CN205193399U

CN205193399U - Liquid crystal display module

Info

Publication number: CN205193399U
Application number: CN201521082569.3U
Authority: CN
Inventors: 谌微
Original assignee: Jiangxi Holitech Technology Co Ltd
Current assignee: Jiangxi Holitech Technology Co Ltd
Priority date: 2015-12-18
Filing date: 2015-12-18
Publication date: 2016-04-27
Anticipated expiration: 2025-12-18

Abstract

The utility model provides a liquid crystal display module, including flexible printed circuit board, liquid crystal display panel and contain a backlight module who glues the frame, liquid crystal display panel is embedded in gluing the frame, flexible printed circuit board's one end and liquid crystal display panel are connected, the other end extends to outside the gluey frame, flexible printed circuit board and the juncture of gluing the frame set up the district of buckling, it sets up the trompil that at least one area is greater than 0.5mm2 to buckle to distinguish, it is 0.01mm~0.02mm polyimide film reinforcing band that flexible printed circuit board width direction's both sides are provided with the width, the inside deformation stress of liquid crystal display module has effectively been reduced, flexible printed circuit board's anti tensile properties and tear resistance have been increased, liquid crystal display's reliability has effectively been improved.

Description

A kind of LCD MODULE

[technical field]

The utility model relates to field of liquid crystal display, particularly relates to a kind of LCD MODULE flexible print circuit board (FPC) nation being fixed on (FPC-on-Glass) on liquid crystal panel.

[background technology]

LCD MODULE refers to the liquid crystal display component in electronic equipment, comprises polaroid, liquid crystal panel, lower polaroid, backlight module, chip (IC) and flexible print circuit board (FPC).In general, the encapsulation of LCD MODULE is divided into following three steps: one, reflector plate, light guide plate, light emitting diode (LED) assembly, diffusion sheet, brightening piece, black and white glue are placed in glue frame according to order from top to bottom successively, forms backlight module; Two, upper polaroid, lower polaroid and liquid crystal panel fit after nation determine IC and FPC, formation LCD MODULE (LCD module); Three, assemble LCD module backlight module, form LCD MODULE.

Because FPC is for base material with mylar or polyimide, Copper Foil forms circuit and the flexible printed circuit made by being etched in, having that volume is little, lightweight, thickness is thin, bent, packing density advantages of higher, is the means that current field of liquid crystal display realizes high-density circuit.In LCDs encapsulation process, FPC is connected with the terminal region of liquid crystal panel by anisotropic conductive film (ACF) that (liquid crystal panel exists a step surface along its length, be used for placing IC and connecting FPC, be called terminal region, another part panel higher than terminal region is called viewing area).In order to adapt to the size of electronic equipment, the highly dense assembling of realizing circuit, FPC must bend.But, because deformation can produce certain deformational stress after FPC bending, and this deformational stress be have destructive, it may directly cause the internal wiring of FPC to damage, also possibility indirectly-acting is in face glass, make face glass be subject to power upwards and then cracked, affect quality and the life-span of product; Further, the good FPC of stretch-proof performance often hardness is larger, and the deformational stress of generation is also larger; Again further, because this deformational stress is a kind of lasting acting force, be present in FOG structure and may can not be found immediately, also may embody in subsequent handling, therefore be also difficult to detect this deformational stress and supervise, be difficult to take precautions against the destructive consequence that this deformational stress is brought.

[summary of the invention]

In order to solve the problem, the utility model provides a kind of LCD MODULE, effectively improves the reliability of LCDs.

Concrete technical scheme of the present utility model is as follows:

A kind of LCD MODULE, comprise FPC, liquid crystal panel and the backlight module containing a glue frame, described liquid crystal panel is embedded in glue frame, one end of described FPC is connected with liquid crystal panel, the other end extends to outside glue frame, the intersection of FPC and glue frame arranges a bent area, it is characterized in that, described bent area arranges at least one perforate.

Above-mentioned LCD MODULE, it one is characterised in that again, and described FPC comprises P.e.c. and clear area, and described perforate is arranged on clear area.

Above-mentioned LCD MODULE, it one is characterised in that again, and the area of described perforate is greater than 0.5mm ², be less than the area of clear area and bent area intersection.

Above-mentioned LCD MODULE, its another feature is, the both sides of described FPC Width are provided with Kapton (PI) reinforcing band.

Above-mentioned LCD MODULE, it one is characterised in that again, and the width of described reinforcing band is 0.01mm ~ 0.02mm.

Above-mentioned LCD MODULE, it one is characterised in that again, and the shape of described perforate is circular.

