Display screen structure capable of changing display unevenness

Abstract

The utility model discloses a display screen structure capable of changing uneven display, which comprises a display screen, the display screen comprises an upper glass substrate, a color filter, a liquid crystal layer, a thin film transistor and a lower glass substrate which are sequentially arranged, the display screen comprises a display area and a non-display-screen area, the color filter comprises a black matrix layer and an RGB color resistance layer, and the liquid crystal layer is arranged on the lower glass substrate. The black matrix layer and the RGB color resistance layer are arranged relative to the position of the display area, a retaining wall structure is arranged at the position, relative to the non-display screen area, of the color filter, and the retaining wall structure is used for reducing the flowability of the RGB color resistance layer located within the range of the display area. According to the utility model, the retaining wall structure is arranged in the range of the non-display screen area so as to reduce the flowability of printing ink after being subjected to centrifugal force in the range of the display area, so that the problem of stripes can be effectively solved, and the purpose of improving non-uniform display is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to display screen technical field especially relates to a display screen structure that changes display unevenness. BACKGROUND

[0002] With the development of the times and the progress of technology, people not only have functional requirements on electronic products, but also increasingly picky on the display effect of products. If the display screen shows uneven display, it is unacceptable to the terminal consumer, so how to improve the picture uniformity of the display screen is particularly important.

[0003] The display screen is provided with a color filter, and in the color filter manufacturing process, spin coating mode is needed to manufacture ink. When the color filter ink process adopts spin coating mode, the glass substrate needs to be rotated due to the limitation of the equipment mode. During the rotation of the ink, it is affected by the centrifugal force and the shape of the display screen, forming a regular flow, and then producing appearance stripes. The stripe phenomenon is strongly related to the three-layer ink manufacturing sequence. The later the ink process, the more serious the stripe. The stripe can be seen in the display screen lighting and non-lighting state, which greatly reduces customer satisfaction and display screen yield. SUMMARY

[0004] The utility model aims at overcoming the deficiency in prior art, and provides a display screen structure that changes display unevenness.

[0005] The utility model aims at overcoming the deficiency in prior art, and provides a display screen structure that changes display unevenness.

[0006] A display screen structure that changes display unevenness, comprising: a display screen, the display screen comprising an upper glass substrate, a color filter, a liquid crystal layer, a thin film transistor and a lower glass substrate arranged in sequence, the display screen comprising a display area and a non-display screen area, the color filter comprising a black matrix layer and an RGB color resistance layer, the positions of the black matrix layer and the RGB color resistance layer relative to the display area are set, the color filter is provided with a retaining wall structure relative to the position of the non-display screen area, and the retaining wall structure is used to reduce the fluidity of the RGB color resistance layer within the display area.

[0007] In one embodiment, the black matrix layer is a BM ink layer, and the positions of the BM ink layer relative to the display area are arranged at intervals.

[0008] In one embodiment, the RGB color resistance layer comprises three layers of ink, and the three layers of ink are R ink, G ink and B ink respectively.

[0009] In one embodiment, the RGB color resistance layer has six different sequential processes.

[0010] In one embodiment, the barrier wall structure comprises a BM layer and one layer of ink, the BM layer and the one layer of ink are arranged relative to the position of the non-display area, and the one layer of ink is the first layer of ink in the RGB color resistance layer process.

[0011] In one embodiment, the thickness of the barrier wall structure is greater than the thickness of the black matrix layer and the RGB color resistance layer in the display area.

[0012] In one embodiment, the barrier wall structure is evenly distributed in the range of the non-display area.

[0013] In one embodiment, the shape of the barrier wall structure can be circular, square, strip or arc.

[0014] In one embodiment, the barrier wall structure comprises a BM layer and two layers of ink, and the two layers of ink are the superposition of the first layer of ink and the second layer of ink in the RGB color resistance layer process.

[0015] In one embodiment, the barrier wall structure comprises a BM layer and three layers of ink, and the three layers of ink are the superposition of the first layer of ink, the second layer of ink and the third layer of ink in the RGB color resistance layer process.

[0016] Compared with the prior art, the display screen structure for changing display unevenness has at least the following advantages:

[0017] The display screen structure for changing display unevenness of the present application sets a barrier wall structure in the range of the color filter relative to the non-display area, the thickness of the barrier wall structure is greater than the thickness of the black matrix layer and the RGB color resistance layer in the display area, so as to reduce the flowability of the ink in the display area after being subjected to centrifugal force, effectively solve the problem of stripes, and improve the display unevenness. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments.

[0019] Figure 1 The stacking structure schematic diagram of the display screen structure for changing display unevenness provided by the present application;

[0020] Figure 2 The stacking structure schematic diagram of the color filter in the display screen structure for changing display unevenness provided by the present application;

[0021] Figure 3 The structure schematic diagram of the color filter large plate glass in the display screen structure for changing display unevenness provided by the present application;

[0022] Figure 4 The structural schematic diagram of the display screen structure for changing display unevenness in embodiment 2 is provided in the utility model.

[0023] Figure 5 The structural schematic diagram of the display screen structure for changing display unevenness in embodiment 3 is provided in the utility model.

[0024] BRIEF DESCRIPTION OF DRAWINGS: 10, display screen; 11, display area; 12, non-display screen area; 20, upper glass substrate; 30, color filter; 31, black matrix layer; 32, RGB color resistance layer; 321, R ink; 322, G ink; 323, B ink; 40, liquid crystal layer; 50, thin film transistor; 60, lower glass substrate; 70, barrier wall structure; 71, BM layer; 72, one layer of ink layer; 73, two layers of ink layer; 74, three layers of ink layer. DETAILED DESCRIPTION

[0025] In order to facilitate understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings.

[0026] Embodiment 1:

[0027] A display screen structure for changing display unevenness, referring to Figure 1 , comprising display screen 10, the display screen 10 includes upper glass substrate 20, color filter 30, liquid crystal layer 40, thin film transistor 50 and lower glass substrate 60 that set gradually. Among them, the display screen 10 includes display area 11 and non-display screen area 12. It needs to be explained that the shape of display screen 10 is square, circular or other shapes, wherein the display screen 10 of square appears the condition of stripe is lighter, and the display screen 10 of circular and other shapes is more likely to appear the condition of stripe.

[0028] Referring to Figure 2 And Figure 3 , color filter 30 includes black matrix layer 31 and RGB color resistance layer 32, and the position of black matrix layer 31 and RGB color resistance layer 32 is set relative to display area 11, and black matrix layer 31 and RGB color resistance layer 32 are filled to the range of color filter 30 relative to display area 11. It needs to be explained that the manufacturing process flow of color filter 30 is usually black matrix layer 31, RGB color resistance layer 32, planarization layer and support column, since the process that mainly influences the display screen 10 to produce display unevenness is the manufacturing of black matrix layer 31 and RGB color resistance layer 32, therefore this embodiment is explained to black matrix layer 31 and RGB color resistance layer 32. In addition, color filter 30 is a single grain color filter formed by cutting color filter large plate glass, and a plurality of single grain color filters on color filter large plate glass are manufactured and cut during the manufacturing process.

[0029] Further, referring to Figure 2 , the black matrix layer 31 is a BM ink layer, and the BM ink layer is arranged in a spaced manner relative to the position of the display area 11. It should be noted that the BM ink layer is a black light shielding layer.

[0030] Further, referring to Figure 2 , the RGB color resistance layer 32 includes three layers of ink, and the three layers of ink are R ink 321, G ink 322 and B ink 323 respectively, and R ink 321, G ink 322 and B ink 323 represent red, green and blue respectively. It should be noted that the filling order of the RGB color resistance layer 32 can be adjusted according to actual conditions, so the RGB color resistance layer 32 has six different order processes, and the filling order of the six different order processes from early to late is R-G-B, R-B-G, G-R-B, G-B-R, B-R-G and B-G-R.

[0031] In reference to Figure 2 , when the color filter 30 is manufactured, the black matrix layer 31 and the RGB color resistance layer 32 need to adopt a spin coating mode. During the spin coating process of the ink, it is affected by the centrifugal force and the shape of the display screen 10 at the same time, and forms a regular flow, and then generates an appearance stripe. The thickness of the ink at the stripe position is thicker than that of the normal area, which can be seen in both non-lighting and lighting states. The stripe phenomenon is strongly related to the manufacturing order of the three layers of ink. The later the ink process is, the more serious the stripe is. Taking the R-G-B order as an example, the R ink 321 is invisible, the G ink 322 is visible and the B ink 323 is visible. Therefore, the color filter 30 is provided with a barrier structure 70 relative to the position of the non-display area 12, and the barrier structure 70 can reduce the flowability of the RGB color resistance layer 32 within the display area 11, thereby avoiding the generation of stripes and achieving the purpose of improving display unevenness.

[0032] Further, referring to Figure 2The barrier structure 70 includes a BM layer 71 and an ink layer 72, and the BM layer 71 and the ink layer 72 are arranged relative to the position of the non-display area 12 and filled in the range of the non-display area 12. Specifically, taking the R-G-B sequence as an example, if the barrier structure 70 is not arranged in the non-display area 12, and the BM ink layer and the R ink 321 in the display area 11 are completed, the R ink 321 is prone to flow to the non-display area 12 under the action of centrifugal force during the G ink 322 spin coating process. In the embodiment, the barrier structure 70 is arranged in the non-display area 12, and the barrier structure 70 includes the BM layer 71 and the ink layer 72. Taking the R-G-B sequence as an example, the ink layer 72 is the first ink in the process of the RGB color resist layer 32, that is, the R ink 321, and the BM layer 71 and the R ink 321 are filled in the range of the non-display area 12 to form the barrier structure 70. Taking the R-G-B sequence as an example, after the BM ink layer and the R ink 321 in the display area 11 are completed, the BM layer 71 and the R ink 321 in the non-display area 12 form the barrier structure 70, so as to reduce the flowability of the G ink 322 and the B ink 323 filled in the display area 11 subsequently, and achieve the purpose of improving display unevenness. It should be noted that in other RGB color resist layer 32 process sequences, the ink layer 72 is the first ink in the process sequence.

[0033] Further, referring to Figure 2 The thickness of the barrier structure 70 is greater than the thickness of the black matrix layer 31 and the RGB color resist layer 32 in the display area 11, so that the non-display area 12 forms the barrier structure 70, the flowability of the RGB color resist layer 32 under the action of centrifugal force can be reduced, the stripe problem can be effectively solved, and the purpose of improving display unevenness can be achieved.

[0034] Further, referring to Figure 2 The barrier structure 70 is fully distributed in the range of the non-display area 12, so as to reduce the flowability of the ink in the display area 11 in all directions.

[0035] Further, referring to Figure 2 The shape of the barrier structure 70 can be circular, square, strip-shaped or arc-shaped.

[0036] Embodiment 2:

[0037] The difference between the embodiment and the embodiment 1 is that the barrier structure 70 is different.

[0038] Referring to Figure 3The barrier wall structure 70 comprises the BM layer 71 and two ink layers 73, wherein, taking R-G-B as an example, the two ink layers 73 are superimposed by the R ink 321 and the G ink 322, the BM layer 71, the R ink 321 and the G ink 322 are filled into the non-display area 12 to form the barrier wall structure 70, and the thickness of the barrier wall structure 70 is greater than the thickness of the black matrix layer 31 and the RGB color resistance layer 32 in the display area 11. It should be noted that, in other process sequences of the RGB color resistance layer 32, the two ink layers 73 are superimposed by the first ink layer and the second ink layer in the process sequence.

