Abstract: The present invention provides a liquid crystal display device which enables costs to be reduced, excels in productivity, and enables a high contrast ratio over a wide viewing angle range to be realized.

Abstract: 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.

Abstract: The present invention relates to a display device having a touch panel, and more particularly, to a touch panel display device which can improve visibility. The display device of the present invention includes: a display panel; a first film layer that is disposed on the display panel, and includes a first material, a first transparent layer having a first pattern disposed on the first material, and an index matching layer disposed between the first material and the first transparent layer; a second film layer that is disposed on the first film layer, and includes a second material, a second transparent layer having a second pattern disposed on the second material, and an index matching layer disposed between the second material and the second transparent layer; and a touch window disposed on the second film layer.

Abstract: An LCD device operably switchable between 2D and 3D display modes includes an active retardation panel having a plurality of retardation pixels arranged in at least M*N retardation pixel matrix with a first liquid crystal (LC) layer, and an LCD panel positioned having a plurality of display pixels arranged in at least M*N display pixel matrix with a second LC layer. Each retardation pixel has a first retardation A(i, j), and each display pixel has a second retardation B(i, j). The active retardation panel and LCD panel are arranged such that the retardation pixel matrix is positioned corresponding to the display pixel matrix, and an image displayed from each display pixel and passed through corresponding retardation pixel is simultaneously viewable by left and right eyes of a viewer and satisfies with: L(i,j)=f[A(i+1,j)+B(i,j)], and R(i,j)=f[A(i,j)+B(i,j)]. L(i, j) and R(i, j) are respectively left-eye and right-eye viewed gray levels of the image.

Abstract: Disclosed is a liquid-crystal display device wherein the total of Rthrear(?) and Rthfront(?) is within a range capable of compensating ?nd(?) in the black state; and the total scattering intensity of the front-side substrate satisfies the following formula (0); and the front-member scattering intensity, and the total scattering intensity of the rear-side substrate, and Rthfront(?) and Rthrear(?) satisfy following relationship (1) or (2): (0) The front-member scattering intensity? 1/38000, (1) The rear-member scattering intensity>The front-member scattering intensity, and Rthfront(?)>Rthrear(?), (2) The rear-member scattering intensity<The front-member scattering intensity, and Rthfront(?)<Rthrear(?).

Abstract: The present invention provides a circularly polarizing VA mode liquid crystal display device having an excellent gray scale viewing angle from an intermediate gray scale to a high gray scale at an azimuth angle of 45°.

Abstract: A stereoscopic display device includes: a parallax barrier in which light transmission parts that transmit light and light shielding parts that block light are formed alternately, and a display panel that displays a stereoscopic image. A plurality of pixels for displaying the stereoscopic image are formed on the display panel. Each pixel includes a plurality of color forming subpixels that contribute to the color formation of the stereoscopic image, and a contrasting subpixel that contributes to the contrast of the stereoscopic image. In each pixel, the contrasting subpixel is positioned at both ends of the pixel in a direction in which the light transmission parts and the light shielding parts are arranged alternately. In each pixel that overlaps the light shielding part when the display panel is viewed from front, the contrasting subpixel is positioned at both ends of the light shielding part.

Abstract: A polarization conversion mechanism for a touch screen display includes a crystal layer and a polarizing layer. The crystal layer includes a birefringent crystal for changing phase delay effect in accordance with the orientation of the crystal axis thereof. The polarizing layer includes at least one linear polarizer such that an incident light after hitting a display module of the display device reflects and emits out through the linear polarizer and the crystal layer sequentially as reflection light in form of circularly polarized light or elliptically polarized light. The assembly of the crystal layer and the layer are installed to the display device and/or touch screen display in such a manner that the assembly is located on the display module thereof.

Abstract: A wavelength plate includes: a first quartz plate unit including a plurality of quartz plates which have main surfaces disposed in the same plane and are jointed with each other; and a second quartz plate unit including a plurality of quartz plates which have main surfaces disposed on a main surface of the first quartz plate unit and are jointed with each other in a position different from a joint position of the first quartz plate unit.

Abstract: The present invention relates to liquid crystal display technology, and provides an optical compensation film for a liquid crystal display, including a first polarizer and a second polarizer disposed on both sides of the liquid crystal panel respectively, and an A-plate and a C-plate arranged between the liquid crystal panel and the first polarizer or between the liquid crystal panel and the second polarizer, wherein the in-plane compensation value for optical path difference of the A-plate RoA-plate lies in the range of [92, 184]nm, the compensation value for optical path difference in the thickness direction of the A-plate RthA-plate lies in the range of [46, 92]nm. The dark-state light leakage distribution and the contrast ratio of the display are improved through the optical compensation film according to the invention. The invention further provides a liquid crystal display including an optical compensation film.

Abstract: Disclosed is a negative C-type retardation compensator for a liquid crystal display. The negative C-type retardation compensator for the liquid crystal display includes polyarlate having a thio group or a sulfur oxide group in a polymer main chain thereof. Accordingly, the retardation compensator has an absolute value of negative retardation that is larger in a thickness direction that a retardation compensator which includes polyarylate having no thio group or sulfur oxide group in a polymer main chain thereof even though the retardation compensator having the thio group or sulfur oxide group and the retardation compensator having no thio group or sulfur oxide group are the same as each other in thickness. Thereby, the negative C-type retardation compensator for liquid crystal displays is capable of being desirably applied to the liquid crystal displays.

Abstract: A 3D image display apparatus featuring a new polarization system is introduced which minimizes crosstalk between stereoimages. The polarization system includes a shutter panel that shifts the phase of an incident light, a polarizing film disposed between the shutter panel and an observer, a first retardation film disposed between the shutter panel and the polarizing film, a second retardation film disposed between the polarizing film and the first retardation film to correspond to the left eye of the observer, and a third retardation film disposed between the polarizing film and the first retardation film to correspond to the right eye of the observer.

Abstract: 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.

Abstract: A liquid crystal display (LCD) device includes a birefringent layer that satisfies the relationship nx>ny?nz and may be considered a first-class birefringent layer, a birefringent layer that satisfies the relationship nx<ny?nz may be considered a second-class birefringent layer, and a birefringent layer that satisfies the relationship nx?ny?nz may be considered a third-class birefringent layer. The LCD may include a first polarizer, a first first-class birefringent layer whose in-plane phase difference is adjusted to a quarter wave, an LC cell, a second first-class birefringent layer whose Nz factor is substantially the same as the first first-class birefringent layer and whose in-plane phase difference is adjusted to a quarter wave, a second-class birefringent layer, and a second polarizer which may be stacked in this order.

Abstract: A transparent display device includes a cholesteric liquid crystal display (LCD) panel to display an image, a first polarized sheet arranged on one side of the cholesteric LCD panel, and a first ¼ phase delay sheet arranged between the first polarized sheet and the display panel.

Abstract: The present invention provides an optical compensation film group and a method for reducing light leakage of a vertical alignment LCD using the same. For the vertical alignment LCD at a wavelength of 550 nm, an LC?nd in the range of [305.8 nm, 324.3 nm], and a pretilt angle in the range of [85°, 90°), a compensation value Ro of an in-plane optical path difference of the biaxial compensation film is in the range of 48 nm?Ro?84 nm, and a compensation value Rth of an out-of-plane optical path difference of the biaxial compensation film is in the range of 160 nm?Rth?280 nm, and a TAC compensation film having a compensation value Rth is in the range of Y1?Rth?Y2. The present invention can effectively improve the serious light leakage caused by the conventional compensation structure with a single biaxial compensation film, the contrast and sharpness at the large viewing angles, and the costs.

Abstract: There is provided an electrically controllable birefringence liquid crystal display (ECB-LCD) device, including: a liquid crystal panel including a first substrate, a second substrate, and a liquid crystal cell interposed between the first substrate and the second substrate and including a liquid crystal having positive dielectric anisotropy, the liquid crystal cell having a cell gap of 1 to 5 ?m and operating in an ECB mode; a first polarizer disposed on an upper portion of the first substrate and having a first absorption axis; a second polarizer disposed on a lower portion of the second substrate and having a second absorption axis; a first liquid crystal film interposed between the first substrate and the first polarizer; and a second liquid crystal film interposed between the second substrate and the second polarizer; wherein the first liquid crystal film includes a first base substrate; and a first liquid crystal layer formed on a surface of the first base substrate and including a nematic liquid crysta

Abstract: Provided are diffuser, method of manufacturing same, and liquid crystal display device employing the diffuser. Liquid crystal display device includes: backlight unit; liquid crystal panel on which image is formed by using light emitted by backlight unit, and comprising: color filter comprising plurality of pixels each of which comprises plurality of subpixels that are alternately arranged and transmit light in different wavelength bands; and liquid crystal layer whose transmittance is adjusted under electrical control; and diffuser disposed on a top surface or a bottom surface of the liquid crystal panel and comprising diffusing areas and transparent areas which alternate with each other at intervals corresponding to the width of the subpixels, wherein the liquid crystal layer comprises liquid crystal areas corresponding to the diffusing areas and liquid crystal areas corresponding to the transparent areas and the transmittances of the liquid crystal areas are adjusted according to the subpixels.

Abstract: Disclosed is a liquid crystal display device that includes: a blue phase mode liquid crystal layer between the first and second substrates, and has an optical anisotropy when an electric field is applied and not applied; polarizing plates on outer surfaces of first and second substrates, respectively; and one of a first optical compensation film including a +C plate, and a second optical compensation film including a biaxial phase retardation layer, between the polarizing plate and the liquid crystal panel.

Abstract: Provided is an optical film laminate with a thinner thickness having an optical compensation function. According to the present invention is provided an optical film laminate comprising (i) a positive C plate comprising a liquid crystal material having a photosensitive group and (ii) a positive A plate, an optically biaxial plate, or an O plate, these plate comprising a liquid crystal material having a photosensitive group; wherein the both plates are directly bonded with each other to be firmly laminated without adhesive.

Abstract: An O plate is included which includes a phase difference compensating layer which is an assembly of columns obtained by oblique deposition of an anisotropic refractive index medium with respect to a substrate and has negative biaxial refractive index anisotropy. In the O plate, a front surface phase difference value of the O plate in the normal direction is 5-15 nm, and a ratio of Re(?30)/Re(30) is 2.5-5.5.

Abstract: An IPS or FFS-mode liquid-crystal display device includes an optical compensatory film having a first retardation region and a second retardation region adjacent to the first retardation region, wherein a slow axis of the first retardation region is parallel to a slow axis of the second retardation region, retardation in-plane at a wavelength of 550 nm, Re(550) of the second retardation region is equal to or less than 20 nm, and retardation along the thickness-direction at a wavelength of 550 nm, Rth(550) of the second retardation region is from 20 nm to 120 nm, the first retardation region includes a retardation layer containing a vertically-aligned discotic liquid-crystal compound, and Re thereof at a wavelength of 450 nm, 550 nm and 650 nm, Re(450), Re(550) and Re(650) satisfy Re(450)/Re(550) of from 1 to 1.13 and Re(650)/Re(550) of from 0.94 to 1.

Abstract: A compensation system for liquid crystal panels and a liquid crystal display are disclosed. The compensation system includes a first biaxial compensation film and a second biaxial compensation film respectively arranged on two sides of the liquid crystal panel. When the wavelength of incident lights is 550 nm, an in-plain retardation value of the first biaxial compensation film is Ro1, a thickness retardation value of the first biaxial compensation film is Rth1, an in-plain retardation value of the second biaxial compensation film is Ro2, and a thickness retardation value of the second biaxial compensation film is Rth2. Wherein 35 nmRo187.5 nm; 80 nmRth1200 nm; 28 nmRo289.6 nm; Y1Rth2Y2; Y1=0.005389×Rth12?2.367048×Rth1+323.45; Y2=?0.003571×Rth12+0.085714×Rth1+226.74. By configuring the retardation values of the double-layers biaxial compensation films, the dark-state light leakage of the liquid crystal panels may be reduced.

Abstract: Disclosed is a patterned retarder film which comprises a substrate, a patterned configuration layer and a liquid crystal layer. The patterned configuration layer includes a plurality of first regions and a plurality of second regions A liquid crystal layer is disposed on the patterned configuration layer, wherein liquid crystal molecules above the first regions is arranged irregularly because of the protrusions, the liquid crystal molecules above the second regions are aligned with the aligning micro-structures. The liquid crystal layer in above the first regions provides a first phase retardation, the liquid crystal layer above the second regions provides a second phase retardation, and the difference between the first phase retardation and the second phase retardation is 180°. The method for manufacturing the same is disclosed.

Abstract: There is provided a display unit capable of reducing deterioration in the 3D characteristics. A phase difference device is bonded to a surface on a light outgoing side of a liquid crystal display panel. In the phase difference device, two kinds of phase difference regions with slow-axis directions different from each other are arranged in correspondence with each pixel. Each of the phase difference regions is arranged in contact with the phase difference region of a different kind, and a side section, of each of the phase difference region, that is in contact with the phase difference region of the different kind has waviness with an amplitude a that satisfies following expressions: 0<a<amax(?) amax(?)=?0.7/(??1.2)+0.35 ?=arctan(P/(4d)) P: a pixel pitch d: a distance between the pixel and the phase difference device.

Abstract: The present invention provides a compensation system for liquid crystal panel and liquid crystal display device. The compensation system includes first biaxial compensation film and second biaxial compensation film, disposed on two sides of liquid crystal panel respectively, first biaxial compensation film having planar compensation value Ro1 for incident light of 550 nm wavelength and compensation value Rth1 along thickness direction, second biaxial compensation film having planar compensation value Ro2 for incident light of 550 nm wavelength and compensation value Rth2 along thickness direction; wherein 15 nm?Ro1?94 nm; 35 nm?Rth1?214 nm; 35 nm?Rth1?214 nm; 14 nm?Ro2?101 nm; Y1?Rth2?Y2; Y1=0.004302×Rth12?1.96894×Rth1+259.7; Y2=?0.00234308×Rth12?0.32227×Rth1+245. As such, the present invention effectively reduces dark state light leakage of liquid crystal panel by disposing biaxial compensation films of appropriate compensation values.

Abstract: A liquid crystal display comprises two parallel spaced substrates and a liquid crystal layer with negative dielectric anisotropy interposed between the substrates. The ratio d/p, the cell gap d between the substrates to the pitch p of the liquid crystal layer, is equal to or less than 0.3, and the retardation value ?n*d may be in the range of 0.25-0.4. In absence of electric field, the liquid crystal molecules are arranged vertically to the substrates, and when the sufficient electric field is applied, the liquid crystal molecules are parallel to the substrates and twisted by 90° from one substrate to the other.

Abstract: The present invention provides a liquid crystal display device exhibiting an excellent gray scale inversion characteristic in a state where a color close to black is displayed. The present invention is a liquid crystal display device including a first polarizer, a second polarizer disposed to face the first polarizer, a liquid crystal display panel provided between the first polarizer and the second polarizer, and a first phase plate and a second phase plate provided between the first or second polarizer and the liquid crystal display panel.

Abstract: A liquid crystal panel of the present invention includes: a liquid crystal cell; a first polarizing plate placed on one side of the liquid crystal cell; a second polarizing plate and a third polarizing plate placed on another side of the liquid crystal cell in the stated order from a side of the liquid crystal cell; a first retardation plate placed between the liquid crystal cell and the first polarizing plate; and a second retardation plate placed between the liquid crystal cell and the second polarizing plate, in which: refractive index ellipsoids of the first retardation plate and the second retardation plate exhibit a relationship of nx>ny>nz; and a transmittance (T2) of the second polarizing plate is larger than a transmittance (T1) of the first polarizing plate, and a transmittance (T3) of the third polarizing plate is equal to or larger than the transmittance (T1) of the first polarizing plate.

Abstract: A liquid crystal display device displaying a three-dimensional image using a left-eye image and a right-eye image includes a liquid crystal panel including first and second substrates that are spaced apart from each other; a patterned retarder disposed over the liquid crystal panel; and an optical member disposed under the liquid crystal panel, wherein the optical member includes at least one inclined plane corresponding to each pixel region of the liquid crystal panel.

Abstract: Optical compensation films and a method for reducing dark-state light leakage of vertical alignment liquid crystal displays are disclosed. The light path difference (LC?ND) is in a range of 324.3-342.8 nm, and the pretilt angle is in a range of 85 to 90 degrees when measured at a wavelength of 550 nm. Wherein an in-plain retardation value Ro of the biaxial compensation film is in the range of 48-84 nm, an out-of-plain retardation value Rth of the biaxial compensation film is in the range of 160-280 nm, and a retardation value Rth of the TAC compensation film is within a range between Y1 and Y2. The compensation structure with single layer of biaxial compensation film not only can reduce the dark-state light leakage, but also can increase the contrastness and the resolution in the wide viewing angle.

Abstract: In a liquid crystal display device having a plurality of retardation films for alleviating a deterioration in display quality depending on a viewing angle direction, and a driving liquid crystal layer selected from the group consisting of a driving liquid crystal layer typified by a VA mode wherein a liquid crystal molecule in a driving liquid crystal medium is aligned perpendicular to a substrate when no electric field is applied, a driving liquid crystal layer typified by an IPS mode wherein a liquid crystal molecule in a driving liquid crystal medium is aligned parallel to the substrate when no electric field is applied, and a driving liquid crystal layer that shows optical isotropy when no voltage is applied, a retardation film of a positive A-plate formed of a liquid crystalline polyimide having a photoreactive group is used as at least one layer of the plurality of retardation films.

Abstract: An optical compensation film according to an embodiment of the present invention includes: non-liquid crystal polymers arranged in a tilt alignment, wherein the optical compensation film satisfies the following expressions (1) and (2): 3 [nm]?(nx?ny)×d;??(1) and 5°<?,??(2) where, when an X-axis and a Y-axis, which are plane direction axes of a three-dimensional coordinate system, are perpendicular to each other and an axis vertical to the X-axis and the Y-axis in a thickness direction is defined as a Z-axis, nx and ny indicate a maximum refractive index and a minimum refractive index in an XY-plane of the optical compensation film, respectively, d indicates a film thickness [nm], and ? indicates an angle formed between a direction for providing the minimum refractive index ny and a direction for providing a maximum refractive index nb in a YZ-plane of the optical compensation film.

Abstract: A twisted nematic liquid crystal display device includes a first substrate, a plurality of gate lines and a plurality of data lines formed on the first substrate, a plurality of pixels connected to the gate lines and the data lines and each pixel having a first subpixel and a second subpixel, a first subpixel electrode formed in the first subpixel, and a second subpixel electrode formed in the second subpixel. The voltage of the first subpixel electrode is greater than the voltage of the second subpixel electrode, and a ratio of the area of the second subpixel electrode to the area of the first subpixel electrode is in the range of 0.66 to 1.5.

Abstract: A compensation system for liquid crystal panels and a liquid crystal display are disclosed. The compensation system includes a first biaxial compensation film and a second biaxial compensation film respectively arranged on two sides of the liquid crystal panel. When the wavelength of incident lights is 550 nm, an in-plain retardation value of the first biaxial compensation film is Ro1, a thickness retardation value of the first biaxial compensation film is Rth1, an in-plain retardation value of the second biaxial compensation film is Ro2, and a thickness retardation value of the second biaxial compensation film is Rth2. Wherein 35 nmRo187.5 nm; 80 nmRth1200 nm; 28 nmRo289.6 nm; Y1Rth2Y2; Y1=0.005389×Rth12?2,367048×Rth1+323. 45; Y2=?0.003571×Rth12+0.085714×Rth1+226.74. By configuring the retardation values of the double-layers biaxial compensation films, the dark-state light leakage of the liquid crystal panels may be reduced.

Abstract: A liquid crystal display device comprises a liquid crystal panel including sub-pixels and a back light for irradiating light to the back surface of liquid crystal panel. A transmission sub-pixel can be switched into an image display state which can allow irradiated light to exit, and a black display state which does not allow irradiated light to exit. A mirror sub-pixel can be switched between a mirror state which can allow reflected light to exit and a non-mirror state which does not allow reflected light to exit, independently of the transmission sub-pixel. A control unit places each transmission sub-pixel into the image display state or black display state, and places each mirror sub-pixel into the mirror state or non-mirror state.

Abstract: A graded index birefringent component is described and shown with at least one liquid crystal layer having a plurality of lens segments, wherein the orientation of the liquid crystal molecules varies across each lens segment of the liquid crystal layer.

Abstract: The present invention relates to compensation films of a vertically-aligned liquid crystal display. Upper and lower compensation films asymmetrically differ in refractive index from each other.

Abstract: Provided is an image display device including an image display cell and a polarizing plate placed on a viewer side of the image display cell. The first polarizing plate includes a polarizer and a first protective film. The first protective film is placed on a viewer-side principal surface of the polarizer and satisfies following relations: (i) 0 nm?Re1?3000 nm; (ii) Nz1?7; and (iii) Rth1>2500 nm. Re1, Rth1 and Nz1 are defined by following equations: Re1=(nx1?ny1)d1; Rth1=(nx1?nz1)d1; and Nz1=Rth1/Re1, wherein d1 represents a thickness of the first protective film, nx1 represents a refractive index in a direction of an in-plane slow axis of the protective film, ny1 represents a refractive index in a direction of an in-plane fast axis of the protective film, and nz1 represents a refractive index in a direction of the thickness of the protective film.

Abstract: Disclosed is a liquid crystal display device, wherein u?on axis and v?on axis, u?max and v?max, and u?min and v?min satisfy following expressions (1), (2) and (3): u ave ? = ( u max ? - u min ? 2 ) , v ave ? = ( v max ? - v min ? 2 ) ( 1 ) ? ? ? u ? ? v ave - on ? ? axis ? = ( u ave ? - u on ? ? axis ? ) 2 + ( v ave ? - v on ? ? axis ? ) 2 ? 0.04 ( 2 ) 0.35 ? v on ? ? axis ? ? 0.55 ( 3 ) wherein u?on axis and v?on axis are hues in a black state observed in a front direction; u?max and v?max are maximum values of u? and v? in a black state among values observed in directions with an azimuth angle ranging from 0° to 360° and a polar angle of 60°; and u?min and v?min are minimum values of u? and v? in a black state among values observed in directions with an azimuth angle ranging from 0° to 360° and a polar angle of 60°.

Abstract: An object of the invention is to provide a display device having a high contrast ratio. Another object of the invention is to manufacture such a high-performance display device at low cost. In a display device having a display element between a pair of light-transmissive substrates, polarizer-including layers, which have different wavelength distributions of extinction coefficients, are stacked so that absorption axes are in a parallel nicol state, over each light-transmissive substrate. Absorption axes of one of a pair of stacks of polarizers and the other together which interpose the display element are deviated from a cross nicol state. A retardation plate may be provided between the stack of polarizing plates and the substrate.

Abstract: Described herein is an LCD device in which retardation may be removed from a glass substrate when stress is applied to a display screen, thereby minimizing light leakage from the display screen. In the LCD device, a film having a negative photo-elastic constant (NPEC) is arranged to adjoin glass substrates so as to remove photo-elasticity. Specifically, in the LCD device, the NPEC films having negative photo-elasticity are respectively arranged at upper and lower sides of a liquid crystal cell, wherein the liquid crystal cell includes opposing glass substrates with a liquid crystal layer disposed therebetween.

Abstract: A cellulose acylate film, containing an acyl-modified compound of a reduction product of a ketone compound-formaldehyde polymer, a polarizing plate containing the film as transparent protective film, and a liquid crystal display device having the polarizing plate.

Abstract: According to one embodiment, a liquid crystal shutter component includes a first polarizer, a second polarizer, a liquid crystal layer, a first retardation layer, a second retardation layer, a third retardation layer and a fourth retardation layer. A liquid crystal orientation of the liquid crystal layer transitions between a plurality of bend orientation states. The retardation in the direction along the plane of the second retardation layer and the fourth retardation layer is 20 nm or more and 120 nm or less. The retardation along the first direction of the second retardation layer and the fourth retardation layer is 40 nm or more and 140 nm or less.

Abstract: Disclosed is a transparent liquid crystal display device provided with a compensation film of a liquid crystal panel to change the polarizing state of light in an image mode thereby enhancing a viewing angle characteristic, and the transparent liquid crystal display device may include a liquid crystal panel; a light source disposed at one side of a lower portion of the liquid crystal panel to emit light; a first polarizing plate for polarizing the light emitted from the light source; a light guide plate disposed at a lower portion of the liquid crystal panel to totally reflect the light polarized to an axis by the first polarizing plate to a lateral surface thereof and supply to the liquid crystal panel, and transmit natural light entered from a lower direction therethrough; a second polarizing plate disposed at an upper portion of the liquid crystal panel to control the amount of polarized light transmitting the liquid crystal panel; and a first positive A-film disposed at a lower portion of the liquid cryst

Abstract: The present invention provides a display panel and a display apparatus using the same. The display panel comprises a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer, a half (½) wave plate and a quarter (¼) wave plate. The liquid crystal layer is formed between the first substrate and the second substrate. The first polarizer is disposed at an outer side of the first substrate. The second polarizer is disposed at an outer side of the second substrate. The half wave plate is disposed on the first polarizer. The quarter wave plate is disposed on the half wave plate. The invention can improve a chromatic dispersion problem of a 3D display.

Abstract: Disclosed herein is an organic light-emitting diode three-dimensional image display device which comprises a first substrate, a cathode formed on the first substrate, an electron injection layer formed on the cathode, an electron transfer layer formed on the electron injection layer, an emission layer formed on the electron transfer layer, a hole transfer layer formed on the emission layer, a hole injection layer formed on the hole transfer layer, an anode formed on the hole injection layer, a wire grid polarizer formed on the anode and composed of a metal thin film pattern formed at a first angle and a method thin film pattern formed at a second angle perpendicular to the first angle, which are alternately arranged, and a second substrate arranged on the wire grid polarizer.

Abstract: An optical compensation film includes an optical film and a retardation film. The optical film provides a plate retardation in the direction of thickness (Rth), while the retardation film is disposed on the optical film. The retardation film includes first retarders and second retarders, wherein the first retarders are disposed on at least partial areas of the optical film and provide a first planar retardation (Ro1); the second retarders are disposed on partial areas of the optical film but outside the first retarders and provide a second planar retardation (Ro2) and the first planar retardation (Ro1) is different from the second planar retardation (Ro2). The above-mentioned optical compensation film is capable of compensating the displays for different display areas in a liquid crystal display panel. In addition, the present invention also provides a fabricating method of optical compensation film.

Abstract: A variable optical attenuator includes a collimating unit that collimates an incident light beam, a polarization splitting member that separates the collimated light beam into a first polarized light beam having a first polarization and a second polarized light beam having a second polarization, a birefringence control unit through which the first and second polarized light beams pass, the birefringence control unit including a liquid crystal cell having a birefringence is controlled by a voltage or current, wherein the birefringence of the liquid crystal cell is substantially zero when no voltage or current is applied thereto, and a reflection member that reflects the first and second polarized light beams output from the birefringence control unit. The variable optical attenuator has high stability, high precision, and low volume.

Abstract: Disclosed is a liquid crystal display device having a wide viewing angle in which compensation films are provided between a liquid crystal display panel and each polarizer so as to change polarized states of input and output light of the liquid crystal display panel via the polarizers, thereby preventing light leakage in a diagonal direction of the liquid crystal display device in a normally black mode.