Liquid crystal display panel and display device

Abstract

The invention discloses a liquid crystal display panel and a display device, the liquid crystal display panel comprises a display area and a frame area arranged around the display area, and the liquid crystal display panel further comprises an array substrate and an opposite substrate, the liquid crystal display panel further comprises a color resistance layer, an organic flat layer and a shading spacer layer. A part of the color resistance layer is located in the frame area. The organic flat layer covers the color resistance layer; the shading spacer layer comprises a supporting part and a shading part, and the shading part is arranged on the surface, away from the array substrate, of the organic flat layer; wherein the sum of the thickness of a part of the color resistance layer located in the frame area and the thickness of a part of the organic flat layer located in the frame area is smaller than the sum of the thickness of a part of the color resistance layer located in the display area and the thickness of a part of the organic flat layer located in the display area. The liquid crystal display panel has the advantage that the problem that the periphery of the liquid crystal display panel in a conventional scheme is uneven in color brightness can be solved.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a liquid crystal display panel and display device. Background Technology

[0002] COA (Color Filter on Array) technology involves placing a color resist layer on a TFT substrate. In manufacturing LCD panels using COA, to reduce the number of photomasks and simplify the process, BPS (Black Photo Spacer) technology is employed. This involves combining the photomask (BM) and support pillars (PS) into a single photomask, fabricated on the array substrate. However, due to the stacking of color resists in the bezel area of ​​the LCD panel, the edge difference of the light-shielding layer in the bezel area is large. When fabricating the alignment film located on the array substrate side, the PI solution used to fabricate the alignment film is prone to backflow and accumulation at the edges of the light-shielding layer, causing uneven color brightness around the edges of the LCD panel. Summary of the Invention

[0003] Embodiments of this application provide a liquid crystal display panel and a display device to improve the problem of uneven color brightness at the periphery of conventional liquid crystal display panels.

[0004] In a first aspect, embodiments of this application provide a liquid crystal display panel, including a display area and a border area surrounding the display area. The liquid crystal display panel further includes an array substrate and a counter substrate disposed opposite to the array substrate. The liquid crystal display panel also includes: A color resist layer is disposed on the side of the array substrate near the opposing substrate, and a portion of the color resist layer is located in the border area; An organic planarization layer, wherein the organic planarization layer is covered with a color resist layer; A light-shielding pad layer, the light-shielding pad layer including a support portion and a light-shielding portion, the support portion and the light-shielding portion being spaced apart, the support portion being located in the display area, the light-shielding portion being located in the border area, the support portion being connected to the opposing substrate and the color resist layer, and the light-shielding portion being disposed on a surface of the organic planarization layer away from the array substrate; Wherein, the sum of the thickness of the color resist layer located in a portion of the border area and the thickness of the organic planarization layer located in a portion of the border area is less than the sum of the thickness of the color resist layer located in a portion of the display area and the thickness of the organic planarization layer located in a portion of the display area.

[0005] Furthermore, a portion of the organic planarization layer covers a portion of the color resist layer located in the display area, and a portion of the organic planarization layer covers a portion of the color resist layer located in the border area. The thickness of a portion of the organic planarization layer covering the surface of the color resist layer in the border area is less than the thickness of a portion of the organic planarization layer covering the surface of the color resist layer in the display area, and the absolute value of the difference between the thickness of the portion of the organic planarization layer covering the surface of the color resist layer in the border area and the thickness of the portion of the organic planarization layer covering the surface of the color resist layer in the display area is not less than 0.5 μm.

[0006] Furthermore, the color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are located in the display area, and the second color resists are located in the border area. The thickness of the second color resist is less than the thickness of the first color resist that has the same color as the second color resist among the plurality of first color resists, and the difference between the thickness of the first color resist that has the same color as the second color resist and the thickness of the second color resist is 0.2um~0.5um. A portion of the organic planarization layer covers a portion of the first color resist and the second color resist.

[0007] Furthermore, a gap region is formed between the first color resist and the second color resist, the width of the gap region being not less than 3000um, wherein a portion of the organic flat portion and a portion of the light-shielding portion fill the gap region.

[0008] Furthermore, the light-shielding portion includes a first light-shielding sub-portion, a portion of which fills the interval region, and a first step difference exists between the first light-shielding sub-portion and a portion of the organic planarization layer covering the first color resist, the first step difference being no greater than 0.8 μm; In a top-view perspective of the liquid crystal display panel, the first light-shielding sub-part does not extend beyond the edge of the interval area.

[0009] Furthermore, the light-shielding part also includes a second light-shielding sub-part, which is connected to the first light-shielding sub-part, and there is a second step difference between the second light-shielding sub-part and the first light-shielding sub-part, the second step difference being no greater than 0.5um; In a top-view perspective of the liquid crystal display panel, the second light-shielding sub-part overlaps with at least a portion of the second color resist.

[0010] Furthermore, in the direction from the array substrate to the opposing substrate, a portion of the organic planarization layer covering the first color resist has a surface away from the array substrate that is lower than a surface away from the array substrate of the first light-shielding sub-part, and the surface away from the array substrate of the first light-shielding sub-part is lower than a surface away from the array substrate of the second light-shielding sub-part.

[0011] Furthermore, the liquid crystal display panel also includes: A first alignment layer is disposed on a surface of the organic planarization layer away from the array substrate; A second alignment layer is disposed on a surface of the opposing substrate near the array substrate; The first alignment layer covers at least a portion of the first light-blocking sub-part, the second light-blocking sub-part, and a portion of the organic planarization layer located on the first color resist.

[0012] Furthermore, the plurality of first color resists include a red sub-color resist, a green sub-color resist, and a blue sub-color resist, and the second color resist is a red color resist or a green color resist, and the second color resist is a different color from the adjacent first color resist.

[0013] Secondly, embodiments of this application provide a display device, the display device including the aforementioned liquid crystal display panel and a backlight module, the liquid crystal display panel being disposed on the light-emitting side of the backlight module.

[0014] The beneficial effects of this application are: This application provides a display panel and display device. A portion of the color resist layer is located in the bezel area. An organic planarization layer covers the color resist layer. A light-shielding spacer layer includes a support portion and a light-shielding portion, spaced apart. The support portion is located in the display area, and the light-shielding portion is located in the bezel area. The support portion is connected to the opposing substrate and the color resist layer. The light-shielding portion is disposed on a surface of the organic planarization layer away from the array substrate. The sum of the thickness of the color resist layer in the portion located in the bezel area and the thickness of the organic planarization layer in the portion located in the bezel area is less than the thickness of the portion located in the display area. The sum of the thickness of the color resist layer and the thickness of the organic planarization layer located in a portion of the display area reduces the thickness of the color resist layer or the organic planarization layer located in the bezel area. This reduces the step difference between the edge of the light-shielding portion and the organic planarization layer covering the color resist layer, lowering the risk of accumulation at the edge of the light-shielding portion caused by the backflow of PI liquid used to make the alignment film. This improves the problem of uneven color brightness around the periphery of the liquid crystal display panel. Furthermore, since a portion of the color resist layer is located in the bezel area, the color resist layer can block the light from the backlight module of the display device, thus helping to improve the light leakage problem of the display device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the display device of this application; Figure 2 yes Figure 1 A top view of the liquid crystal display panel of the display device shown; Figure 3 yes Figure 1 A schematic diagram of a first structure of the liquid crystal display panel of the display device shown; Figure 4 yes Figure 1 A schematic diagram of a second structure of the liquid crystal display panel of the display device shown; Figure 5 yes Figure 4 The diagram shows a schematic of the structure of the liquid crystal display panel of the display device, which includes a first alignment layer and a second alignment layer.

[0016] Explanation of reference numerals in the attached figures: 10-Liquid crystal display panel; 100-Array substrate; 200-Opposing substrate; 300-Color resist layer; 310-First color resist; 320-Second color resist; 400-Organic planarization layer; 500-Light-shielding spacer layer; 510-Support portion; 520-Light-shielding portion; 521-First light-shielding sub-part; 522-Second light-shielding sub-part; 600-First alignment layer; 700-Second alignment layer; 20-Backlight module.

[0017] AA - Display area; NA - Border area. Detailed Implementation

[0018] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings. The technical solutions described below are for illustrative purposes only and should not be construed as limiting the scope of protection of this application.

[0019] Furthermore, the terms "first," "second," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different technical features. The terms "multiple" and similar words indicate two or more unless otherwise expressly specified.

[0020] The first embodiment of this application provides a first display device, see reference. Figure 1 , Figure 2 , Figure 3 The display device includes a liquid crystal display panel 10 and a backlight module 20. The liquid crystal display panel 10 is disposed on the light-emitting side of the backlight module 20. The liquid crystal display panel 10 includes a display area AA and a border area NA disposed around the display area AA. The liquid crystal display panel 10 also includes an array substrate 100 and an opposing substrate 200 disposed opposite to the array substrate 100. The liquid crystal display panel 10 also includes a color resist layer 300, an organic planarization layer 400, and a light-shielding pad layer 500.

