CN101833180A - Device for repairing display panel - Google Patents
Device for repairing display panel Download PDFInfo
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- CN101833180A CN101833180A CN200910127601A CN200910127601A CN101833180A CN 101833180 A CN101833180 A CN 101833180A CN 200910127601 A CN200910127601 A CN 200910127601A CN 200910127601 A CN200910127601 A CN 200910127601A CN 101833180 A CN101833180 A CN 101833180A
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Abstract
The invention discloses a device for repairing a display panel, which comprises a laser unit, an attenuation unit, a semi-reflector, a focusing unit, a monitoring unit, a backlight source and a frequency doubling unit, wherein the frequency doubling unit consists of a plurality of lenses and is used for shortening the wavelength of laser light; and the wavelength of the laser light emitted from the laser unit is converted by the frequency doubling unit, and the laser light is attenuated by the attenuation unit and reflected by the semi-reflector to irradiate outwards through the focusing unit. Thus, the wavelength of the laser light is shortened by frequency doubling to make the focusing light waist small and reduce the scope of the laser effect on a sample; and thus, the effect of fine repairing in a cold processing procedure is achieved.
Description
Technical field
The present invention is relevant with the repairing technique of display pannel, is meant a kind of device for repairing display panel especially.
Background technology
LCD can experience the upright processing procedure of group of manufacture of semiconductor, gold-tinted micro-photographing process and filling liquid crystal in the process of making.Because fabrication steps is loaded down with trivial details and the product area is more and more big, thus the flaw of some processing procedure to cause the situation that so-called bright spot takes place product be more and more many.
LCD is the electrode by particular design, makes in the mode of extra electric field to be positioned at interelectrode liquid crystal molecule rotation, reaches the purpose of display image so as to the penetrance of regulating light.And so-called bright spot promptly is that bright-dark degree can't be with the pixel of circuit control on the LCD, and it is bright situation forever.
China discloses " method for repairing defective pixels of liquid crystal indicator and defective pixel correction apparatus " patent of invention case No. 200615628, disclose use laser oscillator, attenuator, power monitor, video camera, condenser lens, backlight or the like device or technology, and can reach the effect of corrective pitting pixel.Yet, though this kind mode is to use laser light to repair, only can use on the more normal hot-working program of irradiation time, it is not the short cold working program of irradiation time.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of device for repairing display panel, the cold working program that it is repaired applicable to laser.
Another object of the present invention is to provide a kind of device for repairing display panel, it can effectively be modified to dim spot with bright spot.
In order to reach aforementioned purpose,, include according to a kind of device for repairing display panel provided by the present invention: a laser unit, in order to produce laser light; One attenuation units is made up of several lens, in order to laser light is decayed; One half-reflecting mirror is in order to the reflection laser light and through other light; One focusing unit is made up of at least one lens, uses so that light focusing; One monitor unit has the capture function; One backlight, emitting beam enters this monitor unit to carry out capture by this focusing unit and this half-reflecting mirror; It is characterized in that, more include: a frequency multiplication unit, formed by several lens, in order to the wavelength Conversion of laser light for shorter; Wherein, the laser spectrum that this laser unit is sent comes Wavelength-converting by this frequency multiplication unit, decayed through this attenuation units again, again through the reflection of this half-reflecting mirror and by this focusing unit to external exposure.Whereby, can reach the effect of in the cold working program, repairing with laser light.
Description of drawings
Fig. 1 is the configuration diagram of device for repairing display panel one preferred embodiment of the present invention.
Embodiment
In order to describe structure of the present invention and characteristics place in detail, lift following preferred embodiment now and cooperate graphic explanation as after, wherein:
As shown in Figure 1, a kind of device for repairing display panel 10 that a preferred embodiment of the present invention provided, mainly formed by a laser unit 11, an attenuation units 21, a half-reflecting mirror 31, a focusing unit 41, a monitor unit 51, a backlight 61 and a frequency multiplication unit 71, wherein:
This laser unit 11, in order to producing the femtosecond laser light, the laser light wavelength that this laser unit 11 is produced is 700-1300nm (how rice), and pulse width is 10
-13-10
-15Second.
