KR20000004055A - Apparatus for adjusting a direction of a tv screen of a plasma display panel - Google Patents

Abstract

PURPOSE: A TV screen adjusting apparatus is provided, which simply adjusts any vertical and horizontal directions a TV screen of a plasma display panel to improve an eyesight. CONSTITUTION: A TV screen adjusting apparatus comprises: a vertical rotation angle adjusting unit (11) provided to a rear side of the screen (10) in a housing fixed to the rear side of the screen (10) for adjusting a vertical rotation angle of the screen (10); a horizontal rotation angle adjusting unit (12) provided to the bottom side of the housing in a lower side of the vertical rotation angle adjusting (11); and a driving unit (13) for driving the vertical angle adjusting unit (11). Therefore, users adjusts the screen at any angle to always see a highest picture.

Description

Plasma Display Panel TV Screen Direction Control Device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for adjusting the orientation of a screen portion of a plasma display panel (PDP) TV. In particular, the screen portion of the plasma display panel TV can be easily adjusted in a vertical direction and a horizontal direction according to the position of the viewer. It relates to a screen direction control device to be adjusted to better visibility.

2. Description of the Related Art [0002] A plasma display panel that displays characters or images using light emission of a liquid crystal element by discharge is conventionally used as a next-generation display apparatus for the conventional display apparatus which scans an electron beam with an electron gun to form an image on a screen of a cathode ray tube. It has been developed and reached the stage commonly used as televisions and other image display devices. Since the plasma display panel has a clear image quality and is not an electron beam scanning method, the plasma display panel may be formed to be very thin so that the plasma display panel may be fixed to a wall or used as a stand type, and is much easier to manufacture in a large size. However, as a disadvantage of the present invention, it is a problem to be improved that the visibility is greatly reduced at an inclined position in the plasma display panel.

FIG. 1 schematically shows an example of such a stand-type television 1 of a plasma display panel type, and a thin screen portion 4 is firmly fixed to a support 3 fixed to a base 2. Accordingly, since the viewing screen unit is fixed to the base, when the viewer is positioned in front of the screen unit, that is, the plasma display panel, the viewer can enjoy a clear image of the image. In the case of the present invention, since the visibility is greatly deteriorated, it is very inconvenient and troublesome to change the position of the entire heavy TV screen toward the viewer.

The present invention is to solve the problem of the deterioration of the visibility of the plasma display panel at a position inclined with respect to the screen portion in the conventional plasma display panel TV described above, the upper and lower sides to the viewer in the mounting member for supporting the screen portion An object of the present invention is to provide a plasma display panel TV screen direction control device including a vertical rotation angle control unit and a horizontal rotation angle control unit driven by a motor with respect to the mounting member so as to arbitrarily easily adjust the angle to the room.

1 is a schematic side view showing an example of a stand type of a conventional plasma display panel TV.

Figure 2 is a side view of the housing is removed, showing the plasma display panel TV screen direction control device, in particular the vertical direction control unit according to the present invention.

Figure 3 is a side view of the plasma display panel TV screen portion direction control device according to the present invention, in particular showing the horizontal direction control unit, the housing is removed.

Figure 4 is a schematic exploded perspective view of the plasma display panel TV screen direction control device according to the present invention.

<Description of Symbols for Main Parts of Drawings>

10: screen portion 11: vertical rotation angle adjustment unit

12: horizontal rotation angle adjustment unit 13: drive unit

14, 22: bracket 15, 30: rack

16: support portion 19, 33: drive pinion

20: electric gear 21, 38: drive motor

24: Helical Gear 29: (Vertical) Moving Plate

In order to achieve the above object, the plasma display panel TV screen portion direction adjusting device according to the present invention includes a vertical rotation angle adjusting portion provided on the back side of the screen portion in a housing fixed to the rear surface side of the mounting member fixed to the base; It comprises a horizontal rotation angle adjustment unit provided on the housing bottom from the lower side of the vertical rotation angle adjustment unit and a drive unit which is moved to selectively operate the vertical and horizontal angle adjustment units.

The vertical rotation angle adjustment unit has a bracket fixed to the rear side of the screen portion, and a curved rack portion protruding from the rear surface of the bracket is formed, and the shaft portion is rotatably mounted to the support portions protruding from both sides of the bracket. A drive pinion is provided in which a gear portion meshes with the rack and in which a small diameter gear portion is formed, the drive pinion being configured to be driven by the first drive motor through the electric pinion. In addition, the horizontal rotation angle adjustment unit is helical gear is fixed to the bracket fixed to the housing and is rotatably supported in the support portion fixed to one side and driven by the first drive motor through the electric gear meshed with the helical gear to horizontally housing the housing Configured to rotate. The driving motor is mounted and the support plate on which the driving circuit is formed is fixed to the vertical movable plate, and the vertical movable plate is formed with a guide rib for supporting the driving pinion to which the back gear part having a rack formed on its rear surface is fixed by a fixed rib and engaged with the rack of the back gear part. The drive pinion is driven by a second drive motor to move the vertical movable plate up and down so that the pinion provided on the first drive motor output shaft drives the electric gear of the vertical rotation angle adjustment unit on the upper side, while the horizontal rotation angle adjustment unit on the lower side. It is configured to drive the electric gear to selectively adjust the vertical and horizontal rotation angle of the screen portion.

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

Plasma display panel TV screen direction control device of the present invention is shown in an exploded view in Figure 2 and side views schematically shown in Figures 3 and 4, the vertical angle of rotation of the plasma display panel TV screen portion 10 Vertical rotation angle adjustment unit 11 for adjusting, horizontal rotation angle adjustment unit 12 for adjusting the horizontal rotation angle and the drive unit 13 for selectively driving the vertical rotation angle adjustment unit 11 and the horizontal rotation angle adjustment unit 12 It includes.

The vertical rotation angle adjustment unit 11 has a bracket 14 fixed to the rear surface of the screen portion, protruding from the rear surface of the bracket is formed a curved rack 15, protruding on both sides of the bracket 14 A drive pinion 19 is provided on which the shaft portion is rotatably mounted to the support portion 16 and the large diameter gear portion 17 is engaged with the rack 15 and the small diameter gear portion 18 is formed on the side thereof. It is composed. The drive pinion 19 is configured to be driven by the first drive motor 21 capable of forward and reverse rotation through the electric pinion 20.

In addition, the horizontal rotation angle adjustment unit 12 is fixed to the boss 23 formed in the bracket 22 is fixed to the housing (not shown in the figure) to move integrally, one side of the upper surface of the bracket 22 It is rotatably supported by the support portion 25 fixed to the driven by the first drive motor 21 through the electric gear 27 engaged with the helical gear 24 is configured to rotate horizontally with the housing.

In the driving unit 13 for selectively driving the vertical rotation angle adjusting unit 11 and the horizontal rotation angle adjusting unit 12, the support plate 28 on which the first driving motor 21 is mounted and the driving circuit is formed is a vertical movable plate 29. And a back gear part 31 having a vertical rack 30 formed on a rear surface thereof is fixed to the vertical movable plate 29 by a fixed rib 32 and engaged with the rack 30 of the back gear part 31. Guide ribs 34 are formed to support the driving pinion 33 for driving, and the driving pinion 33 has a large diameter gear portion 35 engaged with the rack 30 and a gear having a relatively small diameter at its side. A part 36 is formed, and the gear part 36 is driven by being engaged with the pinion of the forward / reversely rotatable second drive motor 38 fixed to the support plate 37 to engage with the large diameter gear part 35. The vertical movable plate 29 is configured to move up and down as 30) moves up and down.

When the driving unit 13 is positioned at the upper side, the pinion provided to the output shaft of the first driving motor 21 drives the driving pinion 19 of the vertical rotation angle adjusting unit 11, while being positioned at the lower side, and the horizontal rotation angle adjusting unit The electric gear 27 of (12) is driven to selectively adjust the vertical and horizontal rotation angles of the screen portion.

The operation of the plasma display panel TV screen direction control device according to the above configuration will be described with reference to FIGS. 3 and 4.

3 illustrates a state in which the driving unit 13 drives the vertical rotation angle adjusting unit 11, and the horizontal rotation angle adjusting unit is omitted for the sake of simplicity of the drawing. When the second drive motor 38 of the drive unit 13 rotates counterclockwise, the drive pinion 33 rotates clockwise to move the movable plate 29 to the output shaft of the first drive motor 21. The provided pinion is rotated in engagement with the electric pinion 20 of the vertical rotation angle adjustment unit 11, in this case, when the electric pinion 20 is rotated in the clockwise direction, the driving pinion 19 engaged thereto rotates in a counterclockwise direction. As a result, the rack 15 moves downward so that the screen portion rotates vertically downward. On the contrary, when the electric pinion 20 rotates in the counterclockwise direction, the driving pinion 19 and the rack 15 operate in reverse, so that the screen portion rotates vertically upward.

After the vertical rotation angle of the screen unit is adjusted as described above, when the user operates the remote control to operate the second driving motor 38 in reverse, that is, counterclockwise, the first driving motor 21 together with the movable plate 29 is provided. ) Moves downward so that the pinion of the first drive motor is separated from the electric gear 20 for vertical rotation angle adjustment, and engaged with the electric gear 27 of the horizontal rotation angle adjustment unit 12 as shown in FIG. 4. do. When the pinion of the first drive motor 21 rotates in the clockwise direction, the electric gear 27 rotates in the counterclockwise direction, and the helical gear 24 meshed therewith rotates in the direction of the arrow A so that the helical gear 24 rotates. The bracket 22 is fixed to the housing and the screen is integrally rotated horizontally in the direction of the arrow B, the horizontal rotation angle is adjusted. When the rotational direction of the first driving motor 21 is reversed, the electric gear 27, the helical gear 24, the housing, and the screen unit are operated in the opposite direction to those described above to rotate horizontally by the arrow C.

The operation and rotation direction of the first driving motor 21 and the second driving motor 38 may be operated using a switch or a remote control.

According to the present invention, the user can arbitrarily operate the first and second drive motors to selectively and arbitrarily easily adjust the vertical and horizontal rotation angles of the plasma display panel TV screen so that the screen of the plasma display panel can be viewed from the front. You can always watch the best picture.

Although the preferred embodiment according to the present invention has been described above, it will be understood by those skilled in the art that various modifications and changes can be made without departing from the scope of the utility plan registration claims of the present application.

Claims (5)

A vertical rotation angle adjustment unit 11 provided on the rear side of the screen unit in a housing fixed to the rear side of the screen unit 10 to a mounting member fixed to the base to adjust the vertical rotation angle of the screen unit, and the vertical angle adjustment unit Plasma display panel TV screen portion direction control device including a driving unit 13 for operating. The apparatus of claim 1, further comprising a horizontal rotation angle adjustment unit (12) provided at the bottom of the housing under the vertical rotation angle adjustment unit. According to claim 1, wherein the vertical rotation angle adjustment unit 12 is a bracket 14 fixed to the rear side of the screen portion, the rack 15 protruding from the rear surface of the bracket formed curved, the support portion protruding on both sides of the bracket A shaft portion rotatably mounted at (16) so that a large diameter gear portion (17) meshes with the rack (15) and includes a drive pinion (19) having a small diameter gear portion (18) formed on the side thereof; And a driving pinion (19) configured to be driven by the first driving motor (21) of the driving unit (13) through the electric pinion. The horizontal rotation angle adjusting unit 12 is rotatable in a helical gear 24 fixed to a bracket 22 fixed to a housing bottom and a support 25 fixed to one side thereof. And an electric gear 27 supported and engaged with the helical gear 24 and driven by the first driving motor 21 of the driving unit 13, and the helical gear 24 is rotated by the rotation of the electric gear 27. ) Is horizontally rotated so as to adjust the horizontal rotation angle of the screen portion 10 plasma display panel TV screen direction control device. According to claim 1 or 2, wherein the drive unit 13 is a vertical movable plate 29 to which the first driving motor 21 is mounted and the support plate 28 on which the driving circuit is formed is fixed. 30 is formed by a back gear part 31, a drive pin 33 is fixed by a fixed rib 32, and engaged with the rack 30 of the back gear part 31, the drive pinion 33 to drive the vertical movable plate The pinion provided on the output shaft of the first driving motor 21 drives the electric pinion 20 of the vertical rotation angle adjusting unit 11 at the upper side while the pinion provided on the output shaft of the first driving motor 21 is moved up and down. Plasma display panel TV screen direction control device, characterized in that configured to drive the gear (27).