JP2014186701A - Display device, power consumption management method, and power consumption management program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device and the like, which are capable of allocating a power consumption amount permissible for each document content, and allocating an appropriate amount to document content such as those having a large number of pages and requiring a hand-writing input.SOLUTION: In a case where content category determination means 101 determines that document content is document content for reading, a first power consumption amount in accordance with a page switchover amount of document data is allocated to the document content as a permissible power consumption amount, or, in the case of the document content being determined to be hand-written document content, a second power consumption amount in accordance with a hand-writing amount is allocated as a power consumption amount permissible for the document content, and power consumption is managed for each document content on the basis of the allocated power consumption amount permissible for each document content.

Description

  The present invention relates to a display device such as electronic paper and a tablet terminal, a power consumption management method and a power consumption management program implemented in the display device.

  As a display device that displays data such as documents, electronic paper, a tablet terminal, or the like that can maintain a display state without consuming power of a built-in power supply is used.

  Such a display device can store a large amount of document contents recently, but if a user freely browses a plurality of document contents or performs a large amount of handwriting input, the power consumption increases the capacity of the power supply unit. There is a problem that even if an attempt is made to browse a specific important document or to perform handwriting input on an important document, it becomes impossible due to power shortage.

  Patent Document 1 discloses a technique for allocating virtually consumable power for each application for a battery-driven portable device.

  In this technique, the amount of power to be allocated to each application is determined from the difference between the user setting, the remaining battery level, and the previous remaining level. As a result, since the amount of power allocated for each application drive is determined, the user can use a plurality of applications with the determined amount of power with confidence.

JP 2009-1111759 A

  However, display devices such as electronic paper often have the main purpose of browsing document content. For this reason, a browsing application is often used as an application, and handwriting input as an alternative use of paper is often used. Required. For this reason, as described in Patent Document 1, even when referring to a technique for allocating power for each application, if a user freely browses a plurality of document contents or performs a large amount of handwriting input, power consumption is reduced. The problem of exceeding the capacity of the power supply unit could not be solved.

  More specifically, some document contents require several hundreds of pages to be switched. When reading in a concentrated manner, a large amount of power may be consumed for page switching. In this case, if power management is performed by allocating power for each application, there is a problem that power cannot be appropriately allocated to the document content of hundreds of pages, and the application cannot be used during reading.

  In addition, since document content centered on reading has characteristics such as a small range where handwritten input is possible, even if handwritten input is essential, depending on the type of document content, handwriting power is not necessarily required. Therefore, when performing power management by allocating power consumption for each application, the allocated amount may become excessive.

  The present invention has been made in view of such a technical background, and can allocate power consumption that can be used for each document content, and requires document content having a large number of pages and handwritten input. Provided is a display device and a power consumption management method capable of appropriately allocating a document content, and further provides a power consumption management program for causing a computer of the display device to execute the power consumption management method. This is the issue.

The above problem is solved by the following means.
(1) The power supply unit and the display state of the data of any page in any one of the plurality of document contents each consisting of one page or a plurality of pages are held without consuming power of the power supply means. And display means for consuming the power of the power supply unit to switch the display page, and handwriting means for consuming the power of the power supply unit and displaying data on the screen of the display means by handwriting, First power consumption amount determining means for predetermining for each document content a first power consumption amount corresponding to the page switching amount of the document data, and a second power consumption amount corresponding to the handwritten amount by the handwriting means. Second power consumption determination means that is determined in advance for each document content, and content type determination that determines whether each document content is a reading document content or a handwritten document content If the document type is determined as the reading document content by the content type determination unit, the first power consumption determined by the first power consumption determination unit is used for the document content. When the document content is determined to be handwritten document content, the second power consumption determined by the second power consumption determination unit can be used for the document content. Allocating means for allocating as the required power consumption, and management means for managing the power consumption for each document content based on the power consumption available for each document content allocated by the allocating means. Characteristic display device.
(2) The display device according to (1), wherein the content type determination unit determines whether the document content is a reading document content or a handwritten document content based on the total number of pages of the document content.
(3) The content type determination means reads the document content depending on whether at least one of the title, tag information, and classification of the document content includes a document content for reading or handwritten document content. 2. The display device according to item 1, wherein the display device determines whether the content is a document content for handwriting or a document content for handwriting.
(4) The content type determination means reads the document content based on the ratio between the total value of the maximum rectangular area that can be handwritten on the blank page portion of each page for all pages and the total area of the document content. 3. The display device according to item 1, wherein it is determined whether the content is a document content for handwriting or a document content for handwriting, and when the ratio of the total value to the entire area of the document content is equal to or greater than a certain value, the content is determined to be handwritten document content.
(5) The management unit may prohibit page switching when the usable power consumption allocated to the document content determined as the reading document content by the allocation unit is insufficient. The display device described in 1.
(6) The management unit may prohibit handwriting input when the usable power consumption allocated to the document content determined as the handwritten document content by the allocation unit is insufficient. The display device described in 1.
(7) When the available power consumption allocated to the document content by the allocation unit is insufficient, the management unit applies the available power consumption allocated to other document content. 6. The display device according to any one of 6.
(8) The power supply unit and the display state of the data of any page in any one of a plurality of document contents each consisting of one page or a plurality of pages are held without consuming power of the power supply means. And display means for consuming the power of the power supply unit to switch the display page, and handwriting means for consuming the power of the power supply unit and displaying data on the screen of the display means by handwriting, A first power consumption determining step for predetermining for each document content a first power consumption corresponding to a page switching amount of the document data; A second power consumption amount determining step for predetermining for each document content a second power consumption amount corresponding to a handwritten amount by the handwriting means; In the content type determination step for determining whether the content is a content or a handwritten document content, and in the content type determination step, when the document content is determined to be a document content for reading, the power consumption determined in the first power consumption determination step When the first power consumption is assigned as the power consumption that can be used for the document content, and the document content is determined to be the handwritten document content, the second power consumption determination step determines the second power consumption determination step. 2 is allocated as the power consumption that can be used for the document content, and the power for each document content is based on the power consumption that can be used for each document content allocated in the allocation step. And a management step for managing consumption. Power consumption management method to.
(9) The power supply unit and the display state of the data of any page in any one of the plurality of document contents each consisting of one page or a plurality of pages are held without consuming power of the power supply means. And display means for consuming the power of the power supply unit to switch the display page, and handwriting means for consuming the power of the power supply unit and displaying data on the screen of the display means by handwriting, A first power consumption amount determining step for predetermining, for each document content, a first power consumption amount corresponding to a page switching amount of the document data, and a handwriting amount by the handwriting means. A second power consumption determining step for determining the second power consumption corresponding to each document content in advance, and whether each document content is a document content for reading or a handwritten sentence In the content type determination step for determining whether the content is a content type and the content type determination step, if the document content is determined to be a document content for reading, the first power consumption determined in the first power consumption determination step When the document content is determined to be handwritten document content, the second power consumption determined in the second power consumption determination step is allocated. Assigning as a power consumption that can be used for the document content, and management for managing the power consumption for each document content based on the power consumption that can be used for each document content assigned in the assignment step And a power management program for executing Beam.

  According to the invention described in item (1) above, the first power consumption amount corresponding to the page switching amount of the document data and the second power consumption amount corresponding to the handwriting amount by the handwriting means are previously determined for each document content. In addition, when the document content is a reading document content, the first power consumption amount is assigned as a usable power consumption amount for the document content, and the document content is a handwritten document content. The second power consumption is allocated as the power consumption that can be used for the document content, and the power consumption for each document content is managed based on the power consumption that can be used for each allocated document content. Is done. Therefore, it is possible to perform appropriate assignment to reading document content having a large number of pages and handwritten document content that requires handwriting input. As a result, it is possible to eliminate the inconvenience that the amount of power consumption is not allocated during reading or the amount of allocation is excessive.

