| Summary: | 碩士 === 萬能科技大學 === 工程科技研究所 === 98 === In recent years, flat panel display (LCD, OLED, PDP, FED, etc.) is very popular. The many companies and research center is planning to develop the next generation technology of display. Especially, color filter is the important components in LCD’s supply chain. They always use the spin and slit coating technology to approach this process currently. But the spin and slit coating always wasted much material(~98%), clean process is highly requirement to environment in the future. In addition, traditional method is difficult to cover resist on the large substrate smoothly.
Using ink-jet printing technology, we just print out ink to the required area of color filter. So compare to traditional technology, the material will save much a lot. It will be an excellent process, and friendly to environment.
The paper is used ink of photo spacer printing on the ITO substrate. By contact angle measurement, we study the interface effect of spacer material and substrate. According to the results, we improve the substrate surface character by different chemical treatment. The wall and area of color filter is necessary with difference surface character. We split many of condition to find the relationship of hydrophilic between the material and substrate and hydrophobic between wall and substrate. It is the best condition to print ink on ITO substrate. And also we obtain important parameter for ink-jet equipment by variation of frequency, voltage and ink head size, respectively.
In conclusion, the new display technology by inkjet printing system is feasible in the future. Many of company have pay much attention to develop ink-jet process. We believe the mass production equipment will be appeared on next generation LCD fab.
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