Abstract: A picture quality controlling method including determining a charge characteristic compensation data of a link sub-pixel electrically connected to a defect sub-pixel and a normal sub-pixel, judging a first and second display surfaces different in brightness from each other, determining a first compensation data which compensates a brightness of the first display surface, modulating the test data using the first compensation data, determining a second compensation data that corrects a brightness of a bordering part inclusive of a part of the first display surface and a part of the second display surface between the first and second display surfaces, adding the first and second compensation data, storing the charge characteristic compensation data and the added compensation data at a memory; adjusting a video data to be displayed in the link sub-pixel using the charge characteristic compensation data, and adjusting video data to be displayed in the first display surface and the bordering part using the added co

Abstract: The present invention relates to a method for setting a compensation region for an irregular defect region in an image display device, including the steps of detecting an irregular display defect, setting a horizontal width of the irregular defect region detected thus, generating a plurality of guide lines which divide the irregular defect region in a horizontal direction along the horizontal width set thus automatically, setting upper and lower side boundary lines to the irregular defect region at every interval of the plurality of the guide lines to generate a plurality of main compensation regions defined by the plurality of guide lines and the upper and lower side boundary lines, and generating a plurality of upper, lower, left, and right supplementary compensation regions at upper, lower, left, and right sides of the plurality of main compensation regions, which maintain a gap of each of the plurality of the guide lines, automatically.

Abstract: A flat panel display device and a picture quality controlling method thereof is provided. The flat panel display device includes a display panel. A memory stores location information about a panel defect location on the display panel and a compensation value to be dispersed for a plurality of frame periods. A compensating part detects the data to be displayed at the panel defect location and adjusts the data to be displayed at the panel defect location with the compensation value from the memory.

Abstract: This invention relates to a flat panel display device that is adaptive for optimizing data, which are to be displayed in a panel defect area, in used of a compensation value of a compensation circuit as well as compensating defect pixels by a repair process, and a method of controlling a picture quality thereof. A flat panel display device according to an embodiment of the present invention includes a display panel; a memory which stores a first compensation data, a second compensation data and a third compensation data; a first compensation part; a second compensation part; a third compensation part; and a driver for driving the display panel in use of the data modulated by the first to third compensation parts.

Abstract: A flat panel display, a fabricating method thereof, a fabricating apparatus thereof, a picture quality controlling method thereof and a picture quality controlling apparatus for reducing a recognizing degree of a defective pixel and electrically compensating a charging characteristics of the defective pixel are provided. In the flat panel display, a display panel has a plurality of pixels. A defective pixel is electrically connected to an adjacent normal pixel. A memory stores a location data that indicates a location of the link pixel and a compensation data that compensates for charging characteristics of the link pixel. A compensation circuit modulates a digital video data to be displayed on the link pixel on the basis of the location data and the compensation data.

Abstract: A method of controlling a picture quality of a flat panel display for automatically analyzing a shape, a size, and brightness of a display stain of indeterminate shape having an irregular pattern, and compensating brightness of the display stain of indeterminate shape on the basis of the analyzed result is disclosed.

Abstract: This invention relates to a flat panel display device that is adaptive for perfectly compensating a panel defect by performing an electrical compensation on pixels in a panel defect location, and a method of controlling a picture quality thereof. A flat panel display device according to an embodiment of the present invention includes a display panel which has a non-defect area and a panel defect area; a memory which stores a first compensation, a second compensation data, a third compensation data, a fourth compensation data, and a fifth compensation data; a compensation part; and a driver for driving the display panel in use of the data modulated by the compensation part.

Abstract: A flat panel display device including a linked pixel formed of a first pixel electrically connected to a pixel adjacent to the first pixel; a memory storing the location of a panel defect area, a panel defect compensation data for compensating for a brightness difference of the panel defect area, location data describing a location of the linked pixel, charge characteristic compensation data for compensating for a charge characteristic of the linked pixel; and a compensation circuit to modulate the data to be displayed at the panel defect area using at least one of a frame rate control method and a dithering method and to modulate a charge characteristic of a digital video data to be displayed at the linked pixel based on the location data and the panel defect and charge compensation data stored in the memory.

Abstract: A flat panel display device and a picture quality controlling method thereof is provided. The flat panel display device includes a display panel. A memory stores location information about a panel defect location on the display panel and a compensation value to be dispersed for a plurality of frame periods. A compensating part detects the data to be displayed at the panel defect location and adjusts the data to be displayed at the panel defect location with the compensation value from the memory.

Abstract: A method of fabricating a flat panel display includes, judging a panel defect area and a non-defect area of a display panel, generating a first compensation data for compensating the panel defect area, first modulating a data of the panel defect area by using the first compensation data, judging a brightness at a border between the panel defect area and the non-defect area of the display panel after compensating the panel defect, generating a second compensation data for compensating the border and the panel defect area, second modulating a data of the border and the panel defect area by using the second compensation data, adding the first compensation data and the second compensation data to calculate a resultant compensation data, and storing the resultant compensation data at a data modulation memory.

Abstract: A flat panel display device may improve picture quality by compensating a panel defect by use of a circuit and a picture quality controlling method. A flat panel display device includes a display panel. A memory stores a location information and a compensation value for a panel defect location on the display panel. A first converter calculates a brightness and color difference signals from red, green, blue video signals to be displayed in the display panel. The first converter expands the number of data bits of the brightness signal to generate the expanded brightness signal. A compensating part generates a compensated brightness signal by increasing or decreasing the expanded brightness signal of the video signal to be displayed in the panel defect location. A second converter calculates the red, green, blue signals from the color difference signal and the compensated brightness signal, and generates the compensated video signal by reducing the number of bits of the calculated red, green, blue signals.

Abstract: A flat panel display device includes a display panel, a memory storing a compensation value that corresponds to a panel defect location, the panel defect location being where any one of a brightness and a color difference exists compared to other part of the display panel, a compensating unit to adjust image data to be displayed in the panel defect location using the compensation value, and a driver to apply the adjusted image data from the compensating unit to the display panel.

Abstract: A method of controlling a picture quality of a flat panel display device includes storing a first compensation data used to compensate a panel defect area of a display panel, wherein the first compensation data is judged by a first inspection process, storing a second compensation data used to compensate a boundary between the panel defect area and a non-defect area of the display panel, wherein the second compensation data is judged by a second inspection process; a first compensation step to modulate data using the first compensation data stored in a memory, wherein first modulated data are supplied to the panel defect area; a second compensation step to modulate data using the second compensation data stored in the memory, wherein second modulated data are supplied to the boundary of the panel defect area and the non-defect area; and displaying the second modulated data on the display panel.

Abstract: A flat panel display device and a picture quality controlling method thereof is provided. The flat panel display device includes a display panel. A memory stores location information about a panel defect location on the display panel and a compensation value to be dispersed for a plurality of frame periods. A compensating part detects the data to be displayed at the panel defect location and adjusts the data to be displayed at the panel defect location with the compensation value from the memory.

Abstract: A picture quality control system can determine a location of a display panel defect. The system can calculate data used to compensate for the display defect and modulate the compensation data on a video signal to compensate for the defect. The defect may be associated with a pixel or with a display panel area. A picture quality system may include a memory and a compensation circuit. The memory may store compensation data that represents a panel defect location and/or a charge characteristic. The compensation circuit may process the compensation data to increase or decrease brightness information and/or component information of a video signal.

Abstract: A video display device including an integrated atypical/typical defect compensation circuit is disclosed. The video display device includes a display panel, a memory storing atypical/typical defect information used to compensate atypical/typical defect regions of the display panel, and an integrated atypical/typical compensation circuit including a first compensator for compensating input data to be displayed on the atypical/typical defect regions, using the atypical/typical defect information from the memory, and a second compensator for finely compensating the data compensated by the first compensator, using first and second dithering patterns. The compensation circuit supplies data to be displayed on normal regions, without compensation.

Abstract: The present invention relates to a method for setting a compensation region for an irregular defect region in an image display device, including the steps of detecting an irregular display defect, setting a horizontal width of the irregular defect region detected thus, generating a plurality of guide lines which divide the irregular defect region in a horizontal direction along the horizontal width set thus automatically, setting upper and lower side boundary lines to the irregular defect region at every interval of the plurality of the guide lines to generate a plurality of main compensation regions defined by the plurality of guide lines and the upper and lower side boundary lines, and generating a plurality of upper, lower, left, and right supplementary compensation regions at upper, lower, left, and right sides of the plurality of main compensation regions, which maintain a gap of each of the plurality of the guide lines, automatically.

Abstract: Circuit for compensating a display defect in a video display device of the present invention includes a memory having position information on a plurality of regular patterned defective regions of a display panel, gray scale section information, a defect level data on each of the regular patterned defective regions, and a plurality of compensation data on each of the defect level data stored therein, a first compensation unit, upon reception of data to be displayed on the regular patterned defective regions, for determining defect level data on the regular patterned defective regions of the data to be displayed, selecting a compensation data set on the defect level data determined thus, and selecting a compensation data on the data to be displayed from the compensation data selected thus, for compensating the data to be displayed, and a second compensator for distributing the data compensated thus at the first compensation unit spatially and temporally by using dither patterns for making fine compensation, the

Abstract: A video display device includes a display panel; a memory storing defect information for compensating data to be displayed on defect regions of the display panel; a compensation circuit comprising a first compensator that compensates the data to be displayed on the defect regions using the defect information from the memory, and a second compensator that finely compensates the data compensated by the first compensator using a first dither pattern, the compensation circuit supplying data to be displayed on normal regions without compensation; a timing controller comprising a dithering unit for finely compensating data output from the compensation circuit, using a second dither pattern having a size larger that a size of the first dither pattern; and a panel driver for driving the display panel under a control of the timing controller.

Abstract: A fabricating method of a flat panel display device includes inspecting the flat panel display device by supplying test data and a test scan signal to data electrodes of the flat panel display device to generate an inspection result, judging a location of a panel defect in the flat panel display device and a degree of the panel defect at the panel defect location in accordance with the inspection result and determining compensation data for compensating the degree of the panel defect, and storing the compensation data for compensating the degree of the panel defect at a data modulation memory of the flat panel display device.