Diffusion plate, backlight assembly having the same and display device having the same
AssigneeSamsung Electronics Co., Ltd.
InventorsJu-Hwa Ha, Jin-Sang Choi
Life of this patent
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Abstract
A diffusion plate having a multi-layered structure, a backlight assembly having the diffusion plate, and a display device having the diffusion plate are presented. The diffusion plate includes a lower skin layer, a core layer, and an upper skin layer. The lower skin layer modulates and mixes light. The core layer is on the lower skin layer to diffuse the light that has passed through the lower skin layer. The upper skin layer is on the core layer. The upper skin layer has a prism patterned on a surface. Therefore, the number of optical sheets is decreased, and luminance uniformity is improved.
Claims29
A diffusion plate comprising:
- a lower skin layer that modulates and mixes light;
- a core layer on the lower skin layer to diffuse the light that has passed through the lower skin layer;
- and
- an upper skin layer on the core layer, the upper skin layer having a prism patterned on a surface of the upper skin layer that is farthest from the core layer.
A backlight assembly comprising:
- a light source unit that generates light;
- and
- a diffusion plate that has a multi-layered structure including layers of varying light transmittance properties to enhance luminance uniformity of the light.
A display device comprising:
- a light source unit that generates light;
- and
- a backlight assembly including:
- a display panel on the light source unit to display an image using the light generated from the light source;
- and
- a luminance improving unit that has a multi-layered structure with layers of varying light transmittance properties to increase a luminance uniformity of the light, the luminance improving unit being interposed between the light source unit and the display panel.
Dependencies are inferred from the claim text.