Digital time‐modulation pixel memory circuit in LTPS technology |
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| Authors: | Szu‐Han Chen Ming‐Dou Ker Tzu‐Ming Wang |
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| Affiliation: | 1. Nanoelectronics and Gigascale Systems Laboratory, Institute of Electronics, National Chiao‐Tung University, Rm. 307, Eng. Bld. 4, 1001 Ta‐Hsueh Rd., Hsinchu, 300 Taiwan.;2. Nanoelectronics and Gigascale Systems Laboratory, Institute of Electronics, National Chiao‐Tung University, Hsinchu, Taiwan, and the Department of Engineering, I‐Shou University, Kaohsuing, Taiwan. |
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| Abstract: | Abstract— A digital time‐modulation pixel memory circuit on glass substrate has been designed and verified for a 3‐μm low‐temperature polysilicon (LTPS) technology. From the experimental results, the proposed circuit can generate 4‐bit digital codes and the corresponding inversion data with a time‐modulation technique. While the liquid‐crystal‐display (LCD) panel operates in the still mode, which means the same image is displayed on the panel, a data driver for an LCD panel is not required to provide the image data of the frame by the proposed pixel memory circuit. This pixel memory circuit can store the frame data and generate its corresponding inversion data to refresh a static image without activating the data driver circuit. Therefore, the power consumption of a data driver can be reduced in the LCD panel. |
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| Keywords: | Memory‐in‐pixel (MIP) low‐temperature polysilicon (LTPS) system‐on‐panel (SOP) time modulation |
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