CN209928174U

CN209928174U - Anti-electromagnetic interference low-temperature-resistant liquid crystal display screen

Info

Publication number: CN209928174U
Application number: CN201920604824.8U
Authority: CN
Inventors: 杨泽芳; 程俊飞; 季书林
Original assignee: Bank Of Nanjing New Mstar Technology Ltd
Current assignee: Bank Of Nanjing New Mstar Technology Ltd
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-01-10
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses an anti-electromagnetic interference's low temperature resistant liquid crystal display, including the liquid crystal display layer lower surface sets up transparent basement upper surface coating silver nanometer line film, and lay a pair of linear electrode in the transparent basement, linear electrode is located silver nanometer line film both sides limit is connected silver nanometer line film, transparent basement with the laminating of liquid crystal display layer. The utility model discloses a low temperature resistant liquid crystal display of anti-electromagnetic interference utilizes the high conductivity silver nano wire film on the transparent basement to carry out the broadband electromagnetic shield, and good optical transmittance, the neutral color of film have simultaneously guaranteed not to cause the influence to the liquid crystal display effect; the film is electrified and heated through the linear electrodes, and the excellent temperature uniformity ensures the low-temperature working effect of the liquid crystal.

Description

Anti-electromagnetic interference low-temperature-resistant liquid crystal display screen

Technical Field

The utility model relates to a liquid crystal display.

Background

With the development of the times, display screens become an indispensable part of the public life, such as televisions, mobile phones, flat panels and the like which people often watch, and the display screens exist. Liquid crystal display panels are still important in all display panels, which are usually made by adding liquid crystal material between two flat plates. The liquid crystal is a special substance state different from solid, liquid and gas states at a certain temperature, and can display patterns due to the change of the arrangement state of internal molecules under the action of an electric field. The working temperature of the liquid crystal screen is generally 0-60 ℃, and when the environmental temperature is lower than 0 ℃, the liquid crystal screen can display double images, smear and other phenomena. At present, no good solution is provided for the problem that the liquid crystal screen cannot work normally at a lower temperature; at the same time, most display screens are more or less affected by electromagnetic waves, and the snowflakes appearing on televisions are the result of the electromagnetic wave influence.

Disclosure of Invention

The purpose of the invention is as follows: to above-mentioned prior art, provide a low temperature resistant liquid crystal display of anti-electromagnetic interference for traditional liquid crystal display not only can use under low temperature environment, can also anti-electromagnetic interference.

The technical scheme is as follows: the low-temperature resistant liquid crystal display screen comprises a liquid crystal display layer, wherein a transparent substrate is arranged on the lower surface of the liquid crystal display layer, a silver nanowire film is coated on the upper surface of the transparent substrate, a pair of linear electrodes are distributed on the transparent substrate, the linear electrodes are positioned on two side edges of the silver nanowire film and connected with the silver nanowire film, and the transparent substrate is attached to the liquid crystal display layer.

Furthermore, the transparent substrate is amorphous inorganic non-metallic transparent glass, and the thickness of the transparent substrate is 0.05-4 mm.

Further, the silver nanowire film is prepared from silver nanowires with the diameter of 10-100 nm, and the square resistance range of the silver nanowire film is 5-100 ohms.

Furthermore, the thickness of the linear electrode is 0.01-0.1 mm, and the line width is 0.1-3 mm.

Has the advantages that: (1) the utility model discloses an even heating has solved the problem that the LCD screen is difficult to normal work under the extreme low temperature well. (2) The utility model discloses electromagnetic shield effect preferred has solved electromagnetic interference's problem basically. (3) The utility model discloses the optics transmissivity is very high, present neutral color, obvious colour difference can not appear.

