Light enhancement and diffusion three-in-one structure for TLCM backlight structure

Abstract

The utility model relates to the technical field of liquid crystal display, in particular to a light enhancement and diffusion three-in-one structure for a TLCM backlight structure, which is characterized in that a first transparent glue layer is positioned at the bottoms of an upper light enhancement film and a lower light enhancement film, a diffusion film is positioned at the bottom of the first transparent glue layer, a second transparent glue layer is positioned at the bottom of the diffusion film, and a light guide plate is positioned at the bottom of the second transparent glue layer; the upper and lower brightness enhancement films are connected with the diffusion film through the first transparent glue layer, and the diffusion film is connected with the light guide plate through the second transparent glue layer, so that interfaces and gaps among the upper and lower brightness enhancement films, the diffusion film and the light guide plate are reduced; the optical performance fluctuation and fault risk caused by untight or unstable connection among the upper and lower brightness enhancement films, the diffusion film and the light guide plate are reduced, and the relative positions among the upper and lower brightness enhancement films, the diffusion film and the light guide plate are more fixed and accurate, so that the propagation and control of light are more consistent and predictable; therefore, the display uniformity and stability are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display technology, and in particular to a three-in-one structure for light enhancement and diffusion in TLCM backlight structure. Background Technology

[0002] The demand for liquid crystal displays (TLCMs) is becoming increasingly widespread, including in mobile phones, tablets, and laptops. End customers are demanding increasingly stringent display quality from modules and are also pursuing thinner and lighter modules. Currently, the common BL (Brightening) design involves multiple film materials: top and bottom light enhancement, diffusion, light guide plate, and reflection. This multi-film design is space-consuming, prone to dust accumulation, involves multiple processes, has difficulties in optical calibration, and is susceptible to wrinkling during testing. To shorten product development time, adjustments were made to the BL design structure during the design phase. Using adhesive, the design was changed from separate film materials to a three-in-one design combining top and bottom light enhancement and diffusion, achieving an overall improvement in the BL's optical performance.

[0003] Traditional designs often employ multiple membrane materials, which are relatively thick. These materials are prone to shifting, have poor resistance to wrinkles and prism scratches, and are difficult to adjust for optical effects, thus increasing project time. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a three-in-one structure for light enhancement and diffusion in TLCM backlight structures. It solves the technical problems of traditional multi-film designs, which often involve thicker films, easy film displacement, poor resistance to film wrinkles and prism scratches, difficulty in adjusting optical effects, and increased project time.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A three-in-one structure for light enhancement and diffusion in TLCM backlight structure includes upper and lower light enhancement films. A three-in-one mechanism is disposed at the bottom of the upper and lower light enhancement films. The three-in-one mechanism includes a first transparent adhesive layer, a diffusion film, a second transparent adhesive layer, and a light guide plate. The first transparent adhesive layer is located at the bottom of the upper and lower light enhancement films, the diffusion film is located at the bottom of the first transparent adhesive layer, the second transparent adhesive layer is located at the bottom of the diffusion film, and the light guide plate is located at the bottom of the second transparent adhesive layer.

[0007] Preferably, the top of the upper and lower brightening films is provided with a hydrophobic and oleophobic coating, and the top of the hydrophobic and oleophobic coating is provided with an antistatic coating.

[0008] Preferably, the diffusion film is provided with an anti-UV coating on top, and the anti-UV coating is provided with a hardening coating on top.

[0009] Preferably, the top of the light guide plate is provided with a wear-resistant coating, and the top of the wear-resistant coating is provided with a high-reflectivity coating.

[0010] Preferably, the antistatic coating is located above the hardened coating.

[0011] Preferably, the high-reflectivity coating is located below the diffusion film.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] First, the upper and lower brightness enhancement films and the diffuser film are connected with a first transparent adhesive layer, and the diffuser film and the light guide plate are connected with a second transparent adhesive layer. This reduces the interfaces and gaps between the upper and lower brightness enhancement films, the diffuser film, and the light guide plate, lowering the risk of optical performance fluctuations and malfunctions caused by loose or unstable connections between these components. The relative positions of each component are more fixed and precise, making light propagation and control more consistent and predictable. This effectively improves the uniformity and stability of the display, reduces the number of components and connection points, and lowers the potential for problems. The use of the first and second transparent adhesive layers provides uniform and strong adhesion, enhancing the resistance of the upper and lower brightness enhancement films, diffusion films, and light guide plates under various environmental conditions. This significantly improves the reliability and durability of the product during long-term use, and significantly shortens project development time. The simplified design reduces the selection, matching, and debugging work of the upper and lower brightness enhancement films, diffusion films, and light guide plates, reducing design complexity and uncertainty. The integrated assembly process is also more efficient and faster, reducing the number of processes and time on the production line, accelerating the product's progress from design to mass production, and helping to bring the product to market faster to meet market demands.

