CN111627353A

CN111627353A - Segment code LCD instrument structure with high antistatic performance

Info

Publication number: CN111627353A
Application number: CN202010361607.8A
Authority: CN
Inventors: 杨守卫
Original assignee: Huizhou Desay SV Automotive Co Ltd
Current assignee: Huizhou Desay SV Automotive Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-09-04

Abstract

The invention relates to the technical field of LCD instruments, in particular to a segment code LCD instrument structure with high antistatic performance, which comprises a glass cover plate, a segment code LCD screen, a front frame component, a PCBA and a rear cover which are sequentially stacked and assembled; the glass cover plate and the segment code LCD screen are completely laminated through optical cement; the segment code LCD screen consists of upper glass, a middle liquid crystal layer and lower glass; the surface of the upper glass of the LCD screen, which faces the glass cover plate, is plated with an ITO (indium tin oxide) electrostatic shielding layer, and the surface of the lower glass of the LCD screen, which faces the upper glass, is provided with a grounding wire communicated with the electrostatic shielding layer; through the step face point silver colloid of last glass and lower glass, switch on electrostatic shielding layer ITO and earth connection, the earth connection pass through the FPC winding displacement with PCBA intercommunication to ground connection. The invention aims to provide a segment code LCD instrument structure with high antistatic performance, and the technical scheme provided by the invention solves the problems that the conventional segment code LCD instrument cannot realize high-definition display and antistatic performance.

Description

Segment code LCD instrument structure with high antistatic performance

Technical Field

The invention relates to the technical field of LCD instruments, in particular to a segment code LCD instrument structure with high antistatic performance.

Technical Field

The traditional vehicle-mounted large-size segment code LCD instrument in the current industry can not meet the requirements of customers on integral black appearance effect and high-definition information display of instrument display screens, because the LCD is directly exposed or a glass cover plate is pasted on the surface frame of the LCD; the antistatic performance is general, and the following standards are difficult to achieve: contact discharge ± 8KV, CLASS B; air Discharge ± 15KV, CLASS B.

Disclosure of Invention

The invention aims to provide a segment code LCD instrument structure with high antistatic performance, and the technical scheme provided by the invention solves the problems that the conventional segment code LCD instrument cannot realize high-definition display and antistatic performance.

In order to solve the technical problem, the invention provides a segment code LCD instrument structure with high antistatic performance, which comprises a glass cover plate, a segment code LCD screen, a front frame assembly, a PCBA and a rear cover which are sequentially stacked and assembled; the glass cover plate and the segment code LCD screen are completely laminated through optical cement; the glass cover plate and the segment code LCD screen are completely laminated through optical cement; the segment code LCD screen consists of upper glass, a middle liquid crystal layer and lower glass; an electrostatic shielding layer is plated on the surface of the upper glass facing the glass cover plate, and a grounding wire communicated with the electrostatic shielding layer is arranged on the lower glass; the grounding wire is communicated with the PCBA through an FPC flat cable and is grounded.

Preferably, the electrostatic shielding layer and the grounding wire are conducted at the step surface positions of the upper glass and the lower glass through point silver paste or pasted with conductive cloth.

Preferably, the middle position of the glass cover plate is a light-transmitting window area, and the peripheral positions of the glass cover plate are light-shading ink areas.

Preferably, the electrostatic shielding layer is an ITO electrostatic shielding layer.

Preferably, the electrostatic shielding standard of the segment code LCD meter is as follows: contact discharge ± 8KV, CLASSA; air Discharge ± 20KV, CLASS B.

