38.4: Invited Paper: In-Cell Embedded Touch Screen Technology for Large Size LCD Applications

Design guidelines for large size liquid crystal capacitive sensor panels have been studied. Based on a model taking both column spacer and glass deformation into account, reductions of column spacer density or elastic constant are found to be effective for improving cell gap sensitivity to touch for...

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Bibliographic Details
Published in:SID International Symposium Digest of technical papers 2010-05, Vol.41 (1), p.544-547
Main Authors: Takahashi, Seiki, Cho, Duc Han, Moon, Hoi-Sik, Kim, Nam Deog
Format: Article
Language:English
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Summary:Design guidelines for large size liquid crystal capacitive sensor panels have been studied. Based on a model taking both column spacer and glass deformation into account, reductions of column spacer density or elastic constant are found to be effective for improving cell gap sensitivity to touch force. The structure of a‐Si IR sensor incorporating IR light source and IR passing filter has been proposed, and the issues of optical sensor method are confirmed to be solved by simulation and experiment results.
ISSN:0097-966X
2168-0159
DOI:10.1889/1.3500520