Portable device including external-light-shielding sheet

Details Portable device including external-light-shielding sheet Portable device including external-light-shielding sheet

2008-12-22

2011-11-29

Vu, Phu (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C359S601000

Reexamination Certificate

active

08068195

ABSTRACT:
A portable device including an external-light-shielding sheet is provided. The portable device includes a display panel; and an external-light-shielding sheet arranged on the display panel, wherein the external-light-shielding sheet includes a base portion and a plurality of wedge shaped portions arranged on the base portion to absorb external light. Therefore, it is possible to absorb and block as much external light as possible. In addition, it is possible to improve bright-room contrast by effectively realizing a black image on a display panel.

REFERENCES:
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patent: 2008/0151555 (2008-06-01), Jo et al.
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patent: 10-2003-0062668 (2003-07-01), None
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patent: 10-2008-0016308 (2008-02-01), None
Korean Office Action dated Jan. 6, 2010 for Application No. 10-2008-0036265.
Korean Office Action dated Jul. 15, 2009.

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