According to the technical scheme provided by the invention, the glass cover plate and the segment code LCD screen are completely laminated by adopting the optical cement, so that the reflectivity is reduced, and the integral black appearance effect and high-definition information display of the instrument display screen are realized; the upper surface of the upper glass of the segment code LCD screen is plated with an ITO electrostatic shielding layer, and is grounded with the PCBA through the signal wire and the grounding wire FPC (flexible printed circuit board) flat cable of the LCD, so that the electrostatic shielding and releasing capacity is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present invention or the prior art will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

FIG. 1 is an exploded view of a segment code LCD instrument according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The traditional vehicle-mounted large-size segment code LCD instrument in the current industry can not meet the requirements of customers on integral black appearance effect and high-definition information display of instrument display screens; the antistatic property is general.

Referring to fig. 1, to solve the above technical problem, the present embodiment provides a segment LCD instrument structure with high antistatic performance, which includes a glass cover plate 10, a segment LCD panel 20, a front frame assembly 30, a PCBA40, and a rear cover 50, which are sequentially stacked and assembled.

To traditional on-vehicle jumbo size section sign indicating number LCD instrument in the industry at present, or LCD directly exposes, or paste glass apron 10 at LCD surface frame, can not satisfy the problem of customer to the integrative black outward appearance effect of instrument display screen and the high definition information display demand, the section sign indicating number LCD instrument that this embodiment provided, through optical cement 70 full laminating between glass apron 10 and section sign indicating number LCD screen 20, reflectivity is reduced, realize the integrative black outward appearance effect of instrument display screen and high definition information display.

To traditional on-vehicle jumbo size section sign indicating number LCD instrument in the industry at present, LCD is direct naked, or pastes glass apron 10 at LCD surface frame, and antistatic properties is general, is difficult to reach antistatic standard, and the section sign indicating number LCD instrument that this embodiment provided, section sign indicating number LCD screen 20 comprises last glass, middle liquid crystal layer and lower glass. An electrostatic shielding layer 60 is plated on the surface of the upper glass facing the glass cover plate, and a grounding wire 21 communicated with the electrostatic shielding layer 60 is arranged on the lower glass; the ground line 21 communicates with the PCBA40 through the FPC cable 22 and is grounded.

In the connection structure, the electrostatic shielding layer 60 and the ground wire 21 are conducted by silver paste or conductive cloth at the step surface of the upper and lower glass. The glass cover plate 10 has a transparent window area 11 in the middle and a light-shielding ink area 12 in the periphery.

Preferably, but not limited to, the electrostatic shielding layer 60 is an ITO electrostatic shielding layer.

The technical scheme provided by the embodiment not only reduces the reflectivity, but also realizes the integral black appearance effect and high-definition information display of the instrument display screen; the electrostatic shielding and releasing capacity is also improved, and the following standards can be met: contact discharge ± 8KV, CLASS a; air Discharge ± 20KV, CLASS B.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. The utility model provides a segment code LCD instrument structure of high antistatic properties which characterized in that: the glass cover plate, the segment code LCD screen, the front frame component, the PCBA and the rear cover are sequentially stacked and assembled; the glass cover plate and the segment code LCD screen are completely laminated through optical cement; the segment code LCD screen consists of upper glass, a middle liquid crystal layer and lower glass; an electrostatic shielding layer is plated on the surface of the upper glass facing the glass cover plate, and a grounding wire communicated with the electrostatic shielding layer is arranged on the lower glass; the grounding wire is communicated with the PCBA through an FPC flat cable and is grounded.

2. The segment code LCD meter structure of claim 1, wherein: and conducting the electrostatic shielding layer and the grounding wire at the step surface positions of the upper glass and the lower glass through point silver paste or sticking conductive cloth.

3. The segment code LCD meter structure of claim 2, wherein: the middle position of the glass cover plate is a light-transmitting window area, and the peripheral positions of the glass cover plate are light-shading ink areas.

4. The segment code LCD meter of claim 3, wherein: the electrostatic shielding layer is an ITO electrostatic shielding layer.

5. The segment code LCD meter of claim 4, wherein: the electrostatic shielding standard of the segment code LCD instrument is as follows: contact discharge ± 8KV, CLASS a; air Discharge ± 20KV, CLASS B.