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1. WO2020108391 - LASER PROJECTION DISPLAY METHOD, AND LASER PROJECTION APPARATUS

Publication Number WO/2020/108391
Publication Date 04.06.2020
International Application No. PCT/CN2019/120135
International Filing Date 22.11.2019
IPC
G03B 21/00 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
G09G 3/34 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
CPC
G03B 21/00
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
G03B 21/20
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
21Projectors or projection-type viewers; Accessories therefor
14Details
20Lamp housings
G09G 3/34
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
Applicants
  • 青岛海信激光显示股份有限公司 HISENSE LASER DISPLAY CO., LTD. [CN]/[CN]
Inventors
  • 肖纪臣 XIAO, Jichen
  • 赵一石 ZHAO, Yishi
Agents
  • 青岛清泰联信知识产权代理有限公司 QINGDAO LAWSCI INTELLECTUAL PROPERTY CO., LTD.
Priority Data
201811444372.829.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) LASER PROJECTION DISPLAY METHOD, AND LASER PROJECTION APPARATUS
(FR) PROCÉDÉ D’AFFICHAGE PAR PROJECTION LASER ET APPAREIL DE PROJECTION LASER
(ZH) 激光投影显示方法及激光投影设备
Abstract
(EN)
A laser projection display control method comprises: controlling, during an output time interval in which a light source (100) outputs a light beam of a primary color, the light source (100) to be off according to a preset rotating switching time interval (t1), the rotating switching time interval (t1) being shorter than the output time interval of the light beam of the primary color; driving, within the rotating switching time interval (t1), a digital micromirror device on a light valve (220) to rotate and switch between an on state and an off state; and upon a switching end time, controlling the rotating and switching digital micromirror device to restore to an original state thereof when the device started the rotating and switching, and controlling the light source (100) to be on.
(FR)
L'invention concerne un procédé de commande d'affichage par projection laser comprenant les étapes consistant à : commander, pendant un intervalle de temps de sortie au cours duquel une source de lumière (100) émet un faisceau lumineux d'une couleur primaire, la source de lumière (100) pour qu'elle soit éteinte selon un intervalle de temps de rotation et de commutation (t1) prédéfini, l'intervalle de temps de rotation et de commutation (t1) étant plus court que l'intervalle de temps de sortie du faisceau lumineux de la couleur primaire ; piloter, dans l'intervalle de temps de rotation et de commutation (t1), une matrice à micromiroirs sur un modulateur de lumière (220) pour qu'elle effectue une rotation et une commutation entre un état allumé et un état éteint ; et à un instant de fin de la commutation, commander la matrice à micromiroirs effectuant la rotation et la commutation pour qu'elle revienne à un état initial au début de la rotation et de la commutation, et commander la source de lumière (100) pour qu'elle soit allumée.
(ZH)
一种激光投影显示控制方法,包括:在光源(100)输出一基色光束的输出时间段内,按照设定的转动切换时段(t1),控制关闭光源(100),转动切换时段(t1)小于一基色光束的输出时段;在转动切换时段(t1)内,驱动光阀(220)上的数字微反射镜片在开状态和关状态之间进行转动切换;达到切换结束时间内,控制进行转动切换的数字微反射镜片恢复至开始转动切换时自身所处状态,并控制开启光源(100)。
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Latest bibliographic data on file with the International Bureau