[0021] Specifically, the color resist layer 300 is disposed on the side of the array substrate 100 near the opposing substrate 200, and a portion of the color resist layer 300 is located in the border area NA; the organic planarization layer 400 covers a portion of the first color resist 310 and the second color resist 320; the light-shielding pad layer 500 includes a support portion 510 and a light-shielding portion 520, the support portion 510 and the light-shielding portion 520 are spaced apart, the support portion 510 is located in the display area AA, and the light-shielding portion 520 is located in the border area NA. The support portion 510 is located near the opposing substrate 200 and the color resist layer 300. A resist layer 300 is connected, and the light-shielding portion 520 is disposed on a surface of the organic planarization layer 400 away from the array substrate 100; wherein, a portion of the organic planarization layer 400 covers a portion of the color resist layer 300 located in the display area AA, a portion of the organic planarization layer 400 covers a portion of the color resist layer 300 located in the border area NA, and the thickness c of a portion of the organic planarization layer 400 covering the color resist layer 300 in the border area NA is less than the thickness d of a portion of the organic planarization layer 400 covering the color resist layer 300 in the display area AA.

[0022] COA (Color Filter on Array) technology involves placing a color resist layer on a TFT substrate. In manufacturing LCD panels using COA, to reduce the number of photomasks and simplify the process, BPS (Black Photo Spacer) technology is employed. This involves combining the light-shielding layer (BM) and support pillars (PS) into a single photomask, fabricated on the array substrate. However, due to the stacking of color resists in the bezel area of ​​the LCD panel, the edge difference of the light-shielding layer in the bezel area is large. When fabricating the alignment film located on the array substrate side, the PI solution used to fabricate the alignment film is prone to backflow and accumulation at the edges of the light-shielding layer, causing uneven color brightness around the edges of the LCD panel. Therefore, the technical solution of this application provides a display device, wherein a portion of the color resist layer 300 is located in the border area NA, the organic planarization layer 400 covers the color resist layer 300, and the light-shielding pad layer 500 includes a support portion 510 and a light-shielding portion 520, the support portion 510 and the light-shielding portion 520 being spaced apart, the support portion 510 being located in the display area AA, and the light-shielding portion 520 being located in the border area NA. The support portion 510 is connected to the opposing substrate 200 and the color resist layer 300, and the light-shielding portion 520 is disposed on a surface of the organic planarization layer 400 away from the array substrate 100; a portion of the organic planarization layer 400 covers a portion of the color resist layer 300 located in the display area AA, and a portion of the organic planarization layer 400 covers a portion of the color resist layer 300 located in the border area NA, covering... The thickness c of the organic planarization layer 400 on a portion of the surface of the color resist layer 300 in the border area NA is less than the thickness d of the organic planarization layer 400 on a portion of the surface of the color resist layer 300 covering the display area AA; that is, the thickness of the portion of the organic planarization layer 400 in the border area NA is reduced, thereby reducing the step difference between the edge of the light-shielding portion 520 and the organic planarization layer 400 covering the color resist layer 300, reducing the risk of accumulation at the edge of the light-shielding portion 520 caused by the backflow of PI liquid used to make the alignment film, thereby improving the problem of uneven color brightness around the liquid crystal display panel 10; and since a portion of the color resist layer 300 is located in the border area NA, the color resist layer 300 can block the light from the backlight module 20 of the display device, thereby helping to improve the light leakage problem of the display device.

[0023] In this embodiment, the absolute value of the difference between the thickness c of a portion of the organic planarization layer 400 covering the surface of the color resist layer 300 in the border area NA and the thickness d of a portion of the organic planarization layer 400 covering the surface of the color resist layer 300 in the display area AA is not less than 0.5 μm. By setting the absolute value of the difference between the thickness c of a portion of the organic planarization layer 400 covering the surface of the color resist layer 300 in the border area NA and the thickness d of a portion of the organic planarization layer 400 covering the surface of the color resist layer 300 in the display area AA is not less than 0.5 μm, the step difference between the edge of the light-shielding portion 520 and the organic planarization layer 400 covering the color resist layer 300 can be effectively reduced.

