Patent ID: 8569758

Claim:
A touching-type electronic paper, comprising: a thin film transistor (TFT) substrate and a transparent electrode substrate which are disposed facing each other as a cell, wherein the transparent electrode substrate comprises a common electrode which is transparent, microcapsule electronic ink and light guiding poles as light transmitting passages, all of which are formed on a first transparent substrate, wherein the common electrode is formed on the first transparent substrate, the light guiding poles made of a transparent material are formed on the common electrode, and the other part of the common electrode, where no light guiding poles are formed, is coated with the microcapsule electronic ink; the TFT substrate comprises: displaying electrodes, first TFTs for driving the displaying electrodes respectively, second TFTs as light sensor units for detecting lights transmitting through the light guiding poles and for producing level signals respectively, and third TFTs electrically connected with the second TFTs in which the third TFTs comprise signal reading units for reading the level signals and sending the level signals to a back-end processing system, wherein all of which are formed on a second substrate; and the light guiding poles are arranged between the microcapsules of the electronic ink, and each light guiding pole comprises one end formed on and contacting the transparent common electrode for receiving external light and the other end opposite to but not touching the corresponding one of the second TFTs, so as to transmit the external light to the corresponding second TFT through the light guiding pole, wherein the height of a light guiding poles is 50% of the distance between the TFT substrate and the transparent electrode substrate.