CN1384352A - Foreign matter detector with multi-colour light source - Google Patents
Foreign matter detector with multi-colour light source Download PDFInfo
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- CN1384352A CN1384352A CN 01115905 CN01115905A CN1384352A CN 1384352 A CN1384352 A CN 1384352A CN 01115905 CN01115905 CN 01115905 CN 01115905 A CN01115905 A CN 01115905A CN 1384352 A CN1384352 A CN 1384352A
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- foreign matter
- light source
- shell
- matter detector
- backlight module
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Abstract
The foreign matter detector includes a support, a casing on the support, a transparent cover for the casing, a rotating shelf with shaft stretching in the casing, several filters in different color on the rotating shelf and a light source set in the casing. The light emitted by the light source is made to pass through the filters and to form light in special color before irradiating the casing via the transparent cover. When the detector is used to detect the surface of a back lighting board, it is set beside the board, and regulated to make the color light irradiate the surface of the board parallelly to detect its foreign matter, dust and scratch.
Description
The present invention relates to a kind of light supply apparatus, be meant a kind of foreign matter detector with multi-colour light source that is used for the LCD processing procedure especially.
Function progress along with volume miniaturization, computing and the image processing just-in-time of computer, storer high capacity, transmission speed high speed etc., incident is that the more new consumption demand of consumer produces, such as computer screen miniaturization under the finite space require, the image of various security systems shows with the identification demand, make the people see that eyes are difficult for tired and display screen demand that width of cloth ray is little, harmless or the like.If above-mentioned all demands are by LCD (LCD) during as the important interface of interpersonal and man-machine communication, not only can be readily solved, and advantages such as can reaching low power consumption, economize the energy, portable, high-res, continuous pictures manifest, LCD can be confirmed to be the following 21 century mankind's ideal and hope product.
The manufacture process of this LCD comprises substantially: liquid crystal material is injected two sheet glass with glass electrode, and stick Polarizer (light polarizing film) in the outside, so promptly finish panel of LCD (LCD Panel).Install driving circuit, control circuit and backlight module then additional, make this LCD at last.
Generally speaking, in the manufacture process of LCD, must detect foreign matter, dust or the scratch on this backlight module surface, otherwise will form defective products.Known testing process is: earlier this backlight module is lighted, placed one to have on the worktable of dustless working environment then, and then rely on operator directly in the mode of vision-based detection, detect foreign matter, dust or the scratch on this backlight module surface.
Yet in detecting process, operator must be with the direct visual light emitting source of eyes (being backlight module), and therefore for operator, the work that this foreign matter detects extremely expends eyesight.It not only can't effectively detect trickle foreign matter or scratch (for example, for diameter greater than point-like foreign matter and scratch more than the 0.2mm, and width all needs to detect greater than wire foreign matter more than the 0.05mm and scratch), in addition, it also makes eyes produce tired easily and cause erroneous judgement when detecting process, thereby fail to detect, so that form defective products for foreign matter or scratch that need detect totally.
By being, present LCD manufacture process still remains improvement, reducing the eyesight of operator foreign matter and loss of scratch time institute on detecting this backlight module, and then increases the product yield.
Fundamental purpose of the present invention provides a kind of foreign matter detector with multi-colour light source, in order to detect lip-deep foreign matter of backlight module and scratch.
Be to of the present invention syllabus to provide a kind of many color of light of utilizing this foreign matter detector with multi-colour light source to send, check the method on a backlight module surface, wherein expose to this backlight module surface this many color of light almost parallel, by this when operator in when checking lip-deep foreign matter of backlight module and scratch, can face this backlight module surface, alleviate the employment injuries of operator eyes by this, reduce the erroneous judgement that causes because of eye fatigue simultaneously.
For reaching above-mentioned purpose, the invention provides a kind of foreign matter detector with multi-colour light source, it comprises: a bracing frame; One shell is located at this bracing frame; One transparency cover is located at this shell; One rotatable, be coupling in this shell; A plurality of different colours optical filters are located at this rotatable; And a light source, be located in this shell, wherein the light of this light emitted is to become the light with particular color by optical filter earlier, exposes to outside this shell via this transparency cover then.
In a preferred embodiment, this bracing frame is a height-adjustable bracing frame, and the height of this shell can be adjusted up and down by this.
