CN2852186Y - Liquid crystal panel - Google Patents
Liquid crystal panel Download PDFInfo
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- CN2852186Y CN2852186Y CN 200520119946 CN200520119946U CN2852186Y CN 2852186 Y CN2852186 Y CN 2852186Y CN 200520119946 CN200520119946 CN 200520119946 CN 200520119946 U CN200520119946 U CN 200520119946U CN 2852186 Y CN2852186 Y CN 2852186Y
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- liquid crystal
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Abstract
The utility model relates to a liquid crystal panel which comprises a first base plate, a second base plate, and a liquid crystal layer between the first base plate and the second base plate, wherein the first base plate and the second base plate are opposite to be arranged, the first base plate comprises a first base, a first light polarized sheet and a first retardation film, the second base plate comprises a second base, a second light polarized sheet and a second retardation film, and the liquid crystal layer is positioned between the first base and the second base. The first light polarized sheet and the first retardation film are orderly arranged at one side of the first base, and the side of the first base is different from the liquid crystal layer. The second light polarized sheet and the second retardation film are orderly arranged at one side of the second base, and the side of the second base is different from the liquid crystal layer. The liquid crystal panel further comprises a dish-shaped liquid crystal molecule film arranged between the first retardation film and the first base. The liquid crystal panel has the advantages of higher contrast grade and wide view angle.
Description
[technical field]
The utility model relates to a kind of liquid crystal panel.
[background technology]
Characteristics such as that liquid crystal indicator has is frivolous, low power consumption and radiation are few, therefore be widely used in fields such as monitor, LCD TV, mobile phone and portable computer, and become main flow in the display, but also characteristics such as its contrast and visual angle are had higher requirement simultaneously.And liquid crystal panel is the display element of liquid crystal indicator, and therefore, it is very important that the contrast of liquid crystal panel and viewing angle characteristic seem.
A kind of liquid crystal panel of prior art as shown in Figure 1, this liquid crystal panel 100 comprises first substrate 110, liquid crystal layer 120 and second substrate 130, these two substrates 110,130 are oppositely arranged, this liquid crystal layer 120 is between these two substrates 110,130.This liquid crystal layer 120 is that twisted-nematic (Twist Nematic, TN) form by the type liquid crystal.
This first substrate 110 comprises first polaroid 111, first phase shift films 113, 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 phase shift films 113, first substrate 115, public electrode 117 and first alignment film 119.
This second substrate 130 comprises second polaroid 131, second phase shift films 133, 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 phase shift films 133, second substrate 135, pixel electrode 137 and second alignment film 139.
These two phase shift films 113,133 are quarter-wave plate.The slow axis of this first phase shift films 113 is vertical mutually with the slow axis of this second phase shift films 133, the polarizing axis of this first polaroid 111 is vertical mutually with the polarizing axis of this second polaroid 131, the slow axis of this first phase shift films 113 becomes miter angle with the polarizing axis of this first polaroid 111, and the slow axis of this second phase shift films 133 becomes miter angle with the polarizing axis of this second polaroid 131.When the polarization direction becomes the line polarisation incident phase shift films of miter angle with the slow axis of phase shift films, will transfer rotatory polarization to after seeing through.When the polarization direction becomes the line polarisation incident phase shift films of non-miter angle with the slow axis of phase shift films, will transfer elliptical polarized light to after seeing through.When rotatory polarization incident phase shift films, will transfer the polarization direction becomes miter angle with the slow axis of phase shift films line polarisation after seeing through to.When elliptical polarized light incident phase shift films, will transfer the polarization direction becomes non-miter angle with the slow axis of phase shift films line polarisation after seeing through to.
See also Fig. 2, be the Liquid Crystal Molecules Alignment synoptic diagram of these liquid crystal panel 100 bright attitudes with dark attitude.When not applying voltage, the rotation of liquid crystal molecule along continuous straight runs is arranged, and when light passes through this liquid crystal layer 120, the polarization direction of light will rotate along with the rotation of liquid crystal molecule, and this moment, this liquid crystal panel 100 was bright attitude.When applying voltage, liquid crystal molecule is arranged perpendicular to the direction of substrate in the effect lower edge of public electrode 117 and pixel electrode 137, and light will directly not change the polarization direction by this liquid crystal layer 120, so this liquid crystal panel 100 is dark attitude.Can realize that by the voltage that applies different value different GTGs shows.
Yet, when applying voltage, owing to have grasp energy (Anchoring Energy) between alignment film 119,139 and near the liquid crystal molecule that is positioned at it, near the alignment film 119,139 liquid crystal molecule can not be arranged along the direction perpendicular to substrate 110,130 fully, at this moment, when this liquid crystal layer 120 of light process, the light delay amount of all directions is inequality, make this liquid crystal layer 120 also different in the brightness of different directions, thereby cause the contrast of this liquid crystal panel 102 to reduce, and the visual angle of this liquid crystal panel 102 also diminish.
[utility model content]
In order to solve lower, the visual angle problem of smaller of liquid crystal panel contrast in the prior art, be necessary to provide the liquid crystal panel that a kind of contrast is higher, the visual angle is wider.
A kind of liquid crystal panel, it comprises: first substrate that is oppositely arranged and second substrate, and the liquid crystal layer between this first substrate and second substrate; This first substrate comprises one first substrate, one first polaroid and one first phase shift films, this second substrate comprises one second substrate, one second polaroid and one second phase shift films, this liquid crystal layer is between this first substrate and second substrate, this first polaroid and first phase shift films be successively set on this first substrate with the different side of this liquid crystal layer, this second polaroid and second phase shift films be successively set on this second substrate with the different side of this liquid crystal layer, this liquid crystal panel further comprises a dishful of shape liquid crystal molecule film, and it is arranged between this first phase shift films and this first substrate.
Compared to prior art, this liquid crystal panel compensates the light delay amount difference of this liquid crystal layer by this disc-like liquid crystal molecular film, and this disc-like liquid crystal molecular film can dwindle the difference of all directions light delay amount, thereby makes the contrast of this liquid crystal panel higher, the visual angle is wider.
[description of drawings]
Fig. 1 is the synoptic diagram of a kind of liquid crystal panel in the prior art.
Fig. 2 is the liquid crystal layer principle of work synoptic diagram of liquid crystal panel shown in Figure 1.
Fig. 3 is the synoptic diagram of the utility model liquid crystal panel first embodiment.
Fig. 4 is the synoptic diagram of the utility model liquid crystal panel second embodiment.
Fig. 5 is the synoptic diagram of the utility model liquid crystal panel the 3rd embodiment.
[embodiment]
The utility model liquid crystal panel first embodiment as shown in Figure 3, this liquid crystal panel 200 comprises first substrate 210, liquid crystal layer 220 and second substrate 230, these two substrates 210 and 230 are oppositely arranged, this liquid crystal layer 220 is between these two substrates 210 and 230.
This first substrate 210 comprises first polaroid 211, first phase shift films 213, the first disc-like liquid crystal molecular film (Discotic 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 phase shift films 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 phase shift films 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 phase shift films 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 formed for twisted nematic liquid crystals.This first alignment film 219 and second alignment film 239 are horizontal direction matching, the tilt angle of these two alignment films 219,239 (Pretilt Angle) be 0 the degree to 15 the degree, the alignment direction of this second alignment film 239 becomes 0 to spend to an angle of 90 degrees with the alignment direction of this first alignment film 219.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.These two phase shift films 213,233 are the uniaxial phase retardation film, as quarter-wave plate or wideband quarter wave plate.
The slow axis of this first phase shift films 213 is vertical mutually with the slow axis of this second phase shift films 233, the polarizing axis of this first polaroid 211 is vertical mutually with the polarizing axis of this second polaroid 231, the slow axis of this first phase shift films 213 becomes miter angle with the polarizing axis of this first polaroid 211, and the slow axis of this second phase shift films 233 becomes miter angle with the polarizing axis of this second polaroid 231.
