JP2009069440A - Portable information display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable information display device with improved operability in displaying a plurality of image information by using a display device which can simultaneously display the plurality of different image information on the display screen wherein the image information are different between in viewing the display screen from a right side, and in viewing the display screen from a left side. <P>SOLUTION: The portable information display device comprises the display screen 21 for displaying the image information, a multi-view display part 10 which can simultaneously display the two image information, which is different between in viewing the display screen 21 from the right side and in viewing the display screen 21 from the left side, on the display screen 21, first and second image generation parts 54a, 54b for generating two image information respectively based on operation of an operation key by a user, an inclination detection part 51 for detecting inclination of the display screen 21 with respect to the user, and an operation subject selection part 53 for outputting an input signal based on the operation of the operation key to either of the first and second image generation parts 54a, 54b based on a detection result by the inclination detection part 51. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a portable information display device such as a mobile phone, and more specifically, information capable of simultaneously displaying two different image information on the display screen when the display screen is viewed from the right side and when viewed from the left side. The present invention relates to a display device.

  2. Description of the Related Art Conventionally, portable information display devices such as a mobile phone having a multi-application function and PDA (Personal Digital Assistants) that simultaneously activate a plurality of applications that respectively generate different image information are known. Normally, only one of each piece of image information generated by a plurality of applications being executed by the multi-application function is displayed on the screen, and processing for changing the application to be operated is performed by operating a predetermined operation key. . Alternatively, a process of dividing the display screen into a plurality of display areas and displaying each piece of image information in these display areas is performed. In this way, even when the display screen is divided and image information is displayed, processing for changing an application to be operated is performed by operating a predetermined operation key.

  In the case of an information display device that displays only one of a plurality of pieces of image information on the screen, an application image other than the currently displayed application image cannot be viewed simultaneously with the currently displayed application image. The status of the application could not be recognized. For this reason, in order to recognize the state of an application other than the application to be operated, it is necessary to perform a key operation for changing the operation target, and there is a problem that operability is not good. On the other hand, in the case of an information display device that divides a display screen to display image information, the image size is smaller than displaying one application image on the entire screen, which makes it difficult to view. was there.

  In recent years, there has been proposed a liquid crystal display device capable of simultaneously displaying two different image information on the display screen when viewed from the right side and when viewed from the left side (for example, Patent Documents 1 to 3). For example, in a liquid crystal display device (so-called dual view liquid crystal) capable of simultaneously displaying two different image information in the right side view and left side view of the display screen, two images differing when viewed from the right side and when viewed from the left side. Is displayed on the screen. A so-called triple view liquid crystal has also been proposed that can display three different image information simultaneously when viewing the display screen from the right side, viewing from the front, and viewing from the left side. Therefore, it is conceivable to use such a display device for the information display device described above to display a plurality of pieces of image information generated by a running application. In this way, since a plurality of application images can be displayed simultaneously without reducing the image size, it is possible to easily recognize the state of an application other than the application to be operated. However, there is a problem that the operability is not good because the key operation must be performed when changing the application to be operated.

Patent Document 2 discloses a technique for determining an operation position on a touch panel and changing an image to be operated, and Patent Document 3 discloses an operator by analyzing voice or fingerprint. Thus, a technique for changing an image to be operated is disclosed. The technologies described in Patent Documents 2 and 3 are based on the premise that a plurality of operators see different images for each field of view of the display screen, and allow the same operator to visually recognize different images for each field of view. This is not applicable to mobile phones that are assumed to be.
JP 2007-145158 A JP-A-2005-71286 JP 2007-112283 A

  As described above, in the conventional portable information display device, at least two pieces of image information that are different when viewed from the right side and when viewed from the left side are executed using a display device that can simultaneously display on the display screen. When displaying a plurality of pieces of image information generated by the middle application, there is a problem that the operability is not good because a key operation has to be performed in order to change the application to be operated.

  The present invention has been made in view of the above circumstances, and uses a display device that can simultaneously display a plurality of different image information on the display screen when viewed from the right side and when viewed from the left side. An object of the present invention is to provide a portable information display device with improved operability when displaying the image information. In particular, it is an object to provide an information display device with improved operability when changing an operation target.

  The portable information display device according to the first aspect of the present invention has a display screen for displaying image information, and displays two different image information when viewing the display screen from the right side and from the left side. The multi-view display means that can be displayed simultaneously on the top, the first and second image generation means for generating the two image information based on the operation of the operation key by the user, and the inclination of the display screen with respect to the user. An inclination detection means for detecting, and an operation target selection means for outputting an input signal based on an operation of the operation key to one of the first and second image generation means based on a detection result by the inclination detection means. It is prepared for.

  According to such a configuration, one of the first and second image generation means is selected as an operation target according to the tilt of the display screen, and an input signal based on the operation of the operation key is output to the selected image generation means. Therefore, the user can change the image generation means to be operated by tilting the display screen to the right or left when viewed from himself / herself.

  A portable information display device according to a second aspect of the present invention includes, in addition to the above configuration, the tilt detection unit includes an acceleration detection unit that detects acceleration generated on the display screen, and the acceleration detected by the acceleration detection unit. Is configured to detect the tilt of the display screen.

  A portable information display device according to a third aspect of the present invention includes, in addition to the above configuration, a display housing having the display screen, an operation housing in which the operation keys are arranged, and the display screen with respect to the operation housing. Connecting means for connecting the display case and the operation case so that the orientation of the display case can be changed in the left-right direction, and the tilt detection means is based on a rotation angle of the display case relative to the operation case. , Configured to detect the tilt of the display screen.

  A portable information display device according to a fourth aspect of the present invention has a mirror surface arranged adjacent to the display screen in addition to the above configuration, and displays one of the two pieces of image information being displayed. By reflecting on the mirror surface, a display image reflecting means is provided which makes it possible to simultaneously view the one image information on the mirror surface and the other image information on the display screen.

  A portable information display device according to a fifth aspect of the present invention includes, in addition to the above configuration, image reversing means for performing mirror reversal processing for reversing the left and right of the one image information reflected by the mirror surface, The means is configured to display the image information after the mirror reversal processing by the image reversing means as the one image information.

  According to the portable information display device of the present invention, either the first image generation unit or the second image generation unit is selected according to the tilt of the display screen, and the input signal based on the operation of the operation key is output. The image generating means to be operated can be changed by tilting the display screen to the right or left when viewed from the user. Therefore, since the operability when changing the operation target is improved, a display device capable of simultaneously displaying a plurality of different image information on the display screen when viewed from the right side and when viewed from the left side is used. The operability when displaying a plurality of pieces of image information can be improved.

Embodiment 1 FIG.
FIGS. 1A and 1B are diagrams showing a portable information display device according to Embodiment 1 of the present invention, in which a foldable mobile phone 1 is shown as an example of the information display device. FIG. 1A shows a state where the mobile phone 1 is viewed from the front, and FIG. 1B shows a state where the left side of the mobile phone 1 is viewed. This mobile phone 1 is an information display device capable of displaying two different image information simultaneously when viewing the display screen 21 from the right side and from the left side. The display housing 2, the operation housing 3, and the hinge unit 4. Consists of.

  The display housing 2 is a structure having a display screen 21, a receiver 22 for receiving and an antenna 23, and has a thin rectangular parallelepiped shape. The display screen 21 is a display element for displaying image information, and is arranged on one main surface of the display housing 2. In this example, the display screen 21 is composed of a vertically long liquid crystal panel. The receiver 22 for reception is an audio output device for reproducing the reception sound. The antenna 23 is a communication antenna for transmitting and receiving audio signals and the like.

  The operation housing 3 is a structure having an operation panel 30 on which a plurality of operation keys are arranged and a microphone 36 for transmission, and has a thin rectangular parallelepiped shape. The operation panel 30 is provided on one main surface of the operation housing 3. On the operation panel 30, guide keys 31a and 31b, an on-hook key 32, an off-hook key 33, a menu key 34, a direction key 35, and a numeric keypad are provided. A character input key and an application key are arranged.

  The guide keys 31 a and 31 b are operation keys that can display function assignments on the display screen, and are arranged on the right and left sides of the display screen 21, respectively. The application key is an operation key for starting a pre-registered application program.

  The hinge portion 4 is a connecting means for connecting the display housing 2 and the operation housing 3 so that the entire apparatus is vertically long, and is composed of a biaxial hinge having two orthogonal rotation axes A1 and A2. A rotation axis A1 of the hinge unit 4 is a rotation axis parallel to the vertical direction of the display screen 21. By rotating the display casing 2 with respect to the operation casing 3 around the rotation axis A1, the two casings are moved. Can be folded. Further, by rotating the display housing 2 with respect to the operation housing 3 around the rotation axis A2, the direction of the display screen 21 can be changed in the left-right direction with respect to the operation housing 3.

  FIG. 2 is a block diagram showing a configuration example of the display unit in the mobile phone 1 of FIG. 1, and is a multi-view capable of simultaneously displaying two different image information when the display screen 21 is viewed from the right side and when viewed from the left side. An example of the functional configuration of the display unit 10 is shown. The multi-view display unit 10 includes a right image writing unit 11a, a left image writing unit 11b, a VRAM 12, a liquid crystal panel driving unit 13, and a liquid crystal panel 14.

  The multi-view display unit 10 displays two different image data on the display screen 21 as a right view image and a left view image, respectively, so that the display screen 21 can be displayed on both the right side and the left side. Are different.

  Specifically, the right image writing unit 11a writes the input first image data to the VRAM (Video RAM) 12 as an image for the right visual field, and the left image writing unit 11b receives the input second image data. Are written in the VRAM 12 as an image for the left visual field. Then, the liquid crystal panel driving unit 13 drives the liquid crystal panel 14 based on the image data on the VRAM 12, and displays on the display screen 21 the right side view image and the left side view image that are different when viewed from the right side and when viewed from the left side. (Dual view display)

  FIG. 3 is a cross-sectional view illustrating a configuration example of the liquid crystal panel 14 in the multi-view display unit 10 of FIG. 2, and illustrates a cross-section that intersects the vertical direction (vertical scanning direction) of the display screen 21. The backlight 41 is a planar light source device for irradiating the liquid crystal panel 14 with light, and is disposed on the back side of the liquid crystal panel 14.

  The liquid crystal panel 14 is a dual-view liquid crystal capable of simultaneously displaying the right visual field image IMa and the left visual field image IMb when the display screen 21 is viewed from the right side and when viewed from the left side. The liquid crystal panel 14 includes a polarizing plate 42, a TFT (Thin Film Transistor) substrate 43, a liquid crystal layer 44, a color filter 45, a parallax barrier 46, a glass plate 47 and a polarizing plate 48, in this order as viewed from the backlight 41 side. Is arranged in.

  The color filter 45 is a filter for forming pixels of each color of RGB, and each pixel of RGB periodically appears repeatedly in the horizontal scanning direction, and the right-view pixel 49a and the left-view pixel 49b are alternately arranged. It is configured to appear. The arrangement pattern of the right-view pixel 49a and the left-view pixel 49b matches at an arbitrary position in the vertical scanning direction.

  The parallax barrier 46 is an optical filter that selectively transmits light that has passed through the color filter 45 using parallax, and is configured by alternately arranging slit-like light transmitting portions and light shielding portions.

  When viewing the display screen 21 configured by such a liquid crystal panel 14 from the right side, only the light transmitted through the right visual field pixel 49a is transmitted through the parallax barrier 46, and the light transmitted through the left visual field pixel 49b is parallax barrier 46. Is blocked by. Therefore, in this case, the right visual field image IMa is visually recognized.

  On the other hand, when the display screen 21 is viewed from the left side, only the light transmitted through the left visual field pixel 49 b is transmitted through the parallax barrier 46, and the light transmitted through the right visual field pixel 49 a is blocked by the parallax barrier 46. Therefore, in this case, the left visual field image IMb is visually recognized.

  Here, the case where the display screen 21 is viewed from the right side means that the screen display is visually recognized within the visual field range on the right side when the display screen 21 is viewed from the front direction. When viewing the display screen 21 from the left side, viewing the display screen 21 from the front direction means viewing the screen display within the left visual field range.

  In addition, when the same image data is input to the multi-view display unit 10 as image data for the right field of view and image data for the left field of view, the display screen 21 is common when viewed from the right side and when viewed from the left side. Image information can be displayed (single view display).

