JP2008098828A - Portable terminal equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To keep excellent image quality of images to be outputted to the outside of portable terminal equipment. <P>SOLUTION: The portable terminal equipment comprises: a terminal display part 16 for displaying information in the present terminal equipment; an image display processing part 15 for performing processing of displaying images on the terminal display part 16; and a projection display part 18 for outputting the images comprising a large number of pixels on a screen larger than the screen of the terminal display part 16. In the portable terminal equipment, the projection display part 18 projects and displays the images on the outside of the terminal equipment. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a mobile terminal device such as a mobile phone or a PDA (Personal Digital Assistant) having a terminal display unit for displaying information in the terminal device itself, and a close-up of an image displayed on the terminal display unit. The present invention relates to a portable terminal device provided with a function to perform.

  2. Description of the Related Art Conventionally, in portable communication terminals such as PDAs and mobile phones, the front surface of a liquid crystal display unit is required because it is convenient if a display of an acquired web image or the like can be easily projected on a wall surface and confirmed by a plurality of people. Patent Document 1 discloses a portable communication terminal that projects a display image of a liquid crystal display unit onto a wall surface or the like through an optical lens by illuminating with a light source from the back of the liquid crystal display with an optical lens arranged on the side. Yes.

Patent Document 2 discloses an LED unit, a camera unit that converts an optical image into an electrical signal to generate image data, and camera imaging optics for forming an optical image to be imaged on the camera unit. System and a liquid crystal panel unit for modulating the light emitted from the LED unit, and the camera imaging optical system projects and projects the light image emitted from the liquid crystal panel unit on an external projection surface For this reason, an electronic apparatus that is also used as a projection imaging optical system is disclosed.
Japanese Patent Application No. 2005-260550 (FIG. 1, 0021-0025) Japanese Patent Application No. 2006-67469 (FIG. 1, 0013, 0014)

  However, in the above device, since the image displayed on the liquid crystal panel is projected, the projected screen S2 is larger than the screen S1 such as the liquid crystal display unit as shown in FIG. Since there is no change and the size of one pixel is increased, an image with reduced image quality is only projected.

  Therefore, although a large screen image can be viewed, there is a problem that an image with a low resolution and a low image quality is viewed. The present invention has been made in view of the problems in the conventional portable terminal device, and an object of the present invention is to provide a portable terminal device capable of maintaining good image quality of an image output to the outside of the portable terminal device. It is to be.

  The portable terminal device according to the present invention includes a terminal display unit for displaying information on the terminal device, an image display processing unit for performing processing for displaying an image on the terminal display unit, and a screen larger than the screen of the terminal display unit. And an image output means for outputting an image composed of a large number of pixels on a screen.

  In the mobile terminal device according to the present invention, the image output means includes a projection display unit that projects and displays an image outside the terminal device.

  A portable terminal device according to the present invention is associated with a terminal display unit for displaying first information, an image display processing unit for performing processing for displaying an image on the terminal display unit, and the first information. And image output means for outputting second information having a different number of pixels from the first information.

  In the mobile terminal device according to the present invention, the image display processing unit displays a part of the image output by the image output unit, a reduced image, or a related description on the terminal display unit.

  In the mobile terminal device according to the present invention, the image display processing unit displays a list related to the image output by the image output unit on the terminal display unit, and an operation unit for performing a selection operation regarding the list of the display unit, And an image management unit that performs output management of a corresponding image according to an operation.

  Since the mobile terminal device according to the present invention includes image output means for outputting an image having a larger screen than the screen of the terminal display unit and having a large number of pixels, the mobile terminal device has a larger screen than the screen of the terminal display unit. An image composed of the number of pixels is output, and an image with higher image quality can be provided as compared with a case where the image on the display unit is enlarged and projected.

  A mobile terminal device according to an embodiment of the present invention will be described below with reference to the accompanying drawings. In the drawings, the same components are denoted by the same reference numerals and redundant description is omitted. FIG. 1 shows the configuration of a mobile phone 10 according to the first embodiment.

  In the mobile phone 10, for example, a control unit 20 configured by a CPU is configured to control each unit, and a call circuit unit 21 and a wireless communication unit 22 are connected to the control unit 20. A speech transmission unit 23 such as a microphone and a reception unit 24 such as a speaker are connected to the speech circuit unit 21, and the voice input from the speech transmission unit 23 is digitized and encoded and multiplexed by the speech circuit unit 21. It is sent to the wireless communication unit 22 via the unit 20. The wireless communication unit 22 up-converts the encoded and multiplexed audio signal for transmission and transmits it from the antenna 25 as a radio signal.

  Further, the wireless communication unit 22 takes in a signal via the antenna 25, down-converts it, and sends it to the control unit 20. The control unit 20 sends the received voice signal to the call circuit 21 if the destination is the own device. The call circuit 21 decodes the received voice signal and separates it from the multiplexed signal, and outputs it from the receiver 24 as an analog voice signal.

  Further, the image processing unit 15 is connected to the control unit 20, and image information captured from the server by the Web browser provided in the control unit 20 via the wireless communication unit 22 is processed by the image processing unit 15. Then, the data is sent to the terminal display unit 16 as display data for the terminal display unit 16 composed of an LCD or the like. As a result, an image corresponding to the display data is displayed on the terminal display unit 16.

  In the present embodiment, a camera unit 26 and a radio / TV receiving unit 28 having a TV antenna 27 are connected to the control unit 20. An image captured by the camera unit 26 is sent to the image processing unit 15 via the control unit 20, and is sent to the terminal display unit 16 as display data for the terminal display unit 16. The image data received by the radio / TV receiver 28 via the TV antenna 27 is subjected to necessary processing such as down-conversion and demultiplexing at the radio / TV receiver 28, and the image processor via the controller 20. 15 is sent to the terminal display unit 16 as display data for the terminal display unit 16.

  A memory unit 11 is connected to the control unit 20, and for example, image data captured by the camera unit 26, image data copied from another medium, and the like can be stored. The image data can be sent to the image processing unit 15 via the control unit 20, and the sent image data is sent to the terminal display unit 16 as display data for the terminal display unit 16 in the image processing unit 15. . The control unit 20 includes a mail function (mail software), and image data and the like in the memory unit 11 can be transmitted from the wireless communication unit 22 via the antenna 25 via the control unit 20.

  The key operation unit 13 connected to the control unit 20 includes various function keys, dial keys, and the like. The user operates the required keys of the key operation unit 13 to operate the above mail function and Web browser. Reception by the radio / TV receiver 28, imaging by the camera unit 26, and telephone transmission / reception can be performed.

  Furthermore, in the present embodiment, a projection display unit 18 that constitutes an image output unit that outputs an image is connected to the control unit 20. The projection display unit 18 outputs an image having a larger screen than the screen of the terminal display unit 16 and a larger number of pixels than the screen of the terminal display unit 16. Here, the screen of the terminal display unit 16 is used. A transmissive LCD (liquid crystal display) or DMD (digital micromirror device) having a larger number of pixels can be provided. Therefore, the pixel size of the projection display unit 18 is equal to or smaller than the pixel size of the terminal display unit 16, and the LCD size of the projection display unit 18 is larger than the size of the terminal display unit 16.

  A light source 17 and an optical lens 19 are provided adjacent to the projection display unit 18. The light source 17 is provided on the front side of the housing with respect to the projection display unit 18, and the rear surface side of the housing is provided with respect to the projection display unit 18. Optical lenses 19 are provided respectively. Then, the projection display unit 18 is irradiated from the surface side by the light source 17, a light beam corresponding to the image is emitted, is projected onto the screen 60 with a predetermined spread by the optical lens 19, and is displayed on the screen 60 on the terminal display unit. An image that is larger than 16 screens and that has a larger number of pixels than the screen of the terminal display unit 16 is displayed. The projection display unit 18 can have a distortion correction function of the optical lens 19.

  The control unit 20 receives an instruction input from the key operation unit 13 and controls output of image information to the projection display unit 18. Thereby, the image data stored in the memory unit 11, the image data captured by the camera unit 26, the image data captured from the wireless communication unit 22, and the image data received by the radio / television reception unit 28 are converted into the control unit 20. To the projection display unit 18. The image data sent to the projection display unit 18 is image data capable of displaying an image having a larger screen than the screen of the terminal display unit 16 and a larger number of pixels than the screen of the terminal display unit 16.

  As shown in FIG. 2, the mobile phone 10 configured as described above includes a configuration in which a first housing 51 and a second housing 52 are coupled to each other via a hinge 53 so as to be opened and closed. A key operation unit 13 and a transmitter 23 are provided inside the first housing 51, and a terminal display unit 16 and a receiver 24 are provided inside the second housing 52.

  A camera unit 26 is provided at the upper end portion outside the second housing 52, and a projection display unit 18 (including the light source 17 and the optical lens 19) is provided near the hinge 53 at the lower end portion of the second housing 52. The imaging direction of the camera unit 26 and the projection direction of the projection display unit 18 are in front of the outside of the second housing 52, and the image captured by the camera unit 26 can be captured while visually checking on the terminal display unit 16. In addition to the image projected by the projection display unit 18, the image displayed on the terminal display unit 16 can be visually confirmed. The position where the projection display unit 18 (including the light source 17 and the optical lens 19) is provided may be in the vicinity of the camera unit 26 as indicated by (18) in FIG. Further, a second terminal display unit (such as a sub LCD) may be provided outside the second housing 52. For example, the second terminal display unit has a size smaller than the size of the terminal display unit 16.

  In the mobile phone configured as described above, for the images displayed on the terminal display unit 16 and the projection display unit 18, for example, the flowcharts of FIGS. The image is displayed by the process shown in FIG. When the display by the projection display unit 18 is instructed, a menu indicating where the image to be displayed is taken out (herein, the takeout source) is displayed on the screen 16A of the terminal display unit 16 under the control of the control unit 20 (FIG. 5A). And the same image with the increased number of pixels displayed on the projection display unit 18 is displayed on the screen 60 (S11). Of course, at this stage, the display on the screen 60 may not be performed. The contents of the menu displayed on the terminal display unit 16 can be scrolled by a scroll operation.

  After step S11, the control unit 20 waits for a selection input (S12). When the selection input is made, the first image is taken out from the selected extraction source and is displayed on the screen 60 from the projection display unit 18 in FIG. 5B. It is displayed as shown (S13). On the screen 16A of the terminal display unit 16 in step S13, the titles of images that can be selected at the selected extraction source are displayed as shown in FIG. 5B.

  Following step S13, the control unit 20 waits for one of the titles to be selected (S14). When one title is selected, the image corresponding to the title is read from the corresponding extraction source and displayed on the projection display unit 18. Thus, a corresponding image having a large number of pixels is displayed on the screen 60 by the projection display unit 18, and the screen 16A of the terminal display unit 16 takes out the image to be displayed together with the title of the image that can be selected at the extraction source. The original is displayed (S15).

  Following step S15, the control unit 20 requests that another title is selected from the title menu (S16), or another selection source is selected (S17), and a part of the request is displayed on the terminal display unit 16. It is monitored whether a request for displaying a reduced image on the terminal display unit 16 has been input (S19), or a request for displaying a comment such as a description on the terminal display unit 16 has been input (S20).

  In step S16, when it is detected that another title has been selected from the title menu, the control unit 20 reads out the image corresponding to the title from the corresponding extraction source and gives it to the projection display unit 18, whereby projection is performed. A corresponding image having a large number of pixels is displayed on the screen 60 by the display unit 18 (S15).

  In step S17, when it is detected from the menu that a selection input for another extraction source has been made, the control unit 20 extracts an image from the selected extraction source and displays it on the screen 60 from the projection display unit 18. (S13). In step S18, when it is detected that a request for displaying a part on the terminal display unit 16 is input, the control unit 20 displays a part of the image displayed on the screen 60 (for example, a screen in advance). 6) is sent to the image processing unit 15, and an image as shown in FIG. 6 is displayed on the screen 16A of the terminal display unit 16 (S21). In this case, a necessary portion of the image displayed on the screen 16A of the terminal display unit 16 may be displayed by scrolling.

  Subsequent to step S21, it waits for input of restoration to the menu screen or termination (S24). When restoration to the menu screen is selected, the process returns to step S15, and when termination is selected, display by the projection display unit 18 is performed. The display is stopped, the display on the terminal display unit 16 is switched to the standby screen (S25), and the process ends.

  In step S19, when it is detected that a request for displaying a reduced image on the terminal display unit 16 is input, the control unit 20 converts the display data of the image displayed on the screen 60 to the image processing unit 15. 7 to generate reduced image data corresponding to the screen 16A of the terminal display unit 16 by thinning out the pixel data, and display the reduced image as shown in FIG. 7 on the screen 16A of the terminal display unit 16 (S22). .

  Subsequent to step S22, the process waits for input of restoration or termination to the menu screen (S24). When restoration to the menu screen is selected, the process returns to step S13. When termination is selected, display by the projection display unit 18 is performed. The display is stopped, the display on the terminal display unit 16 is switched to the standby screen (S25), and the process ends.

  Further, in step S20, when it is detected that a request for displaying a comment such as a description on the terminal display unit 16 is input, the description information corresponding to the image (shooting date / time, image number, file name, page, shooting location, etc.) ) Is stored in the memory unit 11, the control unit 20 takes out the corresponding explanatory information from the memory unit 11 and sends it to the image processing unit 15, and displays an explanatory comment as shown in FIG. 8 on the screen of the terminal display unit 16. It is displayed on 16A (S23).

  Subsequent to step S23, it waits for input of restoration or termination to the menu screen (S24). When restoration to the menu screen is selected, the process returns to step S13. When termination is selected, display by the projection display unit 18 is performed. The display is stopped, the display on the terminal display unit 16 is switched to the standby screen (S25), and the process ends.

  Comments such as explanations may be displayed in the area 61 on the screen 60 by the projection display unit 18 as shown in FIG. 9 instead of being displayed on the screen 16A of the terminal display unit 16. Also, comments such as explanations may be displayed on the terminal display unit 16 and displayed on the screen 60 by the projection display unit 18.

  As described above, in this embodiment, since the display on the terminal display unit 16 and the display on the projection display unit 18 are controlled to be linked, the display on the terminal display unit 16 is performed while viewing the display on the projection display unit 18 with a large number of people. Thus, it is convenient when the operator selects and explains the display image by the projection display unit 18, and also has an effect that a high-quality large-screen image can be displayed and viewed by a large number of people.

  FIG. 10 shows a configuration diagram of a mobile phone 10A according to the second embodiment. In this embodiment, a second memory unit 12 is provided in addition to the first memory unit 11. The first memory unit 11 stores display data for display of the terminal display unit 16, and the second memory unit 12 stores data for display by the projection display unit 18. The display data for display of the terminal display unit 16 stored in the first memory unit 11 and the display data for the projection display unit 18 stored in the second memory unit 12 are associated with each other. It may be left. According to this, for example, image information captured by a Web browser from a server, and an image having a large number of pixels and a thumbnail image thereof may be obtained as a pair and obtained as image data. Are associated with each other in the memory table of the control unit 20, an image having a large number of pixels is stored in the second memory unit 12, and its thumbnail image is stored in the first memory unit 11. In this case, the corresponding image data is read out using the memory table and used for display by the projection display unit 18 and display by the terminal display unit 16. Therefore, according to this configuration, when displaying an already stored image, since display data is prepared for each display destination, the pixel processing unit 15 can smoothly perform the thinning process while displaying the image. Is displayed. Other configurations and operations are the same as those in the first embodiment.

  FIG. 11 shows a configuration example of a system including the mobile phone 10B according to the third embodiment and the projection unit 30 connected thereto. In this configuration example, the light source unit 17, the projection display unit 18, and the optical lens 19 are accommodated in a separate housing from the mobile phone 10B. Projection unit 30 and mobile phone 10B may include a locking unit that is integrally coupled to each other. The connection between the control unit 20 and the projection display unit 18 is not limited to a wired cable, but can be performed by radio waves, Bluetooth, or the like. The other configuration is the same as that of the first embodiment. For this reason, it is convenient for an operator to select and explain a display image by the projection display unit 18 by displaying on the terminal display unit 16 while viewing the display by the projection display unit 18 by a large number of people, and a high-quality large screen. The effect of being able to display a large number of images and view with a large number of people is exhibited. Further, since the projection unit 30 can be separated from the mobile phone 10B, only the projection unit 30 needs to be arranged toward the screen 60 or the projection wall, and there is less need to consider the position of the mobile phone 10B. It is easy to use.

  FIG. 12 shows a configuration example of a system including the mobile phone 10C according to the fourth embodiment and the image display device 40 connected to the mobile phone 10C. In the cellular phone 10 </ b> C, an interface 29 is connected to the control unit 20, and the control unit 20 and the interface 29 have a larger screen than the screen of the terminal display unit 16 and a larger number of pixels than the screen of the terminal display unit 16. Image output means for outputting the image to be processed.

  On the other hand, the image display device 40 is a display device including a display unit 41 such as an LCD, a display control unit 42 that controls the display unit 41, and an interface 43 that receives image information sent from the mobile phone 10C side. A television receiver including a terminal. The control unit 20 and the interface 29 output image information such as RGB, and output image information composed of the number of pixels of the screen corresponding to the specification of the display unit 41 of the image display device 40. is there. The connection between the interface 29 and the interface 43 is not limited to a wired cable, and can be performed wirelessly. The other configuration is the same as that of the first embodiment.

  According to the system configured as described above, image information such as RGB is transmitted from the control unit 20 and the interface 29 to the image display device 40 side, and this image signal is transmitted via the interface 43 to the display control unit. 42, converted into display data, and display control of the display unit 41 is performed, and an image having a larger screen than the screen of the terminal display unit 16 and a larger number of pixels than the screen of the terminal display unit 16 is displayed on the display unit. 41 is projected. This is convenient for an operator to select and explain a display image on the display unit 41 by displaying on the terminal display unit 16 while viewing the display with a large number of people, and displays a high-quality large-screen image. The effect is that it can be viewed by a large number of people. Note that the interface 29 provided in the mobile phone 10 is provided in the first embodiment, and can be displayed by the projection display unit 18 and can be connected to the image display device 40 outside. You can also Further, the image information to be displayed may be a moving image as well as a still image.

  In the above embodiments, a mobile phone is taken as an example of the mobile terminal device. However, the present invention is not limited to this, and the configuration of the present invention can be applied to PDAs, notebook computers, mobile televisions, game machines, and the like. Is possible.

1 is a block diagram showing a configuration of a mobile phone according to a first embodiment of the present invention. 1 is a perspective view showing an external appearance of a mobile phone according to a first embodiment of the present invention. The flowchart for demonstrating operation | movement of the mobile telephone based on 1st Example of this invention. The flowchart for demonstrating operation | movement of the mobile telephone based on 1st Example of this invention. The figure which shows the example of the image projected on a terminal display part and a screen with the mobile telephone which concerns on 1st Example of this invention. The figure which shows the example of the image projected on a terminal display part and a screen with the mobile telephone which concerns on 1st Example of this invention. The figure which shows the example of the image projected on a terminal display part and a screen with the mobile telephone which concerns on 1st Example of this invention. The figure which shows the example of the image projected on a terminal display part and a screen with the mobile telephone which concerns on 1st Example of this invention. The figure which shows the example of the image projected on a terminal display part and a screen with the mobile telephone which concerns on 1st Example of this invention. The block diagram which shows the structure of the mobile telephone based on 2nd Example of this invention. The block diagram which shows the structure of the mobile telephone based on the 3rd Example of this invention. The block diagram which shows the structure of the mobile telephone based on the 4th Example of this invention. The figure which shows the example of the image projected on a terminal display part and a screen with the mobile telephone which concerns on a prior art example.

Explanation of symbols

10, 10A to 10C Cellular phone 11 Memory unit 12 Second memory unit 13 Key operation unit 15 Image processing unit 16 Terminal display unit 17 Light source 18 Projection display unit 19 Optical lens 20 Control unit 21 Communication circuit unit 22 Wireless communication unit 23 Speaker 24 Receiver 25 Antenna 27 Television antenna 28 Radio / TV receiver 29, 43 Interface 30 Projector 40 Image display device 41 Display unit 42 Display control unit

Claims (5)

A terminal display unit for displaying information in the terminal device;
An image display processing unit for performing processing for displaying an image on the terminal display unit;
An image output means for outputting an image having a larger screen than the screen of the terminal display unit and having a large number of pixels. The mobile terminal device according to claim 1, wherein the image output means includes a projection display unit that projects and displays an image outside the terminal device. A terminal display unit for displaying the first information;
An image display processing unit for performing processing for displaying an image on the terminal display unit;
An image output unit that outputs second information that is associated with the first information and has a different number of pixels from the first information. The mobile terminal according to any one of claims 1 to 3, wherein the image display processing unit displays a part of the image output by the image output unit, a reduced image, or a related description on the terminal display unit. apparatus. The image display processing unit displays a list of images output by the image output unit on the terminal display unit,
An operation unit for performing a selection operation on the list of the display unit;
The mobile terminal device according to claim 1, further comprising: an image management unit that performs output management of a corresponding image according to an operation of the operation unit.

Images