- Patent Title: Display apparatus and method of operation for a display apparatus
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Application No.: US17610631Application Date: 2020-04-27
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Publication No.: US11763731B2Publication Date: 2023-09-19
- Inventor: Brendan Holland , Gunnar Petersen , Daniel Richter
- Applicant: OSRAM Opto Semiconductors GmbH
- Applicant Address: DE Regensburg
- Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
- Current Assignee: OSRAM OPTO SEMICONDUCTORS GMBH
- Current Assignee Address: DE Regensburg
- Agency: HAUPTMAN HAM, LLP
- Priority: DE 2019112456.5 2019.05.13
- International Application: PCT/EP2020/061617 2020.04.27
- International Announcement: WO2020/229147A 2020.11.19
- Date entered country: 2021-11-11
- Main IPC: G09G3/32
- IPC: G09G3/32 ; G09G3/20

Abstract:
A display apparatus includes a multiplicity of picture elements for emitting visible light in different colors in an adjustable manner by means of a plurality of semiconductor layer sequences. Each of the picture elements has a plurality of types of pixels and each type of pixels is configured for emitting light of a specific color. The pixels are each subdivided into a plurality of sub-pixel. All the sub-pixels are configured for emitting light of the same color out of the display apparatus without further color change. At least two sub-pixels within each pixel have emission areas of different sizes. An electrical control unit is assigned to each pixel. The control units are each configured to automatically control the sub-pixels of a relevant pixel depending on an energization intensity in such a way that a light-emitting area of the relevant pixel increases in stepped fashion with the energization intensity.
Public/Granted literature
- US20220319400A1 DISPLAY APPARATUS AND METHOD OF OPERATION FOR A DISPLAY APPARATUS Public/Granted day:2022-10-06
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