Function verification method and system for liquid crystal display drive chip

A technology for driving chips and liquid crystal displays, used in static indicators, instruments, measuring devices, etc., can solve the problems of time-consuming, incomplete verification of function points, and high verification costs, and achieve convenient operation, easy implementation, and rapid verification. Effect

Inactive Publication Date: 2009-02-18
BYD SEMICON CO LTD
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Problems solved by technology

[0003] The purpose of the embodiment of the present invention is to provide a method for verifying the function of a liquid crystal display driver chip, aiming at solving the problem of verifying the function of a liquid crystal display driver chip only through the simulated output waveform, which takes a lot of time, the verification of function points is not comprehensive, and the verification cost is relatively high. high problem

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  • Function verification method and system for liquid crystal display drive chip
  • Function verification method and system for liquid crystal display drive chip
  • Function verification method and system for liquid crystal display drive chip

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Embodiment Construction

[0018] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] In the embodiment of the present invention, the liquid crystal display driver chip is modeled and simulated, the simulation excitation and image data are modulated inside the model, and the driving voltage values ​​on the output rows and columns are converted into data in the corresponding format, and the data is read, simulated by software The display screen displays the data as a picture, which does not need to rely too much on the observed waveform for functional verification. The verification is fast, comprehensive, easy to implement, low in implementation cost, and easy to operate.

[0...

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Abstract

The invention is suitable for display device field and provides a function verification method and system of LCD drive chip. The method comprises following steps: inputting simulation excitation and image data into LCD drive chip module, modulating and outputting drive voltage value on row and column; converting the drive voltage value on row and column into data of corresponding format; reading the converted data and simulatively outputting the corresponding display picture. Adopting the invention can perform function verification without excessively dependent on observing the wave form, the verification is fast and overall and is easy to implement, the cost is low and the operation is convenient.

Description

technical field [0001] The invention belongs to the field of display devices, in particular to a function verification method and system for a liquid crystal display driver chip. Background technique [0002] At present, in the design of liquid crystal display (Liquid Crystal Display, LCD), organic light emitting display (Organic Light Emitting Display, OLED), thin film field effect transistor (Thin FilmTransistor, TFT) or other color flat display drivers, it is necessary to A driver chip, such as a super twisted nematic (Super Twisted Nematic, STN) driver chip or a TFT driver chip, is verified for its function. When verifying the functions of STN and TFT driver chips, simulation verification methods are generally used, such as figure 1 , 2 As shown, after using the simulation software to simulate the function of the driver chip model, the function of the LCD driver chip is verified by observing the output waveform. Due to the many functions of the LCD driver chip, it wil...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00G09G3/36G01R31/00
Inventor 孔庆海李奇峰杨云冯卫
Owner BYD SEMICON CO LTD
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