CN202584696U - Digital photo frame display screen brightness night mode regulation and control system - Google Patents
Digital photo frame display screen brightness night mode regulation and control system Download PDFInfo
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- CN202584696U CN202584696U CN 201220138116 CN201220138116U CN202584696U CN 202584696 U CN202584696 U CN 202584696U CN 201220138116 CN201220138116 CN 201220138116 CN 201220138116 U CN201220138116 U CN 201220138116U CN 202584696 U CN202584696 U CN 202584696U
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Abstract
The utility model discloses a digital photo frame display screen brightness night mode regulation and control system. The system comprises a shell, a display screen and a circuit board which are installed in the shell. The circuit board is provided with a photoelectric analog-to-digital converter, a microprocessor and a brightness adjusting module. The photoelectric analog-to-digital converter is connected with the microprocessor. The microprocessor is connected with the display screen through the brightness adjusting module. According to the utility model, a brightness sensor arranged in the digital photo frame correspondingly senses ambient brightness changes and generates a voltage signal and the voltage signal is converted into a digital signal through the photoelectric analog-to-digital converter. The microprocessor processes the signal and the signal is input to a PWM controller. The PWM controller correspondingly outputs an impulse waveform and controls the brightness adjusting module so as to realize brightness adjustment of the display screen. Compared to the current system, by using the system of the utility model, shimmer regulation and control of the digital photo frame in the night mode is realized and a problem that the digital photo frame display screen brightness can not be automatically dimmed at night is solved.
Description
Technical field:
The utility model belongs to DPF; What be specifically related to is a kind of DPF brightness of display screen Night regulator control system; This DPF can automatically adjust to brightness of display screen according to ambient brightness; Especially can carry out the low-light regulation and control to the brightness of display screen that is in Night, avoid influencing user's sleep.
Background technology:
DPF is the fashion electron-like consumer goods, also is the indispensable ornament of family that it has inherited digital fashion and the tender feeling of photo frame, and purposes is very extensive; Outward appearance adopts the moulding of common photo frame, partly changes the photo in the middle of the original photo frame into LCDs, mixes power supply; Storage medium etc.; Can play-over digital photograph, making in the same photo frame can the loop play photo, more has superiority than the simple function of common photo frame.
Because the handling characteristics of DPF can be placed in the bedroom by the user usually and use as decorating, and the DPF brightness of display screen of purpose fixedly installs; Can manually carry out brightness regulation through unified OSD, but when existing ambient brightness to cross dark or crossing when bright the brightness of display screen change automatically in time; Especially have a rest night the user; When night, light was dark, brightness can not dim thereupon, has had a strong impact on user's sleep.
Summary of the invention:
For this reason, the purpose of the utility model is to provide a kind of DPF brightness of display screen Night regulator control system, to solve the problem that present DPF brightness of display screen can not dim at night automatically.
For realizing above-mentioned purpose, the utility model mainly adopts following technical scheme:
A kind of DPF brightness of display screen Night regulator control system; Comprise housing, be installed in display screen and wiring board in the housing; Said wiring board is provided with photoelectricity analog to digital converter, microprocessor and brightness regulation module; Said photoelectricity analog to digital converter is connected with microprocessor, and said microprocessor is connected with display screen through the brightness regulation module.
Also be provided with a photic zone on the wherein said housing, be provided with luminance sensor in this photic zone, said luminance sensor is connected with microprocessor through the photoelectricity analog to digital converter.
Also be provided with a PWM controller on the wherein said wiring board, said microprocessor is controlled the brightness regulation module through the PWM controller.
The utility model DPF brightness of display screen Night regulator control system changes through the corresponding induced environment brightness of luminance sensor that is arranged in the DPF; Produce voltage signal; And convert digital signal to through the photoelectricity analog to digital converter; By microprocessor processes and be input to the PWM controller, the corresponding output pulse waveform control of PWM controller brightness regulation module realizes the brightness regulation to display screen.Compare with existing number, the utility model has been realized the low-light regulation and control of DPF under Night, has solved the problem that the DPF brightness of display screen can not dim at night automatically.
Description of drawings:
Fig. 1 is the perspective view of the utility model.
Fig. 2 is the system principle diagram of the utility model.
Identifier declaration among the figure: housing 1, display screen 2, photic zone 3.
Embodiment:
For setting forth the thought and the purpose of the utility model, will combine accompanying drawing and specific embodiment that the utility model is done further explanation below.
See also Fig. 1, shown in Figure 2, Fig. 1 is the perspective view of the utility model; Fig. 2 is the system principle diagram of the utility model.The utility model provides a kind of DPF brightness of display screen Night regulator control system; Be mainly used in the present DPF display screen of solution and can not adjust screen intensity automatically according to ambient brightness; When especially DPF is in Night; Can not when night, light was dark, carry out the low-light regulation and control, the problem that brightness of display screen is dimmed thereupon.
