Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Korea Advanced Institute of Science and Technology

Seung-Hwan Moon

Nam-Soo Kang

Yong-Soon Lee

Back-Won Lee

Jae-Hoon Lee

Sang-Soo Kim

Haeng-Won Park

Sung-Man Kim

Seong-Young Lee

Dong-Gyu Kim

Jun-Yong Song

Whee-Won Lee

Yu-Han Bae

Chang-Ho Lee

Young-Su Kim

Yun-Jae Park

Jun-Pyo Lee

Sun-Kyu Son

Kyung-Uk Choi

Hyun-Seok Ko

Seung-Woo Lee

Seung-Soo Baek

Dong-Won Park

Ki-Chan Lee

Jin Hee Jeon

Ji-Hoon Kim

Hyung-Guel Kim

Nam-Gon Choi

Woo-Chul Kim

Jin-Ho Ha

Moon-Shik Kang

Sung-jae Moon

Sang-Gil Lee

Byoung-Jun Lee

Jung-Hwan Cho

Min-cheol Lee

Mun-Soo Park

Kyung-Eun Lee

Jang-Hyun Yeo

Seoung-Bum Pyoun

Jang-Kun Song

Hyang-Shik Kong

Jung-Hwan Kim

Jong-Woong Chang

Jae-Han Lee

Jong-Hwan Lee

Bong-Jun Lee

Beom-jun Kim

Ji-Eun Jang

Myung-Koo Hur

Po-Yun Park

Jin-Hong Kim

Bon-Yong Koo

Won-hee Lee

Yun-Jae Kim

Hyeong-Jun Park

Byung-Kil Jeon

Shin-Tack Kang

Sang-Moon Moh

Hyong-Gon Lee

Won-Sik Oh

Yong-Bum Kim

Sun-Koo Kang

Myeong-Su Kim

Ok-Kwon Shin

Nam-Deog Kim

Nam-Hee Goo

Kyong-Ju Shin

Bo-Ram Kim

Gun-Woo Moon

Su-Hyun Kwon

Young-Il Ban

Yeon-Kyu Moon

Byeong-Doo Kang

Jong-Jae Lee

Sung-In Kang

Myoung-Chul Kim

Gyeong-Ub Moon

Yun-Hee Kwak

Inn-Sung Lee

Young-Suk Ha

Hyun-Su Lee

In-jae Hwang

Bon-Sung Koo

Han-Jin Ryu

Hong-Sig Chu

Sang-Heon Park

Chong-Chul Chae

Kyung-Ha Kim

Kyun-Ho Kim

Sang-don Bae

Shim-Ho Yi

Kwang-Jae Kim

Jae-jin Choi

Min-Ho Park

Eui-Dong Hwang

Jun-Dal Kim

Ju-Man Lee

Go-Eun Cha

Jeong-Bong Lee

A display panel includes an amorphous silicon gate driver in which a lower voltage than the gate-off voltage output from the gate driver is applied to an adjacent stage as a low voltage transmission signal.

Display panel

Display panel having a gate driver integrated therein

A display panel driving apparatus includes a data processing part. The data processing part calculates a first pretilt value of previous image data to output a first pretilt signal, calculates a second pretilt value of current image data to output a second pretilt signal, analyze a luminance distribution of unit pixels from image data to output luminance distribution analysis data, analyzes a color pixel to which a pretilt is applied based on the unit pixel from the image data to output color analysis data, outputs a determination signal indicating whether the pretilt is applied to the image data, according to the luminance distribution analysis data and the color analysis data, and outputs pretilt compensation image data according to the first pretilt signal, the second pretilt signal and the determination signal, as compensation image data.

Display panel driving apparatus, method of driving display panel using the same and display apparatus having the same

A display device for improving display quality includes a pulse compensator, a gate driver, a source driver and a display panel. The pulse compensator generates a clock signal of which amplitude decreases when peripheral temperature increases and increases when peripheral temperature decreases. The gate driver outputs a gate driving signal to the display panel based on the clock signal, wherein an amplitude of the gate driving signal decreases when the peripheral temperature increases and the amplitude of the gate driving signal increases when the peripheral temperature decreases. The source driver provides a gray-scale voltage based on gray-scale data, and the display panel displays an image corresponding to the gray-scale voltage in response to the gate driving signal. Therefore, the deterioration in the drive capability of the gate driver depending on the peripheral temperature may be prevented and display quality of the display device may be improved.

Display device compensating clock signal with temperature

A gate driver includes multiple stages. Each stage has a circuit portion and a wiring portion. The wiring portion delivers first and second clock signals to the circuit portion. Further, the wiring portion includes first and second clock wirings receiving the first and second clock signal, respectively, first connecting wirings electrically connecting the first clock wiring with a first every other stage, and second connecting wirings electrically connecting the second clock wiring with the odd-numbered stages. Further, the wiring portion includes third connecting wirings electrically connecting the first connecting wiring with a second every other stage and fourth connecting wirings electrically connecting the second connecting wiring with the even-numbered stages. This configuration may prevent the gate driver from operating erroneously and reduce power consumed by the gate driver.

Driving unit and display device having the same

A display device includes a pixel matrix having pixel rows and pixel columns and including pixels having switching elements positioned alternately at a corner near an upper and a lower side of each pixel row and positioned alternately at a corner near an upper and a lower side of and alternately at a corner near a left and a right side of each pixel column; multiple pairs of gate lines transmitting a gate-on voltage; and multiple data lines transmitting data voltages, wherein each pair of gate lines are disposed at the upper and lower sides of each pixel row with the pixels in each row connected to the gate line positioned nearest the respective switching element, and each data line is disposed between adjacent pairs of pixel columns and connected to pairs of pixels where one pixel of the pair has a switching element positioned nearest the respective data line.

Display device

Gate-driving circuitry of a thin film transistor array panel is formed on the same plane as a display area of the transistor array panel. The gate-driving circuitry includes driving circuitry and signal lines having apertures. Thus, a sufficient amount of light, even though illuminated from the thin film transistor array panel side, can reach a photosetting sealant overlapping at least in part the gate-driving circuitry. The thin film transistor array panel and the counter panel are put together air-tight and moisture-tight. Consequently, the gate-driving circuitry can avoid corrosion by moisture introduced from outside. Gate-driving circuitry malfunctions can also be reduced.

Thin film transistor array panel and display device including the same

A display apparatus includes a display panel which displays an image, a compensation area determiner which divides a display area of the display panel into a compensation area and a normal area, a compensation coefficient determiner which determines a compensation coefficient corresponding to input data of the compensation area, a compensation look up table which stores a noise compensation data which compensates a luminance difference of the compensation area by an interference noise of a light-source driving signal, and a correction data calculator which calculates a correction data corresponding to the input data of the compensation area using the compensation coefficient and the noise compensation data.

Display apparatus and method of driving the same

Exemplary embodiments of present invention relate to an error detecting apparatus for a gate driver improving a reliability of a display apparatus, a display apparatus having the error detecting apparatus, and a method of detecting an error of the gate driver using the error detecting apparatus. An exemplary embodiment discloses an error detecting apparatus including an error detecting part configured to receive a gate signal of a gate driver and determine whether a status of the gate driver is in a normal status or an error status based on the gate signal, a memory configured to store the status of the gate driver, and a signal outputting part configured to selectively output a clock signal and an error signal based on the status of the gate driver stored in the memory.

Error detecting apparatus for gate driver, display apparatus having the same and method of detecting error of gate driver

Growing community of inventors

Yongin-si, South Korea

Seung-Hwan Moon