CN107068023A - Test backlight and its method of work, the test equipment of display panel - Google Patents
Test backlight and its method of work, the test equipment of display panel Download PDFInfo
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- CN107068023A CN107068023A CN201710137330.9A CN201710137330A CN107068023A CN 107068023 A CN107068023 A CN 107068023A CN 201710137330 A CN201710137330 A CN 201710137330A CN 107068023 A CN107068023 A CN 107068023A
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- driver element
- luminescence unit
- chromaticity coordinates
- drive signal
- dutycycle
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/006—Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays
Abstract
The invention provides a kind of test backlight and its method of work, the test equipment of display panel, belong to display technology field.Wherein, backlight is tested, including：Multiple to send the luminescence unit of different colours, the monochromatic light that multiple luminescence units are sent can be mixed into white light；Drive signal is provided to drive the drive circuit that correspondence luminescence unit is lighted to each luminescence unit, wherein, the dutycycle of drive signal is adjustable；The dutycycle of the corresponding drive signal of each luminescence unit can be adjusted so that the chromaticity coordinates for the white light that multiple luminescence units are mixed into reaches the controller of default chromaticity coordinates., can be when testing display panel by technical scheme, the chromaticity coordinates of the backlight of adjustment test in real time.
Description
Technical field
The present invention relates to display technology field, particularly relate to a kind of test backlight and its method of work, display panel
Test equipment.
Background technology
Before display panel dispatches from the factory, it is necessary to using test backlight to display panel carry out colourity index of correlation survey
Examination.But different clients and different field have different management and control requirements to the chromaticity coordinates for testing backlight, in the prior art, it is necessary to
The test of colourity index of correlation is carried out to the individually designed corresponding test backlight of display panel of each type, adjusted
All put into examination, the time of test and cost huge.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of test backlight and its method of work, the test of display panel
Equipment, can be when testing display panel, the chromaticity coordinates of the backlight of adjustment test in real time.
In order to solve the above technical problems, embodiments of the invention offer technical scheme is as follows：
On the one hand backlight is tested there is provided one kind, including：
Multiple to send the luminescence unit of different colours, the monochromatic light that multiple luminescence units are sent can be mixed into white
Light；
Drive signal is provided to drive the drive circuit that correspondence luminescence unit is lighted to each luminescence unit, wherein,
The dutycycle of drive signal is adjustable；
The dutycycle of the corresponding drive signal of each luminescence unit can be adjusted so that it is white that multiple luminescence units are mixed into
The chromaticity coordinates of light reaches the controller of default chromaticity coordinates.
Further, the multiple luminescence unit includes：
Monochromatic first luminescence unit of the first color can be sent；
Monochromatic second luminescence unit of the second color can be sent；
Monochromatic 3rd luminescence unit of the 3rd color can be sent；
The drive circuit includes：
First driver element of drive signal is provided to first luminescence unit；
Second driver element of drive signal is provided to second luminescence unit；
3rd driver element of drive signal is provided to the 3rd luminescence unit；
The controller specifically for adjusting the driving letter that each driver element is exported respectively according to the default chromaticity coordinates
Number dutycycle；
Wherein, the first color monochromatic light, the second color monochromatic light, the 3rd color monochromatic light can be mixed into white light.
Further, the controller includes：
Comparing unit, being compared with the default chromaticity coordinates for will test the current chromaticity coordinates of backlight, obtaining institute
State the difference between current chromaticity coordinates and the default chromaticity coordinates；
Computing unit, for according to the difference calculate respectively first luminescence unit, second luminescence unit and
The chromaticity coordinates adjustment amount of 3rd luminescence unit, and the first driving list is calculated according to the chromaticity coordinates adjustment amount respectively
The drive signal dutycycle adjustment amount of first, described second driver element and the 3rd driver element；
Adjustment unit, for according to the drive signal dutycycle adjustment amount that calculates respectively to first driver element,
The dutycycle for the drive signal that second driver element and the 3rd driver element are currently exported is adjusted.