[0014] Second, by setting an antistatic coating, static electricity generation is reduced, dust adsorption is prevented, and the cleanliness and optical performance of the film are maintained. By setting a hydrophobic and oleophobic coating, cleaning is facilitated, water and grease residue is prevented, and good visual effects are maintained. By setting an anti-UV coating, ultraviolet rays are prevented from affecting the performance of the diffusion film 15, reducing aging and discoloration. By setting a hardening coating, the surface hardness of the diffusion film 15 is enhanced, its wear resistance is improved, and its service life is extended. By setting a wear-resistant coating, the wear resistance of the light guide plate 19 surface is enhanced, reducing scratches during use and transportation. By setting a high-reflectivity coating, the light guide plate 19's ability to reflect light is increased, improving light utilization and thus enhancing brightness. Attached Figure Description

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is an exploded view of the first transparent adhesive layer of this utility model;

[0018] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0019] Figure 4 For the present utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0020] Legend: 11. Upper and lower brightness enhancement films; 12. Hydrophobic and oleophobic coating; 13. Antistatic coating; 14. First transparent adhesive layer; 15. Diffuse film; 16. Anti-UV coating; 17. Hardening coating; 18. Second transparent adhesive layer; 19. Light guide plate; 21. Wear-resistant coating; 22. High-reflection coating. Detailed Implementation

[0021] This application provides a three-in-one structure for light enhancement and diffusion in TLCM backlight structures. It effectively solves the problems of traditional designs that often use multiple film materials, which are thick, prone to displacement, have poor resistance to wrinkles and prism scratches, and are difficult to adjust optical effects, thus increasing project time. By connecting the upper and lower light enhancement films and the diffusion film with a first transparent adhesive layer, and connecting the diffusion film and the light guide plate with a second transparent adhesive layer, the application reduces the interfaces and gaps between the upper and lower light enhancement films, the diffusion film, and the light guide plate, thereby reducing the impact of friction between these components. The optical performance fluctuations and failure risks caused by loose or unstable connections are mitigated. The more fixed and precise relative positions of the upper and lower brightness enhancement films, diffuser films, and light guide plates result in more consistent and predictable light propagation and control, effectively improving display uniformity and stability. This reduces the number of upper and lower brightness enhancement films, diffuser films, and light guide plates, as well as connection points, lowering potential failure points. The use of the first and second transparent adhesive layers provides uniform and strong adhesion, enhancing the durability of the upper and lower brightness enhancement films, diffuser films, and light guide plates under various environmental conditions. The improved reliability and durability of the product during long-term use significantly shortens project development time. The simplified design reduces the selection, matching, and debugging work of the upper and lower brightness enhancement films, diffusion films, and light guide plates, reducing design complexity and uncertainty. The integrated assembly process is also more efficient and faster, reducing the number of processes and time on the production line, accelerating the product from design to mass production, and helping to bring the product to market faster to meet market demands. The antistatic coating reduces static electricity generation, prevents dust adsorption, and maintains the cleanliness and optical performance of the film. The hydrophobic and oleophobic coating facilitates cleaning, prevents water and grease residue, and maintains good visual effects. The anti-UV coating prevents ultraviolet rays from affecting the performance of the diffusion film 15, reducing aging and discoloration. The hardening coating enhances the surface hardness of the diffusion film 15, improves its wear resistance, and extends its service life. The wear-resistant coating enhances the wear resistance of the light guide plate 19 surface, reducing scratches during use and transportation. The high-reflectivity coating increases the light reflectivity of the light guide plate 19, improving light utilization and thus enhancing brightness.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in this application embodiment effectively solves the technical problems of traditional multi-film material designs, which suffer from thicker film thicknesses, easy film displacement, poor resistance to film wrinkles and prism scratches, difficulty in adjusting optical effects, and increased project time. The overall idea is as follows: A three-in-one structure for light enhancement and diffusion in TLCM backlight structures, including upper and lower light enhancement films 11, with a three-in-one mechanism at the bottom of the upper and lower light enhancement films 11. The three-in-one mechanism includes a first transparent adhesive layer 14, a diffusion film 15, a second transparent adhesive layer 18, and a light guide plate 19. A transparent adhesive layer 14 is located at the bottom of the upper and lower brightness enhancement films 11, a diffusion film 15 is located at the bottom of the first transparent adhesive layer 14, a second transparent adhesive layer 18 is located at the bottom of the diffusion film 15, and a light guide plate 19 is located at the bottom of the second transparent adhesive layer 18. The upper and lower brightness enhancement films 11 and the diffusion film 15 are connected by the first transparent adhesive layer 14, and the diffusion film 15 and the light guide plate 19 are connected by the second transparent adhesive layer 18. This reduces the interfaces and gaps between the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate 19, and reduces the impact of the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate. The optical performance fluctuations and failure risks caused by loose or unstable connections between the upper and lower brightness enhancement films 11, diffuser films 15, and light guide plates 19 are reduced. The relative positions between the upper and lower brightness enhancement films 11, diffuser films 15, and light guide plates 19 are more fixed and precise, making the propagation and control of light more consistent and predictable. This effectively improves the uniformity and stability of the display, reduces the number of upper and lower brightness enhancement films 11, diffuser films 15, and light guide plates 19, and reduces the possible failure points. The use of the first transparent adhesive layer 14 and the second transparent adhesive layer 18 provides uniform and firm adhesion, enhances the tolerance of the upper and lower brightness enhancement films 11, diffuser films 15, and light guide plates 19 under various environmental conditions, greatly improves the reliability and durability of the product during long-term use, and significantly shortens the project development time. The simplified design reduces the selection, matching, and debugging work of the upper and lower brightness enhancement films 11, diffuser films 15, and light guide plates 19, reduces the complexity and uncertainty of the design, and the integrated assembly process is more efficient and faster, reducing the number of processes and time on the production line, accelerating the process from product design to mass production, and helping to bring the product to market faster to meet market demands.

