Display device

Abstract

The invention discloses a display device which comprises a backlight module, a middle frame and a liquid crystal display panel, 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, an opposite substrate, a shading part, a color resistance layer, a black supporting layer and a first polaroid; the opposed substrate and the array substrate are oppositely arranged; the shading piece is arranged between the middle frame and the array substrate; the color resistance layer is arranged on the surface, close to the opposite substrate, of the array substrate and comprises a first color resistance and a second color resistance, the first color resistance is located in the display area, and the second color resistance is located in the frame area; the black supporting layer is arranged on the surface, close to the opposite substrate, of the array substrate, and the black supporting layer covers the second color resistor; wherein under the view angle of the overlooking display device, one part of the second color resistor is overlapped with one part of the shading piece and one part of the first polaroid. The display device has the advantage that the problem of light leakage of the display device in a conventional scheme can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display device. BACKGROUND

[0002] In order to reduce the mask and simplify the process flow, the display panel of the conventional display device adopts BPS (Black Photo Spacer) technology to combine the light shielding layer (BM) and the support column (PS) into one mask and is manufactured on the array substrate. The BPS technology uses one photoetching process to manufacture the black support layer to replace the original BM (Black Matrix) and PS (Photo Spacer) functions, wherein the BM is to improve the light leakage problem of the frame area, and the PS is to support the spacing area between the array substrate and the opposite substrate to fill the liquid crystal. However, in the conventional display device, part of the light of the backlight module of the display device is easy to pass through the black support layer and irradiate to the outside from the frame area, causing the display device to have the problem of light leakage. SUMMARY

[0003] Embodiments of the present application provide a display device to improve the light leakage problem of the conventional display device.

[0004] Embodiments of the present application provide a display device, which comprises a backlight module, a middle frame arranged at the edge of the backlight module, and a liquid crystal display panel arranged at the light emitting side of the backlight module, and a part of the liquid crystal display panel is embedded in the middle frame, 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, which is connected with the middle frame; an opposite substrate, which is arranged opposite to the array substrate; a light shielding piece, which is arranged between the middle frame and the array substrate; a color resistance layer, which is arranged on a surface of the array substrate close to the opposite substrate, the color resistance layer comprises a first color resistance and a second color resistance, the first color resistance is located in the display area, and the second color resistance is located in the frame area; a black support layer, which is arranged on a surface of the array substrate close to the opposite substrate, and the black support layer covers the second color resistance; a first polaroid, which is arranged on a surface of the array substrate away from the opposite substrate; wherein, in the visual angle of viewing the display device from above, a part of the second color resistance overlaps with a part of the light shielding piece and a part of the first polaroid.

[0005] Further, a width of a portion of the second color resist overlapping with the light shielding member is not less than 0.5 mm, and a width of a portion of the second color resist overlapping with the first polarizer is not less than 0.5 mm.

[0006] Further, the liquid crystal display panel further comprises a third light shielding layer, the third light shielding layer is arranged on a surface of the counter substrate away from the array substrate; Wherein, in the visual angle of the display device, the third light shielding layer overlaps with a portion of the light shielding member, and a portion of the third light shielding layer overlaps with a portion of the second color resist.

[0007] Further, the liquid crystal display panel further comprises a second polarizer, wherein the third light shielding layer is arranged on a surface of the counter substrate away from the array substrate, the second polarizer is arranged on a surface of the counter substrate away from the array substrate, and the second polarizer covers at least a portion of the third light shielding layer.

[0008] Further, the liquid crystal display panel further comprises a second polarizer, the second polarizer is arranged on a surface of the counter substrate away from the array substrate, and the third light shielding layer is arranged on a surface of the second polarizer away from the array substrate.

[0009] Further, the third light shielding layer is black ink, and a thickness of the black ink is not greater than 20 um.

[0010] Further, a thickness of the second color resist is greater than a thickness of the first color resist.

