Display

By using a dam structure with red and blue color filters in the IPS display to create 'dark areas', the problem of insufficient contrast in IPS mode displays is solved, achieving both improved contrast and reduced cost.

CN120802531APending Publication Date: 2025-10-17HKC CORP LTD
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Patent Information

Application Number
CN202511067757.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-31
Publication Date
2025-10-17

AI Technical Summary

Technical Problem

The contrast ratio of existing IPS mode displays needs to be improved.

Method used

The first dam structure using red film and the second dam structure using blue film overlap to form a natural 'dark area', replacing the black matrix. This effectively blocks light from non-pixel areas, reduces light absorption, and visually enhances the contrast between bright and dark areas.

Benefits of technology

While maintaining viewing angle brightness and power consumption levels, the contrast of the display is significantly improved, the manufacturing process is simplified, and costs are reduced.

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Abstract

The embodiment of the invention relates to the technical field of display, and provides a display which comprises a display panel, a color film layer and a backlight module, the display panel comprises a color film substrate, an array substrate and a liquid crystal layer, the color film layer comprises a red color film, a blue color film and a green color film, the red color film comprises a first dam structure and a plurality of red substrates, and the blue color film comprises a second dam structure and a plurality of green substrates. The first dam structure is provided with a plurality of first collimation through holes which are distributed in an array mode in the row direction and the column direction, and each red substrate covers one first collimation through hole in the thickness direction; the green color film comprises a plurality of green substrates, and each green substrate covers one first collimation through hole in the thickness direction; each blue color film comprises a second dam structure and a plurality of blue substrates, the second dam structure is provided with a plurality of second collimation through holes, the second collimation through holes are overlapped with the first collimation through holes, and each blue substrate covers one first collimation through hole in the thickness direction; projections of the red substrate, the blue substrate and the green substrate in the thickness direction are not overlapped with each other.
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Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of display, and in particular, to a display. BACKGROUND

[0002] Contrast ratio is the ratio of the brightness of the same point on the screen when it is the brightest (white) and when it is the darkest (black). High contrast means relatively high brightness and the degree of color presentation. Contrast is one of the important evaluation parameters of the performance of all displays on the market. LCD (Liquid Crystal Display) has the advantages of low cost, high resolution, wide color gamut, and is widely used in various display devices, such as televisions, digital billboards, notebooks, instruments, etc., covering various industries such as consumer, medical, aviation / vehicle commercial display, etc.

[0003] Among different display modes of LCD, such as TN (Twisted Nematic), VA (Vertical Alignment), IPS (In-Plane Switching), IPS mode has the characteristics of wide viewing angle, and is the most advantageous display mode at present. However, the contrast ratio of the display of IPS mode is generally 800-1500, which needs to be improved compared with the VA mode with a contrast ratio of 3000-5000. SUMMARY

[0004] Embodiments of the present application aim to provide a display, which aims to solve the problem that the contrast ratio of the existing display of IPS mode needs to be improved.

[0005] The present application provides a display, which has a row direction, a column direction and a thickness direction perpendicular to each other, and comprises:

[0006] A display panel, comprising a color filter substrate, an array substrate and a liquid crystal layer distributed in sequence along the thickness direction, the color filter substrate and the array substrate being spaced apart and oppositely arranged, and the liquid crystal layer being located between the array substrate and the color filter substrate;

[0007] A color film layer is mounted on the color film substrate or the array substrate, and includes a red color film, a blue color film, and a green color film. The red color film includes a first dam structure and a plurality of red base pieces. The first dam structure has a plurality of first collimating through holes arranged in an array along the row direction and the column direction. Each red base piece covers one first collimating through hole along the thickness direction. The green color film includes a plurality of green base pieces. Each green base piece covers one first collimating through hole along the thickness direction. The blue color film includes a second dam structure and a plurality of blue base pieces. The second dam structure has a plurality of second collimating through holes. The second collimating through holes overlap the first collimating through holes along the thickness direction. Each blue base piece covers one first collimating through hole along the thickness direction. The projections of the red base pieces, the blue base pieces, and the green base pieces along the thickness direction do not overlap each other.

