CN110087360A - The adjustable LED of brightness and brightness adjusting method - Google Patents
The adjustable LED of brightness and brightness adjusting method Download PDFInfo
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- CN110087360A CN110087360A CN201910286685.3A CN201910286685A CN110087360A CN 110087360 A CN110087360 A CN 110087360A CN 201910286685 A CN201910286685 A CN 201910286685A CN 110087360 A CN110087360 A CN 110087360A
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/10—Controlling the intensity of the light
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/50—Circuit arrangements for operating light-emitting diodes [LED] responsive to malfunctions or undesirable behaviour of LEDs; responsive to LED life; Protective circuits
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
This application discloses a kind of adjustable LED of brightness and brightness adjusting methods.The adjustable LED of the brightness includes: temperature sensor, controller, LED driver, LED lamp panel, the LED lamp panel is connect with the LED driver, the controller is connect with the LED driver, the temperature sensor is connect with the controller, the temperature value that the temperature sensor will test is passed to the controller, the LED luminance of the LED lamp panel is adjusted by the LED driver, the controller, for according to preset temperature value and LED luminance value relationship, obtain corresponding LED drive current value, the LED driver, for receiving the LED drive current value, and it controls the LED lamp panel and adjusts brightness.Present application addresses the bad technical problems of LED performance.The application can be by adjusting the driving current of LED according to ambient temperature and lamp plate temperature, to reach the mode of maximum luminous efficiency and the service life of LED.In addition, the application is suitable for great power LED and vehicle-mounted HUD scene.
Description
Technical field
This application involves electronic technology fields, in particular to a kind of adjustable LED of brightness and brightness regulation side
Method.
Background technique
High-powered LED lamp is mainly used in the associated scenarios such as illumination, HUD.
Inventors have found that causing its operating temperature higher due to high-powered LED lamp because calorific value is big, to influence its property
Energy.
For the bad problem of LED performance in the related technology, currently no effective solution has been proposed.
Summary of the invention
The main purpose of the application is to provide a kind of adjustable LED of brightness and brightness adjusting method, to solve LED
The bad problem of energy.
To achieve the goals above, according to the one aspect of the application, a kind of adjustable LED of brightness is provided.It can root
LED drive current is adjusted according to the operating temperature of LED.
It include: temperature sensor, controller, LED driver, LED lamp panel, institute according to the adjustable LED of the brightness of the application
It states LED lamp panel to connect with the LED driver, the controller is connect with the LED driver, the temperature sensor and institute
Controller connection is stated, the temperature value that the temperature sensor will test is passed to the controller, the LED luminance of the LED lamp panel
It is adjusted by the LED driver, the controller, for obtaining corresponding according to preset temperature value and LED luminance value relationship
LED drive current value, the LED driver, for receiving the LED drive current value, and it is bright to control the LED lamp panel adjusting
Degree.
Further, the temperature sensor, for detecting the temperature of LED lamp panel.
Further, the temperature sensor, for detecting the temperature and environment temperature of LED lamp panel simultaneously.
Further, the LED driver is used to adjust the LED drive current of input LED lamp panel.
Further, the controller adjusts the LED driver according to prefixed time interval.
Further, the controller is configured as, storage measured in advance LED luminance value and temperature value relation table, every
It include: the corresponding current that LED lamp panel brightness value can be made to will not change under lamp plate temperature and LED lamp panel thermal balance in a relation table
Setting.
Further, the controller is configured as, storage measured in advance LED luminance value and temperature value relation table, every
It include: that LED lamp panel brightness value can be made to will not change under environment or room temperature and LED lamp panel thermal balance in a relation table
Corresponding current setting.
To achieve the goals above, according to the another aspect of the application, a kind of brightness adjusting method is provided, is used for backlight
LED is shown.
Brightness adjusting method according to the application includes: acquisition temperature value；According to the temperature value, preset temperature value with
Corresponding LED drive current value is obtained in LED luminance value relationship, by adjusting the LED drive current value, controls the LED
Lamp plate adjusts brightness.
Further, by adjusting the LED drive current value, controlling the LED lamp panel and adjusting brightness includes: acquisition the
One temperature value, wherein first temperature value is used to be used as house temperature；According to corresponding first electricity of first temperature value configuration
Flow valuve, wherein first current value is used for as pre-set current value corresponding with house temperature；Pass through the first current value tune
The whole LED drive current value controls the LED lamp panel and adjusts brightness.
Further, by adjusting the LED drive current value, controlling the LED lamp panel and adjusting brightness includes: acquisition the
Two temperature values, wherein first temperature value is used to be used as LED lamp panel temperature value；It is configured according to the second temperature value corresponding
Second current value, wherein second current value is used for as pre-set current value corresponding with LED lamp panel temperature value；By described
Second current value adjusts the LED drive current value, controls the LED lamp panel and adjusts brightness.
In the embodiment of the present application, using temperature sensor, controller, LED driver, LED lamp panel combination, lead to
The controller is crossed, for corresponding LED drive current value being obtained, being reached according to preset temperature value and LED luminance value relationship
The LED driver for receiving the LED drive current value, and controls the purpose that the LED lamp panel adjusts brightness, thus
It realizes according to ambient temperature and lamp plate temperature and adjusts the technical effect of the driving current of LED, and then solve LED
The bad technical problem of performance.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present application, so that the application's is other
Feature, objects and advantages become more apparent upon.The illustrative examples attached drawing and its explanation of the application is for explaining the application, not
Constitute the improper restriction to the application.In the accompanying drawings:
Fig. 1 is the adjustable LED structure schematic diagram of brightness according to one embodiment of the application；
Fig. 2 is the preset temperature value and LED luminance value relation schematic diagram according to the embodiment of the present application；
Fig. 3 is the adjustable LED structure schematic diagram of brightness according to another embodiment of the application；
Fig. 4 is the brightness adjusting method flow diagram according to the embodiment of the present application；
Fig. 5 is the brightness adjusting method flow diagram according to the embodiment of the present application；
Fig. 6 is the brightness adjusting method flow diagram according to the embodiment of the present application.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only
The embodiment of the application a part, instead of all the embodiments.Based on the embodiment in the application, ordinary skill people
Member's every other embodiment obtained without making creative work, all should belong to the model of the application protection
It encloses.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to embodiments herein described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
In this application, term " on ", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outside",
" in ", "vertical", "horizontal", " transverse direction ", the orientation or positional relationship of the instructions such as " longitudinal direction " be orientation based on the figure or
Positional relationship.These terms are not intended to limit indicated dress primarily to better describe the application and embodiment
Set, element or component must have particular orientation, or constructed and operated with particular orientation.
Also, above-mentioned part term is other than it can be used to indicate that orientation or positional relationship, it is also possible to for indicating it
His meaning, such as term " on " also are likely used for indicating certain relations of dependence or connection relationship in some cases.For ability
For the those of ordinary skill of domain, the concrete meaning of these terms in this application can be understood as the case may be.
In addition, term " installation ", " setting ", " being equipped with ", " connection ", " connected ", " socket " shall be understood in a broad sense.For example,
It may be a fixed connection, be detachably connected or monolithic construction；It can be mechanical connection, or electrical connection；It can be direct phase
It even, or indirectly connected through an intermediary, or is two connections internal between device, element or component.
For those of ordinary skills, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
As depicted in figs. 1 and 2, the adjustable LED of brightness in the embodiment of the present application, comprising: temperature sensor 1, controller
13, LED driver 14, LED lamp panel 15, the LED lamp panel 15 are connect with the LED driver 14, the controller 13 and institute
The connection of LED driver 14 is stated, the temperature sensor 1 is connect with the controller 13, the temperature that the temperature sensor 1 will test
Angle value is passed to the controller 13, and the LED luminance of the LED lamp panel 15 is adjusted by the LED driver 14, the controller
13, for according to preset temperature value and LED luminance value relationship, obtaining corresponding LED drive current value, the LED driver 14,
For receiving the LED drive current value, and controls the LED lamp panel and adjust brightness.The temperature sensor 1 is for detecting temperature
Angle value, and the temperature value that will test is passed to the controller 13.The LED lamp panel 15 issues the back of different brightness by LED
Light illumination.The LED driver 14 is connect with the LED lamp panel 15, for controlling the brightness of the LED lamp panel.The LED drives
The brightness of the LED lamp panel changes correspondingly when constant current changes really in dynamic device.Preset temperature has been prestored in the controller 13
The corresponding relationship of value and LED luminance value, passes through the available input institute of corresponding relationship of the preset temperature value and LED luminance value
State the driving current in LED driver.And then it can be by adjusting the drive of LED according to ambient temperature and lamp plate temperature
Streaming current, to reach the mode of maximum luminous efficiency and the service life of LED.
Specifically, the controller 13 receives the temperature information that the temperature sensor 1 measures, and pre- by its
The LED luminance and thermometer first measured extracts its LED drive current value that should be arranged, and this current value write-in LED is driven
In dynamic device, to achieve the purpose that back light controls.
The adjustable LED of brightness in the application can be used for the scene of great power LED or HUD backlight display.
It can be seen from the above description that the application realizes following technical effect:
In the embodiment of the present application, using temperature sensor, controller, LED driver, LED lamp panel combination, lead to
The controller is crossed, for corresponding LED drive current value being obtained, being reached according to preset temperature value and LED luminance value relationship
The LED driver for receiving the LED drive current value, and controls the purpose that the LED lamp panel adjusts brightness, thus
It realizes according to ambient temperature and lamp plate temperature and adjusts the technical effect of the driving current of LED, and then solve LED
The bad technical problem of performance.
According to the embodiment of the present application, as preferred in the present embodiment, as shown in figure 3, the temperature sensor 1, is used for
Detect the temperature of LED lamp panel.The temperature sensor 1 can also select lamp plate temperature sensor 12, the lamp plate temperature sensing
Device 12 can detecte environment temperature or room temperature, and the temperature value that will test is transmitted to the controller 13.In this Shen
In embodiment please, the temperature sensor 1 can only pass through the lamp plate temperature for detecting lamp plate temperature without detecting room temperature
Spend the temperature that sensor 12 detects lamp plate.
According to the embodiment of the present application, as preferred in the present embodiment, as shown in figure 3, the temperature sensor, for same
When detect LED lamp panel temperature and environment temperature.The temperature sensor 1 can also select interior sensor 11 and lamp plate temperature
Sensor 12.And the indoor temperature value and lamp plate temperature value that will test are transmitted to the controller 13.In the implementation of the application
In example, the temperature sensor 1 is used for while detecting the temperature and environment temperature of LED lamp panel, passes through the interior sensor 11
The controller 13 is inputted simultaneously with the temperature of the lamp plate temperature sensor 12 detection lamp plate.
According to the embodiment of the present application, as preferred in the present embodiment, as shown in figure 3, the LED driver 14 is for adjusting
The LED drive current of whole input LED lamp panel 15.Be easy to cause LED to damage to solve temperature raising, shorten LED service life,
Leading to the luminous efficiency of LED reduces.By adjusting the driving current of LED by relevant configuration, to reach most
The service life of big luminous efficiency and LED.
It should be noted that as long as the LED that can satisfy the adjustment input LED lamp panel in embodiments herein drives
The requirement of streaming current, in this application and without specifically limiting.
According to the embodiment of the present application, as preferred in the present embodiment, the controller is adjusted according to prefixed time interval
The LED driver.Specifically, the controller 13 is configurable to the adjustment time interval of the LED driver 14
Millisecond or a few minutes, it is also possible to a few houres.
It should be noted that the configuration condition of driving current, which needs to meet, can make LED luminance value not under LED heat balance
It is carried out under the premise of changing.
According to the embodiment of the present application, as preferred in the present embodiment, the controller is configured as, and stores measured in advance
LED luminance value and temperature value relation table include: that can make LED under lamp plate temperature and LED lamp panel thermal balance in each relation table
The corresponding current setting that lamp plate brightness value will not change.The LED luminance of measured in advance and thermometer as needed for single or
Multiple, the storage measured in advance LED luminance value includes lamp plate temperature value and corresponding driving current value with temperature value relation table.
It can be one-to-many or one-one relationship.
Preferably, the temperature sensor 1, for detecting the temperature of LED lamp panel.The temperature sensor 1 can also select
With lamp plate temperature sensor 12, the lamp plate temperature sensor 12 can detecte environment temperature or room temperature, and will test
To temperature value be transmitted to the controller 13.In embodiments herein, the temperature sensor 1 is for detecting lamp plate temperature
Degree can only detect the temperature of lamp plate without detecting room temperature by the lamp plate temperature sensor 12.
Preferably, specifically, the LED luminance of measured in advance and thermometer are as needed for single or multiple, Mei Gebiao
In include at least: room temperature or environment temperature, lamp plate temperature, and LED heat balance under LED luminance value can be made not become
The electric current of change is arranged, and luminous efficiency and service life for making LED reach maximum.
According to the embodiment of the present application, as preferred in the present embodiment, the controller is configured as, and stores measured in advance
LED luminance value and temperature value relation table include: under environment or room temperature and LED lamp panel thermal balance in each relation table
The corresponding current setting that LED lamp panel brightness value can be made to will not change.The LED luminance of measured in advance and thermometer as needed for
Single perhaps multiple storage measured in advance LED luminance values and temperature value relation table include environment or indoor temperature value
With corresponding driving current value.
Preferably, the temperature sensor, for detecting the temperature and environment temperature of LED lamp panel simultaneously.The temperature passes
Sensor 1 can also select interior sensor 11 and lamp plate temperature sensor 12.And the indoor temperature value and lamp plate temperature that will test
Angle value is transmitted to the controller 13.In embodiments herein, the temperature sensor 1 is used for while detecting LED lamp panel
Temperature and environment temperature, the temperature of lamp plate is detected simultaneously by the interior sensor 11 and the lamp plate temperature sensor 12
Input the controller 13.
Preferably, by adjusting the driving current of LED by relevant configuration, thus reach maximum luminous efficiency with
And the service life of LED.
Specifically, the LED luminance of measured in advance and thermometer are as needed for single or multiple table as shown in Figure 2
(table) 1-table (table) 3 is included at least in each table: room temperature or environment temperature, lamp plate temperature, and is balanced in LED heat
The electric current setting that LED luminance value can be made to will not change down, luminous efficiency and service life for making LED reach maximum.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not
The sequence being same as herein executes shown or described step.
According to the embodiment of the present application, additionally provide it is a kind of for implementing the brightness adjusting method of the adjustable LED of above-mentioned brightness,
It is shown for backlight LED as shown in figure 4, the brightness adjusting method includes:
Step S102 obtains temperature value；
By the temperature sensor 1, for detecting the temperature of LED lamp panel.The temperature sensor 1 can also select lamp
Plate temperature sensor 12, the lamp plate temperature sensor 12 can detecte environment temperature or room temperature, and will test
Temperature value is transmitted to the controller 13.
Alternatively, temperature sensor is stated, for detecting the temperature and environment temperature of LED lamp panel simultaneously.The temperature sensor 1
Interior sensor 11 and lamp plate temperature sensor 12 can also be selected.
Step S104 obtains corresponding LED in preset temperature value and LED luminance value relationship and drives according to the temperature value
Streaming current value；
Measured in advance LED luminance value and temperature value relation table are stored, includes: lamp plate temperature and LED in each relation table
The corresponding current setting that LED lamp panel brightness value can be made to will not change under lamp plate thermal balance.
Step S106 controls the LED lamp panel and adjusts brightness by adjusting the LED drive current value.
By adjusting the driving current of LED by relevant configuration, to reach maximum luminous efficiency and LED
Service life.
According to the embodiment of the present application, as preferred in the present embodiment, as shown in figure 5, driving electricity by adjusting the LED
Flow valuve, controlling the LED lamp panel adjusting brightness includes:
Step S202 obtains the first temperature value, wherein first temperature value is used to be used as house temperature and lamp plate temperature value；
Step S204 configures corresponding first current value according to first temperature value, wherein first current value is used
In as pre-set current value corresponding with house temperature and lamp plate temperature value；
Step S206 adjusts the LED drive current value by first current value, controls the LED lamp panel and adjusts
Brightness.
Specifically, the temperature sensor 1 can also select interior sensor 11 and lamp plate temperature sensor 12.And it will inspection
The indoor temperature value and lamp plate temperature value measured is transmitted to the controller 13.In embodiments herein, the temperature is passed
Sensor 1 is used for while detecting the temperature and environment temperature of LED lamp panel, is passed by the interior sensor 11 and the lamp plate temperature
The temperature that sensor 12 detects lamp plate inputs the controller 13 simultaneously.
Meanwhile it further includes house temperature, lamp plate temperature value and LED heat that first temperature value, which configures corresponding first current value,
The lower current value that LED luminance value can be made to will not change and be arranged of balance.In Fig. 2, temperature a1, temperature b1, shown in electric current c1.
According to the embodiment of the present application, as preferred in the present embodiment, as shown in fig. 6, driving electricity by adjusting the LED
Flow valuve, controlling the LED lamp panel adjusting brightness includes:
Step S302 obtains second temperature value, wherein first temperature value is used to be used as LED lamp panel temperature value；
Step S304 configures corresponding second current value according to the second temperature value, wherein second current value is used
In as pre-set current value corresponding with LED lamp panel temperature value；
Step S306 adjusts the LED drive current value by second current value, controls the LED lamp panel and adjusts
Brightness.
Specifically, the temperature sensor 1, for detecting the temperature of LED lamp panel.The temperature sensor 1 can also select
With lamp plate temperature sensor 12, the lamp plate temperature sensor 12 can detecte environment temperature or room temperature, and will test
To temperature value be transmitted to the controller 13.In embodiments herein, the temperature sensor 1 is for detecting lamp plate temperature
Degree can only detect the temperature of lamp plate without detecting room temperature by the lamp plate temperature sensor 12.
Meanwhile the second temperature value configures corresponding second current value and only includes lamp plate temperature and the lower energy of LED heat balance
The current value that enough will not change LED luminance value and be arranged.In Fig. 2, temperature a2, shown in electric current c1.
Obviously, those skilled in the art should be understood that each module of above-mentioned the application or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Be performed by computing device in the storage device, perhaps they are fabricated to each integrated circuit modules or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the application be not limited to it is any specific
Hardware and software combines.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of adjustable LED of brightness characterized by comprising temperature sensor, controller, LED driver, LED lamp panel,
The LED lamp panel is connect with the LED driver, and the controller is connect with the LED driver, the temperature sensor with
The controller connection, the temperature value that the temperature sensor will test are passed to the controller, and the LED of the LED lamp panel is bright
Degree is adjusted by the LED driver,
The controller, for obtaining corresponding LED drive current value according to preset temperature value and LED luminance value relationship,
The LED driver for receiving the LED drive current value, and controls the LED lamp panel and adjusts brightness.
2. the adjustable LED of brightness according to claim 1, which is characterized in that the temperature sensor, for detecting LED
The temperature of lamp plate.
3. the adjustable LED of brightness according to claim 1, which is characterized in that the temperature sensor, for detecting simultaneously
The temperature and environment temperature of LED lamp panel.
4. the adjustable LED of brightness according to claim 1, which is characterized in that the LED driver is for adjusting input
The LED drive current of LED lamp panel.
5. the adjustable LED of brightness according to claim 1, which is characterized in that the controller is according to prefixed time interval
Adjust the LED driver.
6. the adjustable LED of brightness according to claim 1, which is characterized in that the controller is configured as, and storage is preparatory
LED luminance value and temperature value relation table are measured, includes: in each relation table
The corresponding current that LED lamp panel brightness value can be made to will not change at lamp plate temperature and LED lamp panel thermal balance is arranged.
7. the adjustable LED of brightness according to claim 1, which is characterized in that the controller is configured as, and storage is preparatory
LED luminance value and temperature value relation table are measured, includes: in each relation table
The corresponding current that LED lamp panel brightness value can be made to will not change under environment or room temperature and LED lamp panel thermal balance is set
It sets.
8. a kind of brightness adjusting method, which is characterized in that shown for backlight LED, which comprises
Obtain temperature value；
According to the temperature value, corresponding LED drive current value is obtained in preset temperature value and LED luminance value relationship；
By adjusting the LED drive current value, controls the LED lamp panel and adjust brightness.
9. brightness adjusting method according to claim 8, which is characterized in that by adjusting the LED drive current value, control
Making the LED lamp panel adjusting brightness includes:
The first temperature value is obtained, wherein first temperature value is used to be used as house temperature；
Configure corresponding first current value according to first temperature value, wherein first current value be used for as with house temperature
Corresponding pre-set current value；
The LED drive current value is adjusted by first current value, the LED lamp panel is controlled and adjusts brightness.
10. brightness adjusting method according to claim 8, which is characterized in that by adjusting the LED drive current value,
Controlling the LED lamp panel adjusting brightness includes:
Second temperature value is obtained, wherein first temperature value is used to be used as LED lamp panel temperature value；
Configure corresponding second current value according to the second temperature value, wherein second current value be used for as with LED light
The corresponding pre-set current value of plate temperature value；
The LED drive current value is adjusted by second current value, the LED lamp panel is controlled and adjusts brightness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910286685.3A CN110087360A (en) | 2019-04-10 | 2019-04-10 | The adjustable LED of brightness and brightness adjusting method |
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| CN201910286685.3A CN110087360A (en) | 2019-04-10 | 2019-04-10 | The adjustable LED of brightness and brightness adjusting method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645552A (en) * | 2019-10-16 | 2020-01-03 | 广州市珠江灯光科技有限公司 | Lamp control method and lamp |
| CN111885767A (en) * | 2020-07-14 | 2020-11-03 | 奇瑞汽车股份有限公司 | Automobile headlamp temperature control method |
| CN112233624A (en) * | 2020-10-16 | 2021-01-15 | 上海华东汽车信息技术有限公司 | Backlight processing method, medium and device for instrument panel and vehicle |
| CN113554983A (en) * | 2021-07-19 | 2021-10-26 | 京东方科技集团股份有限公司 | Control device and control method of display panel, display device and head-up display |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202019482U (en) * | 2011-03-16 | 2011-10-26 | 深圳茂硕电源科技股份有限公司 | A One-way RS-485 Controlled LED Driving Power System |
| CN102484917A (en) * | 2009-08-25 | 2012-05-30 | 皇家飞利浦电子股份有限公司 | Led-based lighting fixtures and related methods for thermal management |
| CN103052232A (en) * | 2012-12-24 | 2013-04-17 | 常州星宇车灯股份有限公司 | Automatic adjusting method for LED (Light Emitting Diode) luminous flux |
| CN103927989A (en) * | 2014-04-21 | 2014-07-16 | 中国电子科技集团公司第五十五研究所 | Passive organic light emitting diode (OLED) display device with wide-temperature brightness compensation function and brightness compensation method |
| CN108495418A (en) * | 2018-04-25 | 2018-09-04 | 广东工业大学 | A kind of thermal management algorithm and device of LED |
-
2019
- 2019-04-10 CN CN201910286685.3A patent/CN110087360A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102484917A (en) * | 2009-08-25 | 2012-05-30 | 皇家飞利浦电子股份有限公司 | Led-based lighting fixtures and related methods for thermal management |
| CN202019482U (en) * | 2011-03-16 | 2011-10-26 | 深圳茂硕电源科技股份有限公司 | A One-way RS-485 Controlled LED Driving Power System |
| CN103052232A (en) * | 2012-12-24 | 2013-04-17 | 常州星宇车灯股份有限公司 | Automatic adjusting method for LED (Light Emitting Diode) luminous flux |
| CN103927989A (en) * | 2014-04-21 | 2014-07-16 | 中国电子科技集团公司第五十五研究所 | Passive organic light emitting diode (OLED) display device with wide-temperature brightness compensation function and brightness compensation method |
| CN108495418A (en) * | 2018-04-25 | 2018-09-04 | 广东工业大学 | A kind of thermal management algorithm and device of LED |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110645552A (en) * | 2019-10-16 | 2020-01-03 | 广州市珠江灯光科技有限公司 | Lamp control method and lamp |
| CN111885767A (en) * | 2020-07-14 | 2020-11-03 | 奇瑞汽车股份有限公司 | Automobile headlamp temperature control method |
| CN112233624A (en) * | 2020-10-16 | 2021-01-15 | 上海华东汽车信息技术有限公司 | Backlight processing method, medium and device for instrument panel and vehicle |
| CN113554983A (en) * | 2021-07-19 | 2021-10-26 | 京东方科技集团股份有限公司 | Control device and control method of display panel, display device and head-up display |
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