[0011] Further, there is a spacing region between the second color resist and the first color resist, a portion of the black support layer is filled in the spacing region, a top surface of a portion of the black support layer in the spacing region is lower than a top surface of a portion of the black support layer on the second color resist, and a top surface of a portion of the black support layer in the spacing region is higher than a top surface of the second color resist.

[0012] Further, there is a spacing between the second color resist and the first color resist, and the spacing is not less than 3000 um.

[0013] Further, the second color resist comprises a first color resist sub-layer, a second color resist sub-layer and a third color resist sub-layer arranged in sequence, and colors of the first color resist sub-layer, the second color resist sub-layer and the third color resist sub-layer are different; wherein, the black support layer covers a sidewall of the first color resist sub-layer, a sidewall of the second color resist sub-layer, a sidewall of the third color resist sub-layer and a top surface of the third color resist sub-layer.

[0014] The beneficial effects of the present application are as follows: The present application provides a display device, by setting the liquid crystal display panel comprising a light shielding member, a color resistance layer, a black support layer and a first polarizing plate, and setting the light shielding member between the middle frame and the array substrate, the color resistance layer is set on a surface of the array substrate close to the opposite substrate, the color resistance layer comprises a first color resistance and a second color resistance, the first color resistance is located in the display area, the second color resistance is located in the frame area, the black support layer is set on a surface of the array substrate close to the opposite substrate, and the black support layer covers the second color resistance, the first polarizing plate is set on a surface of the array substrate away from the opposite substrate, under the visual angle of the display device, a part of the second color resistance overlaps with a part of the light shielding member and a part of the first polarizing plate; when the light of the backlight module passes through the second color resistance, the second color resistance can play a role of blocking a part of the light, reducing the light passing through the black support layer and irradiating to the outside from the frame area, thereby improving the light leakage problem of the display device. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a top view of the display device of the present application; Figure 2 is a schematic diagram of the first structure of the display device of the present application; Figure 3 is a schematic diagram of the second structure of the display device of the present application; Figure 4 is a schematic diagram of the third structure of the display device of the present application; Figure 5 is a schematic diagram of the structure of the second color resistance of the color resistance layer of the display device in the present application.

[0016] REFERENCE NUMERALS: 10 - display device; 100 - backlight module; 200 - liquid crystal display panel, 210 - array substrate, 220 - opposite substrate, 230 - light shielding member, 240 - color resistance layer, 241 - first color resistance, 2411 - first color resistance sublayer, 2412 - second color resistance sublayer, 2413 - third color resistance sublayer, 242 - second color resistance, 250 - black support layer, 260 - first polarizing plate, 270 - third light shielding layer, 280 - second polarizing plate, 290 - sealing member; 300 - middle frame.

[0017] AA - display area; NA - frame area; Q - spacing area. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. The technical solutions described below are only used to explain and describe the ideas of the present application, and should not be regarded as limiting the protection scope of the present application.

[0019] In addition, the terms "first", "second", and similar words do not represent any order, quantity or importance, but are only used to distinguish different technical features. The term "multiple" and similar words represent two or more, unless otherwise explicitly limited.

[0020] The embodiments of the present application provide a display device 10, referring to Figure 1 、 Figure 2 The display device includes a backlight module 100, a middle frame 300 arranged at the edge of the backlight module 100, and a liquid crystal display panel 200 arranged at the light-emitting side of the backlight module 100, and a part of the liquid crystal display panel 200 is embedded in the middle frame 300. The liquid crystal display panel 200 includes a display area AA and a frame area NA arranged around the display area AA, and further includes an array substrate 210, an opposing substrate 220, a light shielding member 230, a color resistance layer 240, a black support layer 250, and a first polarizing plate 260.

