WO2017186045A1 - Structure pour monter un dispositif à micro-miroir numérique, et dispositif d'affichage d'image - Google Patents

Structure pour monter un dispositif à micro-miroir numérique, et dispositif d'affichage d'image Download PDF

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Publication number
WO2017186045A1
WO2017186045A1 PCT/CN2017/081138 CN2017081138W WO2017186045A1 WO 2017186045 A1 WO2017186045 A1 WO 2017186045A1 CN 2017081138 W CN2017081138 W CN 2017081138W WO 2017186045 A1 WO2017186045 A1 WO 2017186045A1
Authority
WO
WIPO (PCT)
Prior art keywords
digital micromirror
circuit board
mounting structure
printed circuit
pressure plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/081138
Other languages
English (en)
Chinese (zh)
Inventor
杨义红
李屹
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Appotronics Corp Ltd
Original Assignee
Appotronics Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Appotronics Corp Ltd filed Critical Appotronics Corp Ltd
Publication of WO2017186045A1 publication Critical patent/WO2017186045A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS 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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/0008—Apparatus or processes for manufacturing printed circuits for aligning or positioning of tools relative to the circuit board

Definitions

  • the present invention relates to the field of digital light processing technology, and more particularly to a digital micromirror assembly mounting structure and an image display device.
  • the projector is divided into CRT three-gun projector, LCD projector and DLP projector by its imaging principle.
  • DLP projector is widely used due to its high native contrast, miniaturization of the machine and closed type of optical path.
  • DMD Digital Micromirror Devices
  • PCB printed circuit board
  • PCB printed Circuit Board
  • the pressure plate and the housing directly pass the locking
  • the studs are connected, and the pressure plate directly abuts the printed circuit board, thereby pressing the printed circuit board through the pressing plate, thereby pressing the digital micromirror assembly.
  • the printed circuit board is subjected to bending moment when compacting the digital micromirror assembly;
  • the pressing plate and the locking plate There is a gap between the studs, so that the pressure plate bears the bending moment when the digital micro-mirror assembly is pressed, and the printed circuit board is also subjected to the bending moment because the pressure plate directly abuts the printed circuit board. Therefore, in the above two mounting structures, when the digital micromirror assembly is pressed, the printed circuit board is subjected to bending moment, which generates bending stress and affects the stability of the digital micromirror assembly.
  • the present invention provides the following technical solutions:
  • a digital micromirror assembly mounting structure includes: a housing for supporting a digital micromirror assembly, and a pressing plate, an elastic member and a printed circuit board for pressing the digital micromirror assembly with the housing;
  • the pressure plate is rigidly connected to the housing, and the pressure plate and the elastic member and the printed circuit board are sequentially connected.
  • the elastic member is an elastic spacer.
  • the elastic spacer is a silicone pad.
  • the digital micromirror assembly mounting structure further includes: a support post fixedly coupled to the housing; wherein the pressure plate is rigidly coupled to the housing through the support post.
  • the pressure plate and the support column are rigidly connected by a locking screw.
  • the support column and the housing are of a unitary structure.
  • the printed circuit board is sleeved on the support column.
  • the support columns are an even number, and the support columns are evenly distributed at both ends of the pressure plate.
  • the support columns are at least three and are evenly distributed along the circumferential direction of the pressure plate.
  • the present invention also provides an image display device comprising: a digital micromirror assembly for mounting a mounting structure of the digital micromirror assembly, based on the above-described provision of a digital micromirror assembly mounting structure; wherein the mounting The structure is a digital micromirror assembly mounting structure according to any of the above.
  • the image display device further includes a heat sink, and the heat sink is mounted to the pressure plate.
  • the image display device is a projector.
  • the compacting principle of the digital micromirror assembly mounting structure provided by the invention is: rigidly connecting the pressure plate to the housing, so that the pressure plate presses the printed circuit board against the digital micromirror assembly through the elastic member, and the digital micro mirror assembly is sealed by the shell
  • the body support enables the clamping of the digital micromirror assembly, that is, the installation of the digital micromirror assembly is completed.
  • the digital micromirror assembly mounting structure provided by the invention has a rigid connection between the pressure plate and the housing, and the pressure plate is subjected to bending moment when being pressed, generating bending stress, deforming, and the elastic member is located between the pressure plate and the printed circuit board.
  • the elastic member compensates for the deformation of the pressure plate according to its own elasticity, thereby avoiding the bending moment of the printed circuit board, that is, the bending stress of the printed circuit board is avoided, thereby avoiding the stability of the digital micro-mirror assembly.
  • the digital micromirror assembly mounting structure provided by the present invention can further control the digital micro through the elastic member to control the pressing force applied to the digital micromirror assembly by the elastic member, since the elastic member is located between the pressing plate and the printed circuit board. The stability of the mirror assembly.
  • FIG. 1 is a schematic structural diagram of a digital micromirror assembly mounting structure according to an embodiment of the present invention.
  • 1 is a digital micromirror assembly
  • 11 is a digital micromirror body
  • 12 is a mounting seat
  • 2 is a support column
  • 3 is a printed circuit board
  • 4 is a pressure plate
  • 5 is a locking screw
  • 6 is an elastic member
  • 7 is a housing .
  • a digital micromirror assembly mounting structure provided by an embodiment of the present invention includes: a housing 7 , a printed circuit board 3 , an elastic member 6 and a pressure plate 4 ; wherein the housing 7 is used to support the digital micro mirror assembly 1.
  • the pressure plate 4, the elastic member 6, and the printed circuit board 3 are used to press the digital micromirror assembly 1 in cooperation with the housing 7.
  • the pressure plate 4 is rigidly connected to the housing 7, and the pressure plate 4, the elastic member 6, and the printed circuit board 3 are sequentially connected.
  • the support portion of the housing 7 is located on one side of the digital micromirror assembly 1, and the printed circuit board 3, the elastic member 6 and the pressure plate 4 are all located on the other side of the digital micromirror assembly 1.
  • the pressing principle of the above-mentioned digital micromirror assembly mounting structure is: rigid connection with the housing 7 through the pressing plate 4, so that the pressing plate 4 presses the printed circuit board 3 against the digital micromirror assembly 1 through the elastic member 6, and also because of the digital micromirror
  • the assembly 1 is supported by the housing 7, which enables clamping of the digital micromirror assembly 1, i.e., the mounting of the digital micromirror assembly 1 is completed.
