CN201392439Y - Liquid crystal display device having a plurality of pixel electrodes - Google Patents

Abstract

The utility model discloses a liquid crystal display device, which comprises a frame and a liquid crystal display module fixed in the frame. The frame has an inner frame and a shielding member covering one end of the inner frame. The inner frame is provided with a guide inclined plane and a first clamping structure at one end corresponding to the shielding piece. The shielding piece is stamped with an elastic clamping plate and an elastic sheet, and a second clamping structure is arranged on the side face of the shielding piece. The lower surface of the liquid crystal display module is provided with a bare copper area of the flexible circuit board. The utility model discloses during the equipment, the shielding part can be very easy lid by the guide on guide inclined plane and close the one end at the inside casing, is fixed with first card solid structure looks block by the second card solid structure again, makes the naked copper district of flexible circuit board and elasticity cardboard looks butt, and the inside circuit board looks butt of shell fragment and electron device switches on, and then releases the inside and outside static of liquid crystal display device, thereby the utility model discloses liquid crystal display device assembles simply and low cost.

Description

Liquid crystal display device

technical field

The utility model relates to a liquid crystal display device, in particular to a liquid crystal display device with an electrostatic discharge protection structure.

Background technique

The liquid crystal display device is easy to generate electrostatic discharge inside it during the manufacturing process of welding, coating and bias point, which will damage its internal electronic components; Or the electrostatic discharge generated by other external factors will also enter the liquid crystal display device through the assembly gap on the electronic device and damage its internal electronic components.

A liquid crystal display device as shown in Figure 1 and Figure 2, the liquid crystal display device includes a frame 10', a display module 20' fixed in the frame 10' and an anisotropic conductive Glue 30'. The frame 10' includes an outer shell 11', an inner frame 12' disposed in the outer shell 11', and a cover frame 13' covering the outer shell 11' and the inner frame 12'. The liquid crystal display device uses the shell 11' and the cover frame 13' to shield the electrostatic discharge from the outside, and uses the anisotropic conductive glue 30' to conduct with the circuit board inside the electronic device to release the internal and external discharge of the liquid crystal display device. External static electricity. The anisotropic conductive adhesive 30' can be replaced by conductive objects such as copper foil.

However, the electrostatic discharge protection structure of the above-mentioned existing liquid crystal display device is composed of the shell 11', the cover frame 13' and the anisotropic conductive glue 30', which requires many materials, complicated assembly and expensive cost.

Utility model content

The purpose of this utility model is to provide a liquid crystal display device with an electrostatic discharge protection structure that is easy to assemble and low in cost in view of the defects and insufficiencies of the above-mentioned prior art.

In order to achieve the above purpose, the liquid crystal display device provided by the utility model includes a frame and a liquid crystal display module fixed in the frame. The frame has an inner frame and a shield covering one end of the inner frame. The inner frame is formed with a guiding slope and a first fastening structure at one end corresponding to the shielding part. The shielding part is punched and formed with an elastic clamping plate and a shrapnel, and the side of the shielding part is provided with a second fastening structure engaged with the first fastening structure. The lower surface of the liquid crystal display module is provided with a bare copper area of the flexible circuit board.

As mentioned above, when the liquid crystal display device of the present invention is assembled, the shielding member can easily cover one end of the inner frame by the guidance of the guide slope, and then the second locking structure is connected with the first locking member on the inner frame. The solid structure is engaged and fixed, so that the bare copper area of the flexible circuit board of the liquid crystal display module is in contact with the elastic clamping plate of the shield, and the internal and external of the liquid crystal display device is realized by the contact between the shrapnel and the circuit board inside the electronic device. Electrostatic discharge, so that the liquid crystal display device of the utility model is easy to assemble and has low cost.

Description of drawings

FIG. 1 is a perspective view of a liquid crystal display device in the background art.

FIG. 2 is an exploded perspective view of the liquid crystal display device shown in FIG. 1 .

FIG. 3 is a perspective view of an embodiment of the liquid crystal display device of the present invention.

FIG. 4 is an exploded perspective view of the liquid crystal display device shown in FIG. 3 .

FIG. 5 is a perspective view of a shielding member of the liquid crystal display device shown in FIG. 3 .

FIG. 6 is a perspective view of an inner frame of the liquid crystal display device shown in FIG. 3 .

FIG. 7 is a perspective view from another angle of the liquid crystal display device shown in FIG. 3 .

FIG. 8 is a side cross-sectional view of the liquid crystal display device shown in FIG. 3 assembled into its applied electronic device.

FIG. 9 is a partially enlarged view of part IX in FIG. 8 .

The reference signs of each component in the figure are explained as follows:

〔Background technique〕

Frame 10’ Housing 11’

Inner frame 12’ Cover frame 13’

Display module 20’ Anisotropic conductive adhesive 30’

[this utility model]

Frame 10 Shield 11

Top plate 111 Bottom plate 112

Pallet slot 1121 Elastic pallet 1122

Shrapnel 1123 Side Plate 113

Cover 114 Card Slot 115

Guide groove 1151 Chute 1152

Fastening slot 1153 inner frame 12

Frame 121 Frame Wall 122

Bump 123 Slider 1231

Clamping Block 1232 Capacity Slot 124

Guide inclined plane 125 LCD module 20

Bare copper area of flexible circuit board 21 circuit board 30

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 3 and FIG. 4 , the liquid crystal display device of the present invention includes a frame 10 and a liquid crystal display module 20 fixed in the frame 10 . The frame 10 includes an inner frame 12 and a shield 11 .

Please refer to Fig. 4 and Fig. 6, inner frame 12 is made of plastic material, and this inner frame 12 has several frames 121, and the outer edge of each frame 121 all extends vertically upwards to have a frame wall 122, and these several frames 121 and frame wall 122 A square space (not shown in the figure) is enclosed, and a first fastening structure protrudes from two opposite frame walls 122. In this embodiment, the first fastening structure is a bump 123, and the bump 123 It includes a strip-shaped slider 1231 and a cylindrical fastening block 1232 formed approximately in the middle of the slider 1231 . One end of the upper surface of the two opposite frame walls 122 that is provided with the protrusion 123 is provided with a groove 124, and one end of the lower surface of the two opposite frame walls 122 that is provided with the protrusion 123 forms a guide inclined toward the inside of the frame wall 122. Lead inclined plane 125.

Referring to Fig. 4 and Fig. 5, the shielding member 11 has a vertically placed cover plate 114, the upper edge and the lower edge of the cover plate 114 are respectively vertically bent and extended to have a top plate 111 and a bottom plate 112, and the front and rear ends of the cover plate 114 are vertical A side panel 113 is bent and extended. The top board 111 , the bottom board 112 , the side boards 113 and the cover board 114 enclose an accommodating space (not shown in the figure). The two side plates 113 are respectively provided with a second fastening structure engaged with the first fastening structure. In this embodiment, the second fastening structure is a fastening groove 115, and the fastening groove 115 includes a guide groove 1151, a The guide groove 1151 communicates with the elongated sliding groove 1152 and a circular fastening groove 1153 defined in the substantially middle of the sliding groove 1152 . Both sides of the bottom plate 112 are respectively cut and punched to form a clamping slot 1121 , an elastic clamping plate 1122 and an elastic piece 1123 extending from an edge of the clamping slot 1121 .

The lower surface of the liquid crystal display module 20 accommodated in the inner frame 12 of the utility model is provided with a bare copper area 21 of a flexible circuit board.

Please refer to FIGS. 7 to 9. When assembling the liquid crystal display device of the present invention, the liquid crystal display module 20 is placed in the square space surrounded by the frame 121 of the inner frame 12 and the frame wall 122, and then the shielding member 11 is removed from the inner frame. One side of the inner frame 12 is covered, so that the protrusion 123 of the inner frame 12 is engaged in the corresponding slot 115 of the shielding member 11, and one end of the inner frame 12 is inserted into the accommodating space of the shielding member 11. When the elastic clamping plate 1122 touches the inner frame 12 , it will elastically bend downward along the guiding slope 125 of the inner frame 12 and slide inward. Finally, the shielding member 11 is completely covered on the inner frame 12 with the built-in liquid crystal display module 20 . Since the inner frame 12 is preset with a cavity 124 , the top plate 111 of the shielding member 11 and the frame wall 122 of the inner frame 12 The upper surface is on the same plane. At this time, the elastic clamping plate 1122 abuts against the bare copper area 21 of the flexible circuit board provided on the lower surface of the liquid crystal display module 20 .

As shown in FIG. 8 and FIG. 9 , after the liquid crystal display device of the present invention is assembled on the mobile phone to which it is applied, the elastic piece 1123 abuts against the circuit board 30 inside the mobile phone.

As mentioned above, the liquid crystal display device of the present invention is composed of the abutment between the elastic clamping plate 1122 of the shielding part 11 and the bare copper area 21 of the flexible circuit board of the liquid crystal display module 20 and the shrapnel 1123 of the shielding part 11 and the electronic device (this embodiment) The abutment of the circuit board 30 inside the mobile phone) conducts, thereby releasing the static electricity inside and outside the liquid crystal display device. In the electrostatic discharge protection structure of the liquid crystal display device of the present invention, the shielding member 11 replaces the shell 11', the cover frame 13' and the anisotropic conductive glue 30' in the prior art, so that the assembly is simple and the cost is low.

The protection scope of the utility model is not limited to the above-mentioned embodiments, and various additions, modifications and substitutions are included in the protection scope of the patent. For example, the protrusion 123 can also be designed in the shape of a wedge, and the shape of the locking groove 115 changes accordingly.

Claims (6)

1. liquid crystal indicator, comprise that a framework and is fixed on the LCD MODULE in the framework, this framework has an inside casing and a shielding part, it is characterized in that: shielding part covers the end at inside casing, inside casing is formed with the guide ramp and first clamping structure at an end place of corresponding shielding part, flexible clamp of impact briquetting and shell fragment on the shielding part, the side of shielding part is provided with second clamping structure that fastens with first clamping structure; The lower surface of this LCD MODULE is provided with the flexible circuit board naked copper district that connects with the elasticity clamp.

2. liquid crystal indicator as claimed in claim 1 is characterized in that: described inside casing is made by plastic material, and this inside casing has some frames, and the lateral border of each frame all is extended with a frame wall vertically upward, and frame and frame wall surround a square space.

3. liquid crystal indicator as claimed in claim 2, it is characterized in that: an end that convexes with described first clamping structure of described two relative frame wall upper surfaces offers a tank, and an end that convexes with described first clamping structure of two relative frame wall lower surfaces forms one to the inboard described guide ramp that tilts of frame wall.

4. liquid crystal indicator as claimed in claim 1 is characterized in that: described first clamping structure is a projection, and this projection comprises that the slide block and of a strip is formed at the columned holding block of slide block approximate mid-section.

5. liquid crystal indicator as claimed in claim 1, it is characterized in that: described shielding part has a vertical cover plate of placing, vertical respectively bending is extended with top board and base plate to the coboundary of cover plate with lower limb, the rear and front end of cover plate all vertically bends and is extended with side plate, top board, base plate, side plate and cover plate surround an accommodation space, the two ends of base plate cut respectively and impact briquetting has a Card trough and extends from Card trough one edge described elasticity clamp and shell fragment.

6. liquid crystal indicator as claimed in claim 1 is characterized in that: described second clamping structure is a draw-in groove, and draw-in groove comprises that a gathering sill, a long strip sliding groove that is communicated with gathering sill and are opened in the fixing slot of the circle of chute approximate mid-section.

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