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US 8,558,969 B2Granted
Prism sheet with curved surface and liquid crystal display device using same
AssigneesInnocom Technology (Shenzhen) Co., Ltd., Chimei Innolux Corporation
InventorsYi Xu, Ching-Huang Lin
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Abstract
An exemplary prism sheet includes a base including an upper surface and a plurality of lenses disposed on the upper surface. The upper surface is a wavy surface. A liquid crystal display device using the prism sheet is also provided.
Claims13
A prism sheet, comprising:
- a base comprising an upper surface;
- and
- a plurality of lenses disposed on the upper surface;
- wherein in a cross-section of the prism sheet, the upper surface is a continuous curve having a plurality of wave crests in different sizes and a plurality of wave troughs in different sizes;
- wherein the upper surface is wavy along a first direction and extends out linearly in a second direction, the first direction being perpendicular to the second direction;
- wherein the plurality of lenses form a serrated surface along the first direction and extend out linearly in the second direction, and each of the plurality of lenses is a long straight column having a triangular cross-section being parallel to each other.
3 more elements
A liquid crystal display device, comprising:
- a display panel;
- and
- a backlight module opposite to the display panel, the backlight module comprising:
- a prism sheet comprising a base and a plurality of lenses, the base comprising an upper surface, and the plurality of lenses are positioned on the upper surface;
- wherein in a cross-section of the prism sheet, the upper surface is a continuous curve having a plurality of wave crests in different sizes and a plurality of wave troughs in different sizes, the upper surface is wavy along a first direction and extends out linearly in a second direction, the first direction being perpendicular to the second direction;
- wherein the plurality of lenses form a serrated surface along the first direction and extend out linearly in the second direction, and each of the plurality of lenses is a long straight column having a triangular cross-section being parallel to each other.
3 more elements
A prism sheet, comprising:
- a base comprising an upper surface;
- and
- a plurality of lenses disposed on the upper surface;
- wherein in a cross-section of the prism sheet, the upper surface is a continuous curve having a plurality of wave crests in different sizes and a plurality of wave troughs in different sizes, and heights of at least two of the wave troughs are different from each other;
- wherein the upper surface is wavy along a first direction and extends out linearly in a second direction, the first direction being perpendicular to the second direction;
- wherein the plurality of lenses form a serrated surface along the first direction and extend out linearly in the second direction, and each of the plurality of lenses is a long straight column having a triangular cross-section being parallel to each other.
3 more elements
A liquid crystal display device, comprising:
- a display panel;
- and
- a backlight module opposite to the display panel, the backlight module comprising:
- a prism sheet comprising a base and a plurality of lenses, the base comprising an upper surface, and the plurality of lenses are positioned on the upper surface;
- wherein in a cross-section of the prism sheet, the upper surface is a continuous curve having a plurality of wave crests in different sizes and a plurality of wave troughs in different sizes, the upper surface is wavy along a first direction, and the lenses form a serrated surface along the first direction;
- wherein the base further comprises a lower surface, the lower surface comprising a plurality of uniformly distributed micro cavities;
- wherein the upper surface is wavy along a first direction and extends out linearly in a second direction, the first direction being perpendicular to the second direction;
- wherein the plurality of lenses form a serrated surface along the first direction and extend out linearly in the second direction, and each of the plurality of lenses is a long straight column having a triangular cross-section being parallel to each other.
5 more elements
A liquid crystal display device, comprising:
- a display panel;
- and
- a backlight module opposite to the display panel, the backlight module comprising:
- a prism sheet comprising a base and a plurality of lenses, the base comprising an upper surface, and the lenses positioned on the upper surface;
- wherein in a cross-section of the prism sheet, the upper surface is a continuous curve having a plurality of wave crests in different sizes and a plurality of wave troughs in different sizes, the upper surface is wavy along a first direction, and the lenses form a serrated surface along the first direction;
- wherein heights as measured between tops of the wave crests and bottoms of the wave troughs are non-uniform;
- wherein the upper surface is wavy along a first direction and extends out linearly in a second direction, the first direction being perpendicular to the second direction;
- wherein the plurality of lenses form a serrated surface along the first direction and extend out linearly in the second direction, and each of the plurality of lenses is a long straight column having a triangular cross-section being parallel to each other.
5 more elements
Dependencies are inferred from the claim text.