CN203500956U

CN203500956U - Self-anti-static vehicle-mounted LED (Light Emitting Diode) backlight source

Info

Publication number: CN203500956U
Application number: CN201320439599.XU
Authority: CN
Inventors: 杨杰
Original assignee: WAICHI OPTO TECHNOLOGY (SHENZHEN) Ltd
Current assignee: WAICHI OPTO TECHNOLOGY (SHENZHEN) Ltd
Priority date: 2013-07-23
Filing date: 2013-07-23
Publication date: 2014-03-26
Anticipated expiration: 2023-07-23

Abstract

The utility model relates to a self-anti-static vehicle-mounted LED (Light Emitting Diode) backlight source. Static prevention of an existing backlight source product is realized by additionally arranging an electronic element or utilizing an external device, and the reliability is bad. The self-anti-static vehicle-mounted LED backlight source is formed by a shock-absorption double-faced adhesive tape, a middle iron frame, a lower iron frame, a heat-conduction double-faced adhesive tape, an LED light source, an FPC (Flexible Printed Circuit) board, a plastic retaining wall and the like, wherein the middle iron frame is connected with the lower iron frame in a fastening way, and the surface of the middle iron frame is provided with the shock-absorption adhesive tape; the LED light source is arranged on the FPC board, the FPC board is fixedly arranged on the inner side surface of the lower iron frame by the heat-conduction double-faced adhesive tape, and the FPC board is externally connected with a power supply; a plastic shell is fixedly arranged on the lower iron frame, and the outer side of the plastic shell is provided with the plastic retaining wall; a reflecting film is arranged in an inner groove of the plastic shell; a light guide panel is fixedly arranged on the inner groove of the plastic shell; a head aluminum film is arranged at a light inlet end of the light guide panel; an inner groove of the light guide panel is sequentially provided with a diffusion film B, a diffusion film A and a bright enhancement film from bottom to top. The self-anti-static vehicle-mounted LED backlight source disclosed by the utility model has the advantages that self-anti-static performance can be realized, the badness of an LCD (Liquid Crystal Display) circuit can be prevented, the brightness can be increased, the service life can be prolonged, and the vibration resistance and the durability are achieved.

Description

A kind of vehicle LED backlight from antistatic

Technical field

The utility model relates to electron-optical field, is specifically related to a kind of vehicle LED backlight from antistatic.

Background technology

For a long time, backlight product is all by additional electronic component or utilizes external equipment to reach the effect of pre-antistatic, but along with vehicle-mounted product develops rapidly and the raising of the market demand, the requirement of unfailing performance aspect is also become to more and more higher, electrostatic capacity as above in anti-8KV, experiment finds that different structure product all can be subject in various degree the impact of static in actual operation, cause product optical property to change and have the potential risk that punctures LED, how to make full use of the design advantage on product structure, product can and be avoided and LCD lateral edges line short etc. from antistatic, this will be an important topic.

Utility model content

The purpose of this utility model be to provide a kind of collection from antistatic, anti-short circuit, improve brightness, the vehicle-mounted backlight in life-span, add after the LCD of chase and client in single-piece simultaneously, can use whole LCD module from electrostatic discharge.

The utility model by damping double faced adhesive tape, in chase, bright enhancement film, diffusion barrier A, diffusion barrier B, head aluminium film, LGP, reflectance coating, lower chase, bond plies, LED light source, FPC wiring board and plastic cement barricade form.Middle chase and lower chase are interlockingly connected, and the surface of middle chase is provided with damping double faced adhesive tape for fixed L CD; LED light source is arranged on T-shaped FPC wiring board, and T-shaped FPC wiring board is fixed on by bond plies on the medial surface of lower chase, FPC wiring board external power supply; Plastic cement glue shell is fixed on lower chase, and its arranged outside has plastic cement barricade; Reflectance coating is arranged in plastic cement glue shell inside groove; LGP is fixed on plastic cement glue shell inside groove; Head aluminium film is arranged at the light inlet of LGP; In the inside groove of LGP, set gradually diffusion barrier B, diffusion barrier A and bright enhancement film from bottom to top.

The utility model is applicable to V.A. district scope at circle or the polygonized structure backlight product of 3-15 inch.

