JP2005184369A - Mobile phone terminal and contents display method and program thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a camera attached mobile phone terminal or the like for enhancing poor visibility due to a small sized display screen of the mobile phone terminal without the need for increasing the size of the mobile phone terminal and improving the information share of contents displayed on the display screen. <P>SOLUTION: The projection section 2 of the mobile phone terminal is provided with: a light source 21; reflection plates A22, B23; a display form conversion section 24; and a magnification element 25. The light source 21 is used also for a camera strobe to emit light to displayed contents. The reflection plates A22, B23 change an optical path of the light outputted from the light source. The display form conversion section 24 converts the contents displayed on the display section into a display form proper to external projection. The magnification element 25 emits the light whose optical path is changed by the reflection plates A22, B23 to the projection contents converted by the display form conversion section 24 to externally display the contents with magnification. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mobile phone terminal, and more particularly to an external display function of content in a mobile phone terminal.

  With the widespread use of mobile phone terminals, opportunities for obtaining various contents from information providers via the Internet and the like are increasing. The content obtained from this information provider can be shared not only by individuals but sometimes by many people, or for improved visibility due to the small screen on mobile phone terminals, the display content can be enlarged and projected. Yes. When enlarging and projecting an image on a liquid crystal display screen of a mobile phone terminal, the projection lens is moved to a position that covers the front surface of the liquid crystal display unit, and the image on the liquid crystal display unit is externally connected to the wall surface via the projection lens. Is projected. In this case, a light source lamp for projection is provided on the back side of the liquid crystal display unit. (For example, refer to Patent Document 1). Further, the received information is projected on the projection screen by the projection light through the projection microcomputer and the projection generator (see, for example, Patent Document 2).

JP 2001-313702 (paragraph numbers 0035 and 0036 and FIG. 3) Japanese Patent Laying-Open No. 2003-18256 (paragraph numbers 0004 to 0006 and FIG. 1)

  In the conventional display of content such as character information or images in a mobile phone terminal, although the display content is enlarged and projected and displayed, it is necessary to provide a dedicated light source for the projection display in the mobile phone terminal. This hinders miniaturization of the terminal itself. In recent mobile phone terminals, it is desired to reduce the size as much as possible in order to cope with various new functions.

  An object of the present invention is not only to improve the visibility of content displayed on a mobile phone terminal and to allow the display content to be shared among a plurality of people, but also to use both the camera strobe and the projection light source of the terminal itself. It is another object of the present invention to provide a mobile phone terminal and a content display method thereof that can further reduce the size of the terminal.

  The present invention according to claim 1 is a mobile phone terminal with a camera having a control unit that controls a projection unit that enlarges and projects the content displayed on the display unit of the terminal itself to the outside. The optical path control is performed so that the light from the light source that is also used as the camera strobe is used for projection display and the other is used for the camera strobe.

  The present invention described in claim 2 is a mobile phone terminal with a camera having a control unit that controls a projection unit that enlarges and projects the content displayed on the display unit of the terminal, and the control unit Then, control is performed to enlarge and display the content displayed on the display unit at the time of content enlargement projection by changing the optical path and irradiating light from a light source that also serves as a camera strobe.

  The present invention described in claim 3 is a mobile phone terminal with a camera having a control unit that controls a projection unit that enlarges and projects the content displayed on the display unit of the terminal itself to the outside. Then, the content displayed on the display unit at the time of content enlargement projection is irradiated with light that does not change the optical path from a light source that also serves as a camera strobe, and control is performed to enlarge and display the content to the outside.

  The present invention according to claim 4 is a mobile phone terminal with a camera having a projection unit that enlarges and projects the content displayed on the display unit of the terminal itself to the outside, wherein the projection unit displays A light source that also serves as a camera strobe to irradiate content, an optical path changing unit that changes an optical path of light output from the light source, and externally irradiating the projection content with the light changed by the optical path changing unit And an enlarging element for enlarging display.

  According to a fifth aspect of the present invention, in the fourth aspect of the invention, a display format conversion unit that converts the display format to a display format suitable for external projection is provided.

  According to a sixth aspect of the present invention, in the fifth aspect, the display format conversion unit also serves as a rear display unit that is arranged on the rear surface of the terminal itself and performs display.