[0008] A backlight module is located on a side of the array substrate away from the color film substrate, and is configured to provide a light source for the conductive display panel.

[0009] In one embodiment, the bottom surfaces of the red base pieces, the blue base pieces, and the green base pieces are flush along the thickness direction.

[0010] In one embodiment, the top surfaces of the red base pieces, the blue base pieces, and the green base pieces are flush along the thickness direction.

[0011] In one embodiment, the red base pieces, the blue base pieces, and the green base pieces are embedded in the first collimating through holes.

[0012] In one embodiment, along the row direction, the red base pieces, the blue base pieces, and the green base pieces are alternately arranged in sequence.

[0013] In one embodiment, along the column direction, the red base pieces and the blue base pieces are alternately arranged.

[0014] In one embodiment, along the column direction, the green base pieces are arranged adjacent to each other.

[0015] In one embodiment, along the row direction, two first collimating through holes are arranged between two adjacent red base pieces.

[0016] In one embodiment, along the row direction, two first collimating through holes are arranged between two adjacent green base pieces.

[0017] In one embodiment, along the row direction, two first collimating through holes are arranged between two adjacent blue base pieces.

[0018] In one of the embodiments, the first dam structure and the second dam structure overlap in the thickness direction.

[0019] In one of the embodiments, the first dam structure and the second dam structure are arranged in sequence along the thickness direction.

[0020] In one of the embodiments, the first dam structure and the second dam structure abut along the thickness direction.

[0021] In one of the embodiments, the second dam structure is located on the side of the first dam structure away from the backlight module, and the size of the second dam structure in the thickness direction gradually decreases away from the first dam structure.

[0022] In one of the embodiments, the first dam structure and the red substrate are integrally formed.

[0023] In one of the embodiments, the second dam structure and the blue substrate are integrally formed.

[0024] The display provided by the embodiments of the present application has the following beneficial effects: the conventional IPS display uses a black matrix (BM) to shield the light in the non-pixel area to prevent light leakage, but this also causes a loss of part of the light energy; the display provided by the present application uses the first dam structure of the red color film and the second dam structure of the blue color film to overlap, forming a natural "dark area", effectively blocking the light in the non-pixel area, replacing the black matrix, not only reducing the process and cost of one mask, but also reducing the absorption of the black matrix to the light, more light can pass through the pixel area, and the overlapping area effectively blocks the light in the non-pixel area, visually enhancing the contrast between the bright area and the dark area, solving the problem that the contrast of the existing IPS mode display needs to be improved, thereby improving the contrast of the display while maintaining the viewing angle brightness and power consumption level. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 The structural schematic diagram of the display provided by the embodiments of the present application;

[0027] Figure 2 ​Figure 1 An exploded view of a color filter layer of the display in

[0028] Figure 3 For Figure 1 A force schematic diagram of the display in

[0029] Figure 4 For Figure 1 A sectional view of the color filter layer along A-A line in

[0030] Figure 5 For Figure 1 A sectional view of the color filter layer along B-B line in

[0031] Figure 6 For A structural schematic diagram of the display in the related art;

[0032] Figure 7 For Figure 6 An exploded view of a color filter layer of the display in

[0033] Figure 8 For Figure 6 A force schematic diagram of the display in

[0034] Figure 9 For Figure 6 A sectional view of the color filter layer along C-C line in

[0035] Figure 10 For Figure 6 A sectional view of the color filter layer along D-D line in

[0036] Figure 11 For A contrast comparison diagram of the display provided in the present application and the display in the related art;

[0037] Figure 12 For A schematic diagram of transmittance comparison spectrum of different color filter overlaps;

[0038] Figure 13 A schematic diagram of transmittance comparison spectrum of different overlap regions.

[0039] In the drawings, various reference numerals refer to various identical or similar elements.

[0040] X, row direction; Y, column direction; Z, thickness direction;

[0041] 11, black matrix; 12, first color filter; 13, second color filter; 14, third color filter;

[0042] 100, display panel; 110, color filter substrate; 120, array substrate; 130, liquid crystal layer;

[0043] 200, red color film; 210, first dam structure; 211, first collimating through hole; 220, red base sheet;

[0044] 300, blue color film; 310, second dam structure; 311, second collimating through hole; 320, blue base sheet;

[0045] 400, green color film; 410, green base sheet. DETAILED DESCRIPTION

[0046] Embodiments of the present application are described below in detail with reference to the accompanying drawings, in which examples of the embodiments are shown. Like or similar elements are denoted throughout the drawings by like or similar reference designators, and the description of the same or like elements can be omitted. The embodiments described below are examples for explaining the present application, and should not be understood as limiting the present application.

[0047] Reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the application. Thus, the appearance of the phrases "in one embodiment" or "in some embodiments" in various places throughout the specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0048] In the description of the embodiments of the present application, it is to be understood that the orientations or positional relationships indicated by the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like are based on the orientations or positional relationships shown in the drawings, and are merely intended for convenience and simplicity of description of the embodiments of the present application and simplification of the description, and thus cannot be construed to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus cannot be construed as limiting the embodiments of the present application.

[0049] In addition, the terms "first", "second", and the like are used only for the purpose of description, and cannot be construed to indicate or imply relative importance or to implicitly indicate the number of the indicated technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0050] In the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connect", "fix", and the like should be broadly understood, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] Please combine Figures 1 to 5 The present application provides a display. The display has a row direction X, a column direction Y and a thickness direction Z perpendicular to each other. The display includes a display panel 100, a color film layer and a backlight module. The display panel 100 includes a color film substrate 110, an array substrate 120 and a liquid crystal layer 130 distributed in sequence along the thickness direction Z of the display. The color film substrate 110 is spaced apart from and opposite to the array substrate 120, and the liquid crystal layer 130 is located between the array substrate 120 and the color film substrate 110.

[0052] The color film layer is mounted on the color film substrate 110 or the array substrate 120, that is, the color film layer can be provided on the color film substrate 110 or the array substrate 120, which is not specifically limited here. Figure 3 In a possible embodiment shown, the color film layer is provided on the side of the array substrate 120 close to the color film substrate 110. The color film layer includes a red color film 200, a blue color film 300 and a green color film 400. The red color film 200 includes a first dam structure 210 and a plurality of red color filaments 220. The first dam structure 210 has a plurality of first collimating through holes 211 arranged in an array along the row direction X of the display and the column direction Y of the display. Each red color filament 220 covers one first collimating through hole 211 in the thickness direction Z. The green color film 400 includes a plurality of green color filaments 410. Each green color filament 410 covers one first collimating through hole 211 in the thickness direction Z. The blue color film 300 includes a second dam structure 310 and a plurality of blue color filaments 320. The second dam structure 310 of the blue color film 300 has a plurality of second collimating through holes 311. The second collimating through holes 311 overlap the first collimating through holes 211 in the thickness direction Z. Each blue color filament 320 covers one first collimating through hole 211 in the thickness direction Z. The projections of the red color filaments 220, the blue color filaments 320 and the green color filaments 410 in the thickness direction Z do not overlap each other.

[0053] The backlight module is located on the side of the array substrate 120 away from the color film substrate 110. The backlight module is used to provide a light source for the conductive display panel 100.

[0054] Optionally, the backlight module is a direct type backlight module.

[0055] In some other embodiments, the backlight module can also be a side-in backlight module, and the present application does not make specific limitations thereto.

[0056] By applying a driving voltage to the display panel 100, the liquid crystal molecules in the liquid crystal layer 130 can be rotated, so that the light of the backlight module can pass through the display panel 100, and the display can display a picture.

[0057] For comparison, in combination with Figures 6 to 10 The IPS display in the related art includes a display panel 100, a color filter layer, and a backlight module, the display panel 100 includes a color filter substrate 110, an array substrate 120, and a liquid crystal layer 130 distributed in turn along a thickness direction Z, the color filter layer includes a black matrix 11 (BM) for shielding light in a non-pixel area to prevent light leakage, but this also causes a loss of part of light energy. The black matrix 11 has through holes distributed in a row-column matrix. The color filter layer further includes a first color filter 12, a second color filter 13, and a third color filter 14, which are arranged in the through holes of the black matrix 11, respectively.

[0058] In combination with Table 1, and in reference to Figure 12 and Figure 13 The overlapping area (R*G) of the black matrix 11, the red base sheet 220, the blue base sheet 320, the green base sheet 410, the red color filter 200, and the green color filter 400, the overlapping area (G*B) of the green color filter 400 and the blue color filter 300, the overlapping area (B*R) of the blue color filter 300 and the red color filter 200, and the overlapping area (R*G*B) of the red color filter 200, the green color filter 400, and the blue color filter 300, have different light transmittances. Among them, the common black matrix 11 adopts a resin material with black ink components, and the light shielding degree is measured by OD value. The larger the OD value, the better the light shielding. Taking a conventional material with OD = 4.3 as a reference, it can be seen that the transmittance (1.2%) of the overlapping area B*R is less than the transmittance (2%) of the black matrix 11, that is, the display provided by the present application improves the contrast.

[0059] In addition, in combination with Figure 11 The larger the OD value of the black matrix 11, the higher the contrast (CR), and the CR of the R*B overlapping area can be effectively improved by 50% to 70% relative to the black matrix 11 (OD = 4.3), greatly improving the contrast. At the same time, by replacing the black matrix 11 with the R*B overlapping area, the color gamut can be increased from the current highest NTSC 130% to more than 150%, and the maximum can reach 170%.

[0060] From Table 1, it can be concluded that the transmittance of the R*G*B overlapping area of ​​the three is the smallest. However, since the overlapping area of ​​the three will cause a relatively high step difference (the thickness of the single-layer RGB film is 1.5~3.0um), a high step difference will cause problems such as color resistance peeling and poor PI alignment, which will cause other process defects and is not suitable for replacing the black matrix 11.

[0061] Table 1 Comparison of transmittance of black matrix 11 and different overlapping areas

[0062]

[0063] In the related art, the first way to improve the contrast is to improve the contrast by selecting a low-scattering-negative liquid crystal design (low phase delay), which will reduce the transmittance of the display panel 100, resulting in increased power consumption and cost. The second way to improve the contrast is to increase the coverage area of ​​the black matrix 11, which will still reduce the transmittance and increase power consumption. The third way to improve the contrast is to select a quasi-collimated backlight source, which can usually increase the contrast by 20% to 100%, but will cause the viewing angle brightness to decrease, affecting the display effect.

[0064] The display provided by the present application adopts the overlapping of the first dam structure 210 of the red color film 200 and the second dam structure 310 of the blue color film 300 to form a natural "dark area", which effectively blocks the light in the non-pixel area and replaces the black matrix 11. It not only reduces the process and cost of a mask, but also reduces the absorption of light by the black matrix 11, so that more light can pass through the pixel area. At the same time, the overlapping area effectively blocks the light in the non-pixel area, visually enhancing the contrast between the bright area and the dark area, solving the problem that the contrast of the existing IPS mode display needs to be improved, thereby improving the contrast of the display while maintaining the viewing angle brightness and power consumption level.

[0065] Combine Figure 11, the traditional IPS display uses a black matrix 11 (BM) to block the light in the non-pixel area to prevent light leakage, but this also causes a loss of part of the light energy. The display provided in the present application uses the first dam structure 210 of the red color film 200 and the second dam structure 310 of the blue color film 300 to overlap, forming a natural "dark area", effectively blocking the light in the non-pixel area, replacing the black matrix 11, not only reducing the process and cost of one mask, but also reducing the absorption of light by the black matrix 11, more light can pass through the pixel area, while the overlapping area effectively blocks the light in the non-pixel area, visually enhancing the contrast between the bright area and the dark area, solving the problem of the existing IPS mode display that the contrast needs to be improved, thereby improving the contrast of the display while maintaining the viewing angle brightness and power consumption level.

[0066] In combination with the spectrum diagram shown in Figure 12 and Figure 13 , it can be seen that the transmittance of the R*G overlap area and the G*B overlap area is much higher than that of the black matrix 11, because the transmittance spectrum of the red color film 200 and the green color film 400, and the green color film 400 and the blue color film 300, respectively at 480nm-530nm and 580nm-630nm, cannot be absorbed and filtered, so the transmittance is high, and the contrast cannot be improved, so the black matrix 11 cannot be replaced.

[0067] It should also be noted that in combination with Figure 3 and Figure 8 , the color film layer in the related art has only the black matrix 11 in the thickness direction Z, and the stiffness is poor and the resistance to external force is weak. The color film layer provided in the present application has the first dam structure 210 and the second dam structure 310 overlapping in the thickness direction Z and supporting each other, which can effectively improve the rigidity of the display panel 100 and reduce deformation or damage caused by external force.

[0068] In some embodiments, in combination with Figure 4 and Figure 5 , the bottom surfaces of the red substrate 220, the blue substrate 320, and the green substrate 410 are flush in the thickness direction Z. Based on this, after the light is emitted from the backlight module, it can be more uniformly irradiated onto each red substrate 220, blue substrate 320, and green substrate 410, which can reduce irregular reflection and scattering of light between the red substrate 220, blue substrate 320, and green substrate 410, and further improve the contrast.

[0069] In addition, the bottom surfaces of the red substrate 220, the blue substrate 320, and the green substrate 410 are of the same height, reducing light loss caused by inconsistent heights, reducing color deviation caused by uneven light irradiation, improving light utilization, and enhancing color consistency.

[0070] In some embodiments, in combination with Figure 3 , the top surfaces of the red base sheet 220, the blue base sheet 320 and the green base sheet 410 are flush in the thickness direction Z. Based on this, the light rays can maintain a relatively consistent path when passing through the color film layer, reducing scattering phenomena caused by the difference in the height of the top surfaces, helping to improve the clarity of the picture, helping to reduce light leakage in the non-pixel area, thereby enhancing the contrast between the pixel area and the non-pixel area, making the picture more vivid.

[0071] In some embodiments, in combination with Figure 4 and Figure 5 , the thicknesses of the red base sheet 220, the blue base sheet 320 and the green base sheet 410 are the same. The red base sheet 220, the blue base sheet 320 and the green base sheet 410 with the same thickness can ensure that the path of the light rays is more consistent when passing through the color film layer, reducing light scattering and reflection caused by the difference in thickness, thereby improving the uniformity and brightness consistency of the display, and also reducing the brightness inconsistency of different pixels caused by the difference in thickness, ensuring the brightness consistency of the pixel area, and enhancing the contrast between the pixel area and the non-pixel area.

[0072] In some embodiments, in combination with Figure 1 , Figure 4 and Figure 5 , the red base sheet 220, the blue base sheet 320 and the green base sheet 410 are embedded in the first collimating through hole 211, ensuring the accurate position of each red base sheet 220, blue base sheet 320 and green base sheet 410, which helps to reduce cross talk and color mixing between pixels, improve the clarity and color accuracy of the image. Moreover, the red base sheet 220, the blue base sheet 320 and the green base sheet 410 embedded in the first collimating through hole 211 can more effectively guide the light rays to pass through the first collimating through hole 211, reduce scattering and reflection of the light rays, and improve the utilization rate of the light rays, thereby enhancing the brightness and contrast of the display.

[0073] In one embodiment, in combination with Figure 3 , the red base sheet 220, the blue base sheet 320 and the green base sheet 410 respectively seal the first collimating through hole 211 in which they are located, reducing scattering and reflection of light rays at the edge of the first collimating through hole 211, more effectively blocking the light rays in the non-pixel area, reducing light leakage, thereby enhancing the contrast between the pixel area and the non-pixel area.

[0074] In some embodiments, in combination with Figure 1 and Figure 2Two first collimating through holes 211 are distributed between two red base pieces 220 adjacent in the row direction X, which is conducive to the uniform distribution of the red base pieces 220 and the mixed distribution of base pieces of different colors, optimizes the mixing of light rays of different colors, and makes the color transition more natural and smooth.

