TFI liquid-crystal module lighting device and parameter arranging method

Abstract

The invention relates to a TFT LCD lighting device that is made up of host computer, slave computer and software. The host computer selects and downloads image and integrates module driving parameters; the slave computer takes charge of driving bottom, and receives the parameter and image data from host computer. The parameters of display would be adjusted in host computer and controls the display effect of module. After the parameter being adjusted, it would be downloaded into initialized code. It has the advantages of easy, rapid and high efficiency.

Description

technical field [0001] The invention relates to a TFT liquid crystal module lighting device and a parameter setting method, which are particularly suitable for lighting tests of complicated TFT modules, and belong to the technical field of TFT color module testing. Background technique [0002] During the trial production and production process of the liquid crystal module, it needs to go through many testing processes before it can finally leave the factory. One of the most important and basic tests is the lighting test. With the development of technology, the liquid crystal module has developed from black and white STN, color CSTN, to the current TFT color module. With the improvement of module level, the difficulty of lighting is also increasing, especially in the adjustment of lighting effect. It is more difficult, because many parameters need to be involved, and these parameters are in check with each other. [0003] In addition, because the liquid crystal module invo...

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Problems solved by technology

[0004] At present, some major module manufacturers are mainly based on the 8-bit single-chip microcomputer system in the test. When performing the lighting test of the liquid crystal module, there is no special way to set the parameters that affect the display effect. Generally, after setting a set of parameters, edit the If you have a good program, burn it into the MCU to see how the display effect is. If it is not good, change the parameters, then compile the program, and burn it into the MCU. Repeat this many times. As the complexity of the module increases, the display effect will be affected. The more parameters there are, the more times of this kind of back and forth during the lighting test, so the efficiency is lower during the lighting test, and it takes a long time to get a satisfactory display effect.

On the other hand, since the program runs from the beginning every time the parameters are modified, the effect of the previous display screen can only be based on the operator's memory. If the newly changed parameters have little effect on the displayed screen, the operator will not be able to judge the new Whether the changed parameters are changed to the good side or to the bad side, because the operators often cannot remember the small changes in the display picture quality

[0005] For simple modules, such as black-and-white CSTN and color CSTN, since there are few parameters that affect the display effect, this debugging method can achieve satisfactory display effect in a short time, but for more complex color TFT modules, due to the influence There are many parameters for the display effect. Using this method to light up the module often results in unsatisfactory results.

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