CN100371777C - Projector for detecting plane displaying board and projecting method realized by same - Google Patents
Projector for detecting plane displaying board and projecting method realized by same Download PDFInfo
- Publication number
- CN100371777C CN100371777C CNB2005100088691A CN200510008869A CN100371777C CN 100371777 C CN100371777 C CN 100371777C CN B2005100088691 A CNB2005100088691 A CN B2005100088691A CN 200510008869 A CN200510008869 A CN 200510008869A CN 100371777 C CN100371777 C CN 100371777C
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- Prior art keywords
- light
- light projector
- display panel
- projecting portion
- flat display
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 20
- 238000001514 detection method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000003247 decreasing effect Effects 0.000 abstract 3
- 230000003287 optical effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N2021/9513—Liquid crystal panels
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pathology (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Projection Apparatus (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
- Liquid Crystal (AREA)
Abstract
A light projecting method for decreasing the horizontal movement of the light projecting part is decreased and the light projection range of the light projecting part is expanded during the examination of the flat display panel, and a light projector performing the same. The light projecting method includes the steps of loading a flat display panel on the flat display panel tester, projecting light on the surface of the loaded flat display panel by horizontally moving a light projector installed to the upper side of the flat display panel tester, and forwarding an optical angle by gradually increasing the height of the light projector in the traveling direction during the movement of the light projector. Since it is not necessary to install an additional light projector for projecting light on the surface of a large sized flat display panel nor is it necessary to manufacture a large sized flat display panel tester, productivity of flat display panels is increased and their manufacturing costs can be decreased.
Description
Technical field
The present invention relates to a kind of slab display panel detector, relate in particular to a kind of light projector that can be used for slab display panel detector, its can be when checking flat display board with ray cast to the surface of flat display panel.The invention still further relates to the light projecting method of realizing by this light projector.
Background technology
Usually, flat display board is the of future generation display device of the replacement of development at present as the cathode ray tube (CRT) of TV or computer monitor.LCD (LCD), plasma display panel (PDP) and electroluminescent display (EL) are representational flat display boards.
On the other hand, in the process of making flat display board, the outward appearance that needed to check display board before the backlight and driving circuit of assembling is for example checked the homogeneity and the cut of distance between defective in the foreign matter that retains onboard and stain, the circuit layout, the assembling substrates.
In order to carry out above-mentioned check, need utilize slab display panel detector, this display board is loaded on (detection) platform on this detecting device checks, control the angle of inclination of display board simultaneously.Light projector is installed in the detecting device, is used for light is projected the surface of display board.
Fig. 3 shows an example of traditional light projector.As shown in Figure 3, be used for the upside that the light projector 200 of throw light downwards is installed in slab display panel detector 100.Light projector 200 illuminates the surface of flat display board, and moves in the horizontal direction along track 110 by the mobile device (not shown) that has adopted servomotor.
But, owing to light projector 200 is installed in the slab display panel detector 100, the motion of light projector 200, promptly the light projector scope of light projector 200 is subjected to the restriction of the size of slab display panel detector 100.Therefore, when loading a large-sized flat display board when testing, because traditional light projector 200 can't be with the whole test surfaces of ray cast to the flat display board that is loaded, therefore need extra light projector, perhaps must make one and corresponding large scale light projector of this large scale display board or slab display panel detector.
In other words, consider that manufacturer competitively produces the present situation of the semiconductor industry of bigger flat display board, application will produce remarkable influence to the throughput rate and the manufacturing cost of large scale flat display board with the corresponding slab display panel detector of size of flat display board in industry.
Summary of the invention
Therefore, based on above-mentioned and/or other problem, make the present invention.The object of the present invention is to provide a kind of light projecting method, it can reduce moving horizontally of light projector when the detection plane display board, and enlarges the light projector scope of light projector.The present invention also aims to provide a kind of light projector of realizing this light projecting method.
