JPH0654079U - Display device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lightweight and compact portable display device. An external storage medium of a disk comprising a ROM of an optical reading system and a RAM of a magnetic writing and reading system, a recording / reproducing device, and a flat type display for converting and displaying the information into characters, numbers, symbols, drawings and the like. A display device having a device, wherein the flat display device is provided on both inner sides of both a main body and a lid that are folded in half, and a photoelectric conversion device made of a non-single-crystal semiconductor is provided outside the lid. Display device.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a portable display device, and particularly to a thin portable book, and in particular, by displaying externally recorded information on a display unit such as a liquid crystal display device, it is possible to display information contents of different books and the like. It has the characteristics of

[0002]

[Prior art]

 Conventional books are formed by printing letters, numbers, symbols, drawings, tables, etc. on the surface of the paper, and are sold to users. It was to read the symbols and understand the contents of the book. And there has been no attempt at an electronic book corresponding to such a book.

[0003]

[Problems of conventional technology]

 However, since this conventional book is made up of paper and one book is made up of a minimum of several tens of pages and usually several hundreds of pages, the weight of one book is considerably heavy. In a so-called literary novel or specialized book, the weight of each book exceeded 1 kg. Therefore, when books are delivered to bookstores for sale, they are usually shipped by truck due to their weight and size of several tons, and because of the high delivery costs, the cost per book is large. The cost was high.

In addition, the size of the paper surface on which letters, numbers, symbols, etc. are printed is not uniform depending on the content, type, price, etc. of the book, and there is the problem that a considerable amount of floor space is required for mass storage. .

In addition, it has been a serious influence on the body that elementary and junior high school students, who are in the process of growing their bodies, put a large number of heavy textbooks and other books in their bags for daily school lessons and go to school.

[0006]

[Means for Solving the Problems] The present invention solves various problems described above, and relates to a lightweight and compact display device, and particularly preferably to a portable display device.

The present invention relates to an external recording medium such as a CD-ROM (read-only memory having a compact disc type) which records information obtained by code conversion of character signals such as letters, numbers, symbols and drawings, and A recording / reproducing device for reproducing information on a medium, a flat-panel display unit, an input key for information processing for designating a page to be read from the outside, a memory for arbitrary processing, and a micro computer. And a display device having In order to further improve the function, an external input terminal for processing information or another second recording / reproducing storage / reproducing device may be provided. Then, the data recorded on the external recording medium is reproduced by the reproducing device, and the characters, numbers, symbols, drawings, tables, etc. for the screen are displayed on the flat display device by the microcomputer. By reading the display screen, the user can grasp the contents of the external recording medium.

[0008]

[Action]

 The present invention uses a recording medium such as a magnetic floppy disk in which characters, numbers, symbols, etc. of the contents of a book or the like are converted into a code signal, an optical disk or a composite disk in which a magnetic memory and an optical memory are integrated. .

The present invention has a display unit that uses the information of the recording medium as visual detection information. This display part is provided on both inner sides of both the main body and the lid, and information can be displayed so that the user can visually recognize it. As for the amount of data to be reproduced, only one display screen may be reproduced once, but it is also possible to perform data reproduction for both screens at once. Alternatively, the display on one display unit may be fixed, and the other display unit may be configured by a touch pen or a light pen into a form required by the reader and corrected. Therefore, it has a function to store the instruction information from the external input terminal in the IC memory in the display device so that the user can display the required screen by the external key operation when necessary.

A display device having one of these functions, that is, a reproduction device is provided, and a plurality of data files are provided. It has the characteristic that it becomes the same as owning the information of. In addition, a typical external recording medium such as a CD-ROM weighs about 10 to 30 g per piece, and is characterized in that it does not require special equipment even if a large amount of storage and transportation is performed.

Further, when the reproducing system of the reproducing apparatus is unified and the standard is unified so that any reproducing apparatus can reproduce, a desk integrated with the reproducing apparatus is installed in an educational site such as a school. If one is prepared for each student, the student does not have to go to school with many heavy books, but can go to school with several data files of 10 to 30g each.

The display unit of the present invention is preferably a flat display that is as bulky as possible. This is because the conventional CRT (cathode tube) type of display, if the user looks at the screen for a long time, causes an eye fatigue and a health hazard. Therefore, a liquid crystal display is particularly preferable. The LCD display is characterized by less eye fatigue, thinner, lighter weight, and lower power consumption than the CRT method, and the display of this method is in good agreement with the purpose of the present invention. is there. Hereinafter, the present invention will be described in detail with reference to examples.

[0013]

【Example】

 Example 1 FIG. 1 shows an example of the display device of the present invention. FIG. 1 (A) shows a front view of the display device folded in two, and FIG. 1 (B) shows a front view of the display device folded in two. In both figures, the display device body (10) comprises a body (1) and a lid (1 '). Each is a display unit (2), (2 '), an external input key (3), a photoelectric conversion device (5) for auxiliary power attached to the lid (1'), and an external storage medium reproducing device ( 4), external power supply input terminal (13), and external input / output terminals (14), (15).

In the case of this embodiment, liquid crystal display devices are used as the display units (2) and (2 ′), and data is recorded by the optical disk as the recording medium of the data file, that is, the difference of the reflectance of the irradiation light. The CD ROM method is adopted. The photoelectric conversion device (5) employs an amorphous silicon photoelectric conversion device with a size of 20 mm × 300 mm, and supplies the electric power generated by this photoelectric conversion device (5) to the charging / discharging device (16). In addition, the display device (10) is driven by charging the insufficient power from the external power supply (6).

Further, the function shown in FIG. 2 is incorporated in the display device (10). This internal function is centered on the microcomputer (20), and transfers (stores) externally recorded information to a temporary memory (17) as necessary, and from this, an arbitrary command specified by the external input key (3) is performed. The information of the place is randomly displayed on the display units (2) and (2 '). On this display device (10), the information for the screen is reproduced by operating the external input key (3) and displayed on the display units (2) and (2 '), and the information is read by the user reading the display. The display function of was added. At this time, the display units (2) and (2 ') are vertically displayed, for example, displaying 30 characters x 50 lines. The display corresponding to a certain page is displayed on the display part (2 ') of the lid, and the display corresponding to the next page is displayed on the display part (2). Also, the contents of each display are compared. To do this, use the input key (3) to display the next screen and read it. In this way, this proposal was completed.

Example 2 The display device used in this example is the same as that in Example 1, but the display method is slightly different. That is, by operating the external input key (3), recording and reproducing from the data file are simultaneously performed on the display sections (2) and (2 ') for a plurality of screens. Then, it is stored in the memory (17) in the main body (10) and the user's desired screen is immediately displayed on the display unit (2) or (2 ') by operating the external input key (3). Can be displayed.

Further, on one display unit, other information from the external input terminal is detected by a touch pen using local pressure or a light pen using local light input. Therefore, the display unit (2) or (2 ′) has photosensors arranged corresponding to the pixels in the matrix arrangement. Then, it is possible to rewrite a part or all of the drawing or character displayed on the liquid crystal display, or to draw an underline below the character. This additional information is stored in the memory (17) through the microcomputer.

As a result, in the display device of the present invention, not only the information can be read, but also the information can be processed. The display unit (2) processes the information, and the processed information is displayed on the display unit (2 ′). It is now possible to display. With this method, even screens or pages that are not adjacent to each other can be read simultaneously on the display unit, and in addition to the normal reading of books, it has become possible to read out information after processing.

Third Embodiment This embodiment relates to another storage / playback function shown in FIGS. 2 and 3.

In FIG. 2, it has a first external storage medium 1 (11) and a second storage medium 2 (11 '). Corresponding to each other, one has a reproducing device (12) and the other has a recording and reproducing device (12 ').