[0024] Preferably, the absolute value of the difference between the thickness c of a portion of the organic planarization layer 400 covering the surface of the color resist layer 300 in the border area NA and the thickness d of a portion of the organic planarization layer 400 covering the surface of the color resist layer 300 in the display area AA is 0.5 μm, 0.51 μm, 0.52 μm, 0.53 μm, 0.54 μm, 0.55 μm, 0.56 μm, 0.57 μm, 0.58 μm, 0.59 μm, 0.60 μm, 0.61 μm, 0.62 μm, 0.63 μm, 0.64 μm, 0.65 μm, 0.66 μm, 0.67 μm, 0.68 μm, 0.69 μm, 0.70 μm, 0.71 μm, 0.72 μm, 0.73 μm, 0.74 μm, 0.75 μm, 0.76 μm, 0.77 μm, 0.78 μm, 0.79 μm, or 0.80 μm.

[0025] In this embodiment, the material of the light-shielding pad layer 500 is a black light-resist material.

[0026] It is understood that the light-shielding spacer layer 500 is prepared using black photoresist (black photo spacer) technology. The black photoresist technology is used to form the light-shielding spacer layer 500 in one photolithography process. The light-shielding spacer layer 500 replaces the original BM (Black Matrix) and PS (Photo Spacer). Furthermore, the light-shielding spacer layer 500 replaces the functions of the original BM and PS. The BM is used to solve the light leakage problem in the frame area NA, and the PS plays a supporting role in the spacer area Q between the array substrate 100 and the opposing substrate 200 to fill the liquid crystal.

[0027] The second embodiment of this application provides a second display device, see reference. Figure 1 , Figure 2 , Figure 3The display device includes a liquid crystal display panel 10 and a backlight module 20. The liquid crystal display panel 10 is disposed on the light-emitting side of the backlight module 20. The liquid crystal display panel 10 includes a display area AA and a border area NA disposed around the display area AA. The liquid crystal display panel 10 also includes an array substrate 100 and an opposing substrate 200 disposed opposite to the array substrate 100. The liquid crystal display panel 10 also includes a color resist layer 300, an organic planarization layer 400, and a light-shielding pad layer 500.

[0028] Specifically, the color resist layer 300 is disposed on the side of the array substrate 100 near the opposing substrate 200, and a portion of the color resist layer 300 is located in the border area NA; the organic planarization layer 400 covers a portion of the first color resist 310 and the second color resist 320; the light-shielding pad layer 500 includes a support portion 510 and a light-shielding portion 520, the support portion 510 and the light-shielding portion 520 being spaced apart, the support portion 510 being located in the display area AA, the light-shielding portion 520 being located in the border area NA, and the support portion 510 being connected to the opposing substrate 200 and the color resist layer 300. The light-shielding portion 520 is disposed on a surface of the organic planarization layer 400 away from the array substrate 100; wherein, the color resist layer 300 includes a plurality of first color resists 310 and a plurality of second color resists 320, the first color resists 310 are located in the display area AA, the second color resists 320 are located in the border area NA, and the thickness a of the second color resist 320 is less than the thickness b of the first color resist 310 that has the same color as the second color resist 320; wherein, a portion of the organic planarization layer 400 covers a portion of the first color resist 310 and the second color resist 320.

[0029] COA (Color Filter on Array) technology involves placing a color resist layer on a TFT substrate. In manufacturing LCD panels using COA, to reduce the number of photomasks and simplify the process, BPS (Black Photo Spacer) technology is employed. This involves combining the light-shielding layer (BM) and support pillars (PS) into a single photomask, fabricated on the array substrate. However, due to the stacking of color resists in the bezel area of ​​the LCD panel, the edge difference of the light-shielding layer in the bezel area is large. When fabricating the alignment film located on the array substrate side, the PI solution used to fabricate the alignment film is prone to backflow and accumulation at the edges of the light-shielding layer, causing uneven color brightness around the edges of the LCD panel. Therefore, the technical solution of this application provides a display device, wherein a portion of the color resist layer 300 is located in the border area NA, the organic planarization layer 400 covers the color resist layer 300, and the light-shielding pad layer 500 includes a support portion 510 and a light-shielding portion 520, the support portion 510 and the light-shielding portion 520 being spaced apart, the support portion 510 being located in the display area AA, the light-shielding portion 520 being located in the border area NA, the support portion 510 being connected to the opposing substrate 200 and the color resist layer 300, and the light-shielding portion 520 being disposed on a surface of the organic planarization layer 400 away from the array substrate 100; the color resist layer 300 includes a plurality of first color resists 310 and a plurality of second color resists 320, the first color resists 310 being located in the display area AA, the second color resists 320 being located in the border area NA, and the thickness of the second color resists 320 being... a is less than the thickness b of the first color resist 310 that has the same color as the second color resist 320; wherein, a portion of the organic planarization layer 400 covers a portion of the first color resist 310 and the second color resist 320, that is, the thickness of the second color resist 320 located in the border area NA is reduced, thereby reducing the step difference between the edge of the light-shielding portion 520 and the portion of the organic planarization layer 400 covering the second color resist 320, reducing the risk of accumulation at the edge of the light-shielding portion 520 caused by the backflow of PI liquid used to make the alignment film, thereby improving the problem of uneven color brightness around the liquid crystal display panel 10; and since the second color resist 320 is located in the border area NA, the second color resist 320 can block the light of the backlight module 20 of the display device, thereby helping to improve the problem of light leakage of the display device.

