Invention Grant
- Patent Title: Electroluminescence display device with microlens
- Patent Title (中): 具有微透镜的电致发光显示装置
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Application No.: US11358132Application Date: 2006-02-22
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Publication No.: US07659662B2Publication Date: 2010-02-09
- Inventor: Young-Woo Song , Yoon-Chang Kim , Jong-Seok Oh , Sang-Hwan Cho , Ji-Hoon Ahn , Joon-Gu Lee , So-Young Lee , Jae-Heung Ha
- Applicant: Young-Woo Song , Yoon-Chang Kim , Jong-Seok Oh , Sang-Hwan Cho , Ji-Hoon Ahn , Joon-Gu Lee , So-Young Lee , Jae-Heung Ha
- Applicant Address: KR Yongin
- Assignee: Samsung Mobile Display Co., Ltd.
- Current Assignee: Samsung Mobile Display Co., Ltd.
- Current Assignee Address: KR Yongin
- Agency: H.C. Park & Associates, PLC
- Priority: KR10-2005-0016888 20050228
- Main IPC: H05B33/00
- IPC: H05B33/00 ; H01J1/62

Abstract:
An electroluminescence (EL) display device is disclosed with a microlens layer positioned between a light-emission layer and a color converting layer or a color filter layer. The microlens layer can be formed separately or integrally with an electrode of the EL display device. Light emitted from the light-emitting layer passes through an electrode and then through the microlens layer, which has a higher refractive index than the electrode to focus light in a predetermined direction. The light then passes through the color converting layer or a color filter layer to emit red, green, or blue light from the device. The microlens layer and color converting layer or color filter layer can be disposed for either active matrix or passive matrix, and for either a top-emission type, bottom-emission type, or dual emission type EL display device for improved external light coupling efficiency and brightness.
Public/Granted literature
- US20060192485A1 Electroluminescence display device Public/Granted day:2006-08-31
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