  According to a seventh aspect of the present invention, in the fourth aspect, the optical path changing unit includes a first reflecting plate that receives and reflects light from the light source, and light that is reflected by the first reflecting plate. And a second reflector that causes the display format converter to receive light.

  According to an eighth aspect of the present invention, in the seventh aspect, the first reflector is slidably or rotatably disposed so as to be used as a strobe at the time of photographing with a camera built in the terminal. Is done.

  The present invention according to claim 9 is a content display method in a mobile phone terminal that enlarges the content displayed on its own terminal and projects and displays it on the outside, and whether or not the content is displayed on the liquid crystal display unit of its own terminal A step of determining whether or not the content is displayed, a step of determining whether or not to display the displayed content, and a light source that also serves as a camera strobe when the projection display is selected for operation. The step of causing the light from the light source to enter the movable first reflector, the step of causing the light from the first reflector to pass through the second reflector, and the content to the first reflector. Irradiating light through the reflector 2 and magnifying it with a magnifying element and projecting it outside.

  According to a tenth aspect of the present invention, in the ninth aspect of the present invention, the method includes the step of converting the display of the content into a format suitable for projection.

  The present invention described in claim 11 includes the step of correcting left-right reversal and up-down reversal as the display conversion in claim 10.

  According to a twelfth aspect of the present invention, in the ninth aspect, the method includes a step of rotating the first reflecting plate about a slide or a fulcrum.

  According to a thirteenth aspect of the present invention, there is provided a program for causing a computer to execute a content display process in a mobile phone terminal that enlarges the content displayed on its own terminal and projects and displays it on the outside. A process for determining whether or not the content is displayed, a process for determining whether or not to project the displayed content when the content is displayed, and a camera flash when the projection display is selected for operation. A process of turning on a light source that also serves as a light source, a process of allowing light from the light source to enter a movable first reflector, and a process of causing light from the first reflector to pass through the second reflector And causing the computer to execute a process of irradiating the content with light through the second reflecting plate, enlarging it with a magnifying element, and projecting it outside.

  In a fourteenth aspect of the present invention, the computer according to the thirteenth aspect causes the computer to execute a process of displaying and converting the content into a format suitable for projection.

  According to a fifteenth aspect of the present invention, the computer according to the fourteenth aspect causes the computer to execute processing for correcting left-right reversal and vertical reversal as the display conversion.

  In a sixteenth aspect of the present invention, the computer according to the thirteenth aspect causes the computer to execute a process of rotating the first reflecting plate about a slide or a fulcrum.

  According to the present invention, the content displayed on the main body display unit is converted into a display format suitable for projection by the display format conversion unit. The content whose display format has been converted is irradiated with a light source that also serves as a camera strobe, enlarged by a magnifying element, and projected onto a wall or the like. By sharing the projection light source with the camera strobe, the mobile phone terminal can be made smaller.

  The present invention is configured such that the strobe light source and the projection display light source of the camera-equipped mobile phone terminal can be shared. Thereby, not only the improvement of the visibility by the enlarged projection display of the content displayed on the display unit of the mobile phone terminal and the sharing of the content content are realized, but also the mobile phone terminal can be further downsized.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a diagram showing a projection example of image content in the embodiment of the present invention. Referring to FIG. 1, the mobile phone terminal 10 includes a main body liquid crystal display unit 1, a projection unit 2, and a rear liquid crystal display unit 4. The content enlarged by the projection unit 2 is projected in the form of a projection screen 2a on a wall surface or the like. FIG. 1 shows a characteristic part of the cellular phone terminal of the present invention, and illustration of an internal configuration of a control unit and the like for controlling the entire cellular phone terminal is omitted. Moreover, although the example which displays the image was shown in FIG. 1, the display of character information may be sufficient.

  FIG. 2 is a diagram showing the configuration of the projection unit in FIG. Referring to FIG. 2, the projection unit 2 includes a light source 21, a reflection plate A22, a reflection plate B23, a display format conversion unit 24, and a magnifying element 25 such as a lens. The light source 21 also serves as a camera strobe to irradiate the displayed content with light. Reflector A22 and reflector B23 change the optical path of the light output from light source 21. The first reflecting plate A22 receives light from the light source 21 and reflects it to the reflecting plate B23. The reflector B23 causes the light reflected by the reflector 22 to enter the display format converter 24. The reflector A is slidably or rotatably disposed so that the light source 21 can be used as a strobe when photographing with a camera built in the terminal.

  The display format conversion unit 24 converts to a display format suitable for external projection and also serves as a rear liquid crystal display unit. The display format conversion unit 24 normally corrects an image displayed on the liquid crystal display unit so that the image is optimally viewed by human eyes when viewed on a wall or the like. For example, left / right inversion, up / down inversion correction, distortion correction, contour correction, and the like are performed. The magnifying element 25 irradiates the projection content converted by the display format conversion unit 24 with the light changed by the reflecting plate A22 and the reflecting plate B23, and displays the enlarged content outside. A control unit (not shown) corresponding to the computer of the mobile phone terminal reads an operation control program stored in advance in a built-in memory (not shown), and controls each part of the terminal including the projection unit 2.

  FIG. 2 shows an example in which the light changed by the reflector A22 and the reflector B23 is used for content projection. However, the light passing through these reflecting plates may be used as a camera strobe, and light that does not pass through these reflecting plates may be irradiated for content projection. Since light from the light source 21 is used for projection display and the other is used for a camera strobe, the optical path control may be performed so as to change the direction of light emitted from the light source, for example. Further, FIG. 2 shows an example in which the display format conversion unit 24 is provided, but this display format is controlled by the control unit in advance so as to be normal to the human eye during projection, that is, to eliminate the left / right reverse etc. A configuration in which the conversion unit 24 is not provided is also possible.

  FIG. 3 is a diagram showing a movable state of the reflector A in FIG. Referring to FIG. 3, the projection unit 3 includes a light source 31, a reflection plate A32, a reflection plate B33, a display format conversion unit 34, and an enlargement element 35. In FIG. 3, at the time of enlarged projection, the reflector A32 is operated and rotated around the fulcrum X so that the light from the light source 31 enters the reflector B33. At the time of flash photography, the reflector A32 is disabled so that the light from the light source 31 does not enter the reflector B33. Except for the reflector A32, the description is omitted because it is the same as that described in FIG.

  FIG. 4 is a flowchart showing the operation of the embodiment of the present invention. The operation when the screen displayed on the main body liquid crystal display unit 1 (FIG. 1) is projected onto the projection screen 2a will be described with reference to FIGS.

  First, it is determined whether or not content is displayed on the main body liquid crystal display unit of the terminal itself (step 41: abbreviated as S41, the same applies hereinafter). If the content is displayed, it is determined whether or not to project the displayed content (S42). For example, the determination is made by an operation input of an enlarged display ON button or a projection function ON button by the user of the mobile phone terminal. Next, when the projection display operation is selected, the light source that also serves as the camera strobe is turned on (S43). Then, the light from the light source enters the movable reflector A, and the light from the reflector A passes through the reflector B. At this time, the reflector A32 is rotated about the fulcrum X. Next, the content is displayed and converted into a format suitable for projection. As the display conversion, for example, left / right inversion and up / down inversion are corrected. The converted content is irradiated with light through the reflector B, magnified by the magnifying element, and projected to the outside such as a wall surface (S44). Usually, the reflection plate A is in an inoperative state and can be used as a camera strobe.

  FIG. 5 is a diagram showing a movable state by other means of the reflector A in FIG. Referring to FIG. 5, the projection unit 5 includes a light source 51, a reflection plate A52, a reflection plate B53, a display format conversion unit 54, and an enlargement element 55. In FIG. 5, instead of rotating the reflecting plate A32 about the fulcrum X as shown in FIG. 3, the reflecting plate A52 is slid. Since other than this is the same as the case of FIG. 3 described above, the description is omitted.

It is a figure which shows the example of a projection of the image content in embodiment of this invention. It is a figure which shows the structure of the projection part in FIG. It is a figure which shows the movable state of the reflecting plate A in FIG. It is a flowchart which shows operation | movement of embodiment of this invention. It is a figure which shows the movable state by the other means of the reflecting plate A in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body liquid crystal display part 2,3,5 Projection part 2a Projection screen 4 Back surface liquid crystal display part 10 Mobile phone terminal 21, 31, 51 Light source 22, 32, 52 Reflector A
23, 33, 53 Reflector B
24, 34, 54 Display format converter 25, 35, 55 Enlarging element

Claims (16)

A mobile phone terminal with a camera having a control unit for controlling a projection unit for enlarging and projecting the content displayed on the display unit of the own terminal, the control unit from a light source also serving as a camera strobe A cellular phone terminal which performs optical path control for using light for projection display and for using the other for a strobe for a camera. A mobile phone terminal with a camera having a control unit that controls a projection unit for enlarging and projecting the content displayed on the display unit of the terminal itself, and the control unit displays on the display unit during content enlargement projection A mobile phone terminal that performs control for magnifying and displaying an external display by changing the optical path and irradiating light from a light source that is also used as a camera strobe to the content being played. A mobile phone terminal with a camera having a control unit that controls a projection unit for enlarging and projecting the content displayed on the display unit of the terminal itself, and the control unit displays on the display unit during content enlargement projection A mobile phone terminal that performs control for magnifying and displaying an external display by irradiating light that has not changed its optical path from a light source that is also used as a camera strobe to the content being processed. A mobile phone terminal with a camera having a projection unit for enlarging and projecting the content displayed on the display unit of its own terminal, wherein the projection unit is a camera flash unit for irradiating light on the displayed content. And a light path changing means for changing a light path of light output from the light source, and a magnifying element for irradiating the projection content with the light changed by the light path changing means and displaying the enlarged image on the outside. A mobile phone terminal characterized by. 5. The mobile phone terminal according to claim 4, further comprising a display format conversion unit for converting into a display format suitable for external projection. 6. The mobile phone terminal according to claim 5, wherein the display format conversion unit also serves as a rear display unit that is arranged on the rear surface of the terminal and performs display. The optical path changing means includes a first reflecting plate that receives and reflects light from the light source, and a second reflecting plate that causes the light reflected by the first reflecting plate to enter the display format conversion unit. The mobile phone terminal according to claim 4, further comprising: 8. The mobile phone terminal according to claim 7, wherein the first reflector is slidably or rotatably arranged to be used as a strobe at the time of photographing by a camera built in the terminal with the light source. . A content display method in a mobile phone terminal that enlarges the content displayed on its own terminal and projects and displays it externally, the step of determining whether or not the content is displayed on the liquid crystal display unit of its own terminal, and the display of the content If it is, the step of determining whether or not to project the displayed content, the step of turning on the light source that also serves as the camera strobe when the projection display is selected, and the light from the light source are movable A step of allowing light to enter the first reflecting plate, a step of passing light from the first reflecting plate through the second reflecting plate, and irradiating the content with light through the second reflecting plate And a step of enlarging the projected image by an enlarging element and projecting the image to the outside. The content display method in a mobile phone terminal according to claim 9, further comprising a step of converting the content into a format suitable for projection. 11. The content display method in a mobile phone terminal according to claim 10, further comprising a step of correcting left-right inversion and up-down inversion as the display conversion. 10. The content display method for a mobile phone terminal according to claim 9, further comprising a step of rotating the first reflecting plate about a slide or a fulcrum. A program that causes a computer to execute content display processing in a mobile phone terminal that enlarges and displays the content displayed on the terminal itself, and determines whether the content is displayed on the liquid crystal display unit of the terminal. A process, a process of determining whether to display the displayed content when the content is displayed, a process of turning on a light source that also serves as a camera strobe when the projection display is selected for operation, A process of entering light from a light source into a movable first reflector, a process of passing light from the first reflector through a second reflector, and the second reflector for content A program for causing a computer to execute a process of irradiating light through a beam, enlarging it with a magnifying element, and projecting it to the outside. 14. The program according to claim 13, which causes a computer to execute processing for display conversion of the content into a format suitable for projection. 15. The program according to claim 14, which causes a computer to execute processing for correcting left-right reversal and vertical reversal as the display conversion. 14. The program according to claim 13, which causes a computer to execute a process of rotating the first reflecting plate around a slide or a fulcrum.

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