CN102566091A

CN102566091A - Liquid crystal display device

Info

Publication number: CN102566091A
Application number: CN2010106015229A
Authority: CN
Inventors: 锺政宪; 陈亚奇; 林志远
Original assignee: Dongguan Wanshida LCD Co Ltd; Wintek Corp
Current assignee: Dongguan Wanshida LCD Co Ltd; Wintek Corp
Priority date: 2010-12-23
Filing date: 2010-12-23
Publication date: 2012-07-11

Abstract

The invention relates to a liquid crystal display device, which comprises a lower frame, a backlight module, a shading adhesive tape, a liquid crystal panel and an upper frame, wherein the backlight module is arranged in the lower frame, the shading adhesive tape comprises a bottom edge and a side edge, the bottom edge is attached to the backlight module, the side edge is attached to the side surface of the lower frame, the liquid crystal panel is arranged on the surface of the shading adhesive tape corresponding to the lower frame, the edge of one surface of the liquid crystal panel is attached to the bottom edge of the shading adhesive tape, the periphery of the liquid crystal panel is attached to the side edge of the shading adhesive tape, and the upper frame is covered on the liquid crystal panel and combined with the lower frame.

Description

Liquid crystal indicator

Technical field

The present invention relates to a kind of technical field of display, refer to a kind of liquid crystal indicator that reduces material cost and make man-hour especially.

Background technology

The general existing liquid crystal indicator of industry; Mainly form by a LCD MODULE and a backlight module; See also the structural representation of a kind of available liquid crystal display device shown in Figure 1; This liquid crystal indicator 100 comprises prismatic lens 105 on the two-sided adhesive tape of a upper ledge 101, a liquid crystal panel 102, one 103, the glue frame 104,, once prismatic lens 106, a diffusion sheet 107, a LGP 108, a reflector plate 109 and a lower frame 110; One side of this LGP 108 is provided with the light source (not shown), and this liquid crystal panel 102 relies on double sticky tape 103 to stick at this glue frame 104 constituting a LCD MODULE 111, and should go up prismatic lens 105, prismatic lens 106, diffusion sheet 107, LGP 108, reflector plate 109 and light source of being arranged at LGP 108 1 sides down; Then constitute a backlight module 112; As shown in Figure 1, this glue frame 104 is arranged in this lower frame 110, and this glue frame 104 presents the design of two laminars; Aforementioned this backlight module 112 is arranged at this glue frame 104 lower layer spaces, and there is disadvantage in above-mentioned traditional liquid crystal display device 100 structures:

Glue frame 104 be generally one be " mouth " type rectangular frame, therefore take lower frame 110 many inner spaces, cause the volume of liquid crystal indicator 100 and weight effectively to reduce, can't meet light, thin, short, the little designer trends in market.

2. with glue frame 104 bearing liquid crystal display panels 102, the prior art for the industry tradition adopts because industry is little for the capacity variance of glue frame 104 ejection formations, therefore can't have obvious competitive power than the same trade with regard to module thinning and narrow back gauge design aspect.

3. the die cost height of glue frame 104 and die sinking time are long.Therefore have a strong impact on the exploitation time-histories and increase cost.

Summary of the invention

Because the disappearance of prior art, the present invention proposes a kind of liquid crystal indicator, omits traditional glue frame; Coat and carry backlight module and liquid crystal panel with the metal lower frame; And avoid light leak with shading rubber belt with flanging structure, and meet light, thin, short, the little designer trends in market, promote the market competitiveness; Reduce material cost and make man-hour, but and expedite product Time To Market.

For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:

A kind of liquid crystal indicator is characterized in that, comprises:

One lower frame, this lower frame has a bottom surface, is provided with the side at this bottom surface periphery, has an angle between this side and this bottom surface, constitutes an accommodation space by this bottom surface and side, and this lower frame is a metal material;

One backlight module, this backlight module are arranged in this accommodation space of this lower frame;

One shading rubber belt; This shading rubber belt comprises a base and a side; This base be connected with side and this base and side between have an angle; This base is posted by this backlight module with respect to the face with this lower frame, and this side is posted by the side of this lower frame, and has a hollow part in the base of this shading rubber belt; And

One liquid crystal panel; This liquid crystal panel is arranged at this shading rubber belt with respect to the face with this backlight module; The edge of the one side of this liquid crystal panel and the base of this shading rubber belt recline; The periphery of this liquid crystal panel and the side of this shading rubber belt recline, and the hollow part of this shading rubber belt is corresponding to the vision area of this liquid crystal panel.

