KR20140086473A - Display device and method for displaying information by using the display device - Google Patents

Abstract

Disclosed is a display device configured to comprise: an electronic paper panel for displaying a predetermined object; a touch panel for detecting a user input for the predetermined object; a transparent display panel for displaying the user input; and a controller for acquiring information on a relative position between the predetermined object to be displayed on the electronic paper panel and the user input detected by the touch panel.

Description

Technical Field [0001] The present invention relates to a display device and an information display method using the display device.

The present invention relates to a display device for displaying user input for a predetermined object displayed on an electronic paper panel on a separate panel from an electronic paper panel, and an information display method using the same.

With the development of mobile devices such as smart phones, the e-book market is rapidly expanding. However, mobile devices such as smart phones are based on LCD or AMOLED displays, and when a user reads a book for a long time using a mobile device such as a smart phone, eye fatigue increases. Accordingly, in the e-book market, sales of e-book devices equipped with e-ink panels that solve the drawbacks of LCD or AMOLED displays have increased significantly. Unlike an LCD or AMOLED that uses a light source to express color, the e-ink display does not use a light source, so it can reduce eye fatigue.

In the e-ink panel, the white / black particles in the capsule are rearranged by electrodes applied to the panel, thereby displaying letters, pictures and the like. Like prints coated with ink on actual paper, the e-ink panel gives you the same feeling of seeing real prints because you only need to rearrange the white / black particles on the screen to represent letters or pictures. However, when the e-ink panel physically reorders the particles by changing the applied electrodes, the particles may not be completely rearranged. In order to eliminate this phenomenon, the e-ink panel resets all the particles at the time of page switching, re-arranges the particles by applying the desired electrode again This is called refresh.

Patent Document 1 described in the following prior art document relates to a writable electronic book, but it also acquires relative position information between a predetermined object displayed on an electronic paper and a user input displayed through a transparent display panel, The position of the user input is adjusted.

Korea Patent Publication No. 2009-0001201

SUMMARY OF THE INVENTION It is an object of the present invention to provide a display device having a separate display unit for displaying user input.

In addition, the present invention is intended to provide a display device for adjusting the position of a user input when a position of a predetermined object displayed on an electronic paper is changed.

The present invention provides a display device that provides a writing function on an electronic paper and an information display method using the same. The present invention also provides a display device for displaying a predetermined object displayed on an electronic paper and a predetermined object displayed on a transparent display panel in synchronization with each other, and an information display method using the same.

A display device according to an embodiment of the present invention includes: an electronic paper panel displaying an object; A touch panel for sensing user input to a predetermined object; A transparent display panel for displaying user input; And a controller for obtaining relative position information between a predetermined object displayed on the electronic paper panel and a user input sensed through the touch panel.

The controller of the display device according to an embodiment of the present invention compares first coordinate information on a position where a predetermined object is displayed and second coordinate information on a position where a user input is sensed to obtain relative position information have.

The control unit of the display device according to an embodiment of the present invention can adjust the position of the user input displayed on the transparent display panel based on the relative position information when the position where the predetermined object is displayed on the electronic paper panel is changed .

The control unit of the display device according to an embodiment of the present invention controls the size of a user input to a predetermined object displayed on the transparent display panel based on relative position information when the size of a predetermined object displayed on the electronic paper panel is changed, Can be adjusted.

The user input according to an embodiment of the present invention may include at least one of a region selection input, an emphasis display input, an underline input, and a handwriting input.

According to an embodiment of the present invention, there is provided an information display method including displaying an object on an electronic paper panel; Sensing a user input to a predetermined object through a touch panel; Obtaining relative position information between a predetermined object displayed on an electronic paper panel and a user input sensed through a touch panel; And adjusting and displaying the position of the user input on the transparent display panel based on the relative position information when the position where the predetermined object is displayed on the electronic paper panel is changed.

According to an embodiment of the present invention, there is provided a method of displaying information by comparing first coordinate information on a position where a predetermined object is displayed with second coordinate information on a position where a user input is sensed, .

According to an embodiment of the present invention, when the size of a predetermined object displayed on an electronic paper panel is changed, a size of a user input to a predetermined object is adjusted based on relative position information, And a step of displaying an image.

Through the disclosure of the present specification, it is possible to provide a display device having a separate display portion for displaying user input.

Also, with the disclosure of the present specification, it is possible to provide a display device that adjusts the position of a user input when a position at which a predetermined object displayed on an electronic paper is displayed is changed.

1 is a view showing a configuration of a general display device.
2 is a block diagram illustrating a configuration of a display device according to an embodiment of the present invention.
3 is a view for explaining a display device according to an embodiment of the present invention.
4 is a flowchart illustrating an information display method of a display apparatus according to an embodiment of the present invention.
5 is a diagram illustrating an example of a display device according to an exemplary embodiment of the present invention, which adjusts a position of a user input to a predetermined object and displays the adjusted position.
FIG. 6 is a view illustrating an example in which a display device related to an embodiment of the present invention adjusts the size of a user input to a predetermined object.

The terms used in this specification will be briefly described and the present invention will be described in detail.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

When an element is referred to as "including" an element throughout the specification, it is to be understood that the element may include other elements, without departing from the spirit or scope of the present invention. Also, the terms "part," " module, "and the like described in the specification mean units for processing at least one function or operation, which may be implemented in hardware or software or a combination of hardware and software .

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

1 is a view showing a configuration of a general display device.

1, the general display device 100 recognizes the electronic pen using the touch panel 20, and displays a text or a picture input through the electronic pen on the electronic paper panel 10. [ However, since the electronic paper panel 10 has to physically reorder the particles by structurally applying the electrodes, it is not easy for the electronic paper panel 10 to rearrange the particles at the same speed as the human hand moves. In addition, color electronic paper panels for color rendering require longer particle alignment times. Accordingly, there is a need for a display device that can speed up the response of a user to handwriting input, and provide the user with an experience of actually writing on a printed matter.

Hereinafter, a display device according to an embodiment of the present invention, which can overcome the disadvantages of the general display device 100 described above, will be described in detail with reference to FIG. 2 to FIG.

2 is a block diagram illustrating a configuration of a display device according to an embodiment of the present invention.

According to an embodiment of the present invention, the display device 200 may include an electronic paper panel 210, a touch panel 220, a transparent display panel 230, a control unit 240, and a memory 250. However, not all illustrated components are required. The display device 200 may be implemented by more components than the components shown, or the display device 200 may be implemented by fewer components.

Hereinafter, the components will be described in order.

The electronic paper panel 210 may include a top transparent electrode, a bottom electrode, and an electronic ink capsule. At this time, a white chip charged with an anode, and a black chip charged with a cathode may be disposed in the electronic ink capsule. When the lower electrode is charged with the anode, the white chip moves to the upper transparent electrode, and the electronic ink capsule becomes white. Conversely, when the lower electrode is charged to the cathode, the black chip moves to the upper transparent electrode, Will be black. On the other hand, in the case where half of the pixels in the lower electrode are charged to the cathode and the other half to the anode, black and white may appear simultaneously in one electronic ink capsule.

The electronic paper panel 210 according to an embodiment of the present invention may be a flexible display panel. That is, the electronic paper panel 210 may have flexibility to be folded and unfolded.

The electronic paper panel 210 may display the pre-stored content in the memory 250. The content according to an embodiment of the present invention may include text, pictures, characters, symbols, and the like. For example, the pre-stored content may include e-book content, cartoon content, photo content, and the like.

The touch panel 220 senses a user's touch gesture and can transmit information on the touch gesture to the control unit 240. [ The touch panel 220 may include various sensors for sensing a touch or a proximity touch. An example of a sensor for sensing a touch is a tactile sensor.

A tactile sensor is a sensor that detects the contact of a specific object with a degree or more that a person feels. The tactile sensor can sense various information such as the roughness of the contact surface, the rigidity of the contact object, and the temperature of the contact point. The touch panel 220 may be configured to detect not only the position of the touch input, the touch area, but also the touch pressure. In addition, the touch panel 220 can detect not only a real touch but also a proximity touch.

In this specification, the term "real-touch" refers to a case where a pointer is actually touched on the screen, and "proximity-touch" , But approaches a predetermined distance from the screen. In this specification, a pointer is a tool for touching or touching a specific portion of a displayed screen. Examples include electronic pens and fingers.

The user's touch gestures can include tap, touch & hold, double tap, drag, panning, flick, drag and drop, swipe, and the like.

The touch panel 220 may sense user input to a predetermined object displayed on the electronic paper panel 210. [ The user input according to an exemplary embodiment of the present invention may include at least one of an input for selecting a region, an input for highlighting, an underline input, and a handwriting input.

The transparent display panel 230 can display information input from the user through the touch panel 220. [ For example, the transparent display panel 230 may display user input for a given object displayed on the electronic paper panel 210.

The transparent display panel 230 may be a liquid crystal display, a thin film transistor-liquid crystal display, an organic light-emitting diode, a flexible display, And a display (3D display).

The control unit 240 typically controls the overall operation of the display device 200. For example, the control unit 240 can control the electronic paper panel 210, the touch panel 220, the transparent display panel 230, and the like by executing the programs stored in the memory 250.

The control unit 240 may obtain relative position information between a predetermined object displayed on the electronic paper panel 210 and a user input sensed through the touch panel 220. [ Here, the relative position information indicates information on which part of a predetermined object displayed on the electronic paper panel 210 the user input is detected.

The control unit 240 can obtain the relative position information by comparing the first coordinate information about the position where the predetermined object is displayed and the second coordinate information about the position where the user input is sensed. For example, when an under-line input is sensed through the touch panel 220, the control unit 240 compares the detected position of the under-line input with the position of the predetermined object on the electronic paper panel 210, (I.e., relative position information between the predetermined object and the user input) in the first syllable of the first sentence of the predetermined object.

The control unit 240 controls the position of the user input to the predetermined object displayed on the transparent display panel 230 based on the relative position information when the position on which the predetermined object is displayed on the electronic paper panel 210 is changed .

When the size of a predetermined object displayed on the electronic paper panel 210 is changed, the control unit 240 controls the size of a user input to a predetermined object displayed on the transparent display panel 230 based on the relative position information .

The memory 250 may store a program for processing and controlling the control unit 240 and may store data to be input / output (e.g., content, user input, a location where a predetermined object is displayed on the electronic paper panel 210, Relative position information between locations where user input is sensed on panel 220, and the like).

The memory 250 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (e.g., SD or XD memory), a RAM (Random Access Memory) SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM (Programmable Read- And an optical disc. In addition, the memory 250 may include a cloud server that performs a storage function.

3 is a view for explaining a display device according to an embodiment of the present invention.

As shown in FIG. 3, the touch panel 220, the transparent display panel 230, and the electronic paper panel 210 may have a layer structure. For example, when a predetermined text (e.g., Text on e-ink panel, Highlight / underline / memos on a transparent LCD panel) is displayed on the electronic paper panel 210, the touch panel 220 displays 'transparent LCD' You can sense highlighting input that emphasizes the part through shading.

At this time, the control unit 240 can display the highlighted display inputted through the touch panel 220 through the transparent display panel 230. [ The control unit 240 may store relative position information between a predetermined text and a user input (for example, an emphasis display input).

For example, the control unit 240 may compare the position where the highlighted display input is detected with the position where the predetermined text is displayed, and store information indicating that the highlighted display is input in the 'transparent LCD' of the predetermined text, in the memory 250.

When a predetermined text (e.g., Text on e-ink panel, Highlight / underline / memos on a transparent LCD panel) is displayed again on the electronic paper panel 210, the control unit 240 displays' transparent The transparent display panel 230 can be controlled so as to be highlighted on the area where the LCD 'is displayed. That is, the control unit 240 can synchronize the position of the predetermined text on the electronic paper panel 210 with the position of the emphasis display on the transparent display panel 230.

As described above, by using the electronic paper panel and the transparent display panel for displaying the user's input simultaneously, it is possible to provide a display device with improved response speed to user input.

Furthermore, even if the position at which a predetermined object is displayed is changed, the display device according to an embodiment of the present invention can appropriately change the user's input according to the position change of the object.

4 is a flowchart illustrating an information display method of a display apparatus according to an embodiment of the present invention.

Referring to FIG. 4, an information display method according to an embodiment of the present invention is comprised of steps that are processed in a time-series manner in the display device 200 shown in FIG. 2 and FIG. Therefore, it is understood that the contents described above with respect to the display device 200 shown in FIG. 2 and FIG. 3 are applied to the information display method of FIG. 4, even if omitted from the following description.

In step 410, the display device 200 may display a predetermined object on the electronic paper panel 210. [ At this time, in step 420, the display device 200 can detect a user input for a predetermined object through the touch panel 220. [ For example, the touch panel 220 may sense a user input that the user underlines, emphasizes, selects a particular area, handwrites, or adds a particular image to a given object.

In operation 430, the display device 200 may obtain relative position information between a predetermined object displayed on the electronic paper panel 210 and a user input sensed through the touch panel 220. For example, the display device 200 compares first coordinate information on a position where a predetermined object is displayed and second coordinate information on a position where a user input is sensed, That is, relative position information between a predetermined object and a user input.

In step 440, the display device 200 may determine whether the position at which an object is displayed on the electronic paper panel 210 has changed, when attempting to display the object again later.

In step 450, if it is determined that the position at which the predetermined object is displayed on the electronic paper panel 210 has been changed, the display device 200 displays, based on the relative position information, The position can be adjusted. On the other hand, when the size of a predetermined object displayed on the electronic paper panel 210 is changed, the display device 200 displays the user's position on the transparent display panel 230 based on the relative position information between the predetermined object and the user input. You can also adjust the size of the input.

At step 460, the display device 200 may display a user input for a predetermined position or scaled object on the transparent display panel 230.

That is, in the display device 200 according to an exemplary embodiment of the present invention, when the position where a predetermined object is displayed on the electronic paper panel 210 is not changed, the user of the predetermined object displayed on the transparent display panel 230 By adjusting the position of the user input to the predetermined object displayed on the transparent display panel 230 when the position of the predetermined object is changed on the electronic paper panel 210 without adjusting the position of the input, It is possible to synchronize the display position between user inputs to a predetermined object. In this regard, a more detailed description will be given with reference to FIGS. 5 and 6. FIG.

5 is a diagram illustrating an example of a display device according to an exemplary embodiment of the present invention, which adjusts a position of a user input to a predetermined object and displays the adjusted position.

As shown in FIG. 5 (a), text may be displayed on the electronic paper panel 210 having 1024 X 768 pixels. If the user makes a highlighting (highlight) on a specific part of the text (for example, a face clue indicating that the nostril is stimulated), the display device 200 displays the touch panel 220 (Highlights) entered by the user over the text. At this time, the display device 200 may display a highlight on the transparent display panel 230. The display device 200 can generate relative position information between the text and the highlight by mapping the highlighted position to a specific position of the text.

5B, when the size of the text decreases and the position at which the text is displayed is changed, the display device 200 displays the new position on the transparent display panel 230 using the relative position information between the text and the highlight, You can highlight the coordinates.

That is, the display device 200 may be displayed on a transparent display (not shown) so that it may be highlighted on a particular portion of the text (e.g., the nose opening is a facial clue indicating that the stimulus has been received) The position of the highlight displayed on the panel 230 can be adjusted. In addition, the display device 200 can also adjust the size of the highlight displayed on the transparent display panel 230.

FIG. 6 is a view illustrating an example in which a display device related to an embodiment of the present invention adjusts the size of a user input to a predetermined object.

As shown in Fig. 6 (a), text may be displayed on the electronic paper panel 210. Fig. If the user inputs a memo (e.g., test) 600 in a predetermined area of the text, the display device 200 detects the memo 600 entered by the user through the touch panel 220 can do. At this time, the display device 200 can display the memo 600 on the transparent display panel 230. The display device 200 maps the position where the memo 600 is inputted on the touch panel 220 and the specific position of the text on the electronic paper panel 210 to obtain the relative position information between the text and the memo 600 Lt; / RTI >

6 (b), when the size and position of the text are changed, the display device 200 uses the relative position information between the text and the memo 600 to display the new coordinates on the transparent display panel 230 A new size memo 600 can be displayed.

That is, the display device 200 displays the position and size of the memo 600 displayed on the transparent display panel 230 so that the memo 600 can be displayed in a specific area of the text, Can be adjusted.

The method according to an embodiment of the present invention can be implemented in the form of a program command which can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, It belongs to the scope of right.

200: display device
210: electronic paper panel
220: Touch panel
230: Transparent display panel
240:
250: Memory

Claims (8)

An electronic paper panel displaying an object;
A touch panel for sensing user input to the predetermined object;
A transparent display panel for displaying the user input; And
And a controller for obtaining relative position information between a predetermined object displayed on the electronic paper panel and a user input sensed through the touch panel.
The apparatus of claim 1,
And obtains the relative position information by comparing first coordinate information on a position where the predetermined object is displayed with second coordinate information on a position where the user input is sensed.
The apparatus of claim 1,
Wherein the controller controls the position of the user input displayed on the transparent display panel based on the relative position information when the position of the predetermined object is changed on the electronic paper panel.
The apparatus of claim 1,
Wherein the control unit controls the size of the user input to the predetermined object displayed on the transparent display panel based on the relative position information when the size of the predetermined object displayed on the electronic paper panel is changed, .
The method of claim 1,
A region selection input, a highlight input, an underline input, and a handwriting input.
Displaying an object on an electronic paper panel;
Sensing a user input to the predetermined object through a touch panel;
Obtaining relative position information between the predetermined object displayed on the electronic paper panel and the user input sensed through the touch panel; And
And adjusting the position of the user input on the transparent display panel based on the relative position information when the position of the predetermined object is changed on the electronic paper panel. .
7. The method of claim 6, wherein the obtaining of the relative position information comprises:
And comparing the first coordinate information with respect to a position at which the predetermined object is displayed and the second coordinate information with a position at which the user input is sensed, thereby obtaining the relative position information.
The information display method according to claim 6,
Controlling the size of the user input to the predetermined object based on the relative position information and displaying the adjusted size on the transparent display panel when the size of the predetermined object displayed on the electronic paper panel is changed Wherein said information display method comprises the steps of:

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