CN201654389U - Liquid crystal display - Google Patents
Liquid crystal display Download PDFInfo
- Publication number
- CN201654389U CN201654389U CN2010201587585U CN201020158758U CN201654389U CN 201654389 U CN201654389 U CN 201654389U CN 2010201587585 U CN2010201587585 U CN 2010201587585U CN 201020158758 U CN201020158758 U CN 201020158758U CN 201654389 U CN201654389 U CN 201654389U
- Authority
- CN
- China
- Prior art keywords
- polarized light
- polaroid
- lcd
- liquid crystal
- phase compensation
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
Abstract
The embodiment of the utility model discloses a liquid crystal display, which comprises a liquid crystal box, a face polaroid, a bottom polaroid and a phase compensating film arranged at the outer side of the face polaroid, wherein the phase compensating film converts linear polarized light emitted out from the face polaroid into circular polarized light or elliptical polarized light. The phase compensating film arranged at the outer side of the face polaroid in the liquid crystal display disclosed by the utility model converts the linear polarized light emitted out from the face polaroid into the circular polarized light or the elliptical polarized light, when users wear polarized light sunglasses to watch the liquid crystal display, light extinction phenomenon can not occur no matter how much degree is an angle between an absorption shaft of the polarized light sunglasses and an absorption shaft of the face polaroid, and the potential safety hazard caused by the light extinction phenomenon is eliminated.
Description
Technical field
The utility model relates to the display technology field, relates in particular to a kind of LCD.
Background technology
Along with development of electronic technology, LCD more and more appears in people's the life.Present LCD mainly comprises liquid crystal cell 1, face polaroid 2 and end polaroid 3 (Fig. 1 shows its structure), liquid crystal cell 1 mainly is made up of upper substrate 11, infrabasal plate 12 and the liquid crystal 13 that is poured between the two-layer substrate, face polaroid 2 is arranged at the outside of upper substrate 11, and end polaroid 3 is arranged at the outside of infrabasal plate 12.The light that penetrates from LCD face polaroid 2 is linearly polarized light.
When the user wears the polarisation sunglasses in order to reduce light to the stimulation of eyes, when if the absorption axes of the face polaroid of the absorption axes of polarisation sunglasses and LCD is in parastate, image on the LCD that the user sees is the most clearly, from parallel direction when vertical direction is rotated the polarisation sunglasses gradually, both absorption axes are changed to plumbness gradually from parastate, the deepening gradually of image on the LCD that the user sees, this phenomenon is called frosting phenomenon, when both absorption axes are in plumbness, the user can't see the image on the LCD, and be exactly the full-dull phenomenon this moment.
The user is when watching the image of LCD, certain deflection can take place in head, after head deflection, angle between the absorption axes of the absorption axes of the polarisation sunglasses that the user wore and the face polaroid of LCD changes, frosting phenomenon can take place in this moment, when if the angle of head rotation is big, also the full-dull phenomenon might take place, the user can't see the image on the LCD, if this LCD is when being applied to the vehicles such as automobile and using as car-mounted device, the driver can't see the image of LCD clearly, just very likely has potential safety hazard, and lives and properties are caused damage.
The utility model content
In view of this, the purpose of this utility model is to provide a kind of LCD, can eliminate the frosting phenomenon of user when wearing the polarisation sunglasses and watch LCD.
For achieving the above object, the utility model provides following technical scheme:
A kind of LCD comprises: liquid crystal cell, face polaroid, end polaroid and be arranged at the phase compensation film in the face polaroid outside, described phase compensation film will be transformed to circularly polarized light or elliptically polarized light from the linearly polarized light that described polaroid penetrates.
Preferably, in above-mentioned LCD, the retardation of phase compensation film is the odd-multiple of λ/4.
Preferably, in above-mentioned LCD, the retardation of phase compensation film is 100nm～180nm.
Preferably, in above-mentioned LCD, the angle between the absorption axes of the slow axis of phase compensation film and described polaroid is 40 °～50 °.
Preferably, in above-mentioned LCD, the angle between the absorption axes of the slow axis of phase compensation film and described polaroid is 45 °.
Preferably, in above-mentioned LCD, the phase compensation film is adhered to the outside of described polaroid by sticker.
Preferably, described LCD is twisted nematic liquid crystal display, super twisted nematic liquid crystal display or Thin Film Transistor-LCD.
