CN1731244A - Liquid crystal indicator - Google Patents
Liquid crystal indicator Download PDFInfo
- Publication number
- CN1731244A CN1731244A CN 200410051054 CN200410051054A CN1731244A CN 1731244 A CN1731244 A CN 1731244A CN 200410051054 CN200410051054 CN 200410051054 CN 200410051054 A CN200410051054 A CN 200410051054A CN 1731244 A CN1731244 A CN 1731244A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- electrode
- crystal indicator
- alignment film
- infrabasal plate
- 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.)
- Pending
Links
Images
Abstract
The present invention discloses a kind of liquid crystal indicator, it comprises a upper substrate, an infrabasal plate, a liquid crystal layer, two Polarizers, an alignment film, a transparent insulating layer, a plurality of through electrode and a plurality of reflecting electrode, wherein, this liquid crystal layer is clipped between this upper substrate and this infrabasal plate, this two Polarizer is separately positioned on upper substrate and the infrabasal plate, this transparent insulating layer and this alignment film are successively set on the infrabasal plate inner surface, between this transparent insulating layer and this alignment film through electrode and reflecting electrode are set, this reflecting electrode surface is provided with a plurality of raised structures.
Description
[technical field]
The invention relates to a kind of liquid crystal indicator, particularly a kind of semi-penetrating semi-reflecting type liquid crystal displaying device.
[background technology]
Liquid crystal indicator is because of characteristics such as have low diathermaneity, volume is compact and power consumption is low, thereby day by day extensive in the use, and along with the ripe and innovation of correlation technique, kind is also various day by day.
Electronic watch, computing machine, personal digital assistant (Personal Digital Assistant, PDA) and portable electronic devices such as mobile phone mostly with liquid crystal indicator as its display device, be based on reflective LCD device at first, for strengthening the display capabilities under the faint environment of light, the back semi-penetrating semi-reflecting type liquid crystal displaying devices that adopt more.
A kind of prior art semi-penetrating semi-reflecting type liquid crystal displaying device can be with reference to the United States Patent (USP) the 6th of bulletin on August 28 calendar year 2001,281, No. 952, as shown in Figure 1, this liquid crystal indicator 1 comprises two transparent lower substrate that are provided with relatively 110 and upper substrate 11, one liquid crystal layer 10 is clipped between this infrabasal plate 110 and the upper substrate 11, and the mutually perpendicular Polarizer 16,161 in a pair of polarization direction is attached to the outside of substrate 11,110 respectively.One transparent common electrode 18 is arranged on upper substrate 11 inboards.One transparent insulating layer 12 and an alignment film 13 are successively set on the inboard of infrabasal plate 110.This transparent insulating layer 12 is a thickness fluctuating shape structure, between these transparent insulating layer 12 thicker parts and alignment film 13, a plurality of reflecting electrodes 141 are set, this reflecting electrode 141 is used for reflecting the surround lighting that the comes from the outside light of (figure does not show), between these transparent insulating layer 12 thin locations and alignment film 13 a plurality of through electrodes 142 are set, these through electrode 142 feasible light from backlight (figure does not show) can penetrate out this liquid crystal indicator 1.This through electrode 142 and this reflecting electrode 141 also serve as the pixel electrode of infrabasal plate 110 simultaneously, apply voltage at this transparent common electrode 18 and this through electrode 142 and 141 of this reflecting electrodes and can form electric field to control the Liquid Crystal Molecules Alignment of liquid crystal layer 10.
But, when this reflecting electrode 141 comes from the outside the light of surround lighting (figure do not show) in reflection, because special processing is not done on its surface, light forms direct reflection on these reflecting electrode 141 surfaces easily at reflex time, cause the brightness of display screen inequality, thereby influence the image display quality of this liquid crystal indicator 1.
[summary of the invention]
Problem for the liquid crystal indicator brightness of display screen inequality that overcomes prior art the invention provides the uniform liquid crystal indicator of a kind of brightness of display screen.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of liquid crystal indicator is provided, this liquid crystal indicator comprises a upper substrate, one infrabasal plate, one liquid crystal layer, two Polarizers, one alignment film, one transparent insulating layer, a plurality of through electrodes and a plurality of reflecting electrode, wherein, this liquid crystal layer is clipped between this upper substrate and this infrabasal plate, this two Polarizer is separately positioned on upper substrate and the infrabasal plate, this transparent insulating layer and this alignment film are successively set on the infrabasal plate inner surface, between this transparent insulating layer and this alignment film through electrode and reflecting electrode are set, this reflecting electrode surface is provided with a plurality of raised structures.
