| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 181 | LCD with a pair of retardation films on one side of liquid crystal layer | EP95106498.9 | 1995-04-28 | EP0679921A1 | 1995-11-02 | Abileah, Adiel; Vanderploeg,John; Xu, Gang |
A normally white twisted nematic liquid crystal display is disclosed having a pair of retardation films (7,9) disposed between the liquid crystal layer (11) and an adjacent polarizer (5), both retardation films being on one side of the liquid crystal layer. Both retardation films, if uniaxial, have retardation values of from about 100 - 200 nm. Optionally, biaxial retarders (nX > nY > nZ) may be used, such biaxial retarders having retardation values from about ΔZX = -100 to -200 nm, and ΔZY = -10 to -100 nm. Accordingly, inversion is reduced and contrast rations are improved at large viewing angles. |
||||||
| 182 | Homeotropic liquid crystal device | EP92117929.7 | 1992-10-20 | EP0538796A1 | 1993-04-28 | Clerc, Jean Frederic; Hirose, Shinichi |
A homeotropic liquid crystal display device with an optical compensator for widening the field of view. The liquid crystal display device includes: a nematic liquid crystal cell (10) in which molecules (8) are oriented substantially vertical to substrates in the absence of electric field, to exhibit a positive optical activity with an optical axis vertical to the substrates; a first retardation plate (2) on one side of the liquid crystal cell for providing a phase difference of λ/4, having a positive optical activity with an optical axis aligned in one in-plane direction parallel with the substrates; a first polarizer (1) outside of the first retardation plate, having a polarizing axis in an in-plane direction inclined by about 45 degrees relative to the optical axis of the first retardation plate; a second retardation plate (6) on the other side of the liquid crystal cell for providing a phase difference of λ/4, having a negative optical activity with an optical axis parallel with the optical axis of the first retardation plate; and a second polarizer (2) outside of the second retardation plate having a polarizing axis in an in-plane direction perpendicular to the polarizing axis of the first polarizer. |
||||||
| 183 | LIQUID CRYSTAL DISPLAY DEVICE AND POLARIZER PROTECTIVE FILM | US15944238 | 2018-04-03 | US20180224702A1 | 2018-08-09 | Takashi KURODA; Seiichi ISOJIMA; Norinaga NAKAMURA |
| The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx−ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°. | ||||||
| 184 | Liquid crystal panel and polarizing laminate for use in the liquid crystal panel | US14646355 | 2014-09-03 | US09927656B2 | 2018-03-27 | Toshiyuki Iida; Takeharu Kitagawa |
| A liquid crystal panel which is capable of significantly reducing a thickness thereof as compared to conventional liquid crystal panels, and, when used in a liquid crystal display device using a liquid crystal cell such as an IPS-type liquid crystal cell, reducing oblique light leakage in a black state of the liquid crystal display device to enhance contrast. | ||||||
| 185 | Liquid crystal display panel and liquid crystal display device | US15269300 | 2016-09-19 | US09904123B2 | 2018-02-27 | Koji Yonemura |
| A liquid crystal display panel includes switching elements, transparent pixel electrodes, and a transparent common electrode having a predetermined area overlapped with an upper layer of the transparent pixel electrode through an insulating film and driving liquid crystal with the transparent pixel electrode. In plane view, a shading layer covers at least one part of a conductive pattern where a light leakage occurs in front view by an alignment defect of the liquid crystal near a non-permeable conductive pattern disposed in the display region at the time of black display, and has eaves more protruding than the conductive pattern. The transparent common electrode is provided to overlap with the conductive pattern arranged to overlap with the light-shielding layer having the eaves in a side of the liquid crystal and to protrude compared with the light-shielding layer having the eaves in a planar view. | ||||||
| 186 | LIQUID CRYSTAL PANEL AND POLARIZING LAMINATE FOR USE IN THE LIQUID CRYSTAL PANEL | US15724726 | 2017-10-04 | US20180039138A1 | 2018-02-08 | Toshiyuki IIDA; Takeharu KITAGAWA |
| A liquid crystal panel which is capable of significantly reducing a thickness thereof as compared to conventional liquid crystal panels, and, when used in a liquid crystal display device using a liquid crystal cell such as an IPS-type liquid crystal cell, reducing oblique light leakage in a black state of the liquid crystal display device to enhance contrast. | ||||||
| 187 | Optical compensation film and liquid crystal display including the same | US13447805 | 2012-04-16 | US09851603B2 | 2017-12-26 | Hee Kyung Kim; Jang-Kun Song |
| A compensation film for a liquid crystal film includes a first layer including splayed rod-shaped nematic liquid crystal material and a second layer disposed on a surface of the first layer and including at least one of a biaxial layer and an A-plate. | ||||||
| 188 | Display device | US14178307 | 2014-02-12 | US09651827B2 | 2017-05-16 | Ta-Wei Yeh |
| A display device including a display panel, a first polarizer, a second polarizer, a first phase compensation film, and a second phase compensation film is provided. The first polarizer and the second polarizer are disposed on two sides of the display panel. The first polarizer has a first light-absorption axis, and the second polarizer has a second light-absorption axis. The first phase compensation film and the second phase compensation film are disposed between the first polarizer and the second polarizer. The second phase compensation film obeys a first formula: R λ1 λ1 > R λ2 λ2 > R λ3 λ3 , wherein Rλ1, Rλ2 and Rλ3 are horizontal phase retardation values of the second phase compensation film when wavelengths of lights passing through the second phase compensation film are respectively λ1, λ2 and λ3, and λ1<λ2<λ3. | ||||||
| 189 | Liquid crystal display provided with viewing angle compensation | US13703560 | 2012-10-08 | US09638957B2 | 2017-05-02 | Yafeng Yang; Guangkui Qin; Jiaoming Lu; Jaegeon You |
| An embodiment of present invention discloses a liquid crystal display provided with viewing angle compensation. The liquid crystal display provided with viewing angle compensation comprises a liquid crystal cell in a vertical arrangement, upper and lower polarizer sheets, and further comprises the first biaxial compensation film provided between the liquid crystal cell and the lower polarizer sheet, the second biaxial compensation film provided between the liquid crystal cell and the upper polarizer sheet, and a monoaxial compensation film provided at the upside and/or downside of the liquid crystal cell. The embodiment of present invention may be applicable for the viewing angle compensation in wide viewing-angle techniques. | ||||||
| 190 | Liquid crystal panel compensation structure and liquid crystal display apparatus | US14426739 | 2014-11-12 | US09535287B2 | 2017-01-03 | Bo Hai; Chih-tsung Kang |
| The present invention provides a liquid crystal panel compensation structure comprising two second compensation film disposed at two sides of a liquid crystal panel and a first compensation film disposed above one of the second compensation film; a liquid crystal layer comprising a plurality of liquid crystal molecules being disposed in the liquid crystal panel, a refractive index anisotropy of the liquid crystal layer being Δn, a depth of the liquid crystal layer being d, and a pretilt angle of the liquid crystal molecules being θ; the first compensation film being a biaxial compensation film, an in-plane compensation value thereof being Ro1, and a depth compensation value thereof being Rth1; each of the second compensation film being an uniaxial compensation film, and the depth compensation value thereof being Rth2, wherein 342.8 nm≦Δn·d≦361.4 nm, 85°≦θ<90°, 52 nm≦Ro1≦78 nm, 196 nm≦Rth1≦293 nm, Y1 nm≦Rth2≦Y2 nm, Y1=−0.50645·Rth1+164.1, and Y2=−0.003085·(Rth1)2+0.932·Rth1+23.7. The present invention further provides a liquid crystal display apparatus comprising the compensation structure described above. | ||||||
| 191 | LIQUID CRYSTAL PANEL COMPENSATION STRUCTURE AND LIQUID CRYSTAL DISPLAY APPARATUS | US14426739 | 2014-11-12 | US20160334662A1 | 2016-11-17 | Bo HAI; Chih-tsung KANG |
| The present invention provides a liquid crystal panel compensation structurecomprising two second compensation film disposed at two sides of a liquid crystal panel and a first compensation film disposed above one of te second compensation film; a liquid crystal layer comprising a plurality of liquid crystal molecules being disposed in the liquid crystal panel, a refractive index anisotropy of the liquid crystal layer being Δn, a depth of the liquid crystal layer being d, and a pretilt angle of the liquid crystal molecules being θ; the first compensation film being a biaxial compensation film, an in-plane compensation value thereof being Ro1, and a depth compensation value thereof being Rth1; each of the second compensation film being an uniaxial compensation film, and the depth compensation value thereof being Rth2, wherein 342.8 nm≦Δn·d≦361.4 nm, 85°≦θ<90°, 52 nm≦Ro1≦78 nm, 196 nm≦Rth1≦293 nm, Y1 nm≦Rth2≦Y2 nm, Y1=−0.50645·Rth1+164.1, and Y2=−0.003085·(Rth1)2+0.932·Rth1+23.7. The present invention further provides a liquid crystal display apparatus comprising the compensation structure described above. | ||||||
| 192 | LIQUID CRYSTAL DISPLAY | US14867876 | 2015-09-28 | US20160299371A1 | 2016-10-13 | Ji-Hoon KIM; Sang-Gu LEE; Seung Hee LEE; Hyo Sung HONG; Dae Won KIM |
| Disclosed is a liquid crystal display, including: a first substrate and a second substrate, which face each other; a color filter disposed on the first substrate; a liquid crystal layer interposed between the first substrate and the second substrate; a first polarizing plate disposed outside the first substrate; a first compensation film disposed outside the first polarizing plate; a second compensation film disposed outside the second substrate; and a second polarizing plate disposed outside the second compensation film, in which the second compensation film includes a biaxial film, and the first substrate and the second substrate include a poly-amide (PA) having an optical characteristic of a negative C-plate. | ||||||
| 193 | Liquid crystal display | US13963612 | 2013-08-09 | US09223172B2 | 2015-12-29 | Kyeong-Hyeon Kim; Jang-Kun Song |
| A liquid crystal display comprises: first and second panels facing each other; a compensation film and a first polarizer disposed on the first panel, the compensation film having phase retardation characteristics; and a second polarizer having a supporting film disposed on the second panel, the supporting film having phase retardation characteristics. In alternative embodiments, a supporting film is used in place of the compensation film. The supporting film has retardation characteristics. | ||||||
| 194 | Liquid crystal panel and the liquid crystal display | US13981100 | 2013-06-27 | US09213200B2 | 2015-12-15 | Chih-tsung Kang; Bo Hai |
| A liquid crystal panel and a liquid crystal display are disclosed. The liquid crystal display includes a liquid crystal cell having a light incident side and a light emitting side, a first polarizer arranged on the light incident side of the liquid crystal panel, a second polarizer arranged on the light emitting side of the liquid crystal panel, and a half wave plate arranged between the first polarizer and the liquid crystal cell. An absorbing axis of the first polarizer is parallel to the absorbing axis of the second polarizer, and an angle between a slow axis of the half wave plate and the absorbing axis of the first polarizer is 45 or 135 degrees. In this way, the liquid crystal display with the two polarizers parallel to each other can be in all-black state when no voltage is applied. In addition, the contrast is greatly enhanced. | ||||||
| 195 | LIQUID CRYSTAL PANEL AND POLARIZING LAMINATE FOR USE IN THE LIQUID CRYSTAL PANEL | US14646355 | 2014-09-03 | US20150293407A1 | 2015-10-15 | Toshiyuki Iida; Takeharu Kitagawa |
| A liquid crystal panel which is capable of significantly reducing a thickness thereof as compared to conventional liquid crystal panels, and, when used in a liquid crystal display device using a liquid crystal cell such as an IPS-type liquid crystal cell, reducing oblique light leakage in a black state of the liquid crystal display device to enhance contrast. | ||||||
| 196 | Liquid crystal display | US13704630 | 2012-09-06 | US09158157B2 | 2015-10-13 | Chihtsung Kang; Bo Hai |
