CN1971374A - LCD device - Google Patents
LCD device Download PDFInfo
- Publication number
- CN1971374A CN1971374A CN 200510101772 CN200510101772A CN1971374A CN 1971374 A CN1971374 A CN 1971374A CN 200510101772 CN200510101772 CN 200510101772 CN 200510101772 A CN200510101772 A CN 200510101772A CN 1971374 A CN1971374 A CN 1971374A
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- liquid crystal
- crystal indicator
- frame body
- conducting layer
- lower frame
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Abstract
The invention relates to a liquid crystal display device that comprises a liquid crystal display panel, a backlight module pattern assembly and a lower frame. The liquid crystal display panel includes an upper glass base plate, a liquid crystal layer, a lower glass base plate and a transparent conducting layer which are arranged orderly. The lower frame includes many contacting units. The backlight module pattern assembly is mounted in the lower frame, the liquid crystal display panel is located above the backlight module pattern assembly, and the marginal portion of the transparent conducting layer electric connected with many contacting units. The liquid crystal display device in the invention possesses the function of electromagnetic interference shielding.
Description
[technical field]
The present invention relates to a kind of liquid crystal indicator.
[background technology]
Liquid crystal indicator (Liquid Crystal Display, LCD) the self luminous display of right and wrong, unlike cathode-ray tube (CRT) (Cathode Ray Tude, CRT) and plasma display (Plasma Panel Display, PDP) can be luminous voluntarily, LCD need utilize other light source as illumination.
LCD display has three kinds of display modes: reflective, Transflective and transmission-type.Reflective liquid crystal indicator utilizes surround lighting to inject in the LCD panel, light is reflexed in people's the eye by reflecting plate again; The Transflective liquid crystal indicator both can utilize surround lighting as light source, also can realize showing by built-in light source luminescent; The liquid crystal indicator of transmission-type is realized showing by built-in light source light fully.
The light source of common transmission liquid crystal display device is positioned at the rear portion of liquid crystal indicator, be called module backlight (Back Light Module, BL).As shown in Figure 1, a kind of prior art liquid crystal indicator 100 comprises a display panels 110, one module 130 backlight, a lower frame body 150 and a upper frame body 170.This display panels 110 comprise be arranged in order one on polaroid 111, a top glass substrate 112, a liquid crystal layer 113, a lower glass substrate 114 and polaroid 116 once.This module 130 backlight comprises a fluorescent tube 132, a light guide plate 134, two diffusion sheets 136 and prismatic lenses 138.It is as a whole with this 130 one-tenth of module backlight that this upper frame body 170 cooperates this lower frame body 150 to be used for fixing this display panels 110.The light that fluorescent tube 132 penetrates penetrates through these light guide plate 134 guiding backs, pass through these prismatic lens 138 optically focused and these two diffusion sheet 136 scatterings then after, evenly pass this display panels 110.
Wherein, (Cold Cathode Fluorescent Lamp CCFL) provides light source to the cold cathode ray fluorescent tube of the fluorescent tube 121 main employing low-pressure mercury fluorescent light designs of this module 120 backlight.The voltage that drives this cold cathode ray fluorescent tube is near one kilovolt, and frequency of operation is more than KHz.High-frequency high voltage is easy to generate electromagnetic wave, and it disturbs the normal demonstration of liquid crystal indicator 100 and produce and shows flicker or water ripple phenomenon.
[summary of the invention]
In order to solve the problem that liquid crystal indicator in the prior art is subjected to electromagnetic interference (EMI), be necessary to provide a kind of liquid crystal indicator of shield electromagnetic interference.
A kind of liquid crystal indicator, it comprises a display panels, a module backlight and a lower frame body.This display panels comprises a top glass substrate, a liquid crystal layer, a lower glass substrate and a transparency conducting layer that is arranged in order.This lower frame body comprises a plurality of osculating elements.This module backlight is placed son in this lower frame body, and this display panels is positioned at module backlight top, and the marginal portion of this transparency conducting layer of this display panels is electrically connected these a plurality of osculating elements.
Compare with prior art, this lower frame body constitutes a closed space of conducting electricity by a plurality of osculating elements and this transparency conducting layer in the above-mentioned liquid crystal indicator, in should module backlight being enclosed in.Therefore, this liquid crystal indicator has the shield electromagnetic interference function.
[description of drawings]
Fig. 1 is the synoptic diagram of a kind of liquid crystal indicator of prior art.
Fig. 2 is the synoptic diagram of liquid crystal indicator first embodiment of the present invention.
Fig. 3 is the structural representation of the lower frame body of liquid crystal indicator shown in Figure 2.
Fig. 4 is the lower frame body structural representation of liquid crystal indicator second embodiment of the present invention.
[embodiment]
Seeing also Fig. 2, is the synoptic diagram of liquid crystal indicator first embodiment of the present invention.This liquid crystal indicator 200 comprises a display panels 210, one module 230 backlight, a lower frame body 250 and a upper frame body 270.This display panels 210 comprise be arranged in order one on polaroid 211, a top glass substrate 212, a liquid crystal layer 213, a lower glass substrate 214, a transparency conducting layer 215 and polaroid 216 once.This module 230 backlight comprises a fluorescent tube 232, a light guide plate 234 and two diffusion sheets 236 and a prismatic lens 238.This lower frame body 250 comprises a plurality of osculating elements 252.This module 230 backlight is positioned in this lower frame body 250.This display panels 210 is positioned at module backlight 230 tops, and the marginal portion of the transparency conducting layer 215 of this display panels 210 is electrically connected a plurality of osculating elements 252 of this lower frame body 250.It is as a whole with this 230 one-tenth of module backlight that this upper frame body 270 cooperates this lower frame body 250 to be used for fixing this display panels 210.