Compared to prior art, because liquid crystal indicator of the present invention is provided with a plurality of raised structures on the reflecting electrode surface, when the light of the surround lighting that comes from the outside passes through this reflective electrodes reflects, these a plurality of raised structures can make surround lighting that random diffuse reflection takes place, thereby eliminated light to produce direct reflection and caused the possibility of brightness of display screen inequality, can promote the image display quality of liquid crystal indicator on the reflecting electrode surface.
[description of drawings]
Fig. 1 is the diagrammatic cross-section of prior art liquid crystal indicator.
Fig. 2 is the diagrammatic cross-section of liquid crystal indicator first embodiment of the present invention.
Fig. 3 is the light path synoptic diagram of liquid crystal indicator first embodiment of the present invention.
Fig. 4 is the diagrammatic cross-section of liquid crystal indicator second embodiment of the present invention.
[embodiment]
Seeing also Fig. 2, is the diagrammatic cross-section of liquid crystal indicator of the present invention.This liquid crystal indicator 2 comprises that two transparent lower substrate that are provided with relatively 31 are clipped between this infrabasal plate 31 and the upper substrate 21 with upper substrate 21, one liquid crystal layers 20, and the mutually perpendicular Polarizer 26,36 in a pair of polarization direction pastes respectively to be paid in the outer surface of substrate 21,31.One transparent common electrode 28 and an alignment film 23 are successively set on the inner surface of upper substrate 21.One transparent insulating layer 32 and an alignment film 33 are successively set on the inner surface of infrabasal plate 31.This infrabasal plate 31 further comprises a plurality of thin film transistor (TFT)s, and (Thin Film Transistor TFT) (schemes not show).
This transparent insulating layer 32 is a thickness fluctuating shape structure, between these transparent insulating layer 32 thicker parts and alignment film 33, a reflecting electrode 38 is set, a plurality of raised structures 381 are set on this reflecting electrode 38, and this reflecting electrode 38 is used to reflect the light of surround lighting of coming from the outside.Between these transparent insulating layer 32 thin locations and alignment film 33 through electrode 39 is set, these through electrode 39 feasible light from backlight can penetrate out this liquid crystal indicator 2.This liquid crystal indicator 2 is a semi-penetrating semi-reflecting type liquid crystal displaying device, should go up alignment film 23 and following alignment film 33 and adopt the friction matching manufacturing process to make its alignment direction in the same way, alignment direction of alignment film 23 and following alignment film 33 also can be to differ 10 angles about spending on this.Apply the both alignment layers of high tilt angle on this reflecting electrode 38, wherein this high pre-dumping angle is that 80 degree are between 90 degree.Apply the both alignment layers of low tilt angle on this through electrode 39, wherein should low pre-dumping angle be less than or equal to 10 degree.
This reflecting electrode 38 is to adopt the metal material of tool reflection potential to make, as the alloy of aluminium (Al) or aluminium and neodymium (Nd) etc.This through electrode 39 is to adopt transparent conductive material to make, as tin indium oxide (Indium Tin Oxide, ITO) or indium zinc oxide (Indium Zinc Oxide, IZO) etc.Can recently regulate penetrating of this liquid crystal indicator 2 and reflection ratio by the area of regulating through electrode 39 and reflecting electrode 38.This reflecting electrode 38 and through electrode 39 can serve as pixel electrode simultaneously, apply voltage at transparent common electrode 28 and this reflecting electrode 38 and 39 of through electrodes and can form the Liquid Crystal Molecules Alignment of electric field with control liquid crystal layer 20.These reflecting electrode 38 pairing thickness of liquid crystal layer are d2, and these through electrode 39 pairing thickness of liquid crystal layer are d1, wherein the thickness of d2 be d1 thickness 1/4 to 7/8 between.