  According to the invention described in item (2), it is possible to easily determine whether the document content is a reading document content or a handwritten document content based on the total number of pages of the document content.

  According to the invention described in the above item (3), the document content depends on whether at least one of the title, tag information, and classification of the document content includes a document content for reading or a document content for handwriting. Can accurately determine whether the document content is for reading or handwritten.

  According to the invention described in item (4) above, based on the ratio between the total value when the maximum rectangular area that can be handwritten in the blank portion of each page is totaled for all pages and the total area of the document content, the document content Is a reading document content or a handwriting document content, and if the ratio of the total value to the total area of the document content is a certain value or more, it can be accurately determined that the content is a handwriting document content.

  According to the invention described in item (5) above, page switching is prohibited when the available power consumption allocated to the document content determined as the reading document content is insufficient.

  According to the invention described in item (6) above, handwriting input is prohibited when the available power consumption allocated to the document content determined to be handwritten document content is insufficient.

  According to the invention described in item (7), when the usable power consumption allocated to the document content by the allocating unit is insufficient, the usable power consumption allocated to the other document content is allocated. Therefore, even when the amount of power consumption that can be used for important document content is insufficient, it is possible to avoid a situation in which browsing or handwriting input becomes impossible.

  According to the invention described in the preceding item (8), it is possible to appropriately allocate the reading document content having a large number of pages and the handwriting document content requiring handwriting input, and the power consumption can be reduced during reading. It is possible to eliminate the disadvantage that the allocation is lost or the allocation amount is excessive.

  According to the invention described in the preceding item (9), a process for appropriately assigning to a reading document content having a large number of pages or a handwritten document content that requires handwriting input is performed on the computer of the display device. Can be executed.

It is a front view of the electronic paper as a display apparatus which concerns on one Embodiment of this invention. It is a block diagram which shows the electrical structure of electronic paper. It is a flowchart which shows the allocation process of the power consumption amount which can be used with respect to each document content performed in an electronic paper. It is a flowchart which shows the subroutine of the determination process of the power consumption according to page switching amount shown by step S2 of FIG. It is a flowchart which shows the subroutine of the determination process of the power consumption according to the amount of handwriting shown by step S3 of FIG. FIG. 4 is a flowchart showing a subroutine of a process of scrutinizing the contents of a document content and determining allocation of power consumption for the document content shown in step S <b> 4 of FIG. 3. An example of the matching table of the document content for reading is shown. It is a flowchart which shows a process when the power consumption allocated to document content runs short. It is a figure which shows a document content in case a link destination exists in document data.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a front view of an electronic paper 1 as a display device according to an embodiment of the present invention. Note that the display device is not limited to electronic paper, and may be a tablet terminal or the like.

  The electronic paper 1 includes a display unit, and a page return button 12, an execution / update button 13, and a page feed button 14 are disposed at the lower end.

  The display unit 11 has a known configuration in which the display state of the document data is maintained without consuming the power of the power supply unit described later, and the power is consumed when the display page is switched. “Without power consumption” is a concept that allows not only power consumption but also power consumption to be small.

  A touch panel (not shown) is provided on the surface of the display unit 11, and the user can input a memo such as a character or a figure by handwriting into the document data by tracing the touch panel with the handwriting input device 2 such as a handwriting pen. It can be configured. In addition, the display of the memo etc. input by handwriting by the handwriting input device 2 is performed with power consumption similarly to the page switching.

  The page return button 12 is a button for switching the displayed page to the previous page, and the execution / update button 13 selects and displays one of the document contents, for example, from a plurality of document contents. The page feed button 14 is used to change the displayed page to the next page.

  FIG. 2 is a block diagram illustrating an electrical configuration of the electronic paper 1.

  In addition to the display unit 11 described above, the electronic paper 1 includes a CPU 101, a RAM 102, a ROM 103, an image processing unit 104, an external storage device 105, an operation unit 106, a power management unit 107, a power unit 108, a network interface (in the drawing, a network IF and 109).

  The CPU 101 performs overall control of the entire electronic paper 1 by loading a program stored in the ROM 103 or the external storage device 105 into the RAM 103 and executing the program. For example, based on a user operation, an arbitrary page of any one of a plurality of document contents stored in the external storage device 105 is displayed on the display unit 11, the display page is switched, or the screen is changed. When handwriting by the handwriting input device 2 is performed, control is performed such as capturing, inputting, and displaying.

  Furthermore, in this embodiment, for each of a plurality of document contents stored in the external storage device 105, a first power consumption amount corresponding to the page switching amount of the document data and a first power amount corresponding to the handwriting amount by the handwriting input device 2 are used. 2 is determined in advance, whether each document content is a reading document content or a handwritten document content, and according to the determination result, an available power consumption is allocated to each document content. The process is performed, details will be described later.

  The RAM 102 is a storage medium that provides a work area when the CPU 101 operates in accordance with the operation program, and the ROM 103 is a storage medium that stores an operation program executed by the CPU 101 and other data.

  The image processing unit 104 performs predetermined image processing on image data and the like stored in the external storage device 105.

  The external storage device 105 is composed of a portable recording medium such as an SD card, for example, and stores a plurality of document contents including one page or a plurality of pages displayed on the display unit 11.

  The operation unit 106 includes the touch panel described above, and reads the coordinates of the touch position when the touch panel is touched.

  The power management unit 107 manages the state of the power supply unit 108 and manages the usable power consumption allocated to each document content. The power management unit 107 is configured as a part of the function of the CPU 101. The power supply unit 108 supplies power to each unit of the electronic paper 1 and is configured to be rechargeable. In addition, when the page displayed on the display unit 11 is switched or when a memo is written on the screen by the handwriting input device 2, the power of the power source unit 108 is consumed, and the power management unit 107 consumes the consumed power amount. Is subtracted from the amount of power that can be used.

  The network interface 109 functions as a communication unit that transmits and receives data between the electronic paper 1 and another external device via a network.

  Next, a process of assigning usable power consumption to each document content executed in the electronic paper 1 will be described with reference to a flowchart of FIG. This assignment process is executed when the power is turned on, when document content is registered, when the content of the document content is changed, and the like.

  Note that the processing shown in the flowchart of FIG. 3 is executed by the CPU 101 operating according to an operation program recorded on a recording medium such as the ROM 103.

  In step S1, in order to perform the processing in steps S2 to S4 for all document contents, it is determined whether or not the processing has been completed for all document contents. If not completed (NO in step S1), the power consumption amount (first power consumption amount) corresponding to the page switching amount is determined for one document content in step S2. This determination process will be described later.

  Next, in step S3, for the same document content, a power consumption amount (second power consumption amount) corresponding to the handwritten amount by the handwriting input device 2 is determined. This determination process will be described later.

  Next, in step S4, the content of the document content is scrutinized, and the allocation of the power consumption is determined for the document content, and then the process returns to step S1. This determination process will be described later.

  Such processing in steps S2 to S4 is performed for all document contents.

  In step S1, when the processing is completed for all document contents (YES in step S1), it is checked in step S5 whether the allocation of power consumption is completed. If not completed (NO in step S5). In step S6, unallocated document contents are allocated equally based on the total number of document contents. If the assignment has been completed (YES in step S5), this process ends.

  FIG. 4 is a flowchart showing a subroutine of the first power consumption determination process shown in step S2 of FIG.

  In step S21, the total number of pages of the document content is acquired, and in step S22, power consumption required for switching per page × total number of pages is determined as the first power consumption. In step S23, the determined power consumption amount is registered in association with the document content, and the process returns.

  FIG. 5 is a flowchart illustrating a subroutine for determining the amount of power consumption according to the amount of handwriting shown in step S3 of FIG.

  In step S31, it is checked whether or not an undetected handwritten area remains for each page of the document content. If it remains (YES in step S31), the largest rectangular area that can be handwritten is detected in step S32. That is, the largest rectangular area that can be handwritten in the blank page portion is detected for each page. Next, in step S33, the value of the detected maximum rectangular area that can be handwritten is added to the value of the rectangular area of each page detected so far, and then the process returns to step S31.

  The processes in steps S32 and S33 are performed on all pages, and the total value of the maximum rectangular area that can be handwritten for the document content is obtained.

  If there is no handwritten area not detected in step S31 (NO in step S31), in step S34, the ratio of the total value of the maximum rectangular area that can be handwritten to the total area of the document content is set as the document content. Register in association.

  Next, in step S35, the power consumption necessary for handwriting is calculated from the total value of the maximum rectangular area that can be handwritten, and determined as the second power consumption. In step S36, the determined second power consumption is determined. Returns after registering the quantity in association with the document content.

  FIG. 6 is a flowchart showing a subroutine of the process of scrutinizing the content of the document content and determining the allocation of power consumption for the document content shown in step S4 of FIG. In this process, it is determined whether the document content type is a reading document content or a handwritten document content, and the power consumption is allocated according to the determination result.

  In step S41, the title, tag information (organization information), and classification of the document content are matched with the matching table. If any of title, tag information (organization information), or classification does not exist, matching is performed based on the existing information. Next, in step S42, it is determined whether or not the content is handwritten document content.

  FIG. 7 shows an example of a matching table for reading document contents. In this table, as the title (A), "list of books that I want to read now", "list of titles enough to read", "list of titles of books that have been read all at once", "list of titles of books read all night" Has been. Further, “recommended books”, “reading impressions”, “novels”, and “pure literature” are exemplified as the tag information (B), and “collection” as the classification (C) based on the ICBN (International Standard Book Number) classification symbol table 20. “Document”, “comics”, and “literature” are illustrated.

  In the example of FIG. 7, the document content to be collated corresponds to the titles listed in the “List of titles of books read at a stroke” ((A) -3), and the tag information is “pure literature”. Corresponding ((B) -4), the classification corresponds to “Bunko” ((C) -2).

  In this embodiment, whether or not the document content is handwritten document content in step S42 is determined as follows.

  That is, if the matching ratio of the title, tag information, and classification is a certain value or more in the matching table of the document content and the reading document content, it is determined that the document content is not a handwritten document content, that is, a reading document content. . Note that the document content may be determined to be the reading document content when at least one of the title, tag information, and classification of the document content matches the reading document content matching table.

  In addition, a matching table of handwritten document content in which titles, tag information, and classifications that are assumed to be handwritten document content are prepared in advance, and based on the matching ratio between the table and the document content, or the title of the document content, If at least one of the tag information and the classification matches the matching table of handwritten document content, it may be determined that the document content is handwritten.

  Alternatively, as another determination method, when the ratio of the rectangular area registered in step S34 in the flowchart of FIG.

  In this way, by comparing the title, tag information, and classification of the document content with the matching table, or by checking the ratio of the rectangular area, it is easily and accurately determined whether the content is handwritten document content or reading document content. can do.

  Alternatively, as another discrimination method, since the total number of pages of the document content for reading is generally relatively large, the content may be determined as the document content for reading when the total number of pages of the document content is a certain value or more. Thereby, it is possible to easily determine whether the content is handwritten document content or reading document content.

  Returning to FIG. 6, if it is determined in step S42 that the document content is handwritten (YES in step S42), the registered second power consumption is used for the document content in step S43. Return after assigning as possible power consumption. On the other hand, if it is determined in step S42 that the document content is not handwritten document content (NO in step S42), the process proceeds to step S44 to determine whether the document content is for reading.

  If it is determined that the document content is for reading (YES in step S44), in step S45, the registered first power consumption amount is allocated as the power consumption amount usable for the document content. Return. If it is determined that the document content is not a reading document content (NO in step S44), the allocation is suspended in step S46.

  In this way, the available power consumption is assigned to each document content, and the available power consumption is subtracted every time the document content is displayed and the page is switched or handwritten input is performed. . For document contents that are frequently displayed or handwritten, power is consumed each time. For example, the allocated power consumption may be insufficient to switch pages to the end.

  Whether or not the amount of power is insufficient is checked every time document content is displayed on the display unit 11.

  FIG. 8 is a flowchart showing processing when the power consumption allocated to such document content is insufficient. This process is also executed by the CPU 101 operating according to an operation program recorded on a recording medium such as the ROM 103.

  In step S11, it is determined whether the document content for which the amount of power is insufficient is handwritten document content. If it is not handwritten document content (NO in step S11), the power amount necessary for switching the remaining number of pages is calculated in step S12, and then the process proceeds to step S14. If the content is handwritten document content (YES in step S11), in step S13, the necessary electric energy is calculated from the remaining handwritten area, and then the process proceeds to step S14.

  In step S14, an assignable power consumption amount is obtained with an initial value of zero. First, in step S15, it is determined whether or not the required power amount has been reached. If not (NO in step S15), the power amounts allocated to other document contents are sequentially added and applied in step S16. In step S17, it is checked whether there is any remaining document content. If it exists (YES in step S17), the process returns to step S15. If it does not exist (NO in step S17), the process proceeds to step S18.

  In step S18, it is checked whether or not the document content for which power consumption is insufficient is handwritten document content. If it is not handwritten document content (NO in step S18), in step S19, if the amount of power is insufficient, a setting is made to prohibit page switching, and the process ends. If it is handwritten document content (YES in step S18), in step S20, if the amount of power is insufficient, a setting is made to prohibit handwriting input, and the process ends.

  If the required power amount has been reached in step S15 (YES in step S15), the process is terminated.

  In this way, when the allocated available power consumption is insufficient, the available power consumption allocated to other document contents is used appropriately, so the available power consumption for important document contents is insufficient. Even when doing so, it is possible to avoid situations where browsing or handwriting input becomes impossible.

  In addition, if the available power consumption allocated to other document contents cannot be used to solve the shortage of power consumption, page switching of reading document contents is prohibited, or handwriting of handwritten document contents is prohibited. Since the input is prohibited, the user can recognize that the power of the power supply unit 108 is insufficient.

  However, in this embodiment, as shown in FIG. 9, when a link destination exists in the document data (in the example of FIG. 9, for example, there is a link destination of “academic paper structure and its elements”). In order to increase the relevance with the linked document document, the document content is determined from the allocation target (step S16 in FIG. 8) for securing the power amount of the other document content for which the power amount is insufficient. The setting to remove is made. For this reason, the usable power consumption of the document content where the link destination exists is ensured, and the operation of connecting to the link destination and displaying the contents can be reliably performed. In addition, even if a link destination exists in the document data, if there is no document in the link destination, it is treated that the link destination does not exist.

  Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment.

  For example, the amount of power consumption that can be used is assigned to each document content, but the amount of handwriting varies depending on the user. Therefore, the actual power consumption during handwriting or page switching may be measured, and the allocated usable power consumption may be corrected based on the measured actual power consumption.

1 Electronic paper (display device)
2 Handwriting input device 11 Display unit 101 CPU
102 RAM
103 ROM
105 External Storage Device 106 Operation Unit 107 Power Management Unit 108 Power Supply Unit

Claims (9)

A power supply,
The display state of the data of any page in any one of the plurality of document contents each consisting of one page or a plurality of pages is held without consuming power of the power supply means, Display means for consuming power and switching the display page;
Handwriting means for consuming and displaying data on the screen of the display means by consuming the power of the power supply unit;
First power consumption determining means for determining in advance for each document content a first power consumption corresponding to the page switching amount of the document data;
Second power consumption determining means for predetermining for each document content a second power consumption corresponding to the amount of handwritten by the handwriting means;
Content type determination means for determining whether each document content is a reading document content or a handwritten document content;
When the content type determination unit determines that the document content is a document content for reading, the consumption that can be used for the document content using the first power consumption determined by the first power consumption determination unit. When it is determined that the document content is handwritten document content, the second power consumption determined by the second power consumption determination unit is used as the power consumption. Allocation means to allocate as quantity,
Management means for managing the power consumption of each document content based on the power consumption available for each document content assigned by the assigning means;
A display device comprising:   The display device according to claim 1, wherein the content type determination unit determines whether the document content is a reading document content or a handwritten document content based on the total number of pages of the document content.   The content type determination means determines whether the document content is a document content for reading depending on whether at least one of the title, tag information, and classification of the document content includes a document content for reading or a document content for handwriting. The display device according to claim 1, wherein the display device determines whether the content is a handwritten document content.   The content type determination means determines whether the document content is a document content for reading based on a ratio between a total value of the maximum rectangular area that can be handwritten on a blank page portion of each page and the total area of the document content The display device according to claim 1, wherein it is determined whether the content is a handwritten document content, and if the ratio of the total value to the entire area of the document content is equal to or greater than a certain value, the content is determined to be a handwritten document content.   5. The page switching is prohibited when the usable power consumption allocated to the document content determined as the reading document content by the allocation unit is insufficient. Display device.   5. The handwriting input is prohibited by the management unit when the usable power consumption allocated to the document content determined as the handwritten document content by the allocating unit is insufficient. Display device.   7. The management unit according to claim 1, wherein when the usable power consumption allocated to the document content by the allocation unit is insufficient, the management unit allocates the usable power consumption allocated to another document content. The display apparatus in any one. A power supply,
The display state of the data of any page in any one of the plurality of document contents each consisting of one page or a plurality of pages is held without consuming power of the power supply means, Display means for consuming power and switching the display page;
Handwriting means for consuming and displaying data on the screen of the display means by consuming the power of the power supply unit;
A power consumption management method implemented in a display device comprising:
A first power consumption amount determining step for predetermining for each document content a first power consumption amount corresponding to a page switching amount of the document data;
A second power consumption determining step for predetermining, for each document content, a second power consumption corresponding to the amount of handwritten by the handwriting means;
A content type determining step for determining whether each document content is a reading document content or a handwritten document content;
In the content type determination step, when it is determined that the document content is a reading document content, the first power consumption determined in the first power consumption determination step can be used for the document content. When it is determined that the document content is handwritten document content, the second power consumption determined in the second power consumption determination step is used as the power consumption. An allocation step to allocate as a quantity;
A management step for managing the power consumption of each document content based on the power consumption available for each document content allocated in the allocation step;
A power consumption management method comprising: A power supply,
The display state of the data of any page in any one of the plurality of document contents each consisting of one page or a plurality of pages is held without consuming power of the power supply means, Display means for consuming power and switching the display page;
Handwriting means for consuming and displaying data on the screen of the display means by consuming the power of the power supply unit;
In a display device computer equipped with
A first power consumption amount determining step for predetermining for each document content a first power consumption amount corresponding to a page switching amount of the document data;
A second power consumption determining step for predetermining, for each document content, a second power consumption corresponding to the amount of handwritten by the handwriting means;
A content type determining step for determining whether each document content is a reading document content or a handwritten document content;
In the content type determination step, when it is determined that the document content is a reading document content, the first power consumption determined in the first power consumption determination step can be used for the document content. When it is determined that the document content is handwritten document content, the second power consumption determined in the second power consumption determination step is used as the power consumption. An allocation step to allocate as a quantity;
A management step for managing the power consumption of each document content based on the power consumption available for each document content allocated in the allocation step;
Power management program to run.

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