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US 10,948,634 B2Granted
Prism sheet, backlight module and display device
AssigneesBeijing Boe Display Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsTao Li, Zhuhua Nie, Qingping Yin, Qian Wang, Jianan Wang, Site Cai
Life of this patent
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Abstract
A prism sheet includes a prism substrate having at least one cavity therein and a plurality of prism microstructures arranged on a light exit surface of the prism substrate.
Claims14
A prism sheet, comprising:
- a prism substrate having at least one cavity therein;
- and
- a plurality of prism microstructures arranged on a light exit surface of the prism substrate, wherein
- the at least one cavity is at least one through hole passing through both a light incident surface of the prism substrate and the light exit surface of the prism substrate that are opposite to each other.
1 more element
Dependencies are inferred from the claim text.