  FIG. 4 is a block diagram illustrating a configuration example of the mobile phone 1 in FIG. 1, and illustrates an example of a functional configuration in the mobile phone 1. The mobile phone 1 includes an inclination detection unit 51, a key input unit 52, an operation target selection unit 53, and an application execution unit 54. In this mobile phone 1, an operation of generating two different pieces of image information to be displayed as the right view image IMa or the left view image IMb and outputting the information to the multi-view display unit 10 as the first image data and the second image data. Is done.

  The tilt detection unit 51 includes a motion sensor 51a, a screen rotation detection sensor 51b, and a tilt determination unit 51c. The tilt detection unit 51 detects the tilt of the display screen 21 with respect to the user and outputs the detection result to the operation target selection unit 53. .

  The motion sensor 51a is acceleration detection means for detecting acceleration generated on the display screen 21, and can detect at least the rotation of the display screen 21 around the rotation axis parallel to the vertical direction of the display screen 21 as the acceleration. It has become. As such a motion sensor 51a, a gyro sensor, a gravity sensor or a geomagnetic sensor can be used.

  The gyro sensor is a sensor that detects a rotation angle around a predetermined rotation axis using Coriolis force generated by rotation. The gravity sensor is a sensor that detects a rotation angle around a predetermined rotation axis using gravity. The geomagnetic sensor is a sensor that detects a rotation angle around a predetermined rotation axis using geomagnetism.

  The screen rotation detection sensor 51 b is a sensor that detects the rotation angle of the display housing 2 with respect to the operation housing 3, and detects the rotation of the display screen 21 around the rotation axis A <b> 2 of the hinge portion 4. As the screen rotation detection sensor 51b, for example, a magnetic sensor such as a Hall element or a magnetoresistance (MR) element is used.

  The tilt discriminating unit 51c discriminates the tilt of the display screen 21 based on the outputs of the motion sensor 51a and the screen rotation detection sensor 51b, and outputs the discrimination result to the operation target selecting unit 53. Specifically, the inclination of the display screen 21 is determined based on the rotation angle detected by the motion sensor 51a and the rotation angle detected by the screen rotation detection sensor 51b.

  The key input unit 52 performs an operation of generating a predetermined input signal based on the operation of the operation key on the operation panel 30 and outputting it to the operation target selection unit 53.

  The application execution unit 54 is a program execution unit that executes a predetermined application program and generates image information based on the operation of the operation key by the user. For example, an application program for realizing a mail function or a web browser function is executed.

  The mail function is a function for creating and editing an electronic mail based on a user operation, transmitting / receiving an electronic mail, or browsing the transmitted / received electronic mail. The web browser function is a function of connecting to a communication network such as the Internet, acquiring site information from a web server on the communication network, and displaying it on the screen.

  In this application execution unit 54, a plurality of application programs for generating different image information can be started simultaneously, and two different image information generated by the plurality of application programs being executed are respectively used for the right side view and the left side view. Output as image information. Here, such right-view image information and left-view image information are generated by the first image generation unit 54a and the second image generation unit 54b, respectively, and the first image data and the second image information are generated. It shall be output as data.

  The operation target selection unit 53 performs an operation of outputting an input signal from the key input unit 52 to one of the first image generation unit 54a and the second image generation unit 54b based on the determination result by the inclination determination unit 51c. Is going. That is, the operation target selection unit 53 performs an operation of selecting an image generation unit to be operated based on the inclination of the display screen 21 and outputting an input signal based on operation of an operation key to the selected image generation unit. Is called.

  According to such a configuration, when the inclination of the display screen 21 with respect to the user changes beyond a predetermined threshold, image generation is performed as an operation target depending on whether the display screen 21 is tilted to the right or the left. The parts can be different. Therefore, when displaying a plurality of pieces of image information generated by the application program being executed, the user can change the image generation unit to be operated by tilting the display screen 21.

  Here, tilting the display screen 21 to the right with respect to the user means moving the direction of the display screen 21 to the right, and the left side of the display screen 21 approaches the user when tilted to the right. And the right side is away from the user. On the other hand, when tilted to the left, the right side of the display screen 21 approaches the user, and the left side moves away from the user.

