CN105404044A - LCD with optical compensation super twisted nematic phase negative reflection mode - Google Patents
LCD with optical compensation super twisted nematic phase negative reflection mode Download PDFInfo
- Publication number
- CN105404044A CN105404044A CN201510806069.8A CN201510806069A CN105404044A CN 105404044 A CN105404044 A CN 105404044A CN 201510806069 A CN201510806069 A CN 201510806069A CN 105404044 A CN105404044 A CN 105404044A
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- CN
- China
- Prior art keywords
- liquid crystal
- lcd
- optical compensation
- polaroid
- crystal display
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- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
- G02F1/133536—Reflective polarizers
Abstract
A LCD with an optical compensation super twisted nematic phase negative reflection mode comprises a liquid crystal box (10) and an upper Polaroid (20) and a lower Polaroid (30) pasted on the top and bottom of the liquid crystal box (10); the lower Polaroid (30) is a reflection sheet. By using the technical scheme, the negative LCD can have high contrast under a non-backlight source state; the stronger of the outer light, the clearer of the display content; the LCD can be used in outdoor bright light environment, and display is clear and readable, and contrast can be above 5:1 (theta=phi=0, 25 DEG C); the LCD with FSTN negative reflection mode needs no backlight source, is simple in structure, thin in total thickness, light in weight, and low in cost.
Description
Technical field
This aspect relates to lcd technology, particularly the manufacturing technology of negative aobvious liquid crystal display.
Background technology
Present liquid crystal display is current application flat-panel display device the most widely, in single color LCD display field, by display mode classification, has positivity display and negativity to show two classes: positivity shows, and background is white, and displaying contents is black; Negativity shows, and background is black, and displaying contents is white.The liquid crystal display of usual negativity display is transmission mode, and namely polaroid is all transmission sheet up and down, needs backlight and form liquid crystal display module in actual use together with liquid crystal display.If negative liquid crystal screen does not add backlight lightening, the content of liquid crystal display display can not see, and even cannot read, and therefore, negative aobvious liquid crystal display is all generally adopt backlight.Also negative aobvious liquid crystal display is had not adopt the technology of backlight at present, such as: China Patent No.: the patent of 201210359142.8, this patented technology does not also need backlight, but its lower polaroid adopts the polaroid of semi-transparent semi-reflecting pattern, the effectiveness comparison that this technology reflects on the one hand is poor, contrast is difficult to reach request for utilization, particularly under strong illumination, display effect or not ideal enough, and adopt silver-colored polaroid in this patent, add the cost of polaroid, in the market environment that the price of current liquid crystal display constantly reduces, too high cost is difficult to the accreditation obtaining market.
Summary of the invention
The invention provides a kind of negative aobvious liquid crystal display, adopt the polaroid of common pure reflection, solve the technical matters of poor contrast and high cost in prior art.
The present invention is for solve the problems of the technologies described above and the liquid crystal display provided comprises liquid crystal cell and is attached to the upper and lower upper polaroid of this liquid crystal cell and lower polaroid, and described lower polaroid is reflector plate.
Of the present invention further improvement is: described lower polaroid is the reflective polarizers with light enhancing effect, and described lower polaroid scribbles layer of fluorescent powder.
Of the present invention improvement further is again: in described liquid crystal cell, the square resistance of upper and lower ito glass is: 17-150 Ω/, and in described liquid crystal cell, the gap of upper and lower ito glass is: 3-20um.
The present invention adopts above-mentioned technical scheme, this negative liquid crystal display is made to have higher contrast under the state not having backlight, and ambient light is stronger, displaying contents is clearer, when using under the stronger environment of surround lighting out of doors, show clear readable, contrast can reach 5:1(Theta=phi=0,25 DEG C) more than; FSTN bears the liquid crystal display device of aobvious reflective-mode, does not need backlight, and structure is simple, and general thickness is thin, lightweight, cost is low.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic that the present invention bears aobvious liquid crystal display.
Embodiment
Accompanying drawings specific embodiments of the invention.
From in Fig. 1, the present invention has the liquid crystal display that optical compensation super-twist nematic bears aobvious reflective-mode, comprises liquid crystal cell 10 and is attached to the upper polaroid 20 of this liquid crystal cell about 10 and lower polaroid 30, and described lower polaroid 30 is reflector plate.The lower polaroid of negative liquid crystal screen of the present invention adopts the reflective polarizers with light enhancing effect, negative liquid crystal display reflective-mode does not need backlight, clearly displaying contents can be seen under extraneous (environment) light source, light source is weak also clearly can see display image, and external light source is stronger, show clearer.
From in Fig. 1, described lower polaroid 30 scribbles layer of fluorescent powder 40, on lower polaroid, layer of fluorescent powder is applied in the present invention, increase the contrast of liquid crystal display, particularly in the environment of high light, fluorescent powder can improve the sharpness of image more, unsharp problem is shown under can effectively compensating strong illumination, secondly, fluorescent powder also has the function storing luminous energy, can solve the problem of display resolution in the environment of strong and weak light change.
In liquid crystal cell 10 of the present invention, the square resistance of upper and lower ito glass is: 17-150 Ω/, and in liquid crystal cell 10, the gap of upper and lower ito glass is: 4-10um.The selection of glass square resistance is how many according to liquid crystal display driving way and shows size and determine, and when driving way is few, show area hour, uses large electric resistance glass as far as possible, can reduce cost of products under the prerequisite of guarantee display effect; The gap of upper and lower glass is determined according to the product of different technologies type (COG/TAB/COB) and the factor such as response time, display effect of product, and covering needs to realize facing application scenario that is extremely clear or pole wide viewing angle, more small-scale production control overflow is higher in gap, therefore, this patent selects above-mentioned parameter, can have better display effect.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (5)
1. one kind has the liquid crystal display that optical compensation super-twist nematic bears aobvious reflective-mode, comprise liquid crystal cell (10) and be attached to the upper and lower upper polaroid (20) of this liquid crystal cell (10) and lower polaroid (30), it is characterized in that: described lower polaroid (30) is reflector plate.
2. there is liquid crystal display that optical compensation super-twist nematic bears aobvious reflective-mode according to claim 1, it is characterized in that: described lower polaroid (30) is for having the reflective polarizers of light enhancing effect.
3. there is liquid crystal display that optical compensation super-twist nematic bears aobvious reflective-mode according to claim 1, it is characterized in that: described lower polaroid (30) scribbles layer of fluorescent powder (40).
4. there is the liquid crystal display that optical compensation super-twist nematic bears aobvious reflective-mode according to any one of claims 1 to 3, it is characterized in that: in described liquid crystal cell (10), the square resistance of upper and lower ito glass is: 17-150 Ω/.
5. there is the liquid crystal display that optical compensation super-twist nematic bears aobvious reflective-mode according to any one of claims 1 to 3, it is characterized in that: in described liquid crystal cell (10), the gap of upper and lower ito glass is: 3-20um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510806069.8A CN105404044A (en) | 2015-11-20 | 2015-11-20 | LCD with optical compensation super twisted nematic phase negative reflection mode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510806069.8A CN105404044A (en) | 2015-11-20 | 2015-11-20 | LCD with optical compensation super twisted nematic phase negative reflection mode |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105404044A true CN105404044A (en) | 2016-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510806069.8A Pending CN105404044A (en) | 2015-11-20 | 2015-11-20 | LCD with optical compensation super twisted nematic phase negative reflection mode |
Country Status (1)
| Country | Link |
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| CN (1) | CN105404044A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5006716A (en) * | 1989-02-22 | 1991-04-09 | Research Corporation Technologies, Inc. | Method and system for directional, enhanced fluorescence from molecular layers |
| US20070231505A1 (en) * | 2004-06-22 | 2007-10-04 | Fujifilm Corporation | Polarizing Plate and Liquid Crystal Display Device |
| CN101290434A (en) * | 2007-04-16 | 2008-10-22 | 三洋电机株式会社 | LCD appartus |
| CN102914894A (en) * | 2012-09-24 | 2013-02-06 | 亚世光电股份有限公司 | Negative liquid crystal display for no-backlight state |
| CN203950100U (en) * | 2014-07-08 | 2014-11-19 | 深圳晶华显示器材有限公司 | A kind of fluorescent type LCDs |
-
2015
- 2015-11-20 CN CN201510806069.8A patent/CN105404044A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5006716A (en) * | 1989-02-22 | 1991-04-09 | Research Corporation Technologies, Inc. | Method and system for directional, enhanced fluorescence from molecular layers |
| US20070231505A1 (en) * | 2004-06-22 | 2007-10-04 | Fujifilm Corporation | Polarizing Plate and Liquid Crystal Display Device |
| CN101290434A (en) * | 2007-04-16 | 2008-10-22 | 三洋电机株式会社 | LCD appartus |
| CN102914894A (en) * | 2012-09-24 | 2013-02-06 | 亚世光电股份有限公司 | Negative liquid crystal display for no-backlight state |
| CN203950100U (en) * | 2014-07-08 | 2014-11-19 | 深圳晶华显示器材有限公司 | A kind of fluorescent type LCDs |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170615 Address after: 528400 Guangdong city in Zhongshan province village of Torch Development Zone intersection Applicant after: Zhongshan rifda touch display technology Co. Ltd. Address before: 518000 C building, five and 308 Avenue, Guanlan community, Guanlan District, Longhua New District, Shenzhen, Guangdong Applicant before: Shenzhen Rifda LCD Co.,Ltd. ,OFF |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160316 |