| An LCD includes a TAC film, a PVA film, a biaxial compensation film, an LC cell, a second TAC film, a second PVA film, and a third TAC film from the incident surface to the emitting surface. The biaxial compensation film is used for providing a first retardation value and a second retardation value by adjusting thickness and by adjusting a first refractive index, a second refractive index, and a third refractive index. The second TAC film is used for providing a third retardation value by adjusting thickness and by adjusting a fourth refractive index, a fifth refractive index, and a sixth refractive index corresponding to the light in the first direction, the light in the second direction, and the light in the third direction, respectively. Leakage of light is controlled according to the first retardation value, the second retardation value, and the third retardation value in the LCD. | ||||||
| 197 | Compensation system and liquid crystal display apparatus for liquid crystal panel | US13704987 | 2012-11-30 | US09019452B2 | 2015-04-28 | Chih-tsung Kang; Bo Hai |
| The present invention discloses a compensation system and a liquid crystal display apparatus used for a liquid crystal panel. The compensation system comprises a first biaxial retardation film and a second biaxial retardation film respectively disposed on either side of the liquid crystal panel. An in-plane retardation value of the first biaxial retardation film at a wavelength of 550 nm is Ro1. An out-of-plane retardation value in a thickness direction is Rth1. An in-plane retardation value of the second biaxial retardation film at the wavelength of 550 nm is Ro2. An out-of-plane retardation value in a thickness direction is Rth2. Wherein: 30.8 nm≦Ro1≦91 nm; 70.4 nm≦Rth1≦208 nm; 21 nm≦Ro2≦93.8 nm; Y1≦Rth2≦Y2; Y1=0.00424817×Rth12−1.9854256×Rth1+277.7: Y2=−0.003333×Rth12−0.033459×Rth1+234.2. The present invention effectively reduces light leakage of the liquid crystal panel in dark mode by disposing the double-layered biaxial retardation films having reasonable retardation values. | ||||||
| 198 | Optical compensation structure and display device | US13702583 | 2012-09-07 | US09011993B2 | 2015-04-21 | Chih-Tsung Kang; Bo Hai |
| An optical compensation structure and a display device are disclosed. The former comprises a front side polarizer and a rear side polarizer arranged at both sides of a VA liquid crystal unit; the front side polarizer includes a front side polarization unit and a first front side TAC film; the absorption axis of the front side polarization unit is perpendicular to the horizontal normal of the VA liquid crystal unit; the rear side polarizer includes a rear side polarization unit and a biaxial film; and the absorption axis of the rear side polarization unit is parallel to the horizontal normal. The region having serious dark-state light leakage can be transferred from a horizontal viewing angle to a vertical viewing angle, which improves the display effect. Meanwhile, there is no addition of the number of layers of the biaxial film which reduces the cost. | ||||||
| 199 | VA-mode liquid-crystal display device | US13512562 | 2010-11-29 | US08976325B2 | 2015-03-10 | Makoto Ishiguro |
| Disclosed is a VA-mode liquid-crystal display device wherein the total of retardation along the thickness-direction at a wavelength of 550 nm of the color filter layer, RthCF(550), and retardation along the thickness-direction at a wavelength of 550 nm of the whole rear-side retardation region, Rthrear(550), satisfies following formula (I): (I) |RthCF(550)+Rthrear(550)|≦90 nm. | ||||||
| 200 | Liquid crystal display panel and liquid crystal display | US13491158 | 2012-06-07 | US08970462B2 | 2015-03-03 | Guangkui Qin; Jaegeon You; Teruaki Suzuki |
| This disclosure provides a liquid crystal display panel, comprising a first polarizer sheet, a liquid crystal layer and a second polarizer sheet from the bottom up in this order. A first biaxial ¼ wave plate and a first biaxial ½ wave plate for expanding the wavelength range of the first biaxial ¼ wave plate are provided, in order from the top down, between the liquid crystal layer and the first polarizer sheet; and a second biaxial ¼ wave plate and a second biaxial ½ wave plate for expanding the wavelength range of the second biaxial ¼ wave plate are, in order from the bottom up, between the liquid crystal layer and the second polarizer sheet. | ||||||
QQ群二维码
意见反馈
意见反馈