CN101178507A - LCD device - Google Patents
LCD device Download PDFInfo
- Publication number
- CN101178507A CN101178507A CNA200610148438XA CN200610148438A CN101178507A CN 101178507 A CN101178507 A CN 101178507A CN A200610148438X A CNA200610148438X A CN A200610148438XA CN 200610148438 A CN200610148438 A CN 200610148438A CN 101178507 A CN101178507 A CN 101178507A
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- lcd
- guide plate
- disposed
- light guide
- backboard
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Abstract
The invention discloses an LCD, which comprises a backlight component, a liquid crystal faceplate, a front frame and a light bar. The backlight component comprises a back board and a light guide plate, wherein, the back board is provided with a plurality of side walls and an opening, and the opening faces one of the side walls. The light guide plate is arranged in the back board and is fit for entering and coming out the back board through the opening. The light guide plate is provided with a light inlet surface, and the opening is exposed at the light inlet surface. The liquid crystal faceplate is arranged on the back board of the backlight component, and the front frame is assembled with the back board to fix the liquid crystal faceplate. The light bar is arranged on the inner wall of the front frame and positioned between the front frame and the light inlet surface of the light guide plate. Therefore, the heat produced by the lamp bar can be transmitted to the front frame to improve the luminous efficiency of the lamp bar.
Description
Technical field
The present invention is relevant for a kind of display, and is particularly to a kind of LCD.
Background technology
Because the demand of display and day sharp increase, so industry drops into the development of related display with all strength.Wherein, again with cathode-ray tube (CRT) (Cathode Ray Tube) because of having excellent display quality and technology maturation, so monopolize the monitor market all the year round.Yet, recently since the rise of environmental protection notion for its energy resource consumption big with produce the bigger characteristic of radiant quantity, add that product flattening space is limited, therefore can't satisfy the market trend of market for light, thin, short, little, U.S. and low consumpting power.Therefore, have that high image quality, space utilization efficient are good, (Thin Film TransistorLiquid Crystal Display TFT-LCD) becomes the market mainstream to the Thin Film Transistor-LCD of low consumpting power, advantageous characteristic such as radiationless gradually.
With tft liquid crystal display module (TFT-LCD module), it is made of a display panels (liquid crystal display Panel) and a backlight assembly (backlight module).Wherein, display panels normally is made of a thin-film transistor array base-plate (thin film transistor arraysubstrate), a colored optical filtering substrates (color filter substrate) and a liquid crystal layer that is disposed between this two substrates, and backlight assembly is in order to provide this display panels required area source, so that LCD assembly reaches the effect of demonstration.
Figure 1A is a kind of vertical view of existing backlight assembly, and Figure 1B then is the sectional view of the existing backlight assembly of Figure 1A.Please refer to Figure 1A and Figure 1B, existing backlight assembly 100 comprises a backboard 110, a light guide plate (Light Guide Plate, LGP) 120, one flexible circuit board (Flexible Printed Circuit, FPC) 130, a plurality of light emitting diode (Light Emitting Diode, LED) 140, one reflector plate 150, several layers of blooming piece 160 and glue frame 170.Wherein, light guide plate 120 is disposed on the backboard 110, and reflector plate 150 is disposed between light guide plate 120 and the backboard 110.Light emitting diode 140 is disposed on the flexible circuit board 130, and it is other to be positioned at light guide plate 120.In addition, glue frame 170 is disposed on the backboard 110, and blooming piece 160 is disposed between glue frame 170 and the light guide plate 120.
Because light emitting diode 140 can produce heat energy when running, and the luminescence efficiency of the high more light emitting diode 140 of temperature just can descend, therefore increase along with this kind adopts the size of the existing backlight assembly 100 of light emitting diode 140, heat radiation requires also just to become the emphasis of design.In addition, because the heat-conduction coefficient of glue frame 170 is lower, also cause light emitting diode 140 heat energy that produces to be difficult for conducting to the external world.
Summary of the invention
The purpose of this invention is to provide a kind of LCD, to improve radiating efficiency.
