CN108122521A - A kind of headrest screen and implementation method - Google Patents
A kind of headrest screen and implementation method Download PDFInfo
- Publication number
- CN108122521A CN108122521A CN201611081471.5A CN201611081471A CN108122521A CN 108122521 A CN108122521 A CN 108122521A CN 201611081471 A CN201611081471 A CN 201611081471A CN 108122521 A CN108122521 A CN 108122521A
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- unit
- screen
- display
- headrest
- brightness
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention discloses a kind of headrest screen and implementation method, headrest, which shields it, includes headrest screen body, the ARM processing system modules rested the head on screen body, microprocessor unit, display panel module unit, brightness impression unit are arranged on, the brightness impression unit, microprocessor unit, ARM processing system modules, display panel module unit are sequentially connected.Present invention headrest screen is provided with brightness impression unit, detects ambient brightness according to brightness impression unit, and realizes adjusting screen intensity.
Description
Technical field
The present invention relates to vehicle electronics field more particularly to a kind of headrest screen and implementation method pillow and implementation methods.
Background technology
With the continuous improvement of scientific and technological level, electronic product is more and more, various computers, mobile phone etc., automotive entertainment system
Etc. having been enter into people’s lives circle.The wind major part such as car, car vehicle is all mounted with headrest screen on the seat at present, to improve
The comfort level of passenger.Most of brightness regulation shielded rest the head on as that cannot adjust, seldom part can manually, so not
Resting the head on for brightness can be adjusted and shield the problems such as eye strain for be easy to causeing passenger causes myopia and influences the comfort level of passenger.
Therefore, the prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned deficiencies of the prior art, it is an object of the invention to provide a kind of headrest screen and implementation methods, it is intended to
Solve the problems, such as that existing headrest shields its screen intensity and can not automatically adjust.
Technical scheme is as follows：
A kind of headrest screen and implementation method, wherein, shield body including headrest, the ARM processing systems being arranged on headrest screen body
Module, microprocessor unit, display panel module unit, brightness impression unit, the brightness impression unit, microprocessor unit,
ARM processing system modules, display panel module unit are sequentially connected.
The headrest screen, wherein, the microprocessor unit connects the display by a display backlight driving unit
Panel module unit.
The headrest screen, wherein, the display panel module unit includes a display screen, and the brightness impression unit is set
On a display screen.
The headrest screen, wherein, the position of brightness impression unit is arranged to transparent material on the display screen.
The headrest screen, wherein, a CPU module and connection are equipped in the ARM processing system modules
In the Audio processing modules, power adaptation module, DDR memory modules of the CPU module.
A kind of implementation method of headrest screen as described above, wherein, including step：
Brightness impression unit constantly samples current ambient brightness and exports AD values, and the AD values sampled are transported to micro- place
Device unit is managed, computing comparison is carried out by microprocessor unit and default environment value, computing comparing result is sent to ARM processing systems
System module passes through the ARM processing system modules and performs corresponding adjusting screen ginseng value task.
The implementation method, wherein, the microprocessor unit is connected described aobvious by a display backlight driving unit
Display screen modular unit, the microprocessor unit exports PWM pulse width signals to the display backlight driving unit, by described aobvious
Show the display brightness of backlight driving unit control display screen modular unit.
The implementation method, wherein, the display panel module unit includes a display screen, and the brightness impression unit is set
It puts on a display screen.
The implementation method, wherein, the position of brightness impression unit is arranged to transparent material on the display screen.
The implementation method, wherein, the microprocessor unit is carried out by serial mode and ARM processing system modules
Communication.
Advantageous effect：Present invention headrest screen is provided with brightness impression unit, and it is bright to detect environment according to brightness impression unit
Degree, and realize adjusting screen intensity.
Description of the drawings
Fig. 1 is a kind of structure diagram of rest the head on screen and implementation method preferred embodiment of the present invention.
Specific embodiment
The present invention provides a kind of headrest screen and implementation method, to make the purpose of the present invention, technical solution and effect more clear
Chu, clearly, the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, is not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is a kind of structure diagram of rest the head on screen and implementation method preferred embodiment of the present invention, such as scheme
It is shown, shield body including headrest, be arranged on the ARM processing system modules 20 rested the head on screen body, microprocessor unit 30, show
Display screen modular unit 10, brightness impression unit 40, the brightness impression unit 40, microprocessor unit 30, ARM processing system moulds
Block 20, display panel module unit 10 are sequentially connected.
The microprocessor unit 30 connects the display panel module unit 10 by a display backlight driving unit 50.
The display panel module unit 10 includes a display screen, and the brightness impression unit 40 is set on a display screen.
The position of brightness impression unit 40 is arranged to transparent material on the display screen.
