CN213023851U

CN213023851U - Display screen capable of enlarging visual angle

Info

Publication number: CN213023851U
Application number: CN202022171500.5U
Authority: CN
Inventors: 罗杰
Original assignee: Dongguan Team Source Display Technology Co ltd
Current assignee: Dongguan Team Source Display Technology Co ltd
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2021-04-20
Anticipated expiration: 2030-09-28

Abstract

The utility model discloses a display screen for enlarging the visual angle, the display screen has a multilayer structure, including LCD display screen, polaroid, LED and light guide plate, the polaroid includes upper polaroid and lower polaroid, upper polaroid and lower polaroid are set up in the upper and lower both sides of LCD display screen respectively, carry on the centre gripping parcel with LCD display screen, LED sets up by the light guide plate, the light-emitting mouth is just opposite to the light guide plate; a backlight FPC is arranged beside the LED, the backlight FPC is arranged on one side of the polaroid, and one end of the backlight FPC is attached to the light guide plate and fixedly connected with the light guide plate. The polarizer is structurally arranged, so that the visual angle of the LCD display screen can be effectively enlarged; adopt diffusion barrier and light guide plate in addition, the existence of light guide plate makes can effectively send LED light and turns into the area source of required direction, and the diffusion barrier can effectively diffuse and make full use of light to make the light that acts on the LCD display screen increase, thereby ensure that the not enough condition of light can not appear in the time of increase visual angle.

Description

Display screen capable of enlarging visual angle

Technical Field

The utility model relates to a display screen field especially relates to a enlarge visual angle's display screen.

Background

The display screen is a flat panel display, is made up of the module panel that is small one by one, the equipment that is used for showing various information such as characters, image, video, record video signal, along with the rapid development of science and technology, the quick transmission of information, LED display screen has been installed on more and more squares, has brought the convenience for people of leisure, and the demand of display screen is also growing day by day.

When the display screen plays pictures, generally, the picture information acquired by the front side of the display screen is the best, the larger the angle deviated from the center of the display screen is, the more incomplete the acquired picture information is, but the size of the display screen is fixed, so how to enlarge the playing angle of the display screen, thereby obtaining a larger view field range is of great importance.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists among the above-mentioned technique, the utility model provides an enlarge display screen of visual angle is through being provided with the polaroid to can effectively realize carrying out the expansion of angle to the picture of LCD display screen.

In order to achieve the purpose, the utility model discloses a display screen for expanding the visual angle, the display screen has a multilayer structure and comprises an LCD display screen, a polaroid, an LED and a light guide plate, the polaroid comprises an upper polaroid and a lower polaroid, the upper polaroid and the lower polaroid are respectively arranged at the upper side and the lower side of the LCD display screen, the LCD display screen is clamped and wrapped, the LED is arranged beside the light guide plate, and a light-emitting port is opposite to the light guide plate; a backlight FPC is arranged beside the LED, the backlight FPC is arranged on one side of the polaroid, and one end of the backlight FPC is attached to the light guide plate and fixedly connected with the light guide plate.

Preferably, the LCD display screen is composed of a first LCD layer and a second LCD layer, the first LCD layer is fixedly placed on the second LCD layer and connected with the second LCD layer to form an integrated structure, and the size diameter of the first LCD layer is smaller than that of the second LCD layer.

Preferably, the area, larger than the first LCD layer, of the second LCD layer is provided with a module FPC and an LCD driver IC, the module FPC is fixedly connected with the second LCD layer, and the LCD driver IC is located between the module FPC and the first LCD layer and is fixedly connected with the second LCD layer to control the LCD display screen.

Preferably, a light shielding film, a diffusion film and a brightness enhancement film are arranged between the polarizer and the light guide plate, the light shielding film, the diffusion film and the brightness enhancement film are sequentially arranged from top to bottom, the diffusion film comprises two layers, the two layers of diffusion films are arranged on the upper side and the lower side of the brightness enhancement film, and the brightness enhancement film is clamped and fixed.

Preferably, the brightness enhancement film comprises an upper brightness enhancement film and a lower brightness enhancement film, and the upper brightness enhancement film and the lower brightness enhancement film are attached together and fixed between the two diffusion films.

Preferably, a reflective film is further provided on the lower side of the light guide plate, and a reflective surface of the reflective film faces the light guide plate.

Preferably, the upper side of the display screen is further provided with a touch screen, the touch screen is connected with the display screen through foam double faced adhesive tape, the touch screen comprises a touch screen FPC, a touch driving IC and a function sheet, the function sheet is fixedly connected with the touch screen FPC, and the touch driving IC is fixed on the touch screen FPC.

Preferably, a toughened glass cover plate is arranged beside the functional sheet and completely covers the functional sheet.

Preferably, the touch driving IC and the LCD driving IC are bonded together to form an external IC terminal.

Preferably, the lower end of the reflection film is provided with a rubber frame for fixing and a protective frame for reinforcing the strength of the display screen.

The utility model has the advantages that: compared with the prior art, the utility model provides an enlarge visual angle's display screen turns into the polarized light with the natural light through utilizing the polaroid, and the visual angle to the LCD display screen under the general condition does: the upper 50 degrees, the lower 60 degrees and the left and right 70 degrees are respectively arranged, but the arrangement of the polaroid structure can effectively expand the visual angle of the LCD display screen to reach the visual angles of the upper 70 degrees, the lower 80 degrees and the left and right 80 degrees, so that the visual angle of the LCD display screen can be effectively expanded; adopt diffusion barrier and light guide plate in addition, the existence of light guide plate makes can effectively turn into the area source of the required direction of design with the pointolite that LED sent, and the diffusion barrier can effectively spread light for light source ability reuse, thereby make the light that acts on the LCD display screen increase, thereby ensure that the not enough condition of light can not appear in the time of increase visual angle.

Drawings

FIG. 1 is a diagram of the structure of the LCD display screen of the present invention;

fig. 2 is a diagram of a touch screen structure of the present invention;

fig. 3 is an overall plan view of the present invention.

The main element symbols are as follows:

1. an upper polarizer 2, an LCD screen 3, a lower polarizer 4, a shading film 5 and an upper diffusion film

6. An upper brightness enhancement film 7, a lower brightness enhancement film 8, a lower diffusion film 9, a light guide plate 10, and a reflection film

11. Rubber frame 12, protective frame 13, LCD driver IC 14, module FPC15, backlight FPC

16. LED 17, control switch 18, toughened glass cover plate 19, optical cement 20 and function piece

21. Foam double faced adhesive tape 22, touch drive IC 23, touch screen FPC.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1 to 3, the present invention discloses a display screen with an enlarged viewing angle, the display screen has a multilayer structure, including an LCD display screen 2, a polarizer, an LED16 and a light guide plate 9, the polarizer includes an upper polarizer 1 and a lower polarizer 3, the upper polarizer 1 and the lower polarizer 3 are respectively disposed on the upper and lower sides of the LCD display screen 2, the LCD display screen 2 is clamped and wrapped, the LED16 is disposed beside the light guide plate 9, and the light emitting port is opposite to the light guide plate 9; a backlight FPC15 is arranged beside the LED, a backlight FPC15 is arranged on one side of the polarizer, and one end of the backlight FPC15 is attached to the light guide plate 9 and is fixedly connected with the light guide plate 9. In the embodiment, the polarizer is arranged, so that the visual angle of the LCD display screen can be effectively enlarged, and the visual range of the LCD display screen is enlarged; in the prior art, only the viewing angles of the LCD display screen are simply utilized, generally 50 degrees above and 60 degrees below, and 70 degrees respectively at the left and right, that is, from top to bottom, the maximum viewing angle is 50 degrees, from bottom to top is 60 degrees, from left or right is 70 degrees, and once the viewing angle exceeds the angle range, the information displayed by the LCD display screen cannot be completely acquired; for the advertiser, when adopting the same quantity of display screens to carry out advertising, certainly want to obtain bigger propaganda scope, and increase the visual angle of display screen and just can effectively solve this problem, when visual angle increases, the scope that LCD display screen can radiate will be wider, based on this, this application adds the polaroid in the upper and lower both sides of LCD display screen, it adopts the IPS polaroid to be particularly worth noting to go up the polaroid, and lower polaroid adopts EWV polaroids, thereby effectively enlarge the visual angle of LCD display screen, reach 70 degrees, 80 degrees down, respectively 80 degrees visual angles about.

In order to achieve the purpose, the LCD display screen 2 consists of a first LCD layer and a second LCD layer, the first LCD layer is fixedly arranged on the second LCD layer and is connected with the second LCD layer into an integrated structure, and the size diameter of the first LCD layer is smaller than that of the second LCD layer; the region that the second LCD layer is greater than first LCD layer is equipped with module FPC14 and LCD driver IC13, and module FPC14 links to each other with the second LCD layer is fixed, and LCD driver IC13 is located between module FPC14 and the first LCD layer, links to each other with the second LCD layer is fixed, controls the LCD display screen. The module FPC is flexible circuit board, is equipped with integrated circuit on the LCD driver IC, and integrated circuit cooperation flexible circuit board to can effectively control whole LCD display screen, and the layering of LCD display screen sets up, makes better installation module FPC and LCD driver IC, has ensured the stability of connecting.

Be equipped with photomask 4, diffusion barrier and membrane that adds lustre to between polaroid and the light guide plate 9, photomask 4, diffusion barrier and the membrane from the top down sets gradually, and the diffusion barrier includes two-layerly, and two-layer diffusion barrier is installed in the upper and lower both sides of membrane that adds lustre to, and it is fixed to carry out the centre gripping to the membrane that adds lustre to, and the membrane that adds lustre to includes membrane 7 and membrane 8 that adds lustre to down, goes up membrane 7 that adds lustre to and 8 laminating settings of membrane that adds lustre to down are. In the embodiment, the light shielding film can be used for effectively shielding the LCD display screen, so that the light emitted by the LCD display screen cannot act on one side of the light guide plate when the LCD display screen displays images, and all the light can only run along one direction; the diffusion barrier divide into diffusion barrier 5 and diffusion barrier 6 down go up the diffusion barrier and carry out the centre gripping with diffusion barrier down to the membrane that adds lustre to, the light that sends from the light guide plate department just can effectively carry out the enhancement processing like this, light is at first through the first diffusion of diffusion barrier down, then the enhancement processing through the membrane that adds lustre to, the second diffusion of going through the diffusion barrier again, both sides diffusion makes light fully obtain utilizing, thereby make the light of acting on the LCD display screen can satisfy the user demand.

A reflective film 10 is further provided on the lower side of the light guide plate 9, and the reflective surface of the reflective film 10 faces the light guide plate 9. In this embodiment, at first the upside of LED16 is equipped with the FPC15 that is shaded, and the FPC cooperation control switch 17 that is shaded carries out effective control to LED, and FPC in a poor light controls LED on the one hand, and on the other hand can play the effect of sheltering from, makes the light that LED sent can only act on the light guide plate, thereby utilizes the light guide plate to convert LED's pointolite into the area source, cooperation reflectance coating, make all light can only act on the one side that is equipped with the LCD display screen.

The upper side of the display screen is also provided with a touch screen, the touch screen is connected with the display screen by adopting a foam double-sided adhesive tape 21 and comprises a touch screen FPC23, a touch drive IC22 and a function sheet 20, the function sheet 20 is fixedly connected with the touch screen FPC23, and the touch drive IC22 is fixed on the touch screen FPC 23; a toughened glass cover plate 18 is arranged beside the functional sheet 20, and the toughened glass cover plate 18 covers the functional sheet 20 completely. In this embodiment, the optical cement 19 is used to connect the glass cover plate and the functional sheet, the functional sheet is ITO glass, and a sensor is disposed inside the functional sheet, so as to sense the touch action of a finger.

After the display screen and the touch screen are connected together, the touch drive IC and the LCD drive IC are attached together to form an external IC end, so that the control is more convenient. The lower end of the reflecting film is provided with a rubber frame 11 for fixing and a protective frame 12 for reinforcing the strength of the display screen. The combination of the rubber frame and the protective frame can effectively protect other structural layers and increase the overall strength.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A display screen capable of expanding a visual angle is characterized in that the display screen is of a multilayer structure and comprises an LCD display screen, a polaroid, an LED and a light guide plate, wherein the polaroid comprises an upper polaroid and a lower polaroid, the upper polaroid and the lower polaroid are respectively arranged on the upper side and the lower side of the LCD display screen, the LCD display screen is clamped and wrapped, the LED is arranged beside the light guide plate, and a light emitting port is opposite to the light guide plate; a backlight FPC is arranged beside the LED, the backlight FPC is arranged on one side of the polaroid, and one end of the backlight FPC is attached to the light guide plate and fixedly connected with the light guide plate.

2. The display screen of claim 1, wherein the LCD display screen comprises a first LCD layer and a second LCD layer, the first LCD layer is fixedly disposed on the second LCD layer and connected with the second LCD layer to form an integrated structure, and the first LCD layer has a smaller dimension than the second LCD layer.

3. The display screen for enlarging the visual angle according to claim 2, wherein the area of the second LCD layer larger than the first LCD layer is provided with a module FPC and an LCD driver IC, the module FPC is fixedly connected with the second LCD layer, and the LCD driver IC is positioned between the module FPC and the first LCD layer and fixedly connected with the second LCD layer to control the LCD display screen.

4. The display screen of claim 1, wherein a light shielding film, a diffusion film and a brightness enhancement film are arranged between the polarizer and the light guide plate, the light shielding film, the diffusion film and the brightness enhancement film are arranged in sequence from top to bottom, the diffusion film comprises two layers, and the two layers of diffusion films are arranged on the upper side and the lower side of the brightness enhancement film to clamp and fix the brightness enhancement film.

5. The display screen of claim 4, wherein the brightness enhancement film comprises an upper brightness enhancement film and a lower brightness enhancement film, and the upper brightness enhancement film and the lower brightness enhancement film are attached together and fixed between two diffusion films.

6. The display screen of claim 1, wherein the lower side of the light guide plate is further provided with a reflective film, and the reflective surface of the reflective film faces the side of the light guide plate.

7. The display screen capable of enlarging the visual angle according to claim 1, wherein a touch screen is further arranged on the upper side of the display screen, the touch screen is connected with the display screen by adopting foam double faced adhesive tape, the touch screen comprises a touch screen FPC, a touch driving IC and a functional sheet, the functional sheet is fixedly connected with the touch screen FPC, and the touch driving IC is fixed on the touch screen FPC.

8. The display screen capable of enlarging the visual angle according to claim 7, wherein a tempered glass cover plate is further arranged beside the functional sheet, and the tempered glass cover plate completely covers the functional sheet.

9. The display screen with the enlarged visual angle of claim 7, wherein the touch driving IC and the LCD driving IC are bonded together to form an external IC terminal.

10. The display screen for enlarging the visual angle according to claim 6, wherein the lower end of the reflective film is provided with a glue frame for fixing and a protective frame for reinforcing the strength of the display screen.