CN114325919A - Correction device - Google Patents
Correction device Download PDFInfo
- Publication number
- CN114325919A CN114325919A CN202011058083.1A CN202011058083A CN114325919A CN 114325919 A CN114325919 A CN 114325919A CN 202011058083 A CN202011058083 A CN 202011058083A CN 114325919 A CN114325919 A CN 114325919A
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- CN
- China
- Prior art keywords
- screen
- light guide
- guide plate
- side edge
- heating
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- 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.)
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 16
- 239000000758 substrate Substances 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims description 39
- 238000001514 detection method Methods 0.000 claims description 17
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 238000005086 pumping Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 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 contactable with 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 edge of the screen opposite the first side edge 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 apparatus 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, a 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 therebetween, which results in that the disassembled light guide plate cannot be reused. After the correction, the disassembled screen and a new light guide plate need to be reassembled. This results in an inability to reuse the light guide plate material, 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 contactable with 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 edge of the screen opposite the first side edge 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 contactable with the first side edge of the screen to detect an angular displacement of the screen in the second direction with respect to the light guide plate; a second adjustment member configured to abut a second side edge 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 disposed on the substrate, and the light guide plate is positioned on the substrate by the positioning member.
Advantageously, the first detecting member includes a first detecting head configured to contact the first side edge of the screen and to move under the pressing of the first side edge, and a first indicator configured to detect a displacement amount of the first detecting head.
Advantageously, the second detecting member includes a second detecting head configured to contact the first side edge of the screen and to move under the urging of the first side edge, and a second indicator configured to detect a displacement amount of the second detecting 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 edge of the screen and rotate the screen in the second direction under the action 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 the second side edge of the screen and rotate the screen in the first direction under the action of the second actuator.
Advantageously, the first detection member, the first adjustment member, the second detection member and the second adjustment member are differential heads.
Advantageously, the adhesive is arranged between the screen and the light guide plate, said correction device further comprising heating means arranged in the base plate capable of heating the light guide plate and thereby liquefying the adhesive between the light guide plate and the screen.
Advantageously, the heating device comprises a heating platform and a heating pipe, the heating pipe is arranged in the heating platform, and the light guide plate is 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 suck the light guide plate on the heating platform by vacuum suction.
Advantageously, the heating device further comprises a sealing ring arranged on the heating tube to provide a seal when the vacuum is drawn.
Drawings
Advantages and objects of the present invention will be better understood from the following detailed description of preferred embodiments of the invention, taken in conjunction with the accompanying drawings. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the relationship of the various components. In the drawings:
fig. 1 illustrates a schematic view of an offset of a screen and a light guide plate of a 3D display device.
Fig. 2 shows a schematic view in which the screen and the light guide plate are 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 a 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 means 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. The terms "first direction", "second direction", "rotational direction", and the like herein are described with respect to the drawings of the present invention, unless otherwise specified. The term "sequentially comprising A, B, C, etc" merely indicates the order of the included elements A, B, C, etc. and does not exclude the possibility of including other elements 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 invention, and "first" may be written as "second" and the like without departing from the scope of the invention.
The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of respective portions and their mutual relationships.
Hereinafter, a preferred embodiment according to the present invention will be described in detail with reference to fig. 1 to 7.
Fig. 1 illustrates a schematic diagram of an angular offset of a screen and a light guide plate in a 3D display device. As can be seen in 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, the substrate 4 carrying a screen and a light guide plate; a first detecting member 5 configured to be capable of contacting a first side (e.g., an upper side) of the screen to detect an angular deviation 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 in the drawing, and when the screen is angularly deviated in the clockwise direction from the light guide plate, an upper left side of the screen contacts the first detecting member, so that the first detecting member detects the angular deviation of the screen in the clockwise direction; and a first adjusting member 6 configured to abut 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 deviation of the screen in the first direction, the first adjusting member being disposed at a lower right of the screen as shown in the drawing, and when there is an angular deviation of the screen in a clockwise direction with respect to the light guide plate, the first adjusting member rotates the screen in the counterclockwise direction to cancel the angular deviation.
As shown in fig. 5, the first detecting member 5 includes a first detecting head 51 and a first indicator 52, when the screen is angularly displaced, for example, in a clockwise direction, the upper left side of the screen will contact the first detecting head 51 and push the first detecting head to move, and the first indicator 52 can indicate the displacement amount of the first detecting head. As shown in fig. 6, the first adjusting member 6 includes a first adjusting head 61 and a first actuator 62, and when the screen has an angular deviation in the clockwise direction and the first indicator indicates the displacement amount of the first detecting head, the first actuator can be manually or electrically activated to bring the first adjusting head into contact with the lower right side of the screen and push the screen to rotate in the counterclockwise direction to correct the angular deviation of the screen in the clockwise direction. When the value indicated by the first indicator 52 returns to the original value, it indicates that the angular offset of the screen in the clockwise direction has been corrected.
