CN108766371A - A kind of the intelligent backlight control system and its method of touch panel - Google Patents
A kind of the intelligent backlight control system and its method of touch panel Download PDFInfo
- Publication number
- CN108766371A CN108766371A CN201810725744.8A CN201810725744A CN108766371A CN 108766371 A CN108766371 A CN 108766371A CN 201810725744 A CN201810725744 A CN 201810725744A CN 108766371 A CN108766371 A CN 108766371A
- Authority
- CN
- China
- Prior art keywords
- backlight
- touch panel
- human body
- module
- control
- 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.)
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Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3406—Control of illumination source
-
- 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
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The present invention relates to backlight display technical field, more particularly to the intelligent backlight control system and its method of a kind of touch panel, the system comprises the detection modules and backlight of control module and the connection control module；The detection module, the touch panel of external console open the backlight and concurrently send level signal to the control module when detecting human body in preset detection range；The control module judges whether the touch panel is close or touch by human body within a preset period of time, and controls the backlight and persistently opens or close immediately according to the level signal；The backlight responds the control of the detection module and the control module and is turned on and off the backlight illumination of hollow character on the touch panel.Technical solution provided by the invention makes touch panel only be lit when needed, considerably reduces the waste of vehicular energy.
Description
Technical field
The present invention relates to backlight display technical field, more particularly to the intelligent backlight control system of a kind of touch panel and its
Method.
Background technology
Backlight is a kind of light source positioned at liquid crystal display behind, its illumination effect will directly influence liquid crystal display
The visual effect of module.Liquid crystal display itself does not shine, it shows that figure is the result that it modulates light.It is answered vehicle-mounted
With field, touch panel needs that backlight is arranged, and acts on the hollow out button on touch panel so that such as airconditioning control is pressed
Button, multimedia control button etc. are visible at any time to user.
Existing vehicle-mounted backlight is after the big car light of automobile is opened namely in the case that extraneous light is dark in being always on shape
State.And at this point, since user is less for the access times of button on touch panel, backlight, which is always on, leads to vehicle power supply energy
Waste.
Invention content
The invention content of the present invention is to provide a kind of the intelligent backlight control system and its method of touch panel solve
Existing vehicle-mounted backlight is after the unlatching of big car light, in being always on state.And at this point, due to the rarely needed vehicle-mounted touch panel of user
On button, vehicle-mounted backlight, which is always on, can cause vehicle power supply energy dissipation.
The present invention proposes a kind of intelligent backlight control system of touch panel, including control module and the connection control
The detection module and backlight of molding block；The detection module, the touch panel of external console, in preset detection model
Opening the backlight when detecting human body in enclosing concurrently send level signal to the control module；The control module, is used for
According to the level signal judge the touch panel whether within a preset period of time by human body it is close or touch, and control described in
Backlight is persistently opened or is closed immediately；The backlight, the control for responding the detection module and the control module
And it is turned on and off the backlight illumination of hollow character on the touch panel.
Preferably, infrared induction module is equipped in the detection module, it is infrared for being detected in preset detection range
Line whether there is, if then opening the backlight and sending the level signal to the control module, if otherwise continuing to examine
It surveys.
Preferably, when the control module judge the touch panel within a preset period of time by human body it is close or touch
When, it sends out PWM control optical signals and persistently opens backlight illumination to control the backlight；When the control module detects described touch
Control panel within a preset period of time not by human body it is close or touch when, then stop send out the pwm signal to control the backlight
Backlight illumination is closed in source immediately.
Preferably, CAN signal parsing module is equipped in the detection module, for when receiving the big car light of automobile and opening
CAN signal when start the infrared induction module.
The invention also provides a kind of intelligent backlight control methods of touch panel, include the following steps：S1, in touch surface
Detect whether human body occur in the default detection range of plate, if otherwise continuing to detect, if opening backlight illumination and carrying out down
One step；S2, judge within a preset period of time the touch panel whether by human body it is close or touch, if then when described default
Between persistently open backlight illumination in section, if otherwise closing the backlight illumination immediately and returning to the step S1.
