JPS61273587A - Screen rotation mechanism for flat panel display - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a display device, and more particularly to a screen rotation mechanism for rotating the screen of a display unit to face one person facing the other person.

[Background of the invention]

Many desktop display devices connected to computers are in use. When a display device is used for customer service at a securities company, Bank A, etc., the display screen of one display device that is directed toward a store clerk or bank employee may also be directed toward the person facing the customer, such as the customer.

FIG. 6 shows a perspective view of a conventional display device with a screen rotation mechanism, in which the display screen is rotated by rotating the display device 17 mounted on the rotating table 16 around a vertical rotation axis. It can also be directed towards the person you are meeting with. However, this mechanism was mainly devised for cathode ray display devices (<CRT display devices), and cable handling becomes a problem. In addition, since the entire display device is rotated around a vertical axis, there is a problem that the rotation space is too narrow and the space factor on a counter or desk is not good.

As a technique related to this field, there is, for example, a technique described in Japanese Utility Model Application Publication No. 56-121361.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a screen rotation mechanism for a display device in which the display screen of a flat panel display can be rotated, and a switch is switched when the display screen is rotated to create the same screen for the person facing the person. There is a particular thing.

[Summary of the invention]

The present invention provides means for rotatably supporting the screen of a display unit about a horizontal axis so as to face the screen from one side to the other, a means for detecting whether or not the display unit is in a fixed rotational position, and storage means in which display data is stored corresponding to the display screen of the display unit; and storage means that stores display data corresponding to the display screen of the display unit; The present invention is characterized by a screen rotation mechanism for a flat panel display having means for reading out display data in a storage means and displaying it on the display screen.

[Embodiment of the Invention] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a liquid crystal display device. Reference numeral 1 is the main body of the control unit, and reference numeral 6 is the keyboard. 5 is a home display unit, which is supported via a pivot shaft 4 by two arms 7 attached to the control unit body 1, and rotates up to 180° around this pivot shaft 4 as shown by the arrow in the figure. It is possible to fix the display unit 5 and the arm 7 at any angle by contact friction. 15 is a power switch, and 11 is an external cable for connecting this display device to a host computer. Note that the base of the arm 7 is connected to the control unit main body 1 via the pivot 2.
When the arm 7 is rotated around the pivot 2 and folded down, the display section 5 overlaps the control section main body 1, making it compact and convenient to carry.

FIG. 2 is a block diagram showing the configuration of this liquid crystal display device. The control section 1 is connected to the combiator 15 via an external cable 11. 20 is the control unit main body 1 and the display unit 5
This is an internal cable that connects the Reference numeral 8 denotes a changeover switch that changes the screen by rotating the display unit 50. Reference numeral 12 denotes a switching logic circuit added for the purpose of the present invention as part of the control unit main body 1, and is connected to a changeover switch via a lead wire 10.

FIG. 5 shows an enlarged view of the connection between the display unit 5 and the arm 7, and the changeover switch 8 is a microactuator embedded in a notch made in the arm 7.
It is connected to the lead wire 10. The protrusions 9 are protrusions provided on both sides of the display section 50, and when they come into contact with the changeover switch 8, the changeover switch 8 is turned on, and when they are separated from the changeover switch 8 by rotating the display section 5, the changeover switch 8 is turned off. Become. Although not shown in the drawings, an internal cable 20 is led from the control section main body 1 to the inside of the arm 7, passes through the inside of the arm 7, passes through the inside of the pivot 4, and is led to the display section 5.

FIG. 4 shows the internal configuration of the control unit main body 1.

This is a diagram. The data control unit 21 connects the external cable 11
Alternatively, it is a part that controls data transfer between the input/output 15 or the display section 5 and the control section main body 1 via the internal cable 20, respectively. The screen memory 18 is a memory that temporarily stores display data sent from the computer 15.

