Benq Materials Corporation

Meng-Chia Cheng

Chen-Kuan Kuo

Cyun-Tai Hong

Chuen-Nan Shen

Chia-Feng Lin

Meng-Jie Lin

Fung-Hsu Wu

Lung-Hai Wu

Meng-Chieh Chou

Shih-Wei Chao

Jian-Hung Wu

Yi-Lung Yang

Ren-Hung Huang

Chung-Hung Chien

Po-Tung Lai

Ya-Chun Chang

Chien-Yi Kao

An optical film includes a first diffraction layer, a second diffraction layer, and a cover layer. The first diffraction layer includes a plurality of first diffraction gratings arranged in a direction on a surface thereof. The second diffraction layer is filled in the gap of the first diffraction gratings of the first diffraction layer and forms a plurality of second diffraction gratings arranged in a direction on the first diffraction layer, wherein the directions of the first diffraction gratings and the second diffraction gratings are parallel to each other. The cover layer fills and planarizes the second diffraction gratings of the second diffraction layer. The optical film can reduce the light leakage defect of a conventional liquid crystal display in a wide viewing angle and make the liquid crystal display have a uniform dark-state image and color image quality.

Optical film

An optical film includes a first diffraction layer, a second diffraction layer, and a cover layer. The first diffraction layer includes a plurality of first diffraction gratings arranged in the same direction on a surface thereof. The second diffraction layer includes a plurality of second diffraction gratings arranged in the same direction gap-filled the first diffraction gratings of the first diffraction layer, wherein the directions of the first diffraction gratings and the second diffraction gratings are parallel to each other. The cover layer is formed on the second diffraction gratings of the second diffraction layer. At least one of the first diffraction layer, the second diffraction layer and the cover layer contains dyes, and therefore, the optical film can reduce the light leakage defect of a conventional liquid crystal display in a large viewing angles and make the liquid crystal display have uniform dark-state images and colorful images.

Optical film for liquid crystal display

The invention provides an optical film for improving image quality of a liquid crystal display comprising: a light directing structure layer, a first filling layer, a plurality of first diffraction gratings and a second filling layer. The light directing structure layer comprises a plurality of light directing micro structures, wherein the ratio of height to width of each light directing micro structure is in the range of 1.5 to 6. The first filling layer is disposed on the light directing structure layer, and the refractive index of the first filling layer and the light directing structure layer are different. The first diffraction gratings along with a first direction are formed on the first filling layer. The second filling layer is disposed on the first diffraction gratings and the refractive index of the second filling layer and the first diffraction gratings are different.

Disclosed herein is a quantum rod backlight module for a liquid crystal display. The quantum rod backlight module includes a quantum rod layer disposing at one side of a backlight source and comprising a plurality of quantum rods, wherein the major axes of the plurality of quantum rods are aligned along a direction parallel to a surface of the quantum rod layer; a first micro-prism layer including a plurality of first parallel strip-shape prisms, and a second micro-prism layer including a plurality of second parallel strip-shape prisms, wherein both of the alignment directions of the first parallel strip-shape prisms and the second parallel strip-shape prisms are perpendicular to the direction of the major axes of the plurality of quantum rods, and the retardations of the first micro-prism layer and the second micro-prism layer are zero.

Quantum rod backlight module

An optical compensation film for a liquid crystal display is provided and comprises a liquid crystal layer which is disposed on a substrate and has a plurality of first stripe-structure regions with a first thickness and a plurality of second stripe-structure regions with a second thickness, wherein each of the second stripe-structure regions is contiguous to at least one of the first stripe-structure region and the second thickness is greater than the first thickness. The method for manufacturing the optical compensation film is provided.

Method for manufacturing optical compensation film

Optical compensation film and method for manufacturing the same

Growing community of inventors

Taoyuan, Taiwan

Meng-Chia Cheng