Further, the controller includes：
Comparing unit, for reference color coordinates to be compared with the default chromaticity coordinates, obtains the reference color coordinates
With the difference between the default chromaticity coordinates；
Computing unit, for according to the difference calculate respectively first luminescence unit, second luminescence unit and
The chromaticity coordinates of 3rd luminescence unit, and first driver element, second drive are calculated according to the chromaticity coordinates respectively
The drive signal dutycycle of moving cell and the 3rd driver element；
Control unit, for according to first driver element, second driver element and the described 3rd calculated
The first driver element, second driver element and the 3rd driving are single described in the drive signal Duty ratio control of driver element
First output drive signal.
Further, first color is red, and second color is green, and the 3rd color is blueness.
Further, the luminescence unit is LED.
The embodiment of the present invention additionally provides a kind of test equipment of display panel, including test backlight as described above.
The embodiment of the present invention additionally provides a kind of method of work for testing backlight, applied to test backlight as described above
Source, methods described includes：
Adjust the dutycycle of the corresponding drive signal of each luminescence unit so that the white light that multiple luminescence units are mixed into
Chromaticity coordinates reaches default chromaticity coordinates.
Further, the dutycycle of the corresponding drive signal of each luminescence unit of adjustment includes：
The current chromaticity coordinates of backlight will be tested to be compared with the default chromaticity coordinates, the current chromaticity coordinates is obtained
With the difference between the default chromaticity coordinates；
First luminescence unit, second luminescence unit and the 3rd luminous list are calculated according to the difference respectively
The chromaticity coordinates adjustment amount of member, and first driver element, second driving are calculated according to the chromaticity coordinates adjustment amount respectively
The drive signal dutycycle adjustment amount of unit and the 3rd driver element；
It is single to first driver element, second driving respectively according to the drive signal dutycycle adjustment amount calculated
The dutycycle for the drive signal that first and described 3rd driver element is currently exported is adjusted.
Further, the dutycycle of the corresponding drive signal of each luminescence unit of adjustment includes：
Reference color coordinates are compared with the default chromaticity coordinates, the reference color coordinates is obtained and is sat with the default color
Difference between mark；
First luminescence unit, second luminescence unit and the 3rd luminous list are calculated according to the difference respectively
The chromaticity coordinates of member, and first driver element, second driver element and described the are calculated according to the chromaticity coordinates respectively
The drive signal dutycycle of three driver elements；
According to the driving of first driver element, second driver element and the 3rd driver element calculated
Signal dutyfactor controls first driver element, second driver element and the 3rd driver element output driving letter
Number.
Embodiments of the invention have the advantages that：
In such scheme, test backlight can send the monochromatic luminescence unit of different colours, Duo Gefa including multiple
The monochromatic light that light unit is sent can be mixed into white light, by adjusting the dutycycle of each luminescence unit correspondence drive signal, energy
Enough adjust each luminescence unit and send monochromatic chromaticity coordinates, and then adjust the color for the white light that multiple luminescence units are mixed into and sit
The adjustable of the chromaticity coordinates for the white light that backlight is sent is tested in mark, realization.It is so independent without the display panel to each type
Design corresponding test backlight, it is possible to use test backlight of the invention is tested different types of display panel,
Only need when testing display panel, the chromaticity coordinates of the white light of adjustment test backlight so that the white light of test backlight
Chromaticity coordinates disclosure satisfy that the test of display panel needs.
Brief description of the drawings
Fig. 1 is the structural representation that the embodiment of the present invention tests backlight；
Fig. 2 is the structural representation that the specific embodiment of the invention tests backlight；
Fig. 3 is the structural representation of controller of the embodiment of the present invention；
Fig. 4 is the schematic flow sheet for the method for work that the embodiment of the present invention tests backlight；
Fig. 5 and Fig. 6 is that the flow for the dutycycle that the embodiment of the present invention adjusts the corresponding drive signal of each luminescence unit is shown
It is intended to；
Fig. 7 is the schematic diagram of the chromaticity coordinates of different colours light of the embodiment of the present invention.
