JP2007124004A - Telephone set with detachable display section, and projector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a telephone set (terminal) including a detachable display section that causes no high temperature to the inside of the terminal, places no limit on an image size at projection, can display a received image onto an external screen, and can be configured economically. <P>SOLUTION: The telephone set 100 including the image display means (display section) 101 is characterized in that the image display means comprises a transparent display device and a backlight, the transparent display device is structured attachable to / detachable from a telephone set main body, and the transparent display device and a circuit at the telephone set main body side are connected by a drawable cable 102. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a telephone having a detachable display unit and a projector device.

  A transmissive LCD is provided on the sub-display unit provided so as to be exposed even when closed on the upper casing of the foldable mobile phone, and an ultra-bright LED and an optical system incorporated in the foldable mobile phone are provided. By emitting light, it has a projector function for projecting an image displayed on the sub-display unit onto a screen or the like via a transmissive LCD, and the sub-display unit LCD and the projector liquid crystal are combined (for example, patents). Reference 1).

JP 2005-191838 A

  When a super-bright LED and an optical system are incorporated in a small terminal device such as a cellular phone and light is emitted, the inside of the terminal device becomes hot and may cause a failure. It is necessary to consider the brightness of the light source, and the brightness of the light source must be limited. Therefore, the image size at the time of projection is limited.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a telephone having a detachable display unit that can display a received image or the like on an external screen and can be economically configured, in which the terminal device does not have a high temperature and the image size during projection is not limited. And providing a projector apparatus.

  The present invention is a telephone having an image display means, wherein the image display means includes a transmissive display device and a backlight, and the transmissive display device is detachable from a telephone body, and the transmissive type The display device and the circuit on the telephone main body side are connected to each other by a pullable cable, and the telephone has a detachable display portion.

  According to the present invention, in the above description, the transmissive display device is a liquid crystal device.

  Furthermore, the present invention is a projector for projecting a display image of a transmissive display device, wherein the transmissive display device has a detachable structure, and the transmissive display device is driven by an external device. Projector apparatus.

  According to the present invention, a telephone having a detachable display unit that can display a received image or the like on an external screen and can be economically configured, in which the inside of the terminal device is not heated and the image size during projection is not limited. And a projector apparatus can be obtained.

  Hereinafter, embodiments according to the present invention will be described in detail.

  FIG. 1 is an overall configuration diagram of an embodiment according to the present invention. FIG. 2 shows how the LCD is attached to and detached from the telephone body. FIG. 3 is a diagram showing a state of cooperation between the LCD and the projector unit.

  The overall configuration is that the LCD unit 101 removed from the telephone body 100 is attached to the projector unit 103 with the extension cord 102 extended. The projector unit 103 is configured to project the projection light from the light driving unit 104 toward the LCD unit 101 and project the image displayed on the LCD unit 101 onto the screen 106 from the projection lens 302.

  The LCD unit 101 is a transmissive liquid crystal panel, and the backlight 220 of the telephone body 100 is not removed.

  In order to attach / detach the LCD unit 101 to / from the telephone main body 100, an attaching / detaching connector 107 which can adjust the angle of the LCD unit 101 and can be attached / detached is attached to or detached from the mounting portion 108 of the telephone main body 100 in a cassette manner. The LCD unit 101 can be moved to a certain distance by the drawer code 102. Further, the cord can be pulled back by extending the lead cord 102 to a certain distance.

  At the time of cooperation between the LCD unit 101 and the projector unit 103, the detachable connector 107 of the LCD unit 101 is adjusted, and the LCD unit 101 is slid and mounted on the LCD mounting unit 109 of the projector unit 103 from above.

  FIG. 4 is an overall functional block diagram of the embodiment according to the present invention.

  The device according to the present invention has a function of operating as a liquid crystal projector by removing the removable display unit 201 including the LCD unit 101 mounted on the telephone body 100 and mounting the removed removable display unit 201 directly on the projector unit 103. have.

  The telephone body 100 is a communication terminal capable of image data communication as well as voice communication, and shows a basic configuration of the telephone. The telephone body 100 includes a control unit 202, a voice / communication control unit 203, an operation unit 204, a memory unit 205, a speaker 206, a handset 207, an image control unit 208, a modular connector 209, a POWER 210, an LCD adjustment unit 211, and a backlight driving unit. 212.

  The detachable display unit 201 including the LCD unit 101 that can be detached from the telephone main body 100 includes an LCD unit 101, an LCD driving unit 213, a lead cord 102, and a detachable connector 107.

  The projector unit 103 that enables the projector operation in cooperation with the detachable display unit 201 includes a POWER 301, a light driving unit 104, a lens 105, an LCD mounting unit 109, and a projection lens 302.

  The control unit 202 controls the overall operation of the telephone body 100.

  The voice / communication control unit 203 controls a sound source such as a ring tone, voice data transmission / reception and image data transmission / reception, a speaker 206 for outputting sound to the outside, and a handset 207 used during a call, and constitutes a communication circuit of the telephone.

  The operation unit 204 transmits various commands to the control unit 202 by key input.

  The memory unit 205 sets data transmission / reception information of the telephone, color tone (contrast) adjustment in the LCD adjustment unit 211 when the LCD unit 101 is linked to the projector unit 103, backlight processing by the backlight driving unit 212, and the like. Store the data. The control unit 202 reads information stored in the memory unit 205 and controls the movement of each unit.

  The handset 207 is used during a call.

  The speaker 207 outputs sound to the outside.

  The image control unit 208 compresses / decompresses the image data sent from the audio / communication control unit 203 by, for example, MPEG which is a compression method of video data.

  The modular connector 209 is a port for connecting a LAN cable or the like in the case of a telephone line or an IP line.

  The POWER 210 is a power supply circuit for supplying necessary power to the telephone body 100 and the detachable display unit 201.

  The LCD adjustment unit 211 controls the image data processed by the image control unit 208 and causes the LCD unit 101 to display the image data. Also, when the LCD unit 101 is linked with the projector unit 103, the color tone (contrast) suitable for the projector operation is adjusted.

  The backlight drive unit 212 processes the operation of the backlight function of the LCD unit 101. The brightness control of the backlight 220 and the operation of whether or not the detachable display unit 201 is turned off at the time of detachment are controlled. During normal telephone operation, the backlight 220 and the LCD unit 101 are integrated, and are separated when the LCD unit 101 is linked with the projector unit 103.

  The LCD unit 101 displays image data received by the telephone as a video, and can be separated from the telephone main body 100. The LCD unit 101 serves as a liquid crystal panel for the projector when linked with the projector unit 103, and thus is a transmissive liquid crystal (LCD) that is used both during the telephone operation and during the projector operation.

  The LCD drive unit 213 receives image data from the voice / communication control unit 203 sent through the control unit 202, command data from the operation unit 204, information stored in the memory unit 205, and an LCD adjustment unit 211. In response to the processing data, the overall operation of the LCD unit 101 is controlled.

  The detachable connector 107 is a connector that allows the telephone body 100 and the detachable display unit 201 to be detachable, and is attached to or detached from the mounting portion 108 of the telephone body 100. The detachable connector 107 can be adjusted in angle, such as raising or lowering the LCD unit 101.

  The lead cord 102 is a cord used when the LCD unit 101 is removed by the detachable connector 107 and constitutes an interface circuit between the telephone body 100 and the detachable display unit 201.

  The POWER 301 is a power supply circuit that supplies necessary power to the projector unit 103.

  The light driving unit 104 incorporates a high-intensity light source, and performs projection on the LCD unit 101.

  The projection lens 302 is a lens that focuses the light from the light driving unit 104 that has passed through the LCD unit 101 on the screen 106, and enlarges the image displayed on the LCD unit 101.

  The LCD mounting unit 109 is a connector unit attached to the projector unit 103 and is a connector for mounting the detachable display unit 201 including the LCD unit 101 removed from the telephone body 100.

  FIG. 5 is a configuration diagram of the projector unit 103.

  The projector unit 103 operates as a projector when linked to the detachable display unit 201 including the LCD unit 101 removed from the telephone body 100.

  The POWER 301 is a power supply circuit for starting up the projector unit 103. The light driving unit 104 is a driving circuit for generating high-intensity projection light.

  The LCD attachment unit 109 is a part for attaching / detaching the detachable display unit 201 including the LCD unit 101 removed from the telephone main body 100, and detects attachment with the projector unit 103.

  The liquid crystal driving circuit unit 302 adjusts brightness, color tone (contrast), and focal position according to a command (setting) from the telephone side.

  The projection light emitted from the light driving unit 104 is focused by the lens 105 and projected on the LCD unit 101. Since the image displayed on the LCD unit 101 is projected through the projection lens 302 by this projection, the image is displayed on the screen 106 in an enlarged manner.

  Examples of images that can be enlarged and displayed by the apparatus of the present invention include images such as TV phones, mobile phones, network cameras installed in remote places, TV conference systems, etc. as external lines, images of camera doorphones, etc. as extensions. Is mentioned. The image information received by these telephones is enlarged and displayed using the apparatus of the present invention.

  Next, a case where the LCD unit 101 is removed from the telephone body 100 will be described with reference to FIGS. 1, 2, and 3.

  When the LCD unit 101 and the projector unit 103 are linked, the LCD unit 101 is separated from the telephone body 100. Since the LCD unit 101 is a transmissive liquid crystal and is used as a liquid crystal panel of a projector, when the LCD unit 101 is removed from the telephone body 100, the backlight 220 remaining on the telephone body 100 side is turned off. As a method, for example, it is only necessary to electrically detect that the attachment / detachment connector 107 used for attachment / detachment is removed from the attachment portion 108 on the telephone body 100 side, and to stop the operation of the backlight 220. On the contrary, when the LCD unit 101 is returned to the telephone body 100, the backlight 220 is attached to the telephone body 100 by electrically detecting that the detachable connector 107 is attached to the mounting part 108 of the telephone body 100. It is always ready to light.

  Here, the LCD unit 101 will be described.

  In the present invention, it is necessary to remove the LCD unit 101 displaying an image from the telephone body 100 and operate as a liquid crystal panel for the projector unit 103 which is an external output device. The liquid crystal (LCD) is adopted.

  In addition, durability with respect to high-intensity projection light projected from the projector unit 103 is required. Therefore, it is desirable that the LCD unit 101 used in the telephone body is a liquid crystal (LCD) having the same performance as a transmissive liquid crystal panel that is durable against high-intensity projection light used in the projector.

  In this embodiment, a transmissive liquid crystal device that displays an image from a telephone is detachable so that the terminal device does not have a high temperature and the image size at the time of projection is not limited. And a projector apparatus can be obtained.

  Further, by making the transmissive liquid crystal device for displaying an image removable, it is possible to directly cooperate with an external output device, so that an interface circuit with the external output device is unnecessary.

  Further, since the existing LCD drive unit is used as it is, it is economical because there are few modifications for incorporation.

  In addition, by making the transmissive liquid crystal device that displays images removable, the projector function can be easily realized, so that the image displayed on the phone can be shown in one large area, and image information is also available. Can be shared with everyone, not just individuals. Since the image can be displayed in an enlarged manner, it can be expected to be used as a business tool by utilizing it for a door phone image, a live image distributed by a network camera, a TV phone, a TV conference system, and the like.

1 is an overall configuration diagram of an embodiment according to the present invention. It is a figure which shows a mode that LCD is attached or detached to a telephone main body. It is a figure which shows the mode of cooperation of LCD and a projector unit. It is a whole functional block diagram of an embodiment concerning the present invention. It is a block diagram of a projector unit.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100: Telephone main body 100: LCD part, 102: Drawer cord, 103: Projector unit, 104: Light drive part, 105: Lens, 106: Screen, 107: Connector for attachment / detachment, 108: Mounting part, 109: LCD mounting part, 201: Detachable display unit 202: Control unit 203: Audio / communication control unit 204: Operation unit 205: Memory unit 206: Speaker 207: Handset 208: Image control unit 209: Modular connector 210 : POWER, 211: LCD adjustment unit, 212: Backlight drive unit, 213: LCD drive unit, 220: Backlight, 301: POWER, 302: Projection lens.

Claims (3)

  A telephone having image display means, wherein the image display means includes a transmissive display device and a backlight, and the transmissive display device is configured to be detachable from a telephone body, and the transmissive display device and the A telephone having a detachable display portion, characterized in that it is connected to a circuit on the telephone body side by a cable that can be pulled out.   2. The telephone having a detachable display portion according to claim 1, wherein the transmissive display device is a liquid crystal device. A projector that projects a display image of a transmissive display device, wherein the transmissive display device has a detachable structure, and the transmissive display device is driven by an external device.

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