Chi Mei Optoelectronics Corporation

Tien-Jen Lin

Biing-Seng Wu

Hsin-Hung Chen

Chao-Wen Wu

Chin-Lung Ting

Yuan-Liang Wu

Hsin-Ta Lee

A liquid crystal display module and its scanning circuit board therein. There are a first scanning circuit and a second scanning circuit located at both ends of each of the scanning lines in the LCD panel. While scanning, both the first scanning circuit and the second scanning circuit drive the same scanning line simultaneously, so as to equivalently reduce the delay effect caused by the RC time constant. The first scan driving circuit and the second scan driving circuit could be placed on different scanning circuit boards with the same layout. The scanning circuit board has two connectors at the both ends and a scanning interface at a side. The scanning circuit board could be used at both sides of the LCD panel by the rotation of 180&#xb0;.

Liquid crystal display module and scanning circuit board thereof

A display apparatus includes a first scan line; a first data line perpendicular to the first scan line; a first pixel, a second pixel, and a third pixel which are adjacent and coupled to the same data line respectively; and a first switching device, a second switching device, and a third switching device set in the first, second, and third pixels respectively. The data signals can be selectively input into the corresponding pixels from the first data line by enabling/disabling the corresponding scan lines.

Display apparatus with a driving circuit in which every three adjacent pixels are coupled to the same data line

Liquid crystal display module and its scanning circuit board

A LCD module and a scanning method of the LCD panel and its scanning circuit board. The main object is to configure a first scan driver circuit and a second scan driver circuit at both ends of each of the scanning line in the LCD panel respectively. During scanning, both the first scan driver circuit and the second scan driver circuit are used for carrying out the scanning procedure on every scanning line, therefore the delay effect caused by RC time constant is equivalently reduced. The first scan driver circuit and the second scan driver circuit allocated to the scanning circuit boards have the same circuit layout.

Liquid crystal display module and the scanning circuit board

A compensation circuit is provided to remove the flicker occurring on the panel of a liquid crystal display by adjusting the data signal applied to each pixel. The compensation circuit mainly includes: a memory device, a buffer, a digital/analog converter and a data signal line driving circuit. The memory device stores a plurality of digital compensation data wherein each is used as the compensation signal for a pixel of the LCD. The buffer is connected to the memory device for temporarily storing the compensation data coming from the memory device in response to a first clock. The digital/analog converter is connected to the buffer for converting the digital data coming from the buffer into an analog data in response to a second clock. The data signal line driving circuit consists of n (the number of pixels on each scan line) units each is composed of a sample/hold circuit unit and an output circuit unit. Each sample/hold circuit unit receives an analog data coming from the digital/analog converter or a ground potential, samples the received data and holds the sampled result. Each output circuit unit receives the output data coming from the corresponding sample/hold circuit unit and an external signal, outputs the summed result of the two received data to a corresponding pixel. When flicker compensation is to be performed, each sample/hold circuit unit receives an analog compensation data coming from the digital/analog converter. On the other hand, when flicker compensation is not to be performed, each sample/hold circuit unit receives a ground potential.

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Hsinchu, Taiwan

Tien-Jen Lin