JPH06282240A - Screen adjusting device for lap-top personal computer - Google Patents

Abstract

PURPOSE:To enable even a person other than a keyboard input-operator to easily watch the description of a liquid crystal display screen by allowing the liquid crystal panel of a lap-top personal computer to be opened and closed maximumly to a specific angle, and providing a screen selector switch for selecting data displayed on the panel in up and down, and right and left directions. CONSTITUTION:A liquid crystal panel 2 is capable of being opened and closed up to approximately 180 degrees for a keyboard 1. As a result, an input operator of the keyboard 1 and other persons can concurrently watch the panel 2. Also, screen description can be displayed in a direction for easy watch by the operator of the keyboard 1, or in a direction for easy watch by a person faced to the operator by operating a selector means to select a direction for indicating the screen description of the panel 2. Also, the screen description may be displayed in a direction for easy watch from the left or right direction of the keyboard 1. According to this construction, a liquid crystal screen 4 can be displayed, so that a plurality of persons can easily watch from each of vertical and horizontal directions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal screen adjusting device for a laptop personal computer, and is suitable for a plurality of people viewing one liquid crystal screen at the same time.

[0002]

2. Description of the Related Art The structure of a conventional laptop personal computer using a liquid crystal screen is shown in FIG. In the figure, 1 is a keyboard,
2 is a liquid crystal panel. As shown in FIG. 10, the opening / closing angle of the liquid crystal panel 2 with respect to the keyboard 1 is not opened up to nearly 180 degrees even when opened to the maximum angle θ. For this reason, when a person other than the person who inputs on the keyboard 1 wants to look at the contents of the liquid crystal screen, he / she has to look in from behind or from the side of the person who inputs the keyboard 1, and among the persons on the liquid crystal screen. It was difficult to see the contents.

FIG. 11 is a block diagram of a conventional liquid crystal screen display device. Display data output from the CPU 11 is recorded in the VRAM 5 via the LCD controller 12 and read out under the control of the LCD controller 12.
It is displayed on the LCD 14 via the driver IC 13. In the figure, 15 is a clock circuit, 16 is a data bus, 17 is an address bus, and 18 is a control signal. In such a display device, since the display direction on the liquid crystal screen is fixed, the display direction on the liquid crystal screen cannot be changed.

[0004]

The opening / closing angle of the liquid crystal panel of the conventional laptop personal computer is not opened up to nearly 180 degrees even when it is opened to the maximum angle. For this reason, when a person other than the person who performs the keyboard input tries to look at the contents of the LCD screen, it is necessary to look into the back or side of the person who inputs the keyboard, which makes it difficult for a plurality of people to see the contents of the LCD screen. there were.

The present invention has been made in view of the above points, and an object thereof is to open an opening / closing angle of a liquid crystal panel of a laptop computer using a liquid crystal screen up to 180 degrees. Further, by providing a screen changeover switch for switching the liquid crystal screen display data between up, down, left and right, a person other than a keyboard input person can easily see the contents of the liquid crystal screen.

[0006]

In order to solve the above-mentioned problems, a screen adjusting device for a laptop personal computer according to the present invention provides a laptop personal computer having a liquid crystal screen as shown in FIGS. As shown, the LCD panel opening / closing mechanism with an opening / closing angle of up to approximately 180 degrees and the LCD screen top / bottom left / right switching that converts the LCD screen display content so that the LCD screen display content can be read from either the up / down / left / right directions. And means.

[0007]

The operation of the present invention will be described below with reference to the drawings. According to the present invention, as shown in FIG. 2, the liquid crystal panel 2 can be opened and closed with respect to the keyboard 1 up to about 180 degrees.
Therefore, a person who inputs data on the keyboard 1 and another person can see the liquid crystal panel 2 at the same time. Also,
By switching the direction in which the screen content of the liquid crystal panel 2 is displayed by the switching means, for example, as shown in FIG. 1A, it is displayed in a direction that is easy for a person who inputs the keyboard 1 to see, or in FIG. 1B. As shown in, the display is made in a direction that is easy to see from a person who faces the person who inputs the keyboard 1. Further, it may be displayed in a direction that is easy to see from the left side or the right side of the keyboard 1. This allows
The liquid crystal screen 4 can be displayed so that a plurality of people can easily see it from the up, down, left, and right directions.

[0008]

1 is a plan view of an embodiment of the present invention. In the figure, 1 is a liquid crystal panel, 2 is a keyboard, 3 is an up / down switch, and 4 is a liquid crystal screen. When the up / down changeover switch 3 is set to the state shown in FIG. 1 (a), it can be used like a normal laptop personal computer. When the up / down changeover switch 3 is set to the state shown in FIG. 1B, the display content on the liquid crystal screen 4 of the liquid crystal panel 1 is vertically inverted. As a result, the display can be performed in a direction that is easy for a person who faces the person who inputs data on the keyboard 1 to see it.

FIG. 3 is a block diagram of a liquid crystal screen display switching device for vertically inverting the display contents on the liquid crystal screen 4. In the figure, VRAM 5 is a memory for storing the conventional graphic data, and VRAM 6 is a memory for storing the graphic data converted by the coordinate conversion unit 7. The coordinate conversion unit 7 has a function of converting conventional graphic screen data as shown in FIGS. That is, the address of the VRAM 5 is (x, y),
When the address of the VRAM 6 is expressed as (X, Y), X =
Coordinate conversion is performed by performing calculations such as n−x and Y = n (t−1) + 1−y. The VRAM switching unit 8 has a function of switching between the VRAM 5 and the VRAM 6 by the screen display up / down switch 3. Other configurations are similar to those of the conventional liquid crystal display device shown in FIG. By using such a liquid crystal screen display switching device, the display contents of the liquid crystal screen can be inverted up and down, so that the liquid crystal screen can be displayed in a direction that is easy for a person facing the person who inputs on the keyboard 1 to see. It is possible.

FIG. 6 is a block diagram of another embodiment of the present invention. This embodiment can be applied to a liquid crystal screen display device having an LCD controller capable of creating characters using a character generator. In the present embodiment, as shown in FIG. 7, in addition to the display data 50, a normal character generator 51 and a reverse screen character generator 52 are provided inside the VRAM 5. Figure 8 shows a conventional VR
The internal structure of AM5 is shown, and conventionally, the display data 5
0 and the character generator 51 are provided, but the reverse screen character generator 52 is not provided. In the present invention, the reverse screen character generator 52 stores characters that are upside down from the conventional character generator 51. Whether the normal character generator 51 is used or the reverse screen characters are used. Switching is performed by the switching input unit 10. The character / character switching unit 9 realizes whether to use a conventional character or a reverse screen character by switching the memory address.

In the description of the embodiment, the case where the display of the liquid crystal screen is inverted upside down is exemplified, but the display in the vertical direction and the horizontal direction are switched to the left adjacent to the person performing the input of the keyboard 1 or It goes without saying that the display may be switched so that the direction is easier to see from the person on the right side.

[0012]

According to the screen adjusting device for a laptop computer of the present invention, a maximum of 1 can be achieved by the liquid crystal panel opening / closing mechanism.
It is possible to open the panel up to 80 degrees, which eliminates the need for anyone other than the keyboard input person to look in from behind or beside the input person when viewing the liquid crystal screen contents among a plurality of persons. Furthermore, by providing liquid crystal screen up / down / left / right switching means for converting the display contents of the liquid crystal screen so that the display contents on the liquid crystal screen can be read from any of the up / down / left / right directions, it is not necessary to view the screen from the opposite direction or sideways. The effect is that you can easily see the screen contents.

[Brief description of drawings]

FIG. 1 is a plan view of a first embodiment of the present invention.

FIG. 2 is a side view of the first embodiment of the present invention.

FIG. 3 is a block diagram showing an internal configuration of a first embodiment of the present invention.

FIG. 4 is an explanatory diagram showing a display system of a graphic liquid crystal screen in the present invention.

FIG. 5 is an explanatory diagram showing a memory content conversion system of a coordinate conversion unit according to the present invention.

FIG. 6 is a block diagram showing an internal configuration of a second embodiment of the present invention.

FIG. 7 is an explanatory diagram showing the configuration of a VRAM used in the second embodiment of the present invention.

FIG. 8 is an explanatory diagram showing a configuration of a VRAM used in a conventional example.

FIG. 9 is a perspective view of a conventional example.

FIG. 10 is a side view of a conventional example.

FIG. 11 is a block diagram showing an internal configuration of a conventional example.

[Explanation of symbols]

 1 Keyboard 2 Liquid crystal panel 3 Vertical switch

Claims (1)

[Claims] 1. A laptop personal computer having a liquid crystal screen, wherein a liquid crystal panel opening / closing mechanism having an opening / closing angle of up to approximately 180 degrees and a liquid crystal screen capable of reading the display content of the liquid crystal screen from any one of up, down, left and right directions. And a liquid crystal screen up / down / right / left switching means for converting the display contents of the above.