width of the second strip spacer.

In some embodiments, the first strip spacer intersects the second strip spacer. The number of sub-pixels surrounded by part of the first strip spacer and part of the second strip spacer in the first area is greater than that of part of the first strip spacer and part of the second strip spacer in the second area. The number of sub-pixels surrounded by spacers.

In some embodiments, the display panel further includes a third region, and the distance between the third region and the axis is greater than the distance between the first region and the axis and greater than the distance between the second region and the axis. The distance between the first strip spacers in the third area is greater than the distance between the first strip spacers in the second area.

In some embodiments, a plurality of sub-pixels constitute a pixel, and a black matrix surrounds the pixel in a first area and the sub-pixels in a second area.

In some embodiments, the display panel further includes a third area, the distance between the third area and the axis is greater than the distance between the first area and the axis and greater than the distance between the second area and the axis, and the black matrix is in the third area. Three regions surround the pixels.

In some embodiments, the black matrix has a first strip-shaped black matrix extending along the first direction and a second strip-shaped black matrix extending along the second direction, wherein the first strip-shaped black matrix and the second strip-shaped black matrix At least one of the matrices is the above-mentioned spacer.

In some embodiments, the black matrix has a first strip-shaped black matrix extending along the first direction and a second strip-shaped black matrix extending along the second direction, wherein the width of the first strip-shaped black matrix in the second direction has variation, and the width of the second strip-shaped black matrix in the first direction does not have variation.

Compared with the existing technology, the display panel of the present invention can avoid problems such as color mixing and light leakage, so that there will be no problem of degradation in display quality.

In order to make the above-mentioned features and advantages of the present invention more obvious and understandable, embodiments are given below and described in detail with reference to the accompanying drawings.

Description of the drawings

FIG. 1 is a partial side view of a display panel according to an embodiment.

FIG. 2 is a top-view circuit schematic diagram of an array substrate according to an embodiment.

FIG. 3 is a schematic top view of a color filter substrate according to an embodiment.

4A is a schematic top view of the display panel when it is upright and bent into a curved surface according to an embodiment.

FIG. 4B is a schematic side view of the display panel when it is upright and bent into a curved surface according to an embodiment.

FIG. 5 is a schematic diagram illustrating the design of the black matrix and spacers in the first area and the third area according to an embodiment.

FIG. 6 is a schematic diagram illustrating the design of the black matrix and spacers in the second area according to an embodiment.

7 and 8 are schematic diagrams illustrating the arrangement of spacers according to some embodiments.

9A to 9F are schematic diagrams illustrating the arrangement of spacers according to some embodiments.

10A and 10B are schematic diagrams illustrating the configuration of a black matrix according to some embodiments.

FIG. 11 is a graph illustrating the deviation between two substrates according to an embodiment.

FIG. 12 is a schematic diagram illustrating a black matrix according to an embodiment.

Explanation of main reference symbols:

1410-axis, 421-first region, 422-second region, 811, 812-strip spacer, D1-first direction, D2-second direction.

Detailed ways

The terms "first", "second", ... etc. used in this article do not specifically refer to the order or order, but are only used to distinguish elements or operations described with the same technical terms.

FIG. 1 is a partial side view of a display panel according to an embodiment. FIG. 2 is a top-view circuit schematic diagram of an array substrate according to an embodiment. FIG. 3 is a schematic top view of a color filter substrate according to an embodiment. Referring to FIGS. 1 to 3 , the display panel 100 includes a first substrate 110 and a second substrate 120 . The first substrate 110 is also called an array substrate, and is provided with thin film transistors 111, gate lines 112, data lines 113, pixel electrodes 114, common electrodes (not shown), insulating layers 115, etc. The intersection of the data line 113 and the gate line 112 has a sub-pixel (for example, a sub-pixel P, which includes a corresponding thin film transistor 111, a pixel electrode 114 and a common electrode). For example, the gate line 112 may be formed of a first metal layer, the data line 113 may be formed of a second metal layer, and the pixel electrode and the common electrode may be formed of different transparent conductive layers. The second substrate 120 is also called a color filter substrate, and has a black matrix 121, a color filter 122, etc. arranged on it. A liquid crystal layer LC, a spacer 131, etc. are provided between the first substrate 110 and the second substrate 120. For the sake of simplicity, not all components in the display panel 100 are shown in FIG. 1 . For example, the display panel 100 may also include other optical components such as polarizers, alignment films, brightness enhancement films, etc., or more metal layers, Transparent conductive layer, insulating layer, etc., or various arbitrary components associated with the backlight module.

