CN1302318C

CN1302318C - LCD Monitor

Info

Publication number: CN1302318C
Application number: CNB2003101028627A
Authority: CN
Inventors: 李国誌; 吴志刚
Original assignee: AU Optronics Corp
Current assignee: AUO Corp
Priority date: 2003-10-22
Filing date: 2003-10-22
Publication date: 2007-02-28
Anticipated expiration: 2023-10-22
Also published as: CN1538213A

Abstract

A liquid crystal display includes a front frame, an upper frame, a diffusion plate, a display panel and an optical film. The front frame has a first fastened member. The upper frame is arranged below the front frame. The diffusion plate is provided with a second fastened piece and is arranged below the front frame. The upper frame is provided with a first buckling piece corresponding to the first buckled piece and a second buckling piece corresponding to the second buckled piece, the first buckling piece and the first buckled piece can be mutually embedded, and the second buckling piece and the second buckled piece can be mutually embedded. The upper frame of the backlight assembly is used as a main body, and the front frame, the display panel, the upper frame, the optical film and the diffusion plate are combined into an integral structure by utilizing the mutual fastening action of the first fastening piece and the first fastened piece as well as the mutual fastening action of the second fastening piece and the second fastened piece, so that a user can conveniently and directly replace the light source. In addition, when the light source is replaced, the display panel, the optical film and the diffusion plate are not required to be taken out respectively, so that the phenomenon of scratching and damaging the components can be avoided.

Description

LCD

(1) technical field

The invention relates to a kind of LCD, and particularly relevant for a kind of Thin Film Transistor-LCD of easy its light source of replacing.

(2) background technology

Thin Film Transistor-LCD (TFT-LCD monitor) mainly comprises a display panel and a backlight assembly, and the purposes of backlight assembly required light when mainly being to provide display panel to show.Backlight assembly is different with set-up mode with the composition of its inner fluorescent tube, generally can be divided into two kinds of side formula backlight assembly and direct type backlight assemblies.In general large-sized liquid crystal mesogens display, can dispose a direct type backlight assembly usually, in order to even and sufficient light source to be provided, to show preferable image display quality.

Please refer to Fig. 1, it is the decomposing schematic representation of traditional part LCD.Frame (bezel) 110, a display panel 111 and a direct type backlight assembly 120 before traditional LCD 100 includes one at least.Backlight assembly 120 comprises a upper ledge (frame) 130, multi-layer optical film 112, diffuser plate 113, several light sources 114 and lamp socket (lamp holder) 115.Disposing a plurality of light sources arranged side by side 114 in the lamp socket 115, for example is that (Cold Cathode Fluorescent Lamp CCFL), shows needed light in order to display panel 111 to be provided to cold-cathode tube.

Because cold-cathode tube 114 has fixing serviceable life, must periodic replacement, to keep the stability that it supplies with the enough and uniform source of light of display panel 111.The light source replacing method of traditional backlight assembly 120 is, preceding frame 110 is separated with upper ledge 130 and take out before frame 110, then, take out in regular turn after display panel 111, upper ledge 130, blooming 112 and the diffuser plate 113, changed new light sources.After the replacing light source is finished, need in regular turn diffuser plate 113, blooming 112 upper ledges 130 and display panel 111 are put back again frame 110 before locking again at last.Like this, the light source of just finishing backlight assembly 120 more changes jobs.

Yet, when changing light source 114 at every turn, use above-mentioned replacing method not only quite time-consuming, easier in taking out the process of display panel 111, blooming 112 and diffuser plate 113, because of friction or get to put and improperly cause display panel 111, blooming 112 or diffuser plate 113 to be subjected to scratch to damage.

(3) summary of the invention

In view of this, purpose of the present invention just provides a kind of LCD, upper ledge based on backlight assembly, utilize fastener and by the snapping effect between the fastener, with preceding frame, display panel, upper ledge, blooming and the diffuser plate structure that is combined as a whole, can make things convenient for the user directly to change light source.In addition, between frame and the upper ledge, blooming then was fixed between upper ledge and the diffuser plate before display panel was fixed in, when changing light source, because of not needing to take out respectively display panel, blooming and diffuser plate, can avoid display panel, blooming and diffuser plate scratch and the phenomenon of damaging.

For realizing purpose of the present invention, a kind of LCD according to an aspect of the present invention comprises a preceding frame, a upper ledge one diffuser plate, a display panel and a blooming.Preceding frame has one first by fastener.Upper ledge is frame below before being disposed at.Diffuser plate has one second by fastener, and diffuser plate is frame below before being disposed at.Wherein, upper ledge has one and corresponds to first by first fastener of fastener, and one correspond to second by second fastener of fastener, and first fastener can be with first chimeric mutually by fastener, and second fastener can be with second chimeric mutually by fastener.Display panel is to be disposed between this preceding frame and this upper ledge, and when this first fastener and this first during by the fastener snapping, this display panel is fixed between this preceding frame and this upper ledge.Blooming is to be disposed between this preceding frame and this diffuser plate, and when this second fastener and this second during by the fastener snapping, this blooming then is fixed between this preceding frame and this diffuser plate.

For realizing purpose of the present invention, a kind of LCD according to a further aspect of the invention comprises a preceding frame, a upper ledge, a diffuser plate, a display panel and a blooming.Before frame have frame lower surface before, before frame side and one first by fastener, preceding frame side is to intersect vertically with preceding frame lower surface, preceding frame lower surface is relative with the upper ledge upper surface, first is to be formed on the preceding frame side by fastener.One upper ledge is frame below before being disposed at, have a upper ledge upper surface, a upper ledge lower surface, a upper ledge side extension, one first fastener and one second fastener, upper ledge side extension is to intersect vertically with the upper ledge lower surface, and first fastener is to be disposed at upper ledge side extension and second fastener is to be disposed on the upper ledge lower surface.Diffuser plate has a diffuser plate upper surface and one second by fastener, and diffuser plate is to be disposed at upper ledge below, and the diffuser plate upper surface is relative with the upper ledge lower surface, and second is to be formed on the diffuser plate upper surface by fastener.Display panel is to be disposed between this preceding frame and this upper ledge, and when this first fastener and this first during by the fastener snapping, this display panel is fixed between this preceding frame and this upper ledge.Blooming is to be disposed between this preceding frame and this diffuser plate, and when this second fastener and this second during by the fastener snapping, this blooming then is fixed between this preceding frame and this diffuser plate.Upper ledge has more a upper ledge edge and a upper ledge inner edge, the upper ledge inner edge is the inboard that is positioned at the upper ledge edge, first fastener is to be disposed at the upper ledge edge and second fastener is to be disposed at the upper ledge inner edge, first fastener and second fastener can be simultaneously respectively with first by fastener and second by the fastener snapping, frame, display panel, upper ledge, blooming and diffuser plate are combined as a whole before making.

For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.

(4) description of drawings

Fig. 1 is the decomposing schematic representation of traditional part LCD.

Fig. 2 is the decomposing schematic representation according to the part LCD of preferred embodiment of the present invention.

Fig. 3 is among Fig. 2 behind upper ledge and the diffuser plate snapping and inverted synoptic diagram.

Fig. 4 is the enlarged drawing of the regional A of Fig. 3.

(5) embodiment

The special design of the present invention one LCD allows the user as long as after the taking-up snapping is holistic preceding frame, display panel, upper ledge, blooming and diffuser plate, can directly change light source, and is quite convenient.Even, more can further avoid assemblies such as display panel, blooming and diffuser plate in the replacing process, to be produced the phenomenon of damage by scratch.

