CN219872022U

CN219872022U - Brightening and anti-adsorption display screen structure and electronic equipment

Info

Publication number: CN219872022U
Application number: CN202321349604.8U
Authority: CN
Inventors: 李春平; 郑怀玺; 李达明; 杨佳迪
Original assignee: Xinli Photoelectric Renshou Co Ltd
Current assignee: Xinli Photoelectric Renshou Co Ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-20
Anticipated expiration: 2033-05-30

Abstract

The utility model discloses a brightness enhancement and anti-adsorption display screen structure, wherein a prism structure is arranged on one surface of a lower polaroid, which is attached to a brightness enhancement film, so that the adsorption of the lower polaroid and the brightness enhancement film can be reduced, the phenomenon of Newton rings is lightened, the display effect of a liquid crystal display module is improved, and light emitted by backlight can be reflected by the prism structure again to TAC and then reflected back to the TAC for multiple times, thereby improving the light utilization rate and the brightness of the display module. The utility model further provides electronic equipment.

Description

Brightening and anti-adsorption display screen structure and electronic equipment

Technical Field

The utility model relates to the field of display screens, in particular to a brightness-enhancing anti-adsorption display screen structure and electronic equipment.

Background

The backlight source is one of key components of the liquid crystal display device, and the backlight source has the function of providing a light source to enable the liquid crystal display device to display normally because the liquid crystal does not emit light. In the prior art, the bottom surface of the lower polaroid of the second glass substrate of the liquid crystal display layer is smooth, so that the lower polaroid is easy to be locally adsorbed with the second brightness enhancement film of the backlight source, the brightness enhancement film is very thin, the lower polaroid cannot be completely flattened, and local protruding parts can be also contacted with the polaroid. When the backlight source emits light, due to the interference effect of light, the brightness difference can occur in the contact area and the non-contact area of the second brightness enhancement film of the backlight source and the lower polarizer, and the annular bright ring can be seen at a certain angle, namely the Newton ring problem. The backlight film is thin, so that the film cannot be absolutely flattened, and the flatness of the film can be influenced in the assembly process, so that Newton rings cannot be completely removed, and improvement and Newton ring relieving effects can be realized only by adopting a method.

For example, in the chinese patent No. 201821757290.4, a mobile phone display screen for improving display brightness is disclosed, which includes a backlight layer, a display layer, a touch layer and a cover glass sequentially disposed from bottom to top, where the backlight layer includes an iron frame, and a reflective film, a light guide plate, a diffusion sheet, a lower brightness enhancement film, an upper brightness enhancement film and a brightness enhancement sheet sequentially disposed in the iron frame from bottom to top, and the upper brightness enhancement film and the brightness enhancement sheet are adhered by black and black glue; one surface of the brightening piece, which is attached to the upper brightening film, is coated with a frosted coating. By adopting the scheme, the frosting effect is added on the brightness enhancement film, so that the brightness enhancement film is prevented from being adsorbed by the upper brightness enhancement film, and the problems of Newton rings and rainbow lines are effectively solved; the frosting effect can also cover slight scratches, so that the production yield is improved; the frosted surface coating is added to separate the brightness enhancement film from the black glue of the backlight layer, so that the problem of edge delamination of the brightness enhancement film during disassembly can be solved; the backlight brightness can be improved by 5% -8%, and the backlight has good market application value.

However, the application still adds frosting to the brightness enhancing sheet, and there are still serious newton's ring and rainbow-mark problems, and the frosting coating can seriously affect the backlight brightness.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides the brightness enhancement anti-adsorption display screen structure, wherein the prism structure is arranged on the surface, which is attached to the lower polarizer towards the brightness enhancement film, of the lower polarizer, so that the adsorption of the lower polarizer and the brightness enhancement film can be reduced, the phenomenon of Newton rings is lightened, the display effect of the liquid crystal display module is improved, and the prism structure can reflect light emitted by the backlight to the TAC again and then reflect the light back to the TAC for multiple times, thereby improving the light utilization rate and the brightness of the display module.

The technical problems to be solved by the utility model are realized by the following technical scheme:

a brightness enhancing anti-adsorption display screen structure comprising: a backlight assembly and a display screen assembly;

the backlight assembly comprises a rubber frame, a reflecting film, a light guide plate, a diffusion film and a light enhancement film;

the reflecting film, the light guide plate, the diffusion film and the light enhancement film are sequentially arranged in the iron frame from bottom to top;

the display screen assembly comprises a lower polaroid, an LCD panel and an upper polaroid;

the lower polaroid, the LCD panel and the upper polaroid are sequentially arranged on the backlight assembly from bottom to top;

a shading adhesive is arranged between the brightness enhancement film and the lower polaroid, and the periphery of the brightness enhancement film and the periphery of the lower polaroid are adhered through the shading adhesive; and a prism structure is arranged on one surface of the lower polarized light, which faces the light enhancement film.

Further, the prism structure is made of PET.

Further, the lower polarized light includes a PSA layer, a second TAC layer, a PVA layer, and a first TAC layer; the PSA layer, the second TAC layer, the PVA layer, and the first TAC layer are stacked in this order from top to bottom.

Further, the prism structure is arranged on the surface of the first TAC layer close to the light enhancement film.

Further, the prism structure is in a rugged saw-tooth shape.

Further, an LED light source is arranged at a position corresponding to the light guide plate on the inner side of the rubber iron frame.

Further, the thickness of the intensifying film is 70-90um.

Further, the upper surface of the upper polarizer is attached to the protective cover plate or the touch panel through OCA glue.

Further, the LCD panel is a TFT liquid crystal display panel.

An electronic device, comprising the brightening and anti-adsorption display screen structure of any one of the above.

The utility model has the following beneficial effects: a brightness enhancing anti-adsorption display screen structure comprising: a backlight assembly and a display screen assembly; the backlight assembly comprises a rubber frame, a reflecting film, a light guide plate, a diffusion film and a light enhancement film; the reflecting film, the light guide plate, the diffusion film and the light enhancement film are sequentially arranged in the iron frame from bottom to top; the display screen assembly comprises a lower polaroid, an LCD panel and an upper polaroid; the lower polaroid, the LCD panel and the upper polaroid are sequentially arranged on the backlight assembly from bottom to top; a shading adhesive is arranged between the brightness enhancement film and the lower polaroid, and the periphery of the brightness enhancement film and the periphery of the lower polaroid are adhered through the shading adhesive; and a prism structure is arranged on one surface of the lower polarized light, which faces the light enhancement film. According to the utility model, the prism structure is arranged on the surface, which is attached to the light enhancement film, of the lower polarizer, so that the absorption of the lower polarizer and the light enhancement film can be reduced, the Newton ring phenomenon can be lightened, the display effect of the liquid crystal display module is improved, and the prism structure can reflect light emitted by backlight to TAC again and then reflect the light back to the TAC for multiple times, so that the light utilization rate is improved, and the brightness of the display module is improved.

Drawings

FIG. 1 is a schematic diagram of a brightness enhancement anti-adsorption display screen according to the present utility model;

FIG. 2 is a schematic diagram of a lower polarization structure;

fig. 3 is a schematic view of a prism structure.

1. A display screen assembly; 11. a polaroid is arranged on the upper surface of the substrate; 12. an LCD panel; 13. a lower polarizer; 131. a PSA layer; 132. a second TAC layer; 133. a PVA layer; 134. a first TAC layer; 135. a prismatic structure; 1351. the reflected light is reflected out of the first TAC layer; 2. a backlight assembly; 21. a light enhancement film; 22. a diffusion film; 23. a light guide plate; 24. a reflective film; 25. a rubber iron frame; 3. shading adhesive; 4. and protecting the cover plate.

Detailed Description

The present utility model is described in detail below with reference to the drawings and the embodiments, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", or a third "may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, or can be communicated between two elements or the interaction relationship between the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Example 1

As shown in fig. 1, a brightness enhancement and anti-adsorption display screen structure includes: a backlight assembly 2 and a display panel assembly 1; the backlight assembly 2 includes a frame 25, a reflective film 24, a light guide plate 23, a diffusion film 22, and a light enhancement film 21; the reflecting film 24, the light guide plate 23, the diffusion film 22 and the light enhancement film 21 are sequentially arranged in the rubber frame 25 from bottom to top; the display screen assembly 1 comprises a lower polarizer 13, an LCD panel 12 and an upper polarizer 11; the lower polarizer 13, the LCD panel 12 and the upper polarizer 11 are sequentially installed on the backlight assembly 2 from bottom to top; a shading adhesive 3 is arranged between the brightness enhancement film 21 and the lower polarizer 13, and the periphery of the brightness enhancement film 21 and the periphery of the lower polarizer 13 are bonded through the shading adhesive 3; the surface of the lower polarizer 13, which faces the light enhancement film 21, is provided with a prism structure 135.

According to the utility model, the prism structure 135 is arranged on the surface, which is attached to the light enhancement film 21, of the lower polarizer 13, so that the absorption of the lower polarizer 13 and the light enhancement film 21 can be reduced, the phenomenon of Newton rings can be reduced, the display effect of the liquid crystal display module is improved, and the prism structure 135 can reflect the reflected light 1351, which is emitted by backlight and reaches the first TAC layer 134, back to the first TAC layer 134 again after multiple times, so that the light utilization rate is improved, and the brightness of the display module is improved.

Further, the prism structure 135 is made of PET.

Further, the prism structure 135 is in a rugged saw-tooth shape.

As shown in fig. 3, the prism angle of the prism structure 135 is preferably 45 degrees, and the prism pitch is 20 micrometers. When light emitted by the backlight module enters the lower polarizer 13 through the light enhancement film 21, part of the light is reflected back to the first TAC layer 134 by the prism structure 135 of the lower polarizer 13, thereby improving the light utilization rate and the brightness of the display module. Meanwhile, the prism structure 135 can reduce the adsorption between the lower polarizer 13 and the brightness enhancement film 21, reduce the phenomenon of Newton rings, and improve the display effect of the liquid crystal display module.

Further, as shown in fig. 2, the lower polarized light 13 includes a PSA layer 131, a second TAC layer 132, a pva layer 133, and a first TAC layer 134; the PSA layer 131, the second TAC layer 132, the pva layer 133, and the first TAC layer 134 are stacked in this order from top to bottom.

The PSA layer 131 is used for adhering to the LCD panel, and the adhesion of the PSA layer is derived from adhesion molecules in the adhesive, which can generate interaction force with the surface of the adherend through adsorption or chemical reaction, thereby achieving adhesion. The viscosity of the pressure-sensitive adhesive is related to factors such as temperature, humidity, pressure and the like, and the pressure-sensitive adhesive can usually exert the optimal bonding effect at room temperature; the pressure sensitive adhesive has good tearability and repeated adhesion, and does not leave residues or damage the surface of an adherend.

TAC, triacetate fiber is a synthetic fiber, which is obtained by chemical modification of natural cellulose; cellulose triacetate is characterized by high wrinkle resistance, heat resistance, light resistance, and chemical resistance. Its heat resistance is higher than that of common cellulose acetate, and can bear high-temperature ironing and dry-cleaning. Meanwhile, the chemical resistance is good, and the corrosion of acid, alkali, enzyme and other chemical substances can be resisted. Cellulose triacetate has excellent optical properties and physical properties as a material of the polarizing film. The high-quality polaroid has the advantages of high refractive index, good transparency and small dispersion, and can be manufactured.

PVA, polyvinyl alcohol, is an important material for manufacturing polarizers. The polarizer utilizes the absorption and reflection characteristics of the medium to realize the polarization of light, thereby achieving a specific optical effect. The lower polarizer 13 in this embodiment is formed by sandwiching a PVA layer 133 between a second TAC layer 132 and a first TAC layer 134. The PVA layer 133 is a material having high water absorbability, and can be made into a transparent, ordered polymer by stretching it, thereby imparting polarization properties thereto. In the process of manufacturing the polarizer, the PVA layer 133 is processed through processes such as stretching and cross bonding to form an ordered molecular structure, thereby realizing a polarizing effect of light.

Further, the prism structure 135 is disposed on the surface of the first TAC layer 134 near the brightness enhancement film 21.

Further, the upper surface of the upper polarizer 11 is attached to the protective cover plate 4 or the touch panel through OCA.

Further, the LCD panel 12 is a TFT liquid crystal display panel.

Example two

As shown in fig. 1, an LED light source is disposed at a position corresponding to the light guide plate 23 inside the rubber frame 25.

Wherein the rubber-iron frame 25 is integrally injection-molded with rubber iron for fixing, supporting and protecting each component of the backlight assembly 2; the reflecting film 24 is positioned at the inner side of the iron frame 25 and is used for reflecting light rays and improving the backlight effect; the light guide plate 23 is positioned above the reflective film 24 for uniformly transmitting light to the surface of the entire backlight assembly 2; the diffusion film 22 is located above the light guide plate 23, and is used for diffusing light and enhancing backlight effect; the light enhancement film 21 is located above the diffusion film 22, and is used for enhancing the brightness of light, so that the display effect is clearer and brighter.

Further, the thickness of the brightness enhancement film 21 is 70-90um. The brightness enhancement film is used to enhance the brightness of light, so that the display effect is clearer and brighter, and in this embodiment, the thickness of the brightness enhancement film 21 is preferably 80um.

