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Display method for using LED half intensity as item background operation state and device

A technology of running status and display method, which is applied in hardware monitoring and other directions, can solve problems such as complex circuits and unintuitive device panels, and achieve clear and optimized display effects

Active Publication Date: 2008-04-30
WUHAN MIRACLE LASER SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This display method has the disadvantages that the device panel is not intuitive and the corresponding circuit is complicated.

Method used

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  • Display method for using LED half intensity as item background operation state and device
  • Display method for using LED half intensity as item background operation state and device
  • Display method for using LED half intensity as item background operation state and device

Examples

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Embodiment Construction

[0021] The following examples are intended to illustrate the present invention, but not to limit the scope of the present invention.

[0022] see figure 1 , figure 2 , image 3 , the method of the present invention is to control the duty cycle n and the frequency f of the conduction of the light-emitting diode through the program. The control program is embedded in the system program of the device, and a timer in the microcontroller is used to generate an appropriate duty cycle. The on / off mark of the duty ratio is controlled by the corresponding program to control the port of the microcontroller corresponding to the light-emitting diode. Using the residual visual characteristics of the human eye, the light-emitting diode is in a half-brightness state. By actually debugging the duty cycle of the diode conduction, This half-brightness state can be made distinct from the two states of full brightness and full darkness. Use this half-brightness state for the display of the ba...

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PUM

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Abstract

The invention relates to the technical field of LED (light-emitting diode) display in electrical equipment, and discloses a method and device for displaying the background running state of an item using half-brightness of the LED. The method of the present invention includes: 1) increasing and setting the timing initial value of the light-emitting diode conduction time TON, setting the conduction / cut-off flag to 1 and starting the initialization work of timing interruption; 2) setting the duty ratio and frequency of the light-emitting diode conduction ; 3) The micro-controller controls the light-emitting diode to be turned on and off; 4) The light-emitting diode is in a half-brightness working state; 5) The half-brightness state of the light-emitting diode is used to display the background running state of a certain item in the device. The device includes a microcontroller, a current limiting resistor, and a light emitting diode. The invention is used for displaying the running state of the background running items in the equipment, and can display four working states of a certain item in the electrical equipment with one light-emitting diode, which is simple and clear, and simplifies the display circuit.

Description

technical field [0001] The invention relates to the technical field of LED (Light Emitting Diode) display in electrical equipment, in particular to a display method using LED half-brightness as the background running state of a project. The invention also relates to a display device which uses the LED half-brightness as the background running state of the project. Background technique [0002] In an electronic device controlled by a microcontroller (MCU), two or more items usually share a digital display as the digital display of each item, and each uses a light-emitting diode to display the switch status of the corresponding item. model. The project that has been running and whose digital quantity is being displayed by the digital display is the foreground running project, and the project that has been running but the digital quantity is not displayed by the digital display is the background running project. Before the present invention was made, three states of on, off a...

Claims

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Application Information

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IPC IPC(8): G06F11/32
Inventor 张峻洪孙文
Owner WUHAN MIRACLE LASER SYST
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