Wherein, this upper frame body 270 and this lower frame body 250 can be made of metal materials such as aluminium alloy or ferroalloys, and these a plurality of osculating elements 252 as shown in Figure 3, are by the inwardly folding a plurality of contact chips that constitute in the marginal portion of this lower frame body 250.This transparency conducting layer 215 is indium oxide layer tin layer or indium oxide layer zinc layers of electroplating on these lower glass substrate 214 lower surfaces, and the thickness of this transparency conducting layer 215 preferably is controlled in the 0.2mm, in order to avoid influence the light utilization efficiency of this liquid crystal indicator.This fluorescent tube 232 is cold cathode ray fluorescent tubes of low-pressure mercury fluorescent light design.
Compared to prior art, this lower frame body 250 constitutes a conduction space by a plurality of osculating elements 252 and this transparency conducting layer 215 in the above-mentioned liquid crystal indicator 200, in should module backlight being enclosed in.Therefore, this liquid crystal indicator 200 has the function of shield electromagnetic interference.
Seeing also Fig. 4, is the lower frame body structural representation of liquid crystal indicator second embodiment of the present invention.The difference of this liquid crystal indicator and this first embodiment liquid crystal indicator 200 is: these a plurality of osculating elements 452, as shown in Figure 4, be by inwardly folding four contact chips that constitute in the marginal portion of this lower frame body 450, this lower frame body 450 can constitute the space of a complete closed with this transparency conducting layer 250 by these four contact chips, in should module backlight being completely enclosed within.
Claims (10)
1. liquid crystal indicator comprises:
One display panels, this display panels comprise a top glass substrate, a liquid crystal layer, a lower glass substrate that is arranged in order;
One module backlight, this module backlight provides light source for this display panels;
One lower frame body is used for placing this module backlight;
It is characterized in that: this display panels further comprises a transparency conducting layer, and this transparency conducting layer is positioned at the lower surface of this lower glass substrate, and this lower frame body comprises a plurality of osculating elements, and these a plurality of osculating elements are electrically connected with the marginal portion of this transparency conducting layer.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: these a plurality of osculating elements are a plurality of contact chips.
3. liquid crystal indicator as claimed in claim 1 is characterized in that: these a plurality of osculating elements are four contact chips, and this lower frame body and this transparency conducting layer constitute a closed space, and this module backlight is positioned within this closed space.
4. liquid crystal indicator as claimed in claim 3 is characterized in that: this liquid crystal indicator further comprises a upper frame body, this upper frame body cooperate with this lower frame body be used for fixing this display panels and should be backlight mould composition as a whole.
5. liquid crystal indicator as claimed in claim 4 is characterized in that: this upper frame body and lower frame body are made of aluminum alloy materials.
6. liquid crystal indicator as claimed in claim 4 is characterized in that: this upper frame body and lower frame body are made of ferroalloy materials.
7. liquid crystal indicator as claimed in claim 1 is characterized in that: this transparency conducting layer is an indium tin oxide layer.
8. liquid crystal indicator as claimed in claim 1 is characterized in that: this transparency conducting layer is an indium zinc oxide layer.
9. liquid crystal indicator as claimed in claim 1 is characterized in that: the thickness of this transparency conducting layer is less than 0.2mm.
10. liquid crystal indicator as claimed in claim 1 is characterized in that: this liquid crystal indicator further comprises on one polaroid and polaroid once, and polaroid is positioned at the top of this top glass substrate on this, and this time polaroid is positioned at the below of this transparency conducting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510101772 CN1971374A (en) | 2005-11-25 | 2005-11-25 | LCD device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510101772 CN1971374A (en) | 2005-11-25 | 2005-11-25 | LCD device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1971374A true CN1971374A (en) | 2007-05-30 |
Family
ID=38112267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510101772 Pending CN1971374A (en) | 2005-11-25 | 2005-11-25 | LCD device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1971374A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104090412A (en) * | 2014-06-20 | 2014-10-08 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| CN104110611A (en) * | 2014-06-25 | 2014-10-22 | 京东方科技集团股份有限公司 | Backlight module and display device |
| US8902378B2 (en) | 2009-07-09 | 2014-12-02 | Lg Display Co., Ltd. | Liquid crystal display device |
| CN106557193A (en) * | 2015-09-30 | 2017-04-05 | 南昌欧菲光科技有限公司 | Touch display unit |
-
2005
- 2005-11-25 CN CN 200510101772 patent/CN1971374A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8902378B2 (en) | 2009-07-09 | 2014-12-02 | Lg Display Co., Ltd. | Liquid crystal display device |
| CN104090412A (en) * | 2014-06-20 | 2014-10-08 | 京东方科技集团股份有限公司 | Liquid crystal display device |
| CN104090412B (en) * | 2014-06-20 | 2017-04-05 | 京东方科技集团股份有限公司 | A kind of liquid crystal indicator |
| US9651820B2 (en) | 2014-06-20 | 2017-05-16 | Boe Technology Group Co., Ltd. | Liquid crystal display apparatus comprising a polaroid and a polarization analyzer having a transparent plate with a quadrangle structure |
| CN104110611A (en) * | 2014-06-25 | 2014-10-22 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN106557193A (en) * | 2015-09-30 | 2017-04-05 | 南昌欧菲光科技有限公司 | Touch display unit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |