CN102023462A - Micro-projector and brightness adjustment method thereof as well as portable device - Google Patents
Micro-projector and brightness adjustment method thereof as well as portable device Download PDFInfo
- Publication number
- CN102023462A CN102023462A CN2009100920879A CN200910092087A CN102023462A CN 102023462 A CN102023462 A CN 102023462A CN 2009100920879 A CN2009100920879 A CN 2009100920879A CN 200910092087 A CN200910092087 A CN 200910092087A CN 102023462 A CN102023462 A CN 102023462A
- Authority
- CN
- China
- Prior art keywords
- brightness
- power supply
- supply adaptor
- output
- register
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Projection Apparatus (AREA)
Abstract
The embodiment of the invention discloses a micro-projector and a brightness adjustment method thereof as well as a portable device. The micro-projector comprises an input power identification unit, a brightness setting unit and a brightness adjustment unit, wherein the input power identification unit is used for identifying the output power of a power adapter; the brightness setting unit is used for setting the brightness of the micro-projector according to the input power of the power adapter identified by the input power identification unit; and the brightness adjustment unit is used for adjusting the brightness output by the micro-projector to the brightness set by the brightness setting unit. According to the embodiment of the invention, the brightness of the micro-projector can be adjusted according to the output power of the power adaptor.
Description
Technical field
The present invention relates to the minitype projection machine technical field, relate in particular to method and a kind of portable set of a kind of minitype projection machine, its adjusting brightness.
Background technology
Minitype projection machine is much smaller than common projector size, is convenient to the user and carries.It adopts fixing brightness output when design, and will be equipped with the fixedly power supply adaptor of output power.For example: if the brightness settings of minitype projection machine be high lumen (for example: 100 lumens), then need to be equipped with output power and be 90 watts power supply adaptor, if the brightness settings of minitype projection machine for low lumen (for example: 75 lumens), then need to be equipped with output power and be 65 watts power supply adaptor.
The inventor finds in research process, the output power of power supply adaptor is fixed, for example: 90 watts or 65 watts, for having the user that output power is 65 watts a power supply adaptor, want to use the minitype projection machine of high lumen, also must be equipped with an output power again and be 90 watts power supply adaptor, otherwise, output power is the performance that 65 watts power supply adaptor can influence the minitype projection machine of high lumen, and output power is that 65 watts power supply adaptor also can be owing to safety problem appears in overwork.
Summary of the invention
In view of this, the embodiment of the invention provides method and a kind of portable set of a kind of minitype projection machine, its adjusting brightness, can regulate brightness according to the output power of power supply adaptor.
A kind of minitype projection machine, described minitype projection machine comprises:
Input power supply recognition unit is used to discern the output power of the power supply adaptor of input;
The brightness settings unit, the output power that is used for the described power supply adaptor that identifies according to described input power supply recognition unit is set the brightness of minitype projection machine;
The brightness adjustment unit is used for the brightness of described minitype projection machine output is adjusted into the brightness that described brightness settings unit is set.
Preferably, described input power supply recognition unit comprises:
Detecting unit is used for the output pin of described power supply adaptor is detected;
Input power supply recognin unit, be used for when output pin that described detecting unit detects described power supply adaptor is low level, the power that identifies described power supply adaptor is first numerical value, when the output pin that detects described power supply adaptor when described detecting unit was unsettled or high level, the power that identifies described power supply adaptor was second value.
Preferably, described brightness settings unit comprises:
The register value setup unit, the output power that is used for identifying according to described input power supply recognition unit is set the numerical value of the register of light emitting diode;
The brightness settings subelement is used for the numerical value according to described register value setup unit setting, sets the brightness of described minitype projection machine.
Preferably, described brightness settings unit comprises:
The change-over switch unit, be used for selecting first group of register or second group of register according to the output power that described input power supply recognition unit identifies, the numerical value of described first group of register is used to make the display brightness of light emitting diode to be in first state, and the numerical value of described second group of register is used to make the display brightness of described light emitting diode to be in second state;
Onunit is used for described first group of register or the described second group of described light emitting diode of register conducting selected according to described change-over switch unit.
Preferably, described brightness adjustment unit comprises:
The first brightness adjustment unit, the brightness that is used for the light emitting diode set according to described brightness settings unit is adjusted into high lumen with the brightness of described minitype projection machine output;
The second brightness adjustment unit, the brightness that is used for the light emitting diode set according to described brightness settings unit is adjusted into low lumen with the brightness of described minitype projection machine output.
