Samsung Display Co., Ltd.

Samsung Displayco., Ltd.

Yoongu Kim

Bongim Park

Hyun Sik Hwang

Ik Hyun Ahn

Seung Young Choi

Daecheol Kim

Tae-Jong Jun

Ikhyun Ahn

Hyunsik Hwang

Byungkook Sim

Woojoo Lee

Kihyun Pyun

Jae-Han Lee

Wonhee Lee

Nam-Gon Choi

Dae-Sik Lee

Namjae Lim

Il Ho Lee

Kwan-Young Oh

Jai-Hyun Koh

Hoi Sik Moon

Jaesung Bae

Keunoh Kang

Seongmo Hwang

Sangsu Han

Taehyeong An

Akihiro Takegama

Sang Min Jeon

Byoung Seok Yoo

Youngsoo Sohn

Jaejin Pyun

Sukjin Park

A method of driving a display panel includes determining a present polarity of a pixel data signal of a present frame, generating a first compensated grayscale of the pixel data signal of the present frame using a pixel data signal of a previous frame, the pixel data signal of the present frame, and the present polarity, and displaying an image using the first compensated grayscale. The first compensated grayscale varies according to the present polarity.

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

A light source apparatus includes a light source and a light source driver. The light source includes a plurality of scan blocks. Each scan block includes a plurality of local dimming blocks. The light source driver includes a plurality of channels configured to output light source driving signals to the plurality of local dimming blocks. The light source driving signal includes a light source intensity value representing a light intensity of a local dimming block from among the plurality of local dimming blocks and a delay value representing a degree of a delay of the local dimming block. The delay value is determined by a scan delay value varied according to the plurality of scan blocks and a delay parameter.

Light source apparatus and display apparatus having the same

A display apparatus includes a local dimmer, an image compensator, a display panel and a light source. The local dimmer is configured to generate a dimming signal representing a degree of dimming for a light source block based on input image data. The image compensator is configured to determine a grayscale gain based on input grayscale value of the input image data and the dimming signal and to compensate luminance of the input image data based on the grayscale gain. The display panel is configured to display an image based on the compensated input image data. The light source is configured to provide light to the display panel based on the dimming signal.

Display apparatus and method of driving the same

A method of operating a display device involves detecting whether a frame mode of the display device is a normal mode in which image data are received with a constant frame rate or a variable frame mode in which the image data are received with a variable frame rate. An output buffer drivability of a data driver included in the display device may be set according to the detected frame mode, and an image is displayed by outputting data voltages corresponding to the image data with slew rates corresponding to the set output buffer drivability. Power consumption in output buffer amplifiers may be selectively lowered by setting a relatively low output buffer drivability corresponding to a relatively low slew rate.

Display device supporting normal and variable frame modes

A display device includes a backlight unit including a plurality of light emitting blocks, a first controller configured to generate first block representative value information for first pixel blocks based on first image data, and a second controller configured to generate second block representative value information for second pixel blocks based on second image data. The first controller receives the second block representative value information from the second controller, and the second controller receives the first block representative value information from the first controller. The first and second controllers generate duty information for the plurality of light emitting blocks based on the first and second block representative value information, and generate light profile information of the backlight unit. The first controller compensates the first image data based on the light profile information, and the second controller compensates the second image data based on the light profile information.

Display device including a plurality of controllers performing local dimming

A method of driving a display panel includes outputting a gate signal to the display panel, varying a slew rate of a data voltage to be output to the display panel according to a position in the display panel at which the data voltage is to be applied, outputting the data voltage having the varied slew rate to the display panel, and displaying a grayscale on the display panel in response to the gate signal and the data voltage having the varied slew rate.

Method of driving a display panel capable of compensating for a difference in charging rates between pixels, and a display apparatus for performing the same

A display apparatus includes a display panel comprising a plurality of data lines, a plurality of gate lines crossing the plurality of data lines and a plurality of pixels connected to the plurality of data lines and the plurality of gate lines, each of the plurality of pixels comprising a plurality of color sub-pixels, and a data driver configured to output data voltages of a positive polarity and a negative polarity opposite to the positive polarity with respect to the reference voltage to the plurality of data lines, wherein a polarity stuck period of at least one color sub-pixel of the plurality of color sub-pixels is different from a polarity stuck period of other color sub-pixel of the plurality of color sub-pixels, and the polarity stuck period is a pixel distance in which a same polarity moves per a frame.

A display apparatus includes pixels connected to gate lines and data lines. Among the pixels arranged in k-th and (k+1)th columns between j-th and (j+1)th data lines, the pixels arranged in the k-th column are connected to one data line of the j-th and (j+1)th data lines, the pixels arranged in the (k+1)th column are connected to the other data line of the j-th and (j+1)th data lines, and the pixels arranged in the k-th and (k+1)th columns are alternately connected to the j-th and (j+1)th data lines in a unit of two pixels.

Display apparatus

A display apparatus includes a display panel that displays a second image in a 3D mode, a barrier panel that forms a barrier pattern that separates the second image into a left-eye image and a right-eye image, a touch sensing part that includes third electrodes capacitively coupled to a portion of the electrodes included in the barrier panel, and a coordinate calculator. The coordinate calculator measures a variation of capacitance between the portion of the electrodes included in the barrier panel and the third electrodes.

Display apparatus including barrier panel and touch sensing part

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Seoul, South Korea

Yoongu Kim