The utility model can produce technique effect useful as follows:

1) the utility model arranges some perforates in the bent area of FPC, the deformational stress that FPC bending produces can be effectively reduced, reduce the power be applied on internal wiring, reduce the damage of circuit in FPC, also reduce the power that FPC tilts, thus make FPC more docile more reliable;

2) the utility model arranges some perforates in the bent area of FPC, the deformational stress that FPC bending produces can be effectively reduced, reduce in FOG structure the power upwards applied on glass panels, the particularly power of terminal region, thus reduce the cracked risk of glass plate, improve quality and the life-span of product;

3) perforate of the present utility model is arranged on FPC clear area, neither affects circuit, turn reduces the deformational stress be present in FOG structure, and the quality of FPC under decreasing equal conditions, is conducive to manufacturing gentlier, thinner LCDs;

4) perforate of the present utility model is arranged on the intersection of FPC clear area and bent area, and therefore its area can not exceed the area of this intersection, and when perforated area is greater than 0.5mm ²time, the effectiveness comparison of release deformational stress is obvious, and area is larger, and effect is more obvious;

5) the utility model arranges the PI reinforcing band of wide 0.01mm ~ 0.02mm on the both sides in FPC width degree direction, substantially increase stretch-proof performance and the tear resistance of FPC, owing to not being significantly increased the hardness of FPC, the area simultaneously increased in bent area is also very little, so also do not increase the risk of deformational stress;

6) perforate of the present utility model more preferably rule, the round and smooth shape such as circular, such one side perforate ratio is easier to, area control is also fairly simple, and deformational stress remaining on the other hand has isotropically acted on this shape edge of FPC, not easily produces the slight crack at the positions such as corner.

[accompanying drawing explanation]

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

Fig. 2 is the FPC structural representation of the utility model embodiment two.

The implication of Reference numeral in figure: 1-FPC, 2-liquid crystal panel viewing area, 3-glue frame, 4-liquid crystal panel terminal region, 6-bent area, 7-perforate, 8-clear area, 9-PI reinforcing band.

[embodiment]

Also by reference to the accompanying drawings the present invention is further elaborated below by concrete embodiment.

Following provided embodiment is also not used to limit the scope that contains of the utility model, and described step neither in order to limit its execution sequence.Any through reconfiguring, produce the device with equivalent effect, be all the scope that the utility model is contained.

Embodiment one.

A kind of LCD MODULE, comprise FPC1, liquid crystal panel and the backlight module containing a glue frame 3, described liquid crystal panel is embedded in glue frame 3.There is a step surface in liquid crystal panel, is called terminal region 4 along its length, and another part panel higher than terminal region is called viewing area 2.One end of FPC1 is fixed on the terminal region 4 of liquid crystal panel by ACF, and the other end of FPC1 extends to outside glue frame 3.The intersection of FPC1 and glue frame 3 arranges a bent area 6.FPC1 comprises the clear area 8 of P.e.c. and non-P.e.c..Arrange the perforate 7 of at least one in the intersection of bent area 6 and clear area 8, the area of described perforate is greater than 0.5mm ², be less than the area of clear area 8 and bent area 6 intersection.In the present embodiment, perforate 7 is preferably 1, and shape is oval, and the smooth of the edge is continuous, and area is 1.5mm ².Meanwhile, the both sides in FPC1 width degree direction are provided with Kapton reinforcing band 9, and the width of this reinforcing band 9 is 0.01mm ~ 0.02mm, and in the present embodiment, the width of reinforcing band 9 is 0.01mm.

Embodiment two.

A kind of LCD MODULE, comprise FPC1, liquid crystal panel and the backlight module containing a glue frame 3, described liquid crystal panel is embedded in glue frame 3.There is a step surface in liquid crystal panel, is called terminal region 4 along its length, and another part panel higher than terminal region is called viewing area 2.One end of FPC1 is fixed on the terminal region 4 of liquid crystal panel by ACF, and the other end of FPC1 extends to outside glue frame 3.The intersection of FPC1 and glue frame 3 arranges a bent area 6.FPC1 comprises the clear area 8 of P.e.c. and non-P.e.c..Arrange the perforate 7 of at least one in the intersection of bent area 6 and clear area 8, the area of described perforate is greater than 0.5mm ², be less than the area of clear area 8 and bent area 6 intersection.In the present embodiment, perforate 7 is preferably 2, and one is circular, and area is 0.5mm ², one be irregularly shaped, the smooth of the edge is continuous, and area is 1mm ².Meanwhile, the both sides in FPC1 width degree direction are provided with Kapton reinforcing band 9, and the width of this reinforcing band 9 is 0.01mm ~ 0.02mm, and in the present embodiment, the width of reinforcing band 9 is 0.02mm.

Claims

1. a LCD MODULE, comprise flexible print circuit board (1), liquid crystal panel and the backlight module containing a glue frame (3), described liquid crystal panel is embedded in glue frame (3), one end of described flexible print circuit board (1) is connected with liquid crystal panel, the other end extends to glue frame (3) outward, flexible print circuit board (1) arranges a bent area (6) with the intersection of glue frame, it is characterized in that, described bent area (6) arrange at least one perforate (7).

2. a kind of LCD MODULE according to claim 1, is characterized in that, described flexible print circuit board (1) comprises P.e.c. and clear area (8), and described perforate (7) is arranged on clear area (8).

3. a kind of LCD MODULE according to claim 2, is characterized in that, the area of described perforate (7) is greater than 0.5mm ², be less than the area of clear area (8) and bent area (6) intersection.

4. a kind of LCD MODULE according to claim 3, is characterized in that, the both sides of described flexible print circuit board (1) Width are provided with Kapton reinforcing band (9).

5. a kind of LCD MODULE according to claim 4, is characterized in that, the width of described reinforcing band (9) is 0.01mm ~ 0.02mm.

6. a kind of LCD MODULE according to claim 4, is characterized in that, the shape of described perforate (7) is circular.