CN1979288A - Liquid crystal displaying device - Google Patents
Liquid crystal displaying device Download PDFInfo
- Publication number
- CN1979288A CN1979288A CN 200510102290 CN200510102290A CN1979288A CN 1979288 A CN1979288 A CN 1979288A CN 200510102290 CN200510102290 CN 200510102290 CN 200510102290 A CN200510102290 A CN 200510102290A CN 1979288 A CN1979288 A CN 1979288A
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- substrate
- polaroid
- film
- disc
- 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.)
- Granted
Links
Images
Abstract
The invention relates to a liquid crystal display (LCD) device, comprising a first substrate; a second substrate, opposite to the first one; a liquid crystal layer between the two substrates; a first polarizer arranged outside the first substrate; a second polarizer arranged outside the second substrate; a first disc liquid crystal molecular membrane arranged between the first polarizer and the first substrate; a second disc liquid crystal molecular membrane arranged between the second polarizer and the second substrate; a double-axis compensation membrane arranged between the first disc liquid crystal molecular membrane and the first polarizer. And the LCD device has better display effect.
Description
[technical field]
The present invention relates to a kind of liquid crystal indicator.
[background technology]
Because the liquid crystal in the liquid crystal indicator itself does not possess the characteristics of luminescence, provide light source with display image so be required to be it.According to the difference of light source that liquid crystal indicator utilizes, it can be divided into reflective LCD device and penetration liquid crystal display device.But reflective LCD device is difficult under low light environment realize that image shows, makes its range of application limited, so penetration liquid crystal display device becomes main flow gradually.
A kind of prior art liquid crystal indicator as shown in Figure 1, this liquid crystal indicator 100 comprises liquid crystal panel 102 and module backlight 104.This liquid crystal panel 102 and module backlight 104 stacked settings, this module 104 backlight provides planar light for this liquid crystal panel 102.
This liquid crystal panel 102 comprises first substrate 110, liquid crystal layer 120 and second substrate 130, and these two substrates 110,130 are oppositely arranged, and this liquid crystal layer 120 is between these two substrates 110,130.This liquid crystal layer 120 is eurymeric (Δ n＞a 0) liquid crystal material.
This first substrate 110 comprises first polaroid 111, first quarter-wave plate 113, the first disc-like liquid crystal molecular film (Discotic Liquid Crystal MolecularFilm), 114, first substrate 115, public electrode 117 and first alignment film 119; By the outside to this liquid crystal layer 120 be cascading this first polaroid 111, first quarter-wave plate 113, the first disc-like liquid crystal molecular film 114, first substrate 115, public electrode 117 and first alignment film 119.
This second substrate 130 comprises second polaroid 131, second quarter-wave plate 133, the second disc-like liquid crystal molecular film 134, second substrate 135, pixel electrode 137 and second alignment film 139; By the outside to this liquid crystal layer 120 be cascading this second polaroid 131, second quarter-wave plate 133, the second disc-like liquid crystal molecular film 134, second substrate 135, pixel electrode 137 and second alignment film 139.
The slow axis of this first quarter-wave plate 113 is vertical mutually with the slow axis of this second quarter-wave plate 133, the absorption axes of this first polaroid 111 is vertical mutually with the absorption axes of this second polaroid 131, the slow axis of this first quarter-wave plate 113 becomes miter angle with the absorption axes of this first polaroid 111, and the slow axis of this second quarter-wave plate 133 becomes miter angle with the absorption axes of this second polaroid 131.
Yet, this quarter-wave plate 113,133 is a uniaxial compensation film, can only the light of single direction be compensated, and the light on the direction vertical with this direction can't compensate, and then cause the contrast with on this direction vertical direction of this liquid crystal indicator 100 lower, and the visual angle is also less.Therefore, these liquid crystal indicator 100 display effects are relatively poor.
[summary of the invention]
In order to solve the relatively poor problem of liquid crystal indicator display effect in the prior art, be necessary the liquid crystal indicator that provides a kind of display effect preferable.
A kind of liquid crystal indicator, it comprises one first substrate; One second substrate, itself and this first substrate is oppositely arranged; One liquid crystal layer is between this first substrate and second substrate; One first polaroid, it is arranged on the outside of this first substrate; One second polaroid, it is arranged on the outside of this second substrate; One first disc-like liquid crystal molecular film, it is arranged between this first polaroid and first substrate; One second disc-like liquid crystal molecular film, it is arranged between this second polaroid and second substrate; One twin shaft compensate film, it is arranged between this first disc-like liquid crystal molecular film and first polaroid.
Compared to prior art,, make the contrast of this liquid crystal indicator on both direction improve, and the visual angle become wide because this biaxial compensation film can compensate the light on the orthogonal both direction.Therefore, the display effect of this liquid crystal indicator is preferable.