According to the present invention, above-mentioned and other purpose can realize that this light projector throw light is to check flat display board by a kind of light projector that is installed in the slab display panel detector top is provided.This light projector comprises: light-projecting portion is used for downward throw light, thereby illuminates the surface that is loaded into the flat display board on the slab display panel detector platform; Move horizontally portion, be used to make light-projecting portion to move back and forth in the horizontal direction; Optic angle degree adjuster is used for when mobile light-projecting portion, follows into by the height that makes light-projecting portion that direction increases gradually, makes the light projector angle reach.
According to the present invention, above-mentioned and other purpose can realize that this light projecting method comprises the steps, flat display board is loaded on the slab display panel detector by a kind of light projecting method that is used for slab display panel detector is provided; By moving horizontally the light projector that is installed in the slab display panel detector upside, with ray cast to the surface of the flat display board that has loaded; And in the motion process of light projector, make the light projector angle reach by the height that increases light projector along direction of motion gradually.
Description of drawings
According to following detailed description of in conjunction with the accompanying drawings an embodiment being carried out, objects and advantages of the present invention will become clear more and understand easily, among the figure:
Fig. 1 shows the skeleton view of light projector according to a preferred embodiment of the invention;
Fig. 2 a and 2b show the course of work of light projector among Fig. 1; And
Fig. 3 shows a kind of traditional light projector.
Embodiment
Hereinafter describe the preferred embodiments of the present invention in detail with reference to accompanying drawing.
Fig. 1 shows light projector skeleton view according to a preferred embodiment of the invention.Fig. 2 a and 2b show the course of work of the light projector among Fig. 1.As shown in FIG., light projector according to a preferred embodiment of the invention is installed in the upside of slab display panel detector, comprise: light-projecting portion 10, thus be used for light is throwed the surface of illuminating the flat display board P on the platform (not shown) that is loaded in slab display panel detector downwards; Move horizontally portion 20, be used to make light-projecting portion 10 along continuous straight runs to move back and forth; And optic angle degree adjuster 30, be used for when mobile light-projecting portion 10, increase the height of light-projecting portion 10 gradually by following direction into, make the light projector angle reach.
Light-projecting portion 10 comprises: the box 11 of a darkroom type, and be used for the light source 12 of emission light in box 11, and be installed in catoptron 13a and 13b in the box 11, be used for reflection downwards and projection light from light source 12 emissions.In this embodiment, catoptron 13a is connected with 13b is whole each other.
Like this, when driving moved horizontally portion 20 with detection plane display board P, light-projecting portion 10 moved by side to opposite side from one above flat display board P, and light is invested the surface of flat display board P.At this moment, because light-projecting portion 10 increases by optic angle degree adjuster 30 gradually along the height of moving direction, therefore, the light projector angle reach (is promptly tilted along direction of motion owing to light projector angle, thereby the light projector angle that is positioned at a side varies to β (beta) from α (alpha)), thereby the tangential movement of light-projecting portion 10 reduces, and it is big that the scope of light projector becomes as far as possible.
Moving horizontally portion 20 comprises: bracing frame 21a and 21b, and it is arranged at the both sides of light-projecting portion 10; Screw rod 23, level are installed on bracing frame 21a and the 21b, and are driven by servomotor 22; Moving slider 24 is movably with screw rod 23 engagements; And bearing 25, be wholely set with moving slider 24, and be installed in a side of light-projecting portion 10, around hinge axis 250 rotations.
Shown in Fig. 2 a and 2b, when screw rod 23 during by servomotor 22 driven in rotation, moving slider 24 along screw rod 23 to the two ends of screw rod 23 (one of) move, therefore, the bearing 25 and light-projecting portion 10 motions that couple together with moving slider 24.
The sidepiece that bearing 25 is installed in light-projecting portion 10 is with around hinge axis 250 rotations, thereby in light-projecting portion 10 motion processes, bearing 25 makes the light projector angle reach around 250 rotations.
In addition, if the motion of lm guides 26 with guiding moving slider 24 or bearing 25 is installed on bracing frame 21a and 21b, vibrations that produce in the motion process of light-projecting portion 10 and noise will reduce to minimum so, and lm guides 26 can be born the weight of light-projecting portion 10, prevents screw rod 23 distortion.