Seeing also Fig. 3, is the index path of this invention liquid crystal indicator 2.When liquid crystal indicator 2 showed in the mode of penetrating, the light that sends from backlight became the polarization direction polarized light identical with the polarization axle of Polarizer 36 through Polarizer 36, infrabasal plate 31, through electrode 39 respectively.When transparent common electrode 28 and 39 of through electrodes apply a low-voltage, polarized light becomes the polarization direction polarized light identical with the polarization axis direction of Polarizer 26 after by liquid crystal layer 20, thereby light can be by upper substrate 21 and from Polarizer 26 outgoing, so liquid crystal indicator 2 shows bright attitude.When transparent common electrode 28 and 39 of through electrodes apply a high voltage, except that the close liquid crystal molecule of alignment film 23,33, all the other liquid crystal molecules tilt to direction of an electric field, its long axis direction is consistent with direction of an electric field, polarized light is constant by liquid crystal layer 20 its polarization states of back, vertical with the polarization axis direction of Polarizer 26, thus light can not pass through Polarizer 26, so liquid crystal indicator 2 shows dark attitude.Apply one at transparent common electrode 28 and 39 of through electrodes and can realize that less than the voltage of above-mentioned specific voltage each GTG of liquid crystal indicator 2 shows.
When liquid crystal indicator 2 shows in the reflection mode, external environment light is respectively by Polarizer 26 and upper substrate 21, become the polarization direction polarized light identical with the polarization axle of Polarizer 26, when transparent common electrode 28 and 38 of reflecting electrodes apply a high voltage, the long axis direction of most of liquid crystal molecule of liquid crystal layer 20 is consistent with direction of an electric field, polarized light is by behind the liquid crystal layer 20, its polarization state does not have change, so from upper substrate 21 outgoing, liquid crystal indicator 2 shows bright attitude to this polarized light after reflecting electrode 38 reflections.When transparent common electrode 28 and 38 of reflecting electrodes apply a low-voltage, polarized light becomes the polarization direction polarized light identical with the polarization axis direction of Polarizer 36 after by liquid crystal layer 20, thereby light can not pass through Polarizer 26, and liquid crystal indicator 2 shows dark attitude.38 of transparent common electrode 28 and reflecting electrodes apply one can realize that less than the voltage of above-mentioned specific voltage each GTG of liquid crystal indicator 2 shows.
This raised structures 381 is arranged on this reflecting electrode 38 surfaces, when the incident ray a of the surround lighting that comes from the outside passes through these reflecting electrode 38 reflex times, these a plurality of raised structures 381 can make reflection ray b, c, d produce random diffuse reflection, thereby eliminated the possibility of light a, can promote the image display quality of liquid crystal indicator 2 in reflecting electrode 38 surface generation direct reflections.
Seeing also Fig. 4, is the liquid crystal indicator second embodiment synoptic diagram of the present invention.The present embodiment liquid crystal indicator 3 and the first embodiment liquid crystal indicator 2 are roughly the same, and its difference is, between upper substrate 41 and Polarizer 46 one deck optical compensation films 49 is set.This liquid crystal indicator 3 promotes the effect of image display quality except that playing, and can also play the effect that increases contrast and angular field of view.
Liquid crystal indicator of the present invention is provided with a plurality of raised structures on the reflecting electrode surface, when the light of the surround lighting that comes from the outside passes through this reflective electrodes reflects, these a plurality of raised structures can make surround lighting that random diffuse reflection takes place, thereby eliminated light to produce direct reflection and caused the possibility of brightness of display screen inequality, can promote the image display quality of liquid crystal indicator on the reflecting electrode surface.
Claims (11)
1. liquid crystal indicator, it comprises a upper substrate, an infrabasal plate, a liquid crystal layer, two Polarizers, an alignment film, a plurality of through electrode and a plurality of reflecting electrode, wherein, this liquid crystal layer is clipped between this upper substrate and this infrabasal plate, this two Polarizer is separately positioned on upper substrate and the infrabasal plate, this alignment film is arranged on infrabasal plate and closes on liquid crystal layer one side, this through electrode and reflecting electrode are arranged on the infrabasal plate, the pairing thickness of liquid crystal layer of this through electrode and reflecting electrode is different, it is characterized in that: this reflecting electrode surface is provided with a plurality of raised structures.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this through electrode is a transparent conductive material.
3. liquid crystal indicator as claimed in claim 1 is characterized in that: this through electrode material is tin indium oxide or indium zinc oxide.
4. liquid crystal indicator as claimed in claim 1 is characterized in that: this reflecting electrode material is aluminium or aluminium neodymium alloy.
5. liquid crystal indicator as claimed in claim 1 is characterized in that: further comprise an insulation course, be arranged between this through electrode, reflecting electrode and the infrabasal plate.
6. liquid crystal indicator as claimed in claim 5 is characterized in that: this insulation course tool shape structure that just rises and falls.
7. liquid crystal indicator as claimed in claim 6 is characterized in that: this reflecting electrode is arranged between alignment film and the insulation course thicker part.
8. liquid crystal indicator as claimed in claim 6 is characterized in that: this through electrode is arranged between alignment film and the insulation course thin location.
9. liquid crystal indicator as claimed in claim 1 is characterized in that: the alignment film pre-dumping angle that is provided with on this reflecting electrode is that 80 degree are between 90 degree.
10. liquid crystal indicator as claimed in claim 1 is characterized in that: the alignment film pre-dumping angle that is provided with on this through electrode is less than or equal to 10 degree.
11. liquid crystal indicator as claimed in claim 1 is characterized in that: this upper substrate and be arranged between the Polarizer of this upper substrate an optical compensation films is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410051054 CN1731244A (en) | 2004-08-07 | 2004-08-07 | Liquid crystal indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410051054 CN1731244A (en) | 2004-08-07 | 2004-08-07 | Liquid crystal indicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1731244A true CN1731244A (en) | 2006-02-08 |
Family
ID=35963631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410051054 Pending CN1731244A (en) | 2004-08-07 | 2004-08-07 | Liquid crystal indicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1731244A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458504C (en) * | 2006-03-16 | 2009-02-04 | 财团法人工业技术研究院 | Semi-reflection and semi-transparent type LCD and making method thereof |
| CN101075045B (en) * | 2006-05-18 | 2013-05-22 | Nlt科技股份有限公司 | Semi-transmissive type liquid-crystal display device and method of fabricating the same |
-
2004
- 2004-08-07 CN CN 200410051054 patent/CN1731244A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100458504C (en) * | 2006-03-16 | 2009-02-04 | 财团法人工业技术研究院 | Semi-reflection and semi-transparent type LCD and making method thereof |
| CN101075045B (en) * | 2006-05-18 | 2013-05-22 | Nlt科技股份有限公司 | Semi-transmissive type liquid-crystal display device and method of fabricating the same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1841155B (en) | Liquid crystal display | |
| KR100816145B1 (en) | Liquid crystal device and electronic apparatus | |
| KR101174164B1 (en) | Transflective Liquid Crystal Display device | |
| US20060238675A1 (en) | Transflective liquid crystal display with vertical alignment | |
| JP2008077119A (en) | Liquid crystal display using dual light unit | |
| US7728929B2 (en) | Transflective liquid crystal display device | |
| CN100367092C (en) | Liquid crystal device and electronic apparatus | |
| CN109976027A (en) | A kind of display panel, display device and its driving method | |
| CN103969882B (en) | A kind of liquid crystal panel and display device | |
| US7414685B2 (en) | Transflective fringe field switching liquid crystal display | |
| US20070252931A1 (en) | Transflective liquid crystal display device | |
| US20190049801A1 (en) | Transflective liquid crystal display device | |
| US9134571B2 (en) | Liquid crystal panel and display device | |
| CN100483191C (en) | Semi-penetration and semi-reflective liquid crystal display device | |
| CN1749821A (en) | Semi-penetrating semi-reflecting type liquid crystal displaying device | |
| CN1731244A (en) | Liquid crystal indicator | |
| US7586568B2 (en) | Liquid crystal display panel and liquid crystal display device incorporating the same | |
| CN210666262U (en) | Display panel and display device | |
| CN2735385Y (en) | Liquid crystal display device | |
| CN1655029A (en) | Liquid crystal display device | |
| CN100464225C (en) | Semi-penetration and semi-reflection type LCD device | |
| US20040032383A1 (en) | Power-saving liquid crystal display and operation method of the same | |
| CN113406818B (en) | Liquid crystal display device having a plurality of pixel electrodes | |
| CN1645230A (en) | Semi-penetrating and semi-reflecting liquid crystal assembly, and pixel electrode structure thereof | |
| CN2727783Y (en) | Transflective liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |