JP4593522B2 - Mobile terminal device - Google Patents

Description

  The present invention relates to a mobile terminal device represented by, for example, a mobile phone that is provided with a casing capable of forming an open state and a closed state and is compatible with television recording.

  Mobile phones are becoming more compact, and have two hinges in the hinge function to support applications that receive TV broadcasts and shooting applications with cameras. In addition to conventional folding operations, LCDs (Liquid Crystal) An increasing number of models perform complex operations such as rotating housings with display devices.

In addition, as functions are advanced, a model having a TV recording function capable of recording a TV program in a built-in memory has appeared.
In the future, it is expected that many mobile phones equipped with the above functions will appear for terrestrial digital broadcasting.

  By the way, in the mobile phone having the above-described folding housing, conventionally, a technique for switching the display on the main and sub two display units depending on the application (for example, see Patent Document 1) is known.

Alternatively, there is known a display image switching technique in which a video for TV broadcasting is reversed up and down and left and right without depending on the posture of the mobile phone in use and always displayed in the correct orientation (for example, see Patent Document 2). ing.
JP-A-2005-323241 JP-A-2005-354689

When the video signal from the TV tuner is recorded via the LCD controller in a mobile phone equipped with the main and sub display systems in the above-described folding case, the image memory is shared between the main display and the sub display. Inconvenience occurs due to the relationship.
That is, when the casing is closed during recording, the drawing by the LCD controller is switched from the main display to the sub display, and therefore, the recording is interrupted.
However, the above-mentioned patent documents do not disclose the recording, and therefore there is no suggestion to solve this.

  An object of the present invention is to provide a mobile terminal device that can continuously perform recording by performing control so that display switching is not performed during recording even when the housing is in a closed state. .

The mobile terminal device according to the first aspect of the present invention includes a first casing, a second casing connected to the first casing so as to be able to form an open state and a closed state, display a display unit, have a second display portion, an image decoding unit to obtain a television picture data by receiving a television broadcast, the TV image data to one of said first and second display unit The television image data is not recorded when a change in the open / closed state of the first and second housings occurs while the image display control unit and the television image data are being displayed. , the TV display destination of the image data and the first let switch from one to the other one of the second display unit, when the are recording television image data, said first and second display the main controlling said image display control unit so that the one of the parts not switched to the other And a control unit, Ru equipped with.

  Preferably, the image display control unit includes an image input acquisition unit that acquires the television image data and generated image data generated by the main control unit, and the first display unit or the second display unit. An image storage unit for acquiring and temporarily storing an image to be displayed from the image input acquisition unit, and a drawing for outputting the image temporarily stored in the image storage unit to the first display unit or the second display unit The drawing control unit reads out the television image data temporarily stored in the image storage unit and transfers it to the main control unit during the recording.

  Preferably, the image input acquisition unit supplies only the television image data to the image storage unit during the recording.

  Preferably, the first display unit is disposed at a position hidden by the first and second housings in the closed state, and the second display unit is configured to be the first and second units in the closed state. It is arranged in the position which is not hidden in 2 cases.

  Preferably, the main control unit sets the first display unit to the power saving state when the recording is in the closed state.

  Preferably, the first display unit has a backlight, and the power saving state is turning off the backlight.

Preferably, the second display unit and the exposure key are provided at a position that is not hidden by the first and second housings in the closed state, and the main control unit is configured so that the exposure key is pressed. When the recording is not performed, the display by the second display unit is performed. When the recording is performed, the display is not switched to the display by the second display unit.
A portable terminal device according to a second aspect of the present invention includes a first casing, a second casing connected to the first casing so as to be able to form an open state and a closed state, A display unit, a second display unit and an exposure key provided in a position that is not hidden by the first and second housings in the closed state, and a TV broadcast to receive TV image data. An image decoding unit to obtain, an image display control unit for displaying the television image data on one of the first and second display units, and the television image data is recorded when the exposure key is pressed. If the television image data is not recorded, the television image data is displayed on the second display unit. If the television image data is recorded, the television image data is displayed on the second display unit. A main control unit for controlling the image display control unit so as not to be performed. That.

   According to the present invention, even when the first housing and the second housing are in a closed state, the main control unit performs control so that display switching is not performed during recording, thereby continuing recording. Can be done.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is a front view showing an external appearance of a mobile terminal device 1 according to an embodiment of the present invention in an open state, and FIG. 3A is a front view showing the appearance of the mobile terminal device 1 in a closed state, and FIG. 3B is a rear view showing the appearance of the mobile terminal device 1 in a closed state.

