Samsung Display Co., Ltd.

Samsung Electronics Co., Ltd.

Jee-Hoon Jeon

Min-Kyu Park

Kwan-Young Oh

Hyoung-Sik Nam

Young-Suk Ha

Po-Yun Park

Hoi-Sik Moon

Jae-won Jeong

Kang-Hyun Kim

Woo-jin Jung

Sung Gon Jung

Jae-Ho Oh

Youn-Jin Jung

Youngsuk Ha

Hyoung Sik Nam

Sung-Goon Jung

A display device is disclosed. The display device includes: a plurality of pixels; a memory storing a lookup table including compensation values for pixels at specific locations of the display. The lookup table also stores compensation values obtained by a bilinear compensation method. The display also includes a data compensator calculating the compensation values corresponding to a location where an image signal is displayed using the compensation values and substitution values stored in the lookup table. The substitution values are obtained by bit-shifting the compensation values acquired by bilinear compensation method. The display device avoids the need to use large and slow divider circuits used in ICs implementing bilinear compensation method.

Display device and integrated circuit chip

A method of displaying an image on a display panel having a plurality of pixels arranged as rows and columns includes calculating a row correction value corresponding to a pixel position of a received data based on an average luminance of pixels in a pixel row of a sample-grayscale image, calculating a column correction value corresponding to the pixel position of the received data based on an average luminance of pixels in a pixel column of the sample-grayscale image, generating correction data for the received data using a row correction value and a column correction value corresponding to a pixel position of the received data, and converting the correction 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 and apparatus of calculating a correction value applied to the same

A display panel apparatus includes a display panel and a timing controller, and a data driver. The display panel includes a first subpixel and a second subpixel. The timing controller is configured to receive a first subpixel data for the first subpixel and a second subpixel data for the second subpixel. When the second subpixel is determined to be defective, the timing controller generates a compensated grayscale of the second subpixel data. The data driver is configured to apply a precharge voltage to the second subpixel and a charging voltage to second subpixel through a data line, wherein the precharge voltage is based on a grayscale of the first subpixel data and the charging voltage is based on the compensated grayscale of the second subpixel data.

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

A compensation table generating system includes a test signal applying part which applies a test signal corresponding to reference gray scales to a display panel, an image obtaining part which obtains a test image of each of the reference gray scales displayed on the display panel based on the test signal, a position information extractor which measures a brightness distribution of each of the reference gray scales of the display panel based on the test image of each of the reference gray scales and extracts a representative position information of an stain area, in which a stain appears, based on the brightness distribution of each of the reference gray scales, a compensation data calculator which calculates a compensation data corresponding to a position of the stain area, and a brightness compensation table which stores the representative position information and the compensation data.

Compensation table generating system, display apparatus having brightness compensation table, and method of generating compensation table

A display device and a system for wirelessly transmitting/receiving an image signal are provided. The display device includes: a display panel that displays an image; an upper housing that is disposed on a front surface of the display panel and has an open window defining a display area; a lower housing that is disposed on a rear surface of the display panel and has a hole formed in a portion of an area corresponding to the display area; and a wireless communication module that is disposed on a rear surface of the lower housing and transmits or receives a wireless signal through the hole.

Display device and system for wirelessly transmitting/receiving image signals

A display apparatus includes a display panel, a plurality of sensors, a read-out circuit, and a control circuit. The display panel includes a plurality of pixels receiving a data signal having a polarity reversed with respect to a common voltage to display an image. The sensors sense light to output sensing signals. The sensors may be integrated into the display panel. The read-out circuit is charged with the sensing signals generating charged signals in response to a sampling signal generated during a period in which the common voltage has a predetermined reference voltage level. The control circuit calculates a position on the display panel from the charged signals received signals from the read-out circuit.

Display apparatus

A display apparatus includes a timing controller, a column driver, a row driver and a display unit. The timing controller outputs a first column clock embedded into image data during an active period, and outputs a second column clock embedded into blank data during a blank period. The column driver detects the first column clock and the image data and converts the image data into a first analog signal using the first column clock, and detects the second column clock and the blank data and converts the blank data into a second analog signal using the second column clock. The first column clock has a voltage level greater than a voltage level of the image data. The second column clock is embedded into the blank data and has a voltage level substantially the same as the voltage level of the image data.

Display apparatus and method of driving the same

Provided are a display device, which can improve display quality by correcting an original image signal whose frame frequency is a first frequency or a second frequency different from the first frequency, and a methodof driving the display device. The display device includes an image signal processor which corrects an original image signal whose frame frequency is a first frequency or a second frequency different from the first frequency and outputs a corrected image signal, a first lookup table which stores image correction data corresponding to an (n&#x2212;1)-th frame and an n-th frame that corresponds to the original image signal having the first frequency, and a display panel which displays an image corresponding to the corrected image signal. A second lookup table, which corresponds to the original image signal having the second frequency, is generated from the first lookup table, and the first or second lookup table is selected based on the frame frequency of the original image signal to output the corrected image signal.

Display device and method of driving the same

A light source module includes a plurality of light-emitting blocks. A local-dimming driver drives the light-emitting blocks based on a received clock signal (first reference clock) and received dimming levels. The clock signal is input to a liquid crystal display panel and is also input to the local-dimming driver but is delayed within the local-dimming driver by fixed propagation delay. A delay modeling part performs modeling of the fixed propagation delay amount. The clock signal input to the local-dimming driver is first phase-compensated (delayed) by a phase compensation amount to synchronize the driving signals output by the local-dimming driver with the clock signal. The sum of the modeled propagation delay amount and the phase compensation amount is equal to an integral multiple of the period of the clock signal. The driving signal of the light-emitting blocks are synchronized and in phase with the clock signal.

Driving device of a light source module, light source module having the driving device, driving method of the light source module, and display device having the driving device

Growing community of inventors

Hwaseong-si, South Korea

Jee-Hoon Jeon