Flat panel display embedding optical imaging sensor
AssigneeLG Display Co., Ltd.
InventorsSeungman Ryu, Hyungseok Bang, Ara Yoon
Life of this patent
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Abstract
Discussed is a flat panel display device embedding an optical imaging sensor such as a fingerprint image sensor. The device includes: a display panel including a display area and a non-display area, and having a top surface; and a directional optical unit attached to the top surface of the display panel, the directional optical unit having a length along a length axis of the display panel, a width along a width axis of the display panel and a thickness along a thickness axis of the display panel, wherein the directional optical unit provides a sensing light to the display area, and wherein the sensing light is collimated and directionized along a predetermined direction of the directional optical unit.
Claims20
A flat panel display device embedding an image sensor, the device comprising:
- a display panel including a display area and a non-display area, and having a top surface;
- and
- a directional optical unit attached to the top surface of the display panel, the directional optical unit having a length along a length axis of the display panel, a width along a width axis of the display panel and a thickness along a thickness axis of the display panel,
- wherein the directional optical unit provides a propagating light in the display area,
- wherein the propagating light is collimated and directionized along a predetermined direction of the directional optical unit, and
- wherein some of the propagating light is converted into a radiating light using a light radiating film.
A flat panel display device embedding an image sensor, the device comprising:
- a display panel including a display area and a non-display area;
- and
- a directional optical unit attached on a surface of the display panel, the directional optical unit having a light exiting part and a light entering part that are adjacent to each other,
- wherein the directional optical unit internally reflects a propagating light, converts some of the propagating light into a radiating light using a light radiating film, converts the radiating light into a sensing light, and provides the sensing light to the display area of the display panel from the light exiting part.
Dependencies are inferred from the claim text.