An object is to provide a semiconductor device of which a manufacturing process is not complicated and by which cost can be suppressed, by forming a thin film transistor using an oxide semiconductor film typified by zinc oxide, and a manufacturing method thereof. For the semiconductor device, a gate electrode is formed over a substrate; a gate insulating film is formed covering the gate electrode; an oxide semiconductor film is formed over the gate insulating film; and a first conductive film and a second conductive film are formed over the oxide semiconductor film. The oxide semiconductor film has at least a crystallized region in a channel region.

Semiconductor device, and manufacturing method thereof

The present invention provides a heterocyclic compound and an organic light-emitting device including the heterocyclic compound. The organic light-emitting devices using the heterocyclic compounds have high-efficiency, low driving voltage, high luminance and long lifespan.

Organic light-emitting device

An object of the present invention is to decrease the resistance of a power supply line, to suppress a voltage drop in the power supply line, and to prevent defective display. A connection terminal portion includes a plurality of connection terminals. The plurality of connection terminals is provided with a plurality of connection pads which is part of the connection terminal. The plurality of connection pads includes a first connection pad and a second connection pad having a line width different from that of the first connection pad. Pitches between the plurality of connection pads are equal to each other.

Semiconductor device and display device

Disclosed herein are liquid-crystal display (LCD) touch screens that integrate the touch sensing elements with the display circuitry. The integration may take a variety of forms. Touch sensing elements can be completely implemented within the LCD stackup but outside the not between the color filter plate and the array plate. Alternatively, some touch sensing elements can be between the color filter and array plates with other touch sensing elements not between the plates. In another alternative, all touch sensing elements can be between the color filter and array plates. The latter alternative can include both conventional and in-plane-switching (IPS) LCDs. In some forms, one or more display structures can also have a touch sensing function. Techniques for manufacturing and operating such displays, as well as various devices embodying such displays are also disclosed.

Touch screen liquid crystal display

To provide a semiconductor device and a display device which can be manufactured through a simplified process and the manufacturing technique. Another object is to provide a technique by which a pattern of wirings or the like which is partially constitutes a semiconductor device or a display device can be formed with a desired shape with controllability.

Semiconductor device, electronic device, and method of manufacturing semiconductor device

— A liquid-crystal panel integrated with a gate driver and a source driver by using amorphous In—Ga—Zn-oxide TFTs was designed, prototyped, and evaluated. By using the process of bottom-gate bottom-contact (BGBC) TFTs, amorphous In—Ga—Zn-oxide TFTs with superior characteristics were provided. Further, for the first time in the world, a 4-in. QVGA liquid-crystal panel integrated with a gate driver and a source driver was developed by using BGBC TFTs formed from an oxide semiconductor. By evaluating the liquid-crystal panel, its functionality was successfully demonstrate. Based on the findings, it is believed that the novel BGBC amorphous In—Ga—Zn-oxide TFT will be a promising candidate for future large-screen backplanes having high definition.

Driver‐circuits‐integrated LCDs based on novel amorphous In‐Ga‐Zn‐oxide TFT

PROBLEM TO BE SOLVED: To provide a digital system active matrix type display device having a driving circuit in which the occupancy area on a panel can be reduced. SOLUTION: Digital image signals inputted into the device are immediately converted into analog signals through a D/A converting circuit 103. Sampling of the image signals are conducted by using a sampling circuit 104 that is equivalent to a conventional analog system. Thereby, it is possible to deal with the digital image signals without using a latch circuit which is normally required to process digital image signals and which has occupied a large area in a driving circuit. COPYRIGHT: (C)2002,JPO

Driving circuit for display device and its driving method

A semiconductor display device correcting system includes a control circuit for carrying out gamma correction of a picture signal supplied from the outside and a nonvolatile memory for storing data for gamma correction. The data for gamma correction is prepared for each semiconductor display device, so that excellent gradation display can be made.

Semiconductor display device correcting system and correcting method, electronics device having active matrix display screen

A plurality of partial image display portions are provided. Each of the partial image display portions is formed by at least one signal line driver circuits and at least one of scanning line driver circuits. Each partial image display portion displays a part of one frame of image. The whole one frame of image is displayed by all of the partial image display portions.

Active matrix display and image forming system based on multiple partial image displays

We achieved low-voltage driving of a blue-phase liquid crystal display by employing liquid crystal with high dielectric anisotropy and a chiral material with high helical twisting power. A prototype of a 3.4-inch polymer-stabilized blue-phase display was made, which includes a highly reliable crystalline oxide semiconductor and operates favorably.

Jun Koyama

Papers

Driver‐circuits‐integrated LCDs based on novel amorphous In‐Ga‐Zn‐oxide TFT

Driving circuit for display device and its driving method

Semiconductor display device correcting system and correcting method, electronics device having active matrix display screen

Active matrix display and image forming system based on multiple partial image displays

4.2: Polymer‐Stabilized Blue‐Phase Material Driven at Low Voltage