Embodiment
To make embodiments of the invention technical problem, technical scheme and the advantage to be solved clearer, below in conjunction with
Drawings and the specific embodiments are described in detail.
Embodiments of the invention provide a kind of test backlight and its method of work, the test equipment of display panel, can
When testing display panel, the chromaticity coordinates of the backlight of adjustment test in real time.
Embodiment one
Existing test backlight normally only includes a kind of luminescence unit of color, and the test backlight of the present embodiment is such as
Shown in Fig. 1, including it is multiple can send the luminescence unit 11 of different colours, the monochromatic light that multiple luminescence units 11 are sent can be mixed
Synthesize white light；The test backlight of the present embodiment also includes：
Drive signal is provided to each luminescence unit to drive the drive circuit 12 that correspondence luminescence unit is lighted, its
In, the dutycycle of drive signal is adjustable；
The dutycycle of the corresponding drive signal of each luminescence unit can be adjusted so that it is white that multiple luminescence units are mixed into
The chromaticity coordinates of light reaches the controller 13 of default chromaticity coordinates.
The test backlight of the present embodiment include it is multiple can send the monochromatic luminescence unit of different colours, it is multiple luminous
The monochromatic light that unit is sent can be mixed into white light, can by adjusting the dutycycle of each luminescence unit correspondence drive signal
Adjust each luminescence unit and send monochromatic chromaticity coordinates, and then adjust the color for the white light that multiple luminescence units are mixed into and sit
The adjustable of the chromaticity coordinates for the white light that backlight is sent is tested in mark, realization.It is so independent without the display panel to each type
Design corresponding test backlight, it is possible to use test backlight of the invention is tested different types of display panel,
Only need when testing display panel, the chromaticity coordinates of the white light of adjustment test backlight so that the white light of test backlight
Chromaticity coordinates disclosure satisfy that the test of display panel needs.
In specific embodiment, as shown in Fig. 2 the multiple luminescence unit 11 can include：
Monochromatic first luminescence unit 111 of the first color can be sent；
Monochromatic second luminescence unit 112 of the second color can be sent；
Monochromatic 3rd luminescence unit 113 of the 3rd color can be sent；
The drive circuit 12 includes：
First driver element 121 of drive signal is provided to first luminescence unit；
Second driver element 122 of drive signal is provided to second luminescence unit；
3rd driver element 123 of drive signal is provided to the 3rd luminescence unit；
The controller 13 specifically for adjusting the driving that each driver element is exported respectively according to the default chromaticity coordinates
The dutycycle of signal；
Wherein, the first color monochromatic light, the second color monochromatic light, the 3rd color monochromatic light can be mixed into white light.
Specifically, the first color is red, and the second color is green, and the 3rd color is blueness.Certain first color, second
Color and the 3rd color are not limited to using red, green and blueness, can also be other colors, as long as the first color,
The monochromatic light that second color and the 3rd color are sent can be mixed into white light, such as, the first color, the second color and the 3rd
Color can also be respectively yellow, magenta and cyan.
By adjusting the dutycycle of the corresponding drive signal of each luminescence unit, the monochrome that luminescence unit is sent can be adjusted
The chromaticity coordinates of light, and then adjust the chromaticity coordinates for the white light that multiple luminescence units are mixed into.
In one specific embodiment, it can be compared by the chromaticity coordinates current with test backlight, drive signal is entered
Row adjustment, as shown in figure 3, the controller includes：
Comparing unit 131, being compared with the default chromaticity coordinates for will test the current chromaticity coordinates of backlight, obtaining
Difference between the current chromaticity coordinates and the default chromaticity coordinates；
Computing unit 132, for calculating first luminescence unit, second luminescence unit respectively according to the difference
With the chromaticity coordinates adjustment amount of the 3rd luminescence unit, and it is single according to the chromaticity coordinates adjustment amount to calculate first driving respectively
The drive signal dutycycle adjustment amount of first, described second driver element and the 3rd driver element；
Adjustment unit 133, for single to the described first driving respectively according to the drive signal dutycycle adjustment amount calculated
The dutycycle for the drive signal that first, described second driver element and the 3rd driver element are currently exported is adjusted.
, can be by being compared control output drive signal with reference color coordinates, such as Fig. 3 institutes in another specific embodiment
Show, the controller includes：
Comparing unit 131, for reference color coordinates to be compared with the default chromaticity coordinates, obtains the reference colours and sits
Difference between mark and the default chromaticity coordinates；
Computing unit 132, for calculating first luminescence unit, second luminescence unit respectively according to the difference
With the chromaticity coordinates of the 3rd luminescence unit, and first driver element, described second are calculated according to the chromaticity coordinates respectively
The drive signal dutycycle of driver element and the 3rd driver element；
Control unit 133, for according to first driver element calculated, second driver element and described the
First driver element, second driver element and the 3rd driving described in the drive signal Duty ratio control of three driver elements
Unit output drive signal.
Specifically, the luminescence unit can use LED.
Embodiment two
Present embodiments provide a kind of test equipment of display panel, including test backlight as described above.
The test backlight of the present embodiment test equipment can send the monochromatic luminescence unit of different colours including multiple,
The monochromatic light that multiple luminescence units are sent can be mixed into white light, by the duty for adjusting each luminescence unit correspondence drive signal
Than that can adjust each luminescence unit and send monochromatic chromaticity coordinates, and then adjust the white light that multiple luminescence units are mixed into
Chromaticity coordinates, realize the adjustable of the chromaticity coordinates of white light that test backlight is sent.So without the display surface to each type
The individually designed corresponding test backlight of plate, it is possible to use test backlight of the invention is carried out to different types of display panel
Test, it is only necessary to when testing display panel, the chromaticity coordinates of the white light of adjustment test backlight so that test the white of backlight
The chromaticity coordinates of light disclosure satisfy that the test of display panel needs.
Embodiment three
A kind of method of work for testing backlight is present embodiments provided, backlight is tested applied to as described above, such as
Shown in Fig. 4, methods described includes：
Step 201：Adjust the dutycycle of the corresponding drive signal of each luminescence unit so that multiple luminescence units are mixed into
The chromaticity coordinates of white light reach default chromaticity coordinates.
In the present embodiment, test backlight can send the monochromatic luminescence unit of different colours, Duo Gefa including multiple
The monochromatic light that light unit is sent can be mixed into white light, by adjusting the dutycycle of each luminescence unit correspondence drive signal, energy
Enough adjust each luminescence unit and send monochromatic chromaticity coordinates, and then adjust the color for the white light that multiple luminescence units are mixed into and sit
The adjustable of the chromaticity coordinates for the white light that backlight is sent is tested in mark, realization.It is so independent without the display panel to each type
Design corresponding test backlight, it is possible to use test backlight of the invention is tested different types of display panel,
Only need when testing display panel, the chromaticity coordinates of the white light of adjustment test backlight so that the white light of test backlight
Chromaticity coordinates disclosure satisfy that the test of display panel needs.
In one specific embodiment, it can be compared by the chromaticity coordinates current with test backlight, drive signal is entered
Row adjustment, as shown in figure 5, the dutycycle of the corresponding drive signal of each luminescence unit of adjustment includes：
Step 301：The current chromaticity coordinates of backlight will be tested to be compared with the default chromaticity coordinates, obtain described current
Chromaticity coordinates and the default chromaticity coordinates between difference；
Step 302：First luminescence unit, second luminescence unit and described are calculated according to the difference respectively
The chromaticity coordinates adjustment amount of three luminescence units, and first driver element calculated according to the chromaticity coordinates adjustment amount respectively, it is described
The drive signal dutycycle adjustment amount of second driver element and the 3rd driver element；
Step 303：According to the drive signal dutycycle adjustment amount calculated respectively to first driver element, described
The dutycycle for the drive signal that two driver elements and the 3rd driver element are currently exported is adjusted.
, can be by being compared control output drive signal with reference color coordinates, such as Fig. 6 institutes in another specific embodiment
Show, the dutycycle for adjusting the corresponding drive signal of each luminescence unit includes：
Step 401：Reference color coordinates are compared with the default chromaticity coordinates, obtain the reference color coordinates with it is described
Difference between default chromaticity coordinates；
Step 402：First luminescence unit, second luminescence unit and described are calculated according to the difference respectively
The chromaticity coordinates of three luminescence units, and first driver element, second driver element are calculated according to the chromaticity coordinates respectively
With the drive signal dutycycle of the 3rd driver element；
Step 403：It is single according to first driver element calculated, second driver element and the 3rd driving
First driver element, second driver element and the 3rd driver element output described in the drive signal Duty ratio control of member
Drive signal.
In one embodiment, luminescence unit includes emitting red light unit, green emitting unit and blue-light-emitting unit,
Drive circuit can provide drive signal to the luminescence unit of each color, by adjusting the corresponding driving of each luminescence unit
The dutycycle of signal, can adjust the monochromatic chromaticity coordinates that luminescence unit is sent, and then the multiple luminescence units of adjustment are mixed into
White light chromaticity coordinates.
It is illustrated in figure 7 four coordinates in the gamut map of some test backlight different colours light, figure：R(x1,y1), G
(x2,y2), B (x3,y3) red light, green light, the chromaticity coordinates of blue light, W (x are not represented0,y0) represent white light reference colours sit
Mark, W (x are adjusted in the chromaticity coordinates for needing the white light by backlight is testedn,yn) when, first determine whether and W (x0,y0) difference
It is different, then decompose RGB three primary colours, by mathematical modeling determine red light, green light, the chromaticity coordinates of blue light adjustment amount,
Finally by the dutycycle of the drive signal of adjustment correspondence luminescence unit, to realize the purpose of accurate adjustment chromaticity coordinates.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, on the premise of principle of the present invention is not departed from, some improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. one kind test backlight, it is characterised in that including：
Multiple to send the luminescence unit of different colours, the monochromatic light that multiple luminescence units are sent can be mixed into white light；
Drive signal is provided to drive the drive circuit that correspondence luminescence unit is lighted to each luminescence unit, wherein, driving
The dutycycle of signal is adjustable；
The dutycycle of the corresponding drive signal of each luminescence unit can be adjusted so that the white light that multiple luminescence units are mixed into
Chromaticity coordinates reaches the controller of default chromaticity coordinates.
2. test backlight according to claim 1, it is characterised in that the multiple luminescence unit includes：
Monochromatic first luminescence unit of the first color can be sent；
Monochromatic second luminescence unit of the second color can be sent；
Monochromatic 3rd luminescence unit of the 3rd color can be sent；
The drive circuit includes：
First driver element of drive signal is provided to first luminescence unit；
Second driver element of drive signal is provided to second luminescence unit；
3rd driver element of drive signal is provided to the 3rd luminescence unit；
The controller specifically for adjusting the drive signal that each driver element is exported respectively according to the default chromaticity coordinates
Dutycycle；
Wherein, the first color monochromatic light, the second color monochromatic light, the 3rd color monochromatic light can be mixed into white light.
3. test backlight according to claim 2, it is characterised in that the controller includes：
Comparing unit, is compared for will test the current chromaticity coordinates of backlight with the default chromaticity coordinates, obtains described work as
Difference between preceding chromaticity coordinates and the default chromaticity coordinates；
Computing unit, for calculating first luminescence unit, second luminescence unit and described respectively according to the difference
The chromaticity coordinates adjustment amount of 3rd luminescence unit, and first driver element, institute are calculated according to the chromaticity coordinates adjustment amount respectively
State the drive signal dutycycle adjustment amount of the second driver element and the 3rd driver element；
Adjustment unit, for according to the drive signal dutycycle adjustment amount that calculates respectively to first driver element, described
The dutycycle for the drive signal that second driver element and the 3rd driver element are currently exported is adjusted.
