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A color temperature adjustment circuit, circuit board, and teaching all-in-one machine

A color temperature adjustment and all-in-one machine technology, applied in the field of teaching all-in-one machines, can solve problems such as losing the eye protection mode

Active Publication Date: 2021-05-07
SCT OPTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the software fails or the reference is adjusted, the LCD glass cannot achieve the effect, and the effect of the eye protection mode will be lost

Method used

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  • A color temperature adjustment circuit, circuit board, and teaching all-in-one machine
  • A color temperature adjustment circuit, circuit board, and teaching all-in-one machine
  • A color temperature adjustment circuit, circuit board, and teaching all-in-one machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 It is a schematic block diagram of the color temperature adjustment circuit provided by Embodiment 1 of the present invention. The color temperature adjustment circuit includes a main control circuit 110 , a switching control circuit 120 , a normal light bar circuit 130 and a low blue light bar circuit 140 . The main control circuit 110 is connected with the switching control circuit 120 for sending a switching control signal to the switching control circuit 120; the switching control circuit 120 is connected with the main control circuit 110, the normal light bar circuit 130, and the low blue light bar circuit 140, and After receiving the switching control signal, the switching control circuit 120 is configured to control the light bar of the low blue light bar circuit 140 to light up when the teaching all-in-one machine is powered on; when the teaching all-in-one machine is running normally, switch to the normal light bar circuit 130 The light bar glows.

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Embodiment 2

[0057] In this embodiment, a circuit board includes any one of the color temperature adjustment circuits provided in Embodiment 1.

[0058] The technical solution of this embodiment, through the form of software control of one group of lamp bead groups with reduced color temperature and another group of lamp bead groups with standard color temperature in the light source, when the software control fails, it is automatically converted to hardware control, By default, the lamp bead group with reduced color temperature is controlled to achieve the effect of entering the eye protection mode.

Embodiment 3

[0060] In this embodiment, an all-in-one teaching machine includes the circuit board provided in the second embodiment.

[0061] The technical solution of this embodiment, through the form of software control of one group of lamp bead groups with reduced color temperature and another group of lamp bead groups with standard color temperature in the light source, when the software control fails, it is automatically converted to hardware control, By default, the lamp bead group with reduced color temperature is controlled to achieve the effect of entering the eye protection mode.

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Abstract

The invention discloses a color temperature adjustment circuit, a circuit board and a teaching all-in-one machine. The color temperature adjustment circuit includes: a main control circuit, a switching control circuit, a normal light bar circuit, and a low blue light bar circuit; the main control circuit is connected to the switching control circuit, and is used to send a switching control signal to the switching control circuit; the switching control circuit is connected with the main control circuit, the normal light bar circuit, and the low blue light bar circuit, and is used to receive the switching control signal, and the switching control circuit is configured to be When the teaching all-in-one machine is just powered on, the light bar controlling the low blue light bar circuit lights up; when the teaching all-in-one machine is running normally, the light bar switched to the normal light bar circuit lights up. The present invention achieves the effect of automatically entering the eye protection mode in the event of software failure through software control of one group of lamp bead groups with reduced color temperature and another group of lamp bead groups with standard color temperature in the light source.

Description

technical field [0001] The embodiments of the present invention relate to the field of teaching all-in-one machines, in particular to a color temperature adjustment circuit, a circuit board, and a teaching all-in-one machine. Background technique [0002] At present, the eye protection mode of teaching all-in-one machines on the market is mostly realized by modifying the display effect or adjusting the switch of liquid crystal molecules. Modifying the display effect is mainly to adjust the overall color in the form of software, so that the color can mimic warm colors and reduce the blue color temperature in the original image. [0003] The eye protection mode implemented by software only deals with the intensity of blue light from the surface, and fails to directly control the blue light from the light source. The existing technology is only a solution to the symptoms rather than the root cause. Once the software fails or the benchmark is adjusted, the LCD glass cannot achi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/20G09B23/18H05B44/00
CPCG09B23/183H05B45/00Y02B20/30
Inventor 张志城周小燕何利民郭腾跃
Owner SCT OPTRONICS