Please refer to Fig. 2, it is the decomposing schematic representation according to the part LCD of preferred embodiment of the present invention.Frame (bezel) 210, a display panel 211 and a direct type backlight assembly 220 before LCD 200 includes one at least.Backlight assembly 220 comprises a upper ledge (frame) 230, multi-layer optical film 212, diffuser plate 213, several light sources 214 and in order to the lamp socket (lamp holder) 215 of carrying light source 214.Disposing a plurality of light sources arranged side by side 214 in lamp socket 215, for example is that (Cold CathodeFluorescent Lamp CCFL), shows needed light in order to display panel 211 to be provided to cold-cathode tube.

But upper ledge 230 is the modes with snapping be disposed at before between frame 210 and the diffuser plate 213, display panel 211 is between preceding frame 210 and upper ledge 230, and blooming 212 is between upper ledge 230 and diffuser plate 213.Light by light source 214 is launched by the diffusion of diffuser plate 213, evenly disperses light, passes through multi-layer optical film 212 again, at last the picture of display of visually on display panel 211.

Preceding frame 210 is frame side 210c before frame upper surface 210a before having, the preceding frame lower surface 210b and.Preceding frame side 210c intersects vertically with preceding frame lower surface 210b, and preceding frame lower surface 210b is relative with upper ledge upper surface 210a.By fastener 2108 is to be formed on the preceding frame side 210c, for example is the opening on the preceding frame side 210c.Simultaneously, upper ledge 230 has a upper ledge upper surface 230a, a upper ledge lower surface 230b and a upper ledge side extension 230c.Upper ledge side extension 230c intersects vertically with upper ledge lower surface 230b.Correspond to by fastener 2108, the fastener 2308 that for example is trip is to be disposed at upper ledge side extension 230c.

Upper ledge 230 has a upper ledge edge 230d and a upper ledge inner edge 230e, and upper ledge inner edge 230e is the inboard that is positioned at upper ledge edge 230d.Fastener 2308 is to be disposed at upper ledge edge 230d and fastener 2309 is to be disposed at upper ledge inner edge 230e.By chimeric mutually by fastener 2108 and fastener 2308, upper ledge 230 is snapped together with preceding frame 210.And for example be that the fastener 2309 of trip is to be disposed at upper ledge lower surface 230b.

Diffuser plate 213 has a diffuser plate upper surface 213a, and diffuser plate upper surface 213a is relative with upper ledge lower surface 230b.Corresponding to for example is the fastener 2309 of trip, is to be formed on the diffuser plate upper surface 213a by fastener 2139, for example is the opening on the diffuser plate upper surface 213a.Please be simultaneously with reference to Fig. 3 and Fig. 4, Fig. 3 is an inverted synoptic diagram also behind upper ledge and the diffuser plate snapping among Fig. 2, and Fig. 4 is the enlarged drawing of the regional A of Fig. 3.By chimeric mutually by fastener 2139 and fastener 2309, then upper ledge 230 is snapped together with diffuser plate 213.Like this,

fastener

2308 and 2309 can be simultaneously respectively with 2108 and 2139 snappings, frame 210, display panel 211, upper ledge 230, blooming 212 are combined as a whole with diffuser plate 213 before making.

When assembling LCD 200, upper ledge 230 based on backlight assembly 220, at first, after being placed in blooming 212 between upper ledge 230 and the diffuser plate 213 earlier, snapping upper ledge 230 and diffuser plate 213, then, display panel 211 is placed between upper ledge 230 and the preceding frame 210 again, carries out snapping upper ledge 230 and preceding frame 210 again.Because in the upper ledge 230, the side that disposes fastener 2308 be with the lower surface that disposes fastener 2309 be to intersect vertically mutually, so can utilize fastener 2308 with by fastener 2108 chimeric snapping each other, and fastener 2309 with by fastener 2139 chimeric snapping each other, and preceding frame 210, display panel 211, upper ledge 230, blooming 212 are combined as a whole with diffuser plate 213.So, when the user need change light source 214 in the backlight assembly 200, as long as the preceding frame 210 that will be combined as a whole, display panel 211, upper ledge 230, blooming 212 are after diffuser plate 213 directly takes out, promptly replaceable light source 214.Therefore, could change the design of light source 114 before saving tradition and must taking out respectively behind frame 110, display panel 111, upper ledge 130, blooming 112 and the diffuser plate 113, make the substitute mode of light source easy to be many, and shorten the replacing time relatively.

In addition, when on the fastener 2308 of upper ledge 230 and the preceding frame 210 by fastener 2108 snappings the time, display panel 211 before placing between frame 210 and the upper ledge 230 just is fixed between the two, and when on the fastener 2309 of upper ledge 230 and the diffuser plate 213 by fastener 2139 snappings the time, the blooming 212 before placing between frame 210 and the diffuser plate 213 just is fixed between the two.Like this, can avoid display panel 211, blooming 212 and diffuser plate 213 in the process of taking out or inserting again, to be produced the phenomenon of damage by scratch.

Wherein, upper ledge 230 its materials for example are plastics, utilize the board ejection formation.And preceding frame 210 and diffuser plate 213 by fastener 2108 and 2139 and the

fastener

2308 and 2309 of upper ledge 230 be not defined as a certain form, as long as fastener 2308 and by between the fastener 2108, and fastener 2309 and can be reached chimeric purpose between the fastener 2139 each other and get final product.

In present embodiment, before frame 210 and diffuser plate 213 can be respectively preceding frame 210 by fastener 2108 and 2139 with diffuser plate 213 on opening, and the fastener 2308 of

upper ledge

230 and 2309 is a trip, and that utilizes trip and opening combines frame 210 before the snapping, display panel 211, upper ledge 230, blooming 212 and diffuser plate 213.Moreover, the

fastener

2308,2309 of upper ledge 230 and preceding frame 210 and diffuser plate 213 by the snapping mode between the fastener 2108,2139 except that the combining of the trip of said fixing position and opening, also can adopt slideable snapping assembly.

In addition, any snapping mode that person skilled in the art person understood all can be applied on preceding frame 210 of the present invention, upper ledge 230 and the diffuser plate 213, to reach the effect of mutual snapping.For example, frame lower surface 210b before also can being formed at of preceding frame 210 by fastener 2108; Diffuser plate 213 also can have side or side extension, and also can be formed at by fastener 2139 on the side or side extension of diffuser plate 213; Fastener 2308 is formed at respectively upper ledge outer rim 230d and the upper ledge inner edge 230e except shown in the drawings with fastener 2309, fastener 2308 also can be formed at the upper ledge inner edge on the upper ledge upper surface 230a and extend upward, and fastener 2309 then also can be formed at the upper ledge outer rim on the upper ledge lower surface 230b and extend downwards.

Though the present invention describes with reference to current specific embodiment, but those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, should understand and wherein can make variations and modifications and do not break away from the present invention in a broad sense, so be not as limitation of the invention, as long as in connotation scope of the present invention, all will drop in the scope of claims of the present invention variation, the distortion of the above embodiment.

Claims

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

a front frame with a first fastened part;

an upper frame, arranged under the front frame;

a diffuser plate with a second fastener, the diffuser plate is disposed under the upper frame; and

A display panel is disposed between the front frame and the upper frame, and when the first fastening member is fastened with the first fastened member, the display panel is fixed between the front frame and the upper frame;

An optical film is disposed between the front frame and the diffuser plate, and when the second fastening member is fastened with the second fastened member, the optical film is fixed between the front frame and the diffuser plate ;

Wherein, the upper frame has a first fastening part corresponding to the first fastened part and a second fastening part corresponding to the second fastened part, and the first fastening part can be connected with the first fastened part. The fastened parts are fitted with each other, and the second fastened part can be fitted with the second fastened part.

2. The liquid crystal display as claimed in claim 1, characterized in that

The upper frame has an upper surface of the upper frame, a lower surface of the upper frame and a side extension of the upper frame, the side extension of the upper frame is perpendicular to the lower surface of the upper frame, and the first fastener is arranged on the upper the side extension of the frame, and the second buckle is configured on the lower surface of the upper frame;

The front frame has a front frame lower surface and a front frame side, the front frame side is perpendicular to the front frame lower surface, the front frame lower surface is opposite to the upper frame upper surface, and the first fastener is formed on the side of the front frame; and

The diffuser plate has an upper surface of the diffuser plate, the upper surface of the diffuser plate is opposite to the lower surface of the upper frame, and the second fastened part is formed on the upper surface of the diffuser plate. It is characterized in that the first buckle The part and the second fastening part can be respectively fastened with the first fastened part and the second fastened part at the same time, so that the front frame, the display panel, the upper frame, the optical film and the diffuser plate are combined into one One.

3. The liquid crystal display as claimed in claim 1, wherein the upper frame has an upper frame edge and an upper frame inner edge, the upper frame inner edge is located on the inner side of the upper frame edge, and the first fastening member It is arranged on the edge of the upper frame and the second buckle is arranged on the inner edge of the upper frame.

4. The liquid crystal display as claimed in claim 3, wherein the front frame has a front frame lower surface and a front frame side, the front frame side is perpendicular to the front frame lower surface, and the front frame lower surface is Opposite to the upper surface of the upper frame, the first fastener is formed on the side of the front frame; the diffuser plate has an upper surface of the diffuser plate, the upper surface of the diffuser plate is opposite to the lower surface of the upper frame, and the first The two fasteners are formed on the lower surface of the upper frame.

5. The liquid crystal display as claimed in claim 1, wherein the first fastened part and the second fastened part are openings.

6. The liquid crystal display as claimed in claim 1, wherein the first fastening part and the second fastening part are tenons.

7. The liquid crystal display as claimed in claim 1, wherein the upper frame is made of plastic.

8. The liquid crystal display as claimed in claim 1, wherein the upper frame is injection molded by a machine.

9. The liquid crystal display as claimed in claim 1, wherein the first fastening member and the second fastening member are slidably disposed on the upper frame.

10. The liquid crystal display as claimed in claim 1, wherein the display panel is a liquid crystal display panel.

11. A liquid crystal display, characterized in that it comprises:

A front frame has a front frame lower surface, a front frame side and a first fastener, the front frame side is perpendicular to the front frame lower surface, and the front frame lower surface is opposite to the upper frame upper surface , the first fastener is formed on the side of the front frame;

An upper frame is disposed below the front frame and has an upper surface of the upper frame, a lower surface of the upper frame, a side extension of the upper frame, a first fastening piece and a second fastening piece, the side of the upper frame The extension part is perpendicular to the lower surface of the upper frame, the first fastener is configured on the side extension of the upper frame and the second fastener is configured on the lower surface of the upper frame; and

A diffuser plate has an upper surface of the diffuser plate and a second fastened part, the diffuser plate is arranged under the upper frame, the upper surface of the diffuser plate is opposite to the lower surface of the upper frame, and the second fastened part is formed on the upper surface of the diffuser plate;

Wherein, the upper frame further has an upper frame edge and an upper frame inner edge, the upper frame inner edge is located on the inner side of the upper frame edge, the first buckle is configured on the upper frame edge and the second buckle The connecting piece is arranged on the inner edge of the upper frame, and the first fastening piece and the second fastening piece can be fastened with the first fastened piece and the second fastened piece respectively at the same time, so that the front frame, the The display panel, the upper frame, the optical film and the diffusion plate are combined into one body.

12. The liquid crystal display as claimed in claim 11, wherein the first fastened part and the second fastened part are openings.

13. The liquid crystal display as claimed in claim 11, wherein the first fastening part and the second fastening part are tenons.

14. The liquid crystal display as claimed in claim 11, wherein the upper frame is made of plastic.

15. The liquid crystal display as claimed in claim 11, wherein the upper frame is injection molded by a machine.

16. The liquid crystal display as claimed in claim 11, wherein the first fastening member and the second fastening member are slidably disposed on the upper frame.

17. The liquid crystal display as claimed in claim 11, wherein the display panel is a liquid crystal display panel.