4. test backlight according to claim 2, it is characterised in that the controller includes：
Comparing unit, for reference color coordinates to be compared with the default chromaticity coordinates, obtains the reference color coordinates and institute
State the difference between default chromaticity coordinates；
Computing unit, for calculating first luminescence unit, second luminescence unit and described respectively according to the difference
The chromaticity coordinates of 3rd luminescence unit, and first driver element, the second driving list are calculated according to the chromaticity coordinates respectively
The drive signal dutycycle of first and described 3rd driver element；
Control unit, for according to first driver element, second driver element and the 3rd driving calculated
The first driver element, second driver element and the 3rd driver element are defeated described in the drive signal Duty ratio control of unit
Go out drive signal.
5. the test backlight according to any one of claim 2-4, it is characterised in that first color is red,
Second color is green, and the 3rd color is blueness.
6. the test backlight according to any one of claim 1-4, it is characterised in that the luminescence unit is LED.
7. a kind of test equipment of display panel, it is characterised in that including the test back of the body as any one of claim 1-6
Light source.
8. a kind of method of work for testing backlight, it is characterised in that applied to the survey as any one of claim 1-6
Backlight is tried, methods described includes：
Adjust the dutycycle of the corresponding drive signal of each luminescence unit so that the color for the white light that multiple luminescence units are mixed into is sat
Mark reaches default chromaticity coordinates.
9. the method for work of test backlight according to claim 8, it is characterised in that applied to such as claim 2 institute
The test backlight stated, the dutycycle of the corresponding drive signal of each luminescence unit of adjustment includes：
The current chromaticity coordinates of backlight will be tested to be compared with the default chromaticity coordinates, the current chromaticity coordinates and institute is obtained
State the difference between default chromaticity coordinates；
First luminescence unit, second luminescence unit and the 3rd luminescence unit are calculated according to the difference respectively
Chromaticity coordinates adjustment amount, and first driver element, second driver element are calculated according to the chromaticity coordinates adjustment amount respectively
With the drive signal dutycycle adjustment amount of the 3rd driver element；
According to the drive signal dutycycle adjustment amount calculated respectively to first driver element, second driver element and
The dutycycle for the drive signal that 3rd driver element is currently exported is adjusted.
10. the method for work of test backlight according to claim 8, it is characterised in that applied to such as claim 2 institute
The test backlight stated, the dutycycle of the corresponding drive signal of each luminescence unit of adjustment includes：
Reference color coordinates are compared with the default chromaticity coordinates, obtain the reference color coordinates and the default chromaticity coordinates it
Between difference；
First luminescence unit, second luminescence unit and the 3rd luminescence unit are calculated according to the difference respectively
Chromaticity coordinates, and first driver element, second driver element and the 3rd drive are calculated according to the chromaticity coordinates respectively
The drive signal dutycycle of moving cell；
According to the drive signal of first driver element, second driver element and the 3rd driver element calculated
First driver element, second driver element and the 3rd driver element output drive signal described in Duty ratio control.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137330.9A CN107068023A (en) | 2017-03-09 | 2017-03-09 | Test backlight and its method of work, the test equipment of display panel |
| PCT/CN2018/077258 WO2018161814A1 (en) | 2017-03-09 | 2018-02-26 | Testing backlight source and operation method thereof, and testing device for display panel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710137330.9A CN107068023A (en) | 2017-03-09 | 2017-03-09 | Test backlight and its method of work, the test equipment of display panel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018161814A1 (en) * | 2017-03-09 | 2018-09-13 | 京东方科技集团股份有限公司 | Testing backlight source and operation method thereof, and testing device for display panel |
| CN111899310A (en) * | 2020-09-30 | 2020-11-06 | 歌尔光学科技有限公司 | Projection lens duty ratio adjusting method, device, equipment and computer storage medium |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645206A (en) * | 2005-01-11 | 2005-07-27 | 友达光电股份有限公司 | Mixed light controlling unit |
| CN1652655A (en) * | 2004-05-21 | 2005-08-10 | 友达光电股份有限公司 | Illuminating device, system and controlling method thereof |
| CN101467490A (en) * | 2006-06-09 | 2009-06-24 | 飞利浦拉米尔德斯照明设备有限责任公司 | Led backlight for LCD with color uniformity recalibration over lifetime |
| CN101604077A (en) * | 2008-06-10 | 2009-12-16 | 乐金显示有限公司 | A kind of proving installation of LCD MODULE |
| CN101707052A (en) * | 2009-12-09 | 2010-05-12 | 安徽华东光电技术研究所 | RGB-based method for adjusting white balance of LED backlight |
| WO2012099157A1 (en) * | 2011-01-19 | 2012-07-26 | 京セラ株式会社 | Electronic device and chromaticity adjustment method |
| CN202584095U (en) * | 2012-05-17 | 2012-12-05 | 中国长城计算机深圳股份有限公司 | Computer and display debug system thereof |
| US20130141409A1 (en) * | 2011-12-01 | 2013-06-06 | Tanahashi Kosei | Gamma correction method |
| CN105096843A (en) * | 2015-08-19 | 2015-11-25 | 京东方科技集团股份有限公司 | Backlight source, adjustment method and adjustment device thereof and display device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068023A (en) * | 2017-03-09 | 2017-08-18 | 北京京东方专用显示科技有限公司 | Test backlight and its method of work, the test equipment of display panel |
-
2017
- 2017-03-09 CN CN201710137330.9A patent/CN107068023A/en active Pending
-
2018
- 2018-02-26 WO PCT/CN2018/077258 patent/WO2018161814A1/en active Application Filing
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1652655A (en) * | 2004-05-21 | 2005-08-10 | 友达光电股份有限公司 | Illuminating device, system and controlling method thereof |
| CN1645206A (en) * | 2005-01-11 | 2005-07-27 | 友达光电股份有限公司 | Mixed light controlling unit |
| CN101467490A (en) * | 2006-06-09 | 2009-06-24 | 飞利浦拉米尔德斯照明设备有限责任公司 | Led backlight for LCD with color uniformity recalibration over lifetime |
| CN101604077A (en) * | 2008-06-10 | 2009-12-16 | 乐金显示有限公司 | A kind of proving installation of LCD MODULE |
| CN101707052A (en) * | 2009-12-09 | 2010-05-12 | 安徽华东光电技术研究所 | RGB-based method for adjusting white balance of LED backlight |
| WO2012099157A1 (en) * | 2011-01-19 | 2012-07-26 | 京セラ株式会社 | Electronic device and chromaticity adjustment method |
| US20130141409A1 (en) * | 2011-12-01 | 2013-06-06 | Tanahashi Kosei | Gamma correction method |
| CN202584095U (en) * | 2012-05-17 | 2012-12-05 | 中国长城计算机深圳股份有限公司 | Computer and display debug system thereof |
| CN105096843A (en) * | 2015-08-19 | 2015-11-25 | 京东方科技集团股份有限公司 | Backlight source, adjustment method and adjustment device thereof and display device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018161814A1 (en) * | 2017-03-09 | 2018-09-13 | 京东方科技集团股份有限公司 | Testing backlight source and operation method thereof, and testing device for display panel |
| CN111899310A (en) * | 2020-09-30 | 2020-11-06 | 歌尔光学科技有限公司 | Projection lens duty ratio adjusting method, device, equipment and computer storage medium |
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| Publication number | Publication date |
|---|---|
| WO2018161814A1 (en) | 2018-09-13 |
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