[0030] In this embodiment, the difference between the thickness b of the first color resist 310 that has the same color as the second color resist 320 and the thickness a of the second color resist 320 is 0.2µm to 0.5µm. By setting the difference between the thickness b of the first color resist 310 that has the same color as the second color resist 320 and the thickness a of the second color resist 320 to 0.2µm, the step difference between the edge of the light-shielding portion 520 and the organic planarization layer 400 covering the color resist layer 300 can be effectively reduced. Preferably, the difference between the thickness b of the first color resist 310 that has the same color as the second color resist 320 and the thickness a of the second color resist 320 is 0.2um, 0.21um, 0.22um, 0.23um, 0.24um, 0.25um, 0.26um, 0.27um, 0.28um, 0.29um, 0.30um, 0.31um, 0.32um, 0.33um, 0.34um, 0.35um, 0.36um, 0.37um, 0.38um, 0.39um, 0.40um, 0.41um, 0.42um, 0.43um, 0.44um, 0.45um, 0.46um, 0.47um, 0.48um, 0.49um, or 0.50um.

[0031] The third embodiment of this application provides a third display device. The third embodiment is similar to the first or second embodiment, but differs from the first or second embodiment in that it refers to... Figure 1 , Figure 2 , Figure 3 A portion of the organic planarization layer 400 covers a portion of the color resist layer 300 located in the display area AA, and a portion of the organic planarization layer 400 covers a portion of the color resist layer 300 located in the border area NA. The thickness c of a portion of the surface of the organic planarization layer 400 covering the color resist layer 300 in the border area NA is less than the thickness d of the portion of the surface of the organic planarization layer 400 covering the color resist layer 300 in the display area AA. The color resist layer 300 includes a plurality of first color resists 310 and a plurality of second color resists 320. The first color resists 310 are located in the display area AA, and the second color resists 320 are located in the border area NA. The thickness a of the second color resist 320 is less than the thickness b of the first color resist 310 that has the same color as the second color resist 320. A portion of the organic planarization layer 400 covers a portion of the first color resist 310 and the second color resist 320.

[0032] COA (Color Filter on Array) technology involves placing a color resist layer on a TFT substrate. In manufacturing LCD panels using COA, to reduce the number of photomasks and simplify the process, BPS (Black Photo Spacer) technology is employed. This involves combining the light-shielding layer (BM) and support pillars (PS) into a single photomask, fabricated on the array substrate. However, due to the stacking of color resists in the bezel area of ​​the LCD panel, the edge difference of the light-shielding layer in the bezel area is large. When fabricating the alignment film located on the array substrate side, the PI solution used to fabricate the alignment film is prone to backflow and accumulation at the edges of the light-shielding layer, causing uneven color brightness around the edges of the LCD panel.Therefore, the technical solution of this application provides a display device, wherein a portion of the color resist layer 300 is located in the border area NA, the organic planarization layer 400 covers the color resist layer 300, and the light-shielding pad layer 500 includes a support portion 510 and a light-shielding portion 520, the support portion 510 and the light-shielding portion 520 being spaced apart, the support portion 510 being located in the display area AA, the light-shielding portion 520 being located in the border area NA, the support portion 510 being connected to the opposing substrate 200 and the color resist layer 300, and the light-shielding portion 520 being disposed in the border area NA. The organic planarization layer 400 is located away from a surface of the array substrate 100; a portion of the organic planarization layer 400 covers a portion of the color resist layer 300 located in the display area AA, and a portion of the organic planarization layer 400 covers a portion of the color resist layer 300 located in the border area NA. The thickness c of a portion of the organic planarization layer 400 covering the color resist layer 300 in the border area NA is less than the thickness d of a portion of the organic planarization layer 400 covering the color resist layer 300 in the display area AA; and the color resist layer 300 includes a plurality of first color resists 310 and a plurality of second color resists 320, the first color resists 310 being located in the display area AA, and the second color resists 320 being located in the border area NA. The thickness a of the second color resist 320 is less than the thickness b of the first color resist 310 that has the same color as the second color resist 320; wherein, a portion of the organic planarization layer 400 covers a portion of the first color resist 310 and the second color resist 320, that is, the thickness of the portion of the organic planarization layer 400 located in the border area NA and the second color resist 320 are reduced. The thickness of the color resist 320 reduces the step difference between the edge of the light-shielding portion 520 and the organic planarization layer 400 covering the second color resist 320, thereby reducing the risk of accumulation at the edge of the light-shielding portion 520 caused by the backflow of the PI liquid used to make the alignment film, thus improving the problem of uneven color brightness around the liquid crystal display panel 10; and since the second color resist 320 is located in the frame area NA, the second color resist 320 can block the light from the backlight module 20 of the display device, thereby helping to improve the problem of light leakage of the display device.

