Optical lens module and backlight unit
AssigneeSamsung Display Co., Ltd.
InventorsSeung Hwan CHUNG, Dong-Yeol Yeom, Joong Hyun Kim, Jin Sook Bang, Sang Woo Ha
Life of this patent
Estimating the term…
Abstract
A backlight unit which provides light to a liquid crystal display panel of a liquid crystal display. The backlight unit includes an optical lens module including an optical lens disposed above a point light source and configured to refract light output from the point light source, and a reflective polarization layer disposed directly on the optical lens and configured to separate polarization components of the light to transmit one polarization component and reflect another polarization component.
Claims21
An optical lens module, comprising:
- a point light source;
- an optical lens disposed above the point light source and configured to refract light output from the point light source;
- and
- a reflective polarization layer disposed on the optical lens and configured to transmit a first polarization component of the refracted light and reflect a second polarization component of the refracted light.
A direct-type backlight unit, comprising:
- a point light source mounted on a substrate;
- an optical lens disposed above the point light source and configured to refract light output from the point light source;
- a reflective polarization layer disposed on the optical lens and configured to transmit a first polarization component of the refracted light and to reflect a second polarization component of the refracted light;
- and
- a reflective layer disposed below the optical lens and configured to reflect the second polarization component.
Dependencies are inferred from the claim text.