This shows, the beneficial effects of the utility model are: the phase compensation film that is arranged at the face polaroid outside, to be converted to circularly polarized light or elliptically polarized light from the linearly polarized light that the face polaroid penetrates, frosting phenomenon can not take place regardless of the angle between polarisation sunglasses absorption axes and the face polaroid absorption axes in this moment.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment, to do simple introduction to the accompanying drawing of required use among the embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of available liquid crystal display;
Fig. 2 is the structural representation of the disclosed LCD of the utility model.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making under the creative work prerequisite, and the every other embodiment that is obtained belongs to the utility model protection domain.
The utility model discloses a kind of LCD, the light that penetrates from this LCD is circularly polarized light or elliptically polarized light, and the user frosting phenomenon can not take place when wearing the polarisation sunglasses and watch this LCD.
Referring to Fig. 2, Fig. 2 is the structural representation of the disclosed LCD of the utility model.Comprise: liquid crystal cell 1, face polaroid 2, end polaroid 3 and phase compensation film 4.
Wherein, liquid crystal cell 1 comprises: upper substrate 11, infrabasal plate 12 and liquid crystal 13, liquid crystal 13 are poured between upper substrate 11 and the infrabasal plate 12.End polaroid 3 is arranged at the outside of infrabasal plate 12, and face polaroid 2 is arranged at the outside of upper substrate 11, and phase compensation film 4 is arranged on the outside of face polaroid 2.
The light that penetrates from face polaroid 2 is linearly polarized light, the phase compensation film 4 that is arranged on face polaroid 2 outsides can change the polarization state of light, linearly polarized light is converted to circularly polarized light or elliptically polarized light, can know in conjunction with optics general knowledge, circularly polarized light or elliptically polarized light approach natural light, its direction vector is atwirl, no matter be any angle between the absorption axes of the face polaroid 2 of the absorption axes of polarisation sunglasses and LCD this moment, frosting phenomenon can not take place on LCD.
The user is in the process of watching the disclosed LCD of the utility model, even if rotation has taken place in user's head, cause the angle between the absorption axes of the absorption axes of the polarisation sunglasses that the user wears and face polaroid 2 to change, the problem that the user does not see the LCD image can not take place.If this LCD occurs as car-mounted device, stopped that the driver does not see the image in the LCD and the potential safety hazard that causes, for the safety of lives and properties provides safeguard.
The parameter of following contraposition phase compensation film is selected according to describing.
The linearly polarized light of supposing to incide on the phase compensation film has definite vibration plane, and the X-axis of vibration plane and the electric vector of Y-axis can be expressed as:
Wherein, A is the amplitude of incident light, and ω is an angular frequency,
Be the phasing degree, λ is a light wavelength, and:
Order:
τ＝ωt (1-3)
Then formula (1-1) can change into:
Order:
Wherein δ is the phase differential of incident light at X-axis and Y-axis component;
Then have:
Respectively square then addition is then with formula (1-6) equation both sides:
By the synthetic equation of locus of formula (1-7) vertical vibration, when phasic difference δ=± during pi/2, obtain the equation of locus of formula (1-8):
Hence one can see that, and a branch of linearly polarized light incides on the phase compensation film 4, and emergent light is that the condition of elliptically polarized light is:
E
xAnd E
yBetween phasic difference δ=± pi/2.Because
Itself being caused by phase compensation film 4, is the phase compensation film of λ/4 odd-multiple so select retardation for use.
Selecting retardation in force is that the λ/phase compensation film 4 of 4 odd-multiple is arranged at the outside of face polaroid 2, and the linearly polarized light that penetrates from face polaroid 2 is converted into elliptically polarized light.
Because the emergent light of LCD changes in visible-range, the retardation of phase compensation film 4 is that the odd-multiple of λ/4 is a relative set wave long value λ, can not same effect all be arranged to all wavelength, the wavelength value of face polaroid 2 emergent lights and the retardation of phase compensation film 4 differ big more, the ratio of the major and minor axis of the elliptically polarized light that converts to is high more, and the effect that also promptly is converted to circularly polarized light is poor more.
In order farthest to be equilibrated at the conversion effect of the linearly polarized light of all wavelengths in the visible-range, what the relative wavelength value λ of phase compensation film 4 retardations adopted is the wavelength value of zone line in the visible-range, get the arbitrary value between 400nm～720nm, the retardation of corresponding phase compensation film 4 is 100nm～180nm.
