Invention Grant
- Patent Title: Laser projection apparatus having a display control circuit
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Application No.: US17381760Application Date: 2021-07-21
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Publication No.: US11762270B2Publication Date: 2023-09-19
- Inventor: Kai Wu , Zhen Wang
- Applicant: Hisense Laser Display Co., Ltd.
- Applicant Address: CN Shandong
- Assignee: HISENSE LASER DISPLAY CO., LTD.
- Current Assignee: HISENSE LASER DISPLAY CO., LTD.
- Current Assignee Address: CN Shandong
- Agency: Morgan, Lewis & Bockius LLP
- Priority: CN 1910539233.1 2019.06.20
- Main IPC: G03B21/20
- IPC: G03B21/20 ; H04N9/31

Abstract:
A laser projection apparatus includes a display control circuit, a laser source, and a laser source driving circuit connected to the display control circuit and the laser source. The display control circuit is configured to generate N current control signals corresponding to each of a plurality of frames of images, and select an effective current control signal from the N current control signals. The N current control signals include current control signals that are in one-to-one correspondence with M primary colors of each frame of image, and a hybrid-color current control signal, N is an integer greater than 2, and M is a positive integer. The laser source driving circuit is configured to control the laser source to emit light according to the effective current control signal. Magnitudes of effective current control signals corresponding to at least two of the plurality of frames of images are different.
Public/Granted literature
- US20210352251A1 LASER PROJECTION APPARATUS Public/Granted day:2021-11-11
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