Wherein: more comprise a upper ledge, this upper ledge is arranged at the face that this liquid crystal panel does not have this backlight module, and this upper ledge and this lower frame make up each other and this backlight module and liquid crystal panel are located between this upper ledge and this lower frame.

Wherein: this liquid crystal panel comprises a liquid crystal cells and is arranged at two relative two polaroids of this liquid crystal cells respectively; The size of these two polaroids is less than the size of this liquid crystal cells; Form at least one recessed area at this liquid crystal cells edge and this polaroid edge, be provided with a buffering foam sponge in this recessed area.

Wherein: each this polaroid has relative two edges; These two polaroids are arranged at relative two of this liquid crystal cells respectively; These relative two edges of two polaroids form four recessed areas altogether with corresponding liquid crystal cells edge, are provided with a buffering foam sponge in each this recessed area.

Wherein: this backlight module comprises:

One reflector plate, this reflector plate have relative two, and this reflector plate wherein simultaneously is posted by the bottom surface of this lower frame;

One LGP, this LGP have relative two, and this LGP wherein one side is posted by the face that this reflector plate does not recline with this lower frame bottom surface;

One diffusion sheet, this diffusion sheet have relative two, and this diffusion sheet wherein one side is posted by the face that this LGP does not recline with this reflector plate;

Rhombus lens once, this time rhombus lens has relative two, and this time rhombus lens wherein one side is posted by the face that this diffusion sheet does not recline with this LGP;

Rhombus lens on one, rhombus lens has relative two on this, on this rhombus lens wherein one side be posted by the face that this time rhombus lens does not recline with this diffusion sheet; And

One light source assembly; This light source assembly is made up of a first circuit board and the plural light source that is arranged at this first circuit board one side; This light source assembly is arranged at a side of this LGP, and this plural number light source produces light and injected in this LGP by this side of this LGP.

Wherein: the bottom surface of this lower frame is provided with plural double sticky tape, and this reflector plate is provided with hollow part corresponding to the position of this double sticky tape, and the face that this LGP and this reflector plate recline each other attaches with this double sticky tape corresponding to the position of this hollow part mutually.

Wherein: this LGP this side spacing that this light source assembly is set is provided is provided with plural microscope carrier; Be provided with double sticky tape at this plural number microscope carrier; The wherein one side of this double sticky tape is pasted on this microscope carrier; The another side of this double sticky tape provides the face stickup that is provided with light source with this first circuit board, between two adjacent microscope carriers, respectively is embedded a light source.

Wherein: wherein two microscope carriers of this plural number microscope carrier respectively are provided with a projection, are provided with two holes at this first circuit board, and these two holes correspond respectively to a projection, and corresponding each other hole and projection wear each other, and this first circuit board positioning action is provided.

Wherein: this liquid crystal panel has a second circuit board, and this second circuit board has one first relative end and one second end, and this first end is connected in this liquid crystal panel, and this second end convexedly stretches in outside this lower frame.

Wherein: this upper ledge is a metal material, and this upper ledge has a hollow part, is provided with sidewall at the periphery of this upper ledge; Sidewall at this upper ledge is provided with plural trip; Be provided with plural draw-in groove in the side of this lower frame, this upper ledge is arranged at the face that this liquid crystal panel does not have this backlight module, and the hollow part of this upper ledge is corresponding to the vision area of this liquid crystal panel; The sidewall of this upper ledge is located in the periphery of the side of this lower frame, and the plural trip of this upper ledge sidewall is with corresponding plural draw-in groove colludes each other and closes in this lower frame side.