A kind of portable set, described portable set comprises minitype projection machine, described portable set comprises:
Input power supply recognition unit is used to discern the output power of the power supply adaptor of input;
The brightness settings unit, the output power that is used for the described power supply adaptor that identifies according to described input power supply recognition unit is set the brightness of minitype projection machine;
The brightness adjustment unit is used for the brightness of described minitype projection machine output is adjusted into the brightness that described brightness settings unit is set.
A kind of minitype projection machine is adjusted the method for brightness, and described method comprises:
The output power of the power supply adaptor of identification input;
Output power according to described power supply adaptor is set brightness;
The brightness of output is adjusted into the brightness of described setting.
Preferably, the power of the power supply adaptor of described identification input comprises:
Output pin to described power supply adaptor detects;
When the output pin that detects described power supply adaptor is low level, the power that identifies described power supply adaptor is first numerical value, when the output pin that detects described power supply adaptor is unsettled or high level, identify the power second value of described power supply adaptor.
Preferably, described output power setting brightness according to described power supply adaptor comprises:
Set the numerical value of the register of light emitting diode;
According to described numerical value, set the brightness of described light emitting diode.
Preferably, described output power setting brightness according to described power supply adaptor comprises:
Select first group of register or second group of register according to the described output power that identifies, the numerical value of described first group of register is used to make the display brightness of light emitting diode to be in first state, and the numerical value of described second group of register is used to make the display brightness of described light emitting diode to be in second state;
According to described first group of register or the described second group of described light emitting diode of register conducting selected.
Preferably, the described brightness that the brightness of output is adjusted into described setting comprises:
According to the brightness of described light emitting diode, the brightness of exporting is adjusted into high lumen, perhaps, the brightness of exporting is adjusted into low lumen.
As can be seen, in embodiments of the present invention, minitype projection machine can be discerned the output power of power supply adaptor, sets brightness according to the output power of power supply adaptor, and brightness is adjusted into the brightness and the output of setting.Thereby no matter how many output powers of the power supply adaptor that uses of user is, minitype projection machine can be adjusted brightness according to the power of power supply adaptor automatically, not only can avoid the performance of minitype projection machine to be affected owing to power supply adaptor output power deficiency, can also avoid power supply adaptor because safety problem appears in overwork, simultaneously, when if the output power of the power supply adaptor that the user uses and the brightness of minitype projection machine do not match, the user need not specially to have saved use cost for minitype projection machine is equipped with special power supply adaptor.
Description of drawings
A kind of minitype projection machine synoptic diagram that Fig. 1 provides for the embodiment of the invention one;
A kind of minitype projection machine synoptic diagram that Fig. 2 provides for the embodiment of the invention two;
A kind of minitype projection machine that Fig. 3 provides for the embodiment of the invention four is adjusted the method flow diagram of brightness;
A kind of minitype projection machine that Fig. 4 provides for the embodiment of the invention five is adjusted the method flow diagram of brightness.
Embodiment
For above-mentioned feature, the advantage that makes the embodiment of the invention becomes apparent more, be elaborated below in conjunction with embodiment.
Please refer to Fig. 1, a kind of minitype projection machine synoptic diagram for the embodiment of the invention one provides can comprise:
Input power supply recognition unit 101 is used to discern the output power of the power supply adaptor of input;
As can be seen, in embodiments of the present invention, minitype projection machine can be discerned the output power of power supply adaptor, sets brightness according to the output power of power supply adaptor, and brightness is adjusted into the brightness and the output of setting.Thereby no matter how many output powers of the power supply adaptor that uses of user is, minitype projection machine can be adjusted brightness according to the power of power supply adaptor automatically, not only can avoid the performance of minitype projection machine to be affected owing to power supply adaptor output power deficiency, can also avoid power supply adaptor because safety problem appears in overwork, simultaneously, when if the output power of the power supply adaptor that the user uses and the brightness of minitype projection machine do not match, the user need not specially to have saved use cost for minitype projection machine is equipped with special power supply adaptor.
