CN105403998A - Adjustable reflector compensation distortion apparatus, and distortion compensation method of splicing display screen - Google Patents

Adjustable reflector compensation distortion apparatus, and distortion compensation method of splicing display screen Download PDF

Info

Publication number
CN105403998A
CN105403998A CN201510934099.7A CN201510934099A CN105403998A CN 105403998 A CN105403998 A CN 105403998A CN 201510934099 A CN201510934099 A CN 201510934099A CN 105403998 A CN105403998 A CN 105403998A
Authority
CN
China
Prior art keywords
catoptron
electronic rotation
distortion
remote control
adjustable
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.)
Granted
Application number
CN201510934099.7A
Other languages
Chinese (zh)
Other versions
CN105403998B (en
Inventor
刘海勇
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.)
Vtron Technologies Ltd
Original Assignee
Vtron Technologies 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 Vtron Technologies Ltd filed Critical Vtron Technologies Ltd
Priority to CN201510934099.7A priority Critical patent/CN105403998B/en
Publication of CN105403998A publication Critical patent/CN105403998A/en
Application granted granted Critical
Publication of CN105403998B publication Critical patent/CN105403998B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0025Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration

Abstract

The invention relates to an adjustable reflector compensation distortion apparatus, and a distortion compensation method of a splicing display screen. The apparatus comprises a driving motor module, a wireless remote control module and a corner deformation adjustable reflector, and further comprises n electric rotary rods and at least n electric transmission ends, wherein n is a positive integer not smaller than 12; each edge and each corner of the reflector are each provided with provided with one electric rotary rod, and each electric rotary rod is corresponding to one of the electric transmission rods; and the driving motor module is connected with the wireless remote control module and each electric transmission end. By using the scheme provided by the invention, residual distortion caused by an ultrathin lens can be effectively compensated.

Description

Adjustable catoptron compensates the distortion compensation method of distortion device and mosaic display screen
Technical field
The present invention relates to spliced display unit Installation and Debugging technical field, particularly relate to the distortion compensation method that a kind of adjustable catoptron compensates distortion device and mosaic display screen.
Background technology
In recent years, LED mosaic display screen (combination) technology constantly perfect, the market of indoor projection machine combination by means of the large large impact of advantage such as brightness, color, volume be little, if projector will keep the status of the indoor combination of main flow, must solve the low and bulky difficult problem of brightness, therefore projector's display unit must towards highlighted, ultra-thin two general orientation development.
The present solution in highlighted direction is that light source is upgraded to laser; And ultra-thin direction needs to redesign ultrashort zoom lens, if the thickness of traditional 70 inches of display units is 80 centimetres, thickness to be shortened to original half now, namely 40 centimetres, then projector lens light path must reduce half, so optical design freedom is just much little, and balance and elimination aberration become abnormal difficult, and the residual distortion of ultrashort zoom lens has had a strong impact on the joining quality of adjacent display cell picture.
Summary of the invention
Based on this, the object of the invention is to the problem for ultra-thin camera lens residual distortion, provide a kind of adjustable catoptron to compensate the distortion compensation method of distortion device method and mosaic display screen, the residual distortion that ultra-thin camera lens causes can be compensated.
Object of the present invention is achieved through the following technical solutions:
A kind of adjustable catoptron compensates distortion device, comprises the catoptron that drive motor module, wireless remote control module and corner deformation are adjustable, also comprises at least n electronic rotation bar and at least n electo-kinetic transport end, wherein, n be not less than 12 positive integer;
Be respectively arranged with described electronic rotation bar on each bar limit of described catoptron He on each angle, each described electronic rotation bar respectively electo-kinetic transport end described with is corresponding;
Described drive motor module is connected with described wireless remote control module and each described electo-kinetic transport end respectively.
According to the technical scheme of the invention described above device, it comprises drive motor module, wireless remote control module and the adjustable catoptron of corner deformation, also comprise at least n electronic rotation bar and at least n electo-kinetic transport end, and be respectively arranged with described electronic rotation bar on each bar limit of described catoptron He on each angle, each described electronic rotation bar respectively electo-kinetic transport end described with is corresponding, described drive motor module is connected with described wireless remote control module and each described electo-kinetic transport end respectively, because the corner deformation of catoptron is adjustable, and the corner of catoptron is respectively arranged with electronic rotation bar, each described electronic rotation bar connects again drive motor module respectively electo-kinetic transport end with one is corresponding, described drive motor module is connected with wireless remote control module, therefore, when there is picture distortion in certain position on display unit, by described wireless remote control module, described drive motor module controls the electo-kinetic transport end corresponding with this distorted position and works, the deformation of catoptron relevant position is changed, to compensate picture distortion, adjustable catoptron of the present invention is adopted to compensate distortion device, effectively can compensate the residual distortion that ultra-thin camera lens causes.
A distortion compensation method for mosaic display screen, comprise a set of adjustable catoptron as above in each display unit of mosaic display screen respectively and compensate distortion device, described distortion compensation method comprises the steps:
Described mosaic display screen is got test circle picture;
Adjust the six-axial adjustment frame of each described display unit to make the test circle picture alignment on described mosaic display screen;
According to the distorted position of the test circle picture on current display unit, control the described electronic rotation bar work corresponding with described distorted position by the described wireless remote control module of described current display unit, described drive motor module and distort to compensate.
According to the technical scheme of the invention described above method, comprise a set of adjustable catoptron described above in each display unit of mosaic display screen respectively and compensate distortion device, when utilizing such mosaic display screen to carry out distortion compensation, the mosaic display screen comprising multiple display unit is got test circle picture; Adjust the six-axial adjustment frame of each described display unit to make the test circle picture alignment on described mosaic display screen; According to the distorted position on display unit, control the electo-kinetic transport end corresponding with this distorted position by described wireless remote control module, described drive motor module, effectively can compensate the residual distortion that ultra-thin camera lens causes, improve debugging efficiency.
Accompanying drawing explanation
Fig. 1 is display unit schematic diagram;
Fig. 2 adjustable catoptron of the present invention compensates the structural representation of distortion device embodiment;
Fig. 3 is wireless remote control module in Fig. 2 refined structure schematic diagram wherein in an embodiment;
Fig. 4 is remote control panel in Fig. 3 refined structure schematic diagram in an embodiment wherein;
Fig. 5 is traditional display unit distortion schematic diagram;
Fig. 6 is ultra-thin display element distortion schematic diagram.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is further elaborated, but implementation of the present invention is not limited thereto.
As shown in Figure 1, traditional combination projection display unit comprises catoptron 101, projector 102, six-axial adjustment frame 103, screen 104 4 major part; The catoptron of traditional display unit is made up of one piece of common trapezoidal glass reflector merely, this catoptron is a major challenge for short focus projector picture adjustment, consuming time and projector's picture cannot be alignd with adjacent display cell, that is, cannot adjacent display frame piece be controlled within 1mm, i.e. seamless state.
Shown in Figure 2, for adjustable catoptron of the present invention compensates the structural representation of distortion device embodiment.
As shown in Figure 2, adjustable catoptron in the present embodiment compensates distortion device, comprise the catoptron 213 that drive motor module 214, wireless remote control module 216 and corner deformation are adjustable, also comprise at least n electronic rotation bar 201 ~ 212 and at least n electo-kinetic transport end 215, wherein, n be not less than 12 positive integer;
Be respectively arranged with described electronic rotation bar on each bar limit of catoptron 213 He on each angle, each described electronic rotation bar respectively electo-kinetic transport end described with is corresponding;
Drive motor module 214 is connected with wireless remote control module 216 and each electo-kinetic transport end 215 respectively, the line in Fig. 2 between not shown drive motor module 214 and each electo-kinetic transport end 215.
To be n be shown in figure 2 12 situation, namely comprise 12 electronic rotation bars and 12 electo-kinetic transport ends altogether, but be not limited to this.
Consider that electronic rotation bar set on each bar limit of catoptron 213 is more, the compensation of residual distortion is meticulousr, effect is better, but also consider that electronic rotation bar is more, the structure that adjustable catoptron compensates distortion device is also more complicated, and mode of operation is also more complicated, consider the complexity of compensation effect and structure, mode of operation, mode of preferably compromising is that n is 12, and each bar limit of catoptron 213 arranges two electronic rotation bars respectively.In order to debug effect more, wherein in an embodiment, two electronic rotation bars on each bar limit of catoptron 213 are arranged at three/strong point, 2/3rds length of side places of corresponding sides respectively.
Consider that catoptron 213 needs corner deformation adjustable, in order to make corner deformation adjustable, not easily broken when deformation adjusts again, one preferably mode is, catoptron 213 is aluminum metallic-membrane plating reflector.
Wherein in an embodiment, each electronic rotation bar 201 ~ 212 can be adsorbed on catoptron 213 respectively by plastic suction disc, the mode of being adsorbed by plastic suction disc to be arranged on catoptron 213, the active area of each electronic rotation bar 201 ~ 212 pairs of catoptrons 213 can be made large as far as possible, deformation is produced under being beneficial to any one or the effect to do of catoptron 213 in electronic rotation bar 201 ~ 212, to compensate distortion, but it should be noted that mode catoptron 213 being arranged each electronic rotation bar 201 ~ 212 is not limited thereto.
Usually, as shown in Figure 3, above-mentioned wireless remote control module 216 comprises signal receiver 303, signal projector 302, remote control panel 301, remote control panel 301 is connected with signal projector 302, signal receiver 303 is connected with drive motor module 214, wherein, signal receiver 303, signal projector 302 can be infrared remote receiver, infrared transmitter respectively.
Wherein in an embodiment, as shown in Figure 4, remote control panel 301 is provided with the button corresponding respectively with each electronic rotation bar 201 ~ 212, such as, a left side 1 ~ left 4 buttons in Fig. 4, A ~ D button, right 5 ~ right 8 buttons, for the ease of operation, for the position of each electronic rotation bar 201 ~ 212 in Fig. 2, the corresponding relation of each button and each electronic rotation bar 201 ~ 212 under this illustrates, A button, B button respectively should with 209,210 electronic rotation pole pairs; C button, D button are corresponding with electronic rotation bar 211, electronic rotation bar 212 respectively; Left 1 button, left 2 buttons, left 3 buttons, left 4 buttons are corresponding with electronic rotation bar 201, electronic rotation bar 202, electronic rotation bar 203, electronic rotation bar 204 respectively; Right 5 buttons, right 6 buttons, right 7 buttons, right 8 buttons are corresponding with 205 electronic rotation bars, 206 electronic rotation bars, 207 electronic rotation bars, electronic rotation bar 208 respectively; But corresponding relation is not limited thereto, position and the set-up mode of each button are also not limited thereto
Wherein in an embodiment, as shown in Figure 4, remote control panel 301 can also be provided with the button opened for controlling described drive motor modular power source and break, ON button in Fig. 4 is the button opened for controlling described drive motor modular power source, OFF button in Fig. 4 is for controlling the disconnected button of described drive motor modular power source, remote control panel 301 can also be provided with the button for starting or close described drive motor module, the button that stops/start in Fig. 4 is button for starting or close described drive motor module.
Accordingly, adjustable catoptron according to above-mentioned the present embodiment compensates distortion device, it comprises drive motor module, wireless remote control module and the adjustable catoptron of corner deformation, also comprise at least n electronic rotation bar and at least n electo-kinetic transport end, and be respectively arranged with described electronic rotation bar on each bar limit of described catoptron He on each angle, each described electronic rotation bar respectively electo-kinetic transport end described with is corresponding, described drive motor module is connected with described wireless remote control module and each described electo-kinetic transport end respectively, because the corner deformation of catoptron is adjustable, and the corner of catoptron is respectively arranged with electronic rotation bar, each described electronic rotation bar connects again described drive motor module respectively described electo-kinetic transport end with one is corresponding, described drive motor module is connected with wireless remote control module, therefore, when there is picture distortion in certain position on display unit, by described wireless remote control module, described drive motor module controls the electo-kinetic transport end corresponding with this distorted position and works, the deformation of catoptron relevant position is changed, to compensate picture distortion, adjustable catoptron of the present invention is adopted to compensate distortion device, effectively can compensate the residual distortion that ultra-thin camera lens causes.
Adjustable catoptron according to the invention described above compensates distortion device, the present invention also provides a kind of distortion compensation method of mosaic display screen, and the adjustable catoptron comprised respectively in each display unit of described mosaic display screen as above described in any one embodiment compensates distortion device; The distortion compensation method of the display screen of the present embodiment comprises step: on described mosaic display screen, get test circle picture; Adjust the six-axial adjustment frame of each described display unit to make the test circle picture alignment on described mosaic display screen; According to the distorted position of the test circle picture on current display unit, control the described electronic rotation bar work corresponding with described distorted position by the described wireless remote control module of described current display unit, described drive motor module and distort to compensate;
Wherein, adjust the six-axial adjustment frame of each described display unit to make the test circle picture alignment on described mosaic display screen, the size of the center alignment and test circle picture that pay particular attention to test circle picture will match with screen; Six-axial adjustment frame adjustment mode can adopt existing mode, does not repeat them here.
