Chunghwa Picture Tubes, Ltd.

Tatung University

Pin-Hung Chou

Kuang-Lang Chen

Fu-Chiung Cheng

Yue-Li Chao

Po-Kun Hsieh

Yao-Hung Lai

Yuan-Jing Chang

Hsin-Chi Lai

A touch panel circuit and an operation method thereof are disclosed herein. The touch panel circuit includes first scan lines, second scan lines, and a first scan sensing module. The first scan sensing module includes first scan-sensing units corresponding to the first scan lines, respectively. Each first scan sensing unit includes a first logic gate and a second logic gate. The first logic gate includes a first input terminal, a first output terminal, and a first control terminal. The second logic gate includes a second input terminal, a second output terminal, and a second control terminal. The first logic gate and second logic gate enable the first input terminal to connect to the first output terminal and one of the first scan lines, or enable the second input terminal and one of the first scan lines to connect to the second output terminal.

Touch panel circuit and operation method thereof

An LCD driving apparatus and an LCD driving method are provided in the application. The LCD driving apparatus includes a difference value circuit which determines whether to enable an overdriving circuit and a memory controller according to a gray level variation between two adjacent frames. When the gray level variation between two adjacent frames is less than a predetermined threshold, the overdriving circuit and the memory controller are disabled so as to reduce power consumption.

Liquid crystal display (LCD) driving apparatus and method

A device for dissipating a heat from addressing integrated circuits (addressing ICs) of a plasma display panel that uses a back plate which has a greater surface area, to dissipate the heat from the addressing integrated circuits directly. For embodiment of the device thereof, it provides a heat-conducting sheet attached on the addressing ICs to conduct the heat from the addressing ICs to the back plate rapidly, therefore increase the efficiency of the dissipation without add the volume of the plasma display panel.

Device for decreasing the temperature from address IC of plasma display panel and the method thereof

An electronic apparatus having a structure for protecting a flexible printed circuit (FPC) and a chip thereon is described, including a metal backplate, a first circuit and a second circuit respectively on the front side and the back side of the backplate, a metal frame plate at the periphery of the backplate, at least one FPC with at least one chip thereon, a metal screen plate, and at least one insulating elastic ring disposed around the FPC. The FPC has a first end connected to the first circuit and a second end connected to the second circuit over the frame plate, and the screen plate is disposed on the frame plate screening the FPC and the chip. The inner periphery of the insulating elastic ring closely contacts with the chip, and the outer periphery of the ring closely contacts with the frame plate and the screen plate.

Electronic apparatus having structure for protecting flexible printed circuit and chip thereon

A structure and method for arranging poles in a plasma display panel comprises a plurality of spaced apart parallel X poles and Y poles on an inner surface of plasma display panel wherein each X pole is adjacent to a Y pole. Power contacts are formed on either ends of X and Y poles. As such, once an open circuit occurred in one of poles in the manufacturing process, power contact at one end associated with the malfunctioned pole may be connected to the power contact of the pole at the other end. As such, the malfunctioned pole may be powered continuously so as to discharge. With this, the quality of plasma display panel is not significantly adversely affected by the defect, thus increasing yield and resulting in an increase in the manufacturing cost.

Growing community of inventors

Taipei, Taiwan

Pin-Hung Chou