| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 349103000 | With particular non-zero and non-90 angle between opposite polarization axes | 19 |
| 20090086132 | LIQUID CRYSTAL DISPLAY UNIT - A liquid crystal display unit has: a pair of opposing substrates; an electrode pattern formed on each of the substrates on an opposing surface side; a vertical alignment film formed on each of the substrates and covering the electrode pattern; a liquid crystal layer squeezed between the substrates; and a pair of polarizer plates formed on the substrates on an opposite side to the side of said liquid crystal layer, wherein an edge of the electrode pattern includes a zigzag pattern parallel to one of axis directions of the polarizer plates and a direction perpendicular the axis direction. Optical through can be reduced along an edge portion of a pixel of a vertical alignment LCD. | 04-02-2009 |
| 20090096965 | Liquid crystal display and organic EL display - Disclosed is a liquid display device that is capable of suppressing a change in contrast of a liquid crystal display panel, in which a screen is a curved surface with a curvature in one direction. In a liquid crystal display panel having a cylindrical surface, an upper polarizing plate is attached to a color filter substrate. The upper polarizing plate receives tensile stress in a curved direction. Tensile stress adversely affects polarization characteristics of the upper polarizing plate. According to an embodiment of the invention, if the absorption axis A of the upper polarizing plate is adapted to match with the curved direction of the liquid crystal display panel, it is possible to prevent a change in polarization characteristics of the upper polarizing plate. As a result, it is possible to obtain an image with excellent contrast for a long term. | 04-16-2009 |
| 20090128751 | LIQUID CRYSTAL DISPLAY - A liquid crystal display includes a first and a second transparent substrates facing to each other, a liquid crystal layer, a first polarizer, a second polarizer, and a first half wave plate. The liquid crystal layer is interposed between the first and the second transparent substrates. The first polarizer is positioned next to the first transparent substrate and opposite the liquid crystal layer, and the second polarizer is positioned next to the second transparent substrate and opposite the liquid crystal layer. The first half wave plate is provided between the first transparent substrate and the first polarizer to enable the liquid crystal display to have a normally black mode. | 05-21-2009 |
| 20100079709 | LIQUID CRYSTAL DISPLAY - The present invention relates to a liquid crystal display. The liquid crystal display includes a liquid crystal panel having a first and a second side, a first polarizer arranged on the first side of the liquid crystal panel, and a backlight unit arranged on the first side of the liquid crystal panel, the first polarizer being arranged between the liquid crystal panel and the backlight unit, a second polarizer arranged on the second side of the liquid crystal panel, and a first half-wave plate arranged on the second side of the liquid crystal panel, the second polarizer arranged between the liquid crystal panel and the first half-wave plate. A slow axis of the first half-wave plate meets a transmission axis of the second polarizer at a first angle θ | 04-01-2010 |
| 20100231833 | LIQUID CRYSTAL DISPLAY APPARATUS HAVING ALIGNMENT CONTROL FOR BRIGHTNESS AND RESPONSE - A liquid crystal display apparatus including a pair of substrates having electrodes and vertical alignment layers. A liquid crystal having a negative anisotropy of dielectric is inserted between the substrates. Each substrate has linearly arranged alignment control structures for controlling the alignment of the liquid crystal. The alignment control structures are formed in the form of projections or slits. Each alignment control structure is formed of a plurality of constituent units. In addition, means for forming a boundary of alignment of liquid crystal (singular point in director field) to control the liquid crystal located on the alignment control structures. | 09-16-2010 |
| 20100253887 | Liquid crystal display device and polarizing plate with a condensing element - A liquid crystal display device according to the present invention includes a rear light source device, a rear polarizing plate, a liquid crystal cell including liquid crystal molecules that are substantially perpendicularly aligned during black display, and a front polarizing plate, which are provided in the stated order, wherein: an absorption axis of a polarizer of the rear polarizing plate is perpendicular to an absorption axis of a polarizer of the front polarizing plate; and condensed light in which a half-value angle in a direction perpendicular to the absorption axis of the polarizer of the rear polarizing plate is smaller than a half-value angle in a direction parallel to the absorption axis of the polarizer of the rear polarizing plate enters the rear polarizing plate. According to the present invention, a liquid crystal display device having an excellent front contrast ratio, and a polarizing plate with a condensing element for realizing the liquid crystal display device having the excellent front contrast ratio may be provided. | 10-07-2010 |
| 20120002144 | Liquid crystal display device - A liquid crystal display device includes: a vertical alignment liquid crystal layer; first and second substrates facing each other with the liquid crystal layer interposed; first and second electrodes arranged on the first and second substrates to face the liquid crystal layer; and at least one alignment film in contact with the liquid crystal layer. A pixel region includes a first liquid crystal domain in which liquid crystal molecules are tilted in a first direction around the center of a plane, and approximately at the middle of the thickness, of the liquid crystal layer responsive to a voltage applied. The first liquid crystal domain is close to at least a part of an edge of the first electrode. The part includes a first edge portion in which an azimuthal direction, perpendicular to the part and pointing toward the inside of the first electrode, defines an angle greater than 90 degrees to the first direction. The first or second substrate has an opaque member including a first opaque portion for selectively shielding at least a part of the first edge portion from incoming light. | 01-05-2012 |
| 20120013829 | LIQUID CRYSTAL DISPLAY HAVING WIDE VIEWING ANGLE - A tetragonal ring shape aperture is formed in the common electrode on one substrate and a cross shape aperture is formed at the position corresponding to the center of the tetragonal ring shape aperture in the pixel electrode on the other substrate. A liquid crystal layer between two electrodes are divided to four domains where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes. The directors in adjacent domains make a right angle. The tetragonal ring shape aperture is broken at midpoint of each side of the tetragon, and the width of the aperture decreases as goes from the bent point to the edge. Wide viewing angle is obtained by four domains where the directors of the liquid crystal layer indicate different directions, disclination is removed and luminance increases. | 01-19-2012 |
| 20120033160 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display device using pixel electrodes having a fishbone structure as well as using the PSA technology, the occurrence of an azimuthal angle shift in the vicinity of the pixel edge is suppressed. A liquid crystal display device according to the present invention is a liquid crystal display device comprising a plurality of pixels and a pair of polarizing plates located in crossed Nicols and providing display in a normally black mode. Each of the plurality of pixels includes a liquid crystal layer containing liquid crystal molecules having a negative dielectric anisotropy; a pixel electrode and a counter electrode facing each other with the liquid crystal layer interposed therebetween; a pair of vertical alignment films respectively provided between the pixel electrode and the liquid crystal layer and between the counter electrode and the liquid crystal layer; and a pair of alignment sustaining layers respectively provided on surfaces of the pair of vertical alignment films on the liquid crystal layer side and formed of a photopolymerizable material. The pixel electrode includes a cross-shaped trunk portion located so as to overlap polarization axes of the pair of polarizing plates, a plurality of branch portions extending from the trunk portion in a direction having an angle of about 45° with respect thereto, and a plurality of slits formed between the plurality of branch portions. The pixel electrode has an overall shape which is a generally parallelogram shape with four right angles, each of four sides of which has an angle of about 45° with respect to the polarization axes of the pair of polarizing plates. The plurality of branch portions are located generally symmetrically with respect to the trunk portion. | 02-09-2012 |
| 20120069276 | LIQUID CRYSTAL DISPLAY APPARATUS - In a liquid crystal display apparatus in which a liquid crystal layer is twist-aligned when no electric field is applied, Δnd value of a liquid crystal layer in a wavelength of 550 nm is 300 to 400 nm, each of directions of polarizing axes of pair of linear polarizers is substantially parallel or vertical to the alignment direction of liquid crystal molecules in each end face of the liquid crystal layer that is closer to each of linear polarizers, and the angle between polarizing axes of the pair of linear polarizers is 85° or larger and smaller than 90°. In a liquid crystal display apparatus in which a liquid crystal layer is aligned to be substantially vertical when no electric field is applied, the angle between polarizing axes of the pair of linear polarizers is 85° or larger and smaller than 90°. In a liquid crystal display apparatus of a lateral electric field drive system, a uniaxial alignment angle of a liquid crystal layer when no electric field is applied is larger than −45° and −40° or smaller, or +40° or larger and smaller than +45°. | 03-22-2012 |
| 20120086894 | LIQUID CRYSTAL DISPLAY ELEMENT - A liquid crystal display element comprises a first and a second substrates, a vertical alignment liquid crystal layer, and a first and a second polarizers arranged to cross approximately their absorption axes and an alignment direction of liquid crystal molecules when no voltage is applied at almost 45 degrees. At least one of the electrodes comprises a polyline extending to an extending direction as a whole and having no straight line in parallel to the extending direction along an electrode edge, and the polyline is formed along an edge of at least one of the first and the second electrodes where the alignment directions when a voltage is applied and when no voltage is applied are opposite to each other if the polyline is a straight line along the extending direction. | 04-12-2012 |
| 20130010237 | LIQUID CRYSTAL DISPLAY DEVICE - According to one embodiment, a liquid crystal display device includes a first substrate including a first source line and a second source line, a pixel electrode, and a first alignment film, a second substrate including an insulative substrate, a shield electrode, a black matrix, a color filter, an overcoat layer, a common electrode, and a second alignment film, and a liquid crystal layer, wherein a surface resistance of the shield electrode is higher than a surface resistance of the common electrode. | 01-10-2013 |
| 20130033663 | LIQUID CRYSTAL DISPLAY DEVICE - According to one embodiment, a liquid crystal display device includes a first substrate including a first insulative substrate, and a first electrode, a second substrate including a second insulative substrate, and a second electrode, a liquid crystal layer held between the first substrate and the second substrate, a first polarizer including a first polarization axis, and a second polarizer including a second polarization, wherein the first polarization axis is substantially parallel or substantially perpendicular to the direction of extension of the first electrode. | 02-07-2013 |
| 20130321748 | PSVA Liquid Crystal Display Panel, Liquid Crystal Display Device and Liquid Crystal Display Device - The present invention provides a PSVA liquid crystal display panel, a liquid crystal display panel and a liquid crystal display device. The liquid crystal display panel includes upper and lower substrates, disposed oppositely, with liquid crystal sandwiched between upper and lower substrates; liquid crystal molecules in liquid crystal vertically aligned; surfaces of upper and lower substrates having upper and lower polarizers respectively, optical axes of upper and lower polarizers perpendicular to each other; surface of upper polarizer closer to lower polarizer having upper quarter waveplate, surface of lower polarizer closer to upper polarizer having a lower quarter waveplate; wherein slow axis of upper quarter waveplate and slow axis of lower quarter waveplate forming 45° angle with optical axes of upper and lower polarizers respectively, slow axes of upper and lower quarter waveplates perpendicular to each other so as to ensure high transmittance and response speed. | 12-05-2013 |
| 20140043568 | DISPLAY APPARATUS - A display apparatus includes a display panel disposed between a first polarizer and a second polarizer and having at least one first area and at least one second area. A first light-transmission axis direction of the first polarizer is substantially perpendicular to a second light-transmission axis direction of the second polarizer. The first light-transmission axis direction intersects a horizontal axis direction by about 45 degrees. When the display panel is in a narrow viewing angle display mode, the first and second areas have different brightness in a side viewing angle direction but have the same brightness in and around a normal viewing angle direction. When the display panel is in a wide viewing angle display mode, the first and second areas have substantially the same brightness in various viewing angle directions. | 02-13-2014 |
| 20140132898 | DISPLAY PANEL AND DISPLAY DEVICE - The invention discloses a display panel, which comprises a liquid crystal cell, an upper polarizer sheet arranged above the liquid crystal cell, a lower polarizer sheet arranged under the liquid crystal cell and a transflective film arranged under the lower polarizer sheet. The invention further discloses a display device comprising the above display panel. By the invention, not only the transflective display has an improved effect, but also the transflective display has a simple structure and an inexpensive cost in comparison with the existing transflective display mode. | 05-15-2014 |
| 20140300847 | DISPLAY APPARATUS - A display apparatus including a display panel, a first polarizer and a second polarizer is provided. The display panel includes a pixel array substrate, an opposite substrate and a display medium. The pixel array substrate includes a plurality of pixel units. Each pixel unit includes a first electrode and a second electrode. The first electrode and the second electrode are alternately arranged and a lateral electric field is existed between the first electrode and the second electrode. The opposite substrate is disposed opposite to the pixel array substrate. The display medium is disposed between the pixel array substrate and the opposite substrate. The first polarizer is disposed on the pixel array substrate. The second polarizer is disposed on the opposite substrate. An included angle between an optical axis of the first polarizer and an optical axis of the second polarizer is 90°±θ, and θ is 1° to 9°. | 10-09-2014 |
| 20140375935 | ORGANIC EL DISPLAY ELEMENT HAVING OPTICAL STACK - An organic EL display device includes at least a polarizer layer, a λ/2 plate, a λ/4 plate and an organic EL panel in this order, and an in-plane retardation Re2(550) of the λ/4 plate at 550 nm satisfies 115≦Re2(550)≦155, and an in-plane retardation Re1(550) of the λ/2 plate at 550 nm satisfies Re1(550)=2×Re2(550)±50 nm. | 12-25-2014 |
| 20160004121 | MODULE FOR LIQUID CRYSTAL DISPLAY APPARATUS AND LIQUID CRYSTAL DISPLAY APPARATUS COMPRISING THE SAME - A module for a liquid crystal display apparatus may include: a liquid crystal display panel; first and second adhesive films on first and second surfaces of the liquid crystal display panel; first and second polarizing plates on the first and second adhesive films respectively, each polarizing plate including a polarizer and having a tetragonal shape with a long side and a short side. The absorption axes of the first polarizer and the second polarizer form an angle of about 80° to about 100°. A ratio (B/A) of the creep of the first adhesive film (B) to the creep of the second adhesive film (A) is greater than about 1 at a temperature of 25° C. | 01-07-2016 |