Please refer to Fig. 2, a kind of minitype projection machine synoptic diagram for the embodiment of the invention two provides can comprise:
The access unit 201 of power supply adaptor is used to minitype projection machine that power supply is provided;
Import power supply recognition unit 101, be used to discern the output power of power supply adaptor;
The output of supposing 65 watts power supply adaptor has a stake resistance, and the output of 90 watts power supply adaptor is unsettled or connects high level.When input power supply recognition unit 101 detect power supply adaptor output pin for low level the time, the power that then identifies power supply adaptor is 65 watts, when the output pin that detects power supply adaptor when input power supply recognition unit 101 was unsettled or high level state, the power that then identifies power supply adaptor was 90 watts.
The brightness of minitype projection machine is to be respectively redness, green and blue light emitting diode by 3 colors to open or open respectively realization simultaneously under high frequency.Can control the display brightness of light emitting diode by the register of controlling each light emitting diode, after promptly the numerical value of the register of each light emitting diode was set, the display brightness of light emitting diode promptly was fixed.In embodiments of the present invention, corresponding tables that brightness settings unit 102 is pre-configured, in this corresponding tables, corresponding first output power of first group of numerical value of register, corresponding second output power of second group of numerical value of register.The brightness of two kinds of light emitting diodes is provided by the numerical value that this register is set.Be that the power supply adaptor that 90 watts power supply adaptor and output power are 65 watts is an example still, suppose in corresponding tables, corresponding 90 watts of first group of numerical value of register, corresponding 65 watts of second group of numerical value of register with output power.When the power supply adaptor that identifies is that output power is when being 90 watts power supply adaptor, this corresponding tables is searched in brightness settings unit 102, select first group of numerical value, when the power supply adaptor that identifies is that output power is when being 65 watts power supply adaptor, this corresponding tables is searched in brightness settings unit 102, selects second group of numerical value.For example: first group of numerical value supposing this register is respectively 40,26,45, and each register is corresponding red, green respectively in this register, the LED of blue three-color, and then the output brightness of minitype projection machine is 90 lumens.
When the power of power supply adaptor is 90 watt-hours, the display brightness of the light emitting diode that brightness settings unit 102 is set is higher, and brightness adjustment unit 103 (for example: 100 lumens) and output is adjusted into high lumen with the brightness of minitype projection machine.When the power of power supply adaptor is 65 watt-hours, the display brightness of the light emitting diode that brightness settings unit 102 is set is lower, and brightness adjustment unit 103 (for example: 75 lumens) and output is adjusted into low lumen with the brightness of minitype projection machine.
In the embodiment of the invention two, input power supply recognition unit 101 can comprise:
Detecting unit 202 is used for the output pin of power supply adaptor is detected;
Input power supply recognin unit 203, be used for when output pin that detecting unit 202 detects power supply adaptor is low level, the output power that identifies power supply adaptor is first numerical value (for example: 65 watts), when the output pin that detects power supply adaptor when detecting unit 202 was unsettled or high level, the power that identifies power supply adaptor was second value (for example: 90 watts).
Register value setup unit 204, the output power that is used for identifying according to described recognition unit 101 is set the numerical value of the register of light emitting diode;
Brightness settings subelement 205 is used for the numerical value according to the setting of register value setup unit, sets the brightness of minitype projection machine.
Perhaps, brightness settings unit 102 can comprise:
Change-over switch unit (figure does not show), be used for selecting first group of register or second group of register according to the output power that described input power supply recognition unit identifies, the numerical value of described first group of register is used to make the display brightness of light emitting diode to be in first state, and the numerical value of described second group of register is used to make the display brightness of described light emitting diode to be in second state;
Onunit (figure does not show) is used for described first group of register or the described second group of described light emitting diode of register conducting selected according to described change-over switch unit.
The first brightness adjustment unit 206, the brightness that is used for the light emitting diode set according to brightness settings unit 102 is adjusted into high lumen with the brightness of minitype projection machine output;
The second brightness adjustment unit 207, the brightness that is used for the light emitting diode set according to brightness settings unit 102 is adjusted into low lumen with the brightness of minitype projection machine output.
The embodiment of the invention three also provides a kind of portable set, and described portable set comprises minitype projection machine, and described portable set comprises:
Import the power supply recognition unit, be used to discern the output power of power supply adaptor;
The brightness settings unit, the output power that is used for the described power supply adaptor that identifies according to described input power supply recognition unit is set the brightness of minitype projection machine;
The brightness adjustment unit is used for the brightness of described minitype projection machine output is adjusted into the brightness that described brightness settings unit is set.
