Invention Grant
- Patent Title: Light emitting element, light emitting device, image display device, method of driving light emitting element, and method of producing light emitting element
- Patent Title (中): 发光元件,发光装置,图像显示装置,驱动发光元件的方法,以及制造发光元件的方法
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Application No.: US12782024Application Date: 2010-05-18
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Publication No.: US08110971B2Publication Date: 2012-02-07
- Inventor: Hiroyuki Hirakawa , Yasuo Imura , Ayae Nagaoka , Tadashi Iwamatsu
- Applicant: Hiroyuki Hirakawa , Yasuo Imura , Ayae Nagaoka , Tadashi Iwamatsu
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Nixon & Vanderhye, P.C.
- Priority: JP2009-121457 20090519
- Main IPC: G02F1/335
- IPC: G02F1/335 ; G03G15/02

Abstract:
A light emitting element of the present invention includes an electrode substrate; a thin-film electrode; and an electron acceleration layer sandwiched between the electrode substrate and the thin-film electrode. In the electron acceleration layer, as a result of a voltage applied between the electrode substrate and the thin-film electrode, electrons are accelerated so as to be turned into hot electrons. The hot electrons excite surfaces of the silicon fine particles contained in the electron acceleration layer so that the surfaces of the silicon fine particles emit light. Such a light emitting element of the present invention is a novel light emitting element, which has not been achieved by the conventional techniques. That is, the light emitting element of the present invention is able to (i) be produced by using a silicon material, which is available at low price, through a simple production method, and (ii) efficiently emit light.
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