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Drive circuit

A driving circuit and source driving technology, applied in instruments, static indicators, etc., can solve the problems of increased operating current and short life, and achieve the effect of reducing power consumption

Inactive Publication Date: 2013-01-16
ILI TECHNOLOGY CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These factors will lead to an increase in the operating current, resulting in greater power consumption, heat generation and electromagnetic interference (EMI) of the source driver circuit 100, and a shorter lifespan.

Method used

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Embodiment Construction

[0023] Some terms are used in this specification and the above-mentioned scope of patent application to refer to specific components, but those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and the above-mentioned The scope of the patent application does not use the difference in the name as the way to distinguish the components, but the difference in the function of the components as the criterion for distinguishing. The "comprising" mentioned in the entire specification and the above claims is An open-ended term, it should be interpreted as "including but not limited to". In addition, the term "coupled" here includes any direct and indirect electrical connection means. Therefore, if the article describes a first device Coupling to a second device means that the first device can be directly electrically connected to the second device, or indirectly electrically connected to the second...

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Abstract

The invention relates to a drive circuit which comprises a first data logic unit, a bolt locking unit and a judgment unit. The first data logic unit is used for receiving at least a digital data signal and a first control signal and selectively inverting the digital data signal so as to generate a first digital output data signal according to the first control signal; the bolt locking unit is used for receiving the first digital output data signal and a second control signal and selectively setting that whether the output second digital output data signal is inverted with the first digital output data signal according to the second control signal; and the judgment unit is used for receiving the digital data signal, judging the inverting frequency of the digital data signal relative to theanterior digital data signal and outputting the first control signal and the second control signal according to the inverting frequency.

Description

technical field [0001] The present invention relates to a driving circuit, especially a source driving circuit (source driver) applied in a liquid crystal display panel. The source driving circuit can effectively reduce power consumption, heat generation and electromagnetic interference (electromagnetic interference, EMI). Background technique [0002] figure 1 What is shown is a simplified block diagram of a source driving circuit 100 used in a liquid crystal display panel in the prior art. Such as figure 1 As shown, the source driving circuit 100 includes: a data logic unit 102 and a latch unit 104 . In the known technology, since the RGB data signal is continuously transmitted from the data logic unit 102 to the latch unit 104, when the number of channels (channel) required by the source driver circuit is increasing, from the data logic unit 102 to the latch unit The longer the data signal transmission path of the unit 104 is, the heavier the load will be; in addition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
Inventor 叶松铫吴文琦
Owner ILI TECHNOLOGY CORPORATION