KR19980048119A - TV with local key displayed on screen - Google Patents

Abstract

The present invention relates to a local key of a television used for volume up / down, channel up / down, brightness adjustment of a screen, etc. More specifically, there is no fear of damage or loss, and it is not necessary to be installed at the bottom of the cabinet of a TV. It is related to the TV which displays the local key on the screen, which is easy to produce and the cost is reduced and the function is easily expanded even when adding a new function to the local key.

The television in which the local key of the present invention is displayed on the screen includes a tuner section 11 for receiving a broadcast signal and an IF signal for modulating and amplifying a signal output from the tuner section 11 into a signal having a specific size. An amplification section 12, a main IC section 13 for processing the signals output from the IF signal amplification section 12 and separating them into R, G, and B signals and audio signals, and from the main IC section 13; A television comprising a CRT driver 14 for outputting the outputted R, G, and B signals to the CRT 15, a microcomputer 18 for controlling the entire stroke, and a local key input unit 19 set to perform a specific function. In the present invention, a pressure sensing means is installed on the surface to output a predetermined signal when a pressure by a finger is detected. The touch screen 15a installed on the CRT 15 and the signal of the touch screen 15a are microcomputers 18. ) Is provided with a touch key input unit 21 for outputting a signal that can be sensed by the viewer. When the touch key display unit 4 output command is input by pressing a specific position on the lean 15a, the touch key display unit 4 having an up / down arrow key for performing the operation of the local key at a predetermined position of the touch screen 15a. Is turned on, and the viewer inputs a signal generated from the touch screen 15a to the microcomputer 18 through the touch key signal input unit 21 by pressing a specific position of the touch key display unit 4.

Description

TV with local key displayed on screen

The present invention relates to a local key of a television used for volume up / down, channel up / down, brightness adjustment of a screen, etc. More specifically, there is no fear of damage or loss, and it is not necessary to be installed at the bottom of the cabinet of a TV. It is related to the TV which displays the local key on the screen, which is easy to produce and the cost is reduced and the function is easily expanded even when adding a new function to the local key.

In televisions or composite televisions combined with televisions and VCRs, local keys are installed on the main body of the television to adjust specific functions such as volume up / down, channelless / down, contrast adjustment and brightness adjustment.

1 is a front view showing an installation state of a local key provided in a lower end portion of a conventional television. As shown, the local keys 31, 32, 33 and 34, which are a plurality of switches that can be manually adjusted, form a local key fixing part 3 capable of installing a local key on a part of the case of the television. Reference numeral 35 is a power on / off key.

However, in the conventional TV, since the mold of the case is fixed according to the type of the TV, additional installation of the local key requires the production of a new mold, which leads to enormous excess cost and difficulty in adding a new function key. .

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to display a local key of a television on a screen by software means, thereby providing a television on which a local key is easily displayed on the screen. It is.

Another object of the present invention is to provide a television in which a local key is displayed on a screen, in which the mold structure is simplified and thus the mold manufacturing cost is reduced and the cost is reduced.

A television in which a local key of the present invention is displayed on a screen for achieving the above object comprises a tuner section 11 for receiving a broadcast signal, a signal output from the tuner section 11, and a signal of a specific size. An IF signal amplifier 12 for amplifying a signal; a main IC unit 13 for processing a signal output from the IF signal amplifier 12, and separating the R, G, and B signals into an audio signal; A CRT driver 14 for outputting the R, G, and B signals output from the IC unit 13 to the CRT 15, a microcomputer 18 for controlling the entire stroke, and a local key input unit configured to perform a specific function ( 19. A television comprising a touch screen (15), wherein a pressure sensing means is provided on a surface to output a predetermined signal when a pressure is detected by a finger, and a touch screen (15a) installed on the CRT (15) and the touch screen (15a). The touch key input unit 21 for outputting a signal of the microcomputer 18 can detect the signal of the For example, when a viewer presses a specific position on the touch screen 15a and an output command of the touch key display unit 4 is input, the viewer has an up / down arrow key for performing an operation of a local key at a predetermined position of the touch screen 15a. The touch key display unit 4 is turned on and a viewer presses a specific position of the touch key display unit 4 to input a signal generated from the touch screen 15a to the microcomputer 18 through the touch key signal input unit 21. It is characterized by.

1 is a front view of a television in which a plurality of local keys are installed at a lower end of the television;

2 is a front view of a television on which a local key according to the present invention is displayed;

3 is a schematic partial block diagram of a television conventionally used;

4 is a partial block diagram of a television equipped with a touch screen according to the present invention;

5 is a flowchart illustrating an operation state of a touch key according to the present invention.

* Description of the symbols for the main parts of the drawings *

1: TV, 2,15: CRT,

3: local key fixing part, 4: touch key display unit,

11: tuner section, 12: IF signal amplifier section,

13: main IC section, 14: CRT driving section,

15: CRT, 16: voice amplifier,

17: speaker, 18: micom,

19: local key input unit, 20: remote control,

21: touch key input unit, 31: volume key,

32: channel key, 33: contrast key,

34: Brightniski.

Hereinafter, a television in which a local key of the present invention is displayed on a screen will be described in detail with reference to the accompanying drawings.

The present invention softens a mechanical local key installed in a conventional television using a touch screen. Fig. 2 shows a touch key display section 4 substituting the local key displayed on the CRT 2 of the television according to the present invention. As shown, the touch keys for the respective functions, for example, the volume up / down touch key 31, the channel up / down 32, the contrast adjustment 33, and the brightness adjustment 34, are displayed. .

It is apparent to those skilled in the art to which the present invention pertains that it is easy to add a new function because the touch key for inputting the function control command signal can be softly extended.

In order to visually display the position of the touch key display unit 4, a specific character may be engraved on the case surface. Therefore, the viewer can instruct the touch key display unit 4 to be turned on by touching the vicinity where the specific character is displayed. An example of this particular character may be a character such as L or T or an icon (ICON).

In addition, the screen installed on the surface of the CRT (2) generates a control signal for operating the corresponding function by using a touch key screen. By pressing the arrow position of the volume up / down touch key 31, a control signal can be input. Thus, the local key fixing part 3 shown in FIG. 1 is removed and the mold is simplified.

FIG. 3 is a schematic partial block diagram of a conventional television, and FIG. 4 is a partial block circuit diagram of a television including a touch screen 15a and a touch key input unit 21 according to the present invention. Comparing FIG. 3 with FIG. 4, it can be seen that the touch screen 15a and the touch key input unit 21 are further added instead of the conventional local key input unit 19.

The signal generated by pressing the touch screen 15a is input to the touch key input unit 21. The touch key input unit 21 outputs a signal to perform a specific function according to the input signal, that is, the same function as a function performed by pressing the conventional local key input unit 19. The output signal is finally input to the microcomputer 18 and the microcomputer 18 outputs a control signal to the main IC unit 13 to perform the corresponding function.

The operating state of the television on which the local key of the present invention having the above configuration is displayed on the screen will be described using the flowchart of FIG.

The microcomputer 18 enters a standby state when power is applied to the television. At this time, when the touch key displayed at the position indicated by the specific character is pressed, the microcomputer 18 turns on the touch key display unit 4. Therefore, the touch key display unit 4 appears as shown in FIG.

The touch key display unit 4 may be configured to inject a liquid crystal material on the touch screen to display when a specific signal is input or to display when a specific command is input after storing necessary data in the OSD generator.

When the touch key display unit 4 appears on the CRT 2, the viewer inputs a command by pressing his or her desired adjustment switch with a finger. For example, when a finger is placed on an arrow for increasing the volume of the volume up / down touch key 31, a signal is generated on the touch screen 15a, and the signal is input to the touch key input unit 21. The touch key input unit 21 receives a signal generated at the position of the volume up touch key and outputs a command signal corresponding thereto.

The signal output from the touch key input unit 21 is input to the microcomputer 18. The microcomputer 18 outputs a control signal to perform a command according to the input signal. When the volume up arrow is pressed as in the above example, the microcomputer 18 outputs a volume up signal (increased voltage) to the voice amplifier 10 to increase the volume. In addition, when the channel up arrow is pressed by the viewer, the microcomputer 18 outputs a control signal to the tuner unit 11 to raise the channel.

The viewer removes his finger from the touch key display unit 4 after performing the function he intended. If no control signal is input, the microcomputer 18 measures the passage of time using an internal counter. Thereafter, when a predetermined time e.g., 3 seconds elapses, the touch key display unit 4 is turned off and removed from the screen. Therefore, the normal screen is output from the screen of the CRT 2.

As described above, according to the present invention, since the local key of the television is displayed by software means, the function can be easily expanded and the mold structure of the television case can be simplified, thereby reducing the mold production cost and reducing the cost.

Although the invention has been described in detail only with respect to the described embodiments, it will be apparent to those skilled in the art that modifications and variations can be made within the spirit and scope of the invention, and such variations or modifications will belong to the appended claims. .

Claims (2)

A tuner section 11 for receiving a broadcast signal, an IF signal amplifier section 12 for modulating and amplifying a signal output from the tuner section 11 into a signal of a specific size, and the IF signal amplifier section 12 Main IC unit 13 for processing signals outputted from the < RTI ID = 0.0 > (R) < / RTI > In a television comprising a CRT driving unit 14 for outputting, a microcomputer 18 for controlling the entire stroke, and a local key input unit 19 set to perform a specific function, The pressure sensing means is installed on the surface to output a predetermined signal when the pressure is detected by the finger. The microcomputer 18 detects the touch screen 15a installed on the CRT 15 and the signal of the touch screen 15a. And a touch key input unit 21 for outputting a signal capable of outputting a signal, and when the viewer presses a specific position on the touch screen 15a to input the touch key display unit 4 output command, The touch key display unit 4 having the up / down arrow keys for performing the operation of the local key is turned on, and the viewer touches a signal generated from the touch screen 15a by pressing a specific position of the touch key display unit 4. A television with a local key displayed on the screen, characterized by being input to the microcomputer 18 through a key signal input unit 21. The television according to claim 1, wherein the touch key display (4) is in the form of an icon comprising up / down arrow keys.