Patent application number | Description | Published |
20100253897 | LIQUID CRYSTAL DISPLAY DEVICE - There is provided a liquid crystal display device of high picture quality with high brightness and small display unevenness. | 10-07-2010 |
20100283928 | LIQUID CRYSTAL DISPLAY DEVICE - An active matrix liquid crystal display device includes: a liquid crystal layer; two substrates sandwiching the liquid crystal layer; and electrodes respectively provided in the two substrates, the electrodes applying voltage across the liquid crystal layer. A first electrode ( | 11-11-2010 |
20100283952 | LIQUID CRYSTAL DISPLAY DEVICE - A VA-mode liquid crystal display device which includes a pair of alignment sustaining layers | 11-11-2010 |
20110001691 | LIQUID CRYSTAL DISPLAY DEVICE - A pixel of a liquid crystal display device of the present invention includes a liquid crystal layer | 01-06-2011 |
20110007252 | LIQUID CRYSTAL DISPLAY DEVICE AND DISPLAY DEVICE SUBSTRATE - The present invention provides a liquid crystal display device which allows an improvement in contrast ratio by compensating retardation given in a liquid crystal layer, even if a retardation layer has an inclined portion, and a desired retardation is varied at the inclined portion. The present invention is a vertical alignment liquid crystal display device, including:
| 01-13-2011 |
20110025970 | LIQUID CRYSTAL DISPLAY DEVICE - There is provided a liquid crystal display device of high image quality, which has high brightness and excellent viewing angle characteristics. | 02-03-2011 |
20110102713 | LIQUID CRYSTAL DISPLAY DEVICE - The present invention provides a multi-domain type liquid crystal display device with a vertical alignment liquid crystal layer that can get a display operation done without making the viewer sense any unnaturalness and with the decrease in optical transmittance minimized. In the liquid crystal display device of this invention, the liquid crystal layer of each pixel has liquid crystal regions in which liquid crystal molecules tilt in multiple different directions when a voltage is applied between first and second electrodes. Each pixel has an opaque portion arranged on a boundary between the liquid crystal regions. The opaque portion is provided for at least one of the substrates so that when a voltage is applied between the first and second electrodes, the liquid crystal molecules neighboring the boundary will tilt while turning one of their end portions, which is closer to the substrate with the opaque portion, away from the boundary. The opaque portion includes a first shielding layer and a second shielding layer, which overlaps with the first shielding layer with a predetermined gap left between them. | 05-05-2011 |
20110193769 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device ( | 08-11-2011 |
20110310335 | LIQUID CRYSTAL DISPLAY DEVICE - A high image quality liquid crystal display device having a high viewing angle characteristic is provided. The liquid crystal display device according to the present invention is of a vertical alignment type and includes a plurality of pixels. The liquid crystal display device includes a first polarizing plate having an absorption axis extending in a first direction; a second polarizing plate having an absorption axis extending in a second direction perpendicular to the first direction; a pixel electrode located in each of the plurality of pixels and including a first subpixel electrode and a second subpixel electrode to which different levels of voltage can be applied; a counter electrode facing the pixel electrode; and a liquid crystal layer provided between the pixel electrodes and the counter electrode. The first subpixel electrode includes a plurality of branch electrodes extending in an identical direction, which is a third direction different from a direction inclined by 45° with respect to the first direction or the second direction. | 12-22-2011 |
20120001840 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device providing a high image quality with good viewing angle characteristics and being produced at a high efficiency is provided. A liquid crystal display device according to the present invention includes a TFT substrate including a plurality of pixel electrodes in correspondence with a plurality of pixels, respectively; a counter substrate including a counter electrode facing the plurality of pixel electrodes; and a liquid crystal layer located between the TFT substrate and the counter substrate. The plurality of pixel electrodes each include a first trunk portion, a plurality of first branch portions extending from the first trunk portion in a first direction, and a plurality of second branch portions extending from the first trunk portion in a direction opposite to the first direction. The counter electrode includes, in each of the plurality of pixels, a plurality of branch portions extending in a second direction, which is perpendicular to the first direction in a substrate plane. | 01-05-2012 |
Patent application number | Description | Published |
20100134738 | Liquid crystal display unit - A liquid crystal display device according to the present invention includes: a vertical alignment liquid crystal layer; first and second electrodes arranged on one surface of first and second substrates to face the liquid crystal layer; and first and second alignment films arranged on the first and second electrodes, respectively, in contact with the liquid crystal layer. The first alignment film has been subjected to an optical alignment treatment by obliquely irradiating a first alignment film material, having a photosensitive wavelength within the wavelength range of 250 nm to 380 nm, with light including the photosensitive wavelength. The device further includes: a metal layer arranged between the first alignment film and the first substrate; and a first resin layer arranged between the metal layer and the first alignment film. The first resin layer has an optical property that attenuates the intensity of light, which has been incident on the first resin layer and then reflected from the metal layer, to 60% or less at the photosensitive wavelength. | 06-03-2010 |
20100203786 | PLASTIC SUBSTRATE AND LIQUID CRYSTAL DISPLAY DEVICE HAVING SAME - A plastic substrate according to the present invention is used in optical instruments. The plastic substrate includes a composite substrate | 08-12-2010 |
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 |
Patent application number | Description | Published |
20090267880 | LIQUID CRYSTAL DISPLAY DEVICE - A pixel has a first liquid crystal domain. In the first liquid crystal domain, first and second pretilt directions of liquid crystal molecules, defined by first and second alignment films, respectively, intersect with each other at substantially right angles. Also, in the first liquid crystal domain, when a signal voltage is applied to the liquid crystal layer to display the highest gray scale, liquid crystal molecules, located around the center of a plane of the liquid crystal layer and around the middle of the thickness of the liquid crystal layer, are tilted in a first direction that substantially equally divides the first and second pretilt directions into two. A driver applies a signal voltage to the liquid crystal layer of the pixel every vertical scanning period. At least while display gray scales are changing from the lowest gray scale into the highest one, the driver applies a voltage that is at least 0.96 times as high as the threshold voltage Vth of the liquid crystal layer in a vertical scanning period just before the signal voltage is applied to display the highest gray scale. | 10-29-2009 |
20090284703 | 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. | 11-19-2009 |
20130114029 | LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal display device includes a vertical alignment liquid crystal layer, first and second substrates, first and second electrodes, and a pixel region which includes first, second, third and fourth liquid crystal domains in which liquid crystal molecules are tilted in first, second, third and fourth directions, respectively. The first liquid crystal domain is located close to at least a part of an edge of the first electrode, the second liquid crystal domain is located close to at least a part of another edge of the first electrode, the third liquid crystal domain is located close to at least a part of still another edge of the first electrode, and the fourth liquid crystal domain is located close to at least a part of yet another edge of the first electrode. | 05-09-2013 |