摘要:
A liquid crystal display uses a pixel division method by which the size of a defect can be reduced much more than conventionally possible, and a defect correcting method for the liquid crystal display. The liquid crystal display is provided with an active matrix array substrate including a plurality of gate lines and a plurality of source lines arranged on a transparent substrate to intersect with each other, and a plurality of pixel electrodes arranged in a matrix, each pixel electrode including an assembly of a plurality of sub-pixel electrodes, separate TFTs respectively connected to the sub-pixel electrodes in the vicinity of an intersection portion of the gate line and the source line, the TFTs being driven by the common gate line and the common source line, and at least one opening portion being formed in a lower-layer side line placed in a lower layer at the intersection portion.
摘要:
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.
摘要:
Each pixel region includes first, second, third and fourth liquid crystal domains that come to have first, second, third and fourth predetermined tilt directions, respectively, in response to a voltage applied. The first, second, third and fourth directions are defined such that an angle formed between any two of the four directions is approximately equal to an integral multiple of 90 degrees. The first, second, third and fourth liquid crystal domains are arranged in two columns and two rows so as to define a matrix pattern and to be adjacent to each other. An extended portion of a storage capacitor line defines at least a part of a central opaque portion that selectively shields at least a part of a boundary area, where each of the first, second, third and fourth liquid crystal domains contacts with another one of the liquid crystal domains, from incoming light. A contact hole has been cut through an insulating layer, where there is a contact portion between a drain extension line and a first electrode, and is located in a part of the central opaque portion that is closer to the liquid crystal layer.
摘要:
A liquid crystal display device (100) according to the present invention has a plurality of pixels that are arranged in columns and rows to form a matrix pattern and one color display pixel (P) is comprised of four or any other larger even number of pixels. The liquid crystal display device (100) of the present invention includes a plurality of source bus lines (13) which run in a column direction. The even number of pixels that form one color display pixel (P) include larger pixels with a relatively large area and smaller pixels with a relatively small area. Each set of pixels to be supplied with a signal voltage from an associated one of the plurality of source bus lines (13) has substantially the same total area as any other set of pixels. According to the present invention, in a liquid crystal display device in which a plurality of pixels that forms one color display pixel includes the larger and smaller pixels, generation of display unevenness that runs in the column direction can be minimized.
摘要:
An active matrix substrate of the present invention is arranged so that each pixel area has a transistor and a capacity electrode which is able to function as an electrode of a capacity. The active matrix substrate includes a conductor which is provided in a layer below the capacity electrode and is able to function as the other electrode of the capacity. The gate electrode of each transistor and a gate insulating film covering the conductor have a thin section with reduced thickness, in an on-conductor area overlapping the conductor. At least a part of the thin section overlaps the capacity electrode. In this way, the active matrix substrate which can reduce inconsistency in capacitance values of capacities (e.g. a storage capacitor, a capacity for controlling an electric potential of a pixel electrode, and a capacity which can function as both of them) provided in the substrate.
摘要:
In one embodiment of the present invention, a liquid crystal panel driving apparatus is disclosed which sequentially receives pieces of video data for one data signal line, (i) prepares a data string by sorting, in order of outputting, a plurality of pieces of video data inputted in a predetermined period while adding a piece of dummy data to a predetermined position, (ii) assigns one horizontal scanning period to an output of a piece of video data while assigning a dummy scanning period to an output of a piece of dummy data, and (iii) sets one horizontal scanning period shorter than an interval of inputting of pieces of video data. This makes it possible to suppress an increase in vertical display period even though a piece of dummy data is added to inputted video data while a dummy scanning period is assigned thereto.
摘要:
Each pixel includes two pixel electrodes connected to each other via a capacitor, and in respect to a pixel (101) that belongs to the column of pixels and to the row of pixels, a transistor (12a) connected to one of the two scanning signal lines (16a, 16b) is electrically connected to one of two pixel electrodes (17a, 17b) included in the pixel (101), a transistor (12b) connected to the other one of the two scanning signal lines is electrically connected to the other one of the two pixel electrodes, and each of these transistors (12a, 12b) is electrically connected to an identical data signal line (15x) that is one of the two data signal lines (15x, 15y).
摘要:
When each of R, G, and B pixels continuously display identical gray scales (1023 gray scale) in a liquid crystal display device in which the thicknesses of the liquid crystal layers are of R pixel>G pixel>B pixel, the R pixel is alternately supplied with a positive signal potential (SHR1023) and a negative signal potential (SLR1023), the G pixel is alternately supplied with a positive signal potential (SHG1023) and a negative signal potential (SLG1023), and the B pixel is alternately supplied with a positive signal potential (SHB1023) and a negative signal potential (SLB1023). A first middle value (SMR1023) that between SHR1023 and SLR1023 is set higher than a second middle value (SMG1023) that is between SHG1023 and SLG1023, and second middle value (SMG1023) is set higher than a third middle value (SMB1023) that is between SHB1023 and SLB1023.
摘要:
In one embodiment of the present invention, a display device is enabled to make the display impulse and to improve the charging characteristics of pixel capacities while suppressing the complexity of a drive circuit or the like and the increase in the operating frequency. In an active matrix substrate of a liquid crystal display device, each pixel electrode is connected through a pixel TFT with a source line and through a discharging TFT with a holding capacity line. For one frame period, a liquid crystal capacity, as established by the pixel electrode corresponding to each display line and a common electrode, is charged, when the pixel TFT is turned ON by a pixel scanning signal on a pixel gate line, and is then discharged when the discharging TFT is turned ON by a discharging scanning signal on a discharging gate line. The source line is subjected to a 2-H dot inverse drive but to a charge share for every horizontal periods.
摘要:
An active matrix substrate in which wherever a short between adjacent pixel electrodes of a liquid crystal panel is located in peripheral portions of the pixel electrodes, the short can be efficiently corrected without forming both short-circuited pixels into black dots, and a liquid crystal panel having the active matrix substrate, as well as methods of correcting the AM substrate and the liquid crystal panel. Each of pixel electrodes arranged in a matrix in an active matrix substrate is divided into a plurality of minute regions, and the minute regions are integrally connected by electrically connecting portions. A plurality of lines arranged to transmit signals to each of the pixel electrodes are placed so as not to coincide with the electrically connecting portions of each of the pixel electrodes.