Same, for the ratio of the major and minor axis that reduces elliptically polarized light, slow axis and face polaroid 2 absorption axes angles that phase compensation film 4 is set are 40 °～50 °.Because the major axis a of elliptically polarized light
x=Acos α, minor axis a
y=Asin α is when angle α is in 40 ° between 50 ° the time, a
xWith a
yValue comparatively approaching, can reduce the ratio of the major and minor axis of elliptically polarized light, make elliptically polarized light more approach circularly polarized light.Because circularly polarized light is to approach natural light most, not only can eliminate frosting phenomenon this moment, the visual fatigue in the time of can also alleviating the user and watch LCD.
Work as a
x=a
yThe time, formula (1-8) becomes round equation.
Hence one can see that, and a branch of linearly polarized light incides on the phase compensation film 4, and emergent light is that the condition of circularly polarized light is:
(1) E
xAnd E
yBetween phasic difference δ=± pi/2;
(2) E
xAnd E
yAmplitude a
x=a
y
Because
Itself being caused by phase compensation film 4, is the phase compensation film of λ/4 odd-multiple so select retardation for use.The amplitude of supposing incident ray polarized light is A, and the angle of its direction of vibration and X-axis is α, and a
x=Acos α, a
y=Asin α.Make a
x=a
y, α is necessary for 45 °.
In force, when the absorption axes angle that the slow axis of phase compensation film 4 and face polaroid 2 be set is 45 °, can convert a kind of linearly polarized light of fixed wave length to circularly polarized light, the light of other wavelength is converted to elliptically polarized light, eliminate frosting phenomenon and significantly alleviate visual fatigue.
Phase compensation film 4 can be adhered to the outside of face polaroid 2 by sticker when manufacturing LCD.
The disclosed LCD of the utility model can be twisted nematic liquid crystal display, super twisted nematic liquid crystal display or Thin Film Transistor-LCD.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (7)
1. LCD, comprise liquid crystal cell, face polaroid and end polaroid, it is characterized in that, further comprise: be arranged at the phase compensation film in the face polaroid outside, described phase compensation film will be transformed to circularly polarized light or elliptically polarized light from the linearly polarized light that described polaroid penetrates.
2. LCD according to claim 1 is characterized in that, the retardation of described phase compensation film is the odd-multiple of λ/4.
3. LCD according to claim 2 is characterized in that, the retardation of described phase compensation film is 100nm～180nm.
4. LCD according to claim 3 is characterized in that, the angle between the absorption axes of the slow axis of described phase compensation film and described polaroid is 40 °～50 °.
5. LCD according to claim 4 is characterized in that, the angle between the absorption axes of the slow axis of described phase compensation film and described polaroid is 45 °.
6. LCD according to claim 1 is characterized in that, described phase compensation film is adhered to the outside of described polaroid by sticker.
7. LCD according to claim 1 is characterized in that, described LCD is twisted nematic liquid crystal display, super twisted nematic liquid crystal display or Thin Film Transistor-LCD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201587585U CN201654389U (en) | 2010-04-12 | 2010-04-12 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201587585U CN201654389U (en) | 2010-04-12 | 2010-04-12 | Liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201654389U true CN201654389U (en) | 2010-11-24 |
Family
ID=43119633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201587585U Expired - Lifetime CN201654389U (en) | 2010-04-12 | 2010-04-12 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201654389U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833703A (en) * | 2010-03-05 | 2010-09-15 | 哈尔滨天源石化工程有限责任公司 | Petroleum depot management information integrating device and method for integrating data of each subsystem in oil depot |
| CN104155793A (en) * | 2014-07-22 | 2014-11-19 | 京东方科技集团股份有限公司 | Display device |
