Driving circuit and operation method thereof

A driving circuit and motion technology, applied in the direction of instruments, static indicators, etc., can solve the problems of large area, inability to lift, and the limitation of the channel density of source drive circuit 1, so as to reduce the area, increase the channel density, and increase the degree of freedom of arrangement Effect

Inactive Publication Date: 2012-05-16
RAYDIUM SEMICON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, it is worth noting that, since the CMOS digital-to-analog converter module C14 in the conventional source drive circuit 1 uses a complementary metal-oxide-semiconductor (Complementary Metal-Oxide-Semiconductor, CMOS) field-effect transistor, its The area is much larger than that of the digital-to-analog converter module composed of N-type metal-oxide-semiconductor field-effect transistor (NMOSFET) or P-type metal-oxide-semiconductor field-effect transistor (PMOSFET). Channel density is limited and cannot be increased

Method used

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  • Driving circuit and operation method thereof
  • Driving circuit and operation method thereof

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Embodiment Construction

[0049]A first specific embodiment according to the present invention is a driving circuit. In this embodiment, the driving circuit may be a source driving circuit applied to a TFT-LCD display, but not limited thereto.

[0050] Please refer to figure 2 , figure 2 is a functional block diagram illustrating the driving circuit in the first operation mode in this embodiment. like figure 2 As shown, the driving circuit 3 is coupled to the liquid crystal display panel 4 . The driving circuit 3 includes a selection module 30, an N-type digital-to-analog converter (DAC) module 31, a P-type digital-to-analog converter (DAC) module 32, a switching module 33, a first amplifier 34, a second amplifier 35, a first processing module 36. The second processing module 37, the first data line L1 and the second data line L2.

[0051] Wherein, the selection module 30 is coupled to the first data line L1 and the second data line L2; the N-type DAC module 31 and the P-type DAC module 32 are ...

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Abstract

The invention discloses a driving circuit and an operation method thereof. The drive circuit comprises at least one first channel, at least one second channel, a selection module and at least one switching module. The selection module is coupled with input terminals of the first channel and the second channel; and the at least one switching module is coupled with output terminals of the at least one first channel and the at least one second channel. The selection module and the switching module carry out corresponded switching motions according to a control signal, so that the driving circuit is selectively in a first operation mode or a second operation mode.

Description

technical field [0001] The present invention relates to a driving circuit, in particular to a driving circuit applied to a liquid crystal display device and an operation method thereof. Background technique [0002] In recent years, due to continuous innovation and advancement of display technology, various types of display devices, such as liquid crystal displays and plasma displays, have appeared on the market. Since the volume of LCD monitors is much smaller than that of traditional CRT monitors, for modern people with small living spaces, it is indeed more convenient to use LCD monitors that occupy less desktop space. [0003] Generally speaking, a driving device for a thin film transistor liquid crystal (TFT-LCD) display mainly includes two parts: a source driving circuit and a gate driving circuit. For thin film transistor liquid crystal displays emphasizing high quality, high resolution and low power consumption, the source driver circuit plays a very important role....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/36
Inventor 左克扬鲁齐媛赵晋杰罗友龙
Owner RAYDIUM SEMICON
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