[0021] Specifically, the array substrate 210 is connected with the middle frame 300; the opposing substrate 220 is arranged opposite to the array substrate 210; the light shielding member 230 is arranged between the middle frame 300 and the array substrate 210; the color resistance layer 240 is arranged on a surface of the array substrate 210 close to the opposing substrate 220, and the color resistance layer 240 includes a first color resistance 241 and a second color resistance 242, the first color resistance 241 is located in the display area AA, and the second color resistance 242 is located in the frame area NA; the black support layer 250 is arranged on a surface of the array substrate 210 close to the opposing substrate 220, and the black support layer 250 covers the second color resistance 242; the first polarizing plate 260 is arranged on a surface of the array substrate 210 away from the opposing substrate 220; wherein, in the visual angle of viewing the display device 10 from above, a part of the second color resistance 242 overlaps with a part of the light shielding member 230 and a part of the first polarizing plate 260.

[0022] In order to reduce the mask and simplify the process flow, the display panel of the display device 10 of the conventional scheme adopts the BPS (Black Photo Spacer) technology to combine the light shielding layer (BM) and the support column (PS) into one mask and is manufactured on the array substrate. The BPS technology uses one photoetching process to manufacture the black support layer to replace the original BM (Black Matrix) and PS (Photo Spacer); the black support layer replaces the functions of the original BM and PS, wherein the BM is used to solve the light leakage problem of the frame area, and the PS is used to support the spacing area between the array substrate and the opposite substrate to fill the liquid crystal. However, in the display device of the conventional scheme, part of the light of the backlight module of the display device easily passes through the black support layer and is irradiated to the outside from the frame area, which causes the display device to have the light leakage problem. Therefore, the technical scheme of the present application provides a display device 10, which comprises a liquid crystal display panel 200, an optical shielding piece 230, a color resistance layer 240, a black support layer 250, and a first polaroid 260. The optical shielding piece 230 is arranged between the middle frame 300 and the array substrate 210. The color resistance layer 240 is arranged on a surface of the array substrate 210 close to the opposite substrate 220. The color resistance layer 240 comprises a first color resistance 241 and a second color resistance 242. The first color resistance 241 is located in the display area AA, and the second color resistance 242 is located in the frame area NA. The black support layer 250 is arranged on a surface of the array substrate 210 close to the opposite substrate 220, and covers the second color resistance 242. The first polaroid 260 is arranged on a surface of the array substrate 210 away from the opposite substrate 220. In the visual angle of the display device 10, a part of the second color resistance 242 overlaps with a part of the optical shielding piece 230 and a part of the first polaroid 260. When the light of the backlight module 100 passes through the second color resistance 242, the second color resistance 242 can block part of the light, reduce the light passing through the black support layer 250 and irradiated to the outside from the frame area NA, and thus improve the light leakage problem of the display device 10.

[0023] In the embodiment, the material of the black support layer is black photoresist.

[0024] It can be understood that, in the embodiment, the black support layer located in a part of the frame area is used for light shielding, and the black support layer located in a part of the display area is used for supporting the spacing area between the array substrate 210 and the opposite substrate 220.

[0025] In the embodiment, referring to Figure 2The width a of the second color resist 242 overlapping with the light shielding member 230 is not less than 0.5 mm, and the width b of the second color resist 242 overlapping with the first polarizer 260 is not less than 0.5 mm.

[0026] It can be understood that the second color resist 242 is located on the side of the array substrate 210 close to the array substrate 210. Since the array substrate 210 has a certain thickness, when the two opposite edges of the second color resist 242 do not exceed the edge of the light shielding member 230 and the edge of the polarizer, part of the light can still be irradiated to the outside from the frame at a large viewing angle without passing through the second color resist 242, which limits the improvement of the light leakage problem of the display device 10. Therefore, in the embodiment, the width a of the second color resist 242 overlapping with the light shielding member 230 is not less than 0.5 mm, and the width b of the second color resist 242 overlapping with the first polarizer 260 is not less than 0.5 mm, so that the second color resist 242 can cover the first light shielding member 230 and the polarizer by a sufficient distance, reducing the amount of light irradiated to the outside from the junction of the second color resist 242 and the light shielding member 230 and the junction of the second color resist 242 and the first polarizer 260, thereby effectively improving the light leakage problem of the frame area NA of the display device 10.

[0027] In the embodiment, referring to Figure 3 The liquid crystal display panel 200 further comprises a third light shielding layer 270, which is arranged on the side of the opposite substrate 220 away from the array substrate 210. In the viewing angle of the display device 10, the third light shielding layer 270 overlaps with a part of the light shielding member 230, and a part of the third light shielding layer 270 overlaps with a part of the second color resist 242. By arranging the liquid crystal display panel 200 further comprising a third light shielding layer 270, which is arranged on the side of the opposite substrate 220 away from the array substrate 210. In the viewing angle of the display device 10, the third light shielding layer 270 overlaps with a part of the light shielding member 230, and a part of the third light shielding layer 270 overlaps with a part of the second color resist 242, so that the third light shielding layer 270 can play a role of light shielding in the frame area NA, and cooperate with the light shielding member 230 and the second color resist 242 to form a multi-layer light blocking structure, thereby blocking the light irradiated to the outside from the frame area NA, and avoiding the light leakage in the frame area NA of the display device 10.

[0028] In the embodiment, referring to Figure 3The display panel comprises a sealant 290, which is arranged between the array substrate 210 and the opposite substrate 220 and located in the frame area NA; wherein, in the visual angle of viewing the display device 10 from above, a part of the third light shielding layer 270 overlaps the sealant 290.

[0029] In the embodiment, referring to Figure 3 The liquid crystal display panel 200 further comprises a second polarizer 280, wherein the third light shielding layer 270 is arranged on a surface of the opposite substrate 220 away from the array substrate 210, and the second polarizer 280 is arranged on a surface of the opposite substrate 220 away from the array substrate 210, and the second polarizer 280 covers at least a part of the third light shielding layer 270.

[0030] In the embodiment, the liquid crystal display panel 200 further comprises a second polarizer 280, which is arranged on a surface of the opposite substrate 220 away from the array substrate 210, wherein the third light shielding layer 270 is arranged on a surface of the second polarizer 280 away from the array substrate 210.

[0031] In the embodiment, the third light shielding layer 270 is black ink, and the thickness of the black ink is not greater than 20 um. By arranging the third light shielding layer 270 as black ink and the thickness of the black ink being not greater than 20 um, the black ink has good light absorption effect, so that the first shielding layer 410 and the second shielding layer 420 can effectively absorb and shield light, which can reduce the transmission of light on one hand and the reflection of light on the other hand, so as to ensure the light shielding effect of the third light shielding layer. Preferably, the thickness of the third light shielding layer 270 is 10 um, 11 um, 12 um, 13 um, 14 um, 15 um, 16 um, 17 um, 18 um, 19 um or 20 um.

[0032] In the embodiment, the liquid crystal display panel 200 further comprises a first alignment layer and a second alignment layer; the first alignment layer is arranged on a surface of the black support layer 250 away from the array substrate 210, and a part of the black support layer 250 exceeds the edge of the black support layer 250, and the second alignment layer is arranged on a surface of the opposite substrate 220 close to the array substrate 210; wherein, in the visual angle of viewing the display device 10 from above, a part of the first alignment layer overlaps the first color resistance 241.

[0033] In the embodiment, referring to Figure 3The thickness c of the second color resist 242 is greater than the thickness d of the first color resist 241. By setting the thickness c of the second color resist 242 to be greater than the thickness d of the first color resist 241, the blocking effect of the second color resist 242 on light can be enhanced, and the amount of light that irradiates to the outside can be reduced.

[0034] In the embodiment, the first color resist 241 and the second color resist 242 are arranged in the non-display area NA of the liquid crystal display panel 200. Figure 4 The second color resist 242 and the first color resist 241 have a spacing area Q therebetween, and a portion of the black support layer 250 is filled in the spacing area Q. The top surface of a portion of the black support layer 250 in the spacing area Q is lower than the top surface of a portion of the black support layer 250 on the second color resist 242, and the top surface of a portion of the black support layer 250 in the spacing area Q is higher than the top surface of the second color resist 242.