In another preferred embodiment, this shell is rotatably connected in this bracing frame, makes this shell to swing up and down with respect to bracing frame, can change the irradiating angle of this particular color light by this.In this embodiment, preferred version is an elevation angle to be set adjust button in order to adjust the anglec of rotation of this shell with respect to bracing frame.
In addition, foreign matter detector with multi-colour light source of the present invention, preferred version is to comprise a drive unit in addition to be located at shell, rotates with respect to shell in order to drive this rotatable.
The present invention provides a kind of many color of light of utilizing this foreign matter detector with multi-colour light source to send in addition, check the method on a backlight module surface, it comprises the side that this foreign matter detector with multi-colour light source is positioned over this backlight module, expose to this backlight module surface with adjust making this many color of light almost parallel then, by this can be effectively foreign matter, dust or the scratch on this backlight module surface be detected.
Since these many color of light be almost parallel expose to this backlight module surface, by this when operator in when checking lip-deep foreign matter of backlight module and scratch, can face this backlight module surface, alleviate the employment injuries of operator eyes by this, reduce the erroneous judgement that causes because of eye fatigue simultaneously.In addition, because the coloured light of different wave length will make the foreign matter on backlight module surface or scratch produce different reflected light, make the operator foreign matter or the scratch on identification backlight module surface easily, and significantly reduce the fault rate of operator, thereby improve yield.
Relevant detailed description of the present invention and technology contents, conjunction with figs. is described as follows:
Fig. 1 is the cross section view of the foreign matter detector with multi-colour light source of preferred embodiment according to the present invention;
Fig. 2 is the front view of the foreign matter detector with multi-colour light source of Fig. 1 according to the present invention;
Fig. 3 checks the method on a backlight module surface in order to many color of light that explanation utilizes Fig. 1 foreign matter detector with multi-colour light source to send.
Fig. 1 and Fig. 2 disclose the foreign matter detector with multi-colour light source 200 of the preferred embodiment according to the present invention, and it is used for thing to be detected, as the operation that detects of foreign matter on the backlight module and scratch.Though aftermentioned explanation is that the operation of foreign matter and scratch is an example on the backlight module to detect, foreign matter detector with multi-colour light source 200 of the present invention also can be used for detecting the operation of other apparatus surfaces, and is not limited to the detection operation of foreign matter and scratch on the backlight module.
With reference to Fig. 1 and Fig. 2, the shell 220 that foreign matter detector with multi-colour light source 200 of the present invention mainly comprises a bracing frame 210 and is located at this bracing frame.This bracing frame 210 is preferably a height-adjustable bracing frame, and the height of this shell 220 can be adjusted up and down by this.Being provided with a light source 230 and one rotatable 240 in this shell 220 is coupling in this shell 220.This rotatable 240 optical filter 242 that is provided with a plurality of different colours.This light source 230 is preferably a high brightness halogen lamp.As shown in the figure, the light of light source 230 emissions, under the reflection of reflector plate 232, mating plate 242 and become the light with particular color wavelength exposes to outside this shell 220 via being located at the transparency cover 222 (a for example planar crystal glass) on the shell 220 then after filtration.
With reference to Fig. 3, in foreign matter detector with multi-colour light source 200 of the present invention, this shell 220 is preferably and is rotatably connected in this bracing frame 210, makes this shell 220 to swing up and down with respect to bracing frame 210, can change the irradiating angle of this particular color light by this.In addition, its preferred version is an elevation angle to be set adjust button 250 in order to adjust the anglec of rotation of this shell 220 with respect to bracing frame 210.
Referring again to Fig. 3, according to backlight module surface inspecting method of the present invention, it is the surface that many color of light of utilizing this testing fixture 200 to send are checked backlight module 260.It is positioned over this foreign matter detector with multi-colour light source 200 side of backlight module 260 earlier, adjust the surface expose to this backlight module 260 then with making this many color of light almost parallel, by this can be effectively foreign matter, dust or the scratch on these backlight module 260 surfaces be detected.Be understandable that the irradiating angle of these many color of light and height can adjust button 250 by the elevation angle respectively and the height-adjustable bracing frame is done suitable control.
According to foreign matter detector with multi-colour light source of the present invention, its preferable scheme is to comprise a drive unit (for example electro-motor 255) in addition, is located at shell 220, is used for driving this rotatable 240 with respect to shell 220 rotations.Preferably, the change color of these testing fixture 200 emitted lights and colour switching speed can be controlled by one group of function key 270, can install external line traffic control function key 280 additional for convenience of operation and control.
According to foreign matter detector with multi-colour light source 200 of the present invention, be first opening power 290 when it uses, can press automatic button 292 then and enter automatic mode, or press manual button 294 and enter manual mode.After pressing automatic button 292, drive unit begins to drive this rotatable 240 with respect to shell 220 rotations, and can switch optical filter 242 this moment fast, and produce the light of various different colours wavelength rapidly.At this moment, the switch speed of optical filter 242 can be by speed knob 296 control, the colour switching speed of controllable device 200 emitted lights by this.After pressing manual button 294, button of then every pressure switches optical filter once.At this moment, the colour switching speed of installing 200 emitted lights is to decide according to the speed speed of pressing button.
Referring again to Fig. 3, since device 200 many color of light of being sent be almost parallel expose to this backlight module 260 surfaces, by this when operator in when checking lip-deep foreign matter of backlight module and scratch, can face this backlight module surface, alleviate the employment injuries of operator eyes by this, reduce the erroneous judgement that causes because of eye fatigue simultaneously.In addition, because the coloured light of different wave length will make the foreign matter on backlight module surface or scratch produce different reflected light, make the operator foreign matter or the scratch on identification backlight module surface easily, and significantly lower the fault rate of operator, thereby improve yield.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (7)
1, a kind of foreign matter detector with multi-colour light source is characterized in that comprising:
One bracing frame;
One shell is located at this bracing frame;
One transparency cover is located at this shell;
One rotatable, be coupling in this shell;
An above different colours optical filter is located at this rotatable; And
One light source is located in this shell,
The light of this light emitted is to become the light with particular color by optical filter earlier, exposes to outside this shell via this transparency cover then.
2, foreign matter detector with multi-colour light source according to claim 1 is characterized in that: described bracing frame is the bracing frame of a height-adjustable.
3, foreign matter detector with multi-colour light source according to claim 1 is characterized in that: described shell is to be rotatably connected in this bracing frame, and this shell can swing up and down with respect to bracing frame by this.
4, foreign matter detector with multi-colour light source according to claim 3 is characterized in that: further comprise an elevation angle and adjust button in order to adjust the anglec of rotation of this shell with respect to bracing frame.
5, foreign matter detector with multi-colour light source according to claim 3 is characterized in that: further comprise a drive unit and be located at shell, rotate with respect to shell in order to drive this rotatable.
6, foreign matter detector with multi-colour light source according to claim 5 is characterized in that: described drive unit is a motor drive.
7, a kind of many color of light of utilizing the described foreign matter detector with multi-colour light source of claim 1 to send, check the method on a backlight module surface, it is characterized in that comprising: the side that this foreign matter detector with multi-colour light source is positioned over this backlight module, adjust then with making this many color of light almost parallel and expose to this backlight module surface, detect foreign matter, dust or the scratch on this backlight module surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115905 CN1384352A (en) | 2001-04-30 | 2001-04-30 | Foreign matter detector with multi-colour light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01115905 CN1384352A (en) | 2001-04-30 | 2001-04-30 | Foreign matter detector with multi-colour light source |
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| Publication Number | Publication Date |
|---|---|
| CN1384352A true CN1384352A (en) | 2002-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01115905 Pending CN1384352A (en) | 2001-04-30 | 2001-04-30 | Foreign matter detector with multi-colour light source |
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| CN (1) | CN1384352A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575738A (en) * | 2012-07-19 | 2014-02-12 | 三星电机株式会社 | Surface foreign material detecting system and control method thereof |
| CN103940828A (en) * | 2014-05-05 | 2014-07-23 | 苏州太丰玻璃饰品有限公司 | Operation table for detecting glass cracks |
| CN110691967A (en) * | 2017-12-04 | 2020-01-14 | 株式会社Leimac | Lighting device for inspection |
-
2001
- 2001-04-30 CN CN 01115905 patent/CN1384352A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103575738A (en) * | 2012-07-19 | 2014-02-12 | 三星电机株式会社 | Surface foreign material detecting system and control method thereof |
| CN103940828A (en) * | 2014-05-05 | 2014-07-23 | 苏州太丰玻璃饰品有限公司 | Operation table for detecting glass cracks |
| CN110691967A (en) * | 2017-12-04 | 2020-01-14 | 株式会社Leimac | Lighting device for inspection |
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