[0075] In some embodiments, in combination with Figure 1 and Figure 2 Two first collimating through holes 211 are distributed between two green base pieces 410 adjacent in the row direction X, which is conducive to the uniform distribution of the green base pieces 410 and the mixed distribution of base pieces of different colors, optimizes the mixing of light rays of different colors, and makes the color transition more natural and smooth.

[0076] In some embodiments, in combination with Figure 1 and Figure 2 Two first collimating through holes 211 are distributed between two blue base pieces 320 adjacent in the row direction X, which is conducive to the uniform distribution of the blue base pieces 320 and the mixed distribution of base pieces of different colors, optimizes the mixing of light rays of different colors, and makes the color transition more natural and smooth.

[0077] In some embodiments, in combination with Figure 1 and Figure 5 In the row direction X, the red base pieces 220, the blue base pieces 320 and the green base pieces 410 are alternately distributed. Based on this, in the row direction X, the red base pieces 220 and the green base pieces 410 are adjacent, which is conducive to increasing the overlapping area of the first dam structure 210 and the second dam structure 310, forming a "dark area", replacing the black matrix 11, and improving the contrast.

[0078] In some embodiments, in combination with Figure 1 and Figure 4 In the column direction Y, the red base pieces 220 and the blue base pieces 320 are alternately distributed. Based on this, in the column direction Y, the red base pieces 220 and the green base pieces 410 are adjacent, which is conducive to increasing the overlapping area of the first dam structure 210 and the second dam structure 310, forming a "dark area", replacing the black matrix 11, and improving the contrast.

[0079] In some embodiments, in combination with Figure 1 In the column direction Y, the green base pieces 410 are adjacent to the green base pieces 410. Based on this, in the column direction Y, the green light rays transmitted by the green base pieces 410 are adjacent, which avoids color crosstalk, and is conducive to improving the clarity of the image and the accuracy of the color.

[0080] In some embodiments, in combination with Figure 5The first dam structure 210 and the second dam structure 310 of the blue color film 300 overlap in the thickness direction Z of the backlight module, thereby enhancing the rigidity in the thickness direction Z and preventing deformation or damage during manufacturing or use. The overlapping dam structures can form a more effective barrier, which can more effectively isolate light, reduce color crosstalk, and improve image clarity and color accuracy; it can reduce light scattering and leakage, thereby enhancing the contrast of the display, making the dark areas darker and the bright areas brighter.

[0081] In some embodiments, combined Figure 5 The first dam structure 210 and the second dam structure 310 of the blue color film 300 are arranged in sequence along the thickness direction Z of the backlight module, which can enhance the mechanical strength of the entire structure and improve its ability to resist external pressure and impact. The first dam structure 210 and the second dam structure 310 of the blue color film 300 arranged in sequence can form a multi-layer barrier, further effectively isolate light, further reduce light scattering and leakage, and thus enhance the contrast of the display.

[0082] In one embodiment, the combination Figure 5 The first dam structure 210 of the red color film 200 and the second dam structure 310 of the red color film 200 are in contact with each other along the thickness direction Z of the backlight module. The two overlap to form a "U"-shaped overlapping area, that is, a "U"-shaped step wall is formed, which can effectively improve the rigidity of the display panel 100. When under the action of external force, the resistance of the display panel 100 can be enhanced, and the deformation / damage caused by the external force can be reduced.

[0083] Among them, the second dam structure 310 of the blue color film 300 is located above the first dam structure 210 of the red color film 200, and the blue substrate 320 of the blue color film 300 and the red substrate 220 of the red color film 200 are horizontal and nested with each other, thereby enhancing the bonding force and improving the strength of the display panel 100.

[0084] In one embodiment, the second dam structure 310 of the blue color filter 300 is located on the side of the first dam structure 210 away from the backlight module. The dimension of the second dam structure 310 of the blue color filter 300 in the backlight module thickness direction Z gradually decreases as it moves away from the first dam structure 210. By gradually reducing the thickness of the second dam structure 310, the light propagation path can be optimized, light scattering and leakage can be reduced, and light utilization efficiency can be improved, thereby increasing the brightness and energy efficiency of the display.