[0024] The top of the upper and lower brightness enhancement films 11 is provided with a hydrophobic and oleophobic coating 12 to reduce glare, make the display image clearer in strong light environment, and reduce eye fatigue.

[0025] An antistatic coating 13 is provided on top of the hydrophobic and oleophobic coating 12; an anti-UV coating 16 is provided on top of the diffusion film 15; a hardening coating 17 is provided on top of the anti-UV coating 16; a second transparent adhesive layer 18 is provided on top of the hardening coating 17; an abrasion-resistant coating 21 is provided on top of the light guide plate 19; a high-reflectivity coating 22 is provided on top of the abrasion-resistant coating 21, and the high-reflectivity coating 22 is located below the diffusion film 15. The antistatic coating 13 reduces static electricity generation, prevents dust adsorption, and maintains the cleanliness and optical performance of the film. The hydrophobic and oleophobic coating... 12. It facilitates cleaning, prevents water and grease residue, and maintains good visual effects. The anti-UV coating 16 prevents ultraviolet rays from affecting the performance of the diffusion film 15, reducing aging and discoloration. The hardening coating 17 enhances the surface hardness of the diffusion film 15, improves its wear resistance, and extends its service life. The wear-resistant coating 21 enhances the wear resistance of the light guide plate 19 surface, reducing scratches during use and transportation. The high-reflectivity coating 22 increases the light reflectivity of the light guide plate 19, improves light utilization, and thus enhances brightness.

[0026] To address the problems existing in the prior art, this utility model provides a three-in-one structure for brightness enhancement and diffusion in TLCM backlight structures. The upper and lower brightness enhancement films 11 and the diffusion film 15 are connected with a first transparent adhesive layer 14, and the diffusion film 15 and the light guide plate 19 are connected with a second transparent adhesive layer 18. This reduces the interfaces and gaps between the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate 19, thereby reducing the optical performance fluctuations and failure risks caused by loose or unstable connections between the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate 19. 1. The relative positions between the diffuser film 15 and the light guide plate 19 are more fixed and precise, making the propagation and control of light more consistent and predictable. This effectively improves the uniformity and stability of the display, reduces the number of upper and lower brightness enhancement films 11, diffuser film 15, and light guide plate 19, and decreases the potential failure points. The use of the first transparent adhesive layer 14 and the second transparent adhesive layer 18 provides uniform and firm adhesion, enhancing the tolerance of the upper and lower brightness enhancement films 11, diffuser film 15, and light guide plate 19 under various environmental conditions, and greatly improving the long-term performance of the product. The reliability and durability of the process significantly shorten the project development time. The simplified design reduces the selection, matching, and debugging work of the upper and lower brightness enhancement films 11, diffusion films 15, and light guide plates 19, reducing the complexity and uncertainty of the design. The integrated assembly process is also more efficient and faster, reducing the number of processes and time on the production line, accelerating the product from design to mass production, and helping to bring the product to market faster to meet market demand. By setting an antistatic coating 13, static electricity generation is reduced, dust adsorption is prevented, and the cleanliness and optical performance of the film are maintained. By setting a hydrophobic and oleophobic coating 12, cleaning is facilitated, water and grease residue is prevented, and good visual effects are maintained. By setting an anti-UV coating 16, ultraviolet rays are prevented from affecting the performance of the diffusion film 15, reducing aging and discoloration. By setting a hardening coating 17, the surface hardness of the diffusion film 15 is enhanced, its wear resistance is improved, and its service life is extended. By setting a wear-resistant coating 21, the wear resistance of the surface of the light guide plate 19 is enhanced, reducing scratches during use and transportation. By setting a high-reflectivity coating 22, the light guide plate 19's ability to reflect light is increased, improving light utilization and thus enhancing brightness.

