KR0180339B1 - Incidence light driving control system of television - Google Patents

Abstract

The present invention relates to a means for automatically rotating the angle displacement of the screen according to the brightness of the ambient light incident on the screen in a screen display device, such as a TV receiver system, conventionally the angle displacement drive unit and the remote control system provided in the neck of such a system Means for adjusting the screen to the viewer by using the known means, but the means for automatically rotating the screen to the viewer side when the reflected light shines on the screen is not preferred because it is not provided.

The present invention is installed in the set main body 31 of the screen display device to improve the problem, the light sensor unit by the left / right optical sensor (11, 16) for detecting the brightness of the light generated from the left / right side (1), an angular displacement drive unit 2 for rotating the screen by an angle according to the control of the microprocessor according to the brightness state detected in the left / right direction of the optical sensor unit 1, and the angular displacement drive unit 2 ) Is a microprocessor for controlling the drive according to the brightness detection state of the light sensor (11, 16) to provide an incident light drive control system of the screen display device.

Description

Incident light drive control system such as screen display device

1 is a system circuit block diagram of a TV (TV) television receiver which is a conventional screen display device.

Figure 2 is an embodiment showing a TV receiver system of the present invention.

3 is a system circuit block diagram mounted in FIG.

FIG. 4 is a view illustrating the light sensor unit in FIG. 3 in more detail.

5 is a reference diagram of an On Screen Display (OSD) screen related to the present invention.

6 is an embodiment of a light sensing control program according to the present invention.

* Explanation of symbols for main parts of the drawings

1: optical sensor unit 2: angular displacement drive unit

3: light sensing control program

The present invention relates to a screen display device, such as a TV receiver, in particular, so that the screen brightness, etc. due to the external reflected light of such a screen display device can be automatically maintained in an appropriate viewing state.

The TV receiver is known as a screen display device, and the TV receiver is an image display such as a video signal as a direct light emitting means through a thin screen using a water tube or a wall-mounted Tien (TN) device.

For example, such a TV receiver is shown in FIG.

Here, the remote control receiver 52, to which the remote control transmitter 51 is wirelessly connected, is connected to the input port side of the system microprocessor 54, the keypad 53 for various key operations, and the microprocessor for system control. (54), a memory storing channel selection information, an OSD circuit 60 for displaying OSD characters, etc., a tuner 55 for tuning a broadcast signal from an antenna, and an IF signal processor. And a video signal processor 57, an audio signal processor 58, a signal synthesizer 61, a speaker 59, a water pipe 62, and the like.

In the conventional TV receiver system, a means for rotating the antenna of the system main body by using a remote control to receive a reception radio wave well, or rotating the screen of the set main body at an angle at which the user is located, is maintained. It is known from Korean Patent No. 94-1455 or 94-5798.

That is, here, the body can be arbitrarily driven up / down / left / right by driving the angular displacement drive mechanism by the tilt motor and gear means provided in the neck of the set main body by the operation of the remote control transmitter.

As another conventional technique, a TV receiver set includes a human body sensor and the like, and when the viewer is within the viewing distance, the system power is cut off or the brightness is darkly adjusted.

However, in the past, when the viewer of the TV receiver is exposed to the screen of the TV receiver while watching through the receiving hall, the image of the screen is completely invisible or blurred so that the shade or the set is turned back. It was to act.

In addition, when the environment is difficult to turn the set back to be a means to protect the screen through a separate sun screen.

As described above, when there is reflected light such as sunlight shining on the screen of the TV receiver set, no countermeasure is provided by itself, which is not preferable.

An object of the present invention is to detect the reflected light, such as the ambient sunlight in the system main body to automatically drive the screen to a good position to view the screen portion to improve the conventional problems, the viewer is not limited to the occurrence of the reflected light surrounding the good screen It is to maintain the viewing state in the state.

The present invention particularly enables the screen to be rotated according to the light detection state of the left / right optical sensor unit and the left / right optical sensor unit which are installed at a position in consideration of the reflected light reflected on the screen so as to realize the object of the above example. And a microprocessor for controlling the angular displacement driving unit to be displaced, and an angular displacement driving unit for angular displacement driving the screen under the control of the microprocessor.