  In the case of the dual view liquid crystal, the left visual field image IMb is visible when the display screen 21 is viewed from the left side. Therefore, the user needs to tilt the display screen 21 to the right in order to view the left visual field image IMb. . Therefore, when the user tilts the display screen 21 to the right, the second image generation unit 54b that generates image information for the left visual field is selected as the operation target.

  On the other hand, when the user tilts the display screen 21 to the left, the first image generation unit 54a that generates image information for the right visual field is selected as the operation target.

  FIG. 5 is a diagram showing an example of the operation of the mobile phone 1 of FIG. 1, and shows an operation example when changing the tilt of the display screen 21 with respect to the user. When the mobile phone 1 is held with the left hand, the display screen 21 can be rotated around the rotation axis B1 parallel to the vertical direction of the display screen 21 by twisting the wrist.

  The motion sensor 51a detects the rotation angle of B1a when the display screen 21 is rotated to the right about the rotation axis B1 and the rotation angle of B1b when the display screen 21 is rotated to the left with different signs.

  Further, the display screen 21 can be rotated around the rotation axis intersecting the display screen 21 by swinging the wrist to the left and right. The motion sensor 51a detects the rotation angle of B2a when the display screen 21 is rotated to the right about the rotation axis and the rotation angle of B2b when the display screen 21 is rotated to the left with different signs. The

  Based on such a detection result by the motion sensor 51a, the inclination of the display screen 21 is detected, and an image generation unit corresponding to the detection result is selected as an operation target.

  FIGS. 6A and 6B are diagrams schematically showing an example of the operation of the mobile phone 1 of FIG. 1, and the display screen 21 is tilted while the right view image IMa and the left view image IMb are displayed. The situation is shown. FIG. 6A shows a case where the display screen 21 is tilted to the left, and FIG. 6B shows a case where the display screen 21 is tilted to the right.

  In this example, the browsing image of the received mail is displayed as the right visual field image IMa, and the browsing image of the site information acquired by the web browser is displayed as the left visual field image IMb.

  When the display screen 21 is tilted to the left as viewed from the user, the right visual field image IMa becomes visible, and an image generation unit that generates the right visual field image IMa by detecting that the display screen 21 is tilted to the left is operated. Selected as a target.

  On the other hand, when the display screen 21 is tilted to the right as viewed from the user, the left visual field image IMb is visible, and an image that generates the left visual field image IMb by detecting that the display screen 21 is tilted to the right side. The generation unit is selected as an operation target.

  FIG. 7 is a diagram schematically illustrating another example of the operation of the mobile phone 1 of FIG. 1, in the case where the display screen 21 is tilted by rotating the display housing 2 with respect to the operation housing 3. The situation is shown. In this example, a case where the display screen 21 is tilted to the left without tilting the operation casing 3 when viewed from the user is shown.

  The screen rotation detection sensor 51b detects a rotation angle when the display screen 21 is rotated about the rotation axis A2 of the hinge portion 4. Based on such a detection result by the screen rotation detection sensor 51b, the inclination of the display screen 21 with respect to the user is detected, and an image generation unit corresponding to the detection result is selected as an operation target. That is, even when the display screen 21 is tilted to the left by rotating around the rotation axis A2, the image generation unit that generates the right visual field image IMa by detecting that the display screen 21 is tilted to the left is operated. Selected as a target.

  Steps S101 to S107 in FIG. 8 are flowcharts showing an example of the operation of the mobile phone 1 in FIG. First, the application execution unit 54 is instructed to switch to dual view display by a predetermined key operation when any one of a plurality of pieces of image information generated by the application program being executed is displayed in single view. Then, image data for the right visual field and the left visual field is generated and displayed in dual view (steps S101 and S102).

  Next, when the tilt detection unit 51 detects that the tilt of the display screen 21 with respect to the user has changed (step S103), the operation target selection unit 53 selects an image generation unit to be operated based on this detection result. An input signal based on the operation of the operation key is output.

  At this time, when the display screen 21 is tilted to the right, the second image generation unit 54b that generates image data for the left visual field is selected (steps S104 and S105). On the other hand, when the display screen 21 is tilted to the left, the first image generation unit 54a that generates image data for the right visual field is selected (steps S104 and S106).

  The processing procedure from step S103 to step S106 is repeated until the dual view display is terminated by a predetermined key operation (step S107).

  According to the present embodiment, one of the first and second image generation units is selected as an operation target according to the tilt of the display screen 21 with respect to the user, and the image generation unit is selected with the input signal based on the operation of the operation key Therefore, the user can change the image generation unit to be operated by tilting the display screen 21 to the right side or the left side when viewed from the user.

Embodiment 2. FIG.
In the first embodiment, the example in which the image generation unit to be operated is changed by detecting the inclination of the display screen 21 with respect to the user has been described. On the other hand, in the present embodiment, a case will be described in which one of the right visual field image IMa and the left visual field image IMb is reflected by a mirror surface so that these images can be viewed simultaneously.

  FIG. 9 is a diagram showing a configuration example of a portable information display device according to Embodiment 2 of the present invention, and shows a mobile phone 100 in which a reflective plate 101 having a mirror surface 101a is provided in the display housing 2. FIG. ing. This mobile phone 100 differs from the mobile phone 1 of FIG. 1 in that a reflective plate 101 is provided on the display housing 2 via a hinge portion 102.

  The reflection plate 101 is a display image reflecting means having a mirror surface 101a disposed adjacent to the display screen 21, and image information of either the right visual field image IMa or the left visual field information IMb being displayed on the display screen 21. Is reflected by the mirror surface 101a.

  By reflecting one of the right-side visual field image IMa and the left-side visual field information IMb being displayed on the mirror surface 101a, the user can display one image information on the mirror surface 101a and the other image information on the display screen 21. It can be seen at the same time.

  The hinge portion 102 is a connecting means for connecting the reflector 101 and the display housing 2 so as to be foldable. The hinge portion 102 is rotated about a rotation axis parallel to the vertical direction of the display screen 21, whereby the back side of the display housing 2 is provided. The reflector 101 can be folded.

  In this example, the reflecting plate 101 is provided on the left side of the display screen 21, and the left side of the display screen 21 and the right side of the mirror surface 101a are arranged adjacent to each other. Further, the reflecting plate 101 has a size comparable to that of the display screen 21.

  That is, when the right view image IMa and the left view information IMb are displayed in dual view, the left view image IMb is reflected by the mirror surface 101a, so that the user can view the left view image IMb on the mirror surface 101a and the display screen 21. The right visual field image IMa can be viewed at the same time.

  FIG. 10 is a block diagram illustrating a configuration example of the mobile phone 100 of FIG. 9, and an example of a functional configuration in the mobile phone 100 is illustrated. This mobile phone 100 differs from the mobile phone 1 of FIG. 4 in that it includes a mirror rotation detection sensor 103 and an image inversion unit 104.

  The mirror rotation detection sensor 103 is a sensor that detects the rotation angle of the reflection plate 101 with respect to the display housing 2, and detects the rotation of the mirror surface 101 a around the rotation axis of the hinge unit 102. For example, a magnetic sensor such as a Hall element or a magnetoresistive (MR) element is used for the mirror rotation detection sensor 103.

  The image reversing unit 104 performs mirror surface reversal processing for reversing the left and right sides of the image data for the left visual field reflected by the mirror surface 101a. The mirror inversion process for the image data for the left visual field is performed based on the output of the mirror rotation detection sensor 103.

  Specifically, when the reflecting plate 101 is expanded with respect to the display housing 2, the left-side visual field image data, that is, the second image data from the second image generation unit 54b is mirror-finished. An operation of performing the inversion process and outputting the processed image data to the multi-view display unit 10 is performed.

  On the other hand, when the reflecting plate 101 is folded and stored on the back side of the display housing 2, the mirror image inversion process is not performed on the second image data from the second image generation unit 54b. An operation of outputting the image data as it is to the multi-view display unit 10 is performed.

  The multi-view display unit 10 performs an operation of displaying the image information after the mirror inversion process by the image inversion unit 104 as image information for the left visual field.

  According to the present embodiment, since either the right view image IMa or the left view image IMb during the dual view display is reflected by the mirror surface 101a of the reflector 101, the user can select the one image on the mirror surface 101a. The information and the other image information on the display screen 21 can be viewed at the same time. At that time, since the image information reflected by the reflecting plate 101 is displayed on the basis of the image data after the mirror inversion process, the one image information is visually recognized as image information whose left and right coincide with the other image information. can do.