As can be seen, in embodiments of the present invention, minitype projection machine can be discerned the output power of power supply adaptor, sets brightness according to the output power of power supply adaptor, and brightness is adjusted into the brightness and the output of setting.Thereby no matter how many output powers of the power supply adaptor that uses of user is, minitype projection machine can be adjusted brightness according to the power of power supply adaptor automatically, not only can avoid the performance of minitype projection machine to be affected owing to power supply adaptor output power deficiency, can also avoid power supply adaptor because safety problem appears in overwork, simultaneously, when if the output power of the power supply adaptor that the user uses and the brightness of minitype projection machine do not match, the user need not specially to have saved use cost for minitype projection machine is equipped with special power supply adaptor.
Please refer to Fig. 3, a kind of minitype projection machine that provides for the embodiment of the invention four is adjusted the method flow diagram of brightness, can may further comprise the steps:
Step 301: the output power of the power supply adaptor of identification input;
Step 302: the output power according to described power supply adaptor is set brightness;
Step 303: the brightness of output is adjusted into the brightness of described setting.
As can be seen, in embodiments of the present invention, minitype projection machine can be discerned the output power of power supply adaptor, sets brightness according to the output power of power supply adaptor, and brightness is adjusted into the brightness and the output of setting.Thereby no matter how many output powers of the power supply adaptor that uses of user is, minitype projection machine can be adjusted brightness according to the output power of power supply adaptor automatically, not only can avoid the performance of minitype projection machine to be affected owing to power supply adaptor output power deficiency, can also avoid power supply adaptor because safety problem appears in overwork, simultaneously, when if the output power of the power supply adaptor that the user uses and the brightness of minitype projection machine do not match, the user need not specially to have saved use cost for minitype projection machine is equipped with special power supply adaptor.
Please refer to Fig. 4, a kind of minitype projection machine that provides for the embodiment of the invention five is adjusted the method flow diagram of brightness, can may further comprise the steps:
Step 401: minitype projection machine detects the output pin of the power supply adaptor of input;
Step 402: when the output pin that detects power supply adaptor is low level, the power that minitype projection machine identifies power supply adaptor is first numerical value (for example: 65 watts), when the output pin that detects power supply adaptor was unsettled or high level, the power that minitype projection machine identifies power supply adaptor was second value (for example: 90 watts);
Step 403: minitype projection machine is set the numerical value of the register of light emitting diode;
Step 404: minitype projection machine is according to the brightness of the setting value light emitting diode of setting;
Step 405: according to the brightness of light emitting diode, minitype projection machine is adjusted into high lumen and output with the brightness of output, and perhaps, minitype projection machine is adjusted into low lumen and output with the brightness of output.
It is pointed out that minitype projection machine can also set the brightness of light emitting diode in the following manner:
1, selects first group of register or second group of register according to the output power that identifies, the numerical value of first group of register is used to make the display brightness of light emitting diode to be in first state, and the numerical value of second group of register is used to make the display brightness of light emitting diode to be in second state;
2, according to first group of register or second group of register conducting light emitting diode of selecting.
At last, also need to prove, in this article, relational terms such as first and second grades only is used for an entity or operation are made a distinction with another entity or operation, and not necessarily requires or hint and have the relation of any this reality or in proper order between these entities or the operation.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thereby make and comprise that process, method, article or the equipment of a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or also be included as this process, method, article or equipment intrinsic key element.Do not having under the situation of more restrictions, the key element that limits by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential hardware platform, can certainly all implement, but the former is better embodiment under a lot of situation by hardware.Based on such understanding, all or part of can the embodying that technical scheme of the present invention contributes to background technology with the form of software product, this computer software product can be stored in the storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be a personal computer, server, the perhaps network equipment etc.) carry out the described method of some part of each embodiment of the present invention or embodiment.
More than the present invention is described in detail, used specific case herein principle of the present invention and embodiment set forth, the explanation of above embodiment just is used for help understanding method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (11)
1. a minitype projection machine is characterized in that, described minitype projection machine comprises:
Input power supply recognition unit is used to discern the output power of the power supply adaptor of input;
The brightness settings unit, the output power that is used for the described power supply adaptor that identifies according to described input power supply recognition unit is set the brightness of minitype projection machine;
The brightness adjustment unit is used for the brightness of described minitype projection machine output is adjusted into the brightness that described brightness settings unit is set.