[0039] Embodiment 3:

[0040] The difference between the embodiment and the embodiment 1 is that the barrier wall structure 70 is different.

[0041] Referring to Figure 4 The barrier wall structure 70 comprises the BM layer 71 and three ink layers 74, wherein, taking R-G-B as an example, the three ink layers 74 are superimposed by the R ink 321, the G ink 322 and the B ink 323, and the BM layer 71, the R ink 321, the G ink 322 and the B ink 323 are sequentially filled into the non-display area 12 to form the barrier wall structure 70. It should be noted that, in other process sequences of the RGB color resistance layer 32, the three ink layers 74 are superimposed by the first ink layer, the second ink layer and the third ink layer in the process sequence.

[0042] The utility model discloses a barrier wall structure 70 is arranged in the range of the color filter 30 relative to the non-display area 12, the thickness of the barrier wall structure 70 is greater than the thickness of the black matrix layer 31 and the RGB color resistance layer 32 in the display area 11 range, to reduce the flowability of ink in the display area 11 range after receiving centrifugal force, can effectively solve the stripe problem, reach the purpose of improving display unevenness.

[0043] The above-mentioned embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it can not be understood as the limitation of the utility model patent range. It should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the utility model concept, a plurality of deformation and improvement can be made, and these all belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be according to the appended claims.

Claims

1. A display panel structure for changing display unevenness, characterized by comprising: The application relates to a display screen (10) comprising an upper glass substrate (20), a color filter (30), a liquid crystal layer (40), a thin film transistor (50) and a lower glass substrate (60) arranged in sequence, wherein the display screen (10) comprises a display area (11) and a non-display area (12), the color filter (30) comprises a black matrix layer (31) and an RGB color resist layer (32), the black matrix layer (31) and the RGB color resist layer (32) are arranged at positions relative to the display area (11), and the color filter (30) is provided with a dam structure (70) at a position relative to the non-display area (12), the dam structure (70) is used for reducing the fluidity of the RGB color resist layer (32) within the display area (11). The black matrix layer (31) is a BM ink layer, and the BM ink layer is arranged at intervals relative to the position of the display area (11).

2. The display panel structure according to claim 1, wherein The RGB color resist layer (32) comprises three layers of ink, and the three layers of ink are R ink (321), G ink (322) and B ink (323) respectively.

3. The display panel structure of claim 1, wherein The RGB color resist layer (32) has six different process sequences.

4. The display panel structure of claim 3, wherein The dam structure (70) comprises a BM layer (71) and a layer of ink layer (72), the BM layer (71) and the layer of ink layer (72) are arranged at positions relative to the non-display area (12), and the layer of ink layer (72) is the first layer of ink in the process of the RGB color resist layer (32).

5. The display screen structure according to claim 4, wherein The thickness of the dam structure (70) is greater than the combined thickness of the black matrix layer (31) and the RGB color resist layer (32) in the display area (11).

6. The display screen structure according to claim 5, wherein The dam structure (70) is fully distributed in the range of the non-display area (12).

7. The display screen structure according to claim 6, wherein The shape of the dam structure (70) can be circular, square, strip-shaped or arc-shaped.

8. The display screen structure of claim 6, wherein The dam structure (70) comprises a BM layer (71) and two layers of ink layer (73), and the two layers of ink layer (73) are the superposition of the first layer of ink and the second layer of ink in the process sequence of the RGB color resist layer (32).

9. The display screen structure of claim 4, wherein The dam structure (70) comprises a BM layer (71) and three layers of ink layer (74), and the three layers of ink layer (74) are the superposition of the first layer of ink, the second layer of ink and the third layer of ink in the process sequence of the RGB color resist layer (32).

10. The display screen structure of claim 4, wherein ​

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