Method for implementing liquid crystal display drive circuit and source pole drive circuit module

A driving circuit and liquid crystal display technology, applied to static indicators, instruments, etc., can solve problems such as the difficulty of area design, and achieve the effects of low power consumption, small size, and improved performance
CN101414452BActive Publication Date: 2013-11-06SUZHOU PIXCIR MICROELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUZHOU PIXCIR MICROELECTRONICS
Publication Date
2013-11-06

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Abstract

The invention discloses an implementation method of an LCD drive circuit and a source electrode drive circuit module. The source electrode drive circuit module is characterized by consisting of a precharge voltage generation circuit (100), a gamma voltage division circuit (200), two to four groups of M-level gray scale generation circuits (300) and an equilibrium gamma load drive circuit (400), wherein, output of the precharge voltage generation circuit (100) is a precharge voltage Vper which is a positive precharge voltage Vpper or a negative precharge voltage Vnper, the output of the gamma voltage division circuit (200) is N gray scale reference voltages, namely, V1, V2 to VN, and the N gray scale reference voltages V1, V2 to VN are respectively connected with the two to four groups of M-level gray scale generation circuits (300) the output of which is two to four groups of gray scale voltages, the gray scale voltages and display data (G_DATA) are jointly connected to an input terminal of the equilibrium gamma load drive circuit (400), and the gamma drive output voltage and the precharge voltage Vper are taken as the source electrode drive output.
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Description

technical field

[0001] The present invention relates to a method for realizing a liquid crystal drive module circuit and its drive circuit, in particular to a method for realizing a liquid crystal display drive circuit for a source drive chip in a small and medium-sized digital panel or a source drive part in a single-chip integrated drive chip. Source drive circuit module. Background technique

[0002] In the LCD driver chip, the function of the source driver is to convert the externally input digital signal into a gray-scale voltage analog signal with current driving capability and drive it to charge the liquid crystal dot matrix on the LCD panel, so that the voltage at both ends of the liquid crystal display capacitor To achieve the corresponding gray voltage value, to achieve the purpose of displaying color images. Its display quality is closely related to the drive capability of the drive circuit and the accuracy of the grayscale voltage. Now, with the increasing powe...

Claims

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