[description of drawings]
Fig. 1 is the synoptic diagram of prior art liquid crystal indicator.
Fig. 2 is the synoptic diagram of liquid crystal indicator first embodiment of the present invention.
Fig. 3 is the synoptic diagram of liquid crystal indicator second embodiment of the present invention.
Fig. 4 is the synoptic diagram of liquid crystal indicator the 3rd embodiment of the present invention.
[embodiment]
First embodiment of liquid crystal indicator of the present invention as shown in Figure 2, this liquid crystal indicator 200 comprises liquid crystal panel 202 and module backlight 204.This liquid crystal panel 202 and module backlight 204 stacked settings, this module 204 backlight provides planar light for liquid crystal panel 202.
This liquid crystal panel 202 comprises first substrate 210, liquid crystal layer 220 and second substrate 230, and these two substrates 210,230 are oppositely arranged, and this liquid crystal layer 220 is between these two substrates 210,230.
This first substrate 210 comprises first polaroid 211, first biaxial compensation film (Biaxial Compensation Film), 213, the first disc-like liquid crystal molecular film 214, first substrate 215, public electrode 217 and first alignment film 219; By the outside to this liquid crystal layer 220 be cascading this first polaroid 211, first biaxial compensation film 213, the first disc-like liquid crystal molecular film 214, first substrate 215, public electrode 217 and first alignment film 219.
This second substrate 230 comprises second polaroid 231, second biaxial compensation film 233, the second disc-like liquid crystal molecular film 234, second substrate 235, pixel electrode 237 and second alignment film 239; By the outside to this liquid crystal layer 220 be cascading this second polaroid 231, second biaxial compensation film 233, the second disc-like liquid crystal molecular film 234, second substrate 235, pixel electrode 237 and second alignment film 239.
This liquid crystal layer 220 is the eurymeric liquid crystal material, and it is subjected to the elasticity coefficient K of external force expansion state
11, twisting states elasticity coefficient K
22And the elasticity coefficient K of case of bending
33Satisfy following relation: K
33/ K
11=1.26, K
22=5.6pN (pN=10
-12N, N are mechanical units newton).The operating voltage of this liquid crystal layer 220 is 1.5 volts to 7 volts.The complex index of refraction Δ n of this liquid crystal layer 220 and the thickness d of this liquid crystal layer 220 (unit is nm) satisfy formula: Δ nd=760nm.
This first biaxial compensation film 213 and the refractive index of second biaxial compensation film 233 on x, y and z direction are respectively n
x, n
yAnd n
z, thickness is all d (nm); This n
x, n
y, n
zAnd d satisfies following relation: (n
x-n
y) d=145.2nm, (n
x-n
z) d=390.73nm.
This first disc-like liquid crystal molecular film 214 and the second disc-like liquid crystal molecular film 234 are mixed type (Hybrid) structure; Liquid crystal in this first disc-like liquid crystal molecular film 214 and the second disc-like liquid crystal molecular film 234 is minus (Δ n＜a 0) liquid crystal; Its refractive index on x, y and z direction is respectively n
x, n
yAnd n
z, thickness is d (nm); This n
x, n
y, n
zAnd d satisfies following relation: R
Th=((n
x+ n
y)/2-n
z) d, R
Th=60nm.The tilt angle (Pretilt Angle) of the disc-like liquid crystal molecule of this first disc-like liquid crystal molecular film 214 and the second disc-like liquid crystal molecular film, 234 contiguous these liquid crystal layer 220 1 sides is θ
1, the tilt angle of the disc-like liquid crystal molecule of opposite side is θ
2, the mean obliquity β of disc-like liquid crystal molecule=(θ
1+ θ
2)/2, β=35.5 degree.
This public electrode 217 and pixel electrode 237 are transparent conductive material, as tin indium oxide or indium zinc oxide.This first substrate 215 and second substrate 235 are transparent material, as glass or quartz.
This first alignment film 219 and second alignment film 239 are horizontal direction matching, the tilt angle of these two alignment films 219,239 be 0 the degree to 15 the degree, the alignment direction of this second alignment film 239 is parallel with the alignment direction of this first alignment film 219.
The absorption axes of this first polaroid 211 becomes miter angle with the alignment direction of this first alignment film 219, the absorption axes of this second polaroid 231 becomes an angle of 90 degrees with the absorption axes of this first polaroid 211, the slow axis of this second biaxial compensation film 233 is parallel with the absorption axes of this second polaroid 231, and the slow axis of this first biaxial compensation film 213 is parallel with the slow axis of this second biaxial compensation film 233.
Compared to prior art, because this first biaxial compensation film 213 and second biaxial compensation film 233 can compensate the light on the orthogonal both direction, make the contrast of this liquid crystal indicator 200 on both direction improve, and it is wide that the visual angle becomes, therefore, the display effect of this liquid crystal indicator 200 is preferable.
