JP2007212594A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a display device in which a display screen can be finely adjusted to a state finely deviated from a front state viewed from a user with an easy operation and then convenience is improved. <P>SOLUTION: Each time a swivel key that a remote controller 4 has is depressed, a housing 2 takes following each attitude in the order: a first attitude wherein each reception sections 6a and 6b has no deviation in reception timing of an infrared signal from the remote controller; a second attitude wherein the housing 2 rotates around a vertical axis from the fist attitude by a predetermined angle in one direction; and a third attitude wherein the housing 2 rotates around the vertical axis by the predetermined angle in a direction opposite to the one direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device.

  Recently, a display device such as a television has been developed that can rotate a display screen by a remote control operation and adjust the display screen in a direction desired by a user.

  As a related to such a display device, Non-Patent Document 1 discloses a turntable on which the following television set or the like is placed. In this turntable, a plurality of infrared light receiving sensors are provided on the front surface of a rotating movable stand. When the user presses one key on the remote control, infrared light is emitted from the remote control and the infrared light receiving sensor receives the infrared light. There is a difference in the detection signal level of the infrared light received at. Then, the movable table is turned toward the remote control operator by rotating the movable table with a motor until this level difference disappears.

As a result, the user can turn the display screen of a television or the like placed on the turntable toward himself / herself by an operation with one key of the remote controller.
Japanese Utility Model Publication No. 7-29968

  Here, there are cases where the user wants to adjust the display screen by slightly shifting the display screen from the front, not the front, by reflecting light on the display screen. However, in the above-described conventional technology, once the display screen comes to the front position, it is troublesome because the user needs to change the position of the remote control to operate the remote control to finely adjust the display screen.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a display device that can finely adjust the display screen to a state slightly deviated from the front state toward the user with a simple operation, thereby improving convenience.

In order to achieve the above object, a display device of the present invention is a display device including a rotatable housing having a display screen and two receiving means,
The posture of the housing in which the receiving means receives no radio signal from the remote control device does not cause a shift in the first posture,
The posture of the housing rotated by a predetermined angle in one direction from the first posture is a second posture,
When the posture of the casing rotated by a predetermined angle in the opposite direction of the one direction from the first posture is a third posture,
Each time the receiving means receives from the remote control device a radio signal indicating that one predetermined operating means of the remote control device has been operated, the first posture is changed to the second posture. The posture of the housing changes sequentially from the second posture to the first posture, from the first posture to the third posture, and from the third posture to the first posture. Control means for rotating the housing is provided.

  According to such a configuration, the user slightly deviates the direction of the display screen from the state facing the front toward himself only by an operation by one operation means of the remote control device without changing the position of the remote control device. The state can be finely adjusted, and convenience is improved.

  According to the display device of the present invention, the display screen can be finely adjusted to a state slightly deviated from the frontal state toward the user with a simple operation, and convenience is improved.

  Embodiments of the present invention will be described below with reference to the drawings, taking a television as an example. FIG. 1 shows a schematic front view of a television according to the present invention.

  The television 1 includes a housing 2, a housing 3, a display screen 5, a receiving unit 6a, and a receiving unit 6b. The display screen 5 and the receiving units 6 a and 6 b are provided on the front surface of the housing 2, and the receiving units 6 a and 6 b are arranged on the left and right sides with the display screen 5 interposed therebetween. Here, FIG. 2 is a schematic view of the television 1 as viewed from above. As described above, the casing 2 can rotate around the vertical axis with respect to the casing 3, and a display screen provided on the casing 2. 5 and the receiving units 6 a and 6 b also rotate with the housing 2. The housing 2 is rotated by an operation of the remote controller 4 as will be described later. Such a rotation function is generally called a swivel function.

  FIG. 3 is a block diagram showing the configurations of the television 1 and the remote controller 4. However, the parts related to the present invention are shown.

  The television 1 includes a reception unit 6a, a reception unit 6b, a control unit 7, a drive unit 8, a motor 9, and a storage unit 10. The motor 9 is provided inside the housing 3 (FIG. 1), and rotates the housing 2 through a gear that is also provided inside the housing 3.

  In addition, the remote controller 4 includes an operation unit 11, a control unit 12, and a transmission unit 13.

  Hereinafter, the characteristic operation of the present invention of the television 1 by the operation of the remote controller 4 will be described with reference to the flowchart shown in FIG.

  The operation unit 11 of the remote controller 4 has a plurality of keys, and when one of them is pressed down by the user, an operation signal is sent from the operation unit 11 to the control unit 12, and the control unit 12 outputs a code corresponding to the pressed key. The signal is sent to the transmission unit 13. The transmitter 13 modulates the received code signal and transmits an infrared signal toward the television 1. The operation unit 11 includes a swivel key, a channel switching key, a volume setting key, and the like. The swivel key may be other operating means such as a lever.

  The infrared signal is received by each of the receiving units 6 a and 6 b of the television 1, demodulated, and sent to the control unit 7. Depending on the positional relationship between each receiving unit 6a, 6b and the transmitting unit 13 of the remote controller 4, the receiving timing of the infrared signal is shifted in each receiving unit 6a, 6b, and the timing at which the control unit 7 receives the demodulated code signal is also shifted. Therefore, in step S1 in FIG. 4, the control unit 7 detects which of the reception unit 6a and the reception unit 6b has received the code signal first, or whether there has been a shift in the reception timing.

  In step S2, the control unit 7 determines whether or not the received code signal corresponds to the swivel key. If the code signal corresponds to a channel switching key, a volume setting key, or the like (N in step S2), the process proceeds to step S8, a control operation corresponding to the code signal is performed, and the step ends. If the code signal corresponds to the swivel key (Y in Step 2), the process proceeds to Step S3.

  Then, when there is no deviation in the reception timing of the code signal (N in Step S3) based on the detection result in Step S1, the control unit 7 proceeds to Step S7 described later, and there is a deviation in the reception timing ( In step S3 Y), the process proceeds to step S4.

  In step S4, the control unit 7 determines in which direction the casing 2 is rotated. If it is detected in step S1 that the code signal has been received first from the receiving unit 6a, the control unit 7 determines to rotate the housing 2 in such a direction that the receiving unit 6b moves forward. . If it is detected in step S1 that the code signal has been received first from the receiving unit 6b, the control unit 7 determines to rotate the housing 2 in a direction in which the receiving unit 6a moves forward. To do. After step S4, the process proceeds to step S5.

  In step S5, the control unit 7 reads the rotation direction information stored in the storage unit 10 and compares it with the rotation direction of the housing 2 determined in step S4. In the initial state, the storage unit 10 stores information on any rotation direction. If the two rotation directions match (Y in Step S5), the process proceeds to Step S7 described later, and if they do not coincide (N in Step S5), the process proceeds to Step S6.

  In step S6, the control unit 7 rewrites the rotation direction information stored in the storage unit 10 to the rotation direction determined in step S4. Then, it progresses to step S7.

  In step S <b> 7, the control unit 7 drives the motor 9 using the drive unit 8 so as to rotate the housing 2 by a predetermined angle in the rotation direction represented by the rotation direction information stored in the storage unit 10. The predetermined angle at this time may be a fixed value or a value set by the user using the remote controller 4 or the operation unit of the television 1.

  This is the end of the step.

  Here, for example, as shown in FIG. 5A, the position on the left side of the front of the display screen 5 in a state where the housing 2 is tilted so that the receiving unit 6a is positioned behind the receiving unit 6b. Assume that the user presses the swivel key of the remote controller 4. Hereinafter, it is assumed that the position of the remote controller does not change. Then, since the distance from the transmission unit 13 to the reception unit 6b of the remote controller 4 is shorter than the distance from the transmission unit 13 to the reception unit 6a, the reception unit 6b first receives the infrared signal and is controlled in step S1 in FIG. The unit 7 detects that the code signal has been received first from the receiving unit 6b.

  Since it is Y in steps S2 and S3, the process proceeds to step S4. Here, since it is detected in step S1 that the code signal has been received first from the receiving unit 6b, the control unit 7 determines to rotate the housing 2 in such a direction that the receiving unit 6a moves forward. . That is, the direction is determined in the counterclockwise direction in FIG. 5 when the television 1 is viewed from above. Hereinafter, it will be described whether the rotation direction is clockwise or counterclockwise.

  Next, the process proceeds to step S5. If rotational direction information representing counterclockwise rotation is stored in the storage unit 10 here, the process proceeds to step S7 because Y in step S5. If the rotation direction information representing clockwise rotation is stored in the storage unit 10, the result of step S5 is N. Therefore, the process proceeds to step S6, and the rotation direction information in the storage unit 10 is rewritten counterclockwise. move on.

  In step S7, the control unit 7 uses the drive unit 8 to rotate the motor 9 by a predetermined angle in the rotation direction represented by the rotation direction information stored in the storage unit 10, that is, counterclockwise. Drive. As a result, the housing 2 rotates counterclockwise by a predetermined angle.

  Thereafter, each time the swivel key of the remote controller 4 is pressed, processing is performed in the order of steps S1, S2, S3, S4, S5, and S7 in FIG. 4, and the casing 2 rotates counterclockwise by a predetermined angle. To go.

  Then, as shown by the solid line portion in FIG. 5B, the remote controller 4 is positioned in front of the display screen 5, and the distance from the transmitter 13 to the receivers 6a and 6b of the remote controller 4 is equal. Is taken by the housing 2. Here, when the swivel key of the remote controller 4 is pressed, there is no deviation in the timing of receiving the infrared signal by the receiving units 6a and 6b. Therefore, in step S1 in FIG. 4, the control unit 7 sets the receiving units 6a and 6b. It is detected that there is no deviation in the reception timing of the code signal from.

  Then, after step S2, the process proceeds to step S3. Here, since it is N, the process proceeds to step S7. Here, since the storage unit 10 stores counterclockwise rotation information as the rotation direction information, the control unit 7 drives the motor 9 using the drive unit 8 so as to rotate the housing 2 counterclockwise by a predetermined angle. To do. With this, the posture of rotating counterclockwise by a predetermined angle from the posture of the housing 2 (the solid line portion in FIG. 5 (b)) that does not cause a deviation in the timing of receiving the infrared signal at each receiving unit 6a, 6b ( The housing | casing 2 will take the dashed-dotted line part of FIG.5 (b).

  Further, when the swivel key of the remote controller 4 is pressed here, the distance from the transmission unit 13 to the reception unit 6a of the remote control 4 is shorter than the distance from the transmission unit 13 to the reception unit 6b. In step S1 of FIG. 4, the control unit 7 detects that the code signal has been received first from the reception unit 6a.

  Since it is Y in steps S2 and S3, the process proceeds to step S4. Here, since it is detected in step S1 that the code signal has been received first from the receiving unit 6a, the control unit 7 rotates the casing 2 in a direction in which the receiving unit 6b moves forward, that is, clockwise. Decide that.

  Next, the process proceeds to step S5. Here, since the rotation direction information indicating the counterclockwise direction is stored in the storage unit 10 and does not coincide with the clockwise direction determined in the previous step S4, since it is N in step S5, the process proceeds to step S6 and stored. The rotation direction information of the unit 10 is rewritten clockwise, and the process proceeds to step S7.

  In step S7, the control unit 7 uses the drive unit 8 to rotate the motor 9 so as to rotate the casing 2 by a predetermined angle in the rotation direction indicated by the rotation direction information stored in the storage unit 10, that is, clockwise. To drive. As a result, the housing 2 again takes the posture (the solid line portion in FIG. 5B) that does not cause a deviation in the timing of receiving the infrared signal by the receiving units 6a and 6b.

  Here, when the swivel key of the remote controller 4 is further pressed, there is no deviation in the timing of receiving the infrared signals by the receiving units 6a and 6b. Therefore, in step S1 in FIG. It is detected that there is no deviation in the reception timing of the code signal from 6b.

  Then, after step S2, the process proceeds to step S3. Here, since it is N, the process proceeds to step S7. Here, since the clockwise direction is stored as the rotation direction information in the storage unit 10, the control unit 7 drives the motor 9 using the driving unit 8 so as to rotate the casing 2 by a predetermined angle clockwise. With this, the posture of rotating clockwise by a predetermined angle from the posture of the housing 2 (the solid line portion in FIG. 5B) that does not cause a deviation in the timing of receiving the infrared signals by the receiving units 6a and 6b (see FIG. 5). The housing 2 takes the two-dot chain line portion 5 (b).

  Further, when the swivel key of the remote controller 4 is pressed here, the distance from the transmission unit 13 to the reception unit 6b of the remote control 4 is shorter than the distance from the transmission unit 13 to the reception unit 6a. In step S1 of FIG. 4, the control unit 7 detects that the code signal has been received first from the reception unit 6b.

  Since it is Y in steps S2 and S3, the process proceeds to step S4. Here, since it is detected in step S1 that the code signal has been received first from the receiving unit 6b, the control unit 7 moves the housing 2 in the direction in which the receiving unit 6a advances, that is, counterclockwise. Decide to rotate.

  Next, the process proceeds to step S5. Here, since the rotation direction information indicating clockwise rotation is stored in the storage unit 10 and does not coincide with the counterclockwise rotation determined in the previous step S4, since it is N in step S5, the process proceeds to step S6 and stored. The rotation direction information of the unit 10 is rewritten counterclockwise, and the process proceeds to step S7.

  In step S7, the control unit 7 uses the drive unit 8 to rotate the motor 9 by a predetermined angle in the rotation direction represented by the rotation direction information stored in the storage unit 10, that is, counterclockwise. Drive. As a result, the housing 2 again takes the posture (the solid line portion in FIG. 5B) that does not cause a deviation in the timing of receiving the infrared signal by the receiving units 6a and 6b.

  As described above, every time the swivel key of the remote controller 4 is pressed, the processing is performed in the above-described steps, and the posture of the housing 2 that does not cause a deviation in the timing of receiving the infrared signal in each of the receiving units 6a and 6b. Is the first posture (solid line portion in FIG. 5B), and the posture of the casing 2 rotated by a predetermined angle counterclockwise from the first posture is the second posture (the dashed line in FIG. 5B). Portion), assuming that the posture of the casing 2 rotated clockwise by a predetermined angle from the first posture is the third posture (the two-dot chain line portion in FIG. 5B), the first posture → the second The housing 2 sequentially changes its posture in the following order: first posture → first posture → third posture → first posture →.

  As a result, the user can finely adjust the direction of the display screen to a slightly deviated state from the front facing toward him / her by just operating with one key called the swivel key without changing the position of the remote control. This improves convenience.

  Although the above embodiment is about the swivel function, the present invention can also be applied to a so-called tilt function. The receiving unit 6a and the receiving unit 6b are arranged vertically so as to sandwich the display screen 5, and the housing The rotation around the left and right axes may be controlled.

  Further, the present invention is not limited to a television but can be applied to other display devices such as a PC monitor.

These are the typical front views of the television which concerns on this invention. These are the schematic diagrams which looked at rotation of the housing | casing of the television which concerns on this invention from the top. These are block diagrams which show the structure of the television and remote control which concern on this invention. These are flowcharts showing the operation of the television according to the present invention. These are typical top views which show the example of rotation operation | movement of the housing | casing of the television which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Television 2 Case 3 Case 4 Remote control 5 Display screen 6a, 6b Reception part 7 Control part 8 Drive part 9 Motor 10 Storage part 11 Operation part 12 Control part 13 Transmission part

Claims (1)

A display device comprising a rotatable housing having a display screen and two receiving means,
The posture of the housing in which the receiving means receives no radio signal from the remote control device does not cause a shift in the first posture,
The posture of the housing rotated by a predetermined angle in one direction from the first posture is a second posture,
When the posture of the casing rotated by a predetermined angle in the opposite direction of the one direction from the first posture is a third posture,
Each time the receiving means receives from the remote control device a radio signal indicating that one predetermined operating means of the remote control device has been operated, the first posture is changed to the second posture. The posture of the housing changes sequentially from the second posture to the first posture, from the first posture to the third posture, and from the third posture to the first posture. A display device comprising control means for rotating a housing.