CN2777593Y - Liquid crystal display device - Google Patents
Liquid crystal display device Download PDFInfo
- Publication number
- CN2777593Y CN2777593Y CN 200520054792 CN200520054792U CN2777593Y CN 2777593 Y CN2777593 Y CN 2777593Y CN 200520054792 CN200520054792 CN 200520054792 CN 200520054792 U CN200520054792 U CN 200520054792U CN 2777593 Y CN2777593 Y CN 2777593Y
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- CN
- China
- Prior art keywords
- liquid crystal
- crystal indicator
- film
- crystal panel
- drive unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a liquid crystal display device which has two operating states, a penetration type and a reflection type. The liquid crystal display device comprises a liquid crystal panel, a converting device and a backlight module set, wherein the liquid crystal panel comprises a first polaroid and a liquid crystal layer, and the converting device comprises a driving device, a penetration thin film and a reflection thin film which are arranged on the driving device. When the liquid crystal display device is at a penetration operating state, the penetration thin film is arranged between the backlight module set and the liquid crystal panel by the start-up of the driving device. When the liquid crystal display device is at a reflection operating state, the reflection thin film is adjacent to the liquid crystal panel in order to reflect ambient light by the start-up of the driving device.
Description
[technical field]
The utility model relates to a kind of liquid crystal indicator.
[background technology]
Liquid crystal indicator can be divided into penetration liquid crystal display device and reflective LCD device according to the difference of its light source that utilizes.Penetration liquid crystal display device is provided with a module backlight usually so that illumination to be provided at the liquid crystal panel back side, because module backlight power consumption is bigger, so cause the penetration liquid crystal display device power consumption bigger.Reflective LCD device then utilizes surround lighting that illumination is provided, so its power consumption is less, but its display quality meeting variation when surround lighting is more weak, so its usable range is limited.
Please refer to Fig. 1, is the synoptic diagram of a kind of penetration liquid crystal display device in the prior art.This penetration liquid crystal display device 1 comprises a upper substrate 110, one infrabasal plates 130 and the liquid crystal layer between two substrates 120.Polaroid 100 and polaroid 140 once lay respectively at the both sides up and down of upper substrate 110 and infrabasal plate 130 on one, and a module backlight 150 that is made of light source 152 and light guide plate 151 is positioned at down polaroid 140 belows so that illumination to be provided.
The principle of work of this penetration liquid crystal display device 1 is: the light warp that module 150 backlight sends polaroid 140 down becomes linearly polarized light; When liquid crystal layer 120 was in different orientations under drive controlling, it became different polarization states after providing suitable this linearly polarized light of light path official post by liquid crystal layer 120; Light is incident to polaroid 100 then, the polarization state at corresponding its place, and a part of light appears penetrates polaroid 100 and the formation demonstration.
Because use module 150 backlight, the range of application of penetration liquid crystal display device 1 is wider, but owing to module 150 backlight must be opened under user mode, so its power consumption is higher.
Please refer to Fig. 2, is the synoptic diagram of a kind of reflective LCD device in the prior art.This reflective LCD device 2 comprises a upper substrate 210, one infrabasal plates 230 and the liquid crystal layer between two substrates 220.Polaroid 200 is positioned at upper substrate 210 tops on one, and a quarter-wave plate 260 is positioned at and is arranged on infrabasal plate 230 belows, and a reflecting plate 270 is positioned at the below of quarter-wave plate 260.
The principle of work of this reflective LCD device 2 is: surround lighting becomes linearly polarized light after being incident to polaroid 200; When liquid crystal layer 220 was in different orientations under drive controlling, it provided suitable this linearly polarized light of light path official post to become different polarization states after by liquid crystal layer; Light is incident to quarter-wave plate 260 then, and sheet 270 reflection and once more by quarter-wave plate 260 of being reflected; Subsequently once more by liquid crystal layer 220 and become different polarization states; Light is incident to polaroid 200 then, the polarization state at corresponding its place, and the light of a special ratios transmits polaroid 200 and forms demonstration.Wherein the effect of quarter-wave plate 260 provides suitable optical path difference.
Owing to do not need to use module backlight, the power consumption of reflective LCD device 2 is less, but it is difficult to use in than dark situation.
Therefore prior art liquid crystal indicator or adopt the penetration structure and consume energy greatlyyer or adopts reflective devices and is difficult to use in than dark situation.
[utility model content]
In order to overcome in the prior art liquid crystal indicator or to adopt the penetration structure and consume energy bigger, or adopting reflective devices and the defective that in than dark situation, is difficult to use, the utility model provides the liquid crystal indicator that a kind of power consumption is less and can use in than dark situation.
The technical scheme that the utility model technical solution problem is adopted is: a kind of liquid crystal indicator is provided, and it has penetrating and reflects two kinds of duties, and it comprises a liquid crystal panel, a conversion equipment and a module backlight.This liquid crystal panel comprises one first polaroid and liquid crystal layer.This conversion equipment comprises a drive unit, is positioned at one on this drive unit and penetrates a film and a reflective film.When this liquid crystal indicator is in when penetrating duty, this drive unit starts makes this penetrate film between this module backlight and this liquid crystal panel; When this liquid crystal indicator was in the reflective operation state, this drive unit starts made contiguous this liquid crystal panel of this reflective film with reflect ambient light.
Compared to prior art, the advantage of the utility model liquid crystal indicator is that it has penetrating and reflects two kinds of duties, and it can be used in dark environment; And when surround lighting was bright, it can close module backlight and power consumption is less.
[description of drawings]
Fig. 1 is a prior art penetration liquid crystal display device synoptic diagram.
Fig. 2 is a prior art reflective LCD device synoptic diagram.
Fig. 3 and Fig. 4 are respectively that the utility model liquid crystal indicator is in the synoptic diagram that penetrates duty and reflective operation state respectively.
[embodiment]
Please refer to Fig. 3, is the working state schematic representation that penetrates of the utility model liquid crystal indicator.This liquid crystal indicator 3 comprises that a liquid crystal panel 30, is positioned at the conversion equipment of liquid crystal panel 30 belows (not indicating), a module 350 backlight and a detector 380 in abutting connection with liquid crystal panel 30.This liquid crystal panel 30 comprises a upper substrate 310, one infrabasal plates 330, at liquid crystal layer between the two substrates 320 and one first polaroid 300 that is arranged on the upper substrate 310.This conversion equipment comprises a drive unit 390, it is made of endless belt 392 and two drive motor 391 that are arranged on the endless belt 392 inboard left and right sides, one as penetrating second polaroid 340 of film, and a reflective film (indicating) that is made of quarter-wave plate 360 and reflector plate 370.This penetrates film 340 and is arranged on driving-belt 392 outsides with this reflective film, and two drive motor 391 can drive driving-belt 392 and move.This module 350 backlight is arranged on the space that driving-belt 392 forms, and it comprises a light source 352 and a light guide plate 351 of arranging from the bottom to top.This module 350 backlight is emergent ray upward.
When detector 380 detects surround lighting when more weak, it starts module 350 backlight so that illumination to be provided, and primer fluid crystal device 3 is for penetrating duty.At this moment, drive motor 391 rotates and drives driving-belt 392 and moves and make and penetrate film 340 between light guide plate 351 and infrabasal plate 330.The light that light source 352 sends outgoing after light guide plate 351, successively through penetrating i.e. second polaroid 340 of film, infrabasal plate 330, liquid crystal layer 320, the upper substrate 310 and first polaroid 300 are with the working method realization demonstration of known penetration liquid crystal display device.
Please refer to Fig. 4, is the reflective operation view of the utility model liquid crystal indicator.When detector 380 detects surround lighting when strong, it closes module 350 backlight reducing power consumption, and primer fluid crystal device 3 is the reflective operation state.At this moment, drive motor 391 rotations and drive driving-belt 392 move and make reflective film be positioned at the below of infrabasal plate 340.Surround lighting is successively through first polaroid 300, upper substrate 310, liquid crystal layer 320, infrabasal plate 330 and quarter-wave plate 360 backs arrive reflector plate 370, be reflected sheet 370 reflection and once more by outgoing after the said modules realizes showing with the working method of known reflective LCD device.
Because the utility model liquid crystal indicator has penetrating and reflect two kinds of duties, it can adopt in dark environment and penetrate duty and finish demonstration, thereby has wider range of application; And when surround lighting was bright, it can adopt the reflective operation state to finish demonstration, and can close module backlight this moment, thereby power consumption is less.Therefore its mode with the conversion work state both advantages that gets both are reached than low power consumption and wider range of application.
The drive motor of the utility model liquid crystal indicator can adopt step motor.Reflective film with penetrate film and can directly be connected and constitute travelling belt with drive motor.
Claims (8)
1. liquid crystal indicator, it has penetrating and reflects two kinds of duties, and it comprises: a liquid crystal panel; One conversion equipment and a module backlight; This conversion equipment comprises a drive unit, one penetrates a film and a reflective film, this penetrates film and reflective film is positioned on this drive unit, when this liquid crystal indicator when penetrating duty, this drive unit starts makes this penetrate film between this module backlight and this liquid crystal panel; When this liquid crystal indicator during at the reflective operation state, this drive unit starts makes contiguous this liquid crystal panel of this reflective film with reflect ambient light.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this liquid crystal panel of this liquid crystal panel comprises one first polaroid.
3. liquid crystal indicator as claimed in claim 1 is characterized in that: this liquid crystal panel is positioned at this conversion equipment top, and this drive unit is a ring-type, and this module backlight is positioned at the inner space of this drive unit.
4. liquid crystal indicator as claimed in claim 1 is characterized in that: this penetrates film and comprises a polaroid.
5. liquid crystal indicator as claimed in claim 1 is characterized in that: this reflective film comprises a quarter-wave plate and a reflector plate.
6. liquid crystal indicator as claimed in claim 1 is characterized in that: this drive unit comprises that a drive motor and penetrates the travelling belt of film and reflective film in order to setting.
7. liquid crystal indicator as claimed in claim 1 is characterized in that: its also comprise a detector in order to the power of determining ambient light to determine the duty of this liquid crystal indicator.
8. liquid crystal indicator as claimed in claim 1 is characterized in that: this module backlight comprises a light source and a light guide plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520054792 CN2777593Y (en) | 2005-02-04 | 2005-02-04 | Liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520054792 CN2777593Y (en) | 2005-02-04 | 2005-02-04 | Liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777593Y true CN2777593Y (en) | 2006-05-03 |
Family
ID=36744977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520054792 Expired - Lifetime CN2777593Y (en) | 2005-02-04 | 2005-02-04 | Liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777593Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395621C (en) * | 2004-12-30 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | LCD device |
| WO2021248595A1 (en) * | 2020-06-12 | 2021-12-16 | 惠州市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display apparatus |
| CN114942543A (en) * | 2022-05-25 | 2022-08-26 | Tcl华星光电技术有限公司 | Display device |
-
2005
- 2005-02-04 CN CN 200520054792 patent/CN2777593Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100395621C (en) * | 2004-12-30 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | LCD device |
| WO2021248595A1 (en) * | 2020-06-12 | 2021-12-16 | 惠州市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display apparatus |
| US11868007B2 (en) | 2020-06-12 | 2024-01-09 | Huizhou China Star Optoelectronics Technology Co., Ltd. | Liquid crystal display panel and liquid crystal display device |
| CN114942543A (en) * | 2022-05-25 | 2022-08-26 | Tcl华星光电技术有限公司 | Display device |
| CN114942543B (en) * | 2022-05-25 | 2023-05-30 | Tcl华星光电技术有限公司 | Display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150204 Granted publication date: 20060503 |