11. liquid crystal indicator according to claim 1 is characterized in that: the side of this lower frame is the double-decker of bending forming.

Description of drawings

Fig. 1 is the cross-sectional view of available liquid crystal display device;

Fig. 2 is an exploded perspective structural drawing of the present invention;

Fig. 3 to Fig. 5 is an assembling flow path synoptic diagram of the present invention;

Fig. 6 is a combination three-dimensional structure diagram of the present invention;

Fig. 7 is the A-A sectional structure chart of Fig. 6.

Description of reference numerals:

Prior art: 100-liquid crystal indicator; The 101-upper ledge; The 102-liquid crystal panel; The 103-double sticky tape; 104-glue frame; The last prismatic lens of 105-; Prismatic lens under the 106-; The 107-diffusion sheet; The 108-LGP; The 109-reflector plate; The 110-lower frame;

The present invention: 10-lower frame; The 11-bottom surface; The 12-side; The 13-draw-in groove; The 14-double sticky tape; The 20-backlight module; The 21-reflector plate; The 211-hollow part; The 22-LGP; One side of 221-LGP; The 222-microscope carrier; The 223-double sticky tape; The 224-projection; The 23-diffusion sheet; Rhombus lens under the 24-; The last rhombus lens of 25-; The 26-light source assembly; The 261-first circuit board; The 262-light source; The 263-hole; The 30-shading rubber belt; The 31-base; The 32-side; The 40-liquid crystal panel; The 41-liquid crystal cells; 42,43-polaroid; 44a～44d-recessed area; 45a～45d-buffering foam sponge; The 46-second circuit board; 461-first end; 462-second end; The 50-upper ledge; The 51-hollow part; The 52-sidewall; The 53-trip.

Embodiment

Below will be with reference to the graphic the present invention of description who encloses for reaching employed technological means of purpose and effect, and below graphic cited embodiment be merely aid illustration, in order to your juror understand, but that the technological means of this case is not limited to is cited graphic.

See also shown in Figure 2ly, liquid crystal indicator provided by the present invention comprises a lower frame 10, a backlight module 20, a shading rubber belt 30, a liquid crystal panel 40 and a upper ledge 50.

This lower frame 10 is a metal material, and this lower frame 10 has a bottom surface 11, is provided with side 12 at these bottom surface 11 peripheries; Have an angle between this side 12 and this bottom surface 11, this angle is 90 degree usually, and this side 12 is the double-decker of bending forming; Constitute an accommodation space by this bottom surface 11 with side 12, the set-up mode of this side 12 does not have certain limitation, in the present embodiment; This bottom surface 11 is a rectangle lamellar body; This side 12 is arranged at around this bottom surface 11, and this side 12 has the height differing heights and roughly can form the edge of a rectangle, is provided with plural draw-in groove 13 in this side 12.

See also Fig. 2 and shown in Figure 3, this backlight module 20 is arranged in this accommodation space of this lower frame 10, and this backlight module 20 comprises a reflector plate 21, a LGP 22, a diffusion sheet 23, once a rhombus lens 25 and a light source assembly 26 on the rhombus lens 24.

This reflector plate 21 has relative two; This reflector plate 21 wherein simultaneously is posted by the bottom surface 11 of this lower frame 10; The bottom surface 11 of this lower frame 10 is provided with plural double sticky tape 14; This reflector plate 21 is provided with hollow part 211 corresponding to the position of this double sticky tape 14, reflector plate 21 is arranged at this bottom surface 11 after, this double sticky tape 14 exposes to this hollow part 211.This LGP 22 has relative two; This LGP 22 wherein one side is posted by the face that this reflector plate 21 does not recline with these lower frame 10 bottom surfaces 11; Because this double sticky tape 14 exposes to this hollow part 211; Therefore the face that reclines each other of this LGP 22 and this reflector plate 21 attaches with this double sticky tape 14 corresponding to the position of this hollow part 211 mutually, and this double sticky tape 14 can provide this LGP 22 positioning actions.This diffusion sheet 23 has relative two; This diffusion sheet 23 wherein one side is posted by the face that this LGP 22 does not recline with this reflector plate 21; This time rhombus lens 24 has relative two; This time rhombus lens 24 wherein one side is posted by the face that this diffusion sheet 23 does not recline with this LGP 22, and rhombus lens 25 has relative two this on, and rhombus lens 25 wherein simultaneously is posted by the face that this time rhombus lens 24 does not recline with this diffusion sheet 23 on this.

Secondly; This light source assembly 26 is by a first circuit board 261 and be arranged at wherein plural light source 262 formations of one side (illustrating the bottom surface of this first circuit board 261) of this first circuit board 261; This light source assembly 26 is arranged at a side 221 of this LGP 22; This LGP 22 side 221 spacings that this light source assembly 26 is set are provided is provided with plural microscope carrier 222, is provided with double sticky tape 223 at this plural number microscope carrier 222, and the wherein one side of this double sticky tape 223 is pasted on this microscope carrier 222; The another side of this double sticky tape 223 provides the face stickup that is provided with light source 262 with this first circuit board 261; Wherein two microscope carriers 222 of this plural number microscope carrier 222 respectively are provided with a projection 224, are provided with two holes 263 at this first circuit board 261, and this two hole 263 corresponds respectively to a projection 224; Corresponding each other hole 263 wears with projection 224 each other; This first circuit board 261 positioning actions can be provided, between two adjacent microscope carriers 222, can respectively be embedded a light source 262, this plural number light source 262 produces light and is injected in this LGP 22 by this side 221 of this LGP 22.

See also Fig. 2, Fig. 4 and shown in Figure 5, rely on above-mentioned member and array mode thereof, can backlight module 20 be arranged in the lower frame 10; Form aspect as shown in Figure 4; Then, shading rubber belt 30 is assembled on this backlight module 20, this shading rubber belt 30 comprises a base 31 and a side 32 again; This base 31 be connected with side 32 and this base 31 and side 32 between have an angle; Usually this angle is 90 degree, constitutes a flanging structure by this base 31 with side 32, and the base 31 of this shading rubber belt 30 is posted by this backlight module 20 with respect to the face with this lower frame 10 (also promptly illustrating the end face of rhombus lens 25 on this); The side 32 of this shading rubber belt 30 is posted by the side 12 of this lower frame 10, and is as shown in Figure 5.

See also Fig. 2, Fig. 4 to shown in Figure 6, this liquid crystal panel 40 comprises a liquid crystal cells 41 and is arranged at relative two two

polaroids

42,43 of this liquid crystal cells 41 respectively that the size of these two

polaroids

42,43 is less than the size of this liquid crystal cells 41; Each this

polaroid

42,43 has relative two edges, and these two polaroids are arranged at relative two of this liquid crystal cells respectively, and these two polaroids, 42,43 relative two edges form four recessed area 44a～44d altogether with corresponding liquid crystal cells 41 edges; Be provided with a buffering foam sponge 45a～45d in each this recessed area 44a～44d, this liquid crystal panel 40 has a second circuit board 46, and this second circuit board 46 has one first relative end 461 and one second end 462; This first end 461 is connected in this liquid crystal panel 40, and this liquid crystal panel 40 that is provided with buffering foam sponge 45a～45d is arranged at this shading rubber belt 30 with respect to the face with this backlight module 20, and is as shown in Figure 5; Again this upper ledge 50 is arranged at the face that this liquid crystal panel 40 does not have this backlight module 20; This upper ledge 50 is a metal material, and wherein, this upper ledge 50 can be according to the actual needs setting of liquid crystal indicator; Promptly this upper ledge 50 can not need be set at liquid crystal indicator partly; Like present embodiment is the structure with this upper ledge 50, and this upper ledge 50 has a hollow part 51, is provided with sidewall 52 at the periphery of this upper ledge 50; Sidewall 52 at this upper ledge 50 is provided with plural trip 53; This upper ledge 50 is covered on this liquid crystal panel 40, and the hollow part 51 of this upper ledge 50 is corresponding to the vision area of this liquid crystal panel 40, and the sidewall 52 of this upper ledge 50 is located in the periphery of the side 12 of this lower frame 10; The trip 53 of these upper ledge 50 sidewalls 52 can close with colluding each other in these lower frame 10 sides 12 corresponding draw-in grooves 13; Can this upper ledge 50 be mutually combined with this lower frame 10, and this backlight module 20 and liquid crystal panel 40 are located between this upper ledge 50 and this lower frame 10, as shown in Figure 6; Wherein, second end 462 of this second circuit board 46 convexedly stretches in outside this lower frame 10.

See also shown in Figure 7; This reflector plate 21, LGP 22, diffusion sheet 23, time rhombus lens 24, last rhombus lens 25 stack in this lower frame 10, and the base 31 of this shading rubber belt 30 is posted by rhombus lens 25, and the side 31 of this shading rubber belt 30 is posted by the side 12 of this lower frame 10; The edge of the one side of this liquid crystal panel 40 (also i.e. the edge of the bottom surface of this liquid crystal panel 40) reclines with the base 31 of this shading rubber belt 30; The side 32 of the periphery of this liquid crystal panel 40 and this shading rubber belt 30 reclines, mandatory declaration be that the base of this shading rubber belt 30 31 does not have certain limitation with the shape of side 32; In present embodiment; This base 31 is rectangle frames, has a hollow part 33 in the base 31 of this rectangle frame aspect, and this hollow part 33 is corresponding to the vision area of this liquid crystal panel 40; And the vision area of these base 31 these liquid crystal panels 40 of unlikely interference; This side 32 is arranged at the periphery on this base 31, and this side 32 has the height differing heights and roughly can form the side of a rectangle, and the shape of this side 32 designs according to the shape of lower frame 10, backlight module 20 and liquid crystal panel 30 that reality cooperated and size; And base 31 and side 32 serve as suitable with the periphery that can coat this liquid crystal panel 40 and the edge of this liquid crystal panel 40 bottoms as far as possible; Rely on the base 31 and the side 32 of this shading rubber belt 30, this liquid crystal panel 40 periphery interceptions can be provided, avoid light leak; Rely on this

buffering foam sponge

45c, 45d that recessed area 44c, the 44d buffer action (in like manner, in Fig. 4 and two

buffering foam sponge

45a, 45b in addition shown in Figure 5 this liquid crystal panel 40

recessed area

44a, 44b buffer action being provided also) of this liquid crystal panel 40 are provided simultaneously.

In sum; Liquid crystal indicator provided by the invention coats and carrying backlight module and liquid crystal panel with the metal lower frame, and to have the shading rubber belt of folding edge structure; To have the effect of avoiding light leak; Can omit the employed glue frame of traditional liquid crystal indicator, and rely on the double-deck side of lower frame bending forming and the design that is attached at the buffering foam of liquid crystal panel recessed area, can form the height protective effect liquid crystal panel.

More than explanation is just illustrative for the purpose of the present invention; And nonrestrictive, those of ordinary skills understand, under the situation of spirit that does not break away from claim and limited and scope; Can make many modifications, variation or equivalence, but all will fall within protection scope of the present invention.

Claims

1. A liquid crystal display device, characterized in that, comprising:

A lower frame, the lower frame has a bottom surface, a side surface is provided on the periphery of the bottom surface, an angle is formed between the side surface and the bottom surface, and an accommodation space is formed by the bottom surface and the side surface, and the lower frame is made of metal material;

a backlight module, the backlight module is arranged in the accommodating space of the lower frame;

A light-shielding tape, the light-shielding tape includes a bottom edge and a side edge, the bottom edge and the side edge are connected and there is an angle between the bottom edge and the side edge, the bottom edge is attached to the backlight module relative to the The surface of the lower frame, the side edge is attached to the side surface of the lower frame, and the bottom edge of the light-shielding tape has a hollow part; and

A liquid crystal panel, the liquid crystal panel is arranged on the surface of the light-shielding tape opposite to the backlight module, the edge of one side of the liquid crystal panel is close to the bottom edge of the light-shielding tape, and the periphery of the liquid crystal panel is in contact with the side edge of the light-shielding tape and the hollow part of the light-shielding tape corresponds to the viewing area of the liquid crystal panel.

2. The liquid crystal display device according to claim 1, further comprising an upper frame, the upper frame is arranged on the surface of the liquid crystal panel without the backlight module, the upper frame and the lower frame are combined with each other and The backlight module and the liquid crystal panel are sandwiched between the upper frame and the lower frame.

3. The liquid crystal display device according to claim 1, wherein the liquid crystal panel comprises a liquid crystal cell and two polarizers respectively arranged on opposite sides of the liquid crystal cell, and the size of the two polarizers is smaller than that of the liquid crystal According to the size of the unit, at least one shrinkage area is formed at the edge of the liquid crystal unit and the edge of the polarizer, and a buffer foam is arranged in the shrinkage area.

4. The liquid crystal display device according to claim 1, wherein the backlight module comprises:

A reflective sheet, the reflective sheet has two opposite surfaces, one of which is attached to the bottom surface of the lower frame;

A light guide plate, the light guide plate has two opposite surfaces, one side of the light guide plate is attached to the surface of the reflective sheet that is not attached to the bottom surface of the lower frame;

A diffusion sheet, the diffusion sheet has two opposite surfaces, one side of the diffusion sheet is attached to the surface of the light guide plate that is not attached to the reflection sheet;

A lower rhombic sheet, the lower rhombic sheet has two opposite surfaces, one side of the lower rhombic sheet is attached to the surface of the diffusion sheet that is not attached to the light guide plate;

An upper rhomboid lens, the upper rhomboid lens has two opposite surfaces, one side of the upper rhomboid lens is attached to the surface of the lower rhomboid lens that is not attached to the diffusion sheet; and

A light source assembly, the light source assembly is composed of a first circuit board and a plurality of light sources arranged on one side of the first circuit board, the light source assembly is arranged on one side of the light guide plate, the light generated by the plurality of light sources is emitted by the light guide plate The side edge is projected into the light guide plate.

5. The liquid crystal display device according to claim 4, characterized in that: the bottom surface of the lower frame is provided with a plurality of double-sided tapes, the reflector is provided with a hollow portion corresponding to the position of the double-sided tapes, and the light guide plate and The mutually abutting surfaces of the reflective sheets correspond to the positions of the hollow parts, and are attached to the double-sided adhesive tape.

6. The liquid crystal display device according to claim 4, characterized in that: the light guide plate is provided with a plurality of stages spaced apart from the sides of the light source assembly, and a double-sided adhesive tape is arranged on the plurality of stages, and the double-sided adhesive tape is arranged on the plurality of stages. One side of the double-sided adhesive tape is pasted on the carrier, and the other side of the double-sided adhesive tape is provided with a light source on the first circuit board, and a light source is embedded between two adjacent carriers.

7. The liquid crystal display device according to claim 6, wherein two of the plurality of stages are each provided with a boss, and the first circuit board is provided with two holes, the two holes are respectively Corresponding to a protruding post, the holes corresponding to each other pass through the protruding post to provide the positioning function of the first circuit board.

8. The liquid crystal display device according to claim 1, wherein the liquid crystal panel has a second circuit board, the second circuit board has a first end and a second end opposite to each other, and the first end is connected to In the liquid crystal panel, the second end protrudes outside the lower frame.

9. The liquid crystal display device according to claim 2, characterized in that: the upper frame is made of metal, the upper frame has a hollow portion, a side wall is provided on the periphery of the upper frame, and a side wall of the upper frame The wall is provided with a plurality of hooks, a plurality of card slots are provided on the side of the lower frame, the upper frame is arranged on the surface of the liquid crystal panel that does not have the backlight module, and the hollow part of the upper frame corresponds to the viewing area of the liquid crystal panel , the side wall of the upper frame surrounds the periphery of the side of the lower frame, and the plurality of hooks on the side wall of the upper frame engage with the corresponding plurality of slots on the side of the lower frame.

10. The liquid crystal display device according to claim 1, wherein the side of the lower frame is a double-layer structure formed by bending.