阅读说明：本技术 一种车载显示屏静电防护结构 (On-vehicle display screen electrostatic protection structure ) 是由 袁伟凌 游晓鹤 于 2021-07-12 设计创作，主要内容包括：本发明公开了一种车载显示屏静电防护结构,涉及车载显示屏静电防护领域,包括LCD显示模组,所述LCD显示模组上方设置有显示屏上盖、下方设置有显示屏后盖,且所述显示屏上盖与LCD显示模组之间通过光学胶粘接,所述显示屏上盖与光学胶之间设置有金属导电层和导电油墨层,所述显示屏后盖环绕LCD显示模组底部和侧面设置,所述LCD显示模组与显示屏后盖的边缘间隙之间还设置有绝缘层；所述LCD显示模组包括光源、导光板、反射片、光学膜片、线路板、芯片；所述金属导电层为在显示屏上盖底部边缘环绕设置一圈金属线。通过设置金属导电层和导电油墨层以及绝缘层,提高车载显示屏的静电保护能力,解决静电导致显示屏会有闪屏花屏的问题。(The invention discloses a vehicle-mounted display screen electrostatic protection structure, which relates to the field of vehicle-mounted display screen electrostatic protection and comprises an LCD display module, wherein a display screen upper cover is arranged above the LCD display module, a display screen rear cover is arranged below the LCD display module, the display screen upper cover and the LCD display module are bonded through optical cement, a metal conducting layer and a conducting ink layer are arranged between the display screen upper cover and the optical cement, the display screen rear cover is arranged around the bottom and the side surface of the LCD display module, and an insulating layer is also arranged between the LCD display module and the edge gap of the display screen rear cover; the LCD display module comprises a light source, a light guide plate, a reflector plate, an optical membrane, a circuit board and a chip; the metal conducting layer is formed by arranging a circle of metal wires around the edge of the bottom of the upper cover of the display screen. Through setting up metal conducting layer and conductive ink layer and insulating layer, improve on-vehicle display screen's electrostatic protection ability, solve static and lead to the display screen to have the problem of splash screen.)

1. The utility model provides an on-vehicle display screen electrostatic protection structure, includes the LCD display module assembly, its characterized in that, LCD display module assembly top is provided with display screen upper cover, the below is provided with lid behind the display screen, just bond through the optical cement between display screen upper cover and the LCD display module assembly, be provided with metal conducting layer and conductive ink layer between display screen upper cover and the optical cement, the lid encircles LCD display module assembly bottom and side setting behind the display screen, still be provided with the insulating layer between the marginal clearance of LCD display module assembly and display screen rear cover.

2. The on-vehicle display screen electrostatic protection structure of claim 1, wherein the LCD display module comprises a light source, a light guide plate, a reflector plate, an optical film, a circuit board, and a chip.

3. The electrostatic protection structure for the vehicle-mounted display screen according to claim 1, wherein the metal conductive layer is a metal wire which is arranged around the bottom edge of the upper cover of the display screen.

4. The electrostatic protection structure for vehicular display screen according to claim 3, wherein the impedance of the metal wire is less than 10 Ω/□.

5. The electrostatic protection structure for the vehicle-mounted display screen according to claim 1, wherein the conductive ink layer is two layers of conductive ink.

6. The electrostatic protection structure for vehicle-mounted display screen according to claim 5, wherein the thickness of each layer of conductive ink film is greater than 5 um.

7. The electrostatic protection structure for vehicle-mounted display screen according to claim 6, wherein the conductive ink is less than 100 Ω/□.

8. The electrostatic protection structure for the vehicle-mounted display screen according to claim 1, wherein the insulating layer is insulating glue.

Technical Field

The invention relates to the field of vehicle-mounted display screens, in particular to a static protection structure of a vehicle-mounted display screen.

Background

Along with the on-vehicle display screen requires more and more to the display effect, full laminating has become mainstream technique, and narrow frame product also more and more receives customer's favor simultaneously. In the traditional vehicle-mounted full-lamination technology, a display module (LCD display module) is laminated with a touch screen, wherein the LCD display module contains an upper metal frame or conductive cloth, and the chip of the flexible circuit board and the flexible circuit board are subjected to electrostatic protection.

However, with the optimization of the process and the cost, the use of the flexible circuit board and the touch attachment is a trend, but the design results in that the chip and the circuit board of the flexible circuit board are protected by less metal frames or conductive cloth, and for narrow-frame products, because the distance between the circuit board of the display screen and the gap between the chip and the edge of the product is limited, the narrow-frame products are more easily interfered by static electricity. When static electricity testing is carried out from the edge of the display screen, static electricity can jump to a chip of the flexible circuit board or a circuit board, and the problem that the display screen flickers and is not easy to be displayed is caused.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a vehicle-mounted display screen electrostatic protection structure which has the characteristic of solving the problem that screen flickering and screen blurring of a display screen caused by electrostatic leaping to a chip or a circuit board.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an on-vehicle display screen electrostatic protection structure, includes the LCD display module assembly, LCD display module assembly top is provided with display screen upper cover, the below is provided with lid behind the display screen, just bond through the optical cement between display screen upper cover and the LCD display module assembly, be provided with metal conducting layer and conductive ink layer between display screen upper cover and the optical cement, the lid encircles LCD display module assembly bottom and side setting behind the display screen, still be provided with the insulating layer between the marginal clearance of LCD display module assembly and display screen back cover.