In the utility model uniqueness, lower iron frame structure fastens to coordinate and can make static pass through the conductive characteristic of chase and the ground of module is connected, and plays the function (the above electrostatic capacity of at least anti-8KV) from antistatic.

The utility model has the advantage of can be from antistatic (more than 8KV), anti-short out, there is the good thermal diffusivity of large area simultaneously, reach improve vehicle-mounted backlight brightness, increase the service life and sound construction is durable, resistance to shakes, add after the LCD of chase and client in single-piece simultaneously, can use whole LCD module from electrostatic discharge, there is good economic benefit and social benefit, be beneficial to popularization.

accompanying drawing explanation

Fig. 1 is overall structure schematic diagram of the present utility model;

Fig. 2 is each parts decomposing state schematic diagram of the present utility model.

In figure, 1 is damping double faced adhesive tape, the 2nd, and middle chase, the 3rd, bright enhancement film, the 4th, diffusion barrier A, the 5th, diffusion barrier B, the 6th, head aluminium film, the 7th, LGP, the 8th, reflectance coating, the 9th, plastic cement glue shell, the 10th, lower chase, the 11st, bond plies, the 12nd, LED light source, the 13rd, FPC wiring board, the 14th, plastic cement barricade.

the specific embodiment

Below in conjunction with accompanying drawing, with most preferred embodiment, the utility model is described in further details:

The utility model by damping double faced adhesive tape (1), in chase (2), bright enhancement film (3), diffusion barrier A(4), diffusion barrier B(5), head aluminium film (6), LGP (7), reflectance coating (8), plastic cement glue shell (9), lower chase (10), bond plies (11), LED light source (12), FPC wiring board (13) and plastic cement barricade (14) form.Middle chase (2) is interlockingly connected with lower chase (10), and the surface of middle chase (2) is provided with damping double faced adhesive tape (1) for fixed L CD; It is upper that LED light source (12) is arranged on T-shaped FPC wiring board (13), and T-shaped FPC wiring board (13) is fixed on the medial surface of lower chase (10) by bond plies (11), FPC wiring board (13) external power supply; It is upper that plastic cement glue shell (9) is fixed on lower chase (10), and its arranged outside has plastic cement barricade (14); Reflectance coating (8) is arranged in plastic cement glue shell (9) inside groove; LGP (7) is fixed on plastic cement glue shell (9) inside groove; Head aluminium film (6) is arranged at the light inlet of LGP (7); In the inside groove of LGP (7), set gradually diffusion barrier B(5 from bottom to top), diffusion barrier A(4) and bright enhancement film (3).

The utility model is applicable to V.A. district scope at the square of 3-15 inch or polygonized structure backlight product.

In the utility model uniqueness, lower iron frame structure fastens to coordinate and can make static pass through the conductive characteristic of chase and the ground of module is connected, and plays the function from antistatic.

Claims

1. the vehicle LED backlight from antistatic, it is characterized in that it by damping double faced adhesive tape (1), in chase (2), bright enhancement film (3), diffusion barrier A(4), diffusion barrier B(5), head aluminium film (6), LGP (7), reflectance coating (8), plastic cement glue shell (9), lower chase (10), bond plies (11), LED light source (12), FPC wiring board (13) and plastic cement barricade (14) form, middle chase (2) is interlockingly connected with lower chase (10), and the surface of middle chase (2) is provided with damping double faced adhesive tape (1) for fixed L CD; It is upper that LED light source (12) is arranged on T-shaped FPC wiring board (13), and T-shaped FPC wiring board (13) is fixed on the medial surface of lower chase (10) by bond plies (11), FPC wiring board (13) external power supply; It is upper that plastic cement glue shell (9) is fixed on lower chase (10), and its arranged outside has plastic cement barricade (14); Reflectance coating (8) is arranged in plastic cement glue shell (9) inside groove; LGP (7) is fixed on plastic cement glue shell (9) inside groove; Head aluminium film (6) is arranged at the light inlet of LGP (7); In the inside groove of LGP (7), set gradually diffusion barrier B(5 from bottom to top), diffusion barrier A(4) and bright enhancement film (3).

2. a kind of vehicle LED backlight from antistatic as claimed in claim 1, is characterized in that described middle chase (2) and lower chase are circle or polygon.