68.1: Invited Paper : Panel Structure Evolution of In‐cell Capacitive Touch Sensor
SID Symposium Digest of Technical Papers, 2015In this paper, various integration schemes for in‐cell capacitive touch panels will be reviewed. Continuous efforts have been made to eliminate the interference between display and touch sensor structure. A in‐cell LCD module with self‐capacitance touch sensor integrated will be presented.
Jun Ma +7 more
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24.3L: Late‐News Paper : In‐Cell Capacitance Touch‐Panel with Improved Sensitivity
SID Symposium Digest of Technical Papers, 2010Abstract We present a novel pixel circuit for an in‐cell capacitive type force‐sensitive touch panel. The TFT based capacitance sensor system comprises an active pixel sensor circuit with novel sensing capacitor structure and in‐pixel amplification to achieve a high sensitivity.
Chris Brown +3 more
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43.4: An In‐Cell Capacitive Touch‐Sensor Integrated in an LTPS WSVGA TFT‐LCD
SID Symposium Digest of Technical Papers, 2011Abstract We have developed an in‐cell capacitive touch‐sensor integrated in an LTPS 7″ WSVGA TFT‐LCD. The prototype having 256×150 sensors shows advantages such as smooth operation with no touch force, high position accuracy, multi‐touch (10 or more), thin and light LCD module, and thus is suitable for various applications.
Satoru Tomita +13 more
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69‐2: Overcoming an Abnormal Horizontal Dim Lines of an In‐cell Touch Display
SID Symposium Digest of Technical Papers, 2018We have conducted extensive investigations on abnormal horizontal line of touchscreen. Without changing a‐Si gate driving circuit, we obtained a novel method that could handle this problem. The capacitance of gate driving circuit is discharging during the touch period, in that case abnormal output of gate is produced which makes the horizontal dim line
Wei Xue +9 more
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49‐3: In‐Cell Active Touch Circuit Using a‐Si TFT for Large Size Panel
SID Symposium Digest of Technical Papers, 2017In this paper, we present an advanced in‐cell active touch circuit using a‐Si thin film transistors (TFTs) for large size panel. The circuit design is different from traditional mutual‐capacitance and self‐capacitance in‐cell touch panel which are so‐called passive touch circuit.
Wei-Jia Cheu +3 more
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A foldable OLED display with an in‐cell touch sensor having embedded metal‐mesh electrodes
Journal of the Society for Information Display, 2016AbstractA foldable organic light‐emitting diode display integrating a touch sensor is fabricated. The touch sensor has an in‐cell structure where metal‐mesh sensor electrodes are formed in a counter substrate. It is demonstrated that touch on the entire panel surface, including a bent portion, is detected and that the touch panel operates correctly ...
Kazunori Watanabe +9 more
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P‐168: Extremely Low‐Power Consumption Design for LCD In‐Cell Touch Panel
SID Symposium Digest of Technical PapersIn‐cell touch technology, as an important medium of human‐ machine interaction, is widely used in products such as mobile phones, tablets, notebooks, and so on. However, the addition of the vertical touch line (TP) in in‐cell touch pixels leads to a decrease in pixel aperture rate and uneven display of sub‐pixels with or without TP lines.
Yuanxiang Xie +5 more
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Design and Implement the Readout Circuit of an In-Cell High-Resolution Capacitive Touch Panel
ASME 2017 Conference on Information Storage and Processing Systems, 2017This paper proposes a high resolution capacitive touch panel readout circuit to sense the Variation by self-capacitance method. This AM display of in-cell structure includes an active architecture for improved resolution, that controlling the TFT (Thin-film transistor) to make the accuracy better.
Tsung-Yen Ku +6 more
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For the first time, we analyze the mechanism of electromagnetic interference (EMI) in an advanced in-cell touch (AIT) panel, which is a state-of-the-art in-cell touch screen panel technology. The AIT panel has stronger EMI generation at a specific frequency band (0.15 ~ 30 MHz) due to a load free driving (LFD) method. The LFD is adopted to overcome the
Hoonbae Kim, Byung-Wook Min
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Near‐field communication integration into in‐cell touch thin‐film‐transistor liquid‐crystal display
Journal of the Society for Information DisplayAbstractIn this paper, we demonstrated the front NFC card swipe and touch display in Touch and Display Driver Integration (TDDI) liquid crystal display (LCD) through the technologies shown later. A new NFC sampling and noise reduction algorithm was used to reduce the generation of the ghost position and touch failure.
Boshi Feng +6 more
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