For reaching above-mentioned or other purposes, the present invention proposes a kind of LCD, and it comprises a backlight assembly, a display panels, a preceding frame and a lamp bar.Backlight assembly comprises a backboard and a light guide plate, and its dorsulum has a plurality of sidewalls and an opening, and opening and these sidewalls one of them face mutually.Light guide plate is disposed in the backboard, and light guide plate is suitable for via opening turnover backboard.Light guide plate has an incidence surface, and opening exposes incidence surface.Display panels is disposed on the backboard of backlight assembly, and preceding frame and backboard assembling, with the immobile liquid LCD panel.The lamp bar is disposed on the inwall of preceding frame, and between the incidence surface of preceding frame and light guide plate.
In an embodiment of the present invention, the lamp bar comprises a carrier and a plurality of pointolites that are disposed on the carrier.
In an embodiment of the present invention, LCD also comprises a heat dissipating layer, and it is disposed between preceding frame and the lamp bar.
In an embodiment of the present invention, the top of these sidewalls is L shaped for being bent into, to support display panels.
In an embodiment of the present invention, backlight assembly also comprises a buffer bar, and it is disposed between display panels and the light guide plate.
In an embodiment of the present invention, backlight assembly also comprises a reflector plate, and it is disposed between buffer bar and the light guide plate.
In an embodiment of the present invention, preceding frame is L shaped for being bent near the top of the sidewall of incidence surface.
In an embodiment of the present invention, backlight assembly also comprises a plurality of fixed blocks, and it is disposed at the corner of backboard.
In an embodiment of the present invention, these pointolites for example be light emitting diode (Light Emitting Diode, LED) or Organic Light Emitting Diode (Organic Light Emitting Diode, OLED).
In an embodiment of the present invention, the material of preceding frame comprises metal.
Based on above-mentioned, because the present invention combines the lamp bar with preceding frame, so the heat that the lamp bar is produced can conduct to the external world via preceding frame, and is too high and influence the luminescence efficiency of lamp bar with the temperature of avoiding the part.In addition, adopt the glue frame compared to prior art, to support display panels, the present invention directly utilizes backboard, and with the support display panels, so the present invention can economize the cost of the frame that removes photoresist.
For above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and conjunction with figs. is described in detail below.
Description of drawings
Figure 1A is a kind of vertical view of existing backlight assembly.
Figure 1B then is the sectional view of the existing backlight assembly of Figure 1A.
Fig. 2 A is the explosive view of the LCD of one embodiment of the invention.
Fig. 2 B is the sectional view of the LCD of one embodiment of the invention.
Fig. 3 is the explosive view of the backlight assembly of Fig. 2 A.
Fig. 4 is the backlight assembly of Fig. 2 A and the constitutional diagram of display panels.
Fig. 5 is the preceding frame of Fig. 2 A and the constitutional diagram of lamp bar.
Fig. 6 is the preceding frame of Fig. 2 A and the constitutional diagram of backboard.
Embodiment
Fig. 2 A is the explosive view of the LCD of one embodiment of the invention, and Fig. 2 B is the sectional view of the LCD of one embodiment of the invention.Please refer to Fig. 2 A and Fig. 2 B, the LCD 200 of present embodiment comprises a backlight assembly 2100, a display panels 2200, one a preceding frame 2300 and a lamp bar 2400.Relevant for the thin portion structure of each member will describe in detail as after.
Fig. 3 is the explosive view of the backlight assembly of Fig. 2 A.Please refer to Fig. 2 A and Fig. 3, backlight assembly 2100 comprises a backboard 2110 and a light guide plate 2120, and its dorsulum 2110 has a plurality of sidewalls 2112 and an opening 2110a, and opening 2110a is located at one of them opposite of these sidewalls 2112.Light guide plate 2120 is disposed in the backboard 2110, and light guide plate 2120 is suitable for via opening 2110a turnover backboard 2110.In other words, light guide plate 2120 can extract mode and backboard 2110 is finished assembling, so this kind backlight assembly 2100 (rework) aspect heavy industry is comparatively convenient.In addition, light guide plate 2120 has an incidence surface 2120a, and opening 2110a exposes incidence surface 2120a.