  In the first and second embodiments, the example in which the operation target is changed based on the detection result of the tilt of the display screen 21 during the dual view display of the right visual field image IMa and the left visual field image IMb has been described. The present invention is not limited to this. For example, the present invention can also be applied to a triple-view liquid crystal capable of simultaneously displaying three different image information when viewing the display screen from the right side, viewing from the front side, and viewing from the left side.

1 is a diagram showing a portable information display device according to Embodiment 1 of the present invention, in which a foldable mobile phone 1 is shown as an example of the information display device. FIG. 2 is a block diagram illustrating a configuration example of a display unit in the mobile phone 1 of FIG. 1, illustrating an example of a functional configuration of a multi-view display unit 10. FIG. 3 is a cross-sectional view illustrating a configuration example of the liquid crystal panel 14 in the multi-view display unit 10 of FIG. 2, and illustrates a cross-sectional state that intersects the vertical direction of the display screen 21. FIG. 2 is a block diagram illustrating a configuration example of the mobile phone 1 in FIG. 1, illustrating an example of a functional configuration in the mobile phone 1. It is the figure which showed an example of operation | movement of the mobile telephone 1 of FIG. 1, and the operation example at the time of changing the inclination of the display screen 21 with respect to a user is shown. It is the figure which showed typically an example of operation | movement of the mobile telephone 1 of FIG. 1, and the mode at the time of tilting the display screen 21 during the display of the right view image and the left view image is shown. It is the figure which showed typically another example of operation | movement of the mobile telephone 1 of FIG. 1, and the mode at the time of tilting the display screen 21 by rotating the display housing | casing 2 is shown. 3 is a flowchart showing an example of the operation of the mobile phone 1 of FIG. It is the figure which showed the structural example of the portable information display apparatus by Embodiment 2 of this invention, and the mobile telephone 100 with which the reflecting plate 101 was provided in the display housing | casing 2 is shown. FIG. 10 is a block diagram illustrating a configuration example of the mobile phone 100 in FIG. 9, illustrating an example of a functional configuration in the mobile phone 100.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cellular phone 2 Display housing | casing 3 Operation housing | casing 4 Hinge part 10 Multi view display part 14 Liquid crystal panel 51 Tilt detection part 51a Motion sensor 51b Screen rotation detection sensor 51c Tilt discrimination | determination part 52 Key input part 53 Operation target selection part 54 Application execution Unit 54a first image generation unit 54b second image generation unit 21 display screen 22 receiver for receiver 23 antenna 30 operation panel 100 mobile phone 101 reflector 101a mirror surface 102 hinge unit 103 mirror surface rotation detection sensor 104 image inversion units A1, A2 Axis of rotation

Claims (5)

A multi-view display means having a display screen for displaying image information, and capable of simultaneously displaying two different image information on the display screen when the display screen is viewed from the right side and when viewed from the left side;
First and second image generation means for generating the two pieces of image information based on an operation of an operation key by a user;
A tilt detecting means for detecting the tilt of the display screen with respect to the user;
And an operation target selection unit that outputs an input signal based on the operation of the operation key to either the first image generation unit or the second image generation unit based on a detection result of the tilt detection unit. Portable information display device.   2. The tilt detection unit includes an acceleration detection unit that detects an acceleration generated on the display screen, and detects the tilt of the display screen based on the acceleration detected by the acceleration detection unit. The portable information display device described. A display case having the display screen, an operation case in which the operation keys are arranged, and the display case and the operation case so that the direction of the display screen can be changed in the left-right direction with respect to the operation case. Connecting means for connecting the body,
The portable information display device according to claim 1, wherein the tilt detection unit detects the tilt of the display screen based on a rotation angle of the display casing with respect to the operation casing.   The one image information on the mirror surface and the display screen have a mirror surface arranged adjacent to the display screen, and reflect one of the two pieces of image information being displayed on the mirror surface. 2. The portable information display device according to claim 1, further comprising display image reflecting means for allowing the other image information on the upper side to be viewed at the same time. With respect to the one image information reflected by the mirror surface, the image inversion means for performing mirror surface inversion processing to invert the left and right,
5. The portable information display device according to claim 4, wherein the multi-view display unit displays the image information after the mirror inversion process by the image inversion unit as the one image information.

Images