CN202018548U - Vertical alignment (VA) type time sequence color liquid crystal display - Google Patents
Vertical alignment (VA) type time sequence color liquid crystal display Download PDFInfo
- Publication number
- CN202018548U CN202018548U CN2011200832531U CN201120083253U CN202018548U CN 202018548 U CN202018548 U CN 202018548U CN 2011200832531 U CN2011200832531 U CN 2011200832531U CN 201120083253 U CN201120083253 U CN 201120083253U CN 202018548 U CN202018548 U CN 202018548U
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- liquid crystal
- crystal display
- time sequence
- color
- film
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 22
- 239000003086 colorant Substances 0.000 claims description 8
- 239000005357 flat glass Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000004642 Polyimide Substances 0.000 abstract 2
- 239000011521 glass Substances 0.000 abstract 2
- 229920001721 polyimide Polymers 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- 229910003437 indium oxide Inorganic materials 0.000 abstract 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 abstract 1
- 241000269913 Pseudopleuronectes americanus Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Liquid Crystal (AREA)
Abstract
The utility model discloses a VA type time sequence color liquid crystal display, which comprises a time sequence impulse regulator, a display driver, a three-primary-color backlight source and a liquid crystal display screen, wherein the cavity of the liquid crystal display screen consists of an upper piece of substrate glass, a lower piece of substrate glass, a polaroid and a slant, and liquid crystals with negative dielectric anisotropy are filled in the cavity; and a polyimide (PI) film, which has high pretilt angle and high dipole moment is formed on a tin-doped indium oxide (ITO) film. The liquid crystal display screen is formed by filling the liquid crystals with negative dielectric anisotropy, the liquid crystal molecules of the time sequence control liquid crystal display is arranged in a vertical alignment (VA) mode instead of the conventional twisted nematic (TN) or super twisted nematic (STN) mode, color filter film is not required, and the VA type time sequence color liquid crystal display has the advantages of bright display color and low cost and has the characteristics of black background, high contrast and wide view angle.
Description
Technical field
The utility model relates to the improvement of colour liquid crystal display device structure, has specifically provided a kind of VA type sequential colorization LCD, belongs to the LCD Technology field.
Background technology
LCD has low-voltage, little power consumption, slab construction, radiationless, long-life principal advantages.Present liquid crystal display displays pattern is divided into TN (aligned twisted), STN (supertwist arrangement) type, IPS (electrode is in the same side), OCB (optical compensation birefringence), VA dissimilar display modes such as (homeotropic alignments).
Use the most generally TN type and STN type, what it was shown is black and white or monochromatic image, if mix color filter film, just can carry out colour demonstration.Because color film price is very expensive, the cost of manufacture height, and also the light transmittance is very low, needs the very high backlight of brightness to match.Recently the netrual colour filter coating of developing also can carry out colour by sequential control and show.Related content is in patent " a kind of sequential colorization LCD " (patent No.: 200920094442.1) deliver, can remedy the deficiency of color film preferably.But this display application also has the dissatisfactory place of display effect in some aspect, and for example: contrast is not high enough, carries on the back shortcomings such as the end is black inadequately when negativity shows.
Summary of the invention
A kind of VA type of the utility model sequential colorization LCD does not need color filter film, has the black back of the body end, high-contrast and the bright characteristics of display color.
The primary structure of the utility model VA type sequential colorization LCD is as follows: comprise that time sequential pulse regulator, display driver, three primary colours backlight and LCDs constitute, go out red (R), green (G), blue (B) three kinds of relevant high frequency clock signals by Signal Separation and drive respectively that LCDs shows and the three primary colours backlight is luminous; Wherein, constitute the cavity of LCDs, be filled with the liquid crystal material of negative dielectric anisotropic in the cavity by upper and lower two blocks base plate glass, polaroid, the fluid sealants that have an ITO film; On the ITO film, produce the PI film of high tilt angle, strong dipole moment.
The drive signal that is produced and export with display driver by the time sequential pulse regulator in the utility model drives LCDs respectively and shows by identical sequential with the three primary colours backlight, being higher than the critical bright threshold frequency that sparkles of human eye, utilize the human eyesight hysteresis characteristic to synthesize complete coloured image with sequential red green and blue image in sub-fields.Simultaneously, under this display mode, make the interior liquid crystal molecule of LCDs be the homeotropic alignment state, obtain unique display effect.
Realize that it is to output to the time sequential pulse regulator after by display driver picture signal being handled that sequential colorization shows; Two synchronizing signals that display driver also will be separated drive the three-color LED flicker of LCDs demonstration and three primary colours backlight respectively, the light of this flicker is when seeing through LCDs, be subjected to the modulation that the LCDs pixel shows, making does not have under the situation of color filter film in LCDs, and the display image that human eye is seen but is a coloured image.
Good effect of the present utility model is: adopt the liquid crystal that is filled with negative dielectric anisotropic to make LCDs, the liquid crystal molecule of sequential control LCD is changed into vertically (VA) type pattern of rows and columns by twisted-nematic (TN) type of routine or supertwist to row (STN) type pattern of rows and columns, do not need color filter film, have outside the advantage that display color is bright, cost is low, also possess the characteristics at the black back of the body end, high-contrast, wide visual angle.Since very black at the bottom of the back of the body of display screen, make the coloured image of demonstration clear more pleasing under the black back of the body the setting off at the end, be particularly suitable for vehicle-mounted demonstration product.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model fundamental diagram;
1, LCDs; 2, PI film; 3, ITO film; 4, base plate glass; 5, polaroid; 6, fluid sealant; 7, time sequential pulse regulator; 8, display driver; 9, three primary colours backlight; 10, light; 11, liquid crystal.
Embodiment
According to shown in Figure 1, the utility model mainly is made up of LCDs 1, three primary colours backlight (LED) 9 timely preface impulse regulators 7, display driver 8, wherein, constitute the cavity of LCDs 1 by upper and lower two blocks base plate glass 4, polaroid 5, the fluid sealants 6 that have an ITO film 3, be filled with the liquid crystal 11 of negative dielectric anisotropic in it; On ITO film 3, produce the PI film 2 of high tilt angle, strong dipole moment; The signal output part of display driver 7 connects three look backlights 9, drive and lighted and the identical coloured image of LCDs 1 display timing generator, coloured image is by being higher than the critical bright threshold frequency that sparkles of human eye the field pattern shape of sequential red green and blue to be synthesized, under this display mode, make the molecule of liquid crystal 11 in the LCDs 1 be the homeotropic alignment state.
As shown in Figure 1, LCDs 1 is not when having driving, and the molecules align of the liquid crystal 11 in it is vertical configuration; The light 10 that this moment, backlight 9 sent can not pass through LCDs, and LCDs 1 is black.
As shown in Figure 2, after LCDs 1 was driven, the molecule of liquid crystal 11 produced inclination under the electric field action between the upper and lower ITO film 3, and LCDs 1 presents transparence, the light 10 of three primary colours backlight 9 can see through LCDs 1, can see display color and image.
Claims (1)
1. a VA type sequential colorization LCD comprises time sequential pulse regulator (7), display driver (8), three primary colours backlight (9) and LCDs (1) formation, it is characterized in that:
Constitute the cavity of LCDs (1) by upper and lower two base plate glass (4) that have ITO film (3), polaroid (5), fluid sealant (6), be filled with the liquid crystal (11) of negative dielectric anisotropic in the cavity; On ITO film (3), be compounded with the PI film (2) of high tilt angle, strong dipole moment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200832531U CN202018548U (en) | 2011-03-26 | 2011-03-26 | Vertical alignment (VA) type time sequence color liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200832531U CN202018548U (en) | 2011-03-26 | 2011-03-26 | Vertical alignment (VA) type time sequence color liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202018548U true CN202018548U (en) | 2011-10-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200832531U Expired - Fee Related CN202018548U (en) | 2011-03-26 | 2011-03-26 | Vertical alignment (VA) type time sequence color liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202018548U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068328A (en) * | 2015-09-22 | 2015-11-18 | 武汉华星光电技术有限公司 | Method for manufacturing liquid-crystal display screen and liquid-crystal display screen |
| TWI672545B (en) * | 2018-05-04 | 2019-09-21 | 住華科技股份有限公司 | Display device |
| CN110488534A (en) * | 2019-08-21 | 2019-11-22 | 惠州市慧联智显工业系统有限公司 | A kind of dedicated BLU of time mixing color |
| CN116124028A (en) * | 2023-02-03 | 2023-05-16 | 电子科技大学 | Miniature composite double-frequency fringe projection module based on liquid crystal display |
-
2011
- 2011-03-26 CN CN2011200832531U patent/CN202018548U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105068328A (en) * | 2015-09-22 | 2015-11-18 | 武汉华星光电技术有限公司 | Method for manufacturing liquid-crystal display screen and liquid-crystal display screen |
| TWI672545B (en) * | 2018-05-04 | 2019-09-21 | 住華科技股份有限公司 | Display device |
| CN110488534A (en) * | 2019-08-21 | 2019-11-22 | 惠州市慧联智显工业系统有限公司 | A kind of dedicated BLU of time mixing color |
| CN116124028A (en) * | 2023-02-03 | 2023-05-16 | 电子科技大学 | Miniature composite double-frequency fringe projection module based on liquid crystal display |
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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: 20111026 Termination date: 20180326 |
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| CF01 | Termination of patent right due to non-payment of annual fee |