Preferably, in the step S1, detect whether human body occur in the default detection range of the touch panel
Specially：Detection is human body infrared in the default detection range of touch panel whether there is, if so, human body occurs, if otherwise
Human body does not occur.
Preferably, before the step S1, including step：The default detection range and the preset time is arranged in S0
Section.
Preferably, include step after the step S0, before S1：S01, detects whether the big car light of current automobile is opened
It opens, if step S1 is executed, if otherwise not reacting.
From the foregoing, it will be observed that following advantageous effect can be obtained using technical solution provided by the invention：
The present invention proposes a kind of the intelligent backlight control system and its method of touch panel, mainly passes through infrared detection
Technology lights the backlight of touch panel when detecting human body (mainly hand) in preset detection range automatically,
And if closing backlight when detecting human body again in preset time period later so that touch panel is only needing
When be lit, considerably reduce the waste of vehicular energy.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the system block diagram of the intelligent backlight control system of one of which touch panel of the present invention；
Fig. 2 is the method flow diagram of the intelligent backlight control method of one of which touch panel of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes.Obviously, described embodiment is only section Example of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, the every other reality that those of ordinary skill in the art are obtained under the premise of not making the creative labor
Example is applied, shall fall within the protection scope of the present invention.
As shown in Figure 1, in the present embodiment, in order to solve existing vehicle-mounted backlight after car light unlatching, in being always on shape
State, and due to the button on the rarely needed vehicle-mounted touch panel of user, the problem of causing vehicle power supply energy dissipation, it is proposed that one
The intelligent backlight control system and its method of kind touch panel, are directed to a kind of intelligent backlight control system of touch panel,
Include mainly detection module 10, control module 20 and backlight 30；In the present embodiment, detection module 10 and control module 20
The back of the body is opened in connection, while the external vehicle-mounted touch panel of detection module 10 when for detecting human body in preset detection range
Light source 30, and to 20 transmission level signal of control module；Control module 20, for judging that touch panel is according to the level signal
It is no in preset time by human body it is close or touch, to control backlight 30 persistently open or close immediately；Backlight 30 is used
It is turned on and off the backlight illumination of hollow character on touch panel in the control of response module 20.
In the present embodiment, the regulation and control of backlight 30 are made by the testing result and control module 20 of detection module 10
With the unlatching of selection backlight 30 and closing time are meeting user to the corresponding push-botton operation of hollow character on touch panel
Under the premise of needing, waste of the vehicle control syetem to the energy is reduced, ensures the utilization rate of the energy.
Wherein, it is equipped with infrared induction module 11 in detection module 10, is mainly used for detecting in preset detection range
It whether there is to infrared ray, if then opening backlight and to 20 transmission level signal of control module, if otherwise continuing to detect.
Any object for having a temperature can infrared radiation, but the IR wavelength radiated exists according to the height of temperature
Difference.According to description of test, the temperature of people is kept approximately constant, so the IR wavelength of human body radiation is concentrated mainly on about
If 10000nm or so, with a kind of detection device, detects the infrared ray of human body radiation, and then realize infrared according to this characteristic
The function of detection.Therefore, it can realize that the detection of different objects needs by the selection of different detection modules 10, in the present embodiment
In, the detection object of detection module 10 should select the infrared detection module, fingerprint identification module 10 that can detect human body, the present embodiment is enabled to light to human body
The time of backlight 30 is more accurate, meets the needs of button on guest operation touch panel 30.
When control module 20 judge touch panel in preset time by human body it is close or touch when, send out PWM control light letter
Number persistently open backlight illumination to control backlight 30；When control module 20 detects touch panel in preset time not by people
When body is close or touches, stopping sends out the pwm signal and closes backlight illumination immediately to control backlight 30.