Example III

The utility model also provides an electronic device, and the brightening anti-adsorption display screen structure adopted by the electronic device in the embodiment comprises: a backlight assembly 2 and a display panel assembly 1; the backlight assembly 2 includes a frame 25, a reflective film 24, a light guide plate 23, a diffusion film 22, and a light enhancement film 21; the reflecting film 24, the light guide plate 23, the diffusion film 22 and the light enhancement film 21 are sequentially arranged in the rubber frame 25 from bottom to top; the display screen assembly 1 comprises a lower polarizer 13, an LCD panel 12 and an upper polarizer 11; the lower polarizer 13, the LCD panel 12 and the upper polarizer 11 are sequentially installed on the backlight assembly 2 from bottom to top; a shading adhesive 3 is arranged between the brightness enhancement film 21 and the lower polarizer 13, and the periphery of the brightness enhancement film 21 and the periphery of the lower polarizer 13 are bonded through the shading adhesive 3; the surface of the lower polarizer 13, which faces the light enhancement film 21, is provided with a prism structure 135. According to the utility model, the prism structure 135 is arranged on the surface, which is attached to the light enhancement film 21, of the lower polarizer 13, so that the absorption of the lower polarizer 13 and the light enhancement film 21 can be reduced, the phenomenon of Newton rings can be reduced, the display effect of the liquid crystal display module is improved, and the prism structure 135 can reflect the reflected light 1351, which is emitted by backlight and reaches the first TAC layer 134, back to the first TAC layer 134 again after multiple times, so that the light utilization rate is improved, and the brightness of the display module is improved.

Finally, it should be noted that the foregoing embodiments are merely for illustrating the technical solution of the embodiments of the present utility model and are not intended to limit the embodiments of the present utility model, and although the embodiments of the present utility model have been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the embodiments of the present utility model may be modified or replaced with the same, and the modified or replaced technical solution may not deviate from the scope of the technical solution of the embodiments of the present utility model.

Claims

1. The utility model provides a brightness enhancement prevents adsorbing display screen structure which characterized in that includes: a backlight assembly (2) and a display screen assembly (1);

the backlight assembly (2) comprises a rubber frame (25), a reflecting film (24), a light guide plate (23), a diffusion film (22) and a light enhancement film (21);

the reflecting film (24), the light guide plate (23), the diffusion film (22) and the light enhancement film (21) are sequentially arranged in the iron colloid frame (25) from bottom to top;

the display screen assembly (1) comprises a lower polaroid (13), an LCD panel (12) and an upper polaroid (11);

the lower polaroid (13), the LCD panel (12) and the upper polaroid (11) are sequentially arranged on the backlight assembly (2) from bottom to top;

a shading adhesive (3) is arranged between the brightness enhancement film (21) and the lower polaroid (13), and the periphery of the brightness enhancement film (21) and the periphery of the lower polaroid (13) are bonded through the shading adhesive (3); and a prism structure (135) is arranged on one surface, which faces the light enhancement film (21), of the lower polaroid (13) in a bonding way.

2. The brightness enhancing and anti-adsorption display screen structure of claim 1, wherein: the prism structure (135) is made of PET.

3. The brightness enhancing and anti-adsorption display screen structure of claim 2, wherein: the lower polarizer (13) includes a PSA layer (131), a second TAC layer (132), a PVA layer (133) and a first TAC layer (134); the PSA layer (131), the second TAC layer (132), the PVA layer (133) and the first TAC layer (134) are stacked in this order from top to bottom.

4. A brightness enhancing and anti-adsorption display screen structure according to claim 3, wherein: the prism structure (135) is arranged on the surface of the first TAC layer (134) close to the light enhancement film (21).

5. The brightness enhancing and anti-adsorption display screen structure of claim 1, wherein: the prismatic structure (135) is in the shape of a rugged saw tooth.

6. The brightness enhancing and anti-adsorption display screen structure of claim 1, wherein: and an LED light source is arranged at a position corresponding to the light guide plate (23) on the inner side of the rubber iron frame (25).

7. The brightness enhancing and anti-adsorption display screen structure of claim 1, wherein: the thickness of the light enhancement film (21) is 70-90um.

8. The brightness enhancing and anti-adsorption display screen structure of claim 1, wherein: the upper surface of the upper polaroid (11) is attached to the protective cover plate (4) or the touch panel through OCA glue.

9. The brightness enhancing and anti-adsorption display screen structure of claim 1, wherein: the LCD panel (12) is a TFT liquid crystal display panel.

10. An electronic device comprising a brightness enhancing anti-adsorption display structure according to any one of claims 1 to 9.