CN102708784A - Electrification management system and method of display screen - Google Patents
Electrification management system and method of display screen Download PDFInfo
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- CN102708784A CN102708784A CN2012102233651A CN201210223365A CN102708784A CN 102708784 A CN102708784 A CN 102708784A CN 2012102233651 A CN2012102233651 A CN 2012102233651A CN 201210223365 A CN201210223365 A CN 201210223365A CN 102708784 A CN102708784 A CN 102708784A
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Abstract
The invention provides an electrification management system of a display screen, which comprises a processor, a switch power supply module, a display screen module and a power supply module, wherein the processor is used for controlling the switch power supply module to supply power to the display screen module. The invention also provides an electrification management system of the display screen. Because the processor controls the switch power supply module to supply the power to the display screen module after initializing display drive and refreshing a video memory, uncontrollable display conditions that the display screen shows blurred, and the like can be avoided in an electrification starting process, and further, the visual perceived effects of users for a product is improved.
Description
Technical field
The present invention relates to field of display devices, be specifically related to electric management system and method on a kind of display screen.
Background technology
Under market economy environment, different company vies each other at the electronic product of identical industry exploitation, and product human oriented design degree is the key factor of the Company products market competitiveness.The startup interface that the electronic product start shows is the first impression that the user uses this product, and a bad startup interface can let the user that the quality of this product is thrown doubt upon.
Sometimes display screen is based on the consideration of cost or technology; Display screen powers on the back self can not initialization; The flower screen appears on the display screen and cause electronic product to power on; The interface of display screen self initialization does not sometimes meet product requirement, and perhaps sometimes the power-up initializing information of some hardware shows on display screen.Under these situation, electronic product is during system's electrifying startup, and the display interface of product requirement can appear not meeting in display screen, thereby influences electronic product start display effect.
In the prior art, the general employing changed display screen, and electric energy auto-initiation selections in, and meet the start shooting display screen at interface of electronic product perhaps to managing chip of the extra increase of display screen, is used for the power-up initializing display screen.So just increase the material of electronic product, increased cost.
Summary of the invention
The present invention is directed to problem such as spark plate on the display screen that exists in the prior art, electric management system on a kind of display screen be provided, comprising:
Processor, switch power module, display panel module, and supply module;
Said processor is behind the initialization display driver, and controlling said switch power module is said display panel module power supply;
Said switch power module comprises: switch module connects said processor; Power module connects said display panel module;
Said supply module connects said switch module, for system provides working power.
Further, said power module can be regulated the brightness of display panel module under the control of processor.
Further, said display panel module is LCD.
The present invention also provides a kind of display screen management method that powers on, and may further comprise the steps:
Step 1: system powers on, and the switch power module acquiescence is in off-state, is not the display panel module power supply;
Step 2: processor operational system software, initialization display driver;
Step 3: processor control switching module is the display panel module power supply.
Further, before processor control switching module was the display panel module power supply, processor refreshed video memory and is " interfacial state that meets product requirement ".
Further, after processor control switching module was the display panel module power supply, processor was adjusted brightness of display screen through the size of control power module output current.
The invention has the beneficial effects as follows, adopt simple circuit configuration, a kind of low cost solution is provided, avoided electronic product during system's electrifying startup, display screen the flower screen occurs, dodge screen, shows demonstration situations such as uncontrolled.
Description of drawings
Fig. 1 is the structured flowchart of electric management system on a kind of display screen of the present invention.
Fig. 2 is the circuit theory synoptic diagram of an embodiment of electric management system on a kind of display screen of the present invention.
Fig. 3 is the power on process flow diagram of management method of a kind of display screen of the present invention.
Embodiment
Electric management system is as shown in Figure 1 on a kind of display screen provided by the invention, and this system comprises processor 101, switch power module 102, display panel module 103, and supply module 104.
Switch power module 102 further comprises: switch module 1021, connection processing device 101; Power module 1022 connects display panel module 103.Processor 101 can be through the size of control power module output current, the brightness when regulating display panel module 103 work.
Preferably, after processor 101 initialization display drivers, refreshing video memory is the interfacial state that meets product requirement.The said interfacial state that meets product requirement can be to welcome interface, application program initial interface or other preset interfaces.
Fig. 2 is a specific embodiment of electric management system on the display screen shown in Figure 1.Wherein:
A kind of display screen starting up method provided by the invention is as shown in Figure 3, and said method comprises:
S301, system power on, and the switch power module acquiescence is in off-state, are not the display panel module power supply;
S302, processor operational system software, the initialization display driver;
S303, processor control switching module are the display panel module power supply.
From the above, the present invention provides a kind of display screen management method that powers on, and processor 101 be power module 1022 power supplies through switch module 1021 control supply modules 104, and then control power module 1022 is that display panel module 103 is supplied power.When system powered on, switch module 1021 states were for breaking off, and supply module 104 is not power module 1022 power supplies, thereby display panel module 103 is in outage blank screen state.When processor 101 operational system softwares, behind the initialization display driver, processor 101 CS modules 1021 states are closed, and supply module 104 is power module 1022 power supplies, thereby power module 1022 is display panel module 103 power supplies.This display screen management method that powers on has been avoided during system's electrifying startup, and display panel module 103 shows the flower screen, dodges screen or other uncontrollable states.
