Samsung Display Co., Ltd.

Amazon Technologies, Inc.

Yong-Jun Jang

Nam-Gon Choi

Su-Hyeong Park

Ji-Myoung Seo

Yun-Ki Baek

Uk-Chul Choi

Hyun-Sik Hwang

Joon-Chul Goh

Cheol-Woo Park

Dong-Won Park

Won-Sik Oh

Ah-Reum Kim

Eun-Ho Lee

Jung-Taek Kim

Hyun-Dae Lee

Gi-Geun Kim

A display device includes a display panel including a plurality of sub-pixels, a grayscale conversion part configured to generate a data signal displaying different grayscales to the sub-pixels at a predetermined time interval, and a data driver configured to convert the data signal into a data voltage and to output the data voltage to the display panel.

Display apparatus and driving method

A display apparatus includes a display panel including a first pixel, a common voltage generator and a timing controller. The common voltage generator generates a reference common voltage, and provides the reference common voltage to the first pixel. The timing controller determines a dithering scheme for the first pixel based on first common voltage information, and generates first output pixel data by applying a dithering function to first input pixel data based on the dithering scheme for the first pixel. The first common voltage information indicates whether the reference common voltage is substantially equal to an optimal common voltage of the first pixel. A first data voltage provided to the first pixel is generated based on the first output pixel data. A polarity of the first data voltage is reversed with respect to the reference common voltage for each predetermined duration. A phase of the first data voltage is symmetric or asymmetric with respect to the reference common voltage depending on the dithering scheme for the first pixel.

Display apparatus and method of operation

A method of compensating an image to be display on a display panel is disclosed. In one aspect, the method includes receiving a first input image and adjusting a contrast sensitivity of the first input image. The method also includes calculating a first derivative of luminance of a pixel included in the adjusted image, calculating a second derivative of the luminance of the pixel, and accumulating the first and second derivatives. The method further includes determining a burn-in causing boundary based at least in part on the accumulated first and second derivatives, receiving a second input image, and comparing the burn-in causing boundary to a boundary of the second input image to determine whether to apply burn-in compensation. The method finally includes compensating a portion of the second input image corresponding to the burn-in causing boundary based at least in part on an unsharpening filter.

Method of compensating image to be displayed on display panel

A method of driving an electro wetting display panel includes applying a first data voltage to a pixel part of the display panel during a first section of a frame and applying a second data voltage different from the first data voltage to the same pixel part during a second section of the frame. The first data voltage is converted from display data based on a first gamma curve. The second data voltage is converted from the display data based on a second gamma curve. Light transmittance through the pixel part is changed based on movement of a fluid within the pixel part.

Method of driving an electro-wetting display panel and electro-wetting display apparatus for performing the same

A display apparatus includes: a panel including a plurality of pixels configured to display an image; an ambient light sensor configured to sense an illumination level of ambient light and to generate ambient light data; a gamma controller configured to control sections of a reference gamma curve based on the ambient light data to generate a controlled gamma curve, the controlled gamma curve defining output data according to input data; a data driver configured to convert an image signal into a data voltage based on the controlled gamma curve and to supply the data voltage to the pixels; and a gate driver configured to supply a gate signal to the pixels.

Display apparatus and liquid crystal display apparatus

A method of driving an electro-wetting display panel including a pixel part is provided. In the method, data voltages are applied to the electro-wetting display panel during a first time of a frame. The frame has the first time and a second time. The first time has a plurality of horizontal periods. The data voltages are generated based on reference gamma voltages. At least one of reference gamma voltages of one of the horizontal periods is different from another of the reference gamma voltages of another of the horizontal periods. A reset voltage is applied to the electro-wetting display panel during the second time of the frame.

Method for driving an electro-wetting display panel and electro-wetting display apparatus for performing the same

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Yongin-si, South Korea

Yong-Jun Jang