KR19990009217U - Initial motion display device on television - Google Patents

Abstract

According to the present invention, a plurality of display lamps configured on the exterior of a television are sequentially flashed while a heater forms a high temperature at the time of power-on, indicating that the set of the television is in normal operation and increasing visual effects. The present invention relates to an initial motion display device, comprising: a CRT for displaying a predetermined image on a screen by emitting hot electrons based on a high voltage supplied from an FBT (26); In a television having Ln externally, when the power-on signal is input from the control signal input unit 10, the power is supplied to the CRT, and the display elements L1 to Ln blink sequentially for a predetermined time. It is characterized in that it further comprises a control unit 12 for controlling to.

Description

Initial motion display device on television

The present invention relates to an initial motion display device in a television, and more particularly, to an initial motion display device in a television that can display that the set is in a normal operation state during an initial startup time at power-on.

Televisions which reproduce a predetermined video / audio signal through a CRT (Cathode Ray Tube) and a speaker by tuning a specific channel among a plurality of broadcast channels received through the antenna and reproducing the broadcast signal for the channel are launched into the CRT. Since hot electrons are activated at a high temperature, a heater is employed to satisfy the hot electrons to form a high temperature, thereby activating the hot electrons to output a clear image on the CRT.

However, such a television is ideal to output a clear image through the CRT at the moment the power is turned on by the user, but since it takes a predetermined time for the high temperature to be formed by the heater, the CRT until the high temperature is formed by the heater. The normal screen is not output to the screen of, but the image which is getting brighter is generally output.

Therefore, in this case, since the internal circuit constituting the set of the television performs a normal operation, but a typical image is not output on the CRT screen, a user who views it may mistake the corresponding device.

Therefore, the present invention has been devised in view of the above circumstances, and when the power is turned on, a plurality of display lamps configured on the exterior of the television are sequentially flashed while the heater forms a high temperature, indicating that the set of the television is in a normal operating state. In addition, an object of the present invention is to provide an initial motion display device in a television that can enhance visual effects.

According to an embodiment of the present invention for realizing the above object, a CRT for displaying a predetermined image on the screen by emitting hot electrons on the basis of the high pressure supplied from the FBT, and a display device for visually displaying the operating state of the system A television having an external appearance, comprising: a control unit configured to control power to be supplied to the CRT when a power-on signal is input from a control signal input unit, and to control the display element to blink sequentially for a predetermined time. An initial motion display device is provided.

According to the present invention having the above configuration, a plurality of lamps configured on the exterior of the television flashes sequentially while the heater forms a high temperature when the power is turned on, so that the user can know that the set of the television is in a normal operating state.

1 is a block diagram showing an initial operation display device in a television according to an embodiment of the present invention;

FIG. 2 is a view showing a configuration example of a display element driver and a display element shown in FIG. 1;

3 is a view showing an external configuration example of a television to which the present invention is applied.

Explanation of symbols on the main parts of the drawings

10: control signal input unit, 12: control unit,

14: tuner, 16: video IF module,

18: video signal processor, 20: video amplifier,

22: deflection portion, 24: power supply portion,

26: FBT, 28: display element driver.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention in detail.

1 is a block diagram of an initial operation display device in a television according to an embodiment of the present invention, in which reference numeral 10 denotes a remote controller for remotely controlling the television or the appearance of the television. A control signal input unit which is installed in the control unit and inputs a performance command for various functions provided to the television, and 12 is a control unit which controls the entire apparatus in response to a control signal input from the control signal input unit 10, In the present invention, the control unit 12 applies a predetermined control signal to the display element driver 28 to be described later when the power-on signal is input from the control signal input unit 10 to the front of the television as shown in FIG. The plurality of display lamps L1 to L5 installed are controlled to flash sequentially for a predetermined time.

Reference numeral 14 is a tuner for tuning a specific channel among a plurality of channels received through the antenna based on the tuning voltage VT applied from the controller 12, and 16 is a tuner of the channel tuned by the tuner 14. IF video signal is amplified and then the video IF module for detecting only the video signal from the IF amplified broadcast signal, 18 is a video signal processing unit for reproducing the video signal output from the video IF module 16, 20 is The image amplifying unit amplifies the signal output from the image signal processing unit 18 so that it can be output through the CRT.

Reference numeral 22 denotes a deflection unit for outputting a flyback pulse for driving the FBT 26 which will be described later based on the horizontal / vertical synchronization signal (Hsync / Vsync) output from the image signal processing unit 18. Is a power unit converting AC power supplied through a power plug into a DC power under the control of the control unit 12 and outputting the same to the FBT 26, and 26 operates power applied from the power supply unit 14 to the entire apparatus. It is a flyback transformer (FBT) that supplies power.

Reference numeral 28 denotes a display element driver for driving the display element 30 under the control of the control unit 12, and 30 denotes a plurality of display elements installed in a predetermined part of the exterior of the television as shown in FIG. The display element 30 is a display lamp which usually shows a standby power state, a channel switching state, a power state, and the like of the television.

In addition, in the present invention, as shown in FIG. 2, the display element driver 30 has a base end connected to the output terminal of the controller 12 via a resistor R1, and the first display element L1 connected to the emitter end. ) Is connected to the transistor Q1, and when the high-level control signal CON1 is applied from the control unit 12, the transistor Q1 is turned on so that the first display element L1 connected to the emitter end is connected. Lights up. As shown in FIG. 2, the display element driver 30 is composed of transistors Q2-Qn configured in the same manner as the above-described configuration, and the control unit 12 transmits a predetermined control signal to the transistors Q2-Qn. (CON1-CONn) is applied to cause the second-n display elements L2-Ln connected to the emitter terminals of the transistors Q2-Qn to blink sequentially.

Next, the operation of the initial operation display device in the television according to the embodiment of the present invention having the above configuration will be described in detail.

First, when a power-on signal is input from the control signal input unit 10, the control unit 12 applies a predetermined control signal to the power supply unit 24 so that the DC power converted by the power supply unit 24 is connected to the rear end. The first-first connected to the emitter terminal of the transistors Q1-Qn by applying a high level signal sequentially to the transistors Q1-Qn of the display element driver 28 while being applied to the FBT 26. The n display elements L1 to Ln flash in sequence.

As a result, the display lamps L1 to Ln installed on the front of the television flash sequentially to notify the user that the set is in a normal state.

On the other hand, the deflection unit 22 applies a flyback pulse signal to the FBT 26 based on the horizontal / vertical synchronization signal provided from the image signal processing unit 18, and the FBT 26 is supplied from the power supply unit 24. The high voltage driving voltage is provided to the CRT based on the supplied DC power and the flyback pulse signal from the deflection section 22.

Thus, while the heater employed in the CRT is operating to form a high temperature, the hot electrons are not fully activated and the screen gradually brightens on the CRT. However, when a high temperature is formed by the heater after a predetermined time, the hot electrons are sufficiently generated. When activated, the screen displayed on the CRT screen becomes clear.

At the same time, the controller 12 applies a predetermined control signal to the display element driver 28 when the predetermined time elapses from the time when the display elements L1 to Ln are driven, and applies the display elements L1 to Ln. Stop operation.

Accordingly, the display elements L1 to Ln may be driven only while the heater of the CRT forms a high temperature of a constant temperature, and may notify that the set of the television is operating normally when the CRT screen is not normally output. Will be.

As described above, according to the initial operation display apparatus for a television according to an embodiment of the present invention, when the television is powered on and the set is normally operated, the status is displayed through a display lamp installed on the front of the television to turn on the power. From one point of time, it is possible to prevent the CRT from misunderstanding the set failure that the CRT cannot output a clear image while the heater is forming a high temperature, and to enhance the visual effect by a plurality of display lamps blinking sequentially.

Claims (1)

In a television equipped with a CRT that emits hot electrons based on the high voltage supplied from the FBT 26 to display a predetermined image on the screen, and visually displays the operating state of the system. , When the power-on signal is input from the control signal input unit 10 is further provided with a control unit 12 for controlling the power to be supplied to the CRT and the display elements (L1-Ln) to sequentially flash for a predetermined time, An initial motion display device for a television, characterized in that it is configured.