Second embodiment of liquid crystal indicator of the present invention as shown in Figure 3, this liquid crystal indicator 300 comprises liquid crystal panel 302 and module backlight 304.This liquid crystal panel 302 and module backlight 304 stacked settings, this module 304 backlight provides planar light for liquid crystal panel 302.
This liquid crystal panel 302 comprises first substrate 310, liquid crystal layer 320 and second substrate 330, and these two substrates 310,330 are oppositely arranged, and this liquid crystal layer 320 is between these two substrates 310,330.
This first substrate 310 comprises first polaroid 311, biaxial compensation film 313, the first disc-like liquid crystal molecular film 314, first substrate 315, public electrode 317 and first alignment film 319; By the outside to this liquid crystal layer 320 be cascading this first polaroid 311, biaxial compensation film 313, the first disc-like liquid crystal molecular film 314, first substrate 315, public electrode 317 and first alignment film 319.
This second substrate 330 comprises second polaroid 331, the second disc-like liquid crystal molecular film 334, second substrate 335, pixel electrode 337 and second alignment film 339; By the outside to this liquid crystal layer 320 be cascading this second polaroid 331, the second disc-like liquid crystal molecular film 334, second substrate 335, pixel electrode 337 and second alignment film 339.
This liquid crystal layer 320 is the eurymeric liquid crystal material.This first disc-like liquid crystal molecular film 314 and the second disc-like liquid crystal molecular film 334 are hybrid architecture; Liquid crystal in this first disc-like liquid crystal molecular film 314 and the second disc-like liquid crystal molecular film 334 is minus (Δ n＜a 0) liquid crystal.This public electrode 317 and pixel electrode 337 are transparent conductive material, as tin indium oxide or indium zinc oxide.This first substrate 315 and second substrate 335 are transparent material, as glass or quartz.
This first alignment film 319 and second alignment film 339 are horizontal direction matching, the tilt angle of these two alignment films 319,339 be 0 the degree to 15 the degree, the alignment direction of this second alignment film 339 is parallel with the alignment direction of this first alignment film 319.
The absorption axes of this first polaroid 311 becomes miter angle with the alignment direction of this first alignment film 319, the absorption axes of this second polaroid 331 becomes an angle of 90 degrees with the absorption axes of this first polaroid 311, and the slow axis of this biaxial compensation film 313 is parallel with the absorption axes of this second polaroid 331.
The 3rd embodiment of liquid crystal indicator of the present invention as shown in Figure 4, this embodiment and the second embodiment difference are: the biaxial compensation film 433 of this liquid crystal indicator 400 is arranged between this second disc-like liquid crystal molecular film 434 and this second polaroid 431.
Claims (10)
1. liquid crystal indicator, it comprises:
One first substrate;
One second substrate, itself and this first substrate is oppositely arranged;
One liquid crystal layer is between this first substrate and second substrate;
One first polaroid, it is arranged on the outside of this first substrate;
One second polaroid, it is arranged on the outside of this second substrate;
One first disc-like liquid crystal molecular film, it is arranged between this first polaroid and first substrate;
One second disc-like liquid crystal molecular film, it is arranged between this second polaroid and second substrate;
It is characterized in that: this liquid crystal indicator further comprises a twin shaft compensate film,
It is arranged between this first disc-like liquid crystal molecular film and first polaroid.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this liquid crystal indicator further comprises another biaxial compensation film, and it is arranged between this second disc-like liquid crystal molecular film and second substrate.
3. liquid crystal indicator as claimed in claim 1 or 2 is characterized in that: this liquid crystal indicator further comprises one first alignment film and one second alignment film; This first alignment film is arranged between this first substrate and this liquid crystal layer, and this second alignment film is arranged between this second substrate and this liquid crystal layer.
4. liquid crystal indicator as claimed in claim 1 or 2 is characterized in that: these two alignment films are horizontal direction matching, the tilt angle of these two alignment films be 0 the degree to 15 the degree, the alignment direction of this second alignment film is parallel with the alignment direction of this first alignment film.
5. liquid crystal indicator as claimed in claim 4 is characterized in that: the absorption axes of this first polaroid is vertical mutually with the absorption axes of this second polaroid; The absorption axes of this second polaroid becomes miter angle with the alignment direction of these two alignment films; The slow axis of these two biaxial compensation films is parallel to the absorption axes of this second polaroid.
6. liquid crystal indicator as claimed in claim 1 or 2 is characterized in that: the liquid crystal molecule of this liquid crystal layer is subjected to the elasticity coefficient K of external force expansion state
11, twisting states elasticity coefficient K
22And the elasticity coefficient K of case of bending
33Satisfy following relation: K
33/ K
11=1.26, K
22=5.6pN, the operating voltage of this liquid crystal layer are 1.5 volts to 7 volts.
