Samsung Display Co., Ltd.

Ji-Yun Son

Ho-Suk Maeng

Bo-Young An

Wook Su Lee

Sung-Cheon Park

Sung-Un Park

Yeon-Shil Jung

Deok-Jun Choi

Eun-Jung Oh

Young-Seob Kim

Dong-Ho Yoon

An image processing device includes a current limiter and a brightness controller. The current limiter calculates compensating data based on an on-pixel ratio of an image signal and calculates a compensation brightness data of the image signal based on the compensating data. The compensating data decreases the driving current of the image signal. The brightness controller selects one of a plurality of gamma sets and one of a plurality of dimming values based on the compensation brightness data.

Image processing device and display device having the same

A luminance controller according to example embodiments includes a gamma set selector to select a reference gamma set from among first through N-th gamma sets respectively corresponding to first through N-th reference luminances, based on a target luminance of a display panel; an initialization voltage selector to select an initialization voltage corresponding to the reference gamma set, from among first through N-th initialization voltage offsets respectively corresponding to the first through N-th gamma sets; a common voltage selector to select a common voltage corresponding to the reference gamma set from among first through N-th common voltage offsets respectively corresponding to the first through N-th gamma sets; and a determiner to determine a target initialization voltage based on the target luminance and the initialization voltage, and to determine a target common voltage based on the target luminance and the common voltage.

Luminance controller and organic light emitting display device having the same

A display device includes a display panel including a first display area and a second display area, a primary driver integrated circuit (IC) to receive first input image of the first display area, to determine a luminance correction factor based on a sum of a first On-Pixel-Ratio (OPR) of the first display area and a second OPR of the second display area, to output a first image data signal to which the first input image data is remapped using the luminance correction factor, a secondary driver IC to receive second input image data of the second display area, to calculate the second OPR, to provide the second OPR to the primary driver IC, and to output a second image data signal to which the second input image data is remapped using the luminance correction factor, and a scan driver.

Display device and method for driving display device

A method and system for controlling power consumption of a display is disclosed. The method includes determining battery voltage, brightness of ambient light, temperature, and adjusting the brightness of the organic electroluminescent display apparatus, or by adjusting the voltage difference between a first power voltage and a second power voltage of the organic electroluminescent display apparatus, according to the battery voltage, the brightness of the ambient light, the temperature, and image data of the organic electroluminescent display apparatus.

Organic electroluminescent display and method of driving based on plurality of operating environmental factors

A gamma correction system and method for a display device are disclosed. According to one aspect, the gamma correction system includes a display panel configured to display an image, a measuring unit configured to acquire optical characteristic information from the image displayed on the display panel, and a display panel driver configured to convert a gamma data result value obtained after performing optical compensation for at least two sample gray values among a plurality of reference luminance values into a corresponding data voltage and calculate a data voltage for the rest of the luminance values for which optical compensation is not performed.

Growing community of inventors

Seongnam-si, South Korea

Ji-Yun Son