Samsung Display Co., Ltd.

Samsung Electronics Co., Ltd.

Seoul National University

Korea University Research and Business Foundation

Hoi-Sik Moon

Jung-Suk Han

Jong-Hee Na

Kang-Hyun Kim

Jae-Seob Chung

Se-Yun Kim

Chang-Soo Lee

Hak-Mo Choi

Min-Yup Chae

Woo-jin Jung

Gwang-Ho Nam

Woo-Jin Jung

Jun-Il Park

Jae-Hoon Lee

Gi-Cherl Kim

Se-Ki Park

Jun-Pyo Lee

Bong-Im Park

Jae-won Jeong

Yong-Jun Choi

Bong-Ju Jun

Byoung-Jun Lee

Dong-Min Yeo

Jae-Seok Choi

Hyun-Su Lee

Young-Gil Kim

Mingyu Kim

Min-Kyu Park

Jae-Han Lee

Dong-Won Park

Ji-Eun Jang

Jun-Yong Song

Young-Jun Seo

Yong-Soon Lee

Yun-Seok Lee

Hee-Joon Kim

Sung-Jea Ko

Ho-Sik Shin

Si-Joon Song

Woo-Young Lee

Jee-Hoon Jeon

Young-Su Han

Duc-Han Cho

Ji-Hye Choi

Young-Suk Ha

Jeongwoon Lee

Shim-Ho Yi

Byoung-Seok Yoo

Go-Eun Cha

Jeong-Woon Lee

Heejoon Kim

Sung-Goon Jung

Hyung-Woo Yim

A spot detecting apparatus includes a photographing part and a spot detecting part. The photographing part photographs, in a first resolution, an image displayed on a display panel to output first resolution image data, and photograph, in a second resolution, the image displayed on the display panel to output second resolution image data, where the second resolution is higher than the first resolution, and the image displayed on the display panel includes a first spot greater than or equal to a reference size and a second spot less than the reference size. The spot detecting part receives the first resolution image data and the second resolution image data, and subtracts the first resolution image data from the second resolution image data to detect the second spot.

Spot detecting apparatus and method of detecting spot using the same

A display device including a display panel includes a plurality of pixels corresponding to a plurality of regions, an image compensator configured to obtain compensation data for the pixels by performing respective sampling compensation operations for the regions, and to generate compensated image data by compensating input image data based on the compensation data, the compensation data being generated by performing at least two of the sampling compensation operations based on respective sampling matrices having different sizes, and a display panel driver configured to drive the display panel to display an image corresponding to the compensated image data on the display panel.

Display device and method of driving the same

A display panel is divided into multiple areas respectively driven by multiple drivers, and the multiple areas are adjacent to each other along a first direction. An object moves along the first direction between a first frame and a second frame and is displayed on the display panel. The moving speed of the object is compared with a reference speed. A main compensation frame is added between the first frame and the second frame. A first high speed compensation frame is added between the first frame and the main compensation frame when the moving speed is higher than or equal to the reference speed. A first low speed compensation frame is added between the first frame and the main compensation frame when the moving speed is lower than the reference speed, and the first low speed compensation frame is different from the first high speed compensation frame.

Method of driving display panel, timing controller for performing the same and display apparatus having the timing controller

A method of driving a display apparatus including generating first gamma correction data of input data using a first gamma look-up table ('LUT'), determining a Mura correction value of the first gamma correction data, adding the Mura correction value to the input data to generate added input data, generating second gamma correction data of the added input data using the first gamma LUT, and driving a pixel in the display panel using the second gamma correction data of the added input data. The Mura correction value is determined after the gamma correction data is generated, and the generating of the added input data is performed prior to any gamma correction being performed on the input data.

Display apparatus, method of driving the same and vision inspection apparatus for the same

A display apparatus includes a gamma controller configured to determine whether the target pixel unit is driven in both time division method and space division method based on a plurality of comparison values and a reference condition, and an output controller configured to generate normal gamma-data of the target pixel unit using a normal gamma curve if the plurality of comparison values satisfy the reference condition and to generate high gamma-data and low gamma-data of the target pixel unit using a high gamma curve and a low gamma curve in both time division method and space division method if the plurality of comparison values do not satisfy the reference condition.

Display apparatus and method of driving the same

A vision inspection apparatus includes a tri-stimulus measuring part configured to measure gray tri-stimulus values of a sample grayscale and color tri-stimulus values of a full-grayscale, a color tri-stimulus generating part configured to generate color tri-stimulus values of the sample grayscale using the gray tri-stimulus values of the sample grayscale and the color tri-stimulus values of the full-grayscale, and a color correction value generating part configured to generate color grayscale correction value using the gray tri-stimulus values of the sample grayscale and the color tri-stimulus values of the sample grayscale.

Display panel inspection apparatus

A display apparatus includes a display panel that comprises a plurality of pixels, a first image data corrector configured to calculate a Mura correction value of input data based on gamma correction data of the input data, to add the Mura correction value to the input data to generate added input data, and to generate gamma correction data of the added input data, and a data driver configured to drive the plurality of pixels based on the gamma correction data provided from the first image data corrector.

A method of driving a display panel includes outputting a dummy gate voltage to a gate line disposed on a boundary of a first area of the display panel and a second area of the display panel adjacent to the first area during a blank period between a plurality of scanning periods and outputting a dummy data voltage to a data line during the blank period.

Method of driving display panel and display apparatus for performing the same

A display apparatus includes a background image estimator configured to restructure a plurality of pixel signals of a panel image corresponding to a plurality of pixels arranged in an (n&#xd7;m) matrix array into a row dataset and a column dataset and generate a row background image and a column background image with a Mura defect removed from the panel image using the row dataset and the column dataset through a Principal Component Analysis (PCA), a Mura image generator configured to generate a row binary image and a column binary image including a background and the Mura defect using differences between the panel image and the row background image and between the panel image and the column background image.

Vision inspection apparatus and method of detecting Mura thereof

A method of driving a display panel is provided. The display panel includes first through n-th gate lines and a plurality of pixels each connected to one of the first through n-th gate lines (where n is a natural number). The method includes charging pixels connected to the n-th gate line with first data voltages corresponding to a first frame image during a first period, charging pixels connected to the first gate line with the first data voltages during the first period, charging the pixels connected to the first gate line with second data voltages corresponding to a second frame image during a second period subsequent to the first period, and charging pixels connected to the second gate line with the second data voltages during the second period.

Method of driving a display panel and a display apparatus for performing the same

A method of driving a display panel includes generating corrected grayscale data utilizing a grayscale correction value of a reference pixel including m&#xd7;n pixels, 'm' and 'n' being natural numbers greater than zero, and driving M&#xd7;N pixels of the display panel based on the corrected grayscale data, &#x201c;M&#x201d; and &#x201c;N&#x201d; being natural numbers greater than zero. &#x201c;M&#x201d; is greater than &#x201c;m&#x201d; and &#x201c;N&#x201d; is greater than &#x201c;n.&#x201d;

Method of driving a display panel, display apparatus performing the same, method of determining a correction value applied to the same, and method of correcting grayscale data

A method of reducing a total, per device, measurements taking time in a calibration system that uses a sensor array that serially reports out its readings and a data processing unit that needs to receive the reported out readings in good order before allowing an under-measurement first display device to advance away from a measurements taking station includes the step of not driving the first display device with all of required full screen test images where each is a full screen display of only a respective one of a predetermined minimum number of grayscale values produced as a minimum number of needed full screen sample images and; in place of at least a first plurality of the not-produced full screen images, driving the under-measurement first display device with a partial screen multi-pattern that presents a plurality of different grayscale values including ones not presented by those of all of the full screen test images that are used to drive the under-measurement first display device. The serially reported out readings from the sensor array for the partial screen multi-pattern and for the full screen test images are obtained and used to generate virtual full screen sample images based on the obtained partial screen multi-pattern and for the full screen test images.

Method of more quickly calibrating display panels and calibration apparatus for performing the same

A method of displaying an image on a display panel which comprises a plurality of pixels arranged as a matrix type includes measuring a tristimulus value of X, Y and Z values of a displayed image to generate a target curve, generating a corrected grayscale data of a red pixel, a green pixel and a blue pixel using X, Y and Z values of the target curve and converting the corrected grayscale data to a data voltage to provide a data line of the display panel with the data voltage.

Method of displaying an image, display apparatus performing the same, method of calculating a correction value applied to the same and method of correcting grayscale data

A vision inspection apparatus includes a first luminance profile generator configured to generate a plurality of first luminance profiles corresponding to the plurality of reference grayscales, a gamma corrector configured to calculate a gamma correction value of the display apparatus using the plurality of first luminance profiles corresponding to the plurality of reference grayscales, and a second luminance profile generator configured to apply the gamma correction value to each of the plurality of first luminance profiles and to generate a plurality of second luminance profiles corresponding to the plurality of reference grayscales.

Vision inspection apparatus and method of compensating gamma defect and mura defect thereof

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Asan-si, South Korea

Hoi-Sik Moon