Samsung Display Co., Ltd.

Samsung Electronics Co., Ltd.

Yong-Soon Lee

Chang-Soo Lee

Seung-Hwan Moon

Jae-Hoon Lee

Nam-Soo Kang

Haeng-Won Park

Young-Su Kim

Yu-Han Bae

Jun-Yong Song

Chang-Ho Lee

Whee-Won Lee

Dong-Gyu Kim

Seong-Young Lee

Min-cheol Lee

Sung-Man Kim

Seung-Soo Baek

Sung-jae Moon

Sang-Jin Jeon

Yun-Seok Choi

Byeong-Doo Kang

Sang-Gon Lee

Hee-Bum Park

Bong-Jun Lee

Beom-jun Kim

Po-Yun Park

Hoi-Sik Moon

Hyeong-Jun Park

Back-Won Lee

Shin-Tack Kang

Kyung-Uk Choi

Yeon-Kyu Moon

Yong-sik Hwang

Chang-ho Lee

Young-Suk Ha

Ock-Jin Kim

Chang Sin Kim

Yong-Sik Hwang

Ock Jin Kim

Jeong-Bong Lee

Jun-yong Song

Whee-won Lee

Seung-hwan Moon

Mi-Kyung Kang

Chang-Sin Kim

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 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

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 method of controlling an output voltage of an apparatus is provided. The method includes comparing an input voltage of the apparatus with a reference voltage, activating the output voltage when the input voltage is greater than or equal to the reference voltage, comparing the input voltage with a first low limit voltage or a first high limit voltage, comparing a first elapse time with a reference time when the input voltage is less than or equal to the first low limit voltage, comparing a second elapse time with the reference time when the input voltage is greater than or equal to the first high limit voltage, and deactivating the output voltage when the first elapse time or the second elapse time is longer than or equal to the reference time.

Method of controlling an output voltage, output voltage controlling apparatus for performing the method and display apparatus having the output voltage controlling apparatus

A display device includes a display panel including data lines and scan lines coupled, a data driver configured to supply data voltages to the data lines based on digital video data, a scan driver configured to supply scan signals to the scan lines, a timing controller configured to select one of a normal mode and a self-refresh mode based on a panel self-refresh enable signal, where the data and scan drivers are driven by a first frame frequency in the normal mode and by a second frame frequency lower than the first frame frequency in the self-refresh mode, and a power supply source configured to supply driving voltages to the data and scan drivers and the timing controller and to transmits a direct current power voltage to an outside thereof, where a transmission of the direct current power voltage is blocked during a blank period in the self-refresh mode.

Display device and method for driving the same

Gate driving unit and display device having the same

A gate-on voltage generator that can enhance display quality at low temperatures, a driving device, and a display apparatus having the same, in which the gate-on voltage generator includes a temperature sensor having an operational amplifier configured to receive a driving voltage and produce a temperature-dependent variable voltage, the level of which varies according to the ambient temperature, and a charge pumping unit shifting the temperature-dependent variable voltage by the voltage level of a pulse signal and generating a gate-on voltage.

Gate-on voltage generator, driving device and display apparatus comprising the same

Growing community of inventors

Cheonan-si, South Korea

Yong-Soon Lee