[0027] Working principle:

[0028] The first step involves connecting the upper and lower brightness enhancement films 11 and the diffusion film 15 with a first transparent adhesive layer 14, and connecting the diffusion film 15 and the light guide plate 19 with a second transparent adhesive layer 18. This reduces the interfaces and gaps between the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate 19, lowering the risk of optical performance fluctuations and malfunctions caused by loose or unstable connections between these components. The relative positions of the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate 19 are more fixed and precise, making light propagation and control more consistent and predictable. This effectively improves the uniformity and stability of the display, while reducing the number and connections of the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate 19. The use of the first transparent adhesive layer 14 and the second transparent adhesive layer 18 reduces potential failure points and provides uniform and strong adhesion. This enhances the resistance of the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate 19 under various environmental conditions, greatly improving the reliability and durability of the product during long-term use. It also significantly shortens project development time. The simplified design reduces the selection, matching, and debugging work of the upper and lower brightness enhancement films 11, the diffusion film 15, and the light guide plate 19, reducing design complexity and uncertainty. The integrated assembly process is also more efficient and faster, reducing the number of processes and time on the production line, accelerating the product's progress from design to mass production, and helping to bring the product to market faster to meet market demands.

[0029] The second step involves reducing static electricity generation and preventing dust adsorption by setting an antistatic coating 13, maintaining the cleanliness and optical performance of the film; facilitating cleaning by setting a hydrophobic and oleophobic coating 12, preventing water and grease residue, and maintaining good visual effects; preventing the impact of ultraviolet rays on the performance of the diffusion film 15 by setting an anti-UV coating 16, reducing aging and discoloration; enhancing the surface hardness of the diffusion film 15 by setting a hardening coating 17, improving its wear resistance, and extending its service life; enhancing the wear resistance of the light guide plate 19 surface by setting a wear-resistant coating 21, reducing scratches during use and transportation; and increasing the light reflectivity of the light guide plate 19 by setting a high-reflectivity coating 22, thereby improving light utilization and enhancing brightness.

[0030] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A brightness enhancement diffusion triad structure for TLCM backlight structure, comprising upper and lower brightness enhancement films (11), characterized in that, The upper and lower light enhancement film (11) is provided with a three-in-one mechanism at the bottom, which comprises a first transparent glue layer (14), a diffusion film (15), a second transparent glue layer (18) and a light guide plate (19), the first transparent glue layer (14) is located at the bottom of the upper and lower light enhancement film (11), the diffusion film (15) is located at the bottom of the first transparent glue layer (14), and the second transparent glue layer (18) is located at the bottom of the diffusion film (15). Wherein, the light guide plate (19) is located at the bottom of the second transparent glue layer (18).

2. A brightness enhancement diffuser three-in-one structure for TLCM backlight structure according to claim 1, characterized in that, The upper and lower light enhancement film (11) is provided with a hydrophobic and oleophobic coating (12) at the top. Wherein, the hydrophobic and oleophobic coating (12) is provided with an antistatic coating (13) at the top.

3. A brightness enhancement diffuser three-in-one structure for TLCM backlight structure according to claim 2, characterized in that, The diffusion film (15) is provided with an anti-UV coating (16) at the top, and the anti-UV coating (16) is provided with a hardening coating (17) at the top. Wherein, the hardening coating (17) is provided with a second transparent glue layer (18) at the top.

4. A brightness enhancement diffuser three-in-one structure for TLCM backlight structure according to claim 1, characterized in that, The light guide plate (19) is provided with a wear-resistant coating (21) at the top. Wherein, the wear-resistant coating (21) is provided with a high-reflective coating (22) at the top.

5. A brightness enhancement diffuser three-in-one structure for TLCM backlight structure according to claim 3, wherein, The antistatic coating (13) is located above the hardening coating (17).

6. A brightness enhancement diffuser three-in-one structure for TLCM backlight structure according to claim 4, wherein, The high-reflective coating (22) is located below the diffusion film (15).

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