2. minitype projection machine according to claim 1 is characterized in that, described input power supply recognition unit comprises:
Detecting unit is used for the output pin of described power supply adaptor is detected;
Input power supply recognin unit, be used for when output pin that described detecting unit detects described power supply adaptor is low level, the power that identifies described power supply adaptor is first numerical value, when the output pin that detects described power supply adaptor when described detecting unit was unsettled or high level, the power that identifies described power supply adaptor was second value.
3. minitype projection machine according to claim 1 is characterized in that, described brightness settings unit comprises:
The register value setup unit, the output power that is used for identifying according to described input power supply recognition unit is set the numerical value of the register of light emitting diode;
The brightness settings subelement is used for the numerical value according to described register value setup unit setting, sets the brightness of described minitype projection machine.
4. minitype projection machine according to claim 1 is characterized in that, described brightness settings unit comprises:
The change-over switch unit, be used for selecting first group of register or second group of register according to the output power that described input power supply recognition unit identifies, the numerical value of described first group of register is used to make the display brightness of light emitting diode to be in first state, and the numerical value of described second group of register is used to make the display brightness of described light emitting diode to be in second state;
Onunit is used for described first group of register or the described second group of described light emitting diode of register conducting selected according to described change-over switch unit.
5. according to claim 3 or 4 described minitype projection machines, it is characterized in that described brightness adjustment unit comprises:
The first brightness adjustment unit, the brightness that is used for the light emitting diode set according to described brightness settings unit is adjusted into high lumen with the brightness of described minitype projection machine output;
The second brightness adjustment unit, the brightness that is used for the light emitting diode set according to described brightness settings unit is adjusted into low lumen with the brightness of described minitype projection machine output.
6. portable set, described portable set comprises minitype projection machine, it is characterized in that, described portable set comprises:
Input power supply recognition unit is used to discern the output power of the power supply adaptor of input;
The brightness settings unit, the output power that is used for the described power supply adaptor that identifies according to described input power supply recognition unit is set the brightness of minitype projection machine;
The brightness adjustment unit is used for the brightness of described minitype projection machine output is adjusted into the brightness that described brightness settings unit is set.
7. a minitype projection machine is adjusted the method for brightness, it is characterized in that described method comprises:
The output power of the power supply adaptor of identification input;
Output power according to described power supply adaptor is set brightness;
The brightness of output is adjusted into the brightness of described setting.
8. method according to claim 7 is characterized in that, the power of the power supply adaptor of described identification input comprises:
Output pin to described power supply adaptor detects;
When the output pin that detects described power supply adaptor is low level, the power that identifies described power supply adaptor is first numerical value, when the output pin that detects described power supply adaptor is unsettled or high level, identify the power second value of described power supply adaptor.
9. method according to claim 7 is characterized in that, described output power according to described power supply adaptor is set brightness and comprised:
Set the numerical value of the register of light emitting diode;
According to described numerical value, set the brightness of described light emitting diode.
10. method according to claim 7 is characterized in that, described output power according to described power supply adaptor is set brightness and comprised:
Select first group of register or second group of register according to the described output power that identifies, the numerical value of described first group of register is used to make the display brightness of light emitting diode to be in first state, and the numerical value of described second group of register is used to make the display brightness of described light emitting diode to be in second state;
According to described first group of register or the described second group of described light emitting diode of register conducting selected.
11., it is characterized in that the brightness that described brightness with output is adjusted into described setting comprises according to claim 9 or 10 described methods:
According to the brightness of described light emitting diode, the brightness of exporting is adjusted into high lumen, perhaps, the brightness of exporting is adjusted into low lumen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100920879A CN102023462B (en) | 2009-09-14 | 2009-09-14 | Micro-projector and brightness adjustment method thereof as well as portable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100920879A CN102023462B (en) | 2009-09-14 | 2009-09-14 | Micro-projector and brightness adjustment method thereof as well as portable device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102023462A true CN102023462A (en) | 2011-04-20 |
| CN102023462B CN102023462B (en) | 2012-06-06 |
Family
ID=43864935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100920879A Active CN102023462B (en) | 2009-09-14 | 2009-09-14 | Micro-projector and brightness adjustment method thereof as well as portable device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102023462B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393791A (en) * | 2011-07-06 | 2012-03-28 | 杭州华三通信技术有限公司 | Device and method for realizing power supply control on hardware modules |
| CN103034027A (en) * | 2011-09-30 | 2013-04-10 | 中强光电股份有限公司 | Projector and light source thereof control method |
| CN103458553A (en) * | 2012-05-30 | 2013-12-18 | 深圳市实益达科技股份有限公司 | Micro-projector with automatic luminance output adjustment and luminance adjusting method thereof |
| CN104185001A (en) * | 2014-09-09 | 2014-12-03 | 联想(北京)有限公司 | Control method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1115399A (en) * | 1994-03-30 | 1996-01-24 | Lg电子株式会社 | Lamp opreation device for a projection type LCD projector |
| DE10136474A1 (en) * | 2001-07-27 | 2003-02-13 | Philips Corp Intellectual Pty | Electronic circuit for operating an HID lamp and image projector |
| CN100489651C (en) * | 2005-12-29 | 2009-05-20 | 联想(北京)有限公司 | Luminance self-adjusting projector and method thereof |
-
2009
- 2009-09-14 CN CN2009100920879A patent/CN102023462B/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393791A (en) * | 2011-07-06 | 2012-03-28 | 杭州华三通信技术有限公司 | Device and method for realizing power supply control on hardware modules |
| CN102393791B (en) * | 2011-07-06 | 2015-03-11 | 杭州华三通信技术有限公司 | Device and method for realizing power supply control on hardware modules |
| CN103034027A (en) * | 2011-09-30 | 2013-04-10 | 中强光电股份有限公司 | Projector and light source thereof control method |
| US9268205B2 (en) | 2011-09-30 | 2016-02-23 | Coretronic Corporation | Projector and method of adjusting luminance based on detected voltage |
| CN103458553A (en) * | 2012-05-30 | 2013-12-18 | 深圳市实益达科技股份有限公司 | Micro-projector with automatic luminance output adjustment and luminance adjusting method thereof |
| CN104185001A (en) * | 2014-09-09 | 2014-12-03 | 联想(北京)有限公司 | Control method and device |
| US9691352B2 (en) | 2014-09-09 | 2017-06-27 | Lenovo (Beijing) Co., Ltd. | Control method and device thereof |
| CN104185001B (en) * | 2014-09-09 | 2018-08-31 | 联想(北京)有限公司 | A kind of control method and device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102023462B (en) | 2012-06-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10354570B2 (en) | High-power power supply for use with display devices and associated display device | |
| Li et al. | Novel self-configurable current-mirror techniques for reducing current imbalance in parallel light-emitting diode (LED) strings | |
| CN102023462B (en) | Micro-projector and brightness adjustment method thereof as well as portable device | |
| US20200158364A1 (en) | Air Conditioner Current Loop Communication Circuit And Air Conditioner | |
| CN103037585B (en) | Distributed light-emitting diode (LED) lamp and drive power supply plug-in plug-out protective circuit thereof | |
| CN103514848A (en) | Light emitting diode driving apparatus and driving method of light emitting diode | |
| CN110798935A (en) | LED lamp string control method, device and system and terminal equipment | |
| CN103293838A (en) | Minitype projecting device and method for prolonging play time of minitype projecting device and enabling image quality to be optimal | |
| CN101751320A (en) | Computer hardware device state indicating circuit | |
| KR20120020481A (en) | Luminescence driving apparatus, display apparatus and driving method thereof | |
| CN108575004B (en) | Dimming drive circuit | |
| US20140292228A1 (en) | Driving apparatus for led chips of different specifications | |
| CN106332351A (en) | Wireless LED illumination control system, control panel, and wireless pairing method | |
| CN207399565U (en) | A kind of control circuit of light emitting diode | |
| US10285239B2 (en) | Protection circuit for short circuit of LED power supply | |
| CN207339920U (en) | Library automation management system | |
| CN206323545U (en) | A kind of display device with Baffle Box of Bluetooth | |
| CN101568210B (en) | Television indicator light circuit capable of reducing the standby power consumption | |
| CN212367594U (en) | LED drive protection circuit and lamp | |
| CN100539793C (en) | The drive unit of light-emitting diode | |
| CN203039967U (en) | Split LED lamp and split LED lamp driving power supply insertion and extraction protection circuit | |
| CN202550877U (en) | High-efficiency primary side feedback AC/DC (alternating current/direct current) power supply chip | |
| CN102858054B (en) | Solid luminous device, solid luminescent light source, lighting device and control method thereof | |
| US20130234676A1 (en) | Charge indicator circuit | |
| CN102223180B (en) | Optical module with low power consumption and realizing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |