CN102141693A - Brightness testing device - Google Patents
Brightness testing device Download PDFInfo
- Publication number
- CN102141693A CN102141693A CN2010103008346A CN201010300834A CN102141693A CN 102141693 A CN102141693 A CN 102141693A CN 2010103008346 A CN2010103008346 A CN 2010103008346A CN 201010300834 A CN201010300834 A CN 201010300834A CN 102141693 A CN102141693 A CN 102141693A
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- China
- Prior art keywords
- plummer
- briliancy
- guide plate
- proving installation
- pedestal
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Abstract
The invention provides a brightness testing device used for testing a to-be-tested backlight assembly comprising a light guide plate and a light source for illuminating the light guide plate, wherein the light guide plate comprises a light emitting surface and a bottom surface opposite to the light emitting surface. The brightness testing device comprises a pedestal, a brightness meter fixedly arranged on the pedestal, a bearing table positioned between the brightness meter and the pedestal, a driving device, a sensor positioned between the bearing table and the pedestal, and a light blocking sheet, wherein the bottom surface of the light guide plate is borne on the bearing table, and the light emitting surface faces the brightness meter. The bearing table is glidingly connected with the pedestal, the bearing table comprises a lower surface back to the light guide plate, the bearing table is provided with a slit extended along the gliding direction of the bearing table and positioned on the optical axis of the brightness meter, and the slit passes through the surface and the lower surface of the light guide plate; the light blocking sheet is positioned in the center of the bottom surface of the light guide plate and aligned with the slit; the sensor is positioned on the optical axis of the brightness meter and senses whether the light blocking sheet is positioned between the sensor and the brightness meter; and the driving device drives the bearing table to glide. When the brightness testing device is used, the light blocking sheet is aligned with the slit, and positioning is realized by sensing the position of the light blocking sheet.
Description
Technical field
The present invention relates to a kind of briliancy proving installation.
Background technology
When the light source briliancy skewness of LCD backlight module, visual inharmonious in the time of will causing the user to watch.Therefore in the production of liquid crystal displays manufacture process, need its briliancy is measured, guarantee that its display quality reaches a standard.And existing briliancy proving installation is in test during module backlight, the location that module backlight is realized in the position that need utilize a plurality of sensors constantly to adjust module backlight.Such locator meams often when test in enormous quantities module backlight, can expend the plenty of time, is unfavorable for enhancing productivity.
Summary of the invention
In view of this, be necessary to provide a kind of briliancy proving installation of locating can realized fast.
A kind of briliancy proving installation, described briliancy proving installation is used to test backlight assembly to be measured, described backlight assembly to be measured comprises light guide plate and illuminates the light guide plate light source, described light guide plate comprises that exiting surface reaches and described exiting surface opposed bottom surface, described briliancy proving installation comprises pedestal, be fixedly arranged on briliancy on the pedestal takes into account in briliancy and takes into account plummer between the pedestal, the bottom surface of described light guide plate is bearing on the described plummer, and exiting surface is towards brightness photometer.Described briliancy proving installation also comprises drive unit, sensor and light barrier, described plummer and described pedestal are slidingly connected, described plummer comprises and the opposing lower surface of described light guide plate, described plummer offers a slit along described plummer glide direction extension, described slit is positioned on the optical axis of described brightness photometer, described slit runs through the surface and the described lower surface of the described light guide plate of carrying, described light barrier is positioned at described bottom surface of light guide plate center and is used to aim at slit, described sensor is between plummer and pedestal, and be positioned on the optical axis of described brightness photometer, described sensor is used for the described light barrier of sensing whether between sensor and brightness photometer, and described drive unit drives the described relatively pedestal of described plummer and slides.
When briliancy proving installation provided by the invention uses, only the light barrier of light guide plate need be aimed at slit, thereby in mobile plummer process,, just can realize the location of light guide plate center fast with respect to brightness photometer only along the position of the sensing direction light barrier of slit.
Description of drawings
The synoptic diagram of the briliancy proving installation that Fig. 1 provides for embodiment of the present invention.
Fig. 2 is that the briliancy proving installation of briliancy proving installation of Fig. 1 is along the cut-open view of III-III line gained.
Fig. 3 is the plummer of briliancy proving installation of Fig. 1 and the synoptic diagram of clamping device.
The main element symbol description
Connecting line 21
Brightness photometer bracing frame 30
Loading end 61
Tooth bar 621
Clamping device 70
Holder 71
Clamping part 710
Double-screw bolt 72
Sliding part 720
Gear 82
The 3rd side 213
The 4th side 214
Exiting surface 215
Embodiment
See also Fig. 1 and Fig. 2, be briliancy proving installation 100 provided by the invention.Described briliancy proving installation 100 is used to test backlight assembly 200 to be measured, and described backlight assembly 200 to be measured comprises a light guide plate 210 and a light source 220.Described light guide plate 210 comprises first side 211, second side 212 adjacent with first side 211, three side 213 relative with first side 211, four side 214, exiting surface 215 and and the exiting surface opposing lower surface 216 relative with second side.Described light source 220 is positioned on first side 211 of light guide plate 210.Described light source 220 also comprises winding displacement joint 221.
Described briliancy proving installation 100 comprises that a pedestal 10, electric supply installation 20, brightness photometer bracing frame 30, brightness photometer 40, sensor 50, plummer 60, clamping device 70, drive unit 80 and one are used to assist the circular light barrier 90 of locating.
Described pedestal 10 comprises end face 11 and is positioned at two slide rails that are parallel to each other 12 of end face 11.Described electric supply installation 20 is contained in the described pedestal 10.Described electric supply installation 20 is used to backlight assembly 200 to be measured that electric energy is provided.Described electric supply installation 20 comprises connecting line 21 and is connected power supply connector 22 on the connecting line 21.Described power supply connector 22 is connected with the winding displacement joint 221 of described backlight assembly 200 to be measured.
Brightness photometer bracing frame 30 is fixedly arranged on the described pedestal 10.Described brightness photometer 40 is fixedly arranged on described pedestal 10 tops by described brightness photometer bracing frame 30.
Described sensor 50 is fixedly arranged on the end face 11 of described pedestal 10, and is positioned on the optical axis of described brightness photometer 40.In the present embodiment, described sensor 50 adopts simple optical sensor.Certainly, described sensor 50 also can adopt imageing sensor.
See also Fig. 3, described plummer 60 comprise loading end 61 towards described brightness photometer 40, with opposing lower surface 62, first flange 63 and second flange 64 of loading end 61.Described loading end 61 is used to carry described backlight assembly to be measured 200.The bottom surface 215 of described backlight assembly 200 is bearing on described loading end 61.The exiting surface 215 of described backlight assembly 200 is towards described brightness photometer 40.Offer two first chutes 620 that match with the slide rail 12 of described pedestal 10 on the described lower surface 62.Described plummer 60 is slidingly connected with described pedestal 10 by the described slide rail 12 and first chute 620.Offer the slit 610 that extends along glide direction on the described plummer 60, described slit 610 runs through loading end 61 and described lower surface 62.Described slit 610 is positioned on the optical axis of described brightness photometer 40.
Described lower surface 62 also set firmly one with the parallel tooth bar 621 of described first chute 620.Offer two second chutes 611 that are parallel to each other on the described loading end 61, the bearing of trend of described second chute 611 parallels with the bearing of trend of described first chute 620.Described first flange 63 and second flange 64 are positioned at the relative both sides of described plummer 60.Described first flange 63 and second flange 64 are parallel to each other, and bearing of trend is vertical with the glide direction of described plummer 60.Described first flange 63 comprises abutment face 630, and described abutment face 630 is used for leaning with second side 212 of described light guide plate 210.
Described clamping device 70 comprises holder 71 and two double-screw bolts 72.In the present embodiment, described holder 71 is platy structures.Described holder 71 comprises clamping part 710 and two sliding parts 720.Described clamping part 710 is used for leaning with the 4th side 214 of described light guide plate 210.Described two sliding parts 720 match with described two second chutes 611 respectively.Described two double-screw bolts 72 and described second flange, 64 bolts, and be resisted against on the described holder 71, be used for fixing the position of described holder 71.By screwing described two double-screw bolts 72 described light guide plate 210 is stepped up.
Described drive unit 80 comprises motor 81 and gear 82.Described motor 81 is fixedly arranged on the end face 11 of described pedestal 10, and described motor 81 drives described gear 82 and rotates.Described gear 82 matches with the tooth bar 621 of described plummer 60.Described drive unit 80 drives described plummer 60 by motor 81 and slides on the slide rail 12 of described pedestal 10.Certainly, described drive unit 80 also can adopt worm-drive, simultaneously the slide rail 12 on the described pedestal 10 is designed to worm screw.
When needs were tested backlight assembly 200 to be measured, at the lower surface 216 subsides one circular light barrier 90 of described light guide plate 210, and described circular light barrier 90 was affixed on described light guide plate 210 centers.Again described backlight assembly 200 to be measured is positioned on the described loading end 61, guarantees that simultaneously described circular light barrier 90 is positioned on the described slit 610, utilize described clamping device 70 that described backlight assembly 200 to be measured is clamped.Be described light source 220 power supplies by connecting described power supply connector 22 with described winding displacement joint 221, make described light source 220 luminous.Drive described plummer 60 by described drive unit 80 then and move, directly over described circular light barrier 90 is positioned at described sensor 50.This moment, the shade of described circular light barrier 90 was positioned on the described sensor 50, described sensor 50 will sense intensity variations, determine on the optical axis of the described brightness photometer 40 of being centered close to of described light guide plate 210, thus the location of realizing the described relatively brightness photometer 40 in center of light guide plate 210.
When briliancy proving installation provided by the invention uses, only the light barrier of light guide plate need be aimed at slit, thereby in mobile plummer process,, just can realize the location of light guide plate center fast with respect to brightness photometer only along the position of the sensing direction light barrier of slit.
Be understandable that, for the person of ordinary skill of the art, can make other various corresponding changes and distortion by technical conceive according to the present invention, and all these change the protection domain that all should belong to claim of the present invention with distortion.
Claims (9)
1. briliancy proving installation, described briliancy proving installation is used to test backlight assembly to be measured, described backlight assembly to be measured comprises light guide plate and illuminates the light guide plate light source, described light guide plate comprises that exiting surface reaches and described exiting surface opposed bottom surface, described briliancy proving installation comprises pedestal, being fixedly arranged on briliancy on the pedestal takes into account in briliancy and takes into account plummer between the pedestal, the bottom surface of described light guide plate is bearing on the described plummer, exiting surface is towards brightness photometer, it is characterized in that, described briliancy proving installation also comprises drive unit, sensor and light barrier, described plummer and described pedestal are slidingly connected, described plummer comprises and the opposing lower surface of described light guide plate, described plummer offers a slit along described plummer glide direction extension, described slit is positioned on the optical axis of described brightness photometer, described slit runs through the surface and the described lower surface of the described light guide plate of carrying, described light barrier is positioned at described bottom surface of light guide plate center and is used to aim at slit, described sensor is between plummer and pedestal, and be positioned on the optical axis of described brightness photometer, described sensor is used for the described light barrier of sensing whether between sensor and brightness photometer, and described drive unit drives the described relatively pedestal of described plummer and slides.
2. briliancy proving installation as claimed in claim 1 is characterized in that, described pedestal is provided with the slide rail that extends along described plummer glide direction, and the lower surface of described plummer is provided with the chute that cooperates with described slide rail.
3. briliancy proving installation as claimed in claim 1 is characterized in that, described briliancy proving installation also comprises the electric supply installation that is used to backlight assembly power supply to be measured, and described electric supply installation is contained in the described pedestal.
4. briliancy proving installation as claimed in claim 1 is characterized in that, described briliancy proving installation also comprises the clamping device that is used for fixing module backlight to be measured, and described clamping device is fixedly arranged on the described plummer.
5. briliancy proving installation as claimed in claim 4, it is characterized in that, described plummer both sides comprise two first flanges vertical with the plummer glide direction and second flange, described first flange and second flange are oppositely arranged, described clamping device comprises holder and double-screw bolt, described holder is between described first flange and second flange, be used for module backlight to be measured is clamped between the described holder and second flange, described holder and described loading plate are slidingly connected, described double-screw bolt is bolted on described first flange, and is resisted against on the described holder.
6. briliancy proving installation as claimed in claim 5 is characterized in that, offers on the loading end of described loading plate along the chute of plummer glide direction, and described holder is provided with the slide rail that matches with described chute.
7. briliancy proving installation as claimed in claim 1 is characterized in that, adopts gear and tooth bar transmission between described drive unit and the described plummer, and described gear is located on the drive unit, and described tooth bar is fixedly arranged on the described plummer.
8. briliancy proving installation as claimed in claim 4 is characterized in that, adopts worm gear and worm drive between described drive unit and the described plummer, and described worm gear is located on the drive unit, and described worm screw is fixedly arranged on the described plummer.
9. briliancy proving installation as claimed in claim 1 is characterized in that described sensor is an optical sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300834.6A CN102141693B (en) | 2010-01-28 | 2010-01-28 | Brightness testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010300834.6A CN102141693B (en) | 2010-01-28 | 2010-01-28 | Brightness testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102141693A true CN102141693A (en) | 2011-08-03 |
| CN102141693B CN102141693B (en) | 2014-07-16 |
Family
ID=44409328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010300834.6A Expired - Fee Related CN102141693B (en) | 2010-01-28 | 2010-01-28 | Brightness testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102141693B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506997A (en) * | 2011-11-18 | 2012-06-20 | 亿利资源集团有限公司 | Brightness measurement system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252442A (en) * | 1978-05-22 | 1981-02-24 | Bbc Brown, Boveri & Company Limited | Adjusting method and apparatus for positioning planar components |
| CN1327149A (en) * | 2000-06-07 | 2001-12-19 | 明碁电脑股份有限公司 | Detector for light ray emitted from plane light source |
| CN2754078Y (en) * | 2004-11-16 | 2006-01-25 | 上海晨兴电子科技有限公司 | Operating table for chrominance, brightness, colour temperature and contrast ratio measurement |
| CN101075025A (en) * | 2007-07-02 | 2007-11-21 | 浙江大学 | Method, instrument and system for on-line measuring lightback mould set chroma (or glowing) |
| KR100785420B1 (en) * | 2006-06-13 | 2007-12-13 | 주식회사 에스에프에이 | Denting inspecting apparatus |
| CN201069488Y (en) * | 2006-11-30 | 2008-06-04 | 陈云波 | Optical center location instrument for glass lens |
| US20080201939A1 (en) * | 2007-02-28 | 2008-08-28 | Hon Hai Precision Industry Co., Ltd. | System and process for assembling camera modules |
| CN201233483Y (en) * | 2008-07-18 | 2009-05-06 | 比亚迪股份有限公司 | Tool for adhering LCD and light conducting board |
-
2010
- 2010-01-28 CN CN201010300834.6A patent/CN102141693B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4252442A (en) * | 1978-05-22 | 1981-02-24 | Bbc Brown, Boveri & Company Limited | Adjusting method and apparatus for positioning planar components |
| CN1327149A (en) * | 2000-06-07 | 2001-12-19 | 明碁电脑股份有限公司 | Detector for light ray emitted from plane light source |
| CN2754078Y (en) * | 2004-11-16 | 2006-01-25 | 上海晨兴电子科技有限公司 | Operating table for chrominance, brightness, colour temperature and contrast ratio measurement |
| KR100785420B1 (en) * | 2006-06-13 | 2007-12-13 | 주식회사 에스에프에이 | Denting inspecting apparatus |
| CN201069488Y (en) * | 2006-11-30 | 2008-06-04 | 陈云波 | Optical center location instrument for glass lens |
| US20080201939A1 (en) * | 2007-02-28 | 2008-08-28 | Hon Hai Precision Industry Co., Ltd. | System and process for assembling camera modules |
| CN101075025A (en) * | 2007-07-02 | 2007-11-21 | 浙江大学 | Method, instrument and system for on-line measuring lightback mould set chroma (or glowing) |
| CN201233483Y (en) * | 2008-07-18 | 2009-05-06 | 比亚迪股份有限公司 | Tool for adhering LCD and light conducting board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506997A (en) * | 2011-11-18 | 2012-06-20 | 亿利资源集团有限公司 | Brightness measurement system |
| CN102506997B (en) * | 2011-11-18 | 2014-07-09 | 亿利资源集团有限公司 | Brightness measurement system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102141693B (en) | 2014-07-16 |
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Granted publication date: 20140716 Termination date: 20150128 |
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| EXPY | Termination of patent right or utility model |