KR20070045006A - Apparatus for controlling rotating of liquid crystal display monitor and method for controlling thereof - Google Patents

Abstract

The present invention is to ensure a wide viewing angle regardless of the position of the user by automatically rotating the liquid crystal display monitor according to the movement of the user, and a detection camera mounted on the liquid crystal display monitor to detect the user's movement and A rotation means provided at the bottom of the liquid crystal display monitor to adjust the rotation of the liquid crystal display monitor; an image data processing unit for converting and storing the image captured by the sensing camera into an electrical signal; and a recent image captured by the sensing camera. The position movement detector for detecting the position movement of the user by comparing the previous image data previously stored in the data and the image data processor, and the position of the user to be the center of the screen of the detection camera according to the position change detected by the position movement detector. Rotation angle to calculate rotation angle It provides a calculation unit, and a rotation angle calculating unit controlling the rotation of the liquid crystal display monitor to be rotated by rotation angle including a rotation control means for controlling the driving of the rotation means by a calculating device and a method of manufacturing the same.

Liquid Crystal Display, Monitor, Rotation, Driving Motor

Description

Apparatus for controlling rotating of Liquid crystal display monitor and method for controlling Technical Field

1 is an example in which a rotation control device of a liquid crystal display monitor according to an embodiment of the present invention is used in a notebook computer.

2 is a block diagram illustrating an apparatus for controlling rotation of a liquid crystal display monitor according to an exemplary embodiment of the present invention.

3 and 4 are views for explaining an operation in which the liquid crystal display monitor automatically rotates according to a user's movement according to an embodiment of the present invention.

5 is a flowchart illustrating a rotation control method of a liquid crystal display monitor according to an exemplary embodiment of the present invention.

6 and 7 are detailed views of the method shown in FIG. 5.

** Explanation of symbols for main parts of drawings **

1; laptop computer 12; liquid crystal display monitor

14; body 16; detection camera

18; rotating means 18a; support

18b; gear 18b; drive motor

20; image data processing unit 30; position movement detection unit

40; main processing unit 50; rotation angle calculation unit

60; rotating means controller 70; timer

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display monitor, and more particularly, to a rotation control device for a liquid crystal display device monitor in which the monitor automatically rotates according to a user's movement, and a control method thereof.

The liquid crystal display injects a liquid crystal material having anisotropic dielectric constant between the upper transparent insulating substrate and the lower transparent insulating substrate, and adjusts the intensity of the electric field formed in the liquid crystal material to change the molecular arrangement of the liquid crystal material. A display device expresses a desired image by adjusting the amount of light transmitted through a transparent insulating substrate.

Such liquid crystal displays have better image quality than other display apparatuses, and are mainly used for mobile image display apparatuses due to their features and advantages such as light weight, thinness, and low power consumption. In addition, televisions for receiving and displaying broadcast signals, Its use is being diversified to monitors of notebook computers and computers.

However, liquid crystal display devices used for monitors such as televisions, notebook computers, and PCs are fixed to each body, and the viewing angle is limited when the user moves while viewing the video object.

Therefore, there is a problem that it is difficult to properly enjoy the entire screen of the image according to the location of the user.

Due to this problem, the liquid crystal display is provided with a means for adjusting left and right according to the movement of the user, but it requires a great inconvenience to be adjusted manually whenever the user moves, and if the volume and weight are large, such as a TV, There is a problem that is difficult to adjust by turning.

Therefore, the technical problem to be achieved by the present invention is to control the rotation of the liquid crystal display monitor to ensure the viewing angle irrespective of the user's position by automatically rotating the liquid crystal display monitor when the user moves while viewing the image It is to provide a device.

Another object of the present invention is to provide a rotation control method of a liquid crystal display monitor for automatically rotating the liquid crystal display monitor according to the movement of the user.

Another technical problem to be achieved by the present invention is not limited to the technical problems mentioned above, and other technical problems that are not mentioned to those skilled in the art from the following description. It will be clearly understood.

