KR19990043352A - Monitor brightness adjustment device and method for learning efficiency - Google Patents

Abstract

The present invention provides a monitor for learning efficiency to improve the concentration by reproducing a lively screen by adjusting the brightness of the screen using the level of the brightness signal, contrast and color signal of the monitor when watching the educational program and the program requiring concentration A screen brightness adjusting device and a method thereof are provided. Particularly, in the present invention, when a viewer watching a television is pressed a screen adjustment button provided on the remote controller, the signal for the button is detected as an electrical signal by the microcomputer, and then when the enable signal is input to the color signal output unit, the color signal output unit The brightness, contrast, and color level of the screen are set according to the reference level of the screen contrast when the color signal stored in is sequentially output to the chroma circuit part and output to the monitor. The present invention relates to an apparatus and a method for adjusting the screen brightness of a monitor for learning efficiency to improve learning efficiency by adjusting the level of the monitor to change the mood of the monitor.

Description

Monitor brightness adjustment device and method for learning efficiency

According to the present invention, when a viewer watching a television is pressed a screen adjustment button provided in the remote controller, the signal for the button is sensed as an electrical signal by the microcomputer, and the enable signal is input to the color signal output unit. When the color signal is sequentially output to the chroma circuit part and output to the monitor, and the signal is output from the color signal output part, the brightness, contrast, and color level of the screen according to the reference level of the screen contrast. The present invention relates to an apparatus for adjusting screen brightness for a learning efficiency and a method for improving learning efficiency by changing a mood of a monitor.

Recently, due to the wide variety of educational programs broadcasted on cable television in addition to the educational broadcast programs of general television, the number of viewers watching educational broadcasts of televisions is increasing. Most of the above educational broadcasting programs are watched at home. During the first few minutes of watching the educational broadcasting, the concentration of learning is high, but if you listen only to the educational contents flowing from the television in a quiet atmosphere, the concentration naturally decreases. Occurs. As a result of verifying the state of the brain with low concentration, according to the results, the brain wave when the human consciousness is called beta wave, and if this state continues, the brain will get confused, and if it becomes severe, it will be frustrating and the learning efficiency will be lowered. It is said to be. Therefore, in order to keep the brain in a desirable state, and active brain activity, it is necessary to maintain the low EEG state. Recently, a lot of devices forcibly increasing learning efficiency have been sold, but the price was not only high but also had to be constantly worn.

The present invention is to solve the above problems, an object of the present invention is to change the mood by changing the brightness of the monitor by changing the brightness of the monitor when the concentration when watching a program that requires education broadcasting and other concentration through the television at home The present invention relates to an apparatus for adjusting the screen of a monitor for learning efficiency, and a method of improving the learning efficiency.

1 is a block diagram showing an apparatus for adjusting screen brightness of a monitor for learning efficiency according to the present invention;

2 is a flowchart illustrating a method for adjusting screen brightness of a monitor for learning efficiency according to the present invention.

* Explanation of symbols for main parts of the drawings

10: video signal input unit 11: tuner circuit unit

12: intermediate frequency amplifier 13: video signal processing unit

14: synchronization signal amplifier 20: chroma circuit unit

21: clamping unit 22: luminance signal control unit

23: matrix portion 24: switching portion

30: integral circuit 40: microcomputer

50: color signal mixing unit 60: color signal output unit

70: switching level output unit 80: beam current control unit

90: monitor

In order to achieve the above object, the present invention includes a tuner circuit unit 11 for receiving a high frequency signal transmitted from a broadcasting station through an antenna and mixing the high frequency signal output from the local oscillation circuit to output an intermediate frequency; An intermediate frequency amplifying unit 12 connected to the tuner circuit unit 11 and amplifying a signal for increasing sensitivity and increasing selectivity and increasing image output from the intermediate frequency output from the tuner circuit unit 11; An image signal processor (13) connected to the intermediate frequency amplification (12) and processing the image signal output from the intermediate frequency amplification (12) into a signal suitable for display on a screen; A synchronization signal amplifying unit (14) connected to the video signal processing unit (13), for detecting a synchronization signal from the video signal processing unit (13) and then amplifying the synchronization signal; The signal is applied from the synchronization signal amplifying unit 14, and the beam current controller 80 and the luminance signal controller 22 are applied by receiving a pulse width modulation (PWM) signal from the microcomputer 40. An integrating circuit unit 30 for applying a low signal; Connected to the integrating circuit unit 30, the remote controller 100 detects an electrical signal for a corresponding button and outputs a pulse width modulated signal to the integrating circuit unit 30, and at the same time OSD to the color signal mixing unit 50 A microcomputer 40 for outputting a color signal; A clamping unit 21 connected to the image signal processing unit 13 and having a constant black level by a luminance signal applied from the image signal processing unit 13; A luminance signal adjusting unit 22 connected to the integrating circuit unit 30 and the clamping unit 21 and adjusting luminance of an output signal of the clamping unit 21 according to the output voltage of the integrating circuit unit 30; The matrix unit 23 is connected to the image signal processor 13 and the luminance signal controller 22 and mixes the color signal applied from the image signal processor 13 and the luminance signal output from the luminance signal controller 22. ; The matrix unit 23 and the color signal mixing unit 50, the color signal output unit 60, and the switching level output unit 70 are connected to the matrix unit 23 according to the level signal applied from the switching level output unit 70. ), A switching unit 24 for switching the color signal applied from the color signal mixing unit 50, and the color signal output unit 60; And

A beam current adjusting unit (80) for adjusting a current of the flyback transformer through a diode and a resistor (not shown) according to the voltage output from the integrating circuit unit (30); It consists of a monitor 90 for displaying the R / G / B color signal applied from the switching unit 24.

1 is a block diagram of an apparatus for adjusting a screen of a monitor for learning efficiency according to the present invention configured as described above. Hereinafter, the present invention configured as described above will be described in detail.

First, the video signal transmitted from the broadcasting station is the tuner circuit section 11 of the video signal input section 10 composed of a tuner circuit section 11, an intermediate frequency amplification 12, a video signal processing section 13 and a synchronization signal amplifying section 14 ( 11) is applied. The tuner circuit 11 mixes and detects a high frequency signal induced by an antenna and a high frequency emitted from a local oscillator and outputs an image intermediate frequency signal and an audio intermediate frequency signal. In general, the video intermediate frequency signal is output at 45.75MHz and the audio intermediate frequency signal is 41.25MHz. The intermediate frequency signal mixed and output as described above is amplified by the intermediate frequency amplification 12 connected to the tuner circuit 11. The video signal and the audio signal are output from the intermediate frequency amplification 12, and the video signal is output to the video signal processor 13 connected to the intermediate frequency amplification 12. The audio signal is not shown in the figure, but the intermediate frequency amplification ( The frequency amplified by the FM detector from the signal amplified voice intermediate frequency from 12) and the amplified voice signal is output to the outside through the speaker.

The image signal applied to the image signal processor 13 is processed into a signal suitable for being displayed on the screen, and then the color signal is output to the matrix unit 23 and the luminance signal is output to the clamping unit 21. The synchronizing signal amplifying unit 14 connected to the image signal processing unit 13 detects a synchronizing signal from the image signal processing unit 13. The general synchronizing signal is amplified, and the vertical and horizontal outputs are inputted to the monitor 90 through the integral and differential circuit parts, and the integrated circuit part 30 is a brightness of the television monitor 90 in the present invention. In order to control the characteristics of the contrast and the color level, the pulse width modulation (PWM) output from the microcomputer 40 is input, although not shown in FIG. The DC level is detected through the capacitor, and the variable range of the DC level signal is adjusted by adjusting the resistance value. In this case, the color signal mixing unit 50 adjusts the OSD color signal applied from the microcomputer 40, mixes the adjusted color signal with the color signal applied from the color signal output unit 60, and converts the mixed color signal into a switching unit ( Output to 24). The color signal output unit 60, which is connected to the color signal mixing unit 50, is applied to the color signal output unit 60 when a signal is applied from the microcomputer 40 that detects an electrical signal corresponding to the screen adjustment button provided in the remote controller 100. Color signal information set in (60) is sequentially output. In addition, the switching level output unit 70 connected to the color signal output unit 60 receives a signal from the microcomputer 40 and divides the voltage by the color signal output unit 60 in which a voltage of a predetermined level is generated. 24).

On the other hand, the video signal, unlike the audio signal may have a direct current component. Since the average level of the signal is different in the dark image and in the bright image, the black (pedestel) level fluctuates in the alternating defect circuit, so that the black level is a constant clamp circuit, and the video signal processor 13 The black level is clamped by the clamping part 21 connected with the clamp. The luminance signal adjusting unit 22 connected to the clamping unit 21 adjusts the luminance of the signal applied from the clamping unit 21 according to the voltage output from the integrating circuit unit 30. The matrix unit 23 connected to the luminance signal adjusting unit 22 is synthesized with the color difference signal applied by the image signal processing unit 13 and the luminance signal applied by the luminance signal adjusting unit 22 in which the luminance and contrast are adjusted. The switching unit 24 connected to the matrix unit 23 switches the output signal of the color signal mixing unit 50 according to the voltage output from the switching level output unit 70 and outputs the output signal to the monitor 90. The current controller 80 receives a signal from the microcomputer 40 to adjust the current flow of the flyback transformer to control the beam current of the monitor.

2 is a flowchart illustrating a method for adjusting screen brightness of a monitor for learning efficiency.

According to the flowchart of FIG. 2, a step (S10) of determining whether or not learning is performed by the remote controller 100, and if it is detected that learning is performed from the step, adjusting brightness and contrast and color signals of the screen (S20), and Step S30 of allowing the viewer to confirm whether or not the optimal learning state has been reached from the screen readjustment step S20.

Looking at the configuration of the flow chart of Figure 2, first, in the reference symbol (S10) step microcomputer 40 detects whether the viewer is pressed or not the screen adjustment button (not shown) provided in the remote controller 100, When the screen adjustment button is pressed in the sensing process, the microcomputer 40 detects an electrical signal corresponding to the screen adjustment button and applies a control signal to the color signal output unit 60. The color signal output unit 60 is stored. Color signals are sequentially output to the color signal mixer 50, and the color signal mixer 50 is mixed with the OSD color signals applied from the microcomputer 40 and applied to the switching unit 24 to be applied to the switching level output unit 70. In accordance with the present invention, the color signal is switched and applied to the monitor. In addition, the integrating circuit unit 30 that constitutes a circuit with a capacitor and a resistor can change the characteristics of the brightness and contrast of the television monitor 90. In order to control, a pulse width modulation (PWM) signal is applied from the microcomputer 40 to detect a DC level through a resistor and a capacitor, and another resistance value is adjusted to adjust a variable range of the DC level. Therefore, the screen is changed as the brightness, contrast, and color signal of the screen from the screen readjustment step S20 as described above, and in the next step S30, the color change and integration circuit of the screen is changed by the color signal output from the color signal output unit 60. If the viewer who is watching the screen readjusted due to the change in brightness and contrast by the control signal of 30 is deemed to be optimal, the screen adjustment button (not shown) provided in the microcomputer 40 is pressed again. This will be displayed in the readjusted state.

As can be seen from the above description, the present invention provides an electric signal corresponding to the screen adjustment button when the screen adjustment button provided on the remote controller is pressed by a viewer who is watching a program requesting educational broadcasting and concentration of the television. The microcomputer detects and applies the control signal by the detected signal to the color signal output unit and the integrating circuit unit to adjust the color of the screen displayed on the monitor and at the same time to change the signal displayed on the monitor by adjusting the brightness and contrast. By changing the viewer's field of view by giving life to a fixed image, there is an effect of improving learning efficiency.

Claims (3)

Adjusting the brightness of the monitor for learning efficiency to improve the concentration by reproducing the vivid screen by adjusting the brightness of the screen using the level of the brightness signal, contrast and color signal of the monitor when watching an educational program and a program requiring concentration. In the apparatus, A video signal input unit (10) comprising a tuner circuit section (11), an intermediate frequency amplifier (12), a video signal processor (13), and a synchronous signal amplifier (14) for inputting a high frequency signal transmitted from a broadcasting station; The signal is applied from the synchronization signal amplifying unit 14 included in the image signal input unit 10, and a pulse width modulation (PWM) output from the microcomputer 40 to control the characteristics of the brightness and contrast of the television monitor 90. An integrated circuit unit (30) configured to detect a DC level by receiving a pulse width modulation signal and to adjust a variable range of the DC level so that luminance and contrast change; When an electric signal corresponding to the screen adjustment button is applied from the remote controller 100, a pulse wave modulation (PWM) signal is applied to the integrating circuit unit 30, and a control signal is applied to the color signal output unit 60. A microcomputer 40 for applying an OSD color signal to the color signal mixing unit 50; A color signal output unit 60 sequentially outputting a set color signal when an electric control signal corresponding to screen adjustment is applied from the microcomputer 40; A color signal mixing unit 50 for mixing color signals applied from the microcomputer 40 and the color signal output unit 60; A switching level output unit 70 generating a voltage having a predetermined level with respect to the color signal when the control signal is applied to the color signal output unit 60, dividing the voltage of the predetermined level and outputting the divided voltage to the chroma circuit unit 20; A chroma circuit unit 20 for adjusting and outputting luminance, contrast and color levels from the luminance signal and the color signal applied from the image signal processing unit 13 and the color signal applied from the color signal mixing unit 50; As the integrating circuit unit 30 receives the pulse width modulated signal of the microcomputer 40 and varies the DC level, the current flow of the flyback transformer is controlled through a diode and a resistor to control the beam current of the monitor 90. Beam current controller 80; Screen brightness adjusting device for a monitor for learning efficiency, characterized in that consisting of a monitor for displaying an image signal applied from the chroma circuit unit 20 by the output control signal of the beam current adjusting unit (80). 2. The chroma circuit unit 20 according to claim 1, wherein the chroma circuit unit 20 according to the clamping unit 21 to make the black level constant by the luminance signal applied from the image signal processing unit 13 and the output voltage of the integrating circuit unit 30. A matrix for mixing the luminance signal adjusting unit 22 for adjusting the luminance of the output signal of the clamping unit 21 with the luminance signal output from the luminance signal adjusting unit 22 and the color signal applied from the image signal processing unit 13; And a switching unit for switching the color signals applied from the matrix unit 23, the color signal mixing unit 50, and the color signal output unit 60 in accordance with the level signal applied from the switching level output unit 70. 24) screen brightness adjusting device for learning efficiency, characterized in that consisting of. When the button for screen adjustment is input from the remote controller 100, the microcomputer 40 detects an electrical signal corresponding to the button (S10), A screen readjustment step (S20) of adjusting the brightness, contrast and color signals of the screen by a control signal output from the microcomputer 40 when a signal for screen adjustment is detected from the above step; If the screen is changed by the screen readjustment step (S20), when the learner who is watching the process is determined to be the optimum learning state, the screen is set when the button provided on the remote controller 100 is pressed again. Screen brightness adjustment method of the monitor for learning efficiency, characterized in that the step (S30).