7. liquid crystal indicator as claimed in claim 1 or 2 is characterized in that: the complex index of refraction Δ n and the thickness d of this liquid crystal layer satisfy formula: Δ nd=760nm.
8. liquid crystal indicator as claimed in claim 1 or 2 is characterized in that: the refractive index of these two disc-like liquid crystal molecular films on x, y and z direction is respectively n
x, n
yAnd n
z, thickness is d; This n
x, n
y, n
zAnd d satisfies following relation: R
Th=((n
x+ n
y)/2-n
z) d, R
Th=60nm.
9. liquid crystal indicator as claimed in claim 1 or 2 is characterized in that: the disc-like liquid crystal molecule mean obliquity of these two disc-like liquid crystal molecular films is 35.5 degree.
10. liquid crystal indicator as claimed in claim 1 or 2 is characterized in that: the refractive index of this biaxial compensation film on x, y, z direction is respectively n
x, n
yAnd n
z, thickness is d; This n
x, n
y, n
zAnd d satisfies following relation: (n
x-n
y) d=145.2nm, (n
x-n
z) d=390.73nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101022901A CN100397191C (en) | 2005-12-09 | 2005-12-09 | Liquid crystal displaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101022901A CN100397191C (en) | 2005-12-09 | 2005-12-09 | Liquid crystal displaying device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1979288A true CN1979288A (en) | 2007-06-13 |
| CN100397191C CN100397191C (en) | 2008-06-25 |
Family
ID=38130505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101022901A Active CN100397191C (en) | 2005-12-09 | 2005-12-09 | Liquid crystal displaying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100397191C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101840104A (en) * | 2010-05-07 | 2010-09-22 | 河北工业大学 | Liquid crystal light valve having high contrast and quick response |
| CN101526681B (en) * | 2008-03-03 | 2014-05-28 | 三星显示有限公司 | Liquid crystal composition and LCD for its use |
| CN106292114A (en) * | 2016-09-28 | 2017-01-04 | 广东工业大学 | Interference colours production method under a kind of disc-like liquid crystal magnetic field |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1619369A (en) * | 2003-11-21 | 2005-05-25 | 力特光电科技股份有限公司 | Liquid crystal display device and its light screening device and polarizing board |
| CN1693959A (en) * | 2004-05-08 | 2005-11-09 | 力特光电科技股份有限公司 | Liquid crystal structure for phase differential compensation of supertorsion nematic liquid crystal element |
-
2005
- 2005-12-09 CN CNB2005101022901A patent/CN100397191C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526681B (en) * | 2008-03-03 | 2014-05-28 | 三星显示有限公司 | Liquid crystal composition and LCD for its use |
| CN101840104A (en) * | 2010-05-07 | 2010-09-22 | 河北工业大学 | Liquid crystal light valve having high contrast and quick response |
| CN101840104B (en) * | 2010-05-07 | 2012-03-21 | 河北工业大学 | Liquid crystal light valve having high contrast and quick response |
| CN106292114A (en) * | 2016-09-28 | 2017-01-04 | 广东工业大学 | Interference colours production method under a kind of disc-like liquid crystal magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100397191C (en) | 2008-06-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1841155B (en) | Liquid crystal display | |
| US8237901B2 (en) | Liquid crystal display device with retardation plates | |
| US7948580B2 (en) | Liquid crystal display | |
| JPWO2018221413A1 (en) | Display device | |
| CN101354490A (en) | Half-transmission half-reflection type liquid crystal display and manufacturing method thereof | |
| KR100722458B1 (en) | Liquid crystal display device | |
| TWI343497B (en) | Liquid crystal display including compensation film | |
| WO2019103012A1 (en) | Display device | |
| CN102736320A (en) | Display and electronic unit | |
| EP2400341A1 (en) | Liquid crystal display device | |
| KR101644518B1 (en) | Transparent display device and method for displaying using the same | |
| CN104297997A (en) | Liquid crystal display panel, and display method and display device thereof | |
| CN100397191C (en) | Liquid crystal displaying device | |
| TWI328697B (en) | Liquid crystal display device | |
| US8203671B2 (en) | View angle controllable display device and terminal having the same | |
| US20070132928A1 (en) | Liquid crystal display having biaxial compensating film | |
| CN1274861A (en) | Liquid crystal display device | |
| JP5203557B2 (en) | Liquid crystal display | |
| CN102112910B (en) | Vertically aligned liquid crystal display device | |
| US9007548B2 (en) | Wide view angle liquid crystal display device operating in normally white mode | |
| CN210954557U (en) | Display assembly and display device | |
| US20080239221A1 (en) | Reflection type liquid crystal display panel | |
| JP4788247B2 (en) | Liquid crystal device and electronic device | |
| JP2005043698A (en) | Liquid crystal display | |
| US20140125924A1 (en) | Polarizing plate and liquid crystal display having the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |