JP4954766B2 - Mobile terminal device - Google Patents

Description

  The present invention particularly relates to a mobile terminal device suitable for use in a mobile phone having a display device that can cause burn-in as a display unit.

In recent years, an increasing number of portable terminal devices such as mobile phones are capable of receiving television broadcasts such as terrestrial analog broadcasts and one-segment (one-segment) broadcasts. One-segment broadcasting is an abbreviation for “one-segment partial reception service for mobile phones and mobile terminals”, and is terrestrial digital television broadcasting for mobile terminal devices such as mobile phones.
However, television broadcasting is generally a horizontally long screen (for example, the resolution of one-segment broadcasting is 320 × 180). Mobile phone screens are generally vertically long, and in order to display horizontally long TV broadcasts, TV broadcasts can be reduced or displayed using the mobile phone screen in landscape orientation. It is necessary to do.
Patent Document 1 discloses a foldable mobile phone that is suitably displayed on a horizontally long screen when a horizontally long content is reproduced by changing the casing including the screen horizontally.

  Nowadays, liquid crystal displays (LCD) are the mainstream display devices for mobile phones. However, LEDs require a backlight and consume a large amount of power. There has been a demand for adopting a display device with lower power consumption as a mobile phone that has a limited amount of power that can be used because it is driven by a battery.

  In recent years, organic EL (hereinafter referred to as OLED (Organic Light-Emitted Diode)) displays have attracted attention as display devices that can replace LCDs. The high-resolution, thin and lightweight features of LCDs, and CRT (Cathode Ray tube) displays Adoption is being considered as a new display device that combines the features of high contrast and wide viewing angle.

An OLED is a self-luminous display device, like a CRT display or a plasma display. An anode electrode made of ITO (Indium Tin Oxide) is formed on a glass substrate, and a hole transport layer, a light emitting layer, and an electron transport are formed on the anode electrode. A cathode electrode composed of an organic layer composed of layers and a metal electrode is formed.
The LCD is controlled by the amount of light incident on the liquid crystal panel by the backlight, whereas the OLED is controlled by the current flowing through the organic layer, so that the non-light emitting part is completely black and the contrast is high. It is very expensive.

Each element of the OLED emits light in a single color such as green, blue, and red, and a display capable of full color display can be created by arranging a large number of pixels having these sets. However, since each element of the OLED changes the color by energizing the organic substance, the organic substance deteriorates in proportion to the time during which the display is performed, that is, the time when the organic substance is energized, and the emission luminance of the element decreases. There is a possibility that.
For this reason, luminance deterioration occurs in element units due to deterioration of organic matter, and a phenomenon called display burn-in occurs. Specifically, when the same pixel is caused to emit light of the same color at a high luminance for a long time, the organic matter of the light emitting display element in the pixel deteriorates and the light emission luminance of the element decreases. Called. When burn-in occurs, the color of the burned-in pixel and the adjacent pixel are different from each other even though the same color is displayed.

Therefore, various terminals that have taken measures against the above-described burn-in phenomenon have been proposed (see, for example, Patent Documents 2 to 5).
Patent Document 2 discloses a wireless communication terminal that sets a display speed for data display and displays an image at the set speed.
Patent Document 3 discloses a display device that performs switching between inverted display and non-inverted display when connection of an external power supply is detected.
Patent Document 4 discloses a terminal device that divides a display area into a plurality of areas and changes the display area according to time.
Japanese Patent Laid-Open No. 2004-26883 discloses that the white color of an image is calculated by calculation so that the RGB ratio constituting the white display portion of the image becomes smaller for the color corresponding to the light emitting element with a large deterioration rate with time of RGB. A mobile phone that determines the chromaticity coordinates of a display is disclosed.
JP 2003-319043 A JP 2002-268601 A JP 2003-186434 A JP 2003-223160 A JP 2003-280588 A

  When a moving image is displayed on a mobile terminal device such as a mobile phone having an OLED as a display screen, such as a one-segment television broadcast, the pixel at a specific position continues to display the same color for a long time. Therefore, it is not necessary to worry about the burning of the OLED as compared with the case of still image display. However, when one-segment broadcasting is displayed on the OLED, as shown in FIG. 1, as shown in FIG. 1, a full screen display (FIG. 1A) that displays the TV broadcast screen in the whole screen and the screen is divided horizontally. A horizontally divided display (FIG. 1 (b)) for displaying a television broadcast screen and an information column for displaying information such as a broadcasting station, a channel and a program name; There are a plurality of display forms such as a vertically divided display (FIG. 1C) for displaying the information column, and there is a possibility that burn-in may occur depending on the display form.

In the full-screen display shown in FIG. 1A, since a moving image is displayed on the entire screen of the OLED, there is no need to worry about burn-in as described above. However, in the horizontally long divided display shown in FIG. 1B and the vertically long divided display shown in FIG. 1C, since the moving image is displayed on the pixel of the television broadcast portion, the display color frequently changes. However, since the background color is fixed to a specific color in the pixels in the information column portion, there is a clear brightness difference from the television broadcast portion. For this reason, at the boundary between the television broadcast portion and the information column display portion, a difference in the degree of pixel degradation is likely to occur based on this brightness difference, and the display capability between the television broadcast portion pixel and the information column portion pixel There is a disadvantage in that there is a difference in image quality (burn-in occurs).
Such local burn-in cannot be prevented by the techniques disclosed in Patent Documents 1 to 5 described above.

  In order to eliminate the disadvantages described above, an object of the present invention is to provide a portable terminal device that makes image sticking that occurs in a display portion inconspicuous even when a screen including a stationary portion is displayed for a long time.

  In order to achieve the above-described object, a mobile terminal device according to a first aspect of the present invention includes a plurality of pixels having a plurality of light emitting elements, and performs display by controlling a light emitting state for each of the plurality of display elements. A video signal acquisition unit that receives a broadcast wave, an operation unit that receives an operation, and information related to the broadcast video and / or the information when the broadcast video is displayed on the display unit based on the broadcast wave A control unit capable of controlling the display unit to display additional information, which is information related to an operation by the operation unit, with an additional information display area for displaying the additional information on the display unit. In the state where it is detected that the charger is connected when the broadcast video is displayed on the display unit, the additional information display area is associated with the display unit. The broadcast image is controlled to be displayed in the first display state in which it is displayed in full screen, and the additional information display area is accompanied in the display unit in a state where it is not detected that the charger is connected. The broadcast video is controlled to be displayed in the second display state.

  Preferably, the control unit activates the video signal acquisition unit at a preset time, and broadcast video on the display unit at the preset time based on a broadcast wave acquired by the video signal acquisition unit. In the timer process, when the broadcast video is displayed on the display unit, a first display that displays the broadcast video in full screen without displaying the additional information display area is displayed. A second display that displays the broadcast video with the additional information display area on the display unit when the broadcast video is displayed on the display unit without being controlled based on the timer process. Control to display the status.

  According to a second aspect of the present invention, there is provided a portable terminal device comprising a plurality of pixels each having a plurality of light emitting elements, a display unit for performing display by controlling a light emitting state for each of the plurality of display elements, and an image for receiving broadcast waves. When a broadcast video is displayed on the display unit based on the broadcast wave, a signal acquisition unit, an operation unit that receives an operation, and / or information related to the broadcast video and / or information related to an operation by the operation unit A control unit capable of controlling the display unit so as to display some additional information with an additional information display area to be displayed on the display unit, and the control unit acquires the video signal at a preset time. And a timer process for displaying the broadcast video on the display unit at the preset time based on the broadcast wave acquired by the video signal acquisition unit can be executed. When the broadcast video is displayed on the display unit, the broadcast video is controlled to be displayed in the first display state in which the additional information display area is not displayed together with the full-screen display, and based on the timer process. When the broadcast video is displayed on the display unit, the display unit is controlled to display in the second display state in which the broadcast video is displayed with the additional information display area.

  Preferably, the control unit is capable of detecting connection with an external charger, and when displaying the broadcast video on the display unit, in a state where the charger is detected, Control is performed to display the broadcast video in the first display state in which the additional information display area is not displayed on the display unit in a full screen display, and in a state where it is not detected that the charger is connected, The display unit is controlled to display in the second display state in which the broadcast video is displayed with the additional information display area.

  Preferably, when the broadcast video based on the broadcast wave is switched to a commercial video, the control unit lowers the display brightness when the display unit is displayed in the second display state. When the display unit is displayed in the first display state, the display luminance is not changed by the display unit.

  ADVANTAGE OF THE INVENTION According to this invention, even when the screen containing a still part is displayed for a long time, the portable terminal device which makes the burn-in which arises in a display part inconspicuous can be provided.

Hereinafter, a mobile phone 100 will be described as an example of the mobile terminal device of the present invention.
FIG. 2 is a block diagram showing an example of the internal configuration of the mobile phone 100.
As shown in FIG. 2, the mobile phone 100 includes a communication unit 1, a television broadcast receiving unit 2, an operation unit 3, an audio processing unit 4, a speaker 5, a microphone 6, a display unit 7, and a storage unit. 8, a power supply unit 9, and a control unit 10.

FIG. 3 is a diagram showing an example of the appearance of the mobile phone 100.
As shown in FIG. 3, in the mobile phone 100, an upper housing 101 and a lower housing 102 are connected by a hinge portion 103 so as to be opened and closed.
3A shows a state where the casing of the mobile phone 100 is opened, and FIG. 3B shows a state where the casing of the mobile phone 100 is closed.
The upper housing 101 includes a speaker 5 and a display unit 7.
The lower housing 102 includes the operation unit 3 and the microphone 6.

The communication unit 1 captures a plurality of communication systems, performs wireless communication with a base station (not shown) connected to a communication network, and transmits and receives various data. The various data includes voice data at the time of voice call, mail data at the time of mail transmission / reception, web page data at the time of browsing the web, and the like.
The television broadcast receiver 2 receives a television broadcast signal transmitted from a broadcast station (not shown). In the present embodiment, the television broadcast is assumed to be a digital television broadcast such as a one-segment broadcast, and the television broadcast signal includes a video signal, an audio signal, and character data. The television broadcast receiver 2 corresponds to the video signal acquisition unit of the present invention.

The operation unit 3 includes keys to which various functions such as a power key, a call key, a numeric key, a character key, a direction key, a determination key, and a call key are assigned, and these keys are operated by the user. If it is, a signal corresponding to the operation content is generated and output to the control unit 10 as a user instruction.
The audio processing unit 4 processes an audio signal output from the speaker 5 and an audio signal input from the microphone 6. That is, the sound input from the microphone 6 is amplified, subjected to analog / digital conversion, further subjected to signal processing such as encoding, converted into digital sound data, and output to the control unit 10. Further, the audio data supplied from the control unit 10 is subjected to signal processing such as decoding, digital / analog conversion, amplification, etc., converted into an analog audio signal and output to the speaker 5. The audio processing unit 4 processes the audio signal of the television broadcast received by the television broadcast receiving unit 2 and outputs the signal from the speaker 5 or the like. The sound processing unit 4 may output sound from headphones or earphones connected to a terminal (not shown).

In the present embodiment, the display unit 7 is configured using an organic EL (Electro-Luminescence) (OLED) panel, and displays an image corresponding to a video signal supplied from the control unit 10. For example, the telephone number of the callee at the time of outgoing call, the telephone number of the caller at the time of incoming call, the contents of received mail or outgoing mail, date, time, remaining battery level, success / failure of outgoing call, standby screen, received by the TV broadcast receiving unit 2 Various information and images such as TV broadcast video and text data are displayed.
Hereinafter, the OLED display will be briefly described.