Hereinafter, by referring to this in more detail with the accompanying drawings will be understood more specific features of the present invention.

That is, FIG. 2 shows the set body of the TV receiver system according to the present invention.

Here, the left and right optical sensors 11 and 16 installed on the set main body 31 such as the TV receiver 3 and detecting the brightness of the light generated from the left and right sides, and the optical sensors 11 and 16 It consists of an angular displacement drive unit 2 for rotating the screen according to the detected state.

The angular displacement drive unit 2 is a swivel (Swivel) movement in the normal left / right direction to maintain the viewing state in the desired direction by the user can be implemented by a swivel motor or the like.

3 shows a system circuit associated with FIG.

Here, the optical system unit 1 including the left and right optical sensors 11 and 16 is connected to the conventional system microprocessor 54, while the angular displacement drive unit 2 is connected to the output port side. .

In addition, FIG. 4 is a detailed embodiment of the optical sensor unit 1 and the like related to FIG.

Here, the left and right amplifiers 12 and 14 are connected to the left and right optical sensors 11 and 16, respectively, and the left and right Schmitt triggers 15 and 18 are output to the left and right amplifier units 12 and 17, respectively. Is connected to the left and right Schmidt triggers 13 and 18, and the left and right monostable multis 14 and 19 are connected, and the outputs of these monostable multis 14 and 19 are flip flops. 15 is connected, and the output of the flip-flop 15 is configured to provide the control input logic of the microprocessor 54.

In addition, the sensors of the photosensors 11 and 16 may be phototransistors or constitute CDS elements, and the angular displacement driver 2 connected to the output side of the microprocessor 54 is positive / negative. It consists of a reversible motor driver 21 and a drive motor 22 for rotating the screen at an angle.

6 shows an optical sensing control program 3 mounted on the system microprocessor 54 or the like.

In this example, the left (L) and right (R) light is detected from the start step (step 301), and whether LR is applied (step 302), and when the L is greater than or equal to R, the OSD screen of FIG. 5 is displayed. After the step (303), 1 is added to the L value and operated so as to be equal to Y1 set to a constant rotational displacement angle (step 304).

Then, when the first detected brightness value is X, the brightness value x1 in the angularly displaced state in step 304 is x

If it is less than (step 305), if x1 is equal to or equal to x, L + 2 is driven to rotational displacement value Y2 (step 306), and this operation continues to check if xn x is equal or not (step 306). Displace to n = Yn (Stem 308) and end.

When L is smaller than R in step 302 (step 309), the OSD screen of FIG. 5 is displayed (step 310), and then 1 is added to the R value so that it is equal to Y1 set to a constant rotational displacement angle. (Step 311).

After that, when the first detected brightness value is x, it is checked whether the brightness value x1 in the angularly displaced state in step 311 is smaller than x (step 312), and if x1 x or the same, R + 2 is the rotation displacement value Y2. Drive is continued (step 313), and this operation is continuously checked for xn x or the same (step 314), and shifted to R + n = Yn (step 315).

If the rotation key is directly input from the system (step 316), the system also includes a series of processing steps (step 318) after the OSD screen is displayed (step 317).

On the other hand, the TV receiver system as described above describes this as a representative type of the screen display device, but can be widely applied to a variable screen or fixed screen display mechanism such as an advertisement screen display, an electronic bulletin board, not such a screen display device. .

The present invention of such a configuration is as follows.

That is, in the incident light drive control system of the screen display device according to the present invention, the left / right optical sensors 11 and 16 installed on the set main body 31 side as shown in FIGS. 2 and 3 show the screen of the set main body 31. It detects the external light brightness reflected to the side and provides it to the microprocessor 54.

The microprocessor 54 drives the angular displacement driving unit 2 according to the output state of the left / right optical sensors 11 and 16 by the left / right optical sensors 11 and 16 to rotate the screen to the side where the light is not provided.

The rotation displacement operation at this time is to rotate by the set displacement angle as shown in Table 1.

On the other hand, in the displacement operation as described above, the brightness signal detected by the left optical sensor 11 is amplified through the amplifier 12 as shown in FIG. 4, and then waveform-shaped by the Schmitt trigger 13 to the monostable multi 14. Provided to set the flip-flop 15, on the other hand, the brightness signal detected by the right optical sensor 16 is amplified via the amplifier 17 and then waveform-shaped by the Schmitt trigger 18 and then monostable multi When provided with (19) to reset the flip-flop 15, the microprocessor (5) sets the drive motor 22 of the angular displacement drive unit (2) through the motor drive unit 21 according to their input conditions It will be controlled in reverse.

Therefore, the set main body 31 is to rotate a certain displacement to the left or right in accordance with the amount of brightness provided by the light sensor (11, 16) of the left and right, this operation is performed through the OSD screen of FIG. The user can see what is being adjusted automatically while viewing the screen.

In addition, if necessary, the OSD screen may also display a message such as how much the angle is shifted left or right in proportion to the brightness of the incident light along with the ruler.

On the other hand, the above work is to be processed with the optical sensing control program 3 of FIG. 6, in which case the system detects the left (L) / right (R) light, the L value is R Or, if L is greater than or equal to R, the OSD screen of FIG. 5 is displayed when L is greater than or equal to R, and the screen is rotated by an angle of 5 degrees, which is the value of L plus 1 (see steps 301 to 304).

After that, when the first detected brightness value is x, it is checked whether the brightness value x1 is smaller than x when the rotation angle value is arbitrarily set by 5 degrees. If x1 is less than or equal to x, there is still a lot of reflected light. In this state, L + 2 is used to drive Y2 with a rotational displacement value of 10 degrees, and this operation is continuously checked by displacing L + n = Yn until it reaches a predetermined range by checking whether it is xn x or equal (see steps 305 to 308). ) It finds the optimal state and stops it.

In addition, when L is smaller than R, the left side is darker than the right side, so the OSD screen of FIG. 5 is displayed, and the right side is rotated by 5 degrees, which is equal to the value of R plus 1 (step 309). To step 311).

When the first detected brightness value is x, it is checked in step 311 that the brightness value x1 in the angularly displaced state is smaller than x. If x1 is equal to or equal to x1, R + 2 is driven by the rotation displacement value Y2. By continuing to do this, by checking whether xn x or the same and displacing it to the optimal position until R + n = Yn (see steps 312 to 315), the user can obtain the optimal viewing angle.

If necessary, the screen position can be adjusted manually by pressing the rotation key on the system.

The present invention can automatically maintain the screen at the optimal viewing position when there is external reflection light reflected from the screen display device, such as a TV receiver, it is possible to obtain a good convenience of the system.

In addition, the user of such a system may damage the user's vision because the screen state may be displaced to an appropriate position with respect to external light.

The screen can be seen without hitting it is a beneficial feature that can protect the user's vision.

Claims (1)

In the drive control system of a screen display device which allows the screen to be rotated left / right by an angular displacement drive unit provided in the neck of the screen display device, it is generated on the left / right side while being installed in the set main body 31 of the screen display device. Left and right optical sensors 11 and 16 for detecting the brightness of the light, and left and right amplifiers 12 and 17 connected to the outputs of the left and right optical sensors 11 and 16 to amplify a signal, The left and right Schmitt triggers 13 and 18 connected to the outputs of these left and right amplifier sections 12 and 17 and the outputs of the left and right Schmitt triggers 13 and 18 Forward / reverse control information is provided to the microprocessor 54 while being connected to the left / right monostable multis 14 and 19 generating a constant pulse output and the outputs of the left and right monostable multis 14 and 19. The flip-flop 15 and the output of the flip-flop 15 to the left / right directions of the left / right optical sensors 11 and 16. The angular displacement driver 2 for rotating the screen by an angle according to the control of the microprocessor 54 and the angular displacement driver 2 of the left / right optical sensors 11 and 16. An incident light drive control system for a screen display device, characterized by comprising a microprocessor (54) for driving control in accordance with the brightness detection state.