CN114325919B - Correction device - Google Patents
Correction device Download PDFInfo
- Publication number
- CN114325919B CN114325919B CN202011058083.1A CN202011058083A CN114325919B CN 114325919 B CN114325919 B CN 114325919B CN 202011058083 A CN202011058083 A CN 202011058083A CN 114325919 B CN114325919 B CN 114325919B
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- China
- Prior art keywords
- screen
- light guide
- guide plate
- correction device
- adjustment
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 38
- 238000001514 detection method Methods 0.000 claims description 20
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000000605 extraction Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The present invention relates to a correction device for correcting an angular offset between a screen and a light guide plate, comprising: a substrate on which the light guide plate and the screen can be positioned; a first detecting member configured to be capable of contacting a first side of the screen to detect an angular displacement of the screen in a first direction with respect to the light guide plate; a first adjustment member configured to abut a second side of the screen opposite the first side and rotate the screen in a second direction opposite the first direction to correct an angular offset of the screen in the first direction.
Description
Technical Field
The present invention relates to a correction device for correcting an angular offset between a screen and a light guide plate in a 3D display device.
Background
In the 3D display device, if a deviation occurs when the light guide plate and the screen are assembled, the 3D display effect is abnormal. In the prior art, it is generally necessary to disassemble the light guide plate and the screen to correct the deviation of both, which results in that the disassembled light guide plate cannot be reused. After correction, the disassembled screen and a new light guide plate need to be reassembled. This results in a light guide plate material that cannot be reused, high maintenance costs, and increased risk factors for reassembly.
Disclosure of Invention
The present invention provides a correction apparatus for correcting an angular offset between a screen and a light guide plate, comprising: a substrate on which the light guide plate and the screen can be positioned; a first detecting member configured to be capable of contacting a first side of the screen to detect an angular displacement of the screen in a first direction with respect to the light guide plate; a first adjustment member configured to abut a second side of the screen opposite the first side and rotate the screen in a second direction opposite the first direction to correct an angular offset of the screen in the first direction.
Advantageously, the correction device further comprises: a second detecting member configured to be capable of contacting the first side of the screen to detect an angular shift of the screen in a second direction with respect to the light guide plate; and a second adjustment member configured to abut a second side of the screen and rotate the screen in the first direction to correct an angular offset of the screen in the second direction.
Advantageously, the correction device further comprises a positioning member provided on the substrate, the light guide plate being positioned on the substrate by the positioning member.
Advantageously, the first detection member comprises a first detection head configured to be in contact with the first side of the screen and to move under the pushing of the first side, and a first indicator configured to detect the displacement amount of the first detection head.
Advantageously, the second detection member comprises a second detection head configured to be in contact with the first side of the screen and to move under the pushing of the first side, and a second indicator configured to detect the displacement amount of the second detection head.
Advantageously, the first adjustment member comprises a first adjustment head and a first actuator, the first adjustment head being configured to contact the second side of the screen and rotate the screen in the second direction under the influence of the first actuator.
Advantageously, the second adjustment member comprises a second adjustment head and a second actuator, the second adjustment head being configured to contact a second side of the screen and rotate the screen in the first direction under the influence of the second actuator.
Advantageously, the first detecting member, the first adjusting member, the second detecting member and the second adjusting member are differential heads.
Advantageously, the adhesive is arranged between the screen and the light guide plate, and the correction device further comprises heating means arranged in the substrate, capable of heating the light guide plate, thereby liquefying the adhesive between the light guide plate and the screen.
Advantageously, the heating device comprises a heating platform and a heating tube, the heating tube being arranged in the heating platform, the light guide plate being arranged on the heating platform.
Advantageously, the heating tube has a U-shaped arrangement to uniformly heat the adhesive on the light guide plate.
Advantageously, the heating device is further provided with a vacuum pumping port for connecting to an external vacuum pumping device to adsorb the light guide plate on the heating platform by vacuum adsorption.
Advantageously, the heating device further comprises a sealing ring arranged on the heating tube to provide a seal when the vacuum is drawn.
Drawings
The advantages and objects of the present invention will be better understood from the following detailed description of the preferred embodiments of the invention taken in conjunction with the accompanying drawings. To better illustrate the relationship of the various components in the figures, the figures are not drawn to scale. In the accompanying drawings:
Fig. 1 shows a schematic diagram of a screen of a 3D display device and an offset of a light guide plate.
Fig. 2 shows a schematic view of a screen and a light guide plate bonded together by an adhesive.
Fig. 3 shows a perspective view of a correction device according to the invention.
Fig. 4 shows a top view of a correction device according to the invention.
Fig. 5 shows an enlarged view of the portion a in fig. 3.
Fig. 6 shows an enlarged view of a portion B in fig. 3.
Fig. 7 shows an exploded perspective view of the heating device of the correction device according to the invention.
Detailed Description
Various embodiments according to the invention will be described in detail with reference to the accompanying drawings. Here, it is to be noted that in the drawings, the same reference numerals are given to constituent parts having substantially the same or similar structures and functions, and repeated description thereof will be omitted. Unless otherwise specified, the terms "first direction", "second direction", "rotational direction", and the like are described herein with respect to the drawings of the present invention. The term "sequentially includes A, B, C, etc." merely indicates the arrangement of the included components A, B, C, etc. and does not exclude the possibility of including other components between a and B and/or between B and C. The description of "first" and its variants is merely for distinguishing the components, and does not limit the scope of the present invention, and "first component" may be written as "second component" or the like without departing from the scope of the present invention.
The drawings in the present specification are schematic views, which assist in explaining the concept of the present invention, and schematically show the shapes of the respective parts and their interrelationships.
Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to fig. 1 to 7.
Fig. 1 shows a schematic view of angular offset of a screen and a light guide plate in a 3D display device. As can be seen from fig. 1, the screen and the light guide plate are not aligned and there is an angular offset. The screen 1 and the light guide plate 2 are bonded together by an adhesive 3 as shown in fig. 2.
Fig. 3 shows a perspective view of the correction device, and fig. 4 shows a top view of the correction device. The correction device comprises a substrate 4, wherein the substrate 4 carries a screen and a light guide plate; a first detecting member 5 configured to be able to contact a first side (e.g., an upper side) of the screen to detect an angular displacement of the screen in a first direction (e.g., a clockwise direction) with respect to the light guide plate, the first detecting member being disposed at an upper left side of the screen as shown, and the upper left side of the screen being brought into contact with the first detecting member when the screen is angularly displaced in the clockwise direction with respect to the light guide plate, so that the first detecting member detects the angular displacement of the screen in the clockwise direction; a first regulating member 6 configured to be able to abut against a second side (e.g., a lower side) of the screen opposite to the first side and rotate the screen in a second direction (e.g., a counterclockwise direction) opposite to the first direction to correct an angular displacement of the screen in the first direction, the first regulating member being disposed at a lower right side of the screen as shown, and rotating the screen in the counterclockwise direction when there is an angular displacement of the screen in a clockwise direction with respect to the light guide plate, thereby eliminating the angular displacement.
As shown in fig. 5, the first detecting member 5 includes a first detecting head 51 and a first indicator 52, and when the screen is angularly displaced in, for example, a clockwise direction, the upper left side of the screen contacts the first detecting head 51 and presses the first detecting head to move, and the first indicator 52 indicates the displacement amount of the first detecting head. As shown in fig. 6, the first adjuster 6 includes a first adjuster 61 and a first actuator 62, and when the screen is angularly displaced in the clockwise direction, the first actuator may be manually or electrically actuated to bring the first adjuster into contact with the lower right side of the screen and push the screen to rotate in the counterclockwise direction to correct the angular displacement of the screen in the clockwise direction when the first indicator indicates the displacement amount of the first detector. When the value indicated by the first indicator 52 returns to the original value, the angular displacement of the screen in the clockwise direction is indicated to have been corrected.
The correction device further comprises a second detection member 7 configured to be able to contact the first side of the screen to detect an angular displacement of the screen in a second direction (e.g. counter-clockwise) with respect to the light guide plate, the second detection member being arranged at an upper right side of the screen as shown, the upper right side of the screen being in contact with the second detection member when the screen is angularly displaced in counter-clockwise with respect to the light guide plate, such that the second detection member detects an angular displacement of the screen in counter-clockwise direction; a second adjustment member 8 configured to abut a second side (e.g., lower side) of the screen and rotate the screen in a first direction (e.g., clockwise) to correct an angular displacement of the screen in the second direction, the second adjustment member being disposed at a lower left side of the screen as shown, the second adjustment member rotating the screen in a clockwise direction when the screen is angularly displaced in a counterclockwise direction with respect to the light guide plate, thereby eliminating the angular displacement.
The second detecting member 7 includes a second detecting head 71 and a second indicator 72, and when the screen is angularly displaced in, for example, the counterclockwise direction, the upper right side of the screen is brought into contact with the second detecting head 71 and the second detecting head is pushed to move, and the second indicator 72 can indicate the displacement amount of the second detecting head. The second regulating member 8 includes a second regulating head 81 and a second actuator 82, and when the screen has an angular displacement in the counterclockwise direction, the second indicator indicates the displacement amount of the second detecting head, the second actuator may be manually or electrically activated, thereby bringing the second regulating head into contact with the lower left side of the screen and pushing the screen to rotate in the clockwise direction to correct the angular displacement of the screen in the counterclockwise direction. When the value indicated by the second indicator 82 returns to the original value, the angular offset of the screen in the counterclockwise direction is corrected.
In the preferred embodiment the first adjustment member, the first detection member, the second adjustment member and the second detection member may be in the form of differential heads, but it will be appreciated that other forms of components may be selected by the person skilled in the art as long as the objects of the present invention are achieved.
The correction device further includes a positioning member 9 capable of reliably fixing the screen and the light guide plate on the substrate to prevent the screen and the light guide plate from moving. The positioning member may be in the form of a stopper disposed around the light guide plate to block movement of the light guide plate.
The correction device further comprises heating means 10 arranged between the substrate and the light guide plate. During the operation of the correction device, the light guide plate can be heated, so that the adhesive between the light guide plate and the screen is liquefied, the screen is convenient to rotate, and offset correction is performed. As shown in fig. 7, the heating means comprises a heating platform 101 provided with grooves 1011 matching the form of the heating pipes and heating pipes 102 accommodated in corresponding grooves of the heating platform 101, advantageously the heating pipes have a U-shaped arrangement for uniformly heating the adhesive on the light guide plate. The heating device advantageously further comprises a vacuum extraction opening (not shown) connected to an external vacuum extraction device for adsorbing the light guide plate to the heating platform by vacuum adsorption. The heating device further comprises a sealing ring 103 arranged on the heating platform for providing a seal during evacuation. The heating platform includes a cover (not shown) to enclose the heating tube and the sealing ring.
The correction apparatus according to the present invention, by which the angular offset of the light guide plate and the screen can be corrected without disassembling them, simplifies the work flow and saves the cost, has been described above.
Moreover, each technical feature disclosed above is not limited to the combination with other features disclosed, and other combinations between each technical feature may be performed by those skilled in the art according to the purpose of the present invention, so as to achieve the purpose of the present invention.
Claims (12)
1. A correction apparatus for correcting an angular offset between a screen and a light guide plate, comprising:
A substrate on which the light guide plate and the screen can be positioned;
A first detecting member configured to be capable of contacting a first side of the screen to detect an angular displacement of the screen in a first direction with respect to the light guide plate;
A first adjustment member configured to abut a second side of the screen opposite the first side and rotate the screen in a second direction opposite the first direction to correct an angular displacement of the screen in the first direction,
The adhesive is arranged between the screen and the light guide plate, and the correction device further comprises a heating device which is arranged in the substrate and can heat the light guide plate, so that the adhesive between the light guide plate and the screen is liquefied.
2. The correction device according to claim 1, characterized in that the correction device further comprises:
A second detecting member configured to be capable of contacting the first side of the screen to detect an angular shift of the screen in a second direction with respect to the light guide plate;
And a second adjustment member configured to abut a second side of the screen and rotate the screen in the first direction to correct an angular offset of the screen in the second direction.
3. The correction device according to claim 2, further comprising a positioning member provided on the substrate, the light guide plate being positioned on the substrate by the positioning member.
4. The correction apparatus according to claim 2, wherein the first detection member includes a first detection head configured to be in contact with the first side of the screen and move under the pushing of the first side, and a first indicator configured to detect the displacement amount of the first detection head.
5. The correction apparatus according to claim 4, wherein the second detection member includes a second detection head configured to be in contact with the first side of the screen and move under the pushing of the first side, and a second indicator configured to detect the displacement amount of the second detection head.
6. The correction device of claim 5, wherein the first adjustment member includes a first adjustment head and a first actuator, the first adjustment head being configured to contact the second side of the screen and rotate the screen in the second direction under the influence of the first actuator.
7. The correction device of claim 6, wherein the second adjustment member includes a second adjustment head and a second actuator, the second adjustment head being configured to contact a second side of the screen and rotate the screen in the first direction under the influence of the second actuator.
8. Correction device according to any one of the preceding claims 2-7, characterized in that the first detection element, the first adjustment element, the second detection element and the second adjustment element are differential heads.
9. The correction device as set forth in claim 1, wherein the heating means includes a heating stage in which the heating pipe is disposed and a heating pipe on which the light guide plate is disposed.
10. The correction device as set forth in claim 9, wherein said heating tube has a U-shaped arrangement to uniformly heat the adhesive on the light guide plate.
11. The correction apparatus as set forth in claim 1, wherein the heating means is further provided therein with a vacuum suction port for connecting to an external vacuum suction means to suck the light guide plate on the heating stage by vacuum suction.
12. The correction device of claim 11, wherein the heating means further comprises a sealing ring disposed on the heating tube to provide a seal when a vacuum is drawn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058083.1A CN114325919B (en) | 2020-09-30 | 2020-09-30 | Correction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011058083.1A CN114325919B (en) | 2020-09-30 | 2020-09-30 | Correction device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114325919A CN114325919A (en) | 2022-04-12 |
| CN114325919B true CN114325919B (en) | 2024-06-11 |
Family
ID=81011452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011058083.1A Active CN114325919B (en) | 2020-09-30 | 2020-09-30 | Correction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114325919B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6192795B1 (en) * | 1997-09-16 | 2001-02-27 | Hix Corporation | Screen printing apparatus with independent screen adjustment |
| CN101276077A (en) * | 2007-03-29 | 2008-10-01 | Nec液晶技术株式会社 | Liquid crystal module and liquid crystal display device including the same |
| CN105865292A (en) * | 2015-02-09 | 2016-08-17 | 株式会社三丰 | Test indicator |
| KR20180059205A (en) * | 2016-11-25 | 2018-06-04 | 삼성전자주식회사 | Directional backlight unit, 3D image display apparatus having the same, and method of manufacturing the same |
| CN207992532U (en) * | 2018-01-08 | 2018-10-19 | 苏州向隆塑胶有限公司 | Light guide plate is to bit correction board |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4476505B2 (en) * | 2001-02-09 | 2010-06-09 | シャープ株式会社 | Liquid crystal display |
| US8040458B2 (en) * | 2006-09-26 | 2011-10-18 | Panasonic Corporation | Planar illumination device and liquid crystal display device using the same |
-
2020
- 2020-09-30 CN CN202011058083.1A patent/CN114325919B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6192795B1 (en) * | 1997-09-16 | 2001-02-27 | Hix Corporation | Screen printing apparatus with independent screen adjustment |
| CN101276077A (en) * | 2007-03-29 | 2008-10-01 | Nec液晶技术株式会社 | Liquid crystal module and liquid crystal display device including the same |
| CN105865292A (en) * | 2015-02-09 | 2016-08-17 | 株式会社三丰 | Test indicator |
| KR20180059205A (en) * | 2016-11-25 | 2018-06-04 | 삼성전자주식회사 | Directional backlight unit, 3D image display apparatus having the same, and method of manufacturing the same |
| CN207992532U (en) * | 2018-01-08 | 2018-10-19 | 苏州向隆塑胶有限公司 | Light guide plate is to bit correction board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114325919A (en) | 2022-04-12 |
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