The correction apparatus further comprises a second detection member 7 configured to be contactable with the first side edge of the screen to detect an angular displacement of the screen in a second direction (e.g., counterclockwise) relative to the light guide plate, the second detection member being disposed at an upper right side of the screen as shown in the figure, and when there is an angular displacement of the screen in the counterclockwise direction from the light guide plate, an upper right side of the screen is contacted with the second detection member, so that the second detection member detects the angular displacement of the screen in the counterclockwise direction; and a second regulating member 8 configured to abut a second side edge (e.g., a lower side edge) of the screen and rotate the screen in a first direction (e.g., a clockwise direction) to correct an angular deviation of the screen in a second direction, the second regulating member being disposed at a lower left of the screen as shown in the drawing, and when there is an angular deviation of the screen in a counterclockwise direction with respect to the light guide plate, the second regulating member rotates the screen in a clockwise direction to cancel the angular deviation.
The second detecting member 7 includes a second detecting head 71 and a second indicator 72, when the screen is angularly displaced, for example, in a counterclockwise direction, the upper right side of the screen comes into contact with the second detecting head 71 and pushes the second detecting head to move, and the second indicator 72 can indicate the amount of displacement of the second detecting head. The second adjustment member 8 comprises a second adjustment head 81 and a second actuator 82, which can be manually or electrically activated when the screen is angularly offset in the counterclockwise direction and the second indicator indicates the displacement of the second detection head, so as to bring the second adjustment head into contact with the lower left side of the screen and to push the screen to rotate in the clockwise direction to correct the angular offset of the screen in the counterclockwise direction. When the value indicated by the second indicator 82 returns to the original value, it indicates that the angular offset of the screen in the counterclockwise direction has been corrected.
In a 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 a person skilled in the art may also select other forms of members as long as the object of the invention is 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 therefore the offset correction is carried out. As shown in fig. 7, the heating device comprises a heating platform 101, which is provided with a recess 1011 matching the form of the heating tube, and a heating tube 102, which is received in a corresponding recess of the heating platform 101, advantageously with a U-shaped arrangement, to heat the adhesive on the light guide plate uniformly. The heating device advantageously further comprises a vacuum pumping port (not shown) connected to an external vacuum pumping device to suck the light guide plate to the heating stage by vacuum suction. 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 sealing ring.
The correction apparatus according to the present invention has been described above, by which angular offsets of the light guide plate and the screen can be corrected without disassembling them, the work flow is simplified, and the cost is saved.
Moreover, the technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention, so as to achieve the purpose of the invention.
Claims (13)
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 contactable with 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 edge of the screen opposite the first side edge and rotate the screen in a second direction opposite the first direction to correct an angular offset of the screen in the first direction.
2. The correction device of claim 1, further comprising:
a second detecting member configured to be contactable with the first side edge of the screen to detect an angular displacement of the screen in the second direction with respect to the light guide plate;
a second adjustment member configured to abut a second side edge 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 apparatus as claimed in claim 2, wherein the correction apparatus further comprises a positioning member provided on the substrate, and the light guide plate is 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 contact the first side edge of the screen and to move under the urging of the first side edge, and a first indicator configured to detect a 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 come into contact with the first side edge of the screen and to move under the urging of the first side edge, and a second indicator configured to detect a displacement amount of the second detection head.
6. The correction apparatus of claim 5, wherein the first adjustment member includes a first adjustment head and a first actuator, the first adjustment head configured to contact the second side of the screen and rotate the screen in the second direction under the action of the first actuator.
7. The correction apparatus of claim 6, wherein the second adjustment member includes a second adjustment head and a second actuator, the second adjustment head configured to contact a second side of the screen and rotate the screen in the first direction under the action of the second actuator.
8. Correction device according to any one of claims 2 to 7, characterized in that the first detection member, the first adjustment member, the second detection member and the second adjustment member are differential heads.
9. The correction device according to any one of claims 1 to 7, wherein an adhesive is provided between the screen and the light guide plate, the correction device further comprising a heating means provided in the base plate capable of heating the light guide plate to liquefy the adhesive between the light guide plate and the screen.
10. The correction device according to claim 9, wherein the heating means comprises a heating stage and a heating tube, the heating tube being disposed in the heating stage, and the light guide plate being disposed on the heating stage.
11. The correction device of claim 10, wherein the heating tube has a U-shaped arrangement to uniformly heat the adhesive on the light guide plate.
12. The correction apparatus as claimed in claim 9, wherein the heating means is further provided therein with a vacuum pumping port for connecting to an external vacuum pumping means to suck the light guide plate onto the heating stage by vacuum suction.
13. The calibration apparatus of claim 12, wherein the heating device further comprises a sealing ring disposed on the heating tube to provide a seal when the 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 true CN114325919A (en) | 2022-04-12 |
| CN114325919B 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 (7)
| 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 |
| US20020154256A1 (en) * | 2001-02-09 | 2002-10-24 | Fujitsu Limited | Liquid-crystal display and a lighting apparatus |
| 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 |
| US20100014022A1 (en) * | 2006-09-26 | 2010-01-21 | Takayuki Nagata | Planar illumination device and liquid crystal display device using 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 |
-
2020
- 2020-09-30 CN CN202011058083.1A patent/CN114325919B/en active Active
Patent Citations (7)
| 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 |
| US20020154256A1 (en) * | 2001-02-09 | 2002-10-24 | Fujitsu Limited | Liquid-crystal display and a lighting apparatus |
| US20100014022A1 (en) * | 2006-09-26 | 2010-01-21 | Takayuki Nagata | Planar illumination device and liquid crystal display device using the same |
| 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 |
|---|---|
| CN114325919B (en) | 2024-06-11 |
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