Young Lighting Technology Corporation

Coretronic Corporation

Wei-Chun Yang

Wei-Chih Wang

Tzeng-Ke Shiau

Chi-Ming Tseng

Yi-Cheng Lin

Udo Custodis

Shih-Yuan Yu

Chia-Liang Kang

Shih-Wei Liu

Yi-cheng Lin

Ying-Shun Syu

Lei-Ken Hung

Cheng-Yi Tseng

Yu- Shih-Yuan

A light guide element includes first and second surfaces, a light-incident surface, and microstructure groups arranged on the first surface. Each microstructure group includes a first microstructure and a second microstructure separated from and being mirror image structures of each other. A first intersection line is provided between a first light-receiving surface of the first microstructure and the first surface. A first distance is provided between the first intersection line and a light-incident intersection line in a first direction. A second intersection line is provided between a second light-receiving surface of the second microstructure and the first surface. A second distance is provided between the second intersection line and the light-incident intersection line in the first direction. A variation trend of the first distance in a second direction is opposite to a variation trend of the second distance in the second direction.

Light guide element and backlight module

A light source module includes a light guide plate, a light-emitting element, and first and second prism sheets. One of the light-emitting surface and the bottom surface of the light guide plate has strip-shaped microstructures. The bottom surface has bottom microstructures, and the angle between the first surface of each bottom microstructure and the bottom surface is 1° to 17°. The first prism sheet is disposed on the light-emitting surface and between the light-emitting surface and the second prism sheet and includes first prism rods. The second prism sheet includes second prism rods. The aspect ratio of the strip-shaped microstructure is greater than 0.2. The angle between the maximum luminance direction of the light from the light-emitting surface and the normal direction of the light-emitting surface is less than 70°. The light-emitting angle range is less than 40°. A display device including the light source module is also provided.

Light source module and display device

An illumination apparatus includes a light guide plate having a plurality of first and second diffusion net points formed on a surface of a light transmissive substrate, and at least one light emitting element disposed to emit light into a light incident surface of the light guide plate. A portion of the first diffusion net points at least partially overlaps the second diffusion net points, and the size of the first diffusion net points is smaller than the size of the second diffusion net points.

Light guide plate with overlapping diffusion net points, and illumination apparatus using such plate

A light plate includes a light guide plate and four light source modules. The light source modules are disposed around the light guide plate. Each of the light source modules includes a first white light emitting element and a second white light emitting element. The first white light emitting element is capable of emitting a first white beam. The second white light emitting element disposed beside the first white light emitting element is capable of emitting a second white beam. The first white light emitting elements of the light source modules are mirror-symmetrical with respect to a first reference plane and a second reference plane. The second white light emitting elements of the light source modules are mirror-symmetrical with respect to the first reference plane and the second reference plane. The correlated color temperature (CCT) of the first white beam is greater than the CCT of the second white beam.

Light plate

An illumination apparatus includes a light guide plate, a first light source module, and a second light source module. The light guide plate has a first incident surface and a second incident surface opposite to the first incident surface. The first and the second light source modules provide light beams into the first and the second incident surfaces, respectively. The first light source module includes at least one first white light emitting diode (LED) and at least one second white LED neighboring with each other. The first and the second white LEDs have different color temperatures. The second light source module includes at least one third white LED and at least one forth white LED neighboring with each other. The third and the forth white LEDs have different color temperatures. The third and the forth white LEDs are located corresponding to the second and the first white LEDs, respectively.

Illumination apparatus

Growing community of inventors

Hsin-Chu, Taiwan

Wei-Chun Yang