The described electronic rotation bar work corresponding with described distorted position is controlled to compensate the process distorted by the described wireless remote control module of described current display unit, described drive motor module for the ease of understanding, below this is described in detail, it should be noted that, compensate distortion device for the adjustable catoptron in Fig. 2 in following description, and be with the remote control panel shown in Fig. 3, and the corresponding relation of button described above and electronic rotation bar is that example is described, but these are not construed as limiting the invention.
When distorting greatly appears in the upper left corner of the test circle picture on current display unit, open drive motor module 214, by adjusting left 1 button and left 2 buttons work by electronic rotation bar 201, electronic rotation bar 202, making catoptron 213 upper left corner bend similar distortion shape for compensating the distortion in the upper left corner of the test circle picture on current display unit, finally reaching the rectification of corner distortion; When distorting greatly appears in the lower left corner of the test circle picture on current display unit, open drive motor module 214, by adjusting left 3 buttons and left 4 buttons by electronic rotation bar 203, the work of electronic rotation bar 204 bar, making catoptron 213 lower left corner bend similar distortion shape for compensating the distortion in the lower left corner of the test circle picture on current display unit, finally reaching the rectification of corner distortion; When distorting greatly appears in the upper right corner of the test circle picture on current display unit, open drive motor module 214, by adjusting right 5 buttons and right 6 buttons work by electronic rotation bar 205, electronic rotation bar 206, making catoptron 213 upper right corner bend similar distortion shape for compensating the distortion in the upper right corner of the test circle picture on current display unit, finally reaching the rectification of corner distortion; When distorting greatly appears in the lower right corner of the test circle picture on current display unit, open drive motor module 214, by adjusting right 7 buttons and right button works by electronic rotation bar 207, electronic rotation bar 208, making catoptron 213 lower right corner bend similar distortion shape for compensating the distortion in the lower right corner of the test circle picture on current display unit, finally reaching the rectification of corner distortion.
It should be noted that, in the foregoing description, term " lower-left ", " bottom right ", " upper left ", " upper right " are based on (namely based on tester stand in screen from right flank Fig. 1 shown in display unit) of test man towards the screen of display unit, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
Concrete example
In above-described embodiment, the distortion compensation method of mosaic display screen and adjustable catoptron compensate distortion device and also can be used for normal display units, this normal display units refers to that the projector lens in display unit is made up of spheric glass completely, therefore distort shape Conventional distortion as shown in Figure 5, central shaft symmetrical, this distortion shape comprises pincushion distortion, and this pincushion distortion 401 comprises the space between screen 402 and graphic picture 403; Also comprise barrel-type distortion 404, this barrel-type distortion 404 comprises the space between screen 405 and graphic picture 406, can by adjustment six-axial adjustment frame 103 by the state of whole graphic picture furnishing Fig. 5, then being controlled the electronic rotation bar 209 ~ 212 of catoptron 213 drift angle by the A button of wireless remote control module, B button, C button, D button respectively, allowing 2 catoptron 213 corner bow for correcting pincushion distortion and barrel-type distortion.The method and device can eliminate the distortion of this generic central rotational symmetry fast, and debuging of mosaic display screen can be carried out smoothly and save debug time.
In above-described embodiment, the distortion compensation method of mosaic display screen and adjustable catoptron compensate distortion device and are more better than being applied in ultra-thin display unit, this ultra-thin display unit comprises short-focus mirror hair style projector, this projector comprises aspherical lens or curve lens, directly cause large residual distortion cannot be able to better elimination, and spaces compact leaves six-axial adjustment frame 103 debugging for apart from very little in ultra-thin display unit, therefore when the amount of distortion of projector is greater than 0.5%, traditional approach can not meet seamless debugging, just there will be display element distortion schematic diagram as ultra-thin in Fig. 6, go back remnants after reaching the debugging limit of six-axial adjustment frame 103 and have asymmetric formula amount of distortion: larger class pincushion distortion 501 is left on the left side, by a left side 1 button of wireless remote control module 216, left 2 buttons, left 3 buttons, left 4 buttons control electronic rotation bar 201 respectively, electronic rotation bar 202, electronic rotation bar 203, electronic rotation bar 204 electronic rotation bar bends for correcting this larger class pincushion distortion by catoptron 213 left side, larger class barrel-type distortion 502 is left on the right, controls electronic rotation bar 205, electronic rotation bar 206, electronic rotation bar 207, electronic rotation bar 208 electronic rotation bar respectively by bending for correcting this larger class barrel-type distortion on the right of catoptron 213 by the right side 5 button of wireless remote control module 216, right 6 buttons, right 7 buttons, right 8 buttons, larger class pincushion distortion 503 is left in top, controls electronic rotation bar 201 respectively, electronic rotation bar 202, electronic rotation bar 205, electronic rotation bar 206 allow catoptron 213 aluminum top bend for correcting this larger class pincushion distortion by a left side 1 button of wireless remote control module 216, left 2 buttons, right 5 buttons, right 6 buttons, 504 leave larger class barrel-type distortion below, control electronic rotation bar 203 respectively, electronic rotation bar 204, electronic rotation bar 207, electronic rotation bar 208 allow catoptron 213 catoptron bend below for correcting this larger class barrel-type distortion by left 3 buttons of wireless remote control module 216, left 4 buttons, right 7 buttons, right 8 buttons.
In above-described embodiment, the distortion compensation method of mosaic display screen and adjustable catoptron compensate distortion device, can reach traditional display unit be beyond one's reach picture debugging effect, can allow simultaneously and spell wall debugging efficiency and to improve thus cost-saving, allow the distortional strain energy of ultra-thin display unit better be eliminated and reach seamless spliced effect.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this instructions is recorded.
The above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be construed as limiting the scope of the patent.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (9)

1. an adjustable catoptron compensates distortion device, it is characterized in that, comprise the catoptron that drive motor module, wireless remote control module and corner deformation are adjustable, also comprise at least n electronic rotation bar and at least n electo-kinetic transport end, wherein, n be not less than 12 positive integer;
Be respectively arranged with described electronic rotation bar on each bar limit of described catoptron He on each angle, each described electronic rotation bar respectively electo-kinetic transport end described with is corresponding;
Described drive motor module is connected with described wireless remote control module and each described electo-kinetic transport end respectively.
2. adjustable catoptron according to claim 1 compensates distortion device, and it is characterized in that, n is 12, each bar limit of described catoptron is arranged respectively two described electronic rotation bars.
3. adjustable catoptron according to claim 2 compensates distortion device, and it is characterized in that, two described electronic rotation bars on each bar limit of described catoptron are arranged at three/strong point, 2/3rds length of side places of corresponding sides respectively.
4. adjustable catoptron according to claim 1 compensates distortion device, and it is characterized in that, described catoptron is aluminum metallic-membrane plating reflector.
5. adjustable catoptron according to claim 1 compensates distortion device, and it is characterized in that, each described electronic rotation bar is adsorbed on described catoptron respectively by plastic suction disc.
6. adjustable catoptron according to claim 1 compensates distortion device, it is characterized in that, described wireless remote control module comprises signal receiver, signal projector, remote control panel respectively, described remote control panel is connected with described signal projector, described signal receiver and described drive motor model calling.
7. adjustable catoptron according to claim 6 compensates distortion device, it is characterized in that, described remote control panel is provided with the button corresponding respectively with each described electronic rotation bar.
8. compensate distortion device according to claim adjustable catoptron according to claim 7, it is characterized in that, described remote control panel is also provided with the button opened for controlling described drive motor modular power source and break, described remote control panel is provided with the button for starting or close described drive motor module.
9. a distortion compensation method for mosaic display screen, is characterized in that, the adjustable catoptron comprised respectively in each display unit of mosaic display screen as described in one of claim 1 to 8 compensates distortion device, and distortion compensation method comprises the steps:
Described mosaic display screen is got test circle picture;
Adjust the six-axial adjustment frame of each described display unit to make the test circle picture alignment on described mosaic display screen;
According to the distorted position of the test circle picture on current display unit, control the described electronic rotation bar work corresponding with described distorted position by the described wireless remote control module of described current display unit, described drive motor module and distort to compensate.
CN201510934099.7A 2015-12-14 2015-12-14 The distortion compensation method of adjustable speculum compensation distortion device and mosaic display screen Active CN105403998B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510934099.7A CN105403998B (en) 2015-12-14 2015-12-14 The distortion compensation method of adjustable speculum compensation distortion device and mosaic display screen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510934099.7A CN105403998B (en) 2015-12-14 2015-12-14 The distortion compensation method of adjustable speculum compensation distortion device and mosaic display screen

Publications (2)

Publication Number Publication Date
CN105403998A true CN105403998A (en) 2016-03-16
CN105403998B CN105403998B (en) 2018-08-28

Family

ID=55469586

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510934099.7A Active CN105403998B (en) 2015-12-14 2015-12-14 The distortion compensation method of adjustable speculum compensation distortion device and mosaic display screen

Country Status (1)

Country Link
CN (1) CN105403998B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116312269A (en) * 2023-02-15 2023-06-23 深圳壹视光电有限公司 LED display module and image compensation method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10307202A (en) * 1997-05-09 1998-11-17 Fujitsu General Ltd Reflection mirror for projector and optical distortion adjusting system
JP2004309529A (en) * 2003-04-02 2004-11-04 Mitsubishi Electric Corp Video distortion correction mechanism for back projection type video display device and back projection type video display device
CN2678283Y (en) * 2003-12-13 2005-02-09 深圳创维-Rgb电子有限公司 Digital optical display rear-projector with mirror gravity compensation device
JP2008129271A (en) * 2006-11-20 2008-06-05 Seiko Epson Corp Rear projector
CN101308320A (en) * 2007-05-18 2008-11-19 三菱电机株式会社 Image distortion correcting mechanism and back-projection image display device
CN202904208U (en) * 2012-11-02 2013-04-24 北京环宇蓝博科技有限公司 Splicing wall reflector structure
CN204759721U (en) * 2015-09-06 2015-11-11 黄世勇 Wireless remote control switch of removable panel

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10307202A (en) * 1997-05-09 1998-11-17 Fujitsu General Ltd Reflection mirror for projector and optical distortion adjusting system
JP2004309529A (en) * 2003-04-02 2004-11-04 Mitsubishi Electric Corp Video distortion correction mechanism for back projection type video display device and back projection type video display device
CN2678283Y (en) * 2003-12-13 2005-02-09 深圳创维-Rgb电子有限公司 Digital optical display rear-projector with mirror gravity compensation device
JP2008129271A (en) * 2006-11-20 2008-06-05 Seiko Epson Corp Rear projector
CN101308320A (en) * 2007-05-18 2008-11-19 三菱电机株式会社 Image distortion correcting mechanism and back-projection image display device
CN202904208U (en) * 2012-11-02 2013-04-24 北京环宇蓝博科技有限公司 Splicing wall reflector structure
CN204759721U (en) * 2015-09-06 2015-11-11 黄世勇 Wireless remote control switch of removable panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116312269A (en) * 2023-02-15 2023-06-23 深圳壹视光电有限公司 LED display module and image compensation method
CN116312269B (en) * 2023-02-15 2023-09-15 深圳壹视光电有限公司 LED display module and image compensation method

Also Published As

Publication number Publication date
CN105403998B (en) 2018-08-28

Similar Documents

Publication Publication Date Title
CN204270006U (en) Linear pattern DLP miniature projector
CN206282067U (en) A kind of periscopic automatic focusing mechanism
CN107885017A (en) Projector equipment and system
WO2018196583A1 (en) Display device and control method thereof
CN106444223A (en) Periscopic double auto-focusing device
CN203397547U (en) Multifunctional intelligent interactive teaching machine
CN102122076A (en) 3D glasses and 3D display system
CN105403998A (en) Adjustable reflector compensation distortion apparatus, and distortion compensation method of splicing display screen
CN102621796B (en) Three-dimensional display device with adaptive aperture diaphragms and method
CN103091959A (en) Light guiding module and projection device provided with light guiding module
CN102385229A (en) Video projector
CN206282068U (en) A kind of double automatic focusing mechanisms of periscopic
CN102262843B (en) Dot matrix display conversion device
CN107707696A (en) A kind of folding camera head mould group and mobile terminal
CN102036042B (en) Laser television
CN211086899U (en) Bidirectional projection device
CN103941399A (en) Head-worn image amplification device
CN203981975U (en) A kind of near-to-eye ray machine
CN208060921U (en) Projection device and system
CN205428451U (en) Eliminate poor laser large screen display device of colour temperature
CN204883147U (en) LCD projector
CN203786402U (en) Head-mounted image-magnifying device
CN106444224A (en) Periscopic automatic focusing device
CN206421139U (en) A kind of two acts of projecting apparatus of a machine
CN206725833U (en) A kind of discrete surface deformable reflective device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant