CN201875555U

CN201875555U - Backlight source for navigator

Info

Publication number: CN201875555U
Application number: CN2010205584961U
Authority: CN
Inventors: 朴明求; 徐载沅; 郑载衡
Original assignee: Kumho Lcd Shenzhen Co ltd
Current assignee: Kumho Lcd Shenzhen Co ltd
Priority date: 2010-10-11
Filing date: 2010-10-11
Publication date: 2011-06-22
Anticipated expiration: 2020-10-11

Abstract

The utility model relates to the field of a backlight source, in particular to a backlight source for a navigator. The backlight source comprises a light guide plate; an LED (light-emitting diode) circuit board is arranged at one side of the light guide plate; an LED lamp is arranged on one surface of the LED circuit board; the LED circuit board is a PCB (printed circuit board); the neck of the LED lamp faces to the light guide plate; and the PCB is connected with a small FPC (flexible printed circuit board) that is used as terminal connection. In the back light source for the navigator, the PCB which is more economic and higher in hardness compared with the FPC is adopted, and the small FPC used as the terminal connection is connected with the PCB, therefore, the neck of the LED lamp on the PCB can face to the light guide plate, so that more light emitted by the LED enter the light guide plate, and furthermore, a double-sided adhesive tape is not needed, thus reducing the working procedure and improving the assembling efficiency. Therefore, the backlight source has the advantages of improving production efficiency and reducing cost.

Description

A kind of backlight of navigator

[technical field]

The utility model relates to the backlight field, specifically refers to a kind of backlight of navigator.

[background technology]

LCD (LCD) is widely used in computer, communication apparatus, television set and other various displays.The electronic product of using backlight has GPS navigation instrument, MP4, palm PC etc.Backlight need be formed module with TFT glass and use.Present general backlight, its structural design all support all parts in entire backlight source with the plastic cement frame as framework, as LGP, reflector plate, diffusion sheet, light source, glass etc.Usually the side of LGP has the circuit board in LED-backlit source, and circuit board is FPC, and double faced adhesive tape is arranged above the FPC, and the side of the LED lamp above the FPC plate is near LGP 1.Because circuit board is flexible circuit board FPC, FPC needs double faced adhesive tape to be bonded on the glue frame to be maintained fixed.The so-called Side View of the LED LED that this color screen backlight uses.

The circuit board of the backlight of above-mentioned use Side View LED has adopted the higher flexible circuit board FPC of cost, and because flexible circuit board FPC needs auxiliary stickup of double faced adhesive tape to finalize the design, so it has increased the assembly process in entire backlight source, has reduced efficiency of assembling, cost increases.

[utility model content]

The utility model purpose is to solve the above problems, and a kind of backlight of navigator of reasonable in design, dependable performance is provided.

The backlight of the utility model navigator, a side that comprises LGP, described LGP has the led circuit plate, on the one side of led circuit plate, be provided with the LED lamp, described led circuit plate is a pcb board, wherein the napex of LED lamp picks out a fritter connects usefulness as terminal FPC facing to described LGP on the described pcb board.

Preferably, the framework that fuses with LGP is provided with the groove structure of carrying backlight assembly.

Compared to existing technology, the utility model has adopted compares the pcb board that flexible circuit board FPC is more economical and have hardness, on PCB, pick out a fritter FPC again and make terminal connection usefulness, the napex that can make the LED lamp on the pcb board like this is over against LGP, and the light that LED was sent more enters LGP on the one hand; On the other hand, need not to use double faced adhesive tape, can reduce operation, improve efficiency of assembling.Therefore, the utlity model has the advantage of enhancing productivity, reduce cost.

[description of drawings]

Fig. 1 is the structural representation of the utility model one embodiment;

Fig. 2 is the utility model blast structural representation.

[specific embodiment]

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Be to be understood that concrete embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

Be applied to the small screen TFT glass modular structure decomposition chart as shown in Figure 3.The structure of this small screen from top to bottom is followed successively by: last chase 4, shading patch 5, last brightening piece 6, following brightening piece 7, diffusion sheet 8, LGP 1, reflector plate 3 and following chase 9.A side at LGP 1 is provided with pcb board 10, and LED11 and FPC (flexible circuit plate) 12 arranged on pcb board 10.

LGP 1 is the integral body that same mould reverse mould is made with framework, is provided with the groove structure of carrying backlight assembly on the framework that fuses with LGP 1.The groove structure mainly is shading patch 5, go up brightening piece 6, brightening piece 7 and the edge 101 of diffusion sheet 8 and the embedded groove of pcb board down, shading patch 5, go up brightening piece 6, brightening piece 7 phase diffusion sheets 8 are put into the edge 101 on the LGP 1 successively down.The thickness of edge 101 is preferably 1 millimeter.

On one side of the framework that fuses with LGP, be provided with the groove 100 of the pcb board 10 of carrying LED.Bound edge 300 is arranged on the limit of reflector plate 3, and bound edge 300 gets up the completely encircle of framework, and the bound edge 300 of reflector plate plays the effect of emission light and damping.Last chase 4 gets up from top with the assembly inclusion, and following chase 9 gets up from the bottom with the assembly inclusion.

Referring to Fig. 2, the top of the LED lamp 11 on the pcb board 10 is facing to LGP 1.The control circuit of LED lamp 11 is FPC12.

The utility model is that the Side View LED that original color screen is used uses into Top View LED instead, the bulk FPC that used is originally used instead to PCB add a fritter FPC, thereby reduce the backlight cost, promotes production efficiency.PCB is parallel being adjacent to the LGP incidence surface during assembling, and PCB can easily stick into the draw-in groove of LGP, picks out the little FPC of a slice then and connect pin on PCB.The utility model can be applicable to backlight and TFT glass Knockdown blocks such as GPS navigation instrument.

The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.

Claims

1. the backlight of a navigator, a side that comprises LGP, described LGP has the led circuit plate, on the one side of led circuit plate, be provided with the LED lamp, it is characterized in that: described led circuit plate is a pcb board, wherein the napex of LED lamp picks out a fritter connects usefulness as terminal FPC facing to described LGP on the described pcb board.

2. according to the backlight of the described navigator of claim 1, it is characterized in that: the framework that fuses with LGP is provided with the groove structure of carrying backlight assembly.