Patent application number | Description | Published |
20090009700 | Liquid Crystal Display Device - A liquid crystal display device includes a first substrate and a second substrate with a liquid crystal material sandwiched therebetween, a pixel having an optically transmissive portion and an optically reflective portion, a phase plate which is formed between the second substrate and the liquid crystal material in the optically transmissive portion of the pixel, and a color filter which is formed between the second substrate and the liquid crystal material in the optically transmissive portion of the pixel and between the phase plate and the liquid crystal material in the optically reflective portion of the pixel. A counter electrode is formed between the color filter and the liquid crystal material, and a pixel electrode is formed between the first substrate and the liquid crystal material. An electric field which is produced by a voltage between the pixel electrode and the counter electrode induces behavior of the liquid crystal material. | 01-08-2009 |
20090015768 | Liquid crystal display device - The present invention enhances a numerical aperture of a liquid crystal display device having color filters. In a liquid crystal display device including a liquid crystal display panel which has a first substrate, a second substrate, and a liquid crystal layer sandwiched between the first substrate and the second substrate, the liquid crystal display panel includes a light blocking film and a plurality of sub pixels arranged in a matrix array, each one of the plurality of sub pixels includes a pixel electrode, a counter electrode and a color filter, an electric field is generated between the pixel electrode and the counter electrode thus driving liquid crystal of the liquid crystal layer. The plurality of sub pixels includes two neighboring sub pixels which are arranged adjacent to each other along the direction of a display line and have the color filters of the same color. The light blocking film is formed so as to cover respective pixel boundaries of the plurality of sub pixels except for the pixel boundary between the two neighboring sub pixels. The respective pixel electrodes of the two neighboring sub pixels are formed independently from each other. | 01-15-2009 |
20090033845 | Liquid Crystal Display Device - A liquid crystal display panel is provided with a light-shielding film, and a plurality of subpixels arranged in a matrix. The subpixels each include a first electrode formed on a first substrate, a second electrode formed to be located upper than the first electrode, and a color filter formed on a second substrate. The second electrode has a plurality of linear portions. The subpixels are disposed adjacently along the direction of display lines, and any two of the adjacent subpixels have the same color of color filter. The light-shielding film is formed on the second substrate not to cover the pixel boundary between the two adjacent subpixels but to cover pixel boundaries of the remaining subpixels. The second electrodes of the two adjacent subpixels are formed separately, and assuming that the two adjacent subpixels are first and second subpixels, at least the second electrode of the first subpixel is disposed also to an area of the second subpixel beyond the pixel boundary between the first and second subpixels. Such a configuration favorably increases an aperture ratio of a liquid crystal display device including a color filter. | 02-05-2009 |
20090040442 | Liquid crystal display device - A liquid crystal display device comprising a liquid crystal display panel that has a first substrate (SUB | 02-12-2009 |
20090046213 | LIQUID CRYSTAL DISPLAY DEVICE - In a liquid crystal display device into which a phase difference film is incorporated on the color filter substrate side, the phase difference film can be formed more easily than the prior art. | 02-19-2009 |
20090103025 | Liquid crystal display device - The present invention realizes an IPS liquid crystal display device which exhibits small directivity of viewing angle and high brightness. Below a pixel electrode having a comb-teeth-shaped electrode and having a laterally-extending trapezoidal profile, a planar common electrode not shown in the drawing is formed by way of an insulation film. When a video signal is applied to the pixel electrode, an electric field is generated between the pixel electrode and the common electrode via slit portions formed in the pixel electrode thus controlling liquid crystal molecules. The pixel electrodes are arranged in a packed state by alternately reversing the direction of the trapezoidal shape in the longitudinal direction. Since a light blocking film is not present between two pixel electrodes arranged adjacent to each other in the longitudinal direction, the liquid crystal display device can acquire high transmissivity. As a result, a liquid crystal display device having high brightness can be realized. | 04-23-2009 |
20090128726 | Liquid crystal display device - An IPS-method liquid crystal display device which exhibits small directivity of a viewing angle and high brightness is realized. A planar common electrode is arranged below a pixel electrode which includes comb-teeth-shaped electrodes and slits. When a video signal is applied to the pixel electrode, an electric field is generated between the pixel electrode and the common electrode by way of slit portions formed in the pixel electrode thus controlling liquid crystal molecules. To reduce the occurrence of a phenomenon that an abnormal domain is generated in an end portion of the slit and the abnormal domain lowers transmissivity of liquid crystal, the structure in which the slits having both ends thereof closed and the slits having one-side end portion thereof opened are alternately arranged next to each other in parallel is adopted. | 05-21-2009 |
20090195732 | Liquid Crystal Display Device - A liquid crystal display device having a liquid crystal display panel, which includes a pair of substrates, liquid crystal sandwiched between the substrates, a plurality of sub pixels, each sub pixel including a transmissive portion and a reflective portion, a light blocking film formed on one of the substrates, color filters formed on the one substrate, a leveling film formed on the light blocking film and the color filters, an orientation film formed on the leveling film, a retardation film formed on the orientation film at portions corresponding to the reflective portions of the respective sub pixels, and a protective film formed on the retardation film. The orientation film extends at least from the reflective portion to the transmissive portion, the protective film covers the retardation film and a region of the orientation film, the region of the orientation film is a region where the retardation film is not formed. | 08-06-2009 |
20090251654 | LIQUID CRYSTAL DISPLAY DEVICE - An object of the present invention is to prevent the domain from being generated in the pixel end portions so that the transmittance can increase in an IPS type liquid crystal display device where the size of the pixels is extremely small. In the liquid crystal display device according to the present invention, the electrodes close to the liquid crystal layer have a comb-like structure having a linking portion only at one pixel end, the end portion of the comb-like structure has a structure for preventing the domain from growing, the width of the slits in the comb-like structure is greater than the width of the electrodes, and the alignment of the liquid crystal layer has such a pretilt angle that the liquid crystal rises from the end portion in the comb-like structure towards the root in the interface close to the electrode. | 10-08-2009 |
20090309821 | Display Device - Each of a plurality of pixels is composed of a first sub-pixel for a first color, a second sub-pixel for a second color, and a third sub-pixel for a third color. The longitudinal direction of the first sub-pixel is the extending direction of video lines, and the longitudinal direction of each of the second sub-pixel and the third sub-pixel is the extending direction of scanning lines. The second sub-pixel and the third sub-pixel are arranged adjacent to each other on one side of the first sub-pixel. The first sub-pixels are continuously formed in two adjacent pixels in the extending direction of the video lines. When three adjacent pixels in the extending direction of the video lines are defined as first to third pixels, the second sub-pixels are continuously formed in the first pixel and the second pixel, and the third sub-pixels are continuously formed in the second pixel and the third pixel. | 12-17-2009 |
20100002162 | Liquid Crystal Display Device - A liquid crystal display device includes pixels A and pixels B, wherein a width BB of the pixel B is smaller than a width AA of the pixel A. A pixel electrode formed in the pixel B is smaller than a pixel electrode formed in the pixel A in area and hence, capacitance formed between the pixel electrode and a counter electrode which is formed below the pixel electrode with an insulation film sandwiched therebetween becomes small. To eliminate this difference in capacitance, a first branch electrode and a second branch electrode are formed on the pixel electrode of the pixel B thus increasing capacitance between the pixel electrode and the counter electrode. Due to such a constitution, it is possible to prevent the deterioration of image quality attributed to imbalance of capacitance. | 01-07-2010 |
20100245734 | Liquid Crystal Display Device - A liquid crystal display device includes a first substrate, a second substrate, a liquid crystal layer, a light-shielding film, a plurality of subpixels on the first substrate, a first electrode for each of the subpixels, a second electrode for each of the subpixels, and a color filter formed on the second substrate for each of the subpixels. The second electrodes each include a plurality of linear portions, wherein the subpixels include first and second subpixels that are adjacent to each other. A signal line forms between the first subpixel and second subpixel, and the color filter is formed across the signal line in the same color, and the second electrodes of the first and second subpixels are formed separately, and the second electrode of the first subpixel is disposed to an area of the second subpixel beyond the signal line. | 09-30-2010 |
20100321283 | LIQUID CRYSTAL DISPLAY DEVICE AND MANUFACTURING METHOD FOR SAME - A liquid crystal display device with a higher aperture ratio is provided. According to one embodiment of the present invention, second color filters are formed so as to overlap with first color filters when adjacent color filters having different colors are formed on the TFT substrate side, so that the angle of the first tapers where said first color filters overlap and the angle of the second tapers where said second color filters overlap are set to 45° or more and 90° or less. | 12-23-2010 |
20110187976 | Liquid crystal display device - An IPS-method liquid crystal display device which exhibits small directivity of a viewing angle and high brightness is realized. A planar common electrode is arranged below a pixel electrode which includes comb-teeth-shaped electrodes and slits. When a video signal is applied to the pixel electrode, an electric field is generated between the pixel electrode and the common electrode by way of slit portions formed in the pixel electrode thus controlling liquid crystal molecules. To reduce the occurrence of a phenomenon that an abnormal domain is generated in an end portion of the slit and the abnormal domain lowers transmissivity of liquid crystal, the structure in which the slits having both ends thereof closed and the slits having one-side end portion thereof opened are alternately arranged next to each other in parallel is adopted. | 08-04-2011 |
20120200813 | Liquid Crystal Display Device - A liquid crystal display device includes a first substrate on which pixels having a thin film transistor are formed in regions surrounded by scanning lines and video signal lines, a second substrate which faces the first substrate and having color filters and light blocking films formed thereon, and a liquid crystal layer which is sandwiched between the first substrate and the second substrate. The thin film transistor has a gate electrode connected to the scanning line, a drain electrode connected to the video signal line and a source electrode connected to a pixel electrode. The pixels include first pixels having a first width and second pixels having a second width smaller than the first width. The pixel electrode of the second pixel has a branch electrode extending from the pixel electrode with at least a portion of the branch electrode overlapping the video signal line or the scanning line. | 08-09-2012 |