Invention Grant
- Patent Title: Apex angle reduction in a LED device with a LED array
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Application No.: US16706002Application Date: 2019-12-06
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Publication No.: US11005016B2Publication Date: 2021-05-11
- Inventor: Soeren Steudel , Zsolt Tokei , Paul Heremans
- Applicant: IMEC VZW
- Applicant Address: BE Leuven
- Assignee: IMEC VZW
- Current Assignee: IMEC VZW
- Current Assignee Address: BE Leuven
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Priority: EP18211303 20181210
- Main IPC: H01L33/58
- IPC: H01L33/58 ; H01L27/15 ; H01L33/62

Abstract:
A Light Emitting Diode (LED) device, particularly a micro-LED (μLED) device, suitable for a μLED display is described. The LED device comprises a LED array with a plurality of LEDs 12. It also comprises at least one top contact and bottom contact electrically connected to the LED array. Further, it comprises a conductive structure arranged above the LED array and the top contact, respectively, and electrically connected to the top contact. The conductive structure is, regarding each LED of the LED array, configured to absorb a first part of the light emitted by the LED, and to pass a second part of the light emitted by the LED. An emission angle (beam angle) of the passed light is thereby smaller than an emission angle of the light emitted by the LED.
Public/Granted literature
- US20200185579A1 Apex Angle Reduction in a LED Device With a LED Array Public/Granted day:2020-06-11
Information query
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