Journal of Korea Multimedia Society (한국멀티미디어학회논문지)

Korea Multimedia Society (한국멀티미디어학회)
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An Implementation of High Speed Rendering to Process Touch Screen Multiple Inputs based on FPGA

FPGA 기반의 터치스크린 다중입력처리를 위한 고속 렌더링 구현

  • Yoon, Junhan (Dept. of Electronic Computer Engineering., Graduate School, Seo-Kyeong University) ;
  • Kim, Jin Heon (Dept. of Electronic Computer Engineering., Graduate School, Seo-Kyeong University)
  • Received : 2017.09.04
  • Accepted : 2017.11.01
  • Published : 2017.11.30
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Abstract

A large amount of processing time is required if the process of detecting the touch position on the touch screen and displaying it on the display panel is performed only by software. In this paper, we propose a method to output information touched on the screen using H/W method in order to improve the response speed delay. In the FPGA module designed for the HDMI signal output to the display module, the touch information is input to the serial data signal including touch coordinate information, point size, and color information. Then the module render the image using HDMI signal input to the module and the touch information. This method has a pipeline structure so it has effect of reducing the delay time that occurs in outputting the touch information compared with the conventional software processing method.

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References

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