Prism sheet and backlight module incorporating same
AssigneesInnocom Technology (Shenzhen) Co., Ltd., Innolux Display Corp.
InventorsYing Wei, Ching-Huang Lin
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Abstract
A prism sheet (10) includes a substrate (12) and a plurality of prism structures (14). The substrate includes a plurality of diffusing particles (122) dispersed therein. The prism structures are at a light output side of the substrate. The diffusing particles can diffuse light beams traveling through the substrate. This configuration performs the same function as that of a diffusing sheet of a conventional backlight module. The prism structures can gather light beams to improve a brightness of a backlight module (6) incorporating the prism sheet. Thus, the backlight module can provide bright and uniform light at a low cost and while having a reduced thickness.
Claims19
A prism sheet, comprising;
- a substrate comprising a plurality of diffusing particles dispersed therein for diffusing light beams traveling through the substrate, and a plurality of prism structures at a light output side of the substrate, wherein the substrate and the diffusing particles are made from the same material.
A backlight module, comprising;
- a light guide plate, comprising a first surface;
- and
- a prism sheet disposed adjacent to the first surface of the light guide plate, comprising;
- a substrate comprising a plurality of diffusing particles dispersed therein for diffusing light beams traveling through the substrate;
- and a plurality of prism structures at a light output side of the substrate, wherein the substrate and the diffusing particles are made from the same material.
A backlight module, comprising;
- a light guide plate, comprising a first surface;
- and
- a prism sheet disposed adjacent to the first surface of the light guide plate, comprising;
- a substrate comprising a plurality of diffusing structures dispersed therein for diffusing light beams traveling through the substrate;
- and a plurality of prism structures at a light output side of the substrate wherein the substrate and the diffusing structures are made from the same material.
Dependencies are inferred from the claim text.