CN103377621A - Backlight adjusting system and backlight adjusting method - Google Patents
Backlight adjusting system and backlight adjusting method Download PDFInfo
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- CN103377621A CN103377621A CN2012101136194A CN201210113619A CN103377621A CN 103377621 A CN103377621 A CN 103377621A CN 2012101136194 A CN2012101136194 A CN 2012101136194A CN 201210113619 A CN201210113619 A CN 201210113619A CN 103377621 A CN103377621 A CN 103377621A
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- exposure value
- backlight
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- control unit
- camera exposure
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Abstract
A system and a backlight adjusting method are provided and are suitable for a backlight module. The backlight adjusting method includes the following steps that a camera exposure value sensing unit of a camera module transmits a camera exposure value signal to a micro-control unit after an ambient light source sensed by the camera exposure value sensing unit; the micro-control unit, according to a signal contrast table of a camera exposure value and backlight brightness, transmit a backlight brightness signal corresponding to the camera exposure value signal to a backlight module driving unit; and the backlight module driving unit drives and controls the brightness of the backlight module. The signal contrast table of the camera exposure value and the backlight brightness is stored in a memory unit.
Description
Technical field
The present invention relates to a kind of Adjustment System and method, particularly a kind of back light adjusting system and method.
Background technology
Science and technology is maked rapid progress, and increasing electronic product all is integrated into commodity, and is more convenient to allow the consumer use; For example intelligent mobile phone or mobile computer all are equiped with network camera (webcam) simultaneously, and the backlight module (making user's eyes more comfortable, also comparatively power saving) that can automatically adjust according to environment light source backlight illumination.
Automatically the function of adjusting exposure value behind the induction environment light source is arranged in the above-mentioned network camera, can automatically adjust in the backlight module of backlight illumination according to environment light source and then include optical inductor, use the brightness of induced environment light source and automatically adjust the brightness of backlight module; So, have mostly simultaneously network camera and optical inductor element in the existing product, use number of elements and improve the producer's manufacturing cost increasing.
Therefore, replace the optical inductor function such as the exposure value of light sensing that can be by network camera, not only can integrate the light sensing function of before-mentioned products, also can save the circuit component cost of optical inductor.
Summary of the invention
For improving the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of back light adjusting system.
For improving the shortcoming of above-mentioned prior art, a further object of the present invention is to provide a kind of backlight adjusting method.
For reaching above-mentioned purpose of the present invention, the invention provides a kind of back light adjusting system and be applicable to a backlight module, this back light adjusting system comprises: a micro-control unit; One camera exposure value sensing unit is electrically connected to this micro-control unit; One backlight module driver element is electrically connected to this micro-control unit and this backlight module, in order to drive this backlight module; And a mnemon, be electrically connected to this micro-control unit, in order to store the signal table of comparisons of a camera exposure value and backlight illumination.Behind this camera exposure value sensing units sense environment light source, transmit a camera exposure value signal to this micro-control unit; This micro-control unit according to the signal table of comparisons of this camera exposure value and backlight illumination transmit to a backlight illumination signal that should the camera exposure value signal to this backlight module driver element to drive and to control the brightness of this backlight module.
For reaching above-mentioned purpose of the present invention, the present invention also provides a kind of back light adjusting system to be applicable to a backlight module, and this back light adjusting system comprises: a micro-control unit; One camera model has a camera exposure value sensing unit, is electrically connected to this micro-control unit; One backlight module driver element is electrically connected to this micro-control unit and this backlight module, in order to drive this backlight module; And a mnemon, be electrically connected to this micro-control unit, in order to store the signal table of comparisons of a camera exposure value and backlight illumination.Behind this camera exposure value sensing units sense environment light source, transmit a camera exposure value signal to this micro-control unit; This micro-control unit according to the signal table of comparisons of this camera exposure value and backlight illumination transmit to a backlight illumination signal that should the camera exposure value signal to this backlight module driver element to drive and to control the brightness of this backlight module.
Wherein this camera model also comprises a lens unit, arranges with respect to this camera exposure value sensing unit.
For reaching above-mentioned purpose of the present invention, the invention provides a kind of backlight adjusting method and be applicable to a backlight module, this backlight adjusting method comprises following steps: after the camera exposure value sensing units sense environment light source of a camera model, transmit camera exposure value signal to a micro-control unit; This micro-control unit according to the signal table of comparisons transmission of a camera exposure value and backlight illumination to backlight illumination signal to a backlight module driver element that should the camera exposure value signal; This backlight module drive unit drives is also controlled the brightness of this backlight module.Wherein, the signal table of comparisons of this camera exposure value and backlight illumination is stored in a mnemon.
Effect of the present invention is to utilize the exposure value of camera model to adjust the backlight illumination of backlight module, and can save the optical inductor of backlight module.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Fig. 1 is an embodiment block scheme of back light adjusting system of the present invention;
Fig. 2 is another embodiment block scheme of back light adjusting system of the present invention;
Fig. 3 is backlight adjusting method process flow diagram of the present invention;
Fig. 4 is that an embodiment of the signal table of comparisons of camera exposure value of the present invention and backlight illumination contrasts form.
Wherein, Reference numeral
Back light adjusting system 10
Camera exposure value sensing unit 104
Backlight module driver element 106
Mnemon 108
Camera exposure value signal 302
Camera exposure value signal and the backlight illumination signal table of comparisons 304
Step S02～10
Embodiment
Below in conjunction with accompanying drawing structural principle of the present invention and principle of work are done concrete description:
Please refer to Fig. 1, it is an embodiment block scheme of back light adjusting system of the present invention.One back light adjusting system 10 is applicable to a backlight module 20 so that the back light of a display (scheming not show, for example the liquid crystal display of intelligent mobile phone or mobile computer) to be provided; This back light adjusting system 10 comprises a micro-control unit 102, a camera exposure value sensing unit 104, a backlight module driver element 106 and a mnemon 108.
This camera exposure value sensing unit 104 is electrically connected to this micro-control unit 102; This backlight module driver element 106 is electrically connected to this micro-control unit 102 and this backlight module 20; This mnemon 108 is electrically connected to this micro-control unit 102.
This backlight module driver element 106 is in order to drive this backlight module 20; This mnemon 108 is in order to store the signal table of comparisons 304 of a camera exposure value and backlight illumination.
Behind these camera exposure value sensing unit 104 induced environment light sources, transmit a camera exposure value signal 302 to this micro-control unit 102; This micro-control unit 102 according to the signal table of comparisons 304 of this camera exposure value and backlight illumination transmit to a backlight illumination signal 306 that should camera exposure value signal 302 to this backlight module driver element 106 to drive and to control the brightness of this backlight module 20.
Please refer to Fig. 4, its embodiment for the signal table of comparisons of camera exposure value of the present invention and backlight illumination contrasts form.For example when environment light source was brighter, the grade of this camera exposure value signal 302 was 14 for example, can find corresponding backlight illumination signal 306 to be darker 30cd/m when corresponding to the signal table of comparisons 304 of this camera exposure value and backlight illumination
2, by this when environment light source is brighter, but these backlight module 20 Dimmings show, saved power supply and allow the user obtain the better brightness of browsing.
For example when environment light source is moderate, the grade of this camera exposure value signal 302 is 5 for example again, can find this corresponding backlight illumination signal 306 to be moderate 120cd/m when corresponding to the signal table of comparisons 304 of this camera exposure value and backlight illumination
2, when environment light source was moderate, it also was moderate that these backlight module 20 brightness show, allows the user obtain the better brightness of browsing by this.
For example when environment light source is darker, the grade of this camera exposure value signal 302 is-4 for example again, can find this corresponding backlight illumination signal 306 to be brighter 210cd/m when corresponding to the signal table of comparisons 304 of this camera exposure value and backlight illumination
2, when environment light source is darker, this backlight module 20 will improve brightness and show, allow the user obtain the better brightness of browsing by this.
This micro-control unit 102 can be a for example operating system (operating system); This mnemon 108 can be a for example memory body.
Please refer to Fig. 2, it is another embodiment block scheme of back light adjusting system of the present invention.Present embodiment is different from Fig. 1 to be, also comprises a camera model 110; This camera model 110 comprises a camera exposure value sensing unit 104, a lens unit 112 and other are existing camera components (not shown).This camera model 110 is electrically connected to this micro-control unit 102; This lens unit 112 arranges with respect to this camera exposure value sensing unit 104.The locating of present embodiment and Fig. 1 identical content repeats no more.
Please refer to Fig. 3, it is backlight adjusting method process flow diagram of the present invention.Backlight adjusting method of the present invention is applied to a backlight module so that the back light of a display (for example liquid crystal display of intelligent mobile phone or mobile computer) to be provided; This backlight adjusting method comprises the following step:
S02: behind the camera exposure value sensing units sense environment light source of a camera model, transmit camera exposure value signal to a micro-control unit.Then enter step S04.
S04: whether this camera exposure value signal correct? if wrong (for example this camera model is not yet opened) then enters step S06; If correct, then enter step S08.
S06: this micro-control unit is opened this camera model.Then get back to step S02.
S08: this micro-control unit according to the signal table of comparisons transmission of a camera exposure value and backlight illumination to backlight illumination signal to a backlight module driver element that should the camera exposure value signal.Then enter step S10.
S10: this backlight module drive unit drives is also controlled the brightness of this backlight module.
By back light adjusting system of the present invention and method, aforementioned camera model (or camera exposure value sensing unit) then need not be held open state for a long time, uses and can save power supply; Also namely, when the user need to adjust the brightness of backlight module, micro-control unit was just opened camera model.
The effect of back light adjusting system of the present invention and method is to utilize the exposure value of camera model to adjust the backlight illumination of backlight module, and can save the optical inductor element (optical inductor that also namely, does not need backlight module) that backlight module is set.
Certainly; the present invention also can have other various embodiments; in the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.
Claims (10)
1. a back light adjusting system is applicable to a backlight module, it is characterized in that, this back light adjusting system comprises:
One micro-control unit;
One camera exposure value sensing unit is electrically connected to this micro-control unit;
One backlight module driver element is electrically connected to this micro-control unit and this backlight module, in order to drive this backlight module; And
One mnemon is electrically connected to this micro-control unit, in order to storing the signal table of comparisons of a camera exposure value and backlight illumination,
Wherein, behind this camera exposure value sensing units sense environment light source, transmit a camera exposure value signal to this micro-control unit; This micro-control unit according to the signal table of comparisons of this camera exposure value and backlight illumination transmit to a backlight illumination signal that should the camera exposure value signal to this backlight module driver element to drive and to control the brightness of this backlight module.
2. back light adjusting system according to claim 1 is characterized in that, this micro-control unit is an operating system, and this mnemon is a memory body.
3. a back light adjusting system is applicable to a backlight module, it is characterized in that, this back light adjusting system comprises:
One micro-control unit;
One camera model has a camera exposure value sensing unit, is electrically connected to this micro-control unit;
One backlight module driver element is electrically connected to this micro-control unit and this backlight module, in order to drive this backlight module; And
One mnemon is electrically connected to this micro-control unit, in order to storing the signal table of comparisons of a camera exposure value and backlight illumination,
Wherein, behind this camera exposure value sensing units sense environment light source, transmit a camera exposure value signal to this micro-control unit; This micro-control unit according to the signal table of comparisons of this camera exposure value and backlight illumination transmit to a backlight illumination signal that should the camera exposure value signal to this backlight module driver element to drive and to control the brightness of this backlight module.
4. back light adjusting system according to claim 3 is characterized in that, this camera model also comprises a lens unit, arranges with respect to this camera exposure value sensing unit.
5. back light adjusting system according to claim 4 is characterized in that, this micro-control unit is an operating system, and this mnemon is a memory body.
6. back light adjusting system according to claim 5 is characterized in that, this camera model is a network camera.
7. a backlight adjusting method is applicable to a backlight module, it is characterized in that, this backlight adjusting method comprises:
A. after the camera exposure value sensing units sense environment light source of a camera model, transmit camera exposure value signal to a micro-control unit;
B. this micro-control unit according to the signal table of comparisons transmission of a camera exposure value and backlight illumination to backlight illumination signal to a backlight module driver element that should the camera exposure value signal; And
C. this backlight module drive unit drives and control the brightness of this backlight module,
Wherein, the signal table of comparisons of this camera exposure value and backlight illumination is stored in a mnemon.
8. backlight adjusting method according to claim 4 is characterized in that, also comprises after step a:
If this camera exposure value signal mistake a1., then this micro-control unit is opened this camera model.
9. backlight adjusting method according to claim 8 is characterized in that, this camera model is a network camera, and this camera model also comprises a lens unit.
10. backlight adjusting method according to claim 9 is characterized in that, this micro-control unit is an operating system, and this mnemon is a memory body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210113619.4A CN103377621B (en) | 2012-04-18 | 2012-04-18 | Back light adjusting system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210113619.4A CN103377621B (en) | 2012-04-18 | 2012-04-18 | Back light adjusting system and method |
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| Publication Number | Publication Date |
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| CN103377621A true CN103377621A (en) | 2013-10-30 |
| CN103377621B CN103377621B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210113619.4A Expired - Fee Related CN103377621B (en) | 2012-04-18 | 2012-04-18 | Back light adjusting system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601808A (en) * | 2014-12-30 | 2015-05-06 | 西安乾易企业管理咨询有限公司 | Method for automatically adjusting screen luminance by detecting environment light through mobile phone camera |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030198466A1 (en) * | 2002-04-19 | 2003-10-23 | Bianchi Mark John | Adaptive control of LCD display utilizing imaging sensor measurements |
| CN101079238A (en) * | 2006-05-22 | 2007-11-28 | 明基电通股份有限公司 | Hand-held electronic device for automatically regulating backlight brightness and backlight brightness regulation method |
-
2012
- 2012-04-18 CN CN201210113619.4A patent/CN103377621B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030198466A1 (en) * | 2002-04-19 | 2003-10-23 | Bianchi Mark John | Adaptive control of LCD display utilizing imaging sensor measurements |
| CN101079238A (en) * | 2006-05-22 | 2007-11-28 | 明基电通股份有限公司 | Hand-held electronic device for automatically regulating backlight brightness and backlight brightness regulation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104601808A (en) * | 2014-12-30 | 2015-05-06 | 西安乾易企业管理咨询有限公司 | Method for automatically adjusting screen luminance by detecting environment light through mobile phone camera |
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| CN103377621B (en) | 2016-08-17 |
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Granted publication date: 20160817 Termination date: 20170418 |