Samsung Electronics Co., Ltd.

Samsung Display Co., Ltd.

Hyun-Dae Kim

Byoung-Sun Na

Hoon-Kee Min

Kook-Chul Moon

Han-Na Jo

A mask for crystallizing silicon includes a first, a second, and a third pattern part arranged in a longitudinal direction, each of the first, second, and third pattern parts including a plurality of unit blocks for transmitting and blocking a portion of light. At least two of the first, second and third pattern parts have a corresponding pattern to each other. Advantageously, scans using the aforementioned mask effectively remove a boundary on the silicon formed by the difference in the amount of laser beam irradiation received by the silicon, thereby improving electronic characteristics of the silicon.

Mask for crystallizing silicon, apparatus having the mask and method of crystallizing with the mask

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

A pixel in IPS LCDs according to the embodiments of the present invention is symmetrical with respect to a data line and a gate line. The data line longitudinally passes through the center of the pixel, and the gate line transversely passes through the center of the pixel. A pixel is confined to an area enclosed by two adjacent transverse common electrode lines and four longitudinal common electrodes which are branches of the common electrode lines. Among the four common electrodes, two are connected to one of the two common electrode lines, and the other two are connected to the other of the common electrode lines. Each pixel has two longitudinal common electrodes overlapped with the data line, four longitudinal pixel electrodes arranged between the common electrodes and two two-channel TFTs. Each pixel further has two storage electrodes overlapped with the pixel electrodes and electrically connected to the gate line. The storage electrode and the pixel electrode together form a storage capacitor.

In-plane switching liquid crystal display

A pixel in IPS LCDs according to the embodiments of the present invention is symmetrical with respect to a data line and a gate line. The data line longitudinally passes through the center of the pixel, and the gate line transversely passes through the center of the pixel. A pixel is confined to an area enclosed by two adjacent transverse common electrode lines and four longitudinal common electrodes which are branches of the common electrode lines. Among the four common electrodes, two are connected to one of the two common electrode lines, and the other two are connected to the other of the common electrode lines. Each pixel has two longitudinal common electrodes overlapped with the data line, four longitudinal pixel electrodes arranged between the common electrodes, and two two-channel TFTs. Each pixel further has two storage electrodes overlapped with the pixel electrodes and electrically connected to the gate line. The storage electrode and the pixel electrode together form a storage capacitor.

In-plane switching liquid crystal display and a manufacturing method

A panel for a liquid crystal display (LCD) includes a substrate having a plurality of pixel areas defined thereon. A first alignment layer is formed on the substrate, the first alignment layer providing a first pretilt angle for a liquid crystal material. A plurality of spaced apart second alignment regions is formed on the first alignment layer, the second alignment regions providing a second pretilt angle for the liquid crystal material, respective second alignment regions being separated by a portion of the first alignment layer such that a respective pixel area is covered by the first alignment region and partially covered by a second alignment region. Portions of the first alignment layer and the second alignment regions covering respective adjacent pixel areas have grooves formed therein which are substantially aligned along respective first and second directions. The first and second directions preferably are perpendicular. The pixel areas may be rectangular, and the portion of a respective pixel area covered by a second alignment region may include approximately one-half of the pixel area. The approximately one-half of the pixel area may include a rectangular portion of the pixel area. Preferably, the second pretilt angle is greater than the first pretilt angle.

Growing community of inventors

Gyeonggi-do, South Korea

Hyun-Dae Kim