This first disc-like liquid crystal molecular film 214 and the second disc-like liquid crystal molecular film 234 are mixed type (Hybird) structure.The molecules align direction of this first disc-like liquid crystal molecular film 214 is parallel to the alignment direction of this first alignment film 219.The molecules align direction of this second disc-like liquid crystal molecular film 234 is parallel to the alignment direction of this second alignment film 239.The molecule tilt angle of this first disc-like liquid crystal molecular film 214 contiguous these first substrate, 215 1 sides be 0 degree to 45 degree, the molecule tilt angle of these first disc-like liquid crystal molecular film, 214 contiguous these first phase shift films, 213 1 sides is that 45 degree are to 90 degree.The molecule tilt angle of this second disc-like liquid crystal molecular film 234 contiguous these second substrate, 235 1 sides be 0 degree to 45 degree, the molecule tilt angle of these second disc-like liquid crystal molecular film, 234 contiguous these second phase shift films, 233 1 sides is that 45 degree are to 90 degree.
Compared to prior art, this liquid crystal panel 202 by 214,234 compensation of this disc-like liquid crystal molecular film since near the liquid crystal molecule the alignment film 219,239 can not be fully make these liquid crystal layer 220 all directions light delay amount differences along direction arrangement perpendicular to substrate 215,235, this disc-like liquid crystal molecular film 214,234 can dwindle the difference of all directions light delay amount, thereby makes the contrast of this liquid crystal panel 202 higher, the visual angle is wider.
The utility model liquid crystal panel second embodiment as shown in Figure 4, this liquid crystal panel 300 comprises first substrate 310, liquid crystal layer 320 and second substrate 330, these two substrates 310,330 are oppositely arranged, this liquid crystal layer 320 is between these two substrates 310,330.
This first substrate 310 comprises first polaroid 311, first phase shift films 313, 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, first phase shift films 313, 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, second phase shift films 333, 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, second phase shift films 333, second substrate 335, pixel electrode 337 and second alignment film 339.
This liquid crystal layer 320 is formed for twisted nematic liquid crystals.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 becomes 0 to spend to an angle of 90 degrees with the alignment direction of this first alignment film 319.This public electrode 317 is a transparent conductive material with pixel electrode 337, as tin indium oxide or indium zinc oxide.This first substrate 315 and second substrate 335 are transparent material, as glass or quartz.
The slow axis of this first phase shift films 313 is vertical mutually with the slow axis of this second phase shift films 333, the polarizing axis of this first polaroid 311 is vertical mutually with the polarizing axis of this second polaroid 331, the slow axis of this first phase shift films 313 becomes miter angle with the polarizing axis of this first polaroid 311, and the slow axis of this second phase shift films 333 becomes miter angle with the polarizing axis of this second polaroid 331.
This disc-like liquid crystal molecular film 314 is a hybrid architecture.The molecules align direction of this disc-like liquid crystal molecular film 314 is parallel to the angular bisector direction of this first alignment film 319 and second alignment film, 339 alignment direction angles.The molecule tilt angle of this disc-like liquid crystal molecular film 314 contiguous these first substrate, 315 1 sides be 0 degree to 45 degree, the molecule tilt angle of these disc-like liquid crystal molecular film 314 contiguous these first phase shift films, 313 1 sides is that 45 degree are to 90 degree.
Compared to prior art, this liquid crystal panel 302 compensates by this disc-like liquid crystal molecular film 314 because near the liquid crystal molecules the alignment film 319,339 can not make that along arranging perpendicular to the direction of substrate 315,335 these liquid crystal layer 320 all directions light delay amounts are inequality fully, this disc-like liquid crystal molecular film 314 can dwindle the difference of all directions light delay amount, thereby makes the contrast of this liquid crystal panel 302 higher, the visual angle is wider.
The 3rd embodiment of the utility model liquid crystal panel as shown in Figure 5, the present embodiment and the second embodiment difference are: the disc-like liquid crystal molecular film 434 of this liquid crystal panel 400 is arranged between this second phase shift films 433 and this second substrate 435.The molecules align direction of this disc-like liquid crystal molecular film 434 is parallel to the angular bisector direction of this first alignment film 419 and second alignment film, 439 alignment direction angles.
The molecule tilt angle of this disc-like liquid crystal molecular film 434 contiguous these second substrate, 435 1 sides be 0 degree to 45 degree, the molecule tilt angle of these second disc-like liquid crystal molecular film, 434 contiguous these second phase shift films, 433 1 sides is that 45 degree are to 90 degree.
Claims (10)
1. liquid crystal panel, it comprises: first substrate that is oppositely arranged and second substrate, and the liquid crystal layer between this first substrate and second substrate; This first substrate comprises one first substrate, one first polaroid and one first phase shift films, this second substrate comprises one second substrate, one second polaroid and one second phase shift films, this liquid crystal layer is between this first substrate and second substrate, this first polaroid and first phase shift films be successively set on this first substrate with the different side of this liquid crystal layer, this second polaroid and second phase shift films be successively set on this second substrate with the different side of this liquid crystal layer, it is characterized in that: this liquid crystal panel further comprises a dishful of shape liquid crystal molecule film, and it is arranged between this first phase shift films and this first substrate.
2. liquid crystal panel as claimed in claim 1 is characterized in that: this liquid crystal panel 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.
3. liquid crystal panel as claimed in claim 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 becomes 0 to spend to an angle of 90 degrees with the alignment direction of this first alignment film.
4. liquid crystal panel as claimed in claim 3 is characterized in that: the molecules align direction of this disc-like liquid crystal molecular film is the angular bisector direction of this first alignment film alignment direction and this second alignment film alignment direction angle; The molecule tilt angle of contiguous this first substrate, one side of this disc-like liquid crystal molecular film be 0 degree to 45 degree, the molecule tilt angle of contiguous this first phase shift films, one side of this disc-like liquid crystal molecular film is that 45 degree are to 90 degree.
5. liquid crystal panel as claimed in claim 1 is characterized in that: this liquid crystal panel further comprises another disc-like liquid crystal molecular film, and this another disc-like liquid crystal molecular film is arranged between this second phase shift films and this second substrate.
6. liquid crystal panel as claimed in claim 5 is characterized in that: this liquid crystal panel 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.
7. liquid crystal panel as claimed in claim 6 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 becomes 0 to spend to an angle of 90 degrees with the alignment direction of this first alignment film.
8. liquid crystal panel as claimed in claim 7 is characterized in that: the molecules align direction of the disc-like liquid crystal molecular film of contiguous this first substrate is parallel to the alignment direction of this first alignment film; The molecules align direction of the disc-like liquid crystal molecular film of contiguous this second substrate is parallel to the alignment direction of this second alignment film; The molecule tilt angle of contiguous this first substrate, one side of the disc-like liquid crystal molecular film of this first substrate of this vicinity be 0 degree to 45 degree, the molecule tilt angle of contiguous this first phase shift films, one side is that 45 degree are to 90 degree; The molecule tilt angle of contiguous this second substrate, one side of the disc-like liquid crystal molecular film of this second substrate of this vicinity be 0 degree to 45 degree, the molecule tilt angle of contiguous this second phase shift films, one side is that 45 degree are to 90 degree.
9. as claim 1 or 5 described liquid crystal panels, it is characterized in that: the polarizing axis of this first polaroid is vertical mutually with the polarizing axis of this second polaroid, and the slow axis of this first phase shift films is vertical mutually with the slow axis of this second phase shift films.
10. as claim 1 or 5 described liquid crystal panels, it is characterized in that: these two phase shift films are quarter-wave plate or wideband quarter wave plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119946 CN2852186Y (en) | 2005-12-01 | 2005-12-01 | Liquid crystal panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520119946 CN2852186Y (en) | 2005-12-01 | 2005-12-01 | Liquid crystal panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2852186Y true CN2852186Y (en) | 2006-12-27 |
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ID=37586145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520119946 Expired - Fee Related CN2852186Y (en) | 2005-12-01 | 2005-12-01 | Liquid crystal panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2852186Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965345A (en) * | 2015-07-13 | 2015-10-07 | 京东方科技集团股份有限公司 | Backlight module and display screen |
-
2005
- 2005-12-01 CN CN 200520119946 patent/CN2852186Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104965345A (en) * | 2015-07-13 | 2015-10-07 | 京东方科技集团股份有限公司 | Backlight module and display screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061227 Termination date: 20141201 |
|
| EXPY | Termination of patent right or utility model |