CN211403021U

CN211403021U - Newton's ring-proof optical combination of display

Info

Publication number: CN211403021U
Application number: CN202020259358.7U
Authority: CN
Inventors: 滕丽华; 潘书山; 高琼
Original assignee: Nanjing Xinweifeng Optoelectronics Technology Co ltd
Current assignee: Nanjing Xinweifeng Optoelectronics Technology Co ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-09-01
Anticipated expiration: 2030-03-05

Abstract

The utility model particularly relates to an optical combination of a display for preventing Newton's rings, which comprises an optical film group; the upper surface of the optical film group is covered with frosted glass; the lower surface of the optical film group is covered with a light guide plate or a diffusion plate; the frosted glass and the edge of the light guide plate or the diffusion plate are sealed between the frosted glass and the light guide plate or the diffusion plate by using an adhesive tape, and a closed cavity is formed. The frosted glass is semitransparent glass with the upper surface processed into rough and uneven by adopting sand blasting, manual grinding or chemical method processing. The utility model provides an optical combination adopts sandblast, manual grinding or chemical method to handle etc. with frosted glass's upper surface, handles into rough unevenness's translucent glass. After the light reflected by the lower surface of the liquid crystal display is reflected to the upper surface of the frosted glass, because the surface of the frosted glass is not a smooth plane, the light generates diffuse reflection, the light is emitted in all directions, the mirror reflection is damaged, and Newton's rings cannot be formed.

Description

Newton's ring-proof optical combination of display

Technical Field

The present invention relates to an optical assembly, and more particularly to an optical assembly of a display for preventing newton's rings.

Background

The LCD comprises a light source, a light guide plate (or a diffusion plate), a reflection sheet, an optical film group and a liquid crystal screen. Because the use of the optical film has higher requirements on the environment, when the optical film is used in an environment with more dust, the optical film can be scratched and abraded after dust, particles and other dirt enter the optical film group, and the display quality is influenced. The optical film group is sealed in the cavity (the cavity is formed by sealing the light guide plate and the glass) to form an optical combination, so that the optical film is prevented from being scratched and abraded after dirt such as dust and particles enters the optical film, and the display quality of the display in an environment with more dust is improved. However, as the foam is used for buffering and damping the periphery between the liquid crystal screen and the optical combination, a gap exists between the liquid crystal screen and the glass, and when the lower surface of the liquid crystal screen is bent and deformed due to gravity or external pressure, the light on the upper surface of the glass of the optical combination interferes with the light on the lower surface of the liquid crystal screen to form a colorful Newton ring.

The prior art application number is: 201821757290.4, title of the invention: the mobile phone display screen comprises a backlight layer, a display layer, a touch layer and cover plate glass which are sequentially arranged from bottom to top, wherein the backlight layer comprises an iron frame, and a reflecting film, a light guide plate, a diffusion sheet, a lower light-adding film, an upper light-adding film and a brightness enhancement sheet which are sequentially arranged in the iron frame from bottom to top; one surface of the brightness enhancement sheet, which is attached to the upper brightness enhancement film, is coated with a frosted coating. Adopt above-mentioned scheme, the utility model discloses increased the frosting effect on the brightening piece, avoided brightening piece and last brightening membrane to adsorb. But the prevention treatment to newton's ring in this scheme is through making the dull polish on the optical film to dull polish coating has used the black glue, and the dull polish coating is done at the lower surface of brightness enhancement film, avoids the absorption of brightness enhancement film and last brightness enhancement film, but can't avoid the absorption of optical combination and the above-mentioned liquid crystal display, and the dull polish effect is relatively poor simultaneously. A more effective solution is therefore needed.

Disclosure of Invention

1. The technical problem to be solved is as follows:

to the above-mentioned technique be the problem, the utility model provides a display prevent optical assembly of newton's ring is through doing the dull polish on glass to dull polish glass and light guide plate or diffusion plate edge are sealed the optical film group with the sticky tape between the two and are formed inclosed cavity and can effectually prevent the production of newton's ring, and can realize dirt-proof purpose simultaneously.

2. The technical scheme is as follows:

an anti-newton ring optical assembly for a display, comprising: comprises an optical film group; the upper surface of the optical film group is covered with frosted glass; the lower surface of the optical film group is covered with a light guide plate or a diffusion plate; the frosted glass and the edge of the light guide plate or the diffusion plate are sealed between the frosted glass and the light guide plate or the diffusion plate by using an adhesive tape, and a closed cavity is formed.

Further, the frosted glass is semitransparent glass with the upper surface processed into rough and uneven surfaces by adopting sand blasting, manual grinding or chemical method processing.

Furthermore, the optical film group sequentially comprises a polarized light brightness enhancement film, two prism films and a diffusion film from top to bottom.

Furthermore, the optical film group comprises a diffusion film, two prism films and a diffusion film from top to bottom in sequence.

Further, the thickness of the adhesive tape is larger than the total thickness of the optical film group.

3. Has the advantages that:

(1) the utility model provides an optical combination adopts sandblast, manual grinding or chemical method to handle etc. with frosted glass's upper surface, handles into rough unevenness's translucent glass. After the light reflected by the lower surface of the liquid crystal display is reflected to the upper surface of the frosted glass, because the surface of the frosted glass is not a smooth plane, the light generates diffuse reflection, the light is emitted in all directions, the mirror reflection is damaged, and Newton's rings cannot be formed.

(2) The utility model discloses with dull polish glass and light guide plate or diffusion flange edge with the sticky tape with the optical film group seal between the two and form inclosed cavity, can realize dirt-proof purpose simultaneously.

Drawings

Fig. 1 is a structural diagram of the present invention.

Detailed Description

As shown in fig. 1, an optical combination of anti-newton ring for display device is characterized in that: comprises an optical film group 2; the upper surface of the optical film group is covered with frosted glass 3; the lower surface of the optical film group is covered with a light guide plate or a diffusion plate 1; the frosted glass and the edge of the light guide plate or the diffusion plate are sealed between the frosted glass and the light guide plate or the diffusion plate by using an adhesive tape 4 to form a closed cavity.

The specific embodiment is as follows: as shown in figure 1: the utility model provides an optical combination adopts sandblast, manual grinding or chemical method to handle etc. with frosted glass's upper surface, handles into rough unevenness's translucent glass. After the light reflected by the lower surface of the liquid crystal display is reflected to the upper surface of the frosted glass, because the surface of the frosted glass is not a smooth plane, the light generates diffuse reflection, the light is emitted in all directions, the mirror reflection is damaged, and Newton's rings cannot be formed.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. An anti-newton ring optical assembly for a display, comprising: comprises an optical film group; the upper surface of the optical film group is covered with frosted glass; the lower surface of the optical film group is covered with a light guide plate or a diffusion plate; the frosted glass and the edge of the light guide plate or the diffusion plate are sealed between the frosted glass and the light guide plate or the diffusion plate by using an adhesive tape, and a closed cavity is formed.

2. The anti-newton ring optical assembly of claim 1, wherein: the frosted glass is semitransparent glass with the upper surface processed into rough and uneven by adopting sand blasting, manual grinding or chemical method processing.

3. The anti-newton ring optical assembly of claim 1, wherein: the optical film group comprises a polarized light brightness enhancement film, two prism films and a diffusion film from top to bottom in sequence.

4. The anti-newton ring optical assembly of claim 1, wherein: the optical film group comprises a diffusion film, two prism films and a diffusion film from top to bottom in sequence.

5. The anti-newton ring optical assembly of claim 1, wherein: the thickness of the adhesive tape is larger than the total thickness of the optical film group.