As shown schematically in FIG. 3, each disk is provided with ROM and RAM as an integrated composite disk (30). That is, the first external storage medium (11) consisting of a compact disc (ROM or read-only), the magnetic storage medium (11 ') which is a second external recording medium provided in a part thereof (for both writing and reading) ) Has. Therefore, one reproducing device (12) is a reflection type ROM (read only memory) reproducing device including an optical system (13) and a light emitting / receiving system (14). The other is a RAM (writing and reading method, that is, random access memory) type storage and reproduction device (12 ') including a magnetic head (16) and its drive system (16). For this purpose, the drawing shows one magnetic head, but it is also possible to have two magnetic heads, one for erasing and the other for recording or reproducing. However, the RAM capacity is smaller than the optical type.

The magnetic recording portion may be provided in the central portion or the outer peripheral portion on the recording surface (11) side of the compact disc, or may be provided in the central portion or the entire surface on the back surface side (the upper surface side in the drawing).

In this way, the process of processing and editing the information performed in the second embodiment and the obtained result are stored in the memory (FIG. 2 (17)), and the resulting information is recorded / reproduced by the recording / reproducing device (12 '). ), It is transferred to a magnetic external storage medium (11 '), and it is possible to permanently store the information (11) on the compact disc in a 1: 1 correspondence. For this reason, ROM information is mainly used, and some information can be corrected or corrected, making it possible to use the ROM memory effectively for a long period of time.

[0024]

[Effect of device]

 As described above, the present invention has made it possible to realize a display device that is portable, lightweight, and has a compact recording function. In addition, since the recorded data file is lightweight and compact, it is possible to store and transport large amounts of information. Furthermore, by having multiple data files for one playback device, the same effect as having many books can be obtained.

Further, since the display device of the present invention has two screens, it is possible to read one display portion while reading the other display portion like a double-opening type book. In addition, it is possible to compare the contents of the two displays by displaying them independently. It is also possible to display, on one side of the display unit, a standard display, while the other display unit processes, corrects, and edits display information.

Also, as shown in the present invention, when a liquid crystal display device in which sensors are arranged in a matrix corresponding to each pixel of the display unit is used, a user may touch a pen or a light on an important part of the display screen. By instructing with a pen etc., the important part can be stored in the user memory area, or the display of that part can be highlighted, for example, an underline or reverse character, and a red line can be drawn on the paper such as a textbook. , It is possible to have the same function as drawing an underline with a fluorescent pen.

Therefore, there is a feature that elementary and junior high school students do not have to carry many heavy books to school, and only need to carry a plurality of lightweight compact data files. Furthermore, by incorporating an auxiliary power source such as a solar cell, it is possible to carry books for reading for a long time.

In the present invention, the external input / output terminals of FIG. 1 may be used to listen to the recorded information in the CD ROM, to read the text on the display section, and to listen to the voice or music while looking at the screen.

[Brief description of drawings]

FIG. 1 shows a schematic view of the device of the present invention.

FIG. 2 shows an outline of the system of the device of the present invention.

FIG. 3 shows an outline of a functional part of the present invention.

[Explanation of symbols]

 1 Main body 1'Lid 2,2 'Display unit 3 External input key 4 External recording medium insertion unit 6 Photoelectric conversion device 7 External recording / reproducing unit 10 Display device

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[Procedure amendment]

[Submission date] January 22, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (2)

[Scope of utility model registration request] 1. An external storage medium of a disk comprising a ROM of an optical reading system and a RAM of a magnetic writing and reading system, a recording / reproducing device, and the information including characters, numbers, symbols,
A display device having a flat display device for converting into a drawing or the like for display, wherein the flat display device is provided on both inner sides of both a main body and a lid, which are folded in half, and a non-single unit is provided on the outside of the lid. A display device provided with a photoelectric conversion device made of a crystalline semiconductor. 2. An external storage medium of a disk comprising a ROM of an optical reading system and a RAM of a magnetic writing and reading system, a recording / reproducing device, and the information including characters, numbers, symbols,
What is claimed is: 1. A display device having a flat liquid crystal display device having a matrix configuration for converting to a drawing and displaying the flat display device, wherein the flat display device is provided on both inner surfaces of a main body and a lid that are folded in half. Characteristic display device.