Back to results
US 11,906,442 B2Granted
Foreign material inspection system of display unit
AssigneeLG Chem, Ltd.
InventorsBeom Seok Lee, Chan Soo Kim, Eung Jin Jang, Sung Hyun Baek, Yu Jin Lim
Life of this patent
Estimating the term…
Abstract
An exemplary embodiment of the present invention provides a foreign substance inspection system for a display unit, including: a lighting unit configured to provide incident light to a display unit having an organic light emitting display panel; and a foreign substance detecting unit configured to receive incident light that is reflected by the display unit and detect whether a foreign substance is introduced into the display unit.
Claims4
A foreign substance inspection system comprising:
- a light source configured to provide incident light to a display, the display having an organic light emitting display panel, a quarter-wave plate disposed on the organic light emitting display panel, and a polarizing plate disposed on the quarter-wave plate;
- and
- a foreign substance detector configured to receive incident light that is reflected by the display, and detect whether a foreign substance is introduced into the display,
- wherein the foreign substance detector determines that a foreign substance is introduced into the display when the foreign substance detector determines that the reflected light is provided.
1 more element
Dependencies are inferred from the claim text.