The brightness impression unit 40 is provided with a light sensor, and MAX44009 models can be selected in light sensor,
It is a kind of analog/digital output device, can be worked in the supply voltage scope of 3.0V to 3.6V, working frequency for 10 ~
100kHz, 0 ~ 70 DEG C of temperature range can operational excellence under various brightness.The light sensor has optical signal
It is converted into the signal adapter of electric signal（Such as photodiode or Cds photo resistance）, signal amplification regulating device and modulus turn
Parallel operation（ADC）, all signals can be amplified regulating device and analog-digital converter is integrated in encapsulation smaller size smaller, such as 2mm × 2mm
It is interior（UTDFN is encapsulated）.Photodiode therein is discrete photodiode, including one or more operational amplifiers：
One of them may also need to level-one amplification, provide additional gain for the conversion of electric current to voltage.The photodiode
Branch circuit is further included, for powering, it is ensured that highly reliable signal chains.In order to reduce the interference of infrared ray, the light
Two photodiodes can be used in inductor, and the use element all sensitive to visible ray and infrared light, another is using only
To the element of infrared photaesthesia, the response of the latter is finally subtracted with the former response, infrared light influence is minimized, it can
It obtains accurately visible light-responded.
Brightness impression unit 40 be mounted on on display screen（As display screen panel on）, for ambient brightness sampling most
Best placement, and the panel at 40 position of brightness impression unit is transparent material, it is ensured that ambient brightness will not be subject to any screening
Gear and attenuation, so that 40 ambient light of brightness impression unit is unaffected, it is consistent with actual environment brightness, ensure brightness impression
The accuracy that unit 40 is answered to sample ambient brightness.Preferably to embody the use habit and demand that hommization meets different people,
The selectable regulative mode of design in system, such as selection are adjusted, and system will turn off manual setting, and selection, which is closed, to be adjusted, and is
System will automatically turn on manual setting offer user and adjust manually, and system default is adjusting.
System default opens regulatory function（That is brightness impression unit 40）, the brightness impression unit 40 is bright to current environment
Degree is constantly sampled and exports an AD value, is sampled AD values and is transported to microprocessor unit 30, by microprocessor unit 30 and
Default current context value carries out computing comparison, and computing comparing result is sent to ARM processing system modules 20, passes through the ARM
Processing system modules 20 perform corresponding adjust and shield ginseng value task.
Specifically, exporting PWM pulse width signals all the way by microprocessor unit 30, should to display backlight driving unit 50
PWM pulse width signals can adjust the electric current that display backlight driving unit 50 is output to display panel module unit 10, with control display screen
Brightness, realize the adjusting of brightness of display screen.
The another way of microprocessor unit 30 realizes information by the communication of serial mode and ARM processing system modules 20
Alternating, ARM processing system modules 20 are sent to according to the computing comparing result of microprocessor unit 30, at the ARM
It manages system module and performs corresponding adjusting screen ginseng value task, specifically by ARM processing system modules 20 to the video RGB of each functional status
Tristimulus signals are adjusted, and the video RGB tristimulus signals after adjustment are output to display panel module unit and carry out image
It has been shown that, allows image display to become soft etc., mitigates visual fatigue phenomenon.Can determine whether it is currently white by the vehicle-mounted rear file leader of the present invention
My god, cloudy day or at night, so as to adjust the brightness of display screen of the system and colour temperature, reduce visual fatigue.
For example, ambient brightness is divided into multiple grades in advance, such as it is divided into five grades from low to high：The first estate,
Two grades, the tertiary gradient, the fourth estate, the 5th grade（Five grades are scope）, this five grades correspond to different respectively
Brightness of display screen and colour temperature when detecting that current ambient brightness belongs to some grade, then control adjustment display screen to phase
The brightness answered and colour temperature.Such as the brightness range of display screen is from 0 to 100, then when current environment brightness belongs to the first estate,
Then brightness of display screen is adjusted to 20, if current environment brightness belongs to the second grade, brightness of display screen is adjusted to 40, if currently
When ambient brightness belongs to the tertiary gradient, then brightness of display screen is adjusted to 60, if current environment brightness belongs to the fourth estate, shows
Display screen brightness adjustment is 80, if current environment brightness belongs to five grades, brightness of display screen is adjusted to 100.Correspondingly, color
Temperature is also adjusted in the manner described above, and the first estate corresponds to colour temperature 3500K, and the second grade corresponds to colour temperature 5000K, the tertiary gradient
Corresponding colour temperature 6500K, the fourth estate correspond to colour temperature 8000K, and the 5th grade corresponds to colour temperature 9500K.
A CPU module is equipped in the ARM processing system modules 20, is connected to the CPU module
Audio processing modules, power adaptation module, DDR memory modules, Video＆RGB processing modules etc..The ARM processing systems
Module 10 of uniting can be specifically ARM10E processors, using instruction and the memory construction of data separating, interior 32 × 16MAC of band,
Leave SDP coprocessor interfaces, VFP10 therein（Vector floating-point unit）For seven grades of flowing structures, system clock 300MHz
Clock.The display panel module 10 includes at least one piece of display screen, and capacitance touch screen, the display screen can be used in the display screen
Size can be with the whole size for being adapted to, shielding no more than headrest of headrest screen.Such as two pieces of display screens are set, two pieces of display screens
Size can be 7 ~ 14 cun, such as 10 cun.
Based on above system, the present invention also provides a kind of implementation method of headrest screen as described above, including step：
Brightness impression unit constantly samples current ambient brightness and exports AD values, and the AD values sampled are transported to micro- place
Device unit is managed, computing comparison is carried out by microprocessor unit and default environment value, computing comparing result is sent to ARM processing systems
System module passes through the ARM processing system modules and performs corresponding adjusting screen ginseng value task.
Further, the microprocessor unit connects the display panel module unit by a display backlight driving unit,
The microprocessor unit exports PWM pulse width signals to the display backlight driving unit, is driven by the display backlight single
The display brightness of first control display screen modular unit.
Further, the display panel module unit includes a display screen, and the brightness impression unit is set on a display screen.
Further, the position of brightness impression unit is arranged to transparent material on the display screen.
Further, a CPU module is equipped in the ARM processing system modules and is connected to the centre
Manage Audio processing modules, power adaptation module, the DDR memory modules of device module.
It should be appreciated that the application of the present invention is not limited to the above, it for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (10)
1. a kind of headrest screen and implementation method, which is characterized in that shield body including headrest, the ARM being arranged on headrest screen body
Processing system modules, microprocessor unit, display panel module unit, brightness impression unit, the brightness impression unit, microprocessor
Device unit, ARM processing system modules, display panel module unit are sequentially connected.
2. headrest screen according to claim 1, which is characterized in that the microprocessor unit is driven by a display backlight
Unit connects the display panel module unit.
3. headrest screen according to claim 1, which is characterized in that the display panel module unit includes a display screen, institute
Brightness impression unit is stated to set on a display screen.
4. headrest screen according to claim 3, which is characterized in that the position of brightness impression unit is set on the display screen
For transparent material.
5. headrest screen according to claim 1 a, which is characterized in that centre is equipped in the ARM processing system modules
Reason device module and Audio processing modules, power adaptation module, DDR the storage mould for being connected to the CPU module
Block.
6. a kind of implementation method of headrest screen as described in claim 1, which is characterized in that including step：
Brightness impression unit constantly samples current ambient brightness and exports AD values, and the AD values sampled are transported to micro- place
Device unit is managed, computing comparison is carried out by microprocessor unit and default environment value, computing comparing result is sent to ARM processing systems
System module passes through the ARM processing system modules and performs corresponding adjusting screen ginseng value task.
7. implementation method according to claim 6, which is characterized in that the microprocessor unit is driven by a display backlight
Moving cell connects the display panel module unit, and microprocessor unit output PWM pulse width signals to the display backlight drives
Moving cell passes through the display brightness of the display backlight driving unit control display screen modular unit.
8. implementation method according to claim 6, which is characterized in that the display panel module unit includes a display screen,
The brightness impression unit is set on a display screen.
9. implementation method according to claim 8, which is characterized in that the position of brightness impression unit is set on the display screen
It is set to transparent material.
10. implementation method according to claim 6, which is characterized in that the microprocessor unit by serial mode with
ARM processing system modules are communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081471.5A CN108122521A (en) | 2016-11-30 | 2016-11-30 | A kind of headrest screen and implementation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611081471.5A CN108122521A (en) | 2016-11-30 | 2016-11-30 | A kind of headrest screen and implementation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108122521A true CN108122521A (en) | 2018-06-05 |
Family
ID=62227155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611081471.5A Pending CN108122521A (en) | 2016-11-30 | 2016-11-30 | A kind of headrest screen and implementation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108122521A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459865A (en) * | 2015-11-19 | 2016-04-06 | 广东好帮手电子科技股份有限公司 | Vehicle-mounted back-row headrest with intelligent adjustment display function and implementation method |
-
2016
- 2016-11-30 CN CN201611081471.5A patent/CN108122521A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105459865A (en) * | 2015-11-19 | 2016-04-06 | 广东好帮手电子科技股份有限公司 | Vehicle-mounted back-row headrest with intelligent adjustment display function and implementation method |
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Application publication date: 20180605 |
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