[0033] In this embodiment, the difference between the thickness b of the first color resist 310 that has the same color as the second color resist 320 and the thickness a of the second color resist 320 is 0.2um to 0.5um. Preferably, the difference between the thickness b of the first color resist 310 that has the same color as the second color resist 320 and the thickness a of the second color resist 320 is 0.2um, 0.21um, 0.22um, 0.23um, 0.24um, 0.25um, 0.26um, 0.27um, 0.28um, 0.29um, 0.30um, 0.31um, 0.32um, 0.33um, 0.34um, 0.35um, 0.36um, 0.37um, 0.38um, 0.39um, 0.40um, 0.41um, 0.42um, 0.43um, 0.44um, 0.45um, 0.46um, 0.47um, 0.48um, 0.49um, or 0.50um.

[0034] In this embodiment, the absolute value of the difference between the thickness of a portion of the organic planarization layer 400 covering the surface of the color resist layer 300 in the border area NA and the thickness of a portion of the organic planarization layer 400 covering the surface of the color resist layer 300 in the display area AA is not less than 0.5 μm. Preferably, the absolute value of the difference between the thickness of the organic planarization layer 400 covering a portion of the surface of the color resist layer 300 covering the border area NA and the thickness of the organic planarization layer 400 covering a portion of the surface of the color resist layer 300 covering the display area AA is 0.5um, 0.51um, 0.52um, 0.53um, 0.54um, 0.55um, 0.56um, 0.57um, 0.58um, 0.59um, 0.60um, 0.61um, 0.62um, 0.63um, 0.64um, 0.65um, 0.66um, 0.67um, 0.68um, 0.69um, 0.70um, 0.71um, 0.72um, 0.73um, 0.74um, 0.75um, 0.76um, 0.77um, 0.78um, 0.79um, or 0.80um.

[0035] In this embodiment, reference Figure 4A gap region Q is formed between the first color resist 310 and the second color resist 320, wherein a portion of the light-shielding portion 520 is located within the gap region Q, and the width e of the gap region Q is not less than 3000 μm. By setting a gap region Q between the first color resist 310 and the second color resist 320, wherein a portion of the light-shielding portion 520 is located within the gap region Q, and the width e of the gap region Q is not less than 3000 μm, during the fabrication of the liquid crystal display panel 10, a portion of the material used to fabricate the light-shielding portion 520 can sink into the gap region Q, reducing the elevation of a portion of the light-shielding portion 520 near the first color resist 310, and reducing the step difference between the edge of the light-shielding portion 520 and the organic planarization layer 400 covering the first color resist 310. Subsequently, during the coating of PI liquid, the risk of PI liquid used to fabricate the alignment film flowing back and accumulating at the edge of the light-shielding portion 520 can be reduced, thereby more effectively improving the problem of uneven color brightness around the liquid crystal display panel 10. Preferably, the width e of the interval region Q is 3000um, 3100um, 3200um, 3300um, 3400um, 3500um, 3600um, 3700um, 3800um, 3900um, 4000um, 4100um, 4200um, 4300um, 4400um, 4500um, 4600um, 4700um, 4800um, 4900um, 5000um, 5100um, 5200um, 5300um, 5400um, 5500um, 5600um, 5700um, 5800um, 5900um, or 6000um.

[0036] In this embodiment, reference Figure 5 The liquid crystal display panel 10 further includes a first alignment layer 600 and a second alignment layer 700; the first alignment layer 600 is disposed on a surface of the organic planarization layer 400 away from the array substrate 100, and the first alignment layer 600 covers at least a portion of the first light-shielding sub-part 521, the second light-shielding sub-part 522 and a portion of the organic planarization layer 400 located on the first color resist 310; the second alignment layer 700 is disposed on a surface of the opposing substrate 200 close to the array substrate 100.