This attenuation units 21 is made up of several lens, mainly has the half-wave plate 22 and a polarizing beam splitter 24 of a frequency doubled light, and it makes up in order to the frequency doubled light of laser light is decayed.
This half-reflecting mirror 31 is in order to the reflection laser light and through other light.
This focusing unit 41 is made up of at least one lens, is made up of convex lens in the present embodiment, uses so that light focusing.
This backlight 61, emitting beam enters this monitor unit 51 to carry out capture by this focusing unit 41 and this half-reflecting mirror 31.
This frequency multiplication unit 71, formed by several lens, mainly have prefocusing lens 72, an optical crystal 74 and a back condenser lens 76, these prefocusing lens 72 are in order to focus on thunder laser beam to gain in strength, 74 of this optical crystals are in order to carry out the conversion of wavelength to light, 76 of this back condenser lenses are in order to become parallel beam with divergent beams, whereby can be with the wavelength Conversion of laser light for shorter.
Wherein, the laser light that this laser unit 11 is sent is to come Wavelength-converting by this frequency multiplication unit 71, decayed through this attenuation units 21 again, again through the reflection of this half-reflecting mirror 31 and by this focusing unit 41 to external exposure.
More include in the present embodiment:
One dimmer 15, laser light that this laser unit 11 is sent through this dimmer 15, enters this frequency multiplication unit 71 earlier again, and this dimmer 15 is used for blocking/do not interdict laser light, and then is replaced by the switch motion to laser light.
One smooth hurdle 25, laser light promptly enter this light hurdle 25 after decaying through this attenuation units 21, just shine afterwards in this half-reflecting mirror 31; This light hurdle 25 is in order to regulate the beam size of laser light.
The action that present embodiment can utilize an automatic focus sensing system 81 and a mobile system 85 to focus automatically.Wherein, this automatic focus sensing system 81 is in order to detecting the sharpness of the obtained image of this monitor unit 51, and adjusts whole height of devices by this mobile system 85, and the height of adjustment promptly is to make the obtained image of this monitor unit 51 position the most clearly.
The flowing mode of doing of the present invention below is described.
Before operation, display pannel 99 that earlier will be to be repaired places between this focusing unit 41 and this backlight 61.
Whether when beginning to repair, this laser unit 11 sends the femtosecond laser light, control through this dimmer 15 to allow laser light pass through, and reaches the effect of ON/OFF laser light.Then, when this dimmer 15 allowed laser light pass through, laser light promptly entered this frequency multiplication unit 71 and changes this laser light wavelength and makes its frequency multiplication.Laser light after the frequency multiplication promptly enters this attenuation units 21 again and makes its decay, with the energy of laser light after the reduction frequency multiplication.Afterwards, laser light enters this light hurdle 25, utilizes this light hurdle 25 to adjust the size of thunder laser beam.Beam size is adjusted the back laser light and then shines in this half-reflecting mirror 31, and reflection enters this focusing unit 41, shines in this display pannel to be repaired 99 through focusing on, so as to carrying out repairing work.The state of this display pannel to be repaired 99 is to monitor with capture by its surperficial reflected light through this focusing unit 41 and pass this half-reflecting mirror 31 and enter this monitor unit 51; And the light that this backlight 61 is sent same pass this display pannel to be repaired 99, and entering this monitor unit 51 through this focusing unit 41 and this half-reflecting mirror 31, this backlight 61 is used for auxiliaryly making these monitor unit 51 obtained images more help personnel's identification.
In addition, before repairing, whether also can be earlier seeing through this automatic focus sensing system 81, to detect the obtained image of this monitor unit 51 clear, if it is unintelligible, then controlling whole device with this mobile system 85 moves up and down, obtain image clearly so as to focusing, in order to follow-up repairing work.