The mobile terminal device 1 is configured as a so-called foldable mobile phone, and includes a receiving housing (first housing) 2 and a transmitting housing that are rotatably connected to each other between an open state and a closed state. A body (second housing) 3 is provided.
The receiving case 2 and the transmitting case 3 form a case of the entire mobile terminal device 1 by connecting the end portions of the receiving case 2 and the transmitting case 3 by a connecting portion 4 that is the center of rotation.

  The receiving case 2 and the transmitting case 3 are each formed in a substantially thin rectangular parallelepiped shape, and are superposed on each other in the closed state, and the outlines of the receiving case 2 and the transmitting case 3 substantially coincide with each other when viewed from the other case side. It is like that.

The receiving case 2 includes a front side case 6 on the side facing the transmitting case 3 in the closed state, a back side case 7 on the back side, and a panel 8 attached to the back side of the back side case 7. I have.
The front side S1 facing the transmission case 3 in the closed state of the receiving case 2 is constituted by a front case 6, and the opposite rear side S 2 is constituted by a rear case 7 and a panel 8.
The front side case 6, the back side case 7, and the panel 8 are each formed of, for example, a nonconductive resin.

A sound emitting hole 12 of a speaker for call (not shown) is opened in the front surface S1 of the receiving case 2. The receiving case 2 is provided with a main display unit 13 (display monitor) for displaying images and characters on the front surface S1, and a sub-display unit 14 (FIG. 3 (a)) for displaying images and characters on the back surface S2. ing. That is, the main display unit 13 is provided at a position hidden in the closed state, and the sub display unit 14 is provided at a position not hidden even in the closed state. The main display unit 13 and the sub display unit 14 are configured by display devices such as a liquid crystal display device and an organic EL (Electronic Luminescence) display device, for example.
The panel 8 is translucent and also serves as a protective cover for the sub display unit 14.
Further, a camera 20 is arranged on the inner side of the panel 8 with the back S2 side as the shooting direction.

The transmitter case 3 includes a front-side case 9 on the side facing the receiver case 2 in the closed state, a back-side case 10 on the back side, and a lid 11 that covers the back side of the back-side case 10. It has. The front surface S3 facing the receiving housing 2 in the closed state of the transmitting housing 3 is constituted by a front case 9, and the back surface S4 on the opposite side is constituted by a back case 10 and a lid 11.
The front side case 9, the back side case 10, and the lid body 11 are each formed of, for example, a non-conductive resin.

A sound collection hole 16 of a microphone for communication (not shown) is opened on the front surface S3 of the transmission housing 3, and a sound emission hole 17 is closed to the side of the notification speaker (not shown) on the back surface S4 side. is doing. The transmitter case 3 is provided with an operation unit 18 including various keys exposed on the front surface S3.
The various keys are, for example, a dial key 18a, a cursor key 18b, a function key 18c, and an enter key 18d.
In addition, the transmission case 3 is provided with a camera 20 having a photographing direction on the back S2 side and an infrared communication unit 21 having an infrared credit having a transmitting / receiving direction on the back S4 side.

The connecting portion 4 has a notch 27 formed at the end of the receiver case 2 and a protrusion 28 formed at the end of the transmitter case 3. It is pivotally supported and configured.
The notch 27 and the protrusion 28 are formed, for example, such that the width in the direction of the rotation axis (the left-right direction in FIG. 1) is about half the width of the receiving housing 2 and the transmitting housing 3. It is formed at the center in the width direction of the body 2 and the transmission housing 3.
The protruding portion 28 protrudes from the front surface S <b> 3 of the transmitting housing 3 in a direction opposite to the receiving housing 2 in the closed state at a height similar to the thickness of the receiving housing 2.

  FIG. 4 is a block diagram showing an example of the configuration of the signal processing system of the portable terminal device according to the embodiment of the present invention shown in FIG.

  As shown in FIG. 4, the mobile terminal device 1 includes a receiving case 2 as a first case and a transmitting case 3 as a second case. As described above, the housing 3 is mechanically connected via the connecting portion 4 (hinge mechanism), and is electrically connected to the main cable 43 as the first cable and the camera cable as the second cable. 44.

Both the main cable 43 and the camera cable 44 are constituted by a thin coaxial cable, and both communicate with the inside of the transmitting case and the inside of the receiving case through a hinge bearing that is inserted from the notch portion 27 into the protruding portion 28. ing.
A thin coaxial cable has a relatively small diameter among coaxial cables, and has a diameter of 1 mm or less, for example. Recently, those having a diameter of 0.3 mm or less are also known, and have higher noise resistance than FPC, and are excellent in wiring property and flexibility.

A main display unit 13 as a first display unit, a sub display unit 14 as a second display unit, a camera 20, and a speaker 50 are mounted on the receiving housing 2.
The main display unit 13 and the sub display unit 14 are mounted with an LCD as a display device.

  On the other hand, the transmitter housing 3 is composed of a circuit board 30, a TV antenna 31, a transmitting / receiving antenna 35, and a microphone 43. On the circuit board 30, a TV tuner 32, an image decoding unit 33, an image display control unit 34, a communication processing unit 36, an audio processing unit 37, a main control unit 38, a key input processing unit 39, a memory 40 (main memory unit) and a switch circuit 41 are mounted.

The main control unit 38 is constituted by, for example, a CPU (not shown), and when the CPU sequentially reads and executes a program recorded in the memory 40, the TV tuner 32, the image decoding unit 33, the image display control unit 34, communication It controls various peripheral LSIs such as the processing unit 36, the voice processing unit 37, the key input processing unit 39, and the like.
As will be described later, when the receiving housing 2 and the transmitting housing 3 are in the open state, the main control unit 38 causes the image display control unit 34 to display an image on the main display unit, and detects the closed state. The display of the image by the image display control unit 34 is switched from the main display unit 13 to the sub display unit 14 except during the recording of the television broadcast.

  The TV tuner 32 converts, for example, a terrestrial digital broadcast wave received via the TV antenna 31 into an intermediate frequency signal and demodulates it, and further obtains the demodulated signal as a video signal component and an audio signal component. And are supplied to the video decoding unit 33 and the audio processing unit 37, respectively. The audio processing unit 37 generates an audio signal from the input audio signal component, and outputs it to the speaker 50 of the receiving housing 2 via the main cable 43.

In addition, the image decoding unit 33 decodes the input video signal component and outputs the decoded video signal component to the image display control unit 34 via the common bus 100.
The image display control unit 34 converts the decoded signal output from the image decoding unit 33 into image data according to a predetermined format, and outputs the image data to the main display unit 13 of the receiver housing 2 via the main cable 43.

  Further, the image display control unit 34 acquires image data captured and generated by the camera 20 via the camera cable 44 and the common bus 100, converts the image data into image data according to a predetermined format, and receives the reception case via the main cable 43. 2 to the main display unit 13 or the sub display unit 14.

  On the other hand, the communication processing unit 36 includes a high-frequency circuit, and modulates audio data input via the microphone 42 and processed by the audio processing unit 37 to perform radio communication using radio waves, via the transmission / reception antenna 35. Send. The communication processing unit 36 also demodulates a signal received via the transmission / reception antenna 35 and outputs the demodulated signal to the speaker 50 of the receiver case 2 via the audio processing unit 37.

  The key input processing unit 39 acquires the input information from various keys arranged on the operation unit 18 and passes it to the main control unit 38. Note that the various keys to be arranged include a recording key for instructing recording of a TV broadcast. Further, various keys may be arranged on the receiving housing 2 side via the main cable 43. In addition, side keys are included on the side and back.

  FIG. 5 is a block diagram illustrating an example of an internal configuration of the image display control unit 34 illustrated in FIG. 4.

  In FIG. 5, the image display control unit 34 includes an image input acquisition unit 341, a drawing control unit 342, a display image storage unit 343, an image encoding unit 345, and a display control unit 346.

  The image input acquisition unit 341 acquires the image data output from the image decoding unit 33 and the image data generated by the main control unit, and outputs the acquired image data to the drawing control unit 342.

The drawing control unit 342 writes image data for display on the main display unit 13 in the display image storage unit 343 or writes image data for display on the sub display unit 14. In this way, the image data to be written to the display image storage unit 343 and the display unit to be read are switched according to the instruction from the main control unit 38 and displayed.
When a TV viewing instruction is given by key input, image data from the image decoding unit 33 is received from the image input acquisition unit 341, and this image data is displayed on the main display unit 13 with respect to the display image storage unit 343. To be written as image data. When recording of data including an image is instructed by key input for television broadcasting, the image data written in the display image storage unit 343 is read out, encoded by the image encoding unit 345, and transferred to the main control unit 38. When key input occurs in the main control unit 38, not only the drawing control unit 342 performs a corresponding process by determining the type of instruction such as a television broadcast viewing instruction or a recording instruction, but also in the case of a recording instruction. Also writes the encoded image data from the image encoding unit 345 into the memory 40. When receiving a recording instruction, the main control unit 38 also writes a flag indicating that recording is in progress in the memory 40.

The display control unit 346 controls the main display unit 13 to be in a power saving state under the control of the main control unit 38 when the receiving case 2 and the transmitting case 3 are in the closed state during the recording of the television broadcast. Set.
Here, as means for setting the power saving state, for example, it is possible to adopt a configuration in which the backlight is turned off or the illuminance is reduced.

FIG. 6 is a flowchart for explaining the operation of the mobile terminal device according to the embodiment of the present invention.
The operation of the portable terminal device according to the embodiment of the present invention shown in FIGS. 1 to 5 will be described in detail below with reference to the flowchart shown in FIG.

First, the main control unit 38 is in a folded state of the receiving housing 2 and the transmitting housing 3, that is, in a “closed state”, for example, by ON / OFF of a micro switch provided inside the connecting unit 4. Whether or not is detected (step S601).
Here, when the receiving case 2 and the transmitting case 3 are in the closed state, the main control unit 38 further determines whether or not the mobile phone is recording a TV broadcast (step S602).
Whether the TV broadcast is being recorded or not is determined in the memory 40 of the main control unit 38 by the key input processing unit 39 when the user operates the operation unit 18 and intentionally displays the TV broadcast recording. When the flag (not shown) is turned on to execute the recording function, it can be determined by referring to this flag.

Here, when it is determined that the TV broadcast is not being recorded (step S602 “NO”), the drawing control unit 342 performs control to switch to the display by the sub display unit 14 (step S607), and the display by the sub display unit 14 is performed. This is performed (step S608).
Note that the display on the sub display unit 14 does not have a capability to display a television broadcast (when the display is small, the number of colors is insufficient, etc.), the drawing control unit 342 displays the television broadcast. Separately from this, only a simple display indicating the terminal status such as the clock, the received radio wave status, and the remaining battery level read from the main control unit 38 is acquired by the image input acquisition unit 341 and written in the display image storage unit 343. The information is output as information to be displayed on the sub display unit 14.
In addition, when the TV broadcast is displayed by the sub display unit 14, the drawing control unit 342 draws the image data decoded by the image decoding unit 33 acquired via the image input acquisition unit 341 in the sub display image storage unit 344. Under the control of the main control unit 38, the drawing control unit 342 reads the image data from the sub display image storage unit 344 in synchronization with the display timing, and supplies the image data to the sub display unit 14 via the display control unit 346. It may be realized.

On the other hand, when it is determined that recording is in progress (step S602 “YES”), display control by the main display unit 13 is performed without switching control to display by the sub display unit 14 under the control of the main control unit 38. Thus, the recording operation can be continued (step S603).
If the display is switched from the display by the main display unit 13 to the display by the sub display unit 14 even when recording is being performed when the closed state is detected, the following problem occurs.
When the terminal information is configured to be displayed on the sub display unit 14 in the closed state, the drawing control unit 342 separately reads information to be displayed on the sub display unit 14 from the main control unit 38 and displays it. Since it must be written in the image storage unit 343, the image information itself in the display image storage unit 343 is switched from the image data based on the television broadcast to the display information on the sub-display, and the television broadcast to be read out for recording. Will be lost from the display storage unit 343, and recording cannot be continued.
Further, when the sub-display unit 14 is configured to switch the screen of the television broadcast when the closed state is set, the television broadcast is displayed in order to display the sub-display unit 14 having a display capability lower than that of the main display unit 13. Therefore, the image data in the drawing control unit 342 is switched to the processed image data. That is, the image data from the television broadcast to be read out is different because it is recorded before the closed state is detected and after the closed state is detected, and the user feels uncomfortable when viewing the recorded one later. turn into.
By configuring the main display unit 13 to continue display during recording in step S602, the display image storage unit 343 is a low-priced image display control unit that does not have an independent storage unit for the main sub. However, the above-described problems can be avoided, and a low-priced portable terminal device can be obtained without the screen being interrupted or feeling uncomfortable during recording.

