Samsung Electronics Co., Ltd.

Kook-Chul Moon

Il-Gon Kim

Tae-Hyeong Park

Chul-Ho Kim

Cheol-Min Kim

Hoon-Kee Min

Kee-Chan Park

Hyun-Dae Kim

Joo-Sun Yoon

Yong-Ho Yang

Soong-Yong Joo

Pil-mo Choi

Yang-Suk Ahn

Hong-Gyun Kim

Young-Nam Yon

An amplifier includes a biasing section, first and second differential amplifying sections and an output section. The biasing section outputs first and second bias currents based on first and second power source voltages. The first differential amplifying section outputs a first amplified voltage based on the first bias current. The second differential amplifying section outputs a second amplified voltage based on the second bias current. The output section outputs the second power source voltage based on the first amplified voltage and the first power source voltage, and outputs the first power source voltage based on the second amplified voltage and the second power source voltage. Therefore, a variation of the threshold voltage is compensated to enhance display quality.

Data driver capable of an offset compensation and display apparatus having the same

A thin film transistor array panel is provided. The array panel includes a storage capacitance that is substantially uniform, and allows for a relatively large capacitance in a relatively small area. In some embodiments, the panel includes: a substrate; a plurality of semiconductor regions on the substrate, including a plurality of source and drain regions doped with a first impurity type and a dummy region doped with a second impurity type, and an intrinsic region having storage and channel regions; a gate insulating layer covering at least a portion of the semiconductor regions; a gate line including a gate electrode at least partially overlapping the channel region and formed on the gate insulating layer; a storage line including a storage electrode at least partially overlapping the storage region and formed on the gate insulating layer; a data line including a source electrode connected to the source region and formed on the gate insulating layer; a drain electrode connected to the drain region and the dummy region and formed on the gate insulating layer; and a pixel electrode connected to the drain electrode.

Thin film transistor array panel with enhanced storage capacitors

A method of fabricating poly crystalline silicon type thin film transistor is disclosed. In the method, before the step of re-crystallization of amorphous silicon to form polycrystalline silicon active pattern, a step for injecting predetermined amount of oxygen atom into the surface part of the amorphous silicon layer. By this addition of step, the surface part of the silicon layer is to be oxidized and the crystal defect in the interface between the gate insulating layer and poly crystalline silicon layer can be cured and the mobility of charge carrier can be improved in the channel of the thin film transistor.

Low temperature polycrystalline silicon type thin film transistor and a method of the thin film transistor fabrication

Amplifier, data driver and display apparatus having the same

Disclosed are a transreflective type LCD, a method of manufacturing the same and a method of thin film transistor thereof. A TFT and a pixel electrode connected with a drain electrode of the TFT are formed on a TFT substrate. The pixel electrode includes a reflective electrode for reflecting a first light from an external and a transmissive electrode for transmitting a second light generated in the transreflective type LCD. The reflective electrode is formed to have a size no more than a size of an area in which the reflective electrode is not overlapped with the transmissive electrode. Thus, visual differences between the reflective and the transmissive modes are reduced. Also, the reflective electrode for reflecting the first light is formed with the TFT through one process, thereby reducing the number of manufacturing processes of the transreflective type LCD and the thickness thereof.

Transreflective liquid crystal display and method of manufacturing the same

Growing community of inventors

Suwon-si, South Korea

Kook-Chul Moon