The gate line 112 is used to turn on/off the corresponding thin film transistor 111, thereby transmitting the signal on the data line 113 to the pixel electrode 114. The voltage between the pixel electrode 114 and the common electrode is used to determine the rotation direction of the liquid crystal molecules in the liquid crystal layer LC. In addition, the black matrix 121 is used to shield the gate lines 112 and the data lines 113, and the color filter 112 can be red, green or blue to determine the color of the sub-pixel P. The spacer layer 131 will abut against the first substrate 110 and/or the second substrate 120. The components or deposits on the first substrate 110 and/or the second substrate 120 can directly contact the spacer 131 to provide a supporting function to maintain LCD gap.

The materials of the first substrate 110 and the second substrate 120 may include glass, polymer, polyethylene terephthalate (PET), polycarbonate (PC), polyethersulfone (polyether) sulfone (PES), triacetyl cellulose (TAC), polymethyl methacrylate (PMMA), polyethylene (polyethylene), cycloolefin polymer (COP), polyimide (PI), and The present invention is not limited to composite materials composed of polycarbonate (PC) and polymethylmethacrylate (PMMA). The materials of the pixel electrode 114 and the common electrode may include indium tin oxide (ITO), indium zinc oxide (indiumzinc oxide, IZO), antimony tin oxide (ATO), fluorine tin oxide, FTO) or other conductive and substantially transparent materials, such as nanometal wires (nanosilver wires, nanocopper wires). The materials of the gate lines 112 and the data lines 113 may include aluminum, copper, titanium, tungsten or other suitable conductive materials. The material of spacer 131 may include any suitable insulating material. The material of black matrix 121 may include any suitable opaque material.

FIG. 4A is a schematic top view of the display panel when it is upright and bent into a curved surface according to an embodiment. FIG. 4B is a schematic side view of the display panel when it is upright and bent into a curved surface according to an embodiment. Referring to FIGS. 4A and 4B , the display panel 100 has an axis 410 in the first direction D1 and is curved into a curved surface 430 based on the axis 410 . Here, the first direction D1 refers to the direction emitted from the paper surface of FIG. 4A , in other words, the direction from the bottom to the top of the display panel 100 in FIG. 4B . The display panel 100 may be divided into at least two areas according to the distance from the axis 410 . Specifically, the distance between the first area 421 and the axis 410 is smaller than the distance between the second area 422 and the axis 410 , and the distance between the second area 422 and the axis 410 is smaller than the distance between the third area 423 and the axis 410 distance.

Curved surface 430 may have different radii of curvature within different areas. Generally speaking, the area closer to the axis 410 has a larger radius of curvature, and the area further away from the axis 410 has a smaller radius of curvature. Here, the radius of curvature of the curved surface 430 may change continuously, that is to say, the radius of curvature may be different even in the same area, or the radius of curvature of the curved surface 430 may be the same in the same area. This is not the case in the present invention. is limited. In some embodiments, the intersection of the curved surface 430 and the axis 410 has a maximum radius of curvature R1, and the intersection of the curved surface 430 and the horizontal line 411 has a minimum radius of curvature R2. The radius of curvature of the first region 421 is less than or equal to R1 or greater than (R1+R2)/2, the radius of curvature of the second region 422 is greater than or equal to R2 or less than or equal to (R1+R2)/2, and the curvature radius of the third region 423 is The radius is also greater than or equal to R2 or less than or equal to (R1+R2)/2. In some embodiments, the radius of curvature of the curved surface 430 may be fixed, for example, each area within the surface may have the same radius of curvature.

In other embodiments, the area closer to the axis 410 has a smaller radius of curvature, and the area further away from the axis 410 has a larger radius of curvature, or the radius of curvature of the curved surface 430 can also be set arbitrarily. The present invention does not Limit the positions of the above-mentioned maximum curvature radius R1 and minimum curvature radius R2. In addition, three regions 421 to 423 are shown in FIG. 4A and FIG. 4B , but in other embodiments, the display panel 100 can also be divided into more or fewer regions, and the present invention is not limited thereto. For example, in some embodiments, the third area 423 can be merged into the second area 422, and the present invention does not limit the size of the areas 421 to 423. In some embodiments, the radius of curvature of the curved surface 430 may be fixed, for example, each area within the surface may have the same radius of curvature. The area close to the axis 410 has a lower spacer distribution ratio than the area far away from the axis.

In particular, the spacers and black matrix can have different settings in different areas. Specifically, the distribution ratio of the spacers in the first area 421 is smaller than the distribution ratio of the spacers in the second area 422 . In some embodiments, the "distribution ratio" refers to the ratio of spacers on the display panel per unit area (for example, per square centimeter, per square millimeter, or other suitable area), that is, dividing the area of the spacers. Divide by the area of the corresponding region. In other embodiments, the spacers may be columnar or strip-shaped. The above-mentioned “distribution ratio” refers to the number of columnar or strip-shaped spacers on the display panel per unit area, that is, the number of spacers is Divide by the area of the corresponding region. When the display panel 100 is in a bent state, the first region 421 close to the central axis 410 is relatively flat, and the tensile stress in this region is smaller than that in the more curved regions 422 or 423. Therefore, a lower level can be set in the first region 421. Distribute proportional spacers to meet the gap variation in this area. The following examples will be given to illustrate the arrangement of spacers and black matrices.

Please refer to Figures 5 and 6. Figure 5 illustrates the design of the black matrix and spacers in the first area 421 and the third area 423 (presented from a top view). For simplicity, only the black matrix is shown here. 121. Spacers and color filters. In FIG. 5 , the spacers include a first strip spacer 511 extending along the first direction D1 and a second strip spacer 512 extending along the second direction D2. The second direction D2 is different from the first direction D1, for example, they are perpendicular to each other or the angle between the first direction D1 and the second direction D2 is greater than 45 degrees. Figure 6 illustrates the design of the black matrix and spacers in the second area 422. The spacers include a first strip spacer 611 extending along the first direction D1 and a second strip spacer extending along the second direction D2. Strip spacers 612. In FIG. 5 and FIG. 6 , the distance between the second strip spacers 512 is the same, the distance between the second strip spacers 612 is the same, and the distance between the second strip spacers 512 is the same as the second strip spacer 512 . The distance between strip spacers 612. However, the distance between the first strip spacers 511 is greater than the distance between the first strip spacers 611 , which makes the distribution ratio of the spacers in FIG. 5 smaller than that in FIG. 6 .

On the other hand, the width of the black matrix 121 in the second direction D2 in FIG. 5 is smaller than the width of the black matrix 121 in the second direction D2 in FIG. 6 because the first substrate 110 and the second substrate 110 are in the second area 422 The offset between the substrates 120 is relatively large, so a wider black matrix 121 is required to avoid light leakage. It is worth noting that the width of the black matrix 121 in the third area 423 is smaller than the width of the black matrix in the second area 422 because the first substrate 110 and the second substrate 120 pass through on both sides of the display panel 100 The sealants are fixed to each other, so the offset between the first substrate 110 and the second substrate 120 in the third area 423 is relatively small, and a relatively narrow black matrix 121 can be designed. Regarding the width of the black matrix 121 in the first direction D1, since the bending offset has no effect, the width can be regarded as equidistant, that is, there is no variation. In addition, the projection of the black matrix 121 on the first substrate 110 overlaps the first strip spacers 511, 611 and the second strip spacers 512, 612, and the width of the black matrix 121 is greater than or equal to the first strip spacer 511 , 611 and the width of the second strip spacers 512, 612, so that the first strip spacers 511, 611 and the second strip spacers 512, 612 can be covered.

On the other hand, in FIG. 5 , the first strip spacer 511 and the second strip spacer 512 intersect each other, and each three sub-pixels are formed by the surrounding first strip spacer 511 and the second strip spacer 512 surrounded by. In FIG. 6 , the first strip spacer 611 and the second strip spacer 612 also intersect each other, but each sub-pixel is surrounded by the surrounding first strip spacer 611 and the second strip spacer 612 . That is to say, the number of sub-pixels surrounded by the first strip spacers 511 and the second strip spacers 512 in the first area 421 and the third area 423 will be more than the number of the first strip spacers in the second area 422. The number of sub-pixels surrounded by the spacers 611 and the second strip spacers 612. To put it another way, in Figure 5 the spacer surrounds one pixel (including three sub-pixels), but in Figure 6 the spacer surrounds each sub-pixel. Because the display has areas with different curvatures under the curved surface, by designing spacers so that they have different density due to different areas surrounding the pixels, the gap between liquid crystal molecules caused by uneven stress can be better controlled ( Gap) variation helps improve the optical problems caused by the curved surface of the display. In some embodiments, the curvature radius of the curved display may be fixed. For example, each area within the surface may have the same curvature radius. However, it may also face stress phenomena and gap variations caused by bending. Therefore, it can be designed to The spacer distribution ratio in the area close to the central axis is lower than that in the area far from the central axis.

7 and 8 are schematic diagrams showing the arrangement of spacers according to some embodiments. For the sake of simplicity, only the spacers are shown here. In the embodiment of FIG. 7 , the first area 421 includes strip spacers 702 and columnar spacers 704 extending along the first direction, and the second area 422 includes strip spacers 702 extending along the first direction D1 . Strip spacers 712 and column spacers 714, wherein the column spacers 714 extend from the corresponding strip spacers 712. In other embodiments, the strip spacers 712 can be a simple strip, or The column spacers 714 and the strip spacers 712 are not connected to each other. As shown in FIG. 7 , the distance between the strip spacers 702 is greater than the distance between the strip spacers 712 , which makes the distribution ratio of the spacers in the first area 421 lower than that of the spacers in the second area 422 . distribution ratio. In addition, the distribution density of the columnar spacers 704 in the first area 421 is the same as the distribution density of the columnar spacers 714 in the second area 422 . The difference between Figure 8 and Figure 7 is that Figure 8 also includes strip spacers 811 and 812 extending along the second direction. However, the description of the spacers in Figure 8 can refer to Figures 5 and 6, and will not be described again here. . Through the arrangement of strip spacers, variation in the gap between the two substrates can be avoided, which in turn affects the liquid crystal molecules.

9A to 9F are schematic diagrams illustrating the arrangement of spacers according to some embodiments. Color filters are also shown here to describe the distribution ratio of the spacers, and the axis 410 is located on the display panel 100 of the present invention. At a position in the middle of the second direction D2, for the sake of clarity, the axis 410 is not repeatedly drawn in FIGS. 9B to 9F. Please refer to FIG. 9A. The spacers in the first area 421 surround the pixels, and the spacers in the second area 422 surround the sub-pixels. For this embodiment, please refer to the description of FIG. 5 and FIG. 6, which will not be repeated here. Repeat.

Referring to FIG. 9B , every 9 sub-pixels in the area 901 are surrounded by surrounding strip spacers, and these 9 sub-pixels are arranged along the second direction D2. In the area 902, every three sub-pixels are surrounded by surrounding strip spacers, and these three sub-pixels are arranged along the second direction D2. In area 903, each sub-pixel is surrounded by strip spacers.

Please refer to FIG. 9C . In area 421 , every 6 sub-pixels are surrounded by surrounding strip spacers, and these 6 sub-pixels are arranged in 3 columns and 2 rows. In the area 422, every two sub-pixels are surrounded by surrounding strip spacers, and these two sub-pixels are arranged along the first direction D1.

Please refer to FIG. 9D. In the area 901, every 18 sub-pixels are surrounded by surrounding strip spacers, and these 18 sub-pixels are arranged in 9 columns and 2 rows. Every 6 sub-pixels in the area 902 are surrounded by surrounding strip spacers, and these 6 sub-pixels are arranged in 3 columns and 2 rows. In the area 903, every two sub-pixels are surrounded by surrounding strip spacers, and these two sub-pixels are arranged along the first direction D1.

Referring to FIG. 9E , every 12 sub-pixels in area 421 are surrounded by surrounding strip spacers, and these 12 sub-pixels are arranged in 3 columns and 4 rows. In the area 422, every four sub-pixels are surrounded by surrounding strip spacers, and these four sub-pixels are arranged along the first direction D1.

Please refer to FIG. 9F. In this embodiment, there are only strip spacers extending along the first direction D1 and no strip spacers extending along the second direction D2. In the area 901, the distance between the strip spacers is The distance between strip spacers in area 902 is 3 sub-pixels, and the distance between strip spacers in area 903 is 1 sub-pixel. Along the second direction D2, it can be found that the strip spacers in different areas have different corresponding distances.

10A and 10B are schematic diagrams illustrating the configuration of a black matrix according to some embodiments, in which only spacers, black matrices and color filters are shown. Referring to FIG. 10A , in this embodiment, the black matrix 121 includes a first strip-shaped black matrix 1001 extending along the first direction D1 and a second strip-shaped black matrix 1002 extending along the second direction D2. Among them, the first strip-shaped black matrix 1001 can be disposed on the first substrate 110 or the second substrate 120, which can also be used to replace the strip-shaped spacers originally extending along the first direction D1, wherein the The strip-shaped black matrix 1001 will abut components or deposits on the first substrate 110 and/or the second substrate 120 . From the perspective of the normal vector 1010 of the first substrate 110, the first strip-shaped black matrix 1001 and the second strip-shaped black matrix 1002 are arranged to surround the sub-pixels. On the other hand, in other embodiments, the second strip-shaped black matrix 1002 can be disposed on the second substrate 120 or on the first substrate 110 . In this embodiment, in addition to serving as a spacer, the first strip-shaped black matrix against the first substrate 110 and/or the second substrate 120 has another advantage of reducing process costs and shortening the process time.

In the embodiment of FIG. 10B , the first strip-shaped black matrix 1001 and the second strip-shaped black matrix 1002 can be disposed between the first substrate 110 and the second substrate 120 , which can also replace the original strip-shaped spacers. That is to say, the first strip-shaped black matrix 1001 and the second strip-shaped black matrix 1002 will abut components or deposits on the first substrate 110 and/or the second substrate 120 . In some embodiments, the second substrate 120 includes a color filter, but does not include the first strip-shaped black matrix 1001 or the second strip-shaped black matrix 1002; in other embodiments, the second substrate 120 includes a color filter. 120 includes a color filter and a first strip-shaped black matrix 1001 and a second strip-shaped black matrix 1002.

In some embodiments, the arrangement of the black matrix can also be similar to the arrangement of the spacers in FIGS. 5 to 9 , but the black matrix is not limited to being arranged on the second substrate 120 . Alternatively, when the black matrix replaces at least part of the spacers (as in the embodiments of FIGS. 10A and 10B ), the black matrix can also adopt the arrangement of FIGS. 5 to 9 . For example, in some embodiments, the number of sub-pixels surrounded by the black matrix in the first area 421 and the third area 423 may be greater than the number of sub-pixels surrounded by the black matrix in the second area 422 . In some embodiments, the black matrix surrounds one pixel (including three sub-pixels) in the first area 421 and the third area 423, and the black matrix surrounds one sub-pixel in the second area 422.

FIG. 11 is a graph illustrating the deviation between two substrates according to an embodiment. Please refer to FIG. 4A and FIG. 11 . The horizontal axis in the graph represents the distance from the axis 410 . Positive values represent the area to the right of the axis 410 , and negative values represent the area to the left of the axis 410 . The vertical axis of FIG. 11 represents the offset between the first substrate 110 and the second substrate 120 . The greater the absolute value of the positive offset, the second substrate 120 is on the right side away from the axis 410 relative to the first substrate 110 . The larger the absolute value of the negative offset, the greater the offset is, indicating that the second substrate 120 is offset to the left away from the axis 410 relative to the first substrate 110 . It can be seen from Figure 11 that the offset is low near the axis 410, and there is a large offset in the area far away from the axis 410, but the absolute value of the offset will be reduced on both sides of the display panel. This is because the first substrate 110 and the second substrate 120 are bonded to each other through sealant on both sides of the display panel, so the offset close to the boundary area can be improved. In addition, the three curves 1101 to 1103 in Figure 11 correspond to different curvature radii respectively. The curvature radii from small to large are curves 1101, 1102, and 1103. In this embodiment, curve 1101 corresponds to 600 mm. As for the radius of curvature, the curve 1102 corresponds to the radius of curvature of 800 mm, and the curve 1103 corresponds to the radius of curvature of 1000 mm. When the radius of curvature is smaller, it means that the display panel is bent to a greater extent, thus causing more deflection. Here, a function can be used to feed back the data in Figure 11. This function can be linear or nonlinear, and the present invention is not limited to this. For example, the curve 1101 can be approximated by a straight-line function, which is expressed as y=-0.5238x+0.9114, where x represents the horizontal axis coordinate and y represents the vertical axis coordinate. After obtaining this function, you can input the coordinate x into this function to obtain the offset y. In this way, the corresponding offset value can be calculated at any position on the display panel. Then, the width of the black matrix can be determined based on the calculated offset. For example, the width of the black matrix should be proportional to the offset. For example, FIG. 12 is a schematic diagram illustrating a black matrix according to an embodiment. In the embodiment of FIG. 12 , the width of the black matrix at a position of the display panel 100 of the present invention varies with the relationship between the position and the axis 410 . However, the width of the black matrix in the vertical direction changes horizontally due to the bending offset. For this reason, the vertical width of the black matrix has minimal impact on light leakage, and its width can be regarded as equidistant. However, in other embodiments, the black matrix can also be divided into multiple areas, and the width in each area is the same. This has been explained in detail in Figures 5 and 6, and will not be described again here. In some embodiments, the black matrix can also be set to have the same width at each position, but this width is set according to the maximum value of the offset, so that no light leakage occurs no matter which position of the display panel. situation. In some embodiments, each curve 1101 to 1103 in Figure 11 corresponds to a function, so which curve to use can be determined first based on the radius of curvature, and then the coordinate x is used to obtain the offset.

Although the present invention has been disclosed in the above embodiments, they are not intended to limit the present invention. Any person skilled in the art can make some modifications and modifications without departing from the spirit and scope of the present invention. Therefore, The protection scope of the present invention shall be determined by the claims.

Claims (9)

1. A display panel, the display panel has an axis in a first direction and is bent into a curved surface along the axis, characterized in that the display panel has a first area and a second area, and the display panel includes: A first substrate, a data line and a gate line are provided on the first substrate, and a sub-pixel is provided at the intersection of the data line and the gate line; a second substrate arranged relative to the first substrate; A black matrix, disposed between the first substrate and the second substrate; and Spacers are disposed between the first substrate and the second substrate, wherein at least part of the spacers is disposed in the first region, and at least part of the spacers is disposed in the second region Inside, The distance between the first area and the axis is smaller than the distance between the second area and the axis, and the distribution ratio of the spacers in the first area is smaller than the distribution ratio of the spacers in the The distribution ratio in the second area, the width of the black matrix in the first area is smaller than the width of the black matrix in the second area, The display panel further includes a third region, the distance between the third region and the axis being greater than the distance between the first region and the axis and greater than the distance between the second region and the axis. distance, The spacers include first strip-shaped spacers extending along the first direction, and the distance between the first strip-shaped spacers in the third region is greater than that in the second region. The distance between the first strip spacers. 2. The display panel according to claim 1, wherein the curved surface has a maximum curvature radius R1 and a minimum curvature radius R2, wherein the curvature radius of the first region is less than or equal to R1 or greater than (R1+R2) /2, the radius of curvature of the second region is greater than or equal to R2 or less than or equal to (R1+R2)/2. 3. The display panel according to claim 1, wherein the spacers further comprise second strip spacers extending along a second direction, the second direction being different from the first direction, The distances between the second strip spacers in the first area and the second area are the same, The distance between the first strip spacers in the first area is greater than the distance between the first strip spacers in the second area. 4. The display panel according to claim 3, wherein the width of the black matrix is greater than or equal to the width of the first strip spacer and greater than or equal to the width of the second strip spacer. 5. The display panel according to claim 3, wherein the first strip spacer intersects the second strip spacer, The number of sub-pixels surrounded by part of the first strip spacer and part of the second strip spacer in the first area is greater than that of the part in the second area. The number of sub-pixels surrounded by the first strip spacer and part of the second strip spacer. 6. The display panel according to claim 1, wherein a plurality of the sub-pixels constitute a pixel, and the black matrix surrounds the pixel in the first area and surrounds all the sub-pixels in the second area. Described sub-pixel. 7. The display panel of claim 6, wherein the black matrix surrounds the pixels in the third area. 8. The display panel according to claim 1, wherein the black matrix has a first strip-shaped black matrix extending along the first direction and a second strip-shaped black matrix extending along the second direction. , wherein at least one of the first strip-shaped black matrix and the second strip-shaped black matrix is the spacer. 9. The display panel according to claim 1, wherein the black matrix has a first strip-shaped black matrix extending along the first direction and a second strip-shaped black matrix extending along the second direction. , wherein the width of the first strip-shaped black matrix in the second direction has variation, and the width of the second strip-shaped black matrix in the first direction has no variation.