JP2006344237A - Display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To read character information of a book, a magazine, a newspaper or the like by displaying the character information on the screen of a compact device in an optional narrow space, selecting the character information by a simple operation and displaying the character information in a page unit on the screen about a display device which displays titles of a plurality of pieces of information on a display part and can exchange information data to be displayed on the display part to information data on a different page in accordance with a forward operation of a display page in an operating part. <P>SOLUTION: The display device is provided with a control part which can display information data of the page finally designated by a fast forward operation on the display part without displaying information data on pages during the fast forward operation ahead of the finally designated page when a forward operation is a fast forward operation. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device.

  In general, printed materials on paper are widely used as an information transmission medium, the number of magazines and books that are available in bookstores is increasing, and cost and time are required for publishing and delivering a small number of books and various kinds of books. In addition, there are calls for protection of the environment and resources around the world, and there are moves such as restrictions on logging of timber to protect forests and restraining export of timber. There is a possibility that the distribution of information may be restricted, and maintaining information in the form of a book has a problem of storage space by a book purchaser as well as a publication cost and a distribution cost for the publisher.

  In addition to print media, images such as television and radio, and audio are used as broadcast media, but these can provide real-time information, but they are temporary and remain as records. Requires a recording device and a recording device.

  From these points, it is desired that each individual can read various information (information provided by books, magazines, newspapers, various databases, etc.) at any time without using paper.

  In recent years, the paperless era is approaching by adopting a method of processing, holding and outputting information in the form of data using a computer as a print media that does not use paper. In the case of print media, sentences and data recorded on printed materials are stored in a database, and are being written, edited, and distributed in electronic form.

  Notebooks and memos that were handwritten media are written on word processors and electronic memos, and letters are being transmitted by electronic mail, telephone, and fax. Under such circumstances, electronic publishing of newspapers, magazines, and books in the publishing industry (which sells by inputting the contents of printed matter to a storage medium such as an optical disk) is expected to overturn the form of distribution.

  On the other hand, there are methods for obtaining information such as television, radio, etc. through the eyes or ears as a method of obtaining information, but these are excellent in real time, but are temporary and are to be stored. It is necessary to record on a device such as a corresponding VTR or tape recorder. In this regard, in the case of print media, there is an advantage that the information content is stored as it is, and that information can be retrieved when desired.

  If a so-called electronic publishing world is built by taking advantage of the features of both, it is possible to obtain the information you want instantly and save it in an electronic storage medium if you want to keep the contents. At present, online database services provide business information such as markets, product information, finance, securities, exchange rates, and corporate finance, as well as information on social sciences and humanities such as newspapers, magazines, news, law, and education. It can be obtained in exchange for a usage fee using a communication line such as a telephone line. However, when the information is received in the form of data regardless of voice, it is often obtained and displayed by a specific terminal connected to the line. For this reason, the user cannot view information at an arbitrary place and at an arbitrary time.

  As a method to cope with this, devices such as information sales devices are provided everywhere, and information is written on each individual terminal or recording medium by paying a fee, and each individual carries the recording medium. You can think of a way to watch it when you like. It is technically possible to realize such an information selling apparatus, and a method of selling a storage medium on which information is recorded at the same store as a newspaper or the like is also conceivable.

  In addition, books such as conventional magazines and books (books using characters of all genres) are stored as data in electronic storage media rather than in book form, and sold by devices that are carried by individuals. You can watch it whenever you want.

  A portable input / output device such as a conventional electronic notebook can refer to a card (ROM) such as a predetermined dictionary or display the contents of a storage card that stores keyed information. There is no function for performing display control such as easily manipulating a document including a large number of pages stored in a storage medium and displaying information at an arbitrary position in a desired form.

  Conventionally, however, there is a display device that can carry out control such as selecting information on a required page by wearing a recording medium on which various kinds of information are recorded and carrying it by an individual to view it at an arbitrary place. Did not exist.

  A conventional portable device such as an electronic notebook can refer to a predetermined card (ROM) such as a dictionary or display the contents of a storage card for storing keyed information. There is no function for performing display control such as easily manipulating a document including a large number of pages stored in the screen and displaying information of an arbitrary location in a desired form.