[0085] In one embodiment, the combination Figure 2, the first dam structure 210 and the red substrate 220 of the backlight module are integrally formed. Through the integral forming, the assembling steps are reduced, the manufacturing process is simplified, the connection between the first dam structure 210 and the red substrate 220 is more firm, the looseness or damage caused by the separated structure is reduced, the gap is reduced, the light is more effectively isolated, the color crosstalk is reduced, the definition of the image and the accuracy of the color are improved, the scattering and leakage of the light can be reduced, and thus the contrast of the display is enhanced.

[0086] In one of the embodiments, the second dam structure 310 of the blue color film 300 and the blue substrate 320 of the backlight module are integrally formed. Through the integral forming, the assembling steps are reduced, the manufacturing process is simplified, the connection between the second dam structure 310 and the blue substrate 320 is more firm, the looseness or damage caused by the separated structure is reduced, the gap is reduced, the light is more effectively isolated, the color crosstalk is reduced, the definition of the image and the accuracy of the color are improved, the scattering and leakage of the light can be reduced, and thus the contrast of the display is enhanced.

[0087] The above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A display, characterized in that: The display has a row direction, a column direction, and a thickness direction that are perpendicular to each other, and the display includes: The display panel comprises a color filter substrate, an array substrate and a liquid crystal layer sequentially distributed along the thickness direction, wherein the color filter substrate is spaced apart from and arranged opposite to the array substrate, and the liquid crystal layer is located between the array substrate and the color filter substrate; A color filter layer is mounted on the color filter substrate or the array substrate, the color filter layer including a red color filter, a blue color filter, and a green color filter. The red color filter includes a first dam structure and a plurality of red substrates, the first dam structure having a plurality of first collimating through holes distributed in an array along the row direction and the column direction, and each of the red substrates covers one of the first collimating through holes in the thickness direction. The green color filter includes a plurality of green substrates, and each of the green substrates covers one of the first collimating through holes in the thickness direction. The blue color filter includes a second dam structure and a plurality of blue substrates, the second dam structure having a plurality of second collimating through holes, the second collimating through holes overlapping with the first collimating through holes in the thickness direction, and each of the blue substrates covers one of the first collimating through holes in the thickness direction. The projections of the red, blue, and green substrates in the thickness direction do not overlap with each other. The backlight module is located on a side of the array substrate away from the color filter substrate, and is used to provide a light source for the conductive display panel.

2. The display according to claim 1, wherein: The bottom surfaces of the red substrate, the blue substrate and the green substrate are flush with each other in the thickness direction; and / or the top surfaces of the red substrate, the blue substrate and the green substrate are flush with each other in the thickness direction.

3. The display according to claim 1, wherein: The red substrate, the blue substrate and the green substrate are all embedded in the first alignment through hole.

4. The display according to claim 1, wherein: The display further includes at least one of the following: In the row direction, the red substrate, the blue substrate and the green substrate are alternately distributed in sequence; In the column direction, the red substrates and the blue substrates are alternately distributed; In the column direction, the green substrates are arranged adjacent to the green substrates.

5. The display according to claim 1, wherein: The display further includes at least one of the following: Two first collimating through holes are distributed between two adjacent red substrates in the row direction; Two first alignment through holes are distributed between two adjacent green substrates in the row direction; Two first collimating through holes are distributed between two adjacent blue substrates in the row direction.

6. The display according to claim 1, wherein: The first dam structure and the second dam structure overlap in the thickness direction.

7. The display according to claim 1, wherein: The first dam structure and the second dam structure are sequentially arranged along the thickness direction.

8. The display according to claim 7, wherein: The first dam structure and the second dam structure abut against each other along the thickness direction.

9. The display according to claim 7, wherein: The second dam structure is located on a side of the first dam structure away from the backlight module, and a dimension of the second dam structure in the thickness direction gradually decreases away from the first dam structure.

10. The display according to any one of claims 1 to 9, characterized in that: The first dam structure and the red substrate are integrally formed; and / or the second dam structure and the blue substrate are integrally formed.