CN106646871B - Head-mounted display with heat radiation system - Google Patents
Head-mounted display with heat radiation system Download PDFInfo
- Publication number
- CN106646871B CN106646871B CN201610913809.2A CN201610913809A CN106646871B CN 106646871 B CN106646871 B CN 106646871B CN 201610913809 A CN201610913809 A CN 201610913809A CN 106646871 B CN106646871 B CN 106646871B
- Authority
- CN
- China
- Prior art keywords
- fan
- shell
- air
- mounted display
- pcb
- 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.)
- Active
Links
- 230000005855 radiation Effects 0.000 title abstract description 5
- 230000017525 heat dissipation Effects 0.000 claims abstract description 20
- 230000004438 eyesight Effects 0.000 claims description 3
- MTLMVEWEYZFYTH-UHFFFAOYSA-N 1,3,5-trichloro-2-phenylbenzene Chemical compound ClC1=CC(Cl)=CC(Cl)=C1C1=CC=CC=C1 MTLMVEWEYZFYTH-UHFFFAOYSA-N 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/017—Head mounted
- G02B27/0176—Head mounted characterised by mechanical features
-
- 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
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
- H05K7/20972—Forced ventilation, e.g. on heat dissipaters coupled to components
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a head-mounted display with a heat radiation system, which comprises a shell, wherein a PCB (printed circuit board) and a display module are arranged in the shell; the shell comprises an inner side surface close to the eyes of the wearer and forming an opposite closed space with the eyes of the wearer, and an outer side surface opposite to the inner side surface; a heat dissipation system is also arranged in the shell; the heat radiation system at least comprises an air inlet and an air outlet which are arranged on the shell and a fan arranged in the shell; the fan is electrically connected with a circuit on the PCB. According to the scheme, the heat radiation system is arranged in the shell of the head-mounted display, when the circuit on the PCB works, the fan is driven to work together, so that air inside the shell and air outside the shell form air circulation, cold air outside the shell is sucked into the shell from the air inlet and then discharged from the air outlet, heat in the shell is taken away, and the purpose of reducing the working temperature of the head-mounted display is achieved.
Description
Technical Field
The invention relates to the technical field of head-mounted displays, in particular to a head-mounted display with a heat dissipation system.
Background
The head-mounted display guides video image light emitted by a miniature image display (such as a transmission type or reflection type liquid crystal display screen, an organic electroluminescent device and a DMD device) to the pupil of a user through an optical technology, realizes virtual and enlarged images in the near-eye range of the user, and provides visual and visible image, video and text information for the user.
In the existing head-mounted display, a PCB board with a display driving circuit and a power supply circuit is arranged, and a large amount of heat is generated when the head-mounted display works, so that a direct heat source is formed. Meanwhile, in the wearing process of the head-mounted display, the part attached to the face is in seamless attachment with the face of the wearer, so that a relative airtight space is formed between the head-mounted display and the eyes of the wearer, and heat normally emitted by a human body cannot be discharged, and therefore indirect heat sources are accumulated in the airtight space. The heat generated by the two heat sources directly causes discomfort after the eyes wear the video for too long.
Therefore, a reasonable heat dissipation system structure is needed to enable the heat to be discharged as soon as possible, and the comfort level of the head-mounted display is improved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a head-mounted display with a heat dissipation system.
The technical scheme adopted for solving the technical problems is as follows:
the head-mounted display with the heat dissipation system comprises a shell, wherein a PCB and a display module are arranged in the shell; the shell comprises an inner side surface close to the eyes of the wearer and forming an opposite closed space with the eyes of the wearer, and an outer side surface opposite to the inner side surface; a heat dissipation system is also arranged in the shell; the heat dissipation system at least comprises an air inlet and an air outlet which are arranged on the shell and a fan arranged in the shell; the fan is electrically connected with a circuit on the PCB.
The head-mounted display comprises a head-mounted display body, wherein the air inlet comprises a first group of air inlets arranged on the inner side surface and/or comprises a second group of air inlets arranged on the outer side surface.
The head-mounted display provided by the invention has the advantages that the fan is arranged close to the PCB, and the air outlet is arranged on the shell at a position corresponding to the air outlet surface of the fan.
The invention discloses a head-mounted display, wherein a PCB is arranged along a vertical direction relative to a horizontal direction of a human eye sight line, a fan is arranged parallel to the PCB, and the fan is arranged on one side of the PCB away from the human eye direction.
The invention discloses a head-mounted display, wherein a fan is connected with the inside of a shell through a mounting seat, and a baffle for guiding the air outlet flow direction of an air outlet surface of the fan is arranged on the mounting seat.
The invention relates to a head-mounted display, wherein a mounting seat comprises a bottom surface for fixing a fan and a vertical surface for supporting an air inlet surface of the fan; the vertical face is provided with a circular opening which is matched with the air inlet face of the fan in size; the bottom surface is provided with an air outlet guide opening which is convenient for the air flow of the fan to be discharged; the baffle plate is arranged at the air outlet guide opening.
The first group of air inlets comprise two pairs of openings symmetrically arranged on two sides of the binocular position on the inner side surface.
The invention discloses a head-mounted display, wherein the second group of air inlets comprise two pairs of openings symmetrically arranged on two sides of a binocular position on the outer side surface.
The head-mounted display provided by the invention has the advantages that the air inlet surface of the fan faces to one side far away from the PCB, and a gap is reserved between the fan and the PCB.
The invention relates to a head-mounted display, wherein the area size ratio of the first group of air inlets, the second group of air inlets and the air outlets is as follows: 3:2:1.
The invention has the beneficial effects that: through set up cooling system in the head-mounted display casing, when the circuit on the PCB board during operation, drive the fan and work together for casing inside air forms the air current circulation with casing outside air, inhales the casing outside cold air from the air intake to the casing inside, then discharges from the air outlet, takes away the heat in the casing, thereby reaches the purpose that reduces head-mounted display operating temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained by those skilled in the art without inventive effort:
FIG. 1 is a schematic diagram of the overall structure of a head mounted display with a heat dissipation system according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram showing the internal structure of a portion of a head mounted display with a heat dissipation system according to a preferred embodiment of the present invention;
FIG. 3 is a partial structural cross-sectional view of a head mounted display with a heat dissipating system in accordance with a preferred embodiment of the present invention;
FIG. 4 is a schematic view showing the overall structure of a fan and its mounting base of a head mounted display with a heat dissipation system according to a preferred embodiment of the present invention;
fig. 5 is a schematic diagram showing the assembly structure of a fan and its mounting base of a head-mounted display with a heat dissipation system according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
The structure of the head-mounted display with the heat dissipation system according to the preferred embodiment of the invention is shown in fig. 1, 2 and 3, and the head-mounted display comprises a housing 10, wherein a PCB 30 and a display module are arranged in the housing 10, and the display module comprises a display screen 50 and an optical component; the housing 10 includes an inner side 11 adjacent to and forming an opposing closed space with the wearer's eyes, and an outer side 12 opposing the inner side 11; a heat dissipation system is also arranged in the shell 10; the heat dissipation system at least comprises an air inlet and an air outlet arranged on the shell 10 and a fan 40 arranged in the shell 10. According to the embodiment, the heat dissipation system is arranged in the head-mounted display shell 10, when the circuit on the PCB 30 works, the fan is driven to work together, so that air in the shell 10 and air outside the shell 10 form air circulation, cold air outside the shell 10 is sucked into the shell 10 from the air inlet and then is discharged from the air outlet 23, heat in the shell 10 is taken away, and the purpose of reducing the working temperature of the head-mounted display is achieved.
In further embodiments, as shown in fig. 1 and 2, the air intake of the head mounted display includes a first set of air intake openings 21 disposed on the inner side 11 and/or includes a second set of air intake openings 22 disposed on the outer side 12. That is, the intake vent may be any one of the first and second sets of intake vents 21, 22 described above, or preferably both.
When only the first set of air inlets 21 provided on the inner side 11 is included, eye temperature adjustment is more noticeable to the wearer of the head mounted display, but since the inner side 11 is generally smaller in area relative to the outer side, a larger opening cannot be provided, and thus temperature adjustment efficiency is affected.
When only the second set of air inlets 22 provided on the outer side 12 is included, the eye temperature adjustment for the wearer of the head mounted display is relatively weak, but since the outer side 12 has a large area, a large opening can be provided as an air inlet, and thus the internal temperature adjustment for the head mounted display is relatively obvious.
Preferably, as shown in fig. 1 and 2, the first set of air inlets 21 and the second set of air inlets 22 are simultaneously provided, so that the overall temperature adjustment efficiency and the eye temperature adjustment efficiency of the head-mounted display can be simultaneously satisfied.
Specifically, as shown in fig. 1 and 2, the first group of air inlets 21 includes two pairs of openings symmetrically disposed on the inner side 11 at two sides of the binocular position 60. The two pairs of openings can be round openings or strip-shaped openings, and the positions and the shapes of the openings can be reasonably set according to the appearance of the head-mounted display.
Specifically, as shown in fig. 1 and 2, the second air inlet 22 includes two pairs of openings symmetrically disposed on two sides of the binocular position on the outer side. Also, the two pairs of openings may be circular openings or elongated openings; preferably one or more elongated openings; the position and the shape of the opening can be reasonably set according to the requirements of the appearance, the dustproof setting and the like of the head-mounted display.
Preferably, in the above embodiment, as shown in fig. 1 and 2, the ratio of the areas of the first group of air inlets 21, the second group of air inlets 22 and the air outlets 23 is: 3:2:1. That is, the area of the air inlet is larger than that of the air outlet, so that pressure difference is formed on the heat dissipation air duct, and heat dissipation efficiency is improved.
In a further embodiment, as shown in fig. 2 and 3, the fan 40 of the head-mounted display is disposed close to the PCB, and the air outlet 23 is disposed on the housing 10 at a position corresponding to the air outlet surface of the fan 40. Preferably, the air outlet 23 is disposed on the outer side 12 of the housing 10 and located on a side of the outer side 12 facing downward when the head-mounted display is worn. The shape and specific position of the air outlet 23 can be determined according to the design of the head-mounted display, for example, a plurality of circular hole structures are adopted.
Preferably, as shown in fig. 3, the PCB 30 is disposed along a vertical direction with respect to a horizontal direction of a human eye's line of sight, the fan 40 is disposed parallel to the PCB, and the fan is disposed at a side of the PCB away from the human eye's direction.
Further, as shown in fig. 4 and 5, the fan 40 is connected to the inside of the housing 10 through a mounting seat 41, and a baffle 414 for guiding the air flow direction of the air outlet surface of the fan 40 is provided on the mounting seat 41.
Specifically, the mounting base 41 includes a bottom surface 411 for fixing the fan 40 and a vertical surface 412 for supporting an air inlet surface of the fan 40; the vertical face 412 is provided with a circular opening 4121 which is matched with the air inlet face of the fan 40 in size; the bottom surface 411 is provided with an air outlet guide port 415 for facilitating the air flow of the fan 40 to be discharged; the baffle 414 is disposed at the air outlet guide port 415. That is, the mount 41 has both the function of mounting the fixing fan 40 and the air-out air flow guide, ensuring efficient air flow circulation in the head-mounted display housing 10.
Preferably, as shown in fig. 5, a sponge pad 413 is disposed on the mounting seat 41, for reducing noise caused by the operation of the fan 40, so as to achieve the purpose of silence, so as not to affect the use experience of the head-mounted display.
Preferably, the air inlet surface of the fan 40 is installed towards one side far away from the PCB 30, a gap is left between the fan 40 and the PCB 30, and the gap size can be determined according to the size of the internal space of the head-mounted display housing 10, for example, a gap of 1-3mm can be reserved; at the same time, a gap is reserved between the fan 40 and the inner surface of the shell 10, so that air in the shell 10 can enter the fan 40, and air circulation is realized.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (5)
1. A head-mounted display with a heat dissipation system comprises a shell, wherein a PCB and a display module are arranged in the shell; the shell comprises an inner side surface close to the eyes of the wearer and forming an opposite closed space with the eyes of the wearer, and an outer side surface opposite to the inner side surface; a heat dissipation system is also arranged in the shell; the heat dissipation system is characterized by at least comprising an air inlet and an air outlet which are arranged on the shell and a fan arranged in the shell; the fan is electrically connected with a circuit on the PCB; the air inlets comprise a first group of air inlets arranged on the inner side surface and a second group of air inlets arranged on the outer side surface; the fan is arranged close to the PCB, and the air outlet is arranged on the shell and corresponds to the air outlet surface of the fan; the PCB is arranged along a vertical direction relative to the horizontal direction of the eye sight line, the fan is arranged parallel to the PCB, and the fan is arranged on one side of the PCB away from the eye sight line; the fan is connected with the inside of the shell through a mounting seat, and a baffle sheet for guiding the air outlet flow direction of the air outlet surface of the fan is arranged on the mounting seat; the mounting seat comprises a bottom surface for fixing the fan and a vertical surface for supporting an air inlet surface of the fan; the vertical face is provided with a circular opening which is matched with the air inlet face of the fan in size; the bottom surface is provided with an air outlet guide opening which is convenient for the air flow of the fan to be discharged; the baffle plate is arranged at the air outlet guide opening;
the mounting seat has the functions of mounting and fixing the fan and guiding the air flow of the air outlet, so that the efficient air flow circulation in the head-mounted display shell is ensured.
2. The head mounted display of claim 1, wherein the first set of air intakes includes two pairs of openings symmetrically disposed on both sides of the binocular location on the interior side.
3. The head mounted display of claim 1, wherein the second set of air intakes includes two pairs of openings symmetrically disposed on both sides of the binocular location on the outer side.
4. The head mounted display of claim 1, wherein the air inlet surface of the fan is mounted toward a side away from the PCB, and a gap is left between the fan and the PCB.
5. The head mounted display of claim 1, wherein the ratio of the area sizes of the first set of air inlets, the second set of air inlets, and the air outlets is: 3:2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913809.2A CN106646871B (en) | 2016-10-20 | 2016-10-20 | Head-mounted display with heat radiation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913809.2A CN106646871B (en) | 2016-10-20 | 2016-10-20 | Head-mounted display with heat radiation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106646871A CN106646871A (en) | 2017-05-10 |
| CN106646871B true CN106646871B (en) | 2024-03-12 |
Family
ID=58856170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610913809.2A Active CN106646871B (en) | 2016-10-20 | 2016-10-20 | Head-mounted display with heat radiation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106646871B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3410174B1 (en) * | 2017-05-31 | 2021-09-01 | Facebook Technologies, LLC | Head mount device having impact absorbing walls |
| US10466740B2 (en) * | 2017-05-31 | 2019-11-05 | Facebook Technologies, Llc | Metal frame of head mount device having impact absorbing walls |
| CN206975323U (en) * | 2017-06-30 | 2018-02-06 | 深圳市大疆创新科技有限公司 | Head-mounted display apparatus |
| WO2019050782A1 (en) * | 2017-09-07 | 2019-03-14 | Apple Inc. | Thermal regulation for head-mounted display |
| CN107678160B (en) * | 2017-10-16 | 2020-04-17 | 温州明澈眼镜科技有限公司 | Heat dissipation type VR glasses based on thing networking |
| CN107703635A (en) * | 2017-11-17 | 2018-02-16 | 重庆创通联达智能技术有限公司 | A kind of VR glasses and its radiator structure |
| CN110720073B (en) * | 2018-10-30 | 2022-03-25 | 深圳市大疆创新科技有限公司 | Head-mounted electronic equipment |
| CN109445100A (en) * | 2018-11-30 | 2019-03-08 | 潍坊歌尔电子有限公司 | Head-mounted display |
| CN111830710B (en) * | 2019-04-19 | 2022-06-24 | 苹果公司 | Head-mounted device |
| US11758702B2 (en) * | 2019-04-30 | 2023-09-12 | Apple Inc. | Noise mitigation for head-mounted device |
| JP7298393B2 (en) * | 2019-08-29 | 2023-06-27 | セイコーエプソン株式会社 | wearable display |
| CN112099238B (en) * | 2020-10-30 | 2022-07-08 | 歌尔光学科技有限公司 | Head-mounted display equipment and front end air cooling heat dissipation structure thereof |
| CN113031273B (en) * | 2021-03-16 | 2023-01-20 | 歌尔股份有限公司 | Head-mounted display device and heat dissipation mechanism thereof |
| CN114200677B (en) * | 2021-12-16 | 2023-04-11 | 南京奇元科技有限公司 | A circulation heat abstractor for wear-type VR equipment |
| CN114371558A (en) * | 2022-01-27 | 2022-04-19 | 京东方科技集团股份有限公司 | Heat abstractor and wear display device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570697A (en) * | 2003-07-22 | 2005-01-26 | 吕兴增 | Double refraction image display device |
| FR2944416A1 (en) * | 2009-04-17 | 2010-10-22 | Thales Sa | Helmet for pilot of aircraft e.g. weapon airplane or helicopter, has conduit permitting transmission of air flow from ventilation unit towards evacuation unit, where air flow cools evacuation unit by natural or forced thermal convection |
| JP2014153578A (en) * | 2013-02-11 | 2014-08-25 | Nippon Seiki Co Ltd | Head-up display |
| KR200474766Y1 (en) * | 2014-05-20 | 2014-10-15 | 이희철 | Helmet with anion wind generator module |
| CN104991344A (en) * | 2015-07-08 | 2015-10-21 | 成都梦工厂网络信息有限公司 | Virtual reality helmet equipment easy to cool |
| CN105866951A (en) * | 2016-05-20 | 2016-08-17 | 樊强 | Head-up display and display screen thereof |
| CN105934134A (en) * | 2015-02-27 | 2016-09-07 | 三星电子株式会社 | Electronic device having heat radiator |
| CN105919212A (en) * | 2016-05-25 | 2016-09-07 | 北京易迈医疗科技有限公司 | Medical helmet and medical personal protection system |
| CN105954877A (en) * | 2016-07-18 | 2016-09-21 | 小派科技（上海）有限责任公司 | Head-mounted display device |
| CN205958846U (en) * | 2016-07-29 | 2017-02-15 | 合肥宝龙达信息技术有限公司 | VRAR helmet that compact is wireless |
| CN206096637U (en) * | 2016-10-20 | 2017-04-12 | 深圳纳德光学有限公司 | Wear display with cooling system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL193094B1 (en) * | 2004-11-15 | 2007-01-31 | Adb Polska Sp | Pcb board with forced air circulation and device with the pcb board with forced air circulation |
| DE202014006891U1 (en) * | 2014-07-02 | 2014-10-22 | Christian Stroetmann | data glasses |
-
2016
- 2016-10-20 CN CN201610913809.2A patent/CN106646871B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570697A (en) * | 2003-07-22 | 2005-01-26 | 吕兴增 | Double refraction image display device |
| FR2944416A1 (en) * | 2009-04-17 | 2010-10-22 | Thales Sa | Helmet for pilot of aircraft e.g. weapon airplane or helicopter, has conduit permitting transmission of air flow from ventilation unit towards evacuation unit, where air flow cools evacuation unit by natural or forced thermal convection |
| JP2014153578A (en) * | 2013-02-11 | 2014-08-25 | Nippon Seiki Co Ltd | Head-up display |
| KR200474766Y1 (en) * | 2014-05-20 | 2014-10-15 | 이희철 | Helmet with anion wind generator module |
| CN105934134A (en) * | 2015-02-27 | 2016-09-07 | 三星电子株式会社 | Electronic device having heat radiator |
| CN104991344A (en) * | 2015-07-08 | 2015-10-21 | 成都梦工厂网络信息有限公司 | Virtual reality helmet equipment easy to cool |
| CN105866951A (en) * | 2016-05-20 | 2016-08-17 | 樊强 | Head-up display and display screen thereof |
| CN105919212A (en) * | 2016-05-25 | 2016-09-07 | 北京易迈医疗科技有限公司 | Medical helmet and medical personal protection system |
| CN105954877A (en) * | 2016-07-18 | 2016-09-21 | 小派科技（上海）有限责任公司 | Head-mounted display device |
| CN205958846U (en) * | 2016-07-29 | 2017-02-15 | 合肥宝龙达信息技术有限公司 | VRAR helmet that compact is wireless |
| CN206096637U (en) * | 2016-10-20 | 2017-04-12 | 深圳纳德光学有限公司 | Wear display with cooling system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106646871A (en) | 2017-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106646871B (en) | Head-mounted display with heat radiation system | |
| CN107995957B (en) | Head-mounted display device | |
| ES2808061T3 (en) | Outdoor display apparatus with improved temperature stability | |
| CN206096637U (en) | Wear display with cooling system | |
| EP2169453A1 (en) | Display device | |
| EP2169454A2 (en) | Display device | |
| EP2169451A2 (en) | Display device | |
| JP2021117428A (en) | Display device | |
| CN110376745A (en) | Convenient for the VR glasses of heat dissipation | |
| JP5479215B2 (en) | Display device | |
| EP2169452A1 (en) | Display device | |
| CN210155483U (en) | Brightness-adjustable side-entering type backlight module | |
| CN104238244B (en) | Image projection device | |
| CN106297579A (en) | A kind of HUD and display screen thereof | |
| US20180267580A1 (en) | Housing assembly for a computer system and computer system | |
| CN216087366U (en) | Internet advertisement issue machine | |
| CN212259091U (en) | Novel quick visual positioning sensor | |
| CN219370141U (en) | Efficient heat dissipation AR or VR device | |
| WO2019163555A1 (en) | Image display device | |
| CN220154784U (en) | Projector optical machine | |
| CN220188845U (en) | Off-axis projector with sealing and heat dissipation functions | |
| CN214278605U (en) | Novel heat radiation structure of projector | |
| CN204765539U (en) | Novel medical endoscope all -in -one host computer | |
| CN204462590U (en) | The radiator structure of display module | |
| CN218888915U (en) | Head-mounted display cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |