Samsung Display Co., Ltd.

Se Yun Kim

Min Su Kim

Hoi Sik Moon

Sang Cheol Park

Si Hun Jang

Jun Pyo Lee

Hee Joon Kim

A display device according to an embodiment includes a plurality of display panels arranged adjacent to each other and each display panel including first pixels in the display panel and second pixels in the display panel and adjacent to a boundary area of the display panels, and a luminance correction unit configured to generate a correction grayscale value for the second pixel. The luminance correction unit includes an image mapping unit configured to map a captured luminance image to a unit pixel image, a de-blurring unit configured to perform a de-blurring operation on the mapped unit pixel image to calculate a correction luminance value for the second pixel, and a correction unit configured to calculate a correction grayscale value for the second pixel corresponding to the calculated correction luminance value of the second pixel.

Display device and method of compensating for luminance of display device

A mura compensation method for a display device in which a data driver and a scan driver disposed at a first side of a pixel unit, includes capturing an image of the pixel unit based on a predetermined first sample gray level; calculating mum luminance of diagonal mura corresponding to the first sample gray level by sharpening the diagonal mura based on light components of the captured image for a first sample area including the diagonal mura; calculating target luminance based on the mura luminance and a luminance distribution of the imaged first sample area; and calculating a first compensation value corresponding to the first sample gray level and a pixel corresponding to the diagonal mura in the first sample area by using the first sample gray level, the mura luminance, and the target luminance.

Method for compensating mura of display device and mura compensation system

An image processing device for a mass produced display device includes an image obtaining capture to provide a single image frame including intensity values for respective coordinates of a display surface of the display device, and an image correcting unit to correct the intensity values of the single image frame of the display surface by using correction amount values with the corresponding correction direction values to provide a de-blurring image frame for the display surface, wherein the image correcting unit includes a correction amount calculating unit to calculate the correction amount values for the respective coordinates by using first derivative values with respect to the intensity values of the single image frame, and a correction direction calculating unit to calculate the correction direction values for the respective coordinates by using second derivative values with respect to the intensity values of the single image frame.

Image processing device and image processing method for correcting images obtained from a display surface of mass produced display device

A luminance distortion compensating apparatus includes an image data receiving circuit and a luminance distortion compensating circuit. The image data receiving circuit is configured to receive grayscale image data and full white image data displayed on a display panel. The luminance distortion compensating circuit is configured to compensate for a luminance distortion generated by a display panel inspecting apparatus inspecting the display panel, in the grayscale image data, using the grayscale image data and the full white image data. Thus, an inspection capability of a display panel inspecting system may be increased.

Luminance distortion compensating apparatus, method of compensating luminance distortion using the same and display panel inspecting system having the same

Growing community of inventors

Yongin-si, South Korea

Se Yun Kim