[0037] In this embodiment, reference Figure 4The light-shielding portion 520 includes a first light-shielding sub-portion 521, a portion of which fills the spacer region Q. The first light-shielding sub-portion 521 and a portion of the organic planarization layer 400 covering the first color resist 310 have a first step difference H1, which is not greater than 0.8 μm. In a top-view perspective of the liquid crystal display panel 10, the first light-shielding sub-portion 521 does not extend beyond the edge of the spacer region Q. Preferably, the first segment difference H1 is 0.60um, 0.61um, 0.62um, 0.63um, 0.64um, 0.65um, 0.66um, 0.67um, 0.68um, 0.69um, 0.70um, 0.71um, 0.72um, 0.73um, 0.74um, 0.75um, 0.76um, 0.77um, 0.78um, 0.79um, or 0.80um.

[0038] Understandably, when fabricating the first alignment layer 600, the first alignment layer 600 covers a portion of the light-shielding portion 520 and a portion of the organic planarization layer 400 located on the first color resist 310. Therefore, a portion of the light-shielding portion 520 is filled within the spacing region Q, and the width of the spacing region Q is not less than 3000 μm, such that the first step difference H1 between the first light-shielding sub-part 521 and the portion of the organic planarization layer 400 covering the first color resist 310 is not greater than 0.8 μm. This reduces the risk of PI solution used to fabricate the alignment film flowing back and accumulating at the edge of the light-shielding portion 520.

[0039] In this embodiment, reference Figure 4 The light-shielding portion 520 further includes a second light-shielding sub-portion 522, which is connected to the first light-shielding sub-portion 521. A second step difference H2 exists between the second light-shielding sub-portion 522 and the first light-shielding sub-portion 521, and the second step difference H2 is not greater than 0.5 μm. Specifically, when viewed from above the liquid crystal display panel 10, the second light-shielding sub-portion 522 overlaps with at least a portion of the second color resist 320. Preferably, the second step difference H2 is 0.41 mm, 0.42 mm, 0.43 mm, 0.44 mm, 0.45 mm, 0.46 mm, 0.47 mm, 0.48 mm, 0.49 mm, or 0.50 mm.

[0040] It is understandable that when a portion of the light-shielding portion 520 sinks into the interval region Q, a first light-shielding sub-portion 521 and a second light-shielding sub-portion 522 with a step difference are formed on the light-shielding portion 520. During the fabrication of the alignment film, the PI liquid is prone to accumulate at the step difference between the first light-shielding sub-portion 521 and the second light-shielding sub-portion 522. Therefore, by reducing the thickness of the second color resist 320 and reducing the thickness of a portion of the organic planarization layer 400 located on the first color resist 310, the second step difference H2 is made no greater than 0.5 μm, thereby reducing the risk of PI liquid used to fabricate the alignment film flowing back and accumulating at the edge of the light-shielding portion 520.

[0041] In this embodiment, reference Figure 4 In the direction from the array substrate 100 to the opposing substrate 200, a portion of the organic planarization layer 400 covering the first color resist 310 has a surface away from the array substrate 100 that is lower than a surface away from the array substrate 100 of the first light-shielding sub-part 521, and a surface away from the array substrate 100 of the first light-shielding sub-part 521 is lower than a surface away from the array substrate 100 of the second light-shielding sub-part 522.

[0042] In this embodiment, the first color resist 310 includes one of a red sub-color resist, a green sub-color resist, or a blue sub-color resist, and the second color resist 320 is a red color resist or a green color resist, and the second color resist 320 is a different color from the first color resist 310.

[0043] Understandably, some blue light can pass through the light-shielding portion 520 located in the bezel area NA, causing light leakage in the bezel area NA and resulting in a bluish tint to the displayed image. Therefore, by setting the second color resist 320 to a green or red color resist, the second color resist 320 can filter blue light, thereby improving the bluish tint problem in the bezel area NA.

[0044] It should be understood that, unless otherwise specified or there is a logical conflict, the terminology and / or descriptions between different embodiments are consistent and can be referenced by each other, and the technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0045] The specific embodiments of this application have been described in detail above. The embodiments disclosed above are merely preferred embodiments of this application. Those skilled in the art can make many modifications and improvements without departing from the concept of this application. All such modifications and improvements fall within the scope of protection defined by the claims of this application.

Claims

1. A liquid crystal display panel, characterized in that, The liquid crystal display panel includes a display area and a border area surrounding the display area. It also includes an array substrate and a counter substrate disposed opposite to the array substrate. The liquid crystal display panel further includes: A color resist layer is disposed on the side of the array substrate near the opposing substrate, and a portion of the color resist layer is located in the border area; An organic planarization layer, wherein the organic planarization layer covers the color resist layer; A light-shielding pad layer, the light-shielding pad layer including a support portion and a light-shielding portion, the support portion and the light-shielding portion being spaced apart, the support portion being located in the display area, the light-shielding portion being located in the border area, the support portion being connected to the opposing substrate and the color resist layer, and the light-shielding portion being disposed on a surface of the organic planarization layer away from the array substrate; Wherein, the sum of the thickness of the color resist layer located in a portion of the border area and the thickness of the organic planarization layer located in a portion of the border area is less than the sum of the thickness of the color resist layer located in a portion of the display area and the thickness of the organic planarization layer located in a portion of the display area.

2. The liquid crystal display panel according to claim 1, characterized in that, A portion of the organic planarization layer covers a portion of the color resist layer located in the display area, and a portion of the organic planarization layer covers a portion of the color resist layer located in the border area. The thickness of a portion of the organic planarization layer covering the surface of the color resist layer in the border area is less than the thickness of a portion of the organic planarization layer covering the surface of the color resist layer in the display area, and the absolute value of the difference between the thickness of a portion of the organic planarization layer covering the surface of the color resist layer in the border area and the thickness of a portion of the organic planarization layer covering the surface of the color resist layer in the display area is not less than 0.5 μm.

3. The liquid crystal display panel according to claim 1 or 2, characterized in that, The color resist layer includes a plurality of first color resists and a plurality of second color resists. The first color resists are located in the display area, and the second color resists are located in the border area. The thickness of the second color resist is less than the thickness of the first color resist that has the same color as the second color resist among the plurality of first color resists, and the difference between the thickness of the first color resist that has the same color as the second color resist and the thickness of the second color resist is 0.2um~0.5um. A portion of the organic planarization layer covers a portion of the first color resist and the second color resist.

4. The liquid crystal display panel according to claim 3, characterized in that, A gap region is formed between the first color resist and the second color resist, the width of the gap region being not less than 3000um, wherein a portion of the organic flat portion and a portion of the light-shielding portion fill the gap region.

5. The liquid crystal display panel according to claim 4, characterized in that, The light-shielding portion includes a first light-shielding sub-portion, a portion of which fills the interval region, and a first step difference exists between the first light-shielding sub-portion and a portion of the organic planarization layer covering the first color resist, the first step difference being no greater than 0.8 μm; In a top-view perspective of the liquid crystal display panel, the first light-shielding sub-part does not extend beyond the edge of the interval area.

6. The liquid crystal display panel according to claim 5, characterized in that, The light-shielding part further includes a second light-shielding sub-part, which is connected to the first light-shielding sub-part. There is a second step difference between the second light-shielding sub-part and the first light-shielding sub-part, and the second step difference is not greater than 0.5um. In a top-view perspective of the liquid crystal display panel, the second light-shielding sub-part overlaps with at least a portion of the second color resist.

7. The liquid crystal display panel according to claim 6, characterized in that, In the direction from the array substrate to the opposing substrate, a portion of the organic planarization layer covering the first color resist has a surface away from the array substrate that is lower than a surface away from the array substrate of the first light-shielding sub-part, and a surface away from the array substrate of the first light-shielding sub-part is lower than a surface away from the array substrate of the second light-shielding sub-part.

8. The liquid crystal display panel according to claim 6, characterized in that, The liquid crystal display panel also includes: A first alignment layer is disposed on a surface of the organic planarization layer away from the array substrate; A second alignment layer is disposed on a surface of the opposing substrate near the array substrate; The first alignment layer covers at least a portion of the first light-blocking sub-part, the second light-blocking sub-part, and a portion of the organic planarization layer located on the first color resist.

9. The liquid crystal display panel according to claim 4, characterized in that, The plurality of first color resistors include a red sub-color resistor, a green sub-color resistor, and a blue sub-color resistor, and the second color resistor is either a red color resistor or a green color resistor, and the second color resistor is a different color from the adjacent first color resistor.

10. A display device, characterized in that, The invention includes a liquid crystal display panel as described in any one of claims 1-9 and a backlight module, wherein the liquid crystal display panel is disposed on the light-emitting side of the backlight module.

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