Drawings

FIG. 1 is a schematic view of the layered structure of the present invention;

fig. 2 is a schematic view of the overall structure of the present invention.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1, the anti-electromagnetic interference low temperature resistant liquid crystal display screen comprises a liquid crystal display layer 1, a transparent substrate 4 is arranged on the lower surface of the liquid crystal display layer, a silver nanowire film 3 is coated on the upper surface of the transparent substrate 4, a pair of linear electrodes 2 are arranged on the transparent substrate 4, the linear electrodes 2 are positioned on two side edges of the silver nanowire film 3 and connected with the silver nanowire film 3, the transparent substrate 4 is attached to the liquid crystal display layer 1, and the whole structure is as shown in fig. 2.

Wherein, the transparent substrate 4 is amorphous inorganic non-metallic transparent glass with a thickness of 0.05-4 mm, and the use environment is-50-100 ℃. The silver nanowire film 3 is a transparent conductive film which is formed by coating ink prepared from silver nanowires with the diameter of 10-100 nm into a grid, and the square resistance range value of the silver nanowire film 3 is 5-100 ohms. The linear electrode 2 is one of gold, silver and copper electrodes prepared by one or more of evaporation, sputtering and conductive adhesive methods, and is ultrathin, the thickness of the linear electrode is 0.01-0.1 mm, and the line width is 0.1-3 mm. The linear electrode 2 is attached to the silver nanowire film 3, and plays a role in collecting current on two sides of the silver nanowire film 3. When one of the silver nanowires is positioned at the left side of the silver nanowire film 3, the other silver nanowire is positioned at the right side of the silver nanowire film 3, and the positions of the two silver nanowire films are at the edge of the silver nanowire film 3.

The utility model discloses a low temperature resistant liquid crystal display of anti-electromagnetic interference utilizes the high conductivity silver nano wire film on the transparent basement to carry out the broadband electromagnetic shield, and good optical transmittance, the neutral color of film have simultaneously guaranteed not to cause the influence to the liquid crystal display effect; the film is electrified and heated through the linear electrodes, and the excellent temperature uniformity ensures the low-temperature working effect of the liquid crystal. Through the test surface, the whole optical transmittance can reach more than 90 percent, and no obvious transmission chromatic aberration exists; and the heating is uniform, and the temperature deviation of the whole surface is less than 5 ℃. The surface is smooth and flat, no scratch damage exists, the number of impurity points is more than two and the diameter of the impurity points is more than 15 micrometers, and the broadband electromagnetic shielding effect is achieved.

The utility model discloses the optics of structure sees through the experimental result as shown in the following table:

brightness of backlight	Brightness after passing through glass	Light transmittance
			129	117	90％

The utility model discloses the colour difference experimental result of structure is as follows:

color coordinate of backlight	Coordinate after passing through glass	Offset of
			333,372	333,374	000,002

The utility model discloses the electromagnetic shield experimental result of structure is as shown in the following table:

frequency band	14K	150M	1G
				Screen effect	8DB	66DB	47DB

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides an anti-electromagnetic interference's low temperature resistant liquid crystal display, its characterized in that: the liquid crystal display panel comprises a liquid crystal display layer (1), wherein a transparent substrate (4) is arranged on the lower surface of the liquid crystal display layer, a silver nanowire film (3) is coated on the upper surface of the transparent substrate (4), a pair of linear electrodes (2) are distributed on the transparent substrate (4), the linear electrodes (2) are positioned on two side edges of the silver nanowire film (3) and are connected with the silver nanowire film (3), and the transparent substrate (4) is attached to the liquid crystal display layer (1).

2. The LCD screen with low temperature resistance and electromagnetic interference resistance of claim 1, wherein the transparent substrate (4) is amorphous inorganic non-metallic transparent glass with a thickness of 0.05 ~ 4 mm.

3. The liquid crystal display screen with electromagnetic interference resistance and low temperature resistance of claim 1, wherein the silver nanowire film (3) is prepared by silver nanowires with the diameter of 10 ~ 100nm, and the sheet resistance range value of the silver nanowire film (3) is 5 ~ 100 ohms.

4. The LCD screen with low temperature resistance and anti-electromagnetic interference of claim 1, wherein the thickness of the linear electrodes (2) is 0.01 ~ 0.1.1 mm, and the line width is 0.1 ~ 3 mm.