Wherein the described DPF of the utility model includes housing 1, is installed in display screen 2 and the wiring board that is connected with display screen 2 in the housing 1, and above-mentioned housing 1 is provided with a photic zone 3, and this photic zone 3 is positioned at a display screen below or a side.
Be welded with photoelectricity analog to digital converter, microprocessor, PWM controller and brightness regulation module on the wiring board; Be provided with a luminance sensor in the above-mentioned photic zone; This luminance sensor is connected with microprocessor through the photoelectricity analog to digital converter; Be used for responding to through photic zone 3 ambient brightness to external world, and the corresponding induced voltage signal that produces.
Luminance sensor is connected with microprocessor through the photoelectricity analog to digital converter; And the voltage signal that correspondence is produced converts digital signal to through the photoelectricity analog to digital converter; Correspondence sends to microprocessor; Microprocessor is handled this signal; Through instructing with the corresponding duty cycle pulse Waveform Control of PWM controller output that microprocessor connects, brightness regulation module or backlight illumination regulating circuit to be controlled, the brightness of the corresponding control display screen of brightness regulation module or backlight illumination regulating circuit is afterwards adjusted thereupon.
Wherein above-mentioned photoelectricity analog to digital converter and PWM controller can be the separate unit modules of individualism, also can embedded micro-processor in, realization and principle of work that it is concrete are same as described above.
More than be that a kind of DPF brightness of display screen Night regulator control system that the utility model is provided has carried out detailed introduction; Used concrete example among this paper the structural principle and the embodiment of the utility model are set forth, above embodiment just is used to help to understand the method and the core concept thereof of the utility model; Simultaneously, for one of ordinary skill in the art, according to the thought of the utility model, the part that on embodiment and range of application, all can change, in sum, this description should not be construed as the restriction to the utility model.
Claims (3)
1. DPF brightness of display screen Night regulator control system; Comprise housing, be installed in display screen and wiring board in the housing; It is characterized in that said wiring board is provided with photoelectricity analog to digital converter, microprocessor and brightness regulation module; Said photoelectricity analog to digital converter is connected with microprocessor, and said microprocessor is connected with display screen through the brightness regulation module.
2. DPF brightness of display screen Night regulator control system according to claim 1; It is characterized in that also being provided with on the said housing photic zone; Be provided with luminance sensor in this photic zone, said luminance sensor is connected with microprocessor through the photoelectricity analog to digital converter.
3. DPF brightness of display screen Night regulator control system according to claim 1 is characterized in that also being provided with a PWM controller on the said wiring board, and said microprocessor is controlled the brightness regulation module through the PWM controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220138116 CN202584696U (en) | 2012-04-01 | 2012-04-01 | Digital photo frame display screen brightness night mode regulation and control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220138116 CN202584696U (en) | 2012-04-01 | 2012-04-01 | Digital photo frame display screen brightness night mode regulation and control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202584696U true CN202584696U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220138116 Expired - Fee Related CN202584696U (en) | 2012-04-01 | 2012-04-01 | Digital photo frame display screen brightness night mode regulation and control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202584696U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327194A (en) * | 2013-06-18 | 2013-09-25 | 广东欧珀移动通信有限公司 | Mode switching method and device for browser skin brightness |
| CN104078012A (en) * | 2014-07-25 | 2014-10-01 | 上海工程技术大学 | Brightness adjustment circuit based on Raspberry Pi |
| 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 |
| CN111883069A (en) * | 2020-07-29 | 2020-11-03 | 深圳市泰霖科技有限公司 | Method and system for realizing backlight adjustment of digital photo frame based on ambient light sensor |
-
2012
- 2012-04-01 CN CN 201220138116 patent/CN202584696U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103327194A (en) * | 2013-06-18 | 2013-09-25 | 广东欧珀移动通信有限公司 | Mode switching method and device for browser skin brightness |
| CN104078012A (en) * | 2014-07-25 | 2014-10-01 | 上海工程技术大学 | Brightness adjustment circuit based on Raspberry Pi |
| 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 |
| CN105459865B (en) * | 2015-11-19 | 2018-06-26 | 广东好帮手电子科技股份有限公司 | A kind of vehicle-mounted heel row that there is intelligence to adjust display function headrest and implementation method |
| CN111883069A (en) * | 2020-07-29 | 2020-11-03 | 深圳市泰霖科技有限公司 | Method and system for realizing backlight adjustment of digital photo frame based on ambient light sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20200401 |