Preferably; Before processor 101 control switching modules 102 are display panel module 103 power supplies; Refreshing video memory is the interfacial state that meets product requirement; For example welcome interface, application program initial interface, or other preset interfaces, make display screen power on and promptly show this satisfactory interface;
Preferably, after processor 101 control switching modules 102 were display panel module 103 power supplies, processor 101 was adjusted the brightness of display panel module 103 through the size of control power module 1022 output currents, makes display panel module 103 operate as normal.
In conjunction with the specific embodiment of electric management system on the display screen shown in Figure 2, introduce in detail display screen of the present invention power on the management method following:
Before circuit powered on, the pin GP0 [10] of processor (CPU) was a low level, and direction is input, and electronic switch is in off state.After powering on, processor (CPU) system software that brings into operation, initiating hardware equipment; If system software does not change the state of GP0 [10]; Electronic switch will be in off state always so, and power supply chip (Power IC) also is in the not duty of cutting off the power supply always, current source will be provided can not for the back light unit of LCD; The LCD back light unit is in off-position, shows blank screen.Accomplish the initialization of LCD control module driving at processor after, processor uses the interface refresh frame buffering (Frame Buffer) that meets product requirement, and the direction of then adjusting GP0 [10] is output, and level is a height, makes electronic switch closes.After the electronic switch closes, supply voltage begins the power supply to Power IC, and Power IC begins constant current source to the LCD back light unit to be provided.The GPIO simulation PWM of processor (CPU) realizes the brightness regulation to LCD.Processor is through changing GP2 [15] pin state; Export the pulse square wave of certain dutycycle; (Power IC) is under the electric power thus supplied when power supply chip, and the pulse square wave control power supply chip (Power IC) of this dutycycle outputs to the size of current of LCD, the brightness of decision LCD.LCD begins operate as normal, shows to meet the initial interface of product requirement, avoids LCD to power on the display interface that Hua Pinghuo does not meet product requirement occurring thereby reach.
More than electric management system and method on a kind of display screen that the embodiment of the invention provided have been carried out detailed introduction, but the explanation of above embodiment just is used for help understanding method of the present invention and core concept thereof, should not be construed as limitation of the present invention.The technician in present technique field is in the technical scope that the present invention discloses, and the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.
Claims (6)
1. electric management system on the display screen comprises at least:
Processor, switch power module, display panel module, and supply module;
Said processor is behind the initialization display driver, and controlling said switch power module is said display panel module power supply;
Said switch power module comprises: switch module connects said processor; Power module connects said display panel module;
Said supply module connects said switch module, for power module provides working power.
2. electric management system on the display screen according to claim 1 is characterized in that, said power module can be regulated the brightness of display panel module under the control of processor.
3. electric management system on the display screen according to claim 1 is characterized in that, said display panel module is LCD.
4. display screen management method that powers on comprises:
Step 1: system powers on, and the switch power module acquiescence is in off-state, is not the display panel module power supply;
Step 2: processor operational system software, initialization display driver;
Step 3: processor control switching module is the display panel module power supply.
5. the display screen according to claim 4 management method that powers on is characterized in that, before said step 3, also comprises, processor refreshes video memory and is " interfacial state that meets product requirement ".
6. the display screen according to claim 4 management method that powers on is characterized in that, after said step 3, also comprises, processor is adjusted the brightness of display panel module through the size of control power module output current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012102233651A CN102708784A (en) | 2012-07-02 | 2012-07-02 | Electrification management system and method of display screen |
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| CN2012102233651A CN102708784A (en) | 2012-07-02 | 2012-07-02 | Electrification management system and method of display screen |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016201728A1 (en) * | 2015-06-17 | 2016-12-22 | 深圳市华星光电技术有限公司 | Display panel and drive method therefor |
| WO2018171428A1 (en) * | 2017-03-21 | 2018-09-27 | 昆山国显光电有限公司 | Drive method for organic light-emitting display |
| CN109062532A (en) * | 2018-06-27 | 2018-12-21 | 努比亚技术有限公司 | LCD blank screen processing circuit, method, apparatus and computer readable storage medium |
| CN109407356A (en) * | 2017-08-17 | 2019-03-01 | 上海帆声图像科技有限公司 | Display screen powers on voltage-stabilizing power supply system and display screen powers on pressure stabilizing method of supplying power to |
| CN116029327A (en) * | 2022-12-28 | 2023-04-28 | 东信和平科技股份有限公司 | Passive visual smart card, screen swiping control method and device and storage medium |
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| CN109062532B (en) * | 2018-06-27 | 2021-07-20 | 努比亚技术有限公司 | LCD black screen processing circuit, method, device and computer readable storage medium |
| CN116029327A (en) * | 2022-12-28 | 2023-04-28 | 东信和平科技股份有限公司 | Passive visual smart card, screen swiping control method and device and storage medium |
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Address after: 518051 Guangdong city of Shenzhen province Nanshan District Yuquanlu Road Yizhe building 10 floor Applicant after: Biologic medical Science and Technology Co., Ltd. is opened in Shenzhen Address before: 518051 Guangdong city of Shenzhen province Nanshan District Yuquanlu Road Yizhe building 10 floor Applicant before: Sonoscape Inc. |
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Application publication date: 20121003 |