[0035] It can be understood that, because the thickness of the second color resist 242 is greater than the thickness of the first color resist 241, the thickness of the second color resist 242 in the non-display area NA is increased, which causes the step difference between the edge of the black support layer 250 in the non-display area NA and the first color resist 241 to be large. When the alignment film on the side of the array substrate 210 is manufactured, the PI liquid used to manufacture the alignment film is prone to backflow and accumulate at the edge of the black support layer 250, which causes the problem of uneven color brightness at the periphery of the liquid crystal display panel 200. Therefore, by setting the second color resist 242 and the first color resist 241 to have a spacing area Q therebetween, and a portion of the black support layer 250 is filled in the spacing area Q, the top surface of a portion of the black support layer 250 in the spacing area Q is lower than the top surface of a portion of the black support layer 250 on the second color resist 242, and the top surface of a portion of the black support layer 250 in the spacing area Q is higher than the top surface of the second color resist 242. On the one hand, the step difference H between the edge of the black support layer 250 and the first color resist 241 can be reduced, and the accumulation of the PI liquid at the edge of the black support layer 250 can be reduced, thereby improving the problem of uneven color brightness at the periphery of the liquid crystal display panel 200. On the other hand, the problem of light leakage of the display device 10 can be improved, because the edge of the second color resist 242 is not blocked by the black support layer.

[0036] In the embodiment, the second color resist 242 has a spacing e with the first color resist 241, and the spacing e is not less than 3000 um. Preferably, the spacing e is 3000 um, 3100 um, 3200 um, 3300 um, 3400 um, 3500 um, 3600 um, 3700 um, 3800 um, 3900 um, 4000 um, 4100 um, 4200 um, 4300 um, 4400 um, 4500 um, 4600 um, 4700 um, 4800 um, 4900 um, 5000 um, 5100 um, 5200 um, 5300 um, 5400 um, 5500 um, 5600 um, 5700 um, 5800 um, 5900 um, or 6000 um.

[0037] In the embodiment, referring to Figure 3 、 Figure 5 , the second color resist 242 comprises a first color resist sub-layer 2411, a second color resist sub-layer 2412, and a third color resist sub-layer 2413 arranged in layers, and the color of the first color resist sub-layer 2411, the color of the second color resist sub-layer 2412, and the color of the third color resist sub-layer 2413 are different; wherein the black support layer covers the sidewall of the first color resist sub-layer, the sidewall of the second color resist sub-layer, the sidewall of the third color resist sub-layer, and the top surface of the third color resist sub-layer. By arranging the second color resist 242 to comprise a first color resist sub-layer 2411, a second color resist sub-layer 2412, and a third color resist sub-layer 2413 arranged in layers, and the color of the first color resist sub-layer 2411, the color of the second color resist sub-layer 2412, and the color of the third color resist sub-layer 2413 are different; wherein the black support layer covers the sidewall of the first color resist sub-layer, the sidewall of the second color resist sub-layer, the sidewall of the third color resist sub-layer, and the top surface of the third color resist sub-layer; the second color resist 242 can block multiple different colors of light, improving the light blocking effect of the second color resist 242, thereby improving the light leakage problem of the frame area NA of the display device 10.

[0038] In the embodiment, the first color resist sub-layer 2411 is one of a red color resist sub-layer, a green color resist sub-layer, and a blue color resist sub-layer, the second color resist sub-layer 2412 is one of a red color resist sub-layer, a green color resist sub-layer, and a blue color resist sub-layer, the third color resist sub-layer 2413 is one of a red color resist sub-layer, a green color resist sub-layer, and a blue color resist sub-layer, and the color of the first color resist sub-layer 2411, the color of the second color resist sub-layer 2412, and the color of the third color resist sub-layer 2413 are different.

[0039] In the embodiment, the second color resist 242 includes a first color resist sub-layer 2411 and a second color resist sub-layer 2412, the first color resist sub-layer 2411 and the second color resist sub-layer 2412 are stacked, the color of the first color resist sub-layer 2411 and the second color resist sub-layer 2412 is one of a red color resist sub-layer, a green color resist sub-layer and a blue color resist sub-layer, the color of the second color resist sub-layer 2412 is one of a red color resist sub-layer, a green color resist sub-layer and a blue color resist sub-layer, and the color of the first color resist sub-layer 2411 is different from the color of the second color resist sub-layer 2412.

[0040] The specific implementation of the present application is described in detail above. The above-described embodiments disclosed by the present application are only preferred embodiments of the present application. For those skilled in the art, many modifications and improvements can be made without departing from the concept of the present application. These modifications and improvements are all within the protection scope of the claims of the present application.

Claims

1. A display device, characterized in that, The system includes a backlight module, a mid-frame disposed at the edge of the backlight module, and a liquid crystal display panel disposed on the light-emitting side of the backlight module, wherein a portion of the liquid crystal display panel is embedded within the mid-frame. The liquid crystal display panel includes a display area and a border area surrounding the display area. The liquid crystal display panel further includes: An array substrate, wherein the array substrate is connected to the middle frame; Opposing substrate, wherein the opposing substrate is disposed opposite to the array substrate; A light-shielding member is disposed between the middle frame and the array substrate; A color resist layer is disposed on a surface of the array substrate near the opposing substrate. The color resist layer includes a first color resist and a second color resist, wherein the first color resist is located in the display area and the second color resist is located in the border area. A black support layer is disposed on a surface of the array substrate near the opposing substrate, and the black support layer covers the second color resist. A first polarizer is disposed on a surface of the array substrate away from the opposing substrate; In the view of the display device from above, a portion of the second color resist overlaps with a portion of the light-shielding member and a portion of the first polarizer.

2. The display device according to claim 1, characterized in that, The width of the portion of the second color resist that overlaps with the light-shielding element is not less than 0.5 mm, and the width of the portion of the second color resist that overlaps with the first polarizer is not less than 0.5 mm.

3. The display device according to claim 1, characterized in that, The liquid crystal display panel further includes a third light-shielding layer, which is disposed on the side of the opposing substrate away from the array substrate; In the view of the display device from above, the third light-shielding layer overlaps with a portion of the light-shielding member, and a portion of the third light-shielding layer overlaps with a portion of the second color resist.

4. The display device according to claim 3, characterized in that, The liquid crystal display panel further includes a second polarizer, wherein the third light-shielding layer is disposed on a surface of the opposing substrate away from the array substrate, the second polarizer is disposed on a surface of the opposing substrate away from the array substrate, and the second polarizer covers at least a portion of the third light-shielding layer.

5. The display device according to claim 4, characterized in that, The third light-shielding layer is black ink, and the thickness of the black ink is no more than 20 μm.

6. The display device according to claim 3, characterized in that, The liquid crystal display panel further includes a second polarizer, which is disposed on a surface of the opposing substrate away from the array substrate, wherein the third light-shielding layer is disposed on a surface of the second polarizer away from the array substrate.

7. The display device according to claim 1, characterized in that, The thickness of the second color resist is greater than the thickness of the first color resist.

8. The display device according to claim 7, characterized in that, There is a gap between the second color resist and the first color resist. A portion of the black support layer is filled in the gap. The top surface of the portion of the black support layer located in the gap is lower than the top surface of the portion of the black support layer located on the second color resist, and the top surface of the portion of the black support layer located in the gap is higher than the top surface of the second color resist.

9. The display device according to claim 1, characterized in that, The second color resist and the first color resist have a gap, the gap being not less than 3000um.

10. The display device according to claim 1, characterized in that, The second color resist comprises a first color resist layer, a second color resist layer, and a third color resist layer stacked sequentially, wherein the colors of the first color resist layer, the second color resist layer, and the third color resist layer are different; wherein the black support layer covers the sidewalls of the first color resist layer, the sidewalls of the second color resist layer, the sidewalls of the third color resist layer, and the top surface of the third color resist layer.

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