Coretronic Corporation

Min-Yi Hsu

Ming-Dah Liu

Chao-Hung Weng

Shang-Wei Chen

Han-Wen Tsai

Fang-Hsuan Su

Ming-Feng Kuo

Wen-Hsin Lo

Chun-Yu Liao

Ching-Tang Yang

A light adjusting sheet includes a base and a first light adjusting structure layer. The base includes a first surface and a second surface opposite to the first surface. The first light adjusting structure layer is disposed on the first surface of the base, and the first light adjusting structure layer includes a plurality of light adjusting structures. Each light adjusting structure includes a major axis, a minor axis and a thickness, wherein the major axis of the light adjusting structure is in parallel with an extending direction. A ratio of a length of the minor axis to a length of the major axis is between 0.093 and 0.6, and the thickness is between 2 &#x3bc;m to 6 &#x3bc;m. A backlight module using the light adjusting sheet can achieve high brightness and large viewing angle.

Light adjusting sheet and backlight module using the same

A transfer printing apparatus includes a mold, a stamper, a pressing roller and a curing unit. The mold has a first surface with first and second concavities, the second concavity has first and second planes, the first plane is perpendicular to the first surface, and the second plane is inclined to the first surface. The stamper having a second surface is disposed in the first concavity. The first and second surfaces are coplanar, and the second surface has transfer printing microstructures. The first and second surfaces are suitable for coated an adhesive layer. The pressing roller presses a base film onto the adhesive layer, such that the adhesive layer is integrated with the base film. The curing unit cures the adhesive layer on the base film, such that a taper corresponding to the second concavity and optical microstructures corresponding to the transfer printing microstructures are formed on the adhesive layer.

Transfer printing apparatus and manufacturing method of light guiding film

A backlight module includes a light guide plate (LGP), a light source, and at least one prism sheet. The LGP includes a light emitting surface, a bottom surface, a light incident surface, and a plurality of first microstructures on the bottom surface. Each of the first microstructure is a recessed structure and includes a first surface and a second surface. An included angle between the first surface and the bottom surface ranges from 15 degrees to 27 degrees. An included angle between the second surface and the bottom surface ranges from 50 degrees to 90 degrees. The light source provides a light beam, and an included angle between a light emitting direction of the light beam emitted from the light emitting surface of the LGP and a normal direction of the light emitting surface is greater than 30 degrees. The prism sheet is disposed above the light emitting surface.

Light guide plate and backlight module using the same

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Hsin-Chu, Taiwan

Min-Yi Hsu