The A point address generating section 19 is a means for sequentially specifying addresses from which display data is read from the screen memory 18 so that the position corresponding to the A point on the display section 5 is the starting point of display, as in the prior art. The B point address generation section 23 is means for sequentially specifying addresses from which display data is read from the screen memory 1B so that the position corresponding to the display section 50B point is the starting point of display. The switch 22 selects either the A point address generation section 19 or the B point address generation section 19.
This is a selector for selecting one of the point address generation sections 25. The changeover device 22 is connected to the changeover switch 8 via the lead wire 10, and when the changeover switch 8 is on, selects the address generated by the point A address generation section 190, and when the changeover switch 8 is off, it selects the address generated by the point B address generation section 23. You can now select the address where this occurs.

FIG. 5 is an example of a memory map showing how display data is stored in the screen memory 18. Here, it is assumed that the display data is stored in the screen memory 18 in the form of a dot pattern, and the screen memory 18 is represented two-dimensionally in accordance with the screen configuration of the display unit 5. In the figure, character parts such as A, B, W, and Y are stored as 11' dots, and other blank spaces are stored as 10' dots. When the switch 22 selects the A point address generator 19,
The dot data corresponding to point A are ■ and ■ in the figure.

...Screen memory 1 is read out in the order of ■, ■.
8 addresses are generated. When the switch 22 selects the B point address generator 23, the dot data corresponding to the B point is read out in the order of ■', ■', . . . ■', h in the figure. The address of the B point address generator 23 is generated.

Next, the operation of this embodiment will be explained. First of all, for the combination.
The display data sent from the beginning 15 is temporarily stored in the first screen memory 18 via the data control section 21.

When the display unit 5 is in a position where the display starts from point A as shown in FIG.
Since the selector switch 8 is turned on, the selector 22 connected to the selector switch 8 selects the A point address generator 19, so the screen memory 1
The display data in 8 is ■,■,... as shown in Figure 5.
are read out in this order and displayed on the display section 5 in sequence.

Next, when the display unit 5 is rotated to face the display screen to the opposite side, the protrusion 9 separates from the changeover switch 8, so the changeover switch 8 is turned off, and the changeover device 22 is switched to the point B address generation unit 2.
3 is selected, and the display data in the screen memory 18 is <m as shown in FIG.

The city, . Note that the off state of the changeover switch 8 is also communicated to the data control section 21, so that the data read out from the screen memory 1B at this time is controlled to be sent to the display section 5 in order starting from the last bit. @ In the above embodiment, the display unit 5 is connected to two arms 7.
However, instead of the arm 70, an integral frame surrounding the side surface of the display section 5 may be used. Further, in the above embodiment, the orientation of the display section 5 was detected by the combination of the protrusion 9 and the changeover switch 8, but instead of this, a light emitter is provided on one side of the display section 5 and the arm 7, and a light receiver is provided on the other. The position of the display section 5 may be detected depending on whether the light receiver detects light or not.

〔Effect of the invention〕

According to the present invention, there are the following effects.

(1) Since the rotation space of the display device is small, the space factor on a counter or desk is good.

(2) The rotation mechanism of the display unit is simplified and simplified. It also solves the cable handling problem.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a display device according to an embodiment of the present invention, FIG. 2 is a block diagram showing the configuration of the display device according to the embodiment, and FIG.
The figure is an exploded perspective view showing the connecting part between the display section 5 and the arm 7, FIG. 4 is a block diagram showing the internal configuration of the control section main body, and FIG. 5 is the image 5... display section, 7... arm ,
8... Selector switch, 9... Protrusion, 18...
Screen memory, 19...A point address generation section, 23
...B point address generation section. ＼、Second generation private patent attorney Katsuo Ogawa 4th branch 2I 5th country■''li

Claims (1)

[Claims] means for rotatably supporting a screen of a display unit about a horizontal axis so as to face from one side to the other; means for detecting whether the display unit is in a fixed rotational position; and a display screen of the display unit. storage means for storing display data corresponding to;
means for reading the display data from the storage means and displaying it on the display screen so that one corner or the opposite corner of the display screen becomes a display starting point according to a detection result of the position of the display unit; A screen rotation mechanism for a flat panel display, characterized in that it has.