Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ki-Duk Jang0
Young-Ki Kim0
Yong-Wook Hwao0
Chang-Youn Hwang0
Shin-Chul Kang0
Date of Patent
January 12, 2010
Patent Application Number
12022727
Date Filed
January 30, 2008
Patent Primary Examiner
Patent abstract
An optical waveguide sheet that has an auxiliary layer for preventing light transmitted through the waveguide sheet from leaking or being lost and a manufacturing method thereof. The waveguide sheet transmits light from a light emitting element thereinto, and has a reflecting pattern for reflecting light forward. At least one auxiliary layer for providing a total reflection condition for preventing the light from leaking or being lost when the light is transmitted into the waveguide sheet is coated on the waveguide sheet.
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