Lichtemittierende Vorrichtung und Laserprojektionsvorrichtung

Details

Veröffentlichungs-Nr.

EP4761012

Anmeldetag

21. Juni 2024

Veröffentlichung

12. Juni 2025

Rechtsraum

EP

IPC

H01S5/02345

Abstract

A light-emitting apparatus and a laser projection device, relating to the technical field of lasers. In the light-emitting apparatus, a mounting substrate comprises a connecting pattern, electrical connection portions, and an in-board interconnection region, the electrical connection portions are located on the surface of the mounting substrate, and the electrical connection portions are electrically connected to the connecting pattern by means of the in-board interconnection region; and a light-emitting unit comprises a packaging tube housing and at least two types of laser chip groups having different light emitting colors and arranged in the packaging tube housing, the light-emitting unit is fixed to the mounting substrate, and the light-emitting unit is electrically connected to the connecting pattern. A plurality of groups of electrical connection portions are provided, and correspond one-to-one to the at least two types of laser chip groups, each group of electrical connection portions comprises a positive electrode connection portion and a negative electrode connection portion, the positive electrode connection portion is connected to a positive electrode of a corresponding color of laser chip group, and the negative electrode connection portion is connected to a negative electrode of a corresponding color of laser chip group. The light-emitting apparatus solves the problem that the number of driving circuits is increased along with an increase of the number of lasers, effectively improves the working efficiency of the driving circuits, reduces costs, and facilitates miniaturization design.

Anmelder

Firma

Hisense Laser Display Co., Ltd.

Land

🇨🇳 China

Fachgebiete