In the display of TV broadcast by the main display unit 13, the drawing control unit 342 draws the image data decoded by the image decoding unit 33 acquired through the image input acquisition unit 341 in the main display image storage unit 343, Under the control of the main control unit 38, the drawing control unit 342 reads out image data from the main display image storage unit 343 in synchronization with the display timing, and supplies the image data to the main display unit 13 via the display control unit 346. Is done.
Here, the image data drawn in the main display image storage unit 343 is also supplied to the image encoding unit 345 as recorded image data, and the image data encoded by the image encoding unit 345 is mainly used for recording. It is supplied to the control unit 38.

  The recorded image data is stored in the memory 40 under the control of the main control unit 38. In recording and reproduction, the image data read from the memory 40 is decoded again by the image decoding unit 33, and the main display image storage unit 343 or the sub display image storage unit via the image input acquisition unit 341 by the drawing control unit 342. It is drawn at 344.

When the display of the television broadcast image data on the main display 13 is continued in step S603, the main control unit 38 controls the display control unit 346 to turn off the backlight of the main display 13 or reduce the illuminance. Power-saving control such as a file is performed (step S604).
That is, when power saving control such as reducing the brightness of the output image is performed by the drawing control unit 342, the recorded image is also darkened. Therefore, the drive circuit of the main display unit 13 is controlled here, That is, power saving control is performed at the stage of LCD driving. As a result, even when the display is continued on the main display unit 13 that is hidden in each other's housing to maintain recording even in the closed state, not only can the power consumption be reduced, Since the amount of light leaking from between the housings can be reduced, there is also an effect that the user does not need to be aware that the main display unit 13 continues to operate.

Next, also using FIG. 6, the main control unit 38 is a side key installed on the side surface of the receiving housing 2 or the transmitting housing 3 (exposed key disposed in the closed state so as not to be hidden by the housing). ) Will be described.
That is, when the side key press is detected (step S605), it is determined whether or not the receiving housing 2 and the transmitting housing 3 are in a closed state (step S606). If it is determined that it is not in the closed state (step S606 “No”), functions that are originally assigned, such as normal forced lighting of the backlight, are executed. If it is determined that the television broadcast is in the closed state (step S606 “Yes”), whether or not the television broadcast is being recorded is determined based on the presence or absence of a flag. If the television broadcast is not being recorded (step S602 “No”). The display of the sub display unit 14 is forcibly performed. That is, if the display on the sub display unit 14 disappears due to power saving or the like, the terminal information is read from the display storage unit 343 again and the drawing control unit 342 causes the drawing to be drawn. When the television broadcast is being recorded (step S602 “Yes”), the display on the main display unit 13 is continued without switching to the sub display unit 14 (step S603).
This avoids the following problem that occurs when the display is switched to the sub display unit 14 without determining whether or not recording is in progress when the side key is pressed in the closed state. I can do it. That is, when the display on the main display unit 13 is continuously recorded in the closed state and the television broadcast is recorded, when the display is started on the sub display unit 14 by pressing the side key, the drawing control unit 342 Since the information to be displayed on the sub display unit 14 must be read from the main control unit 38 and written to the display image storage unit 343, image data from the television broadcast to be read for recording is displayed from the display image storage unit 343. It is possible to avoid the problem that the video recording is lost and the same recording as before the side key is pressed cannot be continued.
At this time, if the display by the main display unit 13 is set to the power saving state by turning off the backlight or the like, not only can the power consumption be reduced a little, but also between the mutual housings. There is also an effect that the amount of light leaking is reduced and the user is not required to be extra conscious.

As described above, according to the embodiment of the present invention, the main control unit 38 does not perform display switching even if the receiving housing 2 and the transmitting housing 3 are in the closed state while recording is in progress. By controlling as described above, the recording operation of the portable terminal device having the folding housing can be continuously performed.
In addition, during the recording operation, the power consumption can be suppressed by setting the display on the main display unit 13 to the power saving mode. In particular, since the backlight is not related to the recording, a remarkable effect can be obtained by turning off the backlight.

  The main control unit 38 is specifically composed of a CPU and a memory, and the CPU sequentially reads and executes a program recorded in the memory, thereby controlling the peripheral LSI. When the transmission case 3 is in the closed state, the display control of the image by the image display control unit 34 from the main display unit 13 to the sub display unit 14 is executed except during the recording of the television broadcast.

