Industrial Technology Research Institute

Ben-Sheng Lin

Yu-Nan Pao

Po-Hung Yao

Yi-Ting Sun

Heng-Chun Huang

Hsiu-Chen Hsu

I-Kai Pan

Jian-Shian Lin

Ming-Fong Chen

The present invention discloses an optical element, having a first optical surface and a second optical surface for receiving an incident light, the optical element comprising: at least a transparent diffusion unit, for scattering the incident light, each being placed on the first optical surface; and at least a transparent collimation unit, for collimating the incident light, each being place on the first optical surface abutted and adjacent to the diffusion unit in an alternative manner.

Optical element and the light source apparatus utilizing the same

A light device with integration sheet is disclosed, which comprises: a light source; and at least a sheet, each being disposed at the light emitting end of the light source and comprising a plurality of light diffusion zones; wherein each light diffusion zone has a plural arrays of microstructures arranged on the surface thereof, and each array of microstructures is capable of changing the diopter of the corresponding light diffusion zone. By controlling the distribution of the plural arrays of microstructures, the Gaussian distribution of the light source can be improved while collimating the scattered light beams to the intended illuminating area of the lighting device and diffusing the light beams emitting from the center of the light source to the same so that not only the luminous efficacy of the lighting device is enhanced, but also the uniformity of the illuminance of the lighting device is improved.

Lighting device with integration sheet

A direct backlight module is disclosed, which comprises: a frame; at least a light source, being arranged in the frame; a diffuser, being disposed over the frame; and at least an optical film, being disposed over the diffuser, comprising a substrate having a top surface and a bottom surface; wherein a diffusion unit and a collimation unit are formed on the top surface while using the diffusion unit for diffusing light incident to the bottom surface and the collimation unit for collimating light incident to the bottom surface. The direct backlight module of the invention is capable of enhancing luminous efficiency, and further, it has a comparatively simple structure so that the manufacturing cost of the optical film can be reduced.

Direct backlight module

The present invention discloses an optical film with array of microstructures, having a first optical surface and a second optical surface for receiving an incident light. The optical film comprises at least a transparent microstructure formed on the first optical surface, wherein the microstructure further comprises: a first side for scattering the incident light; and a second side for collimating the incident light.

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Hsinchu, Taiwan

Ben-Sheng Lin