In the present embodiment, further include having CAN signal parsing module 12, for when receiving the big car light of automobile and open
Start infrared induction module when CAN signal.When the big car light of automobile is opened, CAN signal parsing module 12 enables detection module 10, control
Molding block 20 and backlight 30 are started to work, and touch panel is activated.The setting of the CAN signal parsing module 12 enables backlight
30 be possible to open in the case where the big car light of automobile is opened namely extraneous light it is insufficient in the case of, detection module 10 is opened
Begin to detect.If extraneous light is sufficient, that is, it is not necessarily to open car light and interior lighting device, including backlight 30, therefore CAN signal
The setting of parsing module 12 starts detection for detection module 10 and is provided with premise, ensures the effective use of the energy.
As shown in Fig. 2, the invention also provides a kind of intelligent backlight control methods of touch panel, include mainly following
Step：
S1 detects whether human body occur in the default detection range of touch panel, if otherwise continuing to detect, if opening
It opens backlight illumination and carries out in next step；
S2, judge within a preset period of time touch panel whether by human body it is close or touch, if then in preset time period
Backlight illumination is inside persistently opened, if otherwise closing backlight illumination immediately and returning to step S1.
Wherein, in the step S1, detect whether human body tool occur in the default detection range of the touch panel
Body is：Detection is human body infrared in the default detection range of touch panel whether there is, if so, human body occurs, if otherwise people
Body does not occur.
In addition, before step S1, it is additionally provided with step S0；Default detection range and preset time period.
In the present embodiment, the setting of preset time period helps to reduce the waste of the unnecessary energy, is lighted in backlight 30
In the case of, suitable preset time period is set, the needs that user uses touch panel are met, if while to touching in the short time
When controlling the progress intermittent operation of panel 30, avoids the need for repeating to light the excitation level needed for backlight 30, greatly reduce power supply
Loss.In the present embodiment, it is touched due to detection zone for detecting whether thering is user's operation touch panel or preparation to operate this
Panel is controlled, therefore detection zone should be the region before vehicle-mounted touch panel.
After step S0, before step S1, it is provided with step S01：Detect whether the big car light of current automobile is opened, if
S1 is thened follow the steps, if otherwise not reacting.
The setting of step S01 enables whether startup and whether the startup of detection module 10 of vehicle-mounted backlight 30, is in
Ambient is inadequate, that is, needs to open in the case that car light is illuminated and implement.If vehicle UV light is sufficient, interior backlight
30 can also directly acquire the information of pierced pattern on touch panel 30 without opening, and therefore, the present embodiment only need to be in ambient
It just needs to start in the case of insufficient, avoids the energy loss for starting backlight 30 under bright environment.
In order to enable the present embodiment technical solution apparent and comprehensive, backlight 30 can be with two kinds of working conditions,
Including closed state and open state；Opposite, it needs that control unit 20 is enabled to export two different pwm signal values.It closes
State is the use state of backlight 30 when user does not operate touch panel；Open state is carried on the back when being user's operation touch panel 30
The use state of light source 30.After user starts backlight 30, in preset time period when not in use, pass is switched to by open state
Closed state.
In the present embodiment, detection zone may be configured as the region in vertical range 20cm before touch panel 30, when standby
Between may be configured as 3mi n, can also be modified according to the actual needs of each user.
Preset detection range and preset time period are most preferred embodiment in the present embodiment, are not limited
It is fixed.
In conclusion whether the present embodiment has the tendency that operating touch panel, essence using infrared detection module, fingerprint identification module detection user
Really setting detection zone helps to realize the detection function of detection module, enables the vehicle control syetem in the present embodiment more smart
Standard, meets the needs of user, and greatly reduces energy waste.
Embodiments described above does not constitute the restriction to the technical solution protection domain.It is any in above-mentioned implementation
Modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution made by within the spirit and principle of mode
Within enclosing.
Claims (8)
1. a kind of intelligent backlight control system of touch panel, it is characterised in that：Described in control module (20) and connection
The detection module (10) and backlight (30) of control module (20)；
The detection module (10), the touch panel of external console, when for detecting human body in preset detection range
Opening the backlight concurrently send level signal to the control module；
The control module (20), for according to the level signal judge the touch panel whether within a preset period of time by
Human body is close or touches, and controls the backlight (30) and persistently open or close immediately；
The backlight (30), opens or closes for responding the control of the detection module (10) and the control module (20)
Close the backlight illumination of hollow character on the touch panel.
2. a kind of intelligent backlight control system of touch panel according to claim 1, it is characterised in that：The detection mould
It is equipped with infrared induction module (11) in block (10), whether there is for detecting infrared ray in preset detection range, if then
It opens the backlight (30) and sends the level signal to the control module (20), if otherwise continuing to detect.
3. a kind of intelligent backlight control system of touch panel according to claim 2, it is characterised in that：When the control
Module (20) judge the touch panel within a preset period of time by human body it is close or touch when, send out PWM control optical signal to control
It makes the backlight (30) and persistently opens backlight illumination；
When the control module (20) detect the touch panel within a preset period of time not by human body it is close or touch when, then
Stopping sends out the pwm signal and closes backlight illumination immediately to control the backlight (30).
4. a kind of intelligent backlight control system of touch panel according to claim 3, it is characterised in that：The detection mould
CAN signal parsing module (12) is additionally provided in block (10), for starting when CAN signal when receiving the big car light of automobile and opening
The infrared induction module.
5. a kind of intelligent backlight control method of touch panel, which is characterized in that include the following steps：
S1 detects whether human body occur in the default detection range of touch panel, if otherwise continuing to detect, if opening the back of the body
Light is irradiated and is carried out in next step；
S2, judge within a preset period of time the touch panel whether by human body it is close or touch, if then when described default
Between persistently open backlight illumination in section, if otherwise closing the backlight illumination immediately and returning to the step S1.
6. a kind of intelligent backlight control method of touch panel according to claim 5, which is characterized in that in the step
In S1, detect whether that human body occur is specially in the default detection range of the touch panel：
Detection is human body infrared in the default detection range of touch panel whether there is, if so, being judged as that human body occurs, if not
Then it is judged as that human body does not occur.
7. the method that a kind of intelligence according to claim 6 adjusts back light source brightness, which is characterized in that in the step S1
Before, including step：
The default detection range and the preset time period is arranged in S0.
8. the method that a kind of intelligence according to claim 7 adjusts back light source brightness, which is characterized in that in the step S0
Later, include step before S1：
S01, detects whether the big car light of current automobile is opened, if step S1 is executed, if otherwise not reacting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725744.8A CN108766371A (en) | 2018-07-04 | 2018-07-04 | A kind of the intelligent backlight control system and its method of touch panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810725744.8A CN108766371A (en) | 2018-07-04 | 2018-07-04 | A kind of the intelligent backlight control system and its method of touch panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108766371A true CN108766371A (en) | 2018-11-06 |
Family
ID=63972226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810725744.8A Pending CN108766371A (en) | 2018-07-04 | 2018-07-04 | A kind of the intelligent backlight control system and its method of touch panel |
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| CN (1) | CN108766371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110320839A (en) * | 2019-07-10 | 2019-10-11 | 珠海格力电器股份有限公司 | A kind of method, apparatus, intelligent curtain and storage medium controlling intelligent curtain |
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| JP2014135532A (en) * | 2013-01-08 | 2014-07-24 | Nec Saitama Ltd | Portable information terminal, portable information terminal power-saving method, program, and storage medium |
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| KR20040051957A (en) * | 2002-12-13 | 2004-06-19 | 삼성전자주식회사 | portable computer having keyboard back light |
| CN101515195A (en) * | 2009-03-09 | 2009-08-26 | 深圳华为通信技术有限公司 | Method for controlling shutting of display device backlight and device thereof |
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Application publication date: 20181106 |