| Original document(24 pages) 中文版 |
A converging sheet includes a light-emerging-side lens member formed of a plurality of unit lenses of convex shape that are arranged on a light-emerging side, and a scattering layer that is formed along a surface of each unit lens and scatters light. The scattering layer includes light diffusing particles. A thickness t of the scattering layer is equal to or more than one-tenth the lens pitch p. The converging sheet satisfies the following relationships: dx((t+h+p)/Phi)>50% and dx(t/Phi)<50%, in which d represents a volume ratio (%) of the light diffusing particles mixed in the scattering layer relative to the scattering layer, Phi represents an average grain diameter (mm) of the light diffusing particles, and h represents a height from the apex to a bottom of the convex shape of the unit lens. |
Application Number
申请号 |
200610067695 |
Application Date
申请日 |
2006.03.16 |
| Title 名称 |
Converging sheet, surface light source unit, and transmission type display
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Publication Number
公开号 |
1834755 |
Publication Date
公开日 |
2006.09.20 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
G02F1/13357,F21V17/00,G09F9/00 |
Applicant(s) Name
申请人 |
Dainippon Printing Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
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| Attorney & Agent 代理人 |
pu baimeng liu zongjie |
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