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Infrared touch screen device

  • US 9,927,921 B2
  • Filed: 06/20/2016
  • Issued: 03/27/2018
  • Est. Priority Date: 04/25/2016
  • Status: Active Grant
First Claim
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1. A rectangular bezel constituted so that an infrared touch screen panel is to be installed,the infrared touch screen device comprising:

  • a transmission unit in which the corresponded frame is installed in the lengthwise direction to one horizontal bezel and one vertical bezel among the bezels and comprises a multiple numbers of light transmitting elements from which infrared rays are transmitted forward;

    a reception unit configured to;

    comprise a multiple numbers of light receiving elements installed at two bezels among the bezels in order to receive the infrared rays transmitted from the transmission unit a band pass filter which makes only the infrared rays of specific wavelength band among the infrared rays transmitted from the transmission unit to be received by the multiple numbers of light receiving elements,wherein the transmission unit is further configured to contain additionally a band pass filter which transmits only the infrared rays of specific band among the infrared rays transmitted from the multiple numbers of light transmitting elements,wherein the band pass filters of the transmission unit and reception unit is further configured to have uniform filter characteristic for the entire filter through the vacuum metalizing, and to be manufactured with the length as long as that of the installed bezel.

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