  The present invention is a display device capable of displaying character information such as books, magazines, newspapers, etc. on a small display screen in an arbitrary narrow space, selecting them by a simple operation, displaying them on a page basis, and sequentially reading them by switching pages. The purpose is to provide.

  FIG. 1 is a principle configuration diagram of the present invention.

  In FIG. 1, 1 is a processing unit of a portable information display device, 2 is a display unit such as a liquid crystal display for displaying a large number of characters and pictures, and 3 is information (including pictures) such as magazines and books (paperback books) in advance. A stored memory card such as an IC card, 4 is an operation key including at least two keys, 5 is a power switch, and 6 is a reset key.

  In the processing unit 1, 10 is a power input processing unit that performs processing corresponding to power input, and 11 is an initial setting process that displays an initial screen and performs processing such as selection of display character size and selection of a plurality of sentences. Section 12 is a page management processing section for selecting one of a plurality of items of information stored in the memory card, or a process for taking out and displaying a previously read page. A screen control processing unit that performs display control of the corresponding screen by switching the screen displayed by the instruction in units of pages according to the operation of the operation key, 14 is an end processing unit that performs processing for ending the display, 15 Is a forced reset unit, 16 is a battery voltage confirmation processing unit, and 17 is an auto power-off processing unit.

  The display device of the present invention displays an initial screen on the screen of the display unit when an IC memory card in which information such as a book is written is attached to the device, and manipulates information (text) to be viewed from display conditions and a plurality of information. When the key is used for selection, the sentence is displayed on the screen of the display unit under the designated display conditions, and each page is sequentially displayed by operating the key. In addition, when reading is finished on a page in the middle of a sentence, the page is saved and the same page is called again later.

  When the memory card 3 is inserted into the main body of the apparatus and mounted in the memory card mounting section (see FIG. 2 described later) and the power switch 5 is turned on, the power input processing section 10 in the processing section 1 is activated to The initial setting processing unit 11 is activated if the memory card 3 is installed and checked and the memory card 3 is checked. The initial setting processing unit 11 displays an initial message on the display unit 2 via the screen control processing unit 13. Here, when one of the operation keys 4 is operated, a screen for selecting the size of the displayed character is displayed, which is performed according to the input of the operation key 4, and when the size of the displayed character is determined, Characters are displayed in size. When the size of the display character is determined, the page management processing unit 12 makes a selection including the title of information written in the memory card 3 (titles of one or more sentences written in the memory card 3). The screen is selected and sent to the screen control processing unit 13, and the screen control processing unit 13 displays the title with characters of a predetermined size.

  On the other hand, the screen control processing unit 13 is provided with the resume data holding means 130, and the screen control processing unit 13 displays the contents of the page of the memory card 3 for a certain period of time (the user is reading the contents of the page). The page information (along with the title information) is set in the resume data holding means 130 and functions as a “bookmark” used in normal reading. The contents of the resume data holding means 130 change every time a page is sequentially sent, but the contents at that time are held even when the power is turned off. When the same title information of the same memory card 3 is selected at the next opportunity, the page management processing unit 12 detects that valid data is set in the resume data holding means 130 of the screen control processing unit 13, and then controls the screen control. The processing unit 13 is instructed to display a page using the resume data.

  After the above-mentioned title is displayed, when valid resume data is not held in the resume data holding means 130 (or invalid data), the operation key 4 is used for each item on the title screen displayed on the screen of the display unit 2. When a movable cursor is displayed and the cursor is moved and the operation key 4 is operated to select one title, the page management processing unit 12 reads the first page of the corresponding sentence (for example, the cover of the document). , Displayed on the display unit 2.

  Thereafter, when the operation key 4 for sending a page is pressed, the screen control processing unit 13 displays a table of contents page. In the text display state, one of the two operation keys has a function of displaying the next page, and the other has a function of returning to the previous page. If any of the operation keys is kept pressed, the page is fast forwarded or rewinded.

  When the power switch 5 is turned off, the end processing unit 14 turns off the power of the entire apparatus and ends it. When the battery voltage confirmation processing unit 16 detects that the battery voltage drop is below a certain level, the termination processing unit 14 is driven after giving an alarm, and the auto power-off processing unit 17 is operated for a certain time or more. It is driven when it is detected that no key input occurs. When the reset key 6 is operated, the forcible reset unit 15 forcibly initializes the current state of each unit and returns it to the initial state.

  According to the present invention, it is possible to realize an information display device that is portable and can be held and operated with one hand by attaching a memory card storing various types of information. Also, when various character data and picture data such as newspapers, magazines, paperback books (books) are stored on the memory card, the necessary items (titles) are selected by simple operation, and the desired page in the page is selected. By selecting and displaying and switching pages, a book with a large amount of text can be displayed and read at an arbitrary location.

  This makes it possible to read business information necessary for work, various reports, specialized books, etc. and read various books as a hobby. In this case, there is no need to have printed magazines, books, etc., and a small information display device can be viewed with one hand, so it can be used in any place (eg on a commuter train) as long as there is a small space. Can do.

  Information on the memory card used in the present invention is recorded in an IC memory card that can be rewritten for a fee at an information sales terminal (or sales point), or the IC memory card itself on which the information is recorded is sold. Available. When newspapers, magazines, general books, and the like are distributed in this manner, they can be displayed and read by the display device according to the present invention, and paperless in publishing can be realized.

  In a first plan of the present invention, in a display device having a display unit for displaying a large number of characters and pictures, an operation key, and a processing unit for controlling each unit, the operation key moves the cursor on the selection display screen of the display unit. And a text corresponding to one or more titles, with a function to select one of the displayed items and at least two keys to send or return pages on the information data display screen A memory card mounting section in which a memory card in which information data constituting the memory card is written in a predetermined format is replaceably mounted. The memory card is mounted in the memory card mounting section, and the screen is displayed when the power is turned on. On the other hand, when the title of the information data of the memory card is selected by the operation key, the corresponding sentence is displayed in page units, and the display page is displayed by operating the operation key. Be switched is a display device characterized. The second plan is the first plan in which the processing unit is a power input processing unit for checking the power status, an initial setting processing unit for displaying an initial screen and selecting display characters, and information data written in a memory card. A page management processing unit that displays a selection screen including the titles of each and displays a sentence of the corresponding information data when one title is selected from the selection screen, and each displayed page screen The display device includes a screen control processing unit that displays contents of a corresponding page in response to an input of page feed or return by an operation key.

  Further, the third proposal is characterized in that, in the above-mentioned second proposal, the initial setting processing unit detects a memory card attachment state and confirms the attribute of the memory card, and displays a corresponding message if it is defective. It is a display device. In the fourth plan, in the second or third plan, the initial setting processing unit displays a screen for selecting the display character size, and responds to an input for selecting the display character size from the operation keys. After that, the display device is characterized in that it controls to display the information data of the memory card according to the size of the selected display character. Further, in the fifth plan, in the second to fourth plans, the screen control processing unit displays the information data of each title in units of pages, and stores the data representing the page when the display is finished on the intermediate page. Resume data holding means, and the page management processing unit checks the data of the resume data holding means when a title is selected from the selection screen, and the valid data is stored in the resume data holding means. A display device that displays the information data of the page. The sixth plan is the second to fifth plans, and when the page management processing unit and the screen control processing unit display a page of information data in the selected title, what is included in the entire page of the title on the screen. A display device that displays whether a page is displayed.

  FIG. 2 is an external view of the portable information display device of the embodiment.

  In FIG. 2, (1) is a front view, (2) is a lateral view, and (3) is a back view. Reference numeral 20 denotes a main body of the information display device, and the size is such that it can be grasped with one hand. In the surface view shown in (1), 21 is an LCD (Liquid Crystal Display) screen that occupies most of the surface area of the main body 20, and can display a large number of characters vertically or horizontally. Reference numerals 4 to 6 (corresponding to the same reference numerals in FIG. 1) denote an operation key, a power key, and a reset key, respectively. In this embodiment, the operation key 4 is composed of two keys 4a and 4b in the case of this embodiment, and these two keys are configured as a seesaw type key in which one is turned on and the other is turned off. The action of the two keys changes corresponding to the display screen. That is, on a screen for selecting one of a plurality of items, the operation key 4a has a function of moving a cursor indicating one of the plurality of items, and the operation key 4b selects (decides) an item at the current cursor position. ) On the screen displaying the text, the operation key 4a has a page feed (advance to the page after the current page) function, and the operation key 4b has a page return (return to the page before the current page) function. .

  These keys 4 to 6 may not be arranged on the surface of the main body, but may be arranged on the side surface of the main body as indicated by a dotted line in FIG. In that case, all the keys can be operated with one hand holding the main body. An AC adapter connection port 23 for connecting an AC adapter when used with a contrast adjustment dial 22 and an AC power source is arranged on the side surface of the main body, and the memory card 3 is placed in the main body 20 (on the back side of the LCD screen 21) on the back side. A mounting portion 24 to be mounted is provided at a position), and 24 a is a memory card insertion slot for inserting the memory card 3. Further, an eject button 25 and a battery box 26 that are pressed when the memory card 3 is ejected are provided.

  FIG. 3 is a hardware configuration diagram of the portable information display device of the embodiment.

  In FIG. 3, 30 is a central processing unit (CPU), 31 is an oscillator (OSC) that generates a clock for driving the CPU 30, 32 is a RAM for storing key input and control processing information in the device, and 33 is each part by the CPU 30. A program ROM for storing a program for performing the control process of the above, 34 is a liquid crystal display (LCD) constituting the display device, 35 is a liquid crystal display control circuit (LCDC) for controlling the liquid crystal display, and 36 is an internal A display RAM (VRAM) 37 for expanding the information data read from the memory and the external memory as output screen data to the display, 37 is a kanji ROM containing font data for displaying the information read from the memory card as characters , 38 is an operation unit (operation keys 4, power switch 5, reset key 6, etc.), 39 is an operation unit 38 An operation control unit that performs control to detect force and notify the CPU 30, 40 is a power supply unit, 41 is a power supply control unit that detects the state of the power supply unit and controls supply of power to each unit, and 42 is a memory card ( IC card (IC memory card), 43 is a card interface (IF) for controlling the interface between the memory card and the bus, 44 is a bus composed of a data bus, an address bus and a control line for connecting each circuit. It is. Resume data indicating which page of which sentence is the page read last time is stored in the RAM 32. For this reason, the RAM 32 has a built-in power supply and stores data.

  In the apparatus configuration of FIG. 3, based on a series of control information stored as a program, power input processing, initial setting processing (card determination processing, display character selection processing), page management processing (data selection processing), and screen control processing Through (including resume data processing), predetermined information in the card is displayed in accordance with the screen display image of the device.

  As the memory card, various memory cards such as an IC card with a backup power source, an SRAM, or a ROM without a power source can be used. A rewritable memory card such as an IC card or an SRAM can be a magazine, a book, Information received from newspapers and information services (character data and picture data) is written in a format that can be manipulated in page units, and after reading, the same card is overwritten with another information to display different information many times. Can be used. It is assumed that the storage capacity of the memory card is such that, for example, an ordinary paperback book can store several volumes of information. The internal information configuration of the memory card may be unified in advance, but a basic configuration example is shown in FIG.

  FIG. 4 shows a configuration example of the internal information of the memory card. (1) in FIG. 4 shows the entire configuration, management table information is stored at the head of the memory card, and then title 1 header information and title 1 information. (Data such as text) is stored, and similarly, the header information of the title N and the title N information are sequentially stored. As shown in (2) of FIG. 4, the management table information stores card individual information including card type and capacity, card initialization information, initialization maker information, card management information, and the like. In addition, as shown in (3) of Fig. 4, the contents of each title header information are information management number, information title, data capacity and data display format (whether the text is displayed vertically or horizontally) Etc. are stored.

  The display control by the information display device of the present invention is based on the program ROM 33 in the hardware configuration shown in FIG. 3 and the mutual operation with the processing operation of the CPU 30 and each control unit (LCDC 35, operation control unit 39, power control unit 41, etc.) Performed by action.

  A processing flow for realizing the functions of the processing units (10 to 17 in FIG. 1) shown in FIG. 1 is shown in FIGS. 5 to 14, and each processing flow will be described together with the overall operation in the information display apparatus.

  FIG. 5 is a flow of power input processing. This processing corresponds to the function of the power input processing unit 10 in FIG. 1, and first the memory card is inserted into the card insertion slot (24a in FIG. 2) (S1 in FIG. 5), and the power switch (5 in FIG. 2) When turned on (S2 in FIG. 5), system start-up is started, and memories and registers other than the resume memory (corresponding to the resume data holding means 130 in FIG. 1 and provided in the CPU 30 in FIG. 3) are stored. The CPU itself resets (S3 in FIG. 5). Next, a card detection operation is performed to determine whether the card is correctly inserted (S4). If the card is not correctly inserted, a card insertion failure message (stored in the program ROM 33) is displayed (S5). An example of this display screen is denoted by G1, and A. of FIG. Shown in

  Further, it is determined whether or not a power key operation (operation to turn off) is performed (S6). If there is no power key operation, auto power off (power off after a certain period of time) is controlled (S7). Off control is performed (S8).

  FIG. 6 is a flowchart of a memory card attribute confirmation process in the initial setting process. The processing in FIG. 6 is a part of the function of the initial setting processing unit 11 in FIG. 1. When it is found in FIG. 5 that the card is correctly inserted, the initial setting processing is started. It is determined whether the memory card is a valid card that can be handled by the information display device. First, an initial message display is performed (S1 in FIG. 6). An example of the displayed screen is shown in FIG. Shown in Next, the card attribute information is confirmed (S2). This attribute confirmation is performed by identifying the internal information of the memory card ((1) in FIG. 4). In this example, it is determined whether or not the electronic book card attribute is set (S3 in FIG. 6). The electronic book card attribute is a card that stores information such as newspapers, magazines, and books used in the information display device of the present invention, and this determination is made to distinguish from other purpose memory cards. If it is not the attribute of the electronic book card, a card failure message is output (S4), and the same processing as S6 to S8 in FIG. 5 (S5 to S7 in FIG. 6) is performed. An example of the failure message displayed in this case is shown in FIG. Shown in

  FIG. 7 is a processing flow for determining display characters in the initial setting process. This process is also a part of the function of the initial setting processing unit 11 in FIG.

  In FIG. 6, when the e-book card attribute is confirmed, when the page feed key (one operation key 4a in the operation key 4 in FIG. 2) is operated (S8 in FIG. 7), the character display selection screen is displayed. Is displayed (S9). A display example of this screen is shown in FIG. Shown in In this example, “Looks a lot” and “Looks nice” are shown, but the former means that the displayed characters are reduced and many characters are displayed on one screen, and the latter is enlarged to display one screen. In this example, the cursor (displayed with ■, □ is not displayed) is displayed on one of the upper parts of these two messages above “looks beautiful”. When the page feed key (operation key 4a in FIG. 2) is pressed, the cursor can be moved, and when the page return key (operation key 4b in FIG. 2) is operated, determination can be instructed.

  When the character display selection screen is displayed, the screen waits for key input (S10 in FIG. 7). When the operation key is input in the state of (2), identification is performed (S11 in the same), and when it is understood that the input is the page return key (4b in FIG. 2), selection of a 24 dot font which is a large character is determined (FIG. 7). S12). In the case of the input of the page feed key (4a in FIG. 2), a screen for selecting a 16-dot font which is a small character (a state in which the cursor has moved) is displayed and the key input is awaited (S13 in FIG. 7). Thereafter, input identification is performed (S14), and when page feed key input is identified, the processing of S14 and S15 is performed. When page return key input is identified, selection of a 16-dot font is determined (S16). A title selection screen is displayed (S17).

  A display example of this title selection screen is shown in FIG. Shown in Even on this screen, it is possible to select a font, return to the previous page (in this case, nothing is executed), and advance to the next page.

  FIG. 8 is a page management process flow, and FIG. 9 is a data selection process flow in the page management process. The processing in FIG. 8 corresponds to the function of the page management processing unit 12 in FIG. This is executed following the display of the title selection screen in FIG. 7, and data selection processing is first performed (S1 in FIG. 8).

  Details of this data selection processing are shown in FIG. In the title selection screen (first page of the table of contents), the titles of a plurality of information (such as novels) stored on the memory card are displayed, and the service area at the top of the screen displays pages (all pages are BBBB, And the selection message “Please select” is displayed (S100 in FIG. 9). In addition, if the title selection screen is not sufficient for one page, it is divided into multiple pages, so if you want to see the titles of other pages, the selection items "Go to previous page" and "Go to next page" are displayed. ing. In this display state, a key input waiting state is entered (S101), and it is determined whether there is a cursor return (the page return key 4b is pressed) by the operation key (S102). In the case of cursor return, the current cursor is displayed. Is determined as the selected title (S103).

  If cursor return does not occur, it is determined whether or not the cursor is returned by the operation key 4b when the cursor is positioned on "go to the previous page" or "go to the next page" on the display screen (S104). The selection screen for the next page is displayed and the cursor is moved over the first title (S105). If there is no cursor return, the cursor is moved to the first title on the display screen (S106), and the process returns to step S102 and the subsequent processing is repeated until the selected title is determined.

  When the title is determined in the data selection process flow of FIG. 9, the process of step S1 of FIG. 8 is executed to check the copy prevention function confirmation and validity of the selected title information (text) (FIG. 9). 8 (S2), if it is determined as defective, a message indicating a sentence defect (incorrect) is displayed in the service area (upper part of the screen) (S3 in FIG. 8). For example, a message “This text cannot be read” is displayed in the service area.

  Thereafter, the process returns to the data selection process, and another title is selected. If it is appropriate, it is determined whether the resume information (held by the CPU 30) is valid (not an invalid page value) (S4). If it is valid, resume data (memory with power supply of the RAM 32 managed by the CPU 30 in FIG. 3) is determined. (Stored in area) (S8), the number of pages in the text of the title included in the data is displayed (S9), and the storage information of the corresponding page is displayed on the screen (S10). Thereafter, the screen control process (FIG. 10) is entered. If the resume data is not valid in S4, the title (cover) of the selected item is displayed (S5). Thereafter, when the page feed key is input (S6), the next second page, that is, the table of contents is displayed (S7), and the process proceeds to the screen control process. An example of the title display screen at this time is shown in FIG. An example of the table of contents display shown in FIG. Shown in

  FIG. 10 is a processing flow of screen control. In FIG. 8, when resume data is retrieved (S8 in FIG. 8) and when the selected title is displayed, page feed / return input is performed in step S1 in FIG. Waiting (input of operation key 4a for page feed and input of operation key 4b for page return).

  When there is an input, it detects the fast-forward / fast-reverse state (1 second or more, the key is continuously pressed) (S2 in FIG. 10), and after detection (after 1 second or more has passed) Whether the return is detected or not detected, it is determined whether the key input is page feed or page return (S3). The page counter is incremented by +1 or -1 depending on whether the determination result is page feed or page return (S4, S5).

  In the case of page feed, it is determined whether or not the last page has been reached (S6). In the case of page return, it is determined whether or not page 1 has been reached (S7). The return state is checked (S8), and if it is the fast forward / return state, the process returns to Step S3 and the same operation is repeated. When it is not in the fast-forward / return state or when page 1 is reached by page return, the resume function is executed and the resume data is updated (S9). In this case, the numerical value of the selected title and page is stored as resume data. Subsequently, page display (screen service area) is performed (S10), and corresponding page information (memory card) is displayed on the screen (S11).

  In the page feed, when the last page is reached (S6), it is determined whether the page feed key is restored (S12). When the page is restored, the title selection screen is restored (S13). Returning to the data selection process of S1 (FIG. 9).

  C. of FIG. Shows an example of a table of contents display on the next page (second page) of the title screen. Further, after that, a display example of the screen in the body page is shown in FIG. B. Shown in Each of these is a vertical text display. In FIG. 15 is a display example when “Looks beautiful” (24-dot font) is selected on the character display selection screen in FIG. Is a display example in the case where “Look a lot” (16 dot font) is selected on the character display selection screen. When the page feed key (operation key 4a) is pressed in this state, the text of the next page is displayed, and when the page return key (operation key 4b) is pressed, the text of the previous page is displayed.

  FIG. 11 shows a processing flow of other functions. A. of FIG. Is a flow of end processing (corresponding to 14 in FIG. 1), and the voltage drop is continuously detected for a certain time by turning off the power switch (5 in FIG. 2), the signal generated by the auto power-off processing, and the battery voltage confirmation processing. After that, the system is activated by the signal that is generated, and the power of each part including the display is turned off. B. of FIG. Is a forcible reset processing flow (corresponding to 15 in FIG. 1). The memory register is initialized by the reset key (6 in FIG. 2), and the initial setting processing (see FIGS. 6 and 7) is started. Further, in FIG. Is a flow of battery voltage confirmation processing (corresponding to 16 in FIG. 1). When a voltage drop signal (flag is set) is generated, a message instructing battery replacement (for example, a mark indicating a battery) is displayed on a part of the screen. Displayed and turned off after a certain period of time.

  FIG. 12 is a processing flow of auto power off. If the input waiting state continues for a certain period of time (in this example, 2 minutes) in the process shown in the figure, an end process (A in FIG. 11) is started.

  13 to 15 are examples (part 1) to (part 3) of screens displayed in each state by the information display device. A. of FIG. Is a screen of a card installation error message. Is the screen of the initial screen message. Is a bad message screen. Is a display character selection screen.

  In FIG. Is the title selection screen. Is the title screen. Is a table of contents display screen. In addition, A. of FIG. Is a vertical writing display image when 24 dot font is selected. Is a vertical writing display image when a 16-dot font is selected. Needless to say, these texts can be displayed horizontally by the header information of the memory card (see FIG. 3) (same as title display).

  A display device using a liquid crystal display (LCD) occupies most of the area on the surface side of the information display device as shown in (1) of FIG. 2, and each key or switch is arranged on the lateral surface of the device (FIG. 2). (2) (shown with a dotted line).

  FIG. 16 shows a configuration example of a display device with different screen capacities. In this example, a 240 × 320 dot configuration is used, and a 16 dot font can display 15 × 20 characters using the entire screen, and a 24 dot font can display 10 × 13 characters. B. In the example of 640 × 480 dots, when the entire screen is used, the number of characters of 40 × 30 can be displayed with a 16-dot font, and 26 × 20 characters can be displayed with a 24-dot font.

  FIG. 17 shows a recording format of information in the memory card. Character data of a sentence is sequentially stored in each storage position indicated by a dot in the figure, and even if a line feed mark is generated, the head of the next line is subsequently stored. As a result, character data is efficiently stored, and in the screen display process, the number of characters that can be displayed on one screen is extracted corresponding to the size (font) of the display character, and the line is broken only with line feed mark data. And display. In the case of a large character (24-dot font), the number of text characters that can be displayed on one screen is larger than that of a small character (16-dot font). Further, in the display of each sentence, the number of pages is displayed in the service area in the AAAA / BBBB format, and page display corresponding to the screen size of each display device and the font of display characters is performed. Therefore, in the case of a large character, the text that normally enters one page in the case of small character display is divided and displayed on a plurality of display screens, and in this case, the whole page and the display page are also changed.

It is a principle block diagram of this invention. It is an external view of the portable information display apparatus of an Example. It is a hardware block diagram of the portable information display apparatus of an Example. It is a structural example of the internal information of a memory card. It is a flow of a power input process. It is a memory card attribute confirmation process flow in the initial setting process. It is a processing flow of the display character determination in an initialization process. It is a processing flow of page management. It is a flow of a data selection process in the page management process. It is a processing flow of screen control. The processing flow of each other function is shown. It is a processing flow of auto power off. It is an example (the 1) of the screen displayed in each state by an information display apparatus. It is an example (the 2) of the screen displayed in each state by an information display apparatus. It is an example (the 3) of the screen displayed in each state by an information display apparatus. It is an example of a structure of the display apparatus from which screen capacity differs. It is a recording format of information in a memory card.

Explanation of symbols

1. Processing unit (CPU and memory) of portable information display device
2 Display unit such as liquid crystal 3 Memory card 4 Operation key 5 Power switch 6 Reset key 10 Power input processing unit 11 Initial setting processing unit 12 Page management processing unit 13 Screen control processing unit 14 End processing unit 15 Forced reset unit 16 Battery voltage check Processing unit 17 Auto power-off processing unit

Claims (1)

In a display device capable of switching information data to be displayed on the display unit to information data on another page in response to a display page feed operation in the operation unit.
When the feed operation is a fast-forward operation, the information data of the page finally designated by the fast-forward operation is displayed without displaying the information data of the page in the middle of fast-forward before the finally designated page. A control unit capable of being displayed on the display unit;
A display device comprising:

Images