By adopting the technical scheme, the electrostatic protection capability of the vehicle-mounted display screen can be improved, and the problem that the screen flickers and is scratched due to the fact that static electricity leaps to a chip or a circuit board is solved.

Furthermore, the LCD display module comprises a light source, a light guide plate, a reflector plate, an optical film, a circuit board and a chip.

Furthermore, the metal conducting layer is formed by arranging a circle of metal wires around the edge of the bottom of the upper cover of the display screen.

Through adopting above-mentioned technical scheme, through being equipped with the metal wire, can static fall on the static of display screen and lead out to the outside through the metal wire.

Further, the impedance of the metal wire is less than 10 omega/□.

Further, the conductive ink layer is two layers of conductive ink.

By adopting the technical scheme, the economy and the electrostatic protection capability of the two layers of conductive ink are optimal.

Further, the thickness of each layer of conductive ink film is more than 5 um. .

By adopting the technical scheme, the conductive ink has the electrostatic protection capability of being larger than 5um and is qualified.

Further, the conductive ink is < 100 Ω/□.

Further, the insulating layer is insulating glue.

Through adopting above-mentioned technical scheme, the insulating cement can prevent that static from spilling from the clearance between LCD display module assembly edge and the display screen back lid, leads to the problem of display screen splash screen.

In conclusion, the invention has the following beneficial effects:

1. through setting up metal conducting layer and conductive ink layer and insulating layer, improve on-vehicle display screen's electrostatic protection ability, solve static and lead to the display screen to have the problem of splash screen.

2. The edge of the bottom of the upper cover of the display screen is provided with a circle of metal wires in a surrounding way, so that static electricity falling on the display screen can be led out to the outside through the metal wires.

3. The conductive ink layer is two layers of conductive ink, and the economy and the electrostatic protection capability are optimal.

4. The conductive ink has a thickness of more than 5um and qualified electrostatic protection capability.

5. The insulating cement can prevent static from leaking from the gap between the edge of the LCD display module and the rear cover of the display screen, so that the problem of screen flashing of the display screen is caused.

Drawings

FIG. 1 is a schematic structural diagram of an electrostatic protection structure of a vehicle-mounted display screen according to the present invention;

reference numerals: 1. LCD display module assembly, 2, display screen upper cover, 3, display screen back lid, 4, optical cement, 5, metal conducting layer, 6, conductive ink layer, 7, insulating layer.

Detailed Description

Example (b):

the present invention is described in further detail below with reference to fig. 1.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides an on-vehicle display screen electrostatic protection structure, including LCD display module assembly 1, 1 top of LCD display module assembly is provided with display screen upper cover 2, the below is provided with lid 3 behind the display screen, and bond through optical cement 4 between display screen upper cover 2 and the LCD display module assembly 1, be provided with metal conducting layer 5 and conductive ink layer 6 between display screen upper cover 2 and the optical cement 4, lid 3 encircles 1 bottom of LCD display module assembly and side setting behind the display screen, still be provided with insulating layer 7 between the marginal gap of lid 3 behind LCD display module assembly 1 and the display screen.

In above-mentioned technical scheme, through setting up metal conducting layer 5 and conductive ink layer 6 and insulating layer 7, improve on-vehicle display screen's electrostatic protection ability, solve static and lead to the display screen to have the problem of splash screen.

As a preferred embodiment of the present invention, the LCD display module 1 includes a light source, a light guide plate, a reflective sheet, an optical film, a circuit board, and a chip.

As a preferred embodiment of the present invention, the metal conductive layer 5 is a metal wire that is disposed around the bottom edge of the display screen top cover 2.

As a preferred embodiment of the present invention, the resistance of the metal line is < 10 Ω/□.

In a preferred embodiment of the present invention, the conductive ink layer 6 is two layers of conductive ink.

In a preferred embodiment of the present invention, the thickness of each conductive ink layer is greater than 5 um.

As a preferred embodiment of the present invention, the conductive ink is < 100 Ω/□.

In a preferred embodiment of the present invention, the insulating layer 7 is an insulating paste.

The design for improving the ESD capacity of the full-lamination display screen is adopted, the design comprises the step of manufacturing a conducting layer on the edge of the full-lamination display screen, and when static electricity is discharged on the edge of the display screen, the conducting layer can be quickly absorbed and released, so that the static interference is avoided, and the abnormality of the display screen can be prevented.

The conductive ink can absorb and release external static electricity, and can also play a role in protecting the static electricity of a display screen. Printing ink of the upper cover 2 of the common display screen is printed between 1-5 layers, wherein one layer of printing ink or all the printing ink can be conductive printing ink; tests prove that the effect of the two layers of conductive ink is the best.

Through the technical scheme, the invention has the advantage of improving the better antistatic performance of the display screen from the original ESD +/-6 KV resistance level to +/-15 KV resistance level.

In summary, the metal wire is arranged around the bottom edge of the upper cover of the display screen, so that static electricity falling on the display screen can be led out to the outside through the metal wire; the conductive ink layer is two layers of conductive ink, so that the economy and the electrostatic protection capability are optimal; the electrostatic protection capability of the conductive ink is qualified when the thickness of the conductive ink is more than 5 um; the insulating cement can prevent static from leaking from the gap between the edge of the LCD display module and the rear cover of the display screen, so that the problem of screen flashing of the display screen is caused.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.