In order to improve the optical quality of backlight assembly 2100, backlight assembly 2100 also can comprise at least one first blooming piece 2130 and at least one second blooming piece 2140, wherein first blooming piece 2130 is disposed between backboard 2110 and the light guide plate 2120, and second blooming piece 2140 is disposed between display panels 2200 and the light guide plate 2120.More specifically, first blooming piece 2130 for example is the blooming piece of reflector plate, rhombus lens or other kenels, and second blooming piece 2140 for example is diffusion sheet, brightness enhancement film (Brightness EnhancementFilm, BEF), two brightness enhancement film (Dual Brightness Enhancement Film, DBEF) or the blooming piece of other kenels.In addition, backlight assembly 2100 also can comprise a plurality of fixed blocks 2150, and it is disposed at the corner of backboard 2110.Fixed block 2150 not only can lightguide plate fixing 2120, the position of first blooming piece 2130 and second blooming piece 2140, the more phenomenon that can improve fiduciary level and improve light leak.In addition, the material of fixed block 2150 for example is a rubber.
Fig. 4 is the backlight assembly of Fig. 2 A and the constitutional diagram of display panels.Please refer to Fig. 3 and Fig. 4, display panels 2200 is disposed on the backboard 2110 of backlight assembly 2100.More specifically, the top 2112a of these sidewalls 2112 of backboard 2110 is L shaped for being bent into, to support display panels 2200.In addition, backlight assembly 2100 also comprises a buffer bar 2160, and it is disposed between display panels 2200 and the light guide plate 2110.In the present embodiment, the top 2112a of each sidewall 2112 and the end face of buffer bar 2160 are copline, so that support display panels 2200.In addition, when backlight assembly 2100 comprised second blooming piece 2140, buffer bar 2160 also can be disposed on second blooming piece 2140.In the present embodiment, backlight assembly 2100 also comprises a reflector plate 2170, and it is disposed between buffer bar 2160 and the light guide plate 2120.
Fig. 5 is the preceding frame of Fig. 2 A and the constitutional diagram of lamp bar.Please refer to Fig. 2 B and Fig. 5, lamp bar 2400 is disposed on the inwall of preceding frame 2300, and between the incidence surface 2120a of preceding frame 2300 and light guide plate 2120.In addition, the material of preceding frame 2300 for example is iron, stainless steel or other have the material of high heat-conduction coefficient.In addition, lamp bar 2400 comprises a carrier 2410 and a plurality of pointolites 2420 that are disposed on the carrier 2410.More specifically, carrier 2410 for example be the metallic core printed circuit board (PCB) (metal core printed circuit board, MCPCB), flexible circuit board or other have the carrier of high heat-conduction coefficient.Pointolite 2420 for example is light emitting diode or Organic Light Emitting Diode.In addition, in order to increase radiating efficiency, LCD 200 also comprises a heat dissipating layer 2500, and it is disposed between preceding frame 2300 and the lamp bar 2400.
Fig. 6 is the preceding frame of Fig. 2 A and the constitutional diagram of backboard.Please refer to Fig. 2 B and Fig. 6, preceding frame 2300 and backboard 2110 assemblings are with immobile liquid LCD panel 2200.More specifically, preceding frame 2300 is L shaped for being bent near the top 2300a of the sidewall of incidence surface 2120a, so that assemble with backboard 2110.
In sum, LCD of the present invention has following advantage at least:
One, the present invention is disposed at the lamp bar on the inwall of preceding frame, and preceding frame has the material with high heat-conduction coefficient to constitute (for example iron or stainless steel) usually, therefore the heat that the lamp bar produced can conduct to the external world via preceding frame, and is too high and influence the luminescence efficiency of lamp bar to avoid local temperature.
Two, adopt the glue frame compared to prior art, to support display panels, the present invention directly utilizes backboard, and with the support display panels, so the present invention can economize the cost of the frame that removes photoresist.
Three, because backboard has opening, so that extract out or assembling light guide plate, first blooming piece and second blooming piece, therefore LCD of the present invention is convenient to heavy industry and assembling.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any persond having ordinary knowledge in the technical field of the present invention; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is when with being as the criterion that claim was defined.
Claims (10)
1. LCD comprises:
One backlight assembly comprises:
One backboard has a plurality of sidewalls and an opening, and this opening and those sidewalls one of them face mutually;
One light guide plate be disposed in this backboard, and this light guide plate is suitable for passing in and out this backboard via this opening, and this light guide plate has an incidence surface, and this opening exposes this incidence surface;
One display panels is disposed on this backboard of this backlight assembly;
Frame before one is with this backboard assembling, to fix this display panels; And
One lamp bar is disposed on the inwall of this preceding frame, and between this incidence surface of this preceding frame and this light guide plate.
2. LCD as claimed in claim 1 is characterized in that, this lamp bar comprises a carrier and a plurality of pointolites that are disposed on this carrier.
3. LCD as claimed in claim 1 is characterized in that, also comprises a heat dissipating layer, is disposed between this preceding frame and this lamp bar.
4. LCD as claimed in claim 1 is characterized in that the top of those sidewalls is L shaped for being bent into, to support this display panels.
5. LCD as claimed in claim 1 is characterized in that this backlight assembly also comprises a buffer bar, is disposed between this display panels and this light guide plate.
6. LCD as claimed in claim 5 is characterized in that this backlight assembly also comprises a reflector plate, is disposed between this buffer bar and this light guide plate.
7. LCD as claimed in claim 1 is characterized in that, this preceding frame is L shaped for being bent near the top of the sidewall of this incidence surface.
8. LCD as claimed in claim 1 is characterized in that this backlight assembly also comprises a plurality of fixed blocks, is disposed at the corner of this backboard.
9. LCD as claimed in claim 1 is characterized in that those pointolites comprise light emitting diode or Organic Light Emitting Diode.
10. LCD as claimed in claim 1 is characterized in that the material of this preceding frame comprises metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610148438XA CN101178507A (en) | 2006-11-09 | 2006-11-09 | LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610148438XA CN101178507A (en) | 2006-11-09 | 2006-11-09 | LCD device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101178507A true CN101178507A (en) | 2008-05-14 |
Family
ID=39404817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610148438XA Pending CN101178507A (en) | 2006-11-09 | 2006-11-09 | LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101178507A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650749A (en) * | 2011-02-25 | 2012-08-29 | 群康科技(深圳)有限公司 | Display module and displayer with same |
| WO2013143128A1 (en) * | 2012-03-27 | 2013-10-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using the backlight module |
| WO2013143154A1 (en) * | 2012-03-27 | 2013-10-03 | 深圳市华星光电技术有限公司 | External frame of display device, backlight module, and liquid crystal display device |
| US9104068B2 (en) | 2012-03-27 | 2015-08-11 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device comprising backlight module |
| CN107870478A (en) * | 2016-09-22 | 2018-04-03 | 乐金显示有限公司 | Liquid crystal display |
| WO2019134198A1 (en) * | 2018-01-04 | 2019-07-11 | 惠州市华星光电技术有限公司 | Backplate, backlight module, and liquid crystal display device |
-
2006
- 2006-11-09 CN CNA200610148438XA patent/CN101178507A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102650749A (en) * | 2011-02-25 | 2012-08-29 | 群康科技(深圳)有限公司 | Display module and displayer with same |
| CN102650749B (en) * | 2011-02-25 | 2015-07-15 | 群康科技(深圳)有限公司 | Display module and displayer with same |
| WO2013143128A1 (en) * | 2012-03-27 | 2013-10-03 | 深圳市华星光电技术有限公司 | Backlight module and liquid crystal display device using the backlight module |
| WO2013143154A1 (en) * | 2012-03-27 | 2013-10-03 | 深圳市华星光电技术有限公司 | External frame of display device, backlight module, and liquid crystal display device |
| US8836885B2 (en) | 2012-03-27 | 2014-09-16 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Outer frame of display device, backlight module and LCD device |
| US9104068B2 (en) | 2012-03-27 | 2015-08-11 | Shenzhen China Star Optoelectronics Technology Co., Ltd. | Backlight module and LCD device comprising backlight module |
| CN107870478A (en) * | 2016-09-22 | 2018-04-03 | 乐金显示有限公司 | Liquid crystal display |
| CN107870478B (en) * | 2016-09-22 | 2020-11-20 | 乐金显示有限公司 | Liquid crystal display device with a light guide plate |
| WO2019134198A1 (en) * | 2018-01-04 | 2019-07-11 | 惠州市华星光电技术有限公司 | Backplate, backlight module, and liquid crystal display device |
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Open date: 20080514 |