  • the digital micromirror assembly mounting structure provided by the embodiment of the present invention, because the pressure plate 4 is rigidly connected with the housing 7, the pressing plate 4 will bear the bending moment when compacted, generate bending stress, deform, and the elastic member is located on the pressing plate 4 and Between the printed circuit boards 3, the elastic member 6 compensates for the deformation of the pressure plate 4 according to its own elasticity, thereby avoiding the bending moment of the printed circuit board 3, that is, the bending stress of the printed circuit board 3 is avoided, thereby avoiding the bending stress. Affects the stability of the digital micromirror assembly 1.
  • the above-described digital micromirror assembly mounting structure can control the pressing force applied to the digital micromirror assembly 1 by the elastic member 6 by the elastic member 6, and further The stability of the digital micromirror assembly 1 is controlled.
  • the elastic member 6 may be an elastic spacer, an elastic column, a spring or the like.
  • the elastic member 6 is preferably an elastic spacer. In this way, it is also easy to compensate for the deformation of the pressure plate 4.
  • the elastic spacer is a silicone pad.
  • the elastic spacer is also selected as the rubber mat, and is not limited to the above embodiment.
  • the shape of the elastic spacers can be designed according to the shape of the pressure plate 4 and the printed circuit board 3, such as a square or a circle, which is not limited in the embodiment of the present invention.
  • the elastic member 6 is located at the center of the printed circuit board 3. Specifically, if the elastic member 6 is an elastic spacer, the central axis of the elastic spacer is collinear with the center line of the printed circuit board 3. It can be understood that the center line of the printed circuit board 3 extends in the thickness direction of the printed circuit board 3. If the elastic member 6 is an elastic column or a spring or the like, the elastic members 6 are at least two and evenly distributed along the ring, and the center line of the ring formed by the elastic member 6 is collinear with the center line of the printed circuit board 3.
  • the position of the elastic member 6 can also be adjusted according to the deformation of the pressure plate 4, and is not limited to the above embodiment.
  • the pressure plate 4 is rigidly connected to the housing 7, and there are various ways, such as welding, screw connection, riveting, bonding, and the like.
  • the platen 4 is located on the side of the printed circuit board 3 remote from the digital micromirror assembly 1. It is necessary to provide a structure for projecting toward the pressure plate 4 on the casing 7 to achieve a rigid connection with the pressure plate 4.
  • the above-mentioned digital micro-mirror assembly mounting structure further includes: a support column 2 fixedly connected to the housing 7; wherein the pressure plate 4 is rigidly connected to the housing 7 through the support column 2. It can be understood that the pressure plate 4 is rigidly connected to the support column 2.
  • the pressure plate 4 and the support column 2 are rigidly connected by a locking screw 5.
  • the support column 2 is provided with a threaded hole for locking by the locking screw 5.
  • the above structure facilitates the mounting and dismounting of the pressure plate 4 and the support column 2.
  • the support column 2 and the housing 7 are of a unitary structure, as shown in FIG. This simplifies assembly and facilitates production.
  • the support post 2 it is also possible to select the support post 2 to be welded or bonded to the housing 7, and is not limited to the above embodiment.
  • the support post 2 has a dual function, which facilitates the positioning of the printed circuit board 3 while the press plate 4 is rigidly connected to the housing 7.
  • the support post 2 does not support the bottom surface of the printed circuit board 3.
  • the bottom surface of the printed circuit board 3 refers to the side of the printed circuit board 3 adjacent to the digital micromirror assembly 1.
  • the support column 2 is an equal diameter cylinder.
  • the design can be designed according to actual needs, and only the pressure plate 4 can be rigidly connected to the casing 7.
  • the support columns 2 are an even number, and the support columns 2 are evenly distributed at both ends of the pressure plate 4.
  • the support columns 2 are an even number, and the support columns 2 are evenly distributed at both ends of the pressure plate 4.
  • one end of the pressure plate 4 is supported by one support column 2, and the other end of the pressure plate 4 is supported by the other support column 2.
  • Taking four of the support columns 2 as an example, one end of the pressure plate 4 is supported by two support columns 2, and the other end of the pressure plate 4 is supported by the other two support columns 2.
  • the shape and size of the pressure plate 4 can be designed according to actual needs, which is not limited by the embodiment of the present invention.
  • an embodiment of the present invention further provides an image display device, including: a digital micromirror assembly for mounting a mounting structure of the digital micromirror assembly;
  • the mounting structure is the digital micromirror assembly mounting structure described in the above embodiment.
  • the above-mentioned digital micro-mirror assembly mounting structure has the above-mentioned technical effects.
  • the image display device provided by the embodiment of the present invention has the above-mentioned digital micro-mirror assembly mounting structure, and the image display device provided by the embodiment of the present invention also has corresponding technical effects. Let me repeat.
  • the digital micromirror assembly 1 includes a socket 12 and a digital micromirror body 11 fixed to the mount 12; wherein the socket 12 abuts the printed circuit board 3, the number The micromirror body 11 abuts against the housing 7.
  • the abutment of the digital micromirror body 11 with the housing 7 refers to a protrusion extending from the housing 7 to abut the digital micro-mirror body 11 without affecting the light output of the digital micromirror body 11.
  • the mounting seat 12 has a lead, and a side of the mounting base 12 that abuts the digital micro-mirror body 11 is electrically connected to the digital micro-mirror body through a pin, and a side of the mounting seat 12 that abuts the printed circuit board 3 is electrically connected to the lead through a lead. Corresponding contact points on the printed circuit board 3.
  • the digital micromirror body 11 is usually a DMD chip of Texas Instruments.
  • the digital micromirror body 11 and the mounting base 12 may also be integrated.
  • the digital micromirror assembly 11 may also be external in appearance.
  • the digital micromirror component 11 herein refers to a component formed by an independent DMD and a socket, and may also be an assembly of a DMD and a socket integrated.
  • the above image display device in order to ensure normal operation, it is necessary to provide a heat sink.
  • the above image display device includes a heat sink. Since the pressure plate 4 is rigidly coupled to the housing 7, the heat sink is preferably mounted to the pressure plate 4, so that the structure of the entire image display device is more compact. Further, the heat sink is mounted to the pressure plate 4 by a threaded connection. Of course, the heat sink can also be selected for mounting in other ways, such as welding, riveting, etc., without being limited thereto.
  • the image display device may be a projector, a microscope, or the like.
  • the specific type of the image display device is not limited in the embodiment of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