The rotation control apparatus of the liquid crystal display device according to an embodiment of the present invention for achieving the above technical problem is provided with a sensing camera mounted on the liquid crystal display monitor for detecting a user's movement, and a lower portion of the liquid crystal display monitor Rotating means for adjusting the liquid crystal display monitor to be rotated, an image data processing unit for converting and storing an image captured by the sensing camera into an electrical signal, and a previous image previously stored in the image data processing unit and the latest image data captured by the sensing camera. A position movement detector for detecting the position movement of the user by comparing data, a rotation angle calculator configured to calculate a rotation angle such that the position of the user is the center of the screen of the detection camera according to the position change detected by the position movement detector; And only the rotation angle calculated by the rotation angle calculation unit To rotate and a rotation control means for controlling the driving of the rotary means.

Here, the timer for controlling the operating time of the rotation means or the sensing camera, respectively, characterized in that it is further included.

The rotating means may include a support formed on the liquid crystal display monitor, a gear fixed to an end of the support, and a driving motor for controlling the driving of the gear.

According to another aspect of the present invention, there is provided a method for controlling rotation of a liquid crystal display device, the method comprising: a first step of providing a sensing camera and a rotating means in a liquid crystal display monitor; A second step of grasping, a third step of detecting the presence or absence of the user's position movement after the second step, and a calculation of the rotation angle according to the change in the user's position movement when the user's position movement is present after the third step A liquid crystal display such that the user's position becomes the center of the screen of the sensing camera according to the fourth step, the fifth step of controlling the rotation means so that the liquid crystal display monitor is rotated by the rotation angle calculated through the fourth step, and the fifth step. And a sixth step of rotating the display device monitor.

In this case, the second step may include capturing an image of a user with a sensing camera, processing a photographed image, and then determining a location of the user using the processed image data, and storing image data. It is characterized by including.

The third step may include comparing the latest image data captured by the sensing camera with previously stored previous image data, and determining whether the user's recent position matches the previous position through comparison.

Specific details of other embodiments are included in the detailed description and drawings. Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. Like reference numerals refer to like elements throughout.

Hereinafter, a rotation control apparatus of a liquid crystal display monitor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is an example in which a rotation control device of a liquid crystal display monitor according to an embodiment of the present invention is used in a notebook computer.

Here, an example in which the rotation control apparatus of the liquid crystal display monitor according to the exemplary embodiment of the present invention is applied to a notebook computer is not limited thereto, but the present invention may be applied to a monitor of a television or a PC.

As shown, a notebook computer (hereinafter, referred to as a “laptop”) 1 according to an embodiment of the present invention is largely composed of a liquid crystal display monitor 12 and a main body 14 and a liquid crystal display monitor 12 Rotation control device is provided in the LCD, so that the liquid crystal display monitor 12 is free to rotate as the user moves.

The rotation control device (not shown) of the liquid crystal display monitor 12 for this purpose includes a sensing camera 16 that detects the movement of the user on the top of the liquid crystal display monitor 12, and the liquid crystal according to the movement of the user. And rotating means 18 for adjusting the display device monitor 12 to rotate. This rotation control device may be provided in the notebook (1) built-in or may be provided in a separate external form.

Accordingly, the notebook computer 1 configured as described above automatically rotates the liquid crystal display monitor 12 without the need to directly turn the liquid crystal display monitor 12 to the left or the right when the user moves while watching the image. In addition, it provides a wide viewing angle for the user to always watch the entire screen of the video regardless of the location.

FIG. 2 is a block diagram illustrating a rotation control device of a liquid crystal display monitor according to an embodiment of the present invention, and FIGS. 3 and 4 are diagrams illustrating a liquid crystal display monitor according to an embodiment of the present invention. It is a figure for explaining the operation of the automatic rotation.

First, referring to FIG. 2, a rotation control device (not shown) of a liquid crystal display monitor 12 according to an embodiment of the present invention may include a sensing camera 16 mounted on the liquid crystal display monitor 12 and a rotation means. 18, an image data processing unit 20, a position movement detecting unit 30, a main processing unit 40, a rotation angle calculating unit 50, a rotating means control unit 60, and a timer 70 are configured.

The sensing camera 16 is mounted above the liquid crystal display monitor 12 to sense a user's movement. The sensing camera 16 may use a cam or CCD camera capable of capturing an image.

In this case, the sensing camera 16 may be formed integrally with the liquid crystal display monitor 12 or may be separately provided, and the position of the sensing camera 16 is not limited to the illustrated position and is used to detect the movement of the user. Any position of the liquid crystal display monitor 12 may be provided as long as it is an easy position.