Optic angle degree adjuster 30 comprises: bracing frame 21a and 21b, and it is arranged on the both sides of light-projecting portion 10; Oblique bearing 31, it is installed on bracing frame 21a and the 21b, and has the inclined-plane 310 that increases gradually respectively; And roller 32, be installed in the both sides of light-projecting portion 10, can be along the inclined-plane 310 move rotatably.
When light-projecting portion 10 moved forward, roller 32 was soaring gradually along the inclined-plane 310 of oblique bearing 31, and then light-projecting portion 10 rises and light projector angle is moved forward.
In addition, stop part 311a and 311b are installed respectively, are used for preventing that roller 32 breaks away from inclined-plane 310 at motion process at the oblique terminal part on the inclined-plane 310 of bearing 31.
On the other hand, light projecting method according to the present invention comprises the steps: flat display board P is loaded on the slab display panel detector, by moving horizontally the light projector that is installed in the slab display panel detector top, with ray cast to loading on the good flat display board P, in the light projector motion process, make the light projector angle reach by the height that increases light projector along direction of motion gradually.Below light projecting method according to the present invention is described in detail, thereby those skilled in the art can realize this method.
Though explanation is to make the light projector angle reach by the height that increases light projector along direction of motion gradually in an embodiment of the present invention, but it will be understood by those skilled in the art that, also can make the light projector angle reach by the height that reduces light projector gradually, for example, when roller 32 near the position at stop part 311a place the time, with Fig. 2 b in the side shown in the arrow light projector is moved forward in the opposite direction.
According to the present invention, because in the checking process of flat display board, reduced the tangential movement of light-projecting portion, enlarged the light projector scope of light-projecting portion, therefore do not need to install extra light projector and light is projected on the surface of large scale flat display board, do not need to make large-sized slab display panel detector yet.
In other words, owing to adopt the slab display panel detector of this light projector and light projecting method can be applied on the flat display board of arbitrary dimension, so the throughput rate of flat display board improved, and manufacturing cost has reduced.
Though disclosed the preferred embodiments of the present invention for the present invention will be described; but it will be understood by those of skill in the art that all do not depart from the scope of the present invention and spirit is carried out down various modifications, interpolation and displacement all are encompassed within protection scope of the present invention.
Claims (8)
1. a light projector is installed in the slab display panel detector upside, and throw light is to be used for the detection plane display board, and described light projector comprises:
Light-projecting portion is used for downward throw light, thereby illuminates the surface of the flat display board on the platform that is loaded on the described slab display panel detector;
Move horizontally portion, be used to make described light-projecting portion to move back and forth in the horizontal direction;
Optic angle degree adjuster is used for when moving described light-projecting portion, follows into by the height that makes light-projecting portion that direction increases gradually, makes the light projector angle reach.
2. light projector according to claim 1, wherein, the described portion of moving horizontally comprises:
Bracing frame is arranged on the both sides of described light-projecting portion;
Screw rod, level is installed on the support frame as described above, and by driven by servomotor;
Moving slider engages movably with described screw rod; And,
Bearing is with the whole sidepiece that is provided with and is installed in described light-projecting portion of described moving slider, to rotate around hinge axis.
3. light projector according to claim 1, wherein, described optic angle degree adjuster comprises:
Bracing frame is arranged on the both sides of described light-projecting portion;
Tiltedly bearing is installed on the support frame as described above, and has the inclined-plane that raises gradually respectively; And,
Roller rotatably moves along described inclined-plane.
4. light projector according to claim 2 also comprises: lm guides, be installed on the support frame as described above, and be used to guide the motion of described moving slider or bearing.
5. according to claim 2 or 4 described light projectors, wherein, described optic angle degree adjuster comprises:
Tiltedly bearing is installed on the support frame as described above, and has the inclined-plane that raises gradually respectively; And,
Roller is installed in the both sides of described light-projecting portion, and rotatably moves along described inclined-plane.
6. light projector according to claim 5 also comprises stop part, is separately positioned on the terminal part on the inclined-plane of described oblique bearing, is used to limit the motion of roller.
7. a light projecting method that is used for slab display panel detector comprises the steps:
Flat display board is loaded on the slab display panel detector,
By moving horizontally the light projector that is installed in the slab display panel detector upside, with ray cast to the surface of the flat display board that has loaded; And
In the motion process of light projector, make the light projector angle reach by the height that increases light projector along direction of motion gradually.
8. a light projector is installed in the slab display panel detector upside, and throw light is to be used for the detection plane display board, and described light projector comprises:
Light-projecting portion is used for downward throw light, thereby illuminates the surface of the flat display board on the platform that is loaded on the described slab display panel detector;
Move horizontally portion, be used to make described light-projecting portion to move back and forth in the horizontal direction;
Optic angle degree adjuster is used for by changing the height of light-projecting portion gradually, changing light projector angle when moving described light-projecting portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040069270 | 2004-08-31 | ||
| KR1020040069270A KR100599060B1 (en) | 2004-08-31 | 2004-08-31 | Light irradiation method and light irradiation device for inspecting flat panel display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1743794A CN1743794A (en) | 2006-03-08 |
| CN100371777C true CN100371777C (en) | 2008-02-27 |
Family
ID=36139265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100088691A Expired - Fee Related CN100371777C (en) | 2004-08-31 | 2005-02-24 | Projector for detecting plane displaying board and projecting method realized by same |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100599060B1 (en) |
| CN (1) | CN100371777C (en) |
| TW (1) | TWI252388B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05322783A (en) * | 1992-05-25 | 1993-12-07 | Olympus Optical Co Ltd | Substrate observing device |
| JPH07199138A (en) * | 1993-12-28 | 1995-08-04 | Matsushita Electric Ind Co Ltd | LCD panel automatic inspection device |
| JP2000275596A (en) * | 1999-03-26 | 2000-10-06 | Ricoh Co Ltd | Cell inspection apparatus and cell inspection method |
| CN1341853A (en) * | 2000-09-05 | 2002-03-27 | 奥林巴斯光学工业株式会社 | Chip testing device |
| JP2003014649A (en) * | 2001-06-27 | 2003-01-15 | Hitachi Kokusai Electric Inc | Plate inspection system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61149809A (en) | 1984-12-24 | 1986-07-08 | Gausu:Kk | Measuring method of length of long-sized material |
| US6847006B2 (en) * | 2001-08-10 | 2005-01-25 | Semiconductor Energy Laboratory Co., Ltd. | Laser annealing apparatus and semiconductor device manufacturing method |
-
2004
- 2004-08-31 KR KR1020040069270A patent/KR100599060B1/en not_active Expired - Fee Related
-
2005
- 2005-02-18 TW TW094104869A patent/TWI252388B/en not_active IP Right Cessation
- 2005-02-24 CN CNB2005100088691A patent/CN100371777C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05322783A (en) * | 1992-05-25 | 1993-12-07 | Olympus Optical Co Ltd | Substrate observing device |
| JPH07199138A (en) * | 1993-12-28 | 1995-08-04 | Matsushita Electric Ind Co Ltd | LCD panel automatic inspection device |
| JP2000275596A (en) * | 1999-03-26 | 2000-10-06 | Ricoh Co Ltd | Cell inspection apparatus and cell inspection method |
| CN1341853A (en) * | 2000-09-05 | 2002-03-27 | 奥林巴斯光学工业株式会社 | Chip testing device |
| JP2003014649A (en) * | 2001-06-27 | 2003-01-15 | Hitachi Kokusai Electric Inc | Plate inspection system |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100599060B1 (en) | 2006-07-12 |
| TWI252388B (en) | 2006-04-01 |
| KR20060020429A (en) | 2006-03-06 |
| TW200608164A (en) | 2006-03-01 |
| CN1743794A (en) | 2006-03-08 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080227 |
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| CF01 | Termination of patent right due to non-payment of annual fee |