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1. 发明公开

EP4246228A1 PROJECTION OPTICAL PATH AND PROJECTION DEVICE 审中-实审
公开(公告)号：EP4246228A1
公开(公告)日：2023-09-20
申请号：EP21890631.1
申请日：2021-06-23
申请人： Goertek Optical Technology Co., Ltd.
发明人： GONG, Jingjian , DENG, Yangchun , DING, Weitao , LIU, Dean , LU, Gongtao
IPC分类号： G03B27/48 , G03B21/20
摘要： Disclosed are a projection optical path and a projection device. The projection optical path comprises a triple light source system (1) which emits a first converged light and a single light source system (2) which emits a light with a monochromatic wavelength. The triple light source system (1) comprises a second converged light which is converged with a light with a first wavelength to form the first converged light. The single light source system (2) comprises a third light source (30) which emits a light with a third wavelength. The light with the first wavelength, the light with the second wavelength, and the light with the third wavelength are respectively one of red light, green light, and blue light, a wavelength range of a light with a fourth wavelength is within a wavelength range of the red light. The wavelength of the light with the fourth wavelength is defined as λ1; the wavelength of the one among the light with the first wavelength, the light with the second wavelength, and the light with the third wavelength set as the red light is λ2, and λ1≠λ2. An excitation light source (50) emits an excitation light, and the excitation light is emitted to the first light source (10) or the second light source (20). The projection optical path can reduce the thermal effect generated by a red light source, and can improve the light emitting efficiency of light sources having other colors, thereby effectively improving the brightness of a whole display screen.

2. 发明公开

EP4246226A1 PROJECTION LIGHT PATH AND PROJECTION APPARATUS 审中-实审
公开(公告)号：EP4246226A1
公开(公告)日：2023-09-20
申请号：EP21890629.5
申请日：2021-06-21
申请人： Goertek Optical Technology Co., Ltd.
发明人： GONG, Jingjian , DENG, Yangchun , DING, Weitao , LIU, Dean , LU, Gongtao
IPC分类号： G03B21/20
摘要： Disclosed are a projection optical path and a projection device. The projection optical path comprises: a main optical path (1), which comprises a first light source (10) emitting a light with a first wavelength; and an auxiliary optical path (2), which comprises a second light source (20) emitting a light with a second wavelength, a third light source (30) emitting a light with a third wavelength, and a fourth light source (40) emitting a light with a fourth wavelength, wherein the light with the second wavelength, the light with the third wavelength and the light with the fourth wavelength are sequentially converged into the light with the first wavelength, wherein the light with the first wavelength, the light with the second wavelength and the light with the third wavelength are one of red light, green light, and blue light, respectively, wherein a wavelength range of the light with the fourth wavelength is within a wavelength range of the red light, and a wavelength of the light with the fourth wavelength is defined as λ1, and a wavelength of the red light among the light with the first wavelength, the light with the second wavelength and the light with the third wavelength is defined as X2, andλ1≠λ2; and an excitation light source (50) emitting an excitation light, wherein the excitation light is emitted to the first light source (10) or the second light source (20). The projection light path can not only reduce the red light thermal effect, but also improve the light emitting efficiency of the light source, such that the overall brightness of the protection screen is effectively improved.

3. 发明公开

EP4246225A1 PROJECTION OPTICAL PATH AND PROJECTION DEVICE 审中-实审
公开(公告)号：EP4246225A1
公开(公告)日：2023-09-20
申请号：EP21890628.7
申请日：2021-06-21
申请人： Goertek Optical Technology Co., Ltd.
发明人： GONG, Jingjian , DENG, Yangchun , DING, Weitao , LIU, Dean , LU, Gongtao
IPC分类号： G03B21/20
摘要： Disclosed are a projection optical path and a projection device. The projection optical path comprises a first converged light of a first dual-light source system (1) and a second converged light of a second dual-light source system (2); a first wavelength light, a second wavelength light, and a third wavelength light are respectively one of red light, green light, and blue light; a fourth wavelength light is within a wavelength range of the red light; the wavelength of the fourth wavelength light is defined as λ1; the wavelength of the one set as the red light among the first wavelength light, the second wavelength light, and the third wavelength light is λ2; λ1 is unequal to λ2; an excitation light source (50) emits an excitation light; and the excitation light is emitted to the first dual-light source system (1) or the second dual-light source system (2). According to the technical solution of the projection optical path and the projection device, the thermal effect generated by a red light source can be reduced, and the luminous efficiency of light sources having other colors can be improved, so that the brightness of a whole display screen is effectively improved.

4. 发明公开

EP4141857A1 DISPLAY METHOD, DISPLAY DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM 审中-实审
公开(公告)号：EP4141857A1
公开(公告)日：2023-03-01
申请号：EP20931812.0
申请日：2020-06-23
申请人： Goertek Optical Technology Co., Ltd.
发明人： LIU, Dean
IPC分类号： G09G3/32 , G09G3/3208 , G02B26/10 , G02B27/18 , G03B21/28
摘要： A display method, a display device and a computer-readable storage medium are disclosed for solving low resolution problem in display imaging of display devices assembled with Micro LEDs in the prior art. The display method is applied to the display device comprising an imaging assembly having at least one light source body and a scanning mirror located in a light path of light emitted from the light source body. The display method comprises: obtaining the resolution of an image to be displayed (S100); determining swing information of the scanning mirror and an output frequency of outputting a light beam from the light source body according to the resolution, the swing information comprises a swing frequency equal to the output frequency (S200); controlling the scanning mirror to swing according to the swing information and controlling the light source body to output light beam information according to the output frequency (S300).

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