  The peripheral LSI referred to here is a main display unit 13, a sub display unit 14 mounted on the receiver case 2, and a TV tuner 32 mounted on the circuit board 30 of the transmitter case 3, An image decoding unit 33, an image display control unit 34, a communication processing unit 36, an audio processing unit 37, and a key input processing unit 39 are all connected to the main control unit 38 via an input port or an output port (not shown). To be connected.

The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and includes design and the like within the scope not departing from the gist of the present invention.
Although the description has been given using a mobile phone as an example of the mobile terminal device in the present invention, the present invention is not limited to this, and in PDA (Personal Digital Assistance), PHS (Personal Happy phone system), portable devices, and navigation systems. It goes without saying that is also applicable.

It is a figure which shows the external appearance structure of the portable terminal device which concerns on embodiment of this invention. It is a figure which shows the external appearance structure of the portable terminal device which concerns on embodiment of this invention. It is a figure which shows the external appearance structure of the portable terminal device which concerns on embodiment of this invention. It is a block diagram which shows an example of a structure of the signal processing system of the portable terminal device which concerns on embodiment of this invention shown in FIG. FIG. 5 is a diagram illustrating an example of an internal configuration of an image display control unit 34 illustrated in FIG. 4. It is the flowchart quoted in order to demonstrate operation | movement of the portable terminal device which concerns on embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Portable terminal device, 2 ... Reception housing | casing (1st housing | casing), 3 ... Transmission housing | casing (2nd housing | casing), 13 ... Main display part (1st display part), 14 ... Sub display Unit (second display unit), 32 ... TV tuner, 33 ... image decoding unit, 34 ... image display control unit, 38 ... main control unit, 39 ... key input processing unit, 40 ... memory, 341 ... image input acquisition unit 342: Drawing control unit, 343: Main display image storage unit, 344: Sub display image storage unit, 345: Image encoding unit, 346: Display control unit.

Claims (8)

A first housing, possess a second housing formed coupled the the first casing and the open and closed states, a first display portion and a second display unit ,
An image decoding unit for receiving television broadcasts and obtaining television image data;
An image display control unit for displaying the television image data on one of the first and second display units;
When a change in the open / close state of the first and second housings occurs while the television image data is being displayed,
When the TV image data is not recorded, the display destination of the TV image data is switched from one of the first and second display units to the other,
If you are recording the television image data, a main control unit for controlling said first and said image display control unit not to perform the switching to the second other from one of the display unit,
Portable terminal device characterized by Ru with a. The image display control unit
An image input acquisition unit for acquiring the television image data and the generated image data generated by the main control unit;
An image storage unit for acquiring and temporarily storing an image to be displayed on the first display unit or the second display unit from the image input acquisition unit;
A drawing control unit for outputting an image temporarily stored in the image storage unit to the first display unit or the second display unit,
2. The mobile phone according to claim 1, wherein the drawing control unit reads television image data temporarily stored in the image storage unit and transfers the television image data to the main control unit during the recording. Terminal device. The portable terminal device according to claim 2, wherein the image input acquisition unit supplies only the television image data to the image storage unit during the recording. The first display unit is arranged at a position hidden by the first and second housings in the closed state,
The portable device according to any one of claims 1 to 3, wherein the second display unit is arranged at a position that is not hidden by the first and second housings in the closed state. Terminal device. 5. The mobile terminal according to claim 1, wherein the main control unit sets the first display unit to a power saving state when the video recording is in the closed state and the video recording. apparatus. The first display unit has a backlight;
The mobile terminal device according to claim 5, wherein the power saving state is that the backlight is turned off. The second display unit and the exposure key are provided at positions that are not hidden by the first and second housings in the closed state ;
When the main key is not in the recording state when the exposure key is pressed, the main control unit performs display by the second display unit and is in the recording state. The mobile terminal device according to claim 1, wherein the display is not switched to display by the second display unit. A first housing, a second housing coupled to the first housing so as to be able to form an open state and a closed state, and a first display unit,
A second display unit and an exposure key provided at positions not hidden by the first and second housings in the closed state;
An image decoding unit for receiving television broadcasts and obtaining television image data;
An image display control unit for displaying the television image data on one of the first and second display units;
When the exposure key is pressed,
When the television image data is not recorded, the television image data is displayed by the second display unit,
When recording the television image data, a main control unit that controls the image display control unit so as not to display the television image data by the second display unit;
A portable terminal device comprising:

Images