As shown, the rotating means 18 is usually provided at the lower end of the liquid crystal display monitor 12 to function to rotate the liquid crystal display monitor 12.

In one embodiment, the rotating means 18 drives the support 18a for supporting the liquid crystal display monitor 12, the gear 18b fixed to the end of the support 18a, and the gear 18b. It consists of a drive motor 18c for controlling.

Therefore, when the gear 18b rotates under the control of the drive motor 18c, the liquid crystal display monitor 12 rotates the support 18a by a predetermined angle accordingly.

The image data processor 20 is a series of image processing processes for processing image data captured by the sensing camera 16, and converts and stores an image captured by the sensing camera 16 into an electrical signal.

The position movement detector 30 compares the latest image data captured by the sensing camera 16 with previous image data previously stored in the image data processor 20 to detect a change in the position movement of the user. The position movement detector 30 is associated with the image data processor 20.

The rotation angle calculator 50 calculates the rotation angle of the liquid crystal display monitor 12 according to the movement change of the user detected by the position movement detection unit 30 described above.

When calculating, the image displayed on the screen of the sensing camera 16 is biased in one direction according to whether the user's position detected by the sensing camera 16 is moved, and thus the image biased in one direction is displayed on the screen of the sensing camera 16. Calculate the angle of rotation so that it is centered. Here, the rotation angle is an angle at which the liquid crystal display monitor 12 is to be rotated.

The rotation means controller 60 controls the driving of the rotation means 18 so that the liquid crystal display monitor 12 rotates by the rotation angle calculated by the rotation angle calculator 50. In other words, the driving means 18 controls the drive of the drive motor 18c to rotate the gear 18b.

The timer 70 is for checking the start / end time of operation of the rotating means 18 or the sensing camera 16, respectively.

The main processor 40 controls the operation of the entire system, and is connected to the position movement detector 30, the rotation angle calculator 50, the rotation means controller 60, and the timer 70 to smoothly perform various operations. To make it work.

For example, when the movement state of the user is detected through the position movement detector 30, data corresponding to the movement and the change of the position of the user is transmitted to the rotation angle calculator 50, and the rotation angle calculator 50 rotates a predetermined rotation. When the angle is calculated, the control signal corresponding thereto is transmitted to the rotating means controller 60 to control the driving motor 18c of the rotating means 18. In addition, the operation time of the rotation means control unit 60 and the position movement detection unit 30 is checked through the timer 70.

The rotation control device of the liquid crystal display monitor 12 according to the exemplary embodiment of the present invention configured as described above detects the movement of the user in real time through the detection camera 16, and if the user moves, By calculating the rotation angle and automatically rotating the liquid crystal display monitor 12 by the rotation angle, it is possible to secure a viewing angle for viewing the entire screen of the video image at any position.

For example, an operation process will be described with reference to FIGS. 3 and 4 as follows.

3 and 4 (a) is a view showing a change in the movement of the user, Figures 3 and 4 (b) is a view showing the shape of the image processing after capturing the change in the user's movement with the sensing camera. .

As shown in (a) of FIG. 3, when the user A located in front of the screen of the liquid crystal display monitor 12 moves to the right, the screen of the sensing camera 16 is displayed as shown in (b). (16a) The image is taken away from the center.

Then, the recently imaged image data is compared with previously stored previous image data to detect the presence or absence of the user's movement according to the match.

When the user A is detected to move to the right as described above, the control means to immediately drive the drive motor (18c of FIG. 2) through the rotation means control unit (60 of FIG. 2), according to an embodiment of the present invention The rotation control device is programmed such that the user A captured by the sensing camera 16 is always in the center of the screen 16a of the sensing camera 16.

Accordingly, as shown in FIG. 4, the position of the user A is rotated by driving the driving motor 18c to rotate the liquid crystal display monitor 12 to the right by a predetermined angle θ. ) Adjust to center.

In this case, the driving motor (18c of FIG. 2) is driven to rotate by the calculated rotation angle θ by calculating the rotation angle θ corresponding to the position change d according to the user's movement.

At this time, since the driving of the driving motor 18c immediately reacts whenever the user A moves, it is easy to take an overload. Therefore, it is preferable to operate the driving motor 18c after designating an appropriate delay through the timer (70 in FIG. 2). Do.

Hereinafter, a method of controlling rotation of a liquid crystal display monitor according to an exemplary embodiment of the present invention will be described with reference to FIGS. 5 to 7.

FIG. 5 is a flowchart illustrating a rotation control method of a liquid crystal display monitor according to an exemplary embodiment of the present invention, and FIGS. 6 and 7 are detailed views of the method illustrated in FIG. 5.

Referring to FIG. 5, first, in step S1, the liquid crystal display monitor 12 includes the sensing camera 16 and the rotation means 18, and then the user's position is detected by the sensing camera 16.

Here, the step (S1) of determining the position of the user may include capturing an image of the user through the sensing camera 16 as illustrated in FIG. 6 and processing the captured image ( S13), determining the user's position through the image processed image data (S15), and storing the image data (S17).

Next, in the step S2, the presence or absence of the user's movement through the detection camera 16 in real time.

In this case, the method for detecting the presence or absence of the user's movement as compared to the latest image data captured from the sensing camera 16 and the previous image data previously stored in the previous step (S21), and through the comparison as shown in FIG. In operation S23, a determination is made whether or not there is a match.

If the latest image data captured by the sensing camera 16 and the previous image data previously stored in the previous step match through the comparison, the operation ends.

Next, in step S3, if there is a movement of the user calculates the rotation angle according to the change in the user's position.

In this case, the rotation angle is a rotation angle at which the liquid crystal display monitor 12 is to be rotated differently according to a change in the position of the user, and it is preferable that the position of the user is always calculated so that the center of the screen of the sensing camera 16 is located.

Next, in step S4, the liquid crystal display monitor 12 controls the drive motor 18c of the rotating means 18 to rotate by the calculated rotation angle.

In this case, the driving motor 18c may be easily overloaded when the user reacts immediately and moves every time the user moves, so that the driving motor 18c may be operated after designating a delay at predetermined time intervals through the timer 70.

Finally, in step S5, the user's position is adjusted to be in the center of the screen of the sensing camera 16 by rotating the liquid crystal display monitor 12 according to the control of the previous step.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that.

Therefore, since the embodiments described above are provided to completely inform the scope of the invention to those skilled in the art, it should be understood that they are exemplary in all respects and not limited. The invention is only defined by the scope of the claims.

As described above, according to the present invention, the liquid crystal display monitor is automatically rotated according to the movement of the user while watching the image, thereby providing the user with a viewing angle for viewing the entire screen at any position. When the user moves, there is no need to directly rotate the liquid crystal display monitor left and right, thereby maximizing convenience.

Claims (6)

A detection camera mounted on the liquid crystal display monitor to detect a user's movement; Rotating means provided at a lower end of the liquid crystal display monitor to adjust the liquid crystal display monitor to rotate; An image data processor converting the image captured by the sensing camera into an electrical signal and storing the electrical signal; A position movement detection unit for detecting the position movement of the user by comparing the latest image data captured by the detection camera with previous image data previously stored in the image data processor; A rotation angle calculator configured to calculate a rotation angle such that the position of the user is the center of the screen of the detection camera according to the position change detected by the position movement detector; And And a rotation means control unit for controlling the driving of the rotation means to rotate by the rotation angle calculated by the rotation angle calculation unit. The method of claim 1, And a timer for controlling the operating time of the rotating means or the sensing camera, respectively. The method according to claim 1 or 2, The rotating means A support formed in the liquid crystal display monitor; A gear fixed to an end of the support to rotate the liquid crystal display monitor; and And a drive motor for controlling the drive of the gears. A first step of including a sensing camera and a rotating means in the liquid crystal display monitor; A second step of identifying a location of a user with the detection camera; A third step of detecting whether the user moves the location after the second step; A fourth step of calculating a rotation angle according to a change in the position movement of the user when there is a position movement of the user after the third step; A fifth step of controlling the rotation means such that the liquid crystal display monitor is rotated by the rotation angle calculated through the fourth step; And And rotating the liquid crystal display monitor such that the position of the user is the center of the screen of the detection camera according to the control of the fifth step. The method of claim 4, wherein The second step is Imaging the user's image with the detection camera; After processing the captured image, identifying the location of the user using the processed image data, and And storing the image data. The method of claim 4, wherein The third step is Comparing the latest image data captured by the sensing camera with previously stored previous image data, and And determining whether the user's latest position matches the previous position through the comparison.

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