An example of the configuration of the OLED display is shown in FIG.
As shown in FIG. 4, the OLED display includes a timing control unit 71, a column driving unit 72, a row driving unit 73, an OLED power supply unit 74, and an OLED panel 75.
A video signal (VIDEO) output from the control unit 10 described later is separated into an RGB signal, a vertical synchronization (VD), and a horizontal synchronization signal (HD) by the timing control unit 71. Among these signals, the RGB signals are once held in an analog latch by the column driving unit 72, and then output in parallel for the number of columns of the OLED panel 75 at a specified timing. Each output signal is converted from a voltage to a current value to drive the column at a constant current. Thereby, the display is updated every predetermined cycle.

  VD and HD are converted to a predetermined voltage by the row driving unit 73, and determine the ON or OFF state of the pixel selected by the constant current signal output from the column. For example, assuming an OLED panel 75 having m pixels in the horizontal direction and n pixels in the vertical direction, the OLED panel 75 has m column electrodes and n row electrodes. The n row electrodes are sequentially scanned from the first row to the n-th row of the row electrodes, and are activated by a constant current signal driven through the column electrodes only for a certain operation time. In this way, sequential scanning is switched from the first row electrode to the lowest row electrode in the nth row, and the address for one screen is updated. The image for one screen generated by the scanning pulse train from the first row to the n-th row at this time is called a frame, and this screen scanning is repeatedly performed to display the images continuously.

  The storage unit 8 stores various data used for various processes of the mobile phone 100. For example, a computer program provided in the control unit 10, an address book for managing personal information such as a telephone number and an email address of a communication partner, an audio file for playing ringtones and alarm sounds, an image file for a standby screen, Various setting data, temporary data used in the program processing, etc. are stored. The above-described storage unit 8 is configured by, for example, a nonvolatile storage device (nonvolatile semiconductor memory, hard disk device, optical disk device, etc.), a randomly accessible storage device (eg, SRAM, DRAM), or the like.

  The power supply unit 9 is a power supply device for supplying power to each component of the mobile phone 100. The power supply unit 9 includes a storage battery such as a lithium ion secondary battery. The power source unit 9 can be charged by being connected to an external power source by the user, for example, when the remaining battery level is low. The power supply unit 9 further includes a charge detection unit 91 that detects whether charging is in progress. If the power supply unit 9 is charged from an external power supply, the charge detection unit 91 detects this and notifies the control unit 10 described later of this.

The control unit 10 comprehensively controls the overall operation of the mobile phone 100. That is, various processes of the mobile phone (voice calls performed via a circuit switching network, creation and transmission / reception of e-mails, browsing of Internet websites, etc.) are executed in an appropriate procedure according to the operation of the operation unit 3. As described above, the operation of each block described above (transmission / reception of signals in the communication unit 1, input / output of audio in the audio processing unit 4, display of images on the display unit 7, etc.) is controlled.
The control unit 10 includes a computer (microprocessor) that executes processing based on a program (operating system, application program, etc.) stored in the storage unit 8, and performs the above-described processing according to a procedure instructed in this program. Execute. That is, instruction codes are sequentially read from programs such as an operating system and application programs stored in the storage unit 8 to execute processing.

  Further, when displaying the television broadcast, character data, or the like based on the television broadcast signal received by the television broadcast receiver 2, the control unit 10 displays it in one of a plurality of display forms shown in FIG. I do. That is, for example, display is performed in a display form set in advance by an operation or the like via the operation unit 3 of the user in advance. Information relating to the display form set in advance is stored in, for example, the storage unit 8.

  Hereinafter, FIG. 1A is a full-screen display mode in which a television broadcast screen is displayed on the entire screen with the screen in a landscape orientation, and FIG. 1B is divided into a television broadcast screen and a current display by dividing the screen in a landscape orientation. Horizontally divided display form that displays a field for displaying additional information for displaying information such as the broadcasting station, channel, program name, etc., and FIG. This is referred to as a vertically divided display form for displaying a field for displaying information.

In the full screen display form shown in FIG. 1A, the display unit 7 displays only the video screen 200. However, in the horizontally long split display form shown in FIG. A data display column 210 is displayed. In the vertically long divided display form shown in FIG. 1C, the display unit 7 also has a video screen 202 and a character data display field 211 as well as operations related to the broadcast being displayed (program information acquisition, etc.) as in the horizontally long divided display form. And an operation information display field 212 for guidance.
Here, the character data and the characters for operation guidance displayed in the operation information display column 212 are added information of the present invention, the television broadcast is the broadcast video of the present invention, the character data display columns 210 and 211 and the operation information are displayed. The display columns 212 correspond to the additional information display areas of the present invention.
1A corresponds to the first display state of the present invention, and the horizontally or vertically divided display forms illustrated in FIGS. 1B and 1C correspond to the second display state of the present invention. is doing.

In the full screen display form shown in FIG. 1A, there is no information display column for displaying additional information, and a moving image is displayed on the full screen of the display unit 7. Therefore, even if a television broadcast is displayed for a long time in the full screen display form, there is little risk of image sticking due to deterioration of each pixel of the display unit 7.
However, in the horizontally long divided display form shown in FIG. 1B and the vertically long divided display form shown in FIG. 1C, character data display fields 210 and 211 and an operation information display field 212 for displaying additional information. There is a risk of burn-in.

When displaying the television broadcast on the display unit 7, the control unit 10 performs the following three processes in order to prevent the display unit 7 from burning in as much as possible.
The first process is a process for forcibly displaying a full screen display form (hereinafter referred to as a display process during charging) regardless of the set display form when the mobile phone 100 is in a charging state. Called).
When a television broadcast is viewed with the mobile phone 100 connected to the charger, a long-time viewing is expected. For this reason, when the display of the television broadcast is instructed by the user while the mobile phone 100 is being charged, the control unit 10 displays the full screen display form shown in FIG. 7 causes the television broadcast to be displayed.

Hereinafter, an operation example in the display process during charging of the control unit 10 will be described.
FIG. 5 is a flowchart for explaining an operation example in display processing during charging of the control unit 10.
Step ST1:
The charge detection unit 91 detects whether or not charging is in progress. If charging is in progress, the process proceeds to step ST2. If not, the process proceeds to step ST3.
Step ST2:
The control unit 10 causes the display unit 7 to display a television broadcast in a full screen display form.

Step ST3:
The control unit 10 causes the display unit 7 to display a television broadcast in a preset display form.
In the above processing, the charge detection unit 91 may detect whether or not the charging state is in a charged state at the start of the display of the television broadcast, and may determine the display form of the television broadcast to be displayed based on the result. When a charger is connected while a television broadcast is being displayed on the display unit 7, the display form of the display unit 7 may be changed when the charger is connected and charging is started.

The second process is to forcibly display in the full screen display form regardless of the set display form when automatically starting the display on the television broadcast display unit 7 at the preset time. It is a process to perform. Note that the process of displaying a television broadcast at an automatically set time (so-called alarm time) is hereinafter referred to as a timer process.
When the set time set in advance by the user via the operation unit 3 is reached, the control unit 10 activates the television broadcast receiving unit 2 to receive a television broadcast signal, and causes the display unit 7 to display the television broadcast based on this. Timer processing can be performed. The preset set time may be stored in advance in the storage unit 8, for example.
Here, when displaying the television broadcast on the display unit 7 by the timer process, the control unit 10 is expected to increase the cumulative display time of the television broadcast on the display unit 7 by the timer process. In order to minimize the risk of burn-in, it is displayed in full screen display form.

Hereinafter, an operation example of the control unit 10 during timer processing will be described.
FIG. 6 is a flowchart for explaining an operation example during timer processing of the control unit 10.
Step ST11:
If the preset time is reached, the process proceeds to step ST12. If not, step ST11 is repeated.
Step ST12:
The control unit 10 activates the television broadcast receiving unit 2 to receive a television broadcast wave.
Step ST13:
The control unit 10 causes the display unit 7 to display a television broadcast in a full screen display form.

The third process is to display the television 7 on the display unit 7 when the television broadcast is switched from a program to a commercial and the display brightness is not full screen display mode. This is processing for causing the unit 7 to perform display.
The control unit 10 detects that the television broadcast being displayed on the display unit 7 has been switched to a commercial, and when the display mode at the time of switching to the commercial is a horizontally long and vertically long divided display mode that may cause burn-in. In order to reduce the possibility of burn-in as much as possible, the display brightness of the display unit 7 is lowered and displayed, and in the case of the full screen display form, the display brightness is displayed without being changed.
At the time of commercial, since important information is not displayed in the character data display fields 210 and 211 and the operation information display field 212 which are additional information display fields, the character data display fields 210 and 211 and the operation information display field 212 are displayed. In the case of the horizontally long and vertically long divided display mode, the risk of burn-in of the display unit 7 can be minimized by displaying with reduced brightness.

When displaying the display with the brightness lowered, the control unit 10 may display the brightness with a predetermined frequency lower than the brightness set in advance by the user, for example. In addition to lowering the brightness, the gradation of the entire screen of the display unit 7 is lowered, the static part in the display screen (the background part of the character data display fields 210 and 211 and the operation information display field 212, It may be displayed by reversing the gradation of the battery remaining amount display or radio wave status display called pictogram, or by lowering the gradation of the stationary part. By these operations, the risk of burn-in of the display unit 7 can be further suppressed.
In addition, the detection method which detects having switched to commercial is not limited in this invention. Known methods can be used. For example, there is a method of detecting the presence or absence of additional information and designating a portion without additional information as a commercial.

An example of the operation of the control unit 10 during a commercial will be described.
FIG. 7 is a diagram for explaining an operation example of the control unit 10 during a commercial.
Step ST21:
If it is detected that the television broadcast displayed on the display unit 7 has been switched to a commercial, for example, by detecting a break in the additional information, the process proceeds to step ST22. If not, step ST21 is repeated.
Step ST22:
If the television broadcast is displayed in the full screen display form, the process proceeds to step ST23, and if not, the process proceeds to step ST24.

Step ST23:
The control unit 10 causes the display unit 7 to continue display with the same luminance.
Step ST24:
The control unit 10 displays the display luminance of the display unit 7 lower than the luminance preset by the user.

Step ST25:
If the commercial ends, the process proceeds to step ST26, and if not, step ST25 is repeated.
Step ST26:
The control unit 10 causes the display unit 7 to display the television broadcast with the display luminance before switching to the commercial.

  As described above, according to the mobile phone 100 of this embodiment, when the mobile phone 100 is in a state of being charged, the control unit 10 is forcibly controlled regardless of the set display form. Display in screen display form. In other words, when viewing a television broadcast with a charger connected, which is expected to be viewed for a long time, the television broadcast is displayed on the display unit 7 in a full-screen display mode with a low risk of burn-in. Therefore, the risk of burn-in in the display section 7, particularly in the display column for additional information, can be minimized.

  Further, the control unit 10 does not depend on the set display mode when starting the display on the display unit 7 of the television broadcast at a preset time set to automatically start the display of the television broadcast. , Force the display in full screen display form. Since the accumulated display time of the television broadcast on the display unit 7 by the timer process is expected to be long, the risk of burn-in of the display unit 7 can be minimized by displaying in the full screen display mode.

  In addition, when the television broadcast is switched from the program to the commercial when the television broadcast is displayed on the display unit 7, the control unit 10 reduces the display brightness when the television broadcast is switched from the program to the commercial. Display on the unit 7. At the time of commercial, important information is not displayed in the character data display fields 210 and 211 which are display fields for additional information. Therefore, by causing the display unit 7 to display at a reduced display luminance, there is a risk of the display unit 7 being burned. Can be minimized.

The present invention is not limited to the embodiment described above.
That is, when implementing the present invention, various modifications, combinations, sub-combinations, and alternatives may be made to the components of the above-described embodiments within the technical scope of the present invention or an equivalent scope thereof.

  In the embodiment described above, the case where an OLED display is used as the display unit 7 has been described, but the present invention is not limited to this. The present invention is applicable to any display device having a plurality of RGB light emitting elements. As an example of a display device having other RGB light emitting elements in the OLED display, there is a plasma display, for example, and the present invention can be applied to a plasma display.

Moreover, although the mobile telephone 100 was demonstrated as an example of the portable terminal device of this invention by the form mentioned above, this invention is not limited to this. That is, the present invention can be applied to all portable electronic devices having a display device having a plurality of RGB light emitting elements such as PDA (Personal Digital Assistants).
In the above-described embodiment, the processing when displaying a television broadcast such as a one-segment broadcast on the display unit 7 has been described, but the present invention is not limited to this. For example, when displaying an image (moving image) and related information related to it on the same screen, such as when shooting an operation by a camera (not shown) and viewing a captured video, the video signal and additional information related thereto are displayed. The present invention is applicable to portable electronic devices.
Furthermore, in the above-described embodiment, the television broadcast receiving unit 2 receives a one-seg broadcast television broadcast signal, but the present invention is not limited to this. That is, the television broadcast receiving unit 2 may receive an analog terrestrial broadcast and the control unit 10 may cause the display unit 7 to display it.

  In the present embodiment, a digital broadcast receiver is shown as an example of the television broadcast receiver 2, and the additional information is character data acquired by the television broadcast receiver 2, but the present invention is not limited to this. Not. For example, when the control unit 10 receives and displays a television broadcast, the communication unit 1 uses the broadcasting station or the communication business based on the information about the channel or broadcasting station selected by the television broadcast receiving unit 2. Character data (additional information) related to the program being broadcast can also be obtained by accessing the server operated by the user. This method is effective, for example, when receiving an analog broadcast in which a large amount of character data (additional information) cannot be sent.

In the above-described embodiment, an example has been described in which character data acquired mainly by the television broadcast receiving unit 2 is handled as additional information display. Such additional information is not acquired only by the television broadcast receiving unit 2, but may be handled in the same manner in character data acquired by the communication unit 1 and operation information display as operation guidance. That is, only the video display is performed in the full-screen display mode, and in the horizontal and vertical split display mode, the character data acquired by the communication unit 1 and the operation information display column are displayed as additional information in addition to the video display.
That is, the additional information is not limited to character data. As mentioned in the embodiment, when receiving and displaying a television broadcast, the control unit 10 not only displays the video and character data of the television broadcast on the display unit 7, but also acquires information about the program being displayed. Display an operation information display column (for example, the operation information display column 212 in FIG. 1C) in accordance with the character data, which provides guidance for an operation for instructing a channel or volume change. Is also possible. Since the operation information display column 212 also has a specific background color, the specific color is continuously displayed, and only the pixels in the specific area tend to be deteriorated, so that the video information is displayed. Differences in deterioration tend to occur between areas. However, by treating it as one of the additional information in the present invention, it is possible to prevent deterioration of the pixel corresponding to the operation information display column 212 as much as possible.

  In the above-described embodiment, the folding type mobile phone 100 is shown as a preferable example. However, the present invention is not limited to this, and the present invention can also be applied to a straight type, a slide type, and a biaxial type folding type. It is.

FIG. 1 is a diagram for explaining a specific example of a display form of a television broadcast on a mobile phone. FIG. 2 is a block diagram illustrating a configuration example of the mobile phone 100. FIG. 3 is a diagram showing an example of the appearance of the mobile phone 100. FIG. 4 is a diagram illustrating an example of the configuration of the OLED display. FIG. 5 is a flowchart for explaining an operation example in display processing during charging of the control unit 10. FIG. 6 is a flowchart for explaining an operation example during timer processing of the control unit 10. FIG. 7 is a diagram for explaining an operation example of the control unit 10 during a commercial.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 100 ... Mobile phone, 101 ... Upper housing | casing, 102 ... Lower housing | casing, 103 ... Hinge part, 1 ... Communication part, 2 ... Television broadcast receiving part, 3 ... Operation part, 4 ... Sound processing part, 5 ... Speaker, 6 DESCRIPTION OF SYMBOLS 7 ... Display part 71 ... Timing control part 72 ... Column drive part 73 ... Row drive part 74 ... OLED power supply part 75 ... OLED panel 8 ... Memory | storage part 9 ... Power supply part 91 ... Charging Detection unit, 10 ... control unit

Claims (5)

A display unit configured by a plurality of pixels having a plurality of light emitting elements, and performing display by controlling a light emitting state for each of the plurality of display elements;
A video signal acquisition unit for receiving broadcast waves;
An operation unit for receiving an operation;
When displaying a broadcast video on the display unit based on the broadcast wave, additional information that causes the display unit to display additional information that is information related to the broadcast video and / or information related to operation by the operation unit A control unit capable of controlling the display unit to display with a display area;
With
The controller is
It can detect the connection with an external charger,
When displaying the broadcast video on the display unit, in a state where it is detected that the charger is connected, the broadcast video is displayed on the full screen without displaying the additional information display area on the display unit. In a second display state in which the broadcast video is displayed with the additional information display area on the display unit in a state where the display is controlled to be displayed in one display state and the charger is not detected as connected. A portable terminal device that is controlled to be displayed. The controller is
The video signal acquisition unit is activated at a preset time, and a timer process for displaying the broadcast video on the display unit at the preset time based on the broadcast wave acquired by the video signal acquisition unit can be executed. Yes,
When displaying the broadcast video on the display unit in the timer process, control is performed so that the broadcast video is displayed in a first display state in which the additional information display area is not displayed, and the full-screen display is performed. The display is controlled so as to be displayed in a second display state in which the broadcast video is displayed with the additional information display area when the broadcast video is displayed on the display unit without being based on processing. The portable terminal device described. A display unit configured by a plurality of pixels having a plurality of light emitting elements, and performing display by controlling a light emitting state for each of the plurality of display elements;
A video signal acquisition unit for receiving broadcast waves;
An operation unit for receiving an operation;
When displaying a broadcast video on the display unit based on the broadcast wave, additional information that causes the display unit to display additional information that is information related to the broadcast video and / or information related to operation by the operation unit A control unit capable of controlling the display unit to display with a display area;
With
The controller is
The video signal acquisition unit is activated at a preset time, and a timer process for displaying the broadcast video on the display unit at the preset time based on the broadcast wave acquired by the video signal acquisition unit can be executed. Yes,
When displaying the broadcast video on the display unit in the timer process, control is performed so that the broadcast video is displayed in a first display state in which the additional information display area is not displayed, and the full-screen display is performed. When the broadcast video is displayed on the display unit without being based on processing, the display unit is controlled to be displayed in the second display state in which the broadcast video is displayed with the additional information display area. Mobile terminal device. The controller is
It can detect the connection with an external charger,
When displaying the broadcast video on the display unit, in a state where it is detected that the charger is connected, the broadcast video is displayed on the full screen without displaying the additional information display area on the display unit. In a second display state in which the broadcast video is displayed with the additional information display area on the display unit in a state where the display is controlled to be displayed in one display state and the charger is not detected as connected. The mobile terminal device according to claim 3, wherein the mobile terminal device is controlled to be displayed. When the broadcast video based on the broadcast wave is switched to a commercial video, the control unit reduces the display brightness on the display unit when the display unit displays the second video in the second display state, and the display The portable terminal device according to any one of claims 1 to 4, wherein the display luminance is not changed by the display unit when the display unit is displayed in the first display state.

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