L'invention concerne une structure pour monter un dispositif à micro-miroir numérique (1), et un dispositif d'affichage d'image. La structure comprend : une plaque de pression (4) utilisée pour fonctionner avec un boîtier (7) pour maintenir fermement le dispositif à micro-miroir numérique (1) ; un élément élastique (6) ; et une carte de circuits imprimés (3). La plaque de pression (4) et le boîtier (7) forment une liaison rigide, et la plaque de pression (4), l'élément élastique (6) et la carte de circuits imprimés (3) sont reliés séquentiellement. Dans la structure pour le montage d'un dispositif à micro-miroir numérique (1), étant donné que la plaque de pression (4) et le boîtier (7) forment la liaison rigide, la plaque de pression (4), lorsqu'elle est pressée fermement, subit un moment de flexion et produit une contrainte de flexion, ce qui entraîne une déformation. En outre, étant donné que l'élément élastique (6) est situé entre la plaque de pression (4) et la carte de circuits imprimés (3), l'élément élastique (6) peut compenser, en fonction de son élasticité, la déformation de la plaque de pression (4), permettant ainsi d'empêcher que la carte de circuits imprimés (3) subisse le moment de flexion, et, par la suite, d'empêcher que la carte de circuits imprimés (3) ne produise la contrainte de flexion, permettant ainsi d'éviter que la stabilité du dispositif à micro-miroir numérique (1) ne soit affectée. Également, le mode de réalisation peut réguler, au moyen de l'élément élastique (6), une force de pression de la plaque de pression (4) s'appliquant sur le dispositif à micro-miroir numérique (1), régulant ainsi davantage la stabilité du dispositif à micro-miroir numérique (1).
PCT/CN2017/081138 2016-04-27 2017-04-19 Structure pour monter un dispositif à micro-miroir numérique, et dispositif d'affichage d'image Ceased WO2017186045A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610267908.8A CN107315307B (zh) 2016-04-27 2016-04-27 数字微镜组件安装结构和图像显示装置
CN201610267908.8 2016-04-27

Publications (1)

Publication Number Publication Date
WO2017186045A1 true WO2017186045A1 (fr) 2017-11-02

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PCT/CN2017/081138 Ceased WO2017186045A1 (fr) 2016-04-27 2017-04-19 Structure pour monter un dispositif à micro-miroir numérique, et dispositif d'affichage d'image

Country Status (2)

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CN (1) CN107315307B (fr)
WO (1) WO2017186045A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111986573A (zh) * 2020-08-24 2020-11-24 Oppo（重庆）智能科技有限公司 显示组件和电子设备
CN113075841A (zh) * 2020-12-23 2021-07-06 深圳市安华光电技术有限公司 光机及投影仪
CN114885497A (zh) * 2022-05-13 2022-08-09 苏州三星电子电脑有限公司 电子设备

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2606906Y (zh) * 2003-03-21 2004-03-17 光宝科技股份有限公司 应用于光学投影装置的挠性组装系统及其机构
US20060227514A1 (en) * 2005-04-08 2006-10-12 Samsung Electronics Co., Ltd. Digital micro-mirror device (DMD) assembly for an optical projection system
CN1949076A (zh) * 2005-10-14 2007-04-18 明基电通股份有限公司 光学投影系统
CN101221347A (zh) * 2007-01-11 2008-07-16 中强光电股份有限公司 光阀模块
CN205721038U (zh) * 2016-04-27 2016-11-23 深圳市光峰光电技术有限公司 数字微镜组件安装结构和图像显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2606906Y (zh) * 2003-03-21 2004-03-17 光宝科技股份有限公司 应用于光学投影装置的挠性组装系统及其机构
US20060227514A1 (en) * 2005-04-08 2006-10-12 Samsung Electronics Co., Ltd. Digital micro-mirror device (DMD) assembly for an optical projection system
CN1949076A (zh) * 2005-10-14 2007-04-18 明基电通股份有限公司 光学投影系统
CN101221347A (zh) * 2007-01-11 2008-07-16 中强光电股份有限公司 光阀模块
CN205721038U (zh) * 2016-04-27 2016-11-23 深圳市光峰光电技术有限公司 数字微镜组件安装结构和图像显示装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111986573A (zh) * 2020-08-24 2020-11-24 Oppo（重庆）智能科技有限公司 显示组件和电子设备
CN113075841A (zh) * 2020-12-23 2021-07-06 深圳市安华光电技术有限公司 光机及投影仪
CN114885497A (zh) * 2022-05-13 2022-08-09 苏州三星电子电脑有限公司 电子设备
US12363828B2 (en) 2022-05-13 2025-07-15 Samsung Electronics Co., Ltd. Electronic device

Also Published As

Publication number Publication date
CN107315307B (zh) 2020-07-07
CN107315307A (zh) 2017-11-03

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