As from the foregoing, by technology of the present invention, the display pannel 99 that can use the femtosecond laser light that need are repaired carries out laser and repairs, its laser light is through process of frequency multiplication, photon energy is high and the focusing waist is little, reach is little, the action time of monopulse is short, applicable to cold worked program, can effectively bright spot be modified to dim spot equally.
Claims (9)
1. device for repairing display panel includes:
One laser unit is in order to produce laser light;
One attenuation units is made up of several lens, in order to laser light is decayed;
One half-reflecting mirror is in order to the reflection laser light and through other light;
One focusing unit is made up of at least one lens, uses so that light focusing;
One monitor unit has the capture function;
One backlight, emitting beam enters this monitor unit to carry out capture by this focusing unit and this half-reflecting mirror;
It is characterized in that, more include:
One frequency multiplication unit is made up of several lens, in order to the wavelength Conversion of laser light for shorter;
Wherein, the laser light that this laser unit is sent is to come Wavelength-converting by this frequency multiplication unit, decayed through this attenuation units again, again through the reflection of this half-reflecting mirror and by this focusing unit to external exposure.
2. device for repairing display panel according to claim 1, it is characterized in that: this frequency multiplication unit has prefocusing lens, an optical crystal and a back condenser lens, these prefocusing lens are in order to focus on thunder laser beam to gain in strength, then in order to light is carried out the conversion of wavelength, this back condenser lens is then in order to become parallel beam with divergent beams for this optical crystal.
3. device for repairing display panel according to claim 1 is characterized in that: the laser light wavelength that this laser unit is produced is 700-1300nm (how rice), and pulse width is 10
-13-10
-15Second.
4. device for repairing display panel according to claim 1 is characterized in that: laser is 170-650nm (how rice) through the laser light wavelength after this frequency multiplication cell translation.
5. device for repairing display panel according to claim 1, it is characterized in that more including: a dimmer, the laser light that this laser unit is sent is earlier through this dimmer, enter this frequency multiplication unit again, this dimmer is used for blocking/do not interdict laser light, and then is replaced by the switch motion to laser light.
6. device for repairing display panel according to claim 1 is characterized in that: this attenuation units comprises the half-wave plate of a frequency doubled light, and polarizing beam splitter, and its combination is used for frequency doubled light is decayed.
7. device for repairing display panel according to claim 1 is characterized in that more including: Yi Guanglan, and laser light promptly enters this light hurdle after decaying through this attenuation units, just shines afterwards in this half-reflecting mirror; This light hurdle is in order to regulate the beam size of laser light.
8. device for repairing display panel according to claim 1 is characterized in that: this monitor unit is a video camera.
9. device for repairing display panel according to claim 1 is characterized in that: this device is the action that cooperates an automatic focus sensing system and a mobile system to focus automatically; Wherein, this automatic focus sensing system is in order to detecting the sharpness of the obtained image of this monitor unit, and adjusts whole height of devices by this mobile system, and the height of adjustment promptly is to make the obtained image of this monitor unit position the most clearly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127601A CN101833180A (en) | 2009-03-10 | 2009-03-10 | Device for repairing display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910127601A CN101833180A (en) | 2009-03-10 | 2009-03-10 | Device for repairing display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101833180A true CN101833180A (en) | 2010-09-15 |
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ID=42717310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910127601A Pending CN101833180A (en) | 2009-03-10 | 2009-03-10 | Device for repairing display panel |
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|---|---|
| CN (1) | CN101833180A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508329A (en) * | 2011-09-13 | 2012-06-20 | 友达光电股份有限公司 | Method for repairing damage of three-dimensional optical film and three-dimensional plane display adopting same |
-
2009
- 2009-03-10 CN CN200910127601A patent/CN101833180A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102508329A (en) * | 2011-09-13 | 2012-06-20 | 友达光电股份有限公司 | Method for repairing damage of three-dimensional optical film and three-dimensional plane display adopting same |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Open date: 20100915 |