| CN105103043A (en) * | 2013-04-10 | 2015-11-25 | 日本瑞翁株式会社 | Capacitive touch panel display device |
| CN110873976A (en) * | 2018-08-31 | 2020-03-10 | 西安中兴新软件有限责任公司 | Terminal equipment and display control method |
| CN110908169A (en) * | 2018-09-14 | 2020-03-24 | 夏普株式会社 | Liquid crystal display panel |
| CN111258109A (en) * | 2020-03-11 | 2020-06-09 | Oppo广东移动通信有限公司 | Display device |
| CN113946070A (en) * | 2021-09-26 | 2022-01-18 | 深圳市三利谱光电科技股份有限公司 | Phase delay polaroid, processing technology thereof and optical display device |
| WO2023103676A1 (en) * | 2021-12-08 | 2023-06-15 | 惠州Tcl移动通信有限公司 | Display panel and electronic device |
-
2010
- 2010-04-12 CN CN2010201587585U patent/CN201654389U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101833703A (en) * | 2010-03-05 | 2010-09-15 | 哈尔滨天源石化工程有限责任公司 | Petroleum depot management information integrating device and method for integrating data of each subsystem in oil depot |
| CN101833703B (en) * | 2010-03-05 | 2014-05-21 | 哈尔滨天源石化工程有限责任公司 | Petroleum depot management information integrating device and method for integrating data of each subsystem in oil depot |
| CN105103043A (en) * | 2013-04-10 | 2015-11-25 | 日本瑞翁株式会社 | Capacitive touch panel display device |
| CN104155793A (en) * | 2014-07-22 | 2014-11-19 | 京东方科技集团股份有限公司 | Display device |
| CN104155793B (en) * | 2014-07-22 | 2017-02-15 | 京东方科技集团股份有限公司 | Display device |
| CN110873976A (en) * | 2018-08-31 | 2020-03-10 | 西安中兴新软件有限责任公司 | Terminal equipment and display control method |
| CN110908169A (en) * | 2018-09-14 | 2020-03-24 | 夏普株式会社 | Liquid crystal display panel |
| CN110908169B (en) * | 2018-09-14 | 2022-10-04 | 夏普株式会社 | Liquid crystal display panel |
| CN111258109A (en) * | 2020-03-11 | 2020-06-09 | Oppo广东移动通信有限公司 | Display device |
| CN113946070A (en) * | 2021-09-26 | 2022-01-18 | 深圳市三利谱光电科技股份有限公司 | Phase delay polaroid, processing technology thereof and optical display device |
| WO2023103676A1 (en) * | 2021-12-08 | 2023-06-15 | 惠州Tcl移动通信有限公司 | Display panel and electronic device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201654389U (en) | Liquid crystal display | |
| JP5719343B2 (en) | Composite polarizing plate set and IPS mode liquid crystal display device having the same | |
| US7075605B2 (en) | HAN-mode liquid crystal display having a phase delay value (dΔn) of 0.36-0.40 μm | |
| US20040046927A1 (en) | Polarized and non-polarized bifocal spectacles | |
| WO2009054204A1 (en) | Laminated optical film, liquid crystal panel, and liquid crystal display | |
| US10317692B2 (en) | Stereoscopic display for naked eyes | |
| TW200700848A (en) | Vertically aligned liquid crystal display | |
| TW200519428A (en) | Circular polarizer, vertical-alignment liquid crystal display panel and methods manufacturing the same | |
| US9638957B2 (en) | Liquid crystal display provided with viewing angle compensation | |
| TW200619698A (en) | Optical film and image viewing display | |
| CN202886791U (en) | Viewing angle compensation device and vertical array liquid crystal display (VA-LCD) panel and LCD device | |
| US20180314109A1 (en) | Liquid crystal display panel | |
| WO2011156531A3 (en) | Stereoscopic liquid crystal display systems | |
| US20070247578A1 (en) | Liquid crystal display | |
| CN101292191A (en) | Liquid crystal display | |
| CN101271201A (en) | Optical assembly capable of changing polarized light state and LCD device | |
| CN203849525U (en) | 3d display device | |
| CN202067049U (en) | Novel liquid crystal three-dimensional (3D) spectacles and display system for universal type 3D spectacles | |
| CN203444208U (en) | Liquid crystal display device and display terminal | |
| JPH03174512A (en) | Liquid crystal display element | |
| CN204964952U (en) | Display panel and LCD who uses this display panel | |
| CN101833197B (en) | Liquid crystal display | |
| US8026998B2 (en) | Variable contrast, wide viewing angle liquid crystal light attenuation filter | |
| US7589816B2 (en) | Display device with a black-optimizing bistable nematic screen and method for the definition of said device | |
| WO1996006380A3 (en) | Liquid crystal display device and retardation foil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |