KR20120032659A - Mobile terminal and method for controlling display thereof - Google Patents

Mobile terminal and method for controlling display thereof Download PDF

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Publication number
KR20120032659A
KR20120032659A KR1020100094108A KR20100094108A KR20120032659A KR 20120032659 A KR20120032659 A KR 20120032659A KR 1020100094108 A KR1020100094108 A KR 1020100094108A KR 20100094108 A KR20100094108 A KR 20100094108A KR 20120032659 A KR20120032659 A KR 20120032659A
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KR
South Korea
Prior art keywords
transparent display
mobile terminal
display
information
transparent
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KR1020100094108A
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Korean (ko)
Inventor
김세호
이연화
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엘지전자 주식회사
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Priority to KR1020100094108A priority Critical patent/KR20120032659A/en
Publication of KR20120032659A publication Critical patent/KR20120032659A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/12—Details of telephonic subscriber devices including a sensor for measuring a physical value, e.g. temperature or motion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M2250/00—Details of telephonic subscriber devices
    • H04M2250/16—Details of telephonic subscriber devices including more than one display unit

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Engineering & Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Telephone Function (AREA)

Abstract

PURPOSE: A portable terminal and display control method thereof are provided to promote security of a transparent display unit by sensing a location of a first transparent display unit and a second transparent display unit. CONSTITUTION: A second transparent display unit is combined with a first transparent display unit in order to open the second transparent display unit in a folding type. A sensing unit(140) senses a relative location between the first transparent display unit and the second transparent display unit. A control unit(180) controls the transparency of the first transparent display unit or the second transparent display unit by considering of the relative location.

Description

MOBILE TERMINAL AND METHOD FOR CONTROLLING DISPLAY THEREOF}

The present invention relates to a mobile terminal and a display control method thereof.

The transparent display is implemented by stacking transparent electrodes, transparent semiconductors, and transparent insulators on transparent glass or transparent plastic. The light emitting surface includes an organic light emitting diode (OLED), a light emitting diode (LED), a liquid crystal display (LCD), or the like.

Recently, as such a transparent display technology has emerged, a movement for applying a transparent display to a mobile terminal has been actively promoted. To this end, there is a need to improve the hardware and / or software of the mobile terminal.

SUMMARY OF THE INVENTION An object of the present invention is to provide a mobile terminal capable of improving security by using a transparent display and improving user visibility.

Another object of the present invention is to provide a display control method of a mobile terminal which can improve security according to the use of a transparent display and improve user visibility.

The present invention is not limited to the above-mentioned problems, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, a mobile terminal may include a first transparent display, a second transparent display, a sensing unit, and a controller.

The sound harvesting second transparent display may be fastened to open and close the folding method with the first transparent display.

The sensing unit may detect a relative position of the first transparent display and the second transparent display.

The controller may adjust the transparency of at least one of the first transparent display and the second transparent display in consideration of the relative positions of the first transparent display and the second transparent display.

Specific details of other embodiments are included in the detailed description and the drawings.

According to the mobile terminal and the display control method according to an embodiment of the present invention, since the transparency is controlled according to the relative position of the transparent display, it is possible to increase the security according to the use of the transparent display.

In addition, when using a mobile terminal having a transparent display, it is possible to improve the visibility by minimizing the influence of the external environment.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.
2 to 4 are views showing in detail the appearance of a mobile terminal for implementing the embodiments of the present invention.
5 illustrates an example in which a mobile terminal according to one embodiment of the present invention displays information through a dual transparent display.
6 illustrates another example in which a mobile terminal according to one embodiment of the present invention displays information through a dual transparent display.
7 is a flowchart illustrating a display control method of a mobile terminal according to an embodiment of the present invention.
8 (a) to 8 (b) illustrate an example of adjusting the transparency of the transparent display according to the relative positions of the first body and the second body.
9 (a) to 9 (c) illustrate examples of adjusting transparency of at least one display surface in a dual transparent display.
FIG. 10 illustrates an example of adjusting transparency of a dual transparent display using an illuminance sensor in a mobile terminal according to another embodiment of the present invention.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and those skilled in the art to which the present invention pertains. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims.

The mobile terminal described herein may include a mobile phone, a smart phone, a laptop computer, a digital broadcasting terminal, a personal digital assistant (PDA), a portable multimedia player (PMP), a navigation device, and the like.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a mobile terminal according to an embodiment of the present invention.

The mobile terminal 100 includes a wireless communication unit 110, an A / V input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory 160, and an interface. The unit 170, the controller 180, and the power supply unit 190 may be included. The components shown in Fig. 1 are not essential, and a mobile terminal having more or fewer components may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules that enable wireless communication between the mobile terminal 100 and the wireless communication system or between the mobile terminal 100 and a network in which the mobile terminal 100 is located. For example, the wireless communication unit 110 may include a broadcast receiving module 111, a mobile communication module 112, a wireless Internet module 113, a short range communication module 114, and a location information module 115 .

The broadcast receiving module 111 receives a broadcast signal and / or broadcast related information from an external broadcast management server through a broadcast channel.

The broadcast channel may include a satellite channel and a terrestrial channel. The broadcast management server may mean a server that generates and transmits a broadcast signal and / or broadcast related information or a server that receives a previously generated broadcast signal and / or broadcast related information and transmits the same to a terminal. The broadcast signal may include not only a TV broadcast signal, a radio broadcast signal, and a data broadcast signal, but also a broadcast signal having a data broadcast signal combined with a TV broadcast signal or a radio broadcast signal.

The broadcast related information may mean information related to a broadcast channel, a broadcast program, or a broadcast service provider. The broadcast related information may also be provided through a mobile communication network. In this case, it may be received by the mobile communication module 112.

The broadcast related information may exist in various forms. For example, it may exist in the form of Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or Electronic Service Guide (ESG) of Digital Video BroadcastHandheld (DVBH).

The broadcast receiving module 111 receives broadcast signals using various broadcasting systems. In particular, the broadcast receiving module 111 may be a digital multimedia broadcasting broadcasting (DMBT), a digital multimedia broadcasting satellite (DMBS), a media forward link only (MediaFLO), a digital video broadcasting ), And ISDBT (Integrated Services Digital Broadcast Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems that provide broadcast signals as well as the digital broadcasting system described above.

The broadcast signal and / or broadcast related information received through the broadcast receiving module 111 may be stored in the memory 160.

The mobile communication module 112 transmits and receives a wireless signal with at least one of a base station, an external terminal, and a server on a mobile communication network. The wireless signal may include various types of data according to transmission and reception of a voice call signal, a video call call signal, or a text / multimedia message.

The wireless Internet module 113 refers to a module for wireless Internet access, and the wireless Internet module 113 can be embedded in the mobile terminal 100 or externally. WLAN (WiFi), Wibro (Wireless broadband), Wimax (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) and the like can be used as wireless Internet technologies.

The short range communication module 114 refers to a module for short range communication. As a short range communication technology, Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, and the like may be used.

The location information module 115 is a module for confirming or obtaining the location of the mobile terminal. A representative example of the location information module is a GPS (Global Position System) module. According to the current technology, the GPS module 115 calculates information on a distance (distance) from three or more satellites to one point (entity), information on the time when the distance information is measured, , Three-dimensional position information according to latitude, longitude, and altitude of one point (individual) in one hour can be calculated. Furthermore, a method of calculating position and time information using three satellites and correcting the error of the calculated position and time information using another satellite is also used. The GPS module 115 may continuously calculate the current position in real time and use the same to calculate speed information.

Referring to FIG. 1, the A / V input unit 120 is for inputting an audio signal or a video signal, and may include a camera 121 and a microphone 122. The camera 121 processes image frames such as still images or moving images obtained by the image sensor in the video call mode or the photographing mode. The processed image frame can be displayed on the display module 151. [

The image frame processed by the camera 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. The camera 121 may be equipped with two or more cameras according to the configuration of the terminal.

The microphone 122 receives an external sound signal by a microphone in a call mode, a recording mode, a voice recognition mode, etc., and processes the external sound signal into electrical voice data. The processed voice data can be converted into a form that can be transmitted to the mobile communication base station through the mobile communication module 112 when the voice data is in the call mode, and output. The microphone 122 may implement various noise removing algorithms for removing noise generated in the process of receiving an external sound signal.

The user input unit 130 generates input data for the user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static pressure / capacitance), a jog wheel, a jog switch, and the like.

The sensing unit 140 detects a current state of the mobile terminal 100 such as an open / closed state of the mobile terminal 100, a location of the mobile terminal 100, presence or absence of a user contact, orientation of the mobile terminal, acceleration / deceleration of the mobile terminal, and the like. To generate a sensing signal for controlling the operation of the mobile terminal 100. For example, when the mobile terminal 100 is in the form of a slide phone, it may sense whether the slide phone is opened or closed. In addition, it may be responsible for sensing functions related to whether the power supply unit 190 is supplied with power, whether the interface unit 170 is coupled to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor.

The output unit 150 is for generating output related to visual, auditory or tactile sense and includes a display module 151, an acoustic output module 152, an alarm unit 153, and a haptic module 154 .

The display module 151 displays information processed by the mobile terminal 100. For example, when the mobile terminal 100 is in a call mode, the mobile terminal 100 displays a user interface (UI) or a graphic user interface (GUI) related to the call. When the mobile terminal 100 is in a video call mode or a photographing mode, the mobile terminal 100 displays photographed and / or received images, a UI, and a GUI.

The display module 151 is a liquid crystal display, a thin film transistor liquid crystal display, an organic light emitting diode, a flexible display, or a 3D display. It may include at least one.

Some of these displays can be configured to be transparent or light transmissive so that they can be seen from the outside. This may be referred to as a transparent display. A representative example of the transparent display is a transparent LCD. The rear structure of the display module 151 may also be of a light transmission type. With this structure, the user can see the object located behind the terminal body through the area occupied by the display module 151 of the terminal body.

There may be two or more display modules 151 according to the implementation form of the mobile terminal 100. For example, in the mobile terminal 100, a plurality of display modules may be spaced apart or integrally arranged on one surface, and may be disposed on different surfaces, respectively.

In a case where the display module 151 and the sensor for sensing the touch operation (hereinafter, referred to as 'touch sensor') have a mutual layer structure (hereinafter referred to as 'touch screen' It can also be used as an input device. The touch sensor may have, for example, a form of a touch film, a touch sheet, a touch pad, or the like.

The touch sensor may be configured to convert a change in pressure applied to a specific portion of the display module 151 or capacitance generated at a specific portion of the display module 151 into an electrical input signal. The touch sensor may be configured to detect not only the position and area of the touch but also the pressure at the touch.

If there is a touch input to the touch sensor, the corresponding signal (s) is sent to the touch controller. The touch controller processes the signal (s) and then transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display module 151 is touched or the like.

Referring to FIG. 1, a proximity sensor may be disposed in an inner region of the mobile terminal or in the vicinity of the touch screen, which is enclosed by the touch screen. The proximity sensor refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or a nearby object without mechanical contact using the force of an electromagnetic field or infrared rays. The proximity sensor has a longer life span than the contact sensor and its utilization is also high.

Examples of the proximity sensor include a transmission type photoelectric sensor, a direct reflection type photoelectric sensor, a mirror reflection type photoelectric sensor, a high frequency oscillation type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an infrared proximity sensor.

When the touch screen is capacitive, the touch screen is configured to detect the proximity of the pointer by the change of the electric field according to the proximity of the pointer. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of allowing the pointer to be recognized without being in contact with the touch screen so that the pointer is located on the touch screen is referred to as a "proximity touch", and the touch The act of actually touching the pointer on the screen is called "contact touch." The position where the proximity touch is performed by the pointer on the touch screen refers to a position where the pointer is perpendicular to the touch screen when the pointer is in proximity proximity.

The proximity sensor detects a proximity touch and a proximity touch pattern (e.g., a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, a proximity touch movement state, and the like). Information corresponding to the sensed proximity touch operation and proximity touch pattern may be output on the touch screen.

The sound output module 152 may output audio data received from the wireless communication unit 110 or stored in the memory 160 in a call signal reception, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, and the like. The sound output module 152 outputs an acoustic signal related to a function (e.g., a call signal reception sound, a message reception sound, etc.) performed in the mobile terminal 100. The sound output module 152 may include a receiver, a speaker, a buzzer, and the like.

The alarm unit 153 outputs a signal for notifying occurrence of an event of the mobile terminal 100. Examples of events occurring in the mobile terminal include call signal reception, message reception, key signal input, and touch input. The alarm unit 153 may output a signal for notifying occurrence of an event in a form other than a video signal or an audio signal, for example, vibration. The video signal or audio signal may also be output through the display module 151 or the audio output module 152.

The haptic module 154 generates various tactile effects that the user can feel. Vibration is a representative example of the haptic effect generated by the haptic module 154. The intensity and pattern of vibration generated by the haptic module 154 can be controlled. For example, different vibrations may be synthesized and output or may be sequentially output.

In addition to the vibration, the haptic module 154 may be used for the effects of stimulation by the arrangement of pins vertically moving with respect to the contact skin surface, the effect of the injection force of the air through the injection or inlet or the stimulation through the suction force, and the stimulation that rubs the skin surface. Various tactile effects may be generated, such as effects by stimulation through contact of electrodes, effects by stimulation using electrostatic force, and effects of reproducing a sense of warmth and heat using an endothermic or heat generating element.

The haptic module 154 may not only deliver the haptic effect through direct contact, but also implement the haptic effect through the muscle sense of the user's finger or arm. Two or more haptic modules 154 may be provided according to a configuration aspect of the mobile terminal 100.

The memory 160 may store a program for the operation of the controller 180 and may temporarily store input / output data (for example, a phone book, a message, a still image, a video, etc.). The memory 160 may store data relating to various patterns of vibration and sound output when a touch input on the touch screen is performed.

The memory 160 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), a RAM At least one of a random access memory (RAM), a static random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read- Type storage medium. The mobile terminal 100 may operate in connection with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path with all external devices connected to the mobile terminal 100. The interface unit 170 receives data from an external device or receives power from the external device to transfer the data to each component in the mobile terminal 100 or to transmit data in the mobile terminal 100 to an external device. For example, a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device having an identification module, an audio I / O port, A video input / output (I / O) port, an earphone port, and the like may be included in the interface unit 170.

The identification module is a chip that stores various types of information for authenticating the use authority of the mobile terminal 100, and includes a user identification module (UIM), a subscriber identify module (SIM), and a universal user authentication module. (Universal Subscriber Identity Module, USIM) and the like. Devices with identification modules (hereinafter referred to as "identification devices") can be manufactured in a smart card format. Accordingly, the identification device can be connected to the terminal 100 through the port.

The interface unit may be a passage through which power from the cradle is supplied to the mobile terminal 100 when the mobile terminal 100 is connected to an external cradle, or various command signals input from the cradle by a user may be moved. It may be a passage that is delivered to the terminal. Various command signals or power input from the cradle may be operated as signals for recognizing that the mobile terminal is correctly mounted on the cradle.

The control unit 180 typically controls the overall operation of the mobile terminal. For example, perform related control and processing for voice calls, data communications, video calls, and the like. The controller 180 may include a multimedia module 181 for playing multimedia. The multimedia module 181 may be implemented in the controller 180 or may be implemented separately from the controller 180.

The controller 180 may perform a pattern recognition process for recognizing a writing input or a drawing input performed on the touch screen as text and an image, respectively.

The power supply unit 190 receives an external power source and an internal power source under the control of the controller 180 to supply power for operation of each component.

Various embodiments described herein may be implemented in a recording medium readable by a computer or similar device using, for example, software, hardware or a combination thereof.

According to a hardware implementation, the embodiments described herein may be implemented as application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays May be implemented using at least one of processors, controllers, microcontrollers, microprocessors, and electrical units for performing functions. In some cases such embodiments may be implemented using a controller 180 < / RTI >

In a software implementation, embodiments such as procedures or functions may be implemented with separate software modules that allow at least one function or operation to be performed. The software code may be implemented by a software application written in a suitable programming language. In addition, the software codes may be stored in the memory 160 and executed by the control unit 180. [

2 to 4 are views showing in detail the appearance of a mobile terminal for implementing the embodiments of the present invention.

Embodiments of the present invention described below may be implemented in the mobile terminal 100 including the first body 101 and the second body 102.

The first body 101 and the second body 102 may be fastened in various ways by the fastening unit 195. For example, the fastening unit 195 may fasten the first body 101 and the second body 102 to be mutually foldable, or may be fastened to be slidable to each other. The mobile terminal 100 described with reference to the drawings describes an example in which the first body 101 and the second body 102 are fastened by the folding method, but the present invention is not limited thereto.

2 is a perspective view of a case where the first body 101 and the second body 102 correspond to a closed state, and FIG. 3 is a state in which the first body 101 and the second body 102 are open. FIG. 4 is a perspective view and a side view when the first body 101 and the second body 102 correspond to a fully open state. The user may open and close the first body 101 and the second body 102 as shown in FIGS. 2 to 4.

2 to 4, the first body 101 includes a first display unit 151a and the second body 102 includes a second display unit 151b. As described above, the first display unit 151a and the second display unit 151b may perform both an information input function and an information display function. The information input function may be performed by a touch method. In one embodiment of the present invention, the first display unit 151a and the second display unit 151b are a first transparent display 151a and a second transparent display 151b, respectively.

The first transparent display 151a may be divided into a first transparent display front surface 151a 1 and a first transparent display rear surface 151a 2 , and the second transparent display 151b may be divided into a second transparent display front surface 151b 1. ) And the second transparent display rear surface 151b 2 .

In this document, the first transparent display front surface 151a 1 is defined and described as a surface facing the user when the mobile terminal 100 is in a closed state in a folder manner.

Meanwhile, as illustrated in FIG. 4, when the mobile terminal 100 is in an open state, two surfaces facing the user may be provided. In this case, the first transparent display front surface 151a 1 and the second surface may be two sides. The transparent display front surface 151b 1 may correspond to this. Of course, the surface facing the user as the user's eyes move may be at least one of the first transparent display rear surface 151a 2 and the second transparent display rear surface 151b 2 .

Meanwhile, the mobile terminal 100 according to an embodiment of the present invention closes the state of the mobile terminal 100 when the first transparent display rear surface 151a 2 and the second transparent display rear surface 151b 2 overlap each other. Define by state and explain. However, the present invention is not limited thereto. For example, as shown in FIG. 2, when the first body 101 and the second body 102 are rotatable about a central axis in a range of up to 360 °, the first transparent display front surface 151a 1 and When the second transparent display front surface 151b 2 overlaps each other, the state of the mobile terminal 100 may be defined as a closed state.

Meanwhile, one surface of the first body 101 provided with the first transparent display unit 151a and one surface of the second body 102 provided with the second display 151b may include the first body 101. When the second body 102 corresponds to a closed state, the second bodies 102 may be inscribed with each other. That is, the first transparent display rear surface 151a 2 and the second transparent display rear surface 151b 2 may be inscribed with each other.

2, in a state where the first body 101 and the second body 102 are closed, the first transparent display rear surface 151a 2 and the second transparent display rear surface 151b 2 are inscribed with each other.

In addition, one surface of the first body 101 provided with the first transparent display unit 151a and one surface of the second body 102 provided with the second transparent display unit 151b may include the first body 101. ) And the second body 102 may be included in substantially the same surface when the second body 102 corresponds to a fully open state. Referring to FIG. 4, when the first body 101 and the second body 102 correspond to the fully open state, the first transparent display 151a and the second transparent display 151b may have substantially the same surface A. FIG. -A ').

Meanwhile, in this document, the relative positions of the first body 101 and the second body 102 are used in the same meaning as the relative positions of the first transparent display 151a and the second transparent display 151b.

The folding operation of the first body 101 and the second body 102 is not limited to that shown in FIG. 3. For example, the angle α formed by the first body 101 and the second body 102 may be from 0 ° to 180 °, as shown in FIGS. 2 to 4. Also, for example, the angle α formed by the first body 101 and the second body 102 may be fastened by the fastening unit 195 such that the angle α is 180 ° or more.

The controller 180 may use the sensing unit 140 to determine the relative position of the first body 101 and the second body 102, for example, an angle between the first body 101 and the second body 102. Can be detected.

In addition, the controller 180 may sense a direction that the first transparent display 151a and / or the second transparent display 151b uses by using the sensing unit 140. For example, referring to FIG. 4, the mobile terminal 100 includes first and second transparent displays 151a and 151b in a state where an angle formed by the first body 101 and the second body 102 is 180 °. Can be placed on the desk, facing the ground or vice versa. The controller 180 can detect the posture or direction of the mobile terminal 100 as described above.

The sensing unit 140 may include a hall sensor, a 3-axis or 6-axis motion sensor, and a geomagnetic sensor to detect the posture or directing direction of the mobile terminal 100 described above. And an acceleration sensor.

Meanwhile, the sensing unit 140 of the mobile terminal 100 according to an embodiment of the present invention may further include an illuminance sensor 141. The illuminance sensor 141 is a sensor that detects an amount of light incident on the transparent display 151 and may be implemented to be suitable for detecting the ambient brightness of the mobile terminal 100. The controller 180 of the mobile terminal 100 may decrease the transparency of the transparent display when the peripheral illumination increases using the value sensed by the illumination sensor 141, and increase the transparency of the transparent display when the peripheral illumination decreases. have.

In addition, the mobile terminal 100 may include at least one of the first manipulation unit 131 and the second manipulation unit 132 as illustrated in FIGS. 2 to 4. The first manipulation unit 131 and the second manipulation unit 132 are manipulation units included in the user input unit 130 and may be keypads.

The mobile terminal 100 may receive a command for controlling the operation of the mobile terminal 100 through at least one of the first manipulation unit 131 and the second manipulation unit 132.

Content input by the first manipulation unit 131 and the second manipulation unit 132 may be variously set. For example, the first manipulation unit 131 receives a command such as start, end, and scroll, and the second manipulation unit 132 adjusts the volume of the sound output from the sound output unit 152 or the transparent display 151. Commands such as switching to the touch recognition mode may be input.

Embodiments disclosed in this document may be implemented in the mobile terminal 100 described with reference to FIGS. 1 and 2 to 4, and may be represented by a display module 151, a display unit, or a display of the mobile terminal 100. In the following description, a display is a transparent display. Hereinafter, the transparent display 151, in particular, the dual transparent display 151a and 151b will be described in detail with reference to embodiments of the present invention.

The transparent display 151 is one of display devices that provide transparency such as glass when power is not supplied. The transparent display 151 may be replaced with glass used for windows of buildings and automobile windshields.

The transparent display 151 may be configured as a transparent organic light emitting diode (TOLED), such as a transparent organic light emitting diode (TOLED), and a device having a feature that emits light from both sides when emitting light.

The transparent display 151 may display specific information in both directions through the front and rear surfaces. In addition, both surfaces of the transparent display 151 and the touch pad may have a mutual layer structure, and thus may be implemented as a touch screen capable of touch input to both surfaces of the transparent display 151.

Meanwhile, the transparent display 151 may turn on only the light emitting device corresponding to the position where the information is displayed. Accordingly, the light emitting device corresponding to the remaining pixels except for the pixel on which the information is displayed is in an off state and the corresponding region is in a transparent state.

As illustrated in FIGS. 2 to 4, the inventive concept may be applied to the first transparent display 151a and the second transparent display 151b in which the displays may be physically divided. However, the technical idea of the present invention may be applied to a case in which the two displays that are not physically divided but are logically divided are both transparent displays.

FIG. 5 illustrates an example in which a mobile terminal according to one embodiment of the present invention displays information through first and second transparent displays.

Referring to FIG. 5, (a) shows the first transparent display front surface 151a 1 and the second transparent display front surface 151b 1 , and (b) shows the first transparent display rear surface 151a 2 and the second. The transparent display rear surface 151b 2 is illustrated, and both surfaces of the transparent display 151 are activated. That is, the case where predetermined information is displayed using both surfaces of the transparent display 151 is shown. In this case, the information 3a viewed through the front surface 151a 1 of the first transparent display may also be viewed through the rear surface 151a 2 of the first transparent display. However, from the user's point of view, the information 3a viewed through the rear surface 151a 2 of the first transparent display may be reversed from the left and right sides as seen through the front surface 151a 1 .

Meanwhile, the mobile terminal 100 according to an embodiment of the present invention may control the transparent display 151 so that information is displayed only through one surface of the transparent display 151. For example, the mobile terminal 100 controls the backlight while certain information is displayed through the front of the transparent display 151, or controls the transparency of the transparent display 151 to control the back of the transparent display 151. Through this, information can be controlled to not be visible. That is, by controlling the rear of the transparent display 151 in an opaque state, it is possible to control so that information is visible only on the front of the transparent display 151.

To this end, the mobile terminal 100 according to an embodiment of the present invention may be provided separately on the front and rear of the transparent display 151 (not shown) for controlling the display function. That is, although the control unit 180 of the mobile terminal 100 may control the transparency of the transparent display 180, display control means (not shown) may be provided separately from the control unit 180.

6 illustrates another example in which a mobile terminal according to one embodiment of the present invention displays information through a dual transparent display.

Referring to FIG. 6, while the controller 180 of the mobile terminal 100 displays the specific information 3a through the first transparent display front surface 151a 1 and the second transparent display front surface 151b 1 , the first control unit 180 may display the first information. The information 3a may not be displayed through the transparent display rear surface 151a 2 and the second transparent display rear surface 151b 2 . That is, the rear surfaces 151a 2 and 151b 2 may be controlled in an opaque state by controlling the transparency of the first transparent display 151a and the second transparent display 151b. As described above, the means for controlling the transparency may be at least one of the controller 180 and the display control means (not shown) of the mobile terminal 100.

Hereinafter, a method of controlling a mobile terminal according to the first embodiment of the present invention and an operation of the mobile terminal 100 for implementing the same will be described in detail with reference to the accompanying drawings.

7 is a flowchart illustrating a control method of a mobile terminal according to an embodiment of the present invention. 8 (a) to 9 (c) are diagrams for describing a control method of the mobile terminal 100 according to an embodiment of the present invention, and FIGS. 8 (a) to 8 (b) are the first. An example of adjusting the transparency of the transparent display according to the relative positions of the transparent display 151a and the second transparent display 151b is illustrated, and FIGS. 9 (a) to 9 (c) illustrate dual transparent displays. Shows an example of adjusting the transparency of at least one display surface.

Referring to FIG. 7, the controller 180 may display predetermined information on the first transparent display 151a and the second transparent display 151b (S100). For example, referring to FIG. 8 (a), when the first body 101 and the second body 102 form 180 ° with each other, the controller 180 may display a part of predetermined image information in a first transparent manner. The display unit 151a 1 may be displayed on the front surface of the second transparent display 151b 1 , and the remaining portion may be displayed on the second transparent display. In the image information displayed on the first transparent display front surface 151a 1 and the second transparent display front surface 151b 1 , one image information may be sequentially displayed, but different image information may be displayed on each transparent display. It may be.

Meanwhile, unlike FIG. 8A, the first information displayed on the first transparent display front surface 151a 1 and the second information displayed on the second transparent display front surface 151a 2 may be different from each other. In this case, the information displayed on each transparent display may be one piece of completed information.

Information displayed on the transparent display 151 may include text, a photo, an image, a video, an icon, a graphic object, and the like. In particular, when the information displayed on the transparent display 151 is extremely personal information that requires security, the information on the third party existing on the opposite side of the transparent display facing the user of the mobile terminal 100 due to the above-described characteristics of the transparent display The same personal information may be exposed.

The present invention provides a mobile terminal 100 that can improve the security by adjusting the transparency of the remaining transparent display surfaces other than the front of the transparent display to the user as a way to solve such a risk.

To this end, the mobile terminal 100 includes a first transparent display (151a 1) and a second transparent display according to the relative position of the (151b 1), the first transparent display (151a 1) and a second transparent display (151b 1) At least one of the transparency can be adjusted. That is, the controller 180 detects a relative position of the first transparent display 151a and the second transparent display 151b detected by the sensing unit 140 (S110).

Here, the relative positions of the first transparent display 151a and the second transparent display 151b are the same as the relative positions of the second body 102 fastened to be opened and closed with the first body 101 by folding. An angle formed by the first body 101 and the second body 102 may be referred to. That is, when the angle is 180 degrees, the first body 101 and the second body 102 exist in a straight line. When the angle is 0 degrees, the first body 101 and the second body are present. This is the case where 102 is superimposed. The angle formed by the first body 101 and the second body 102 is not limited to the above-described example, and may mean all angles that the first body 101 and the second body 102 can achieve. .

As a result of sensing by the sensing unit 140, when the first body 101 and the second body 102 are overlapped with each other (S120: yes, the angle is 0 °), the controller 180 may use the first transparent display 151a. And information displayed on at least one of the second transparent display 151b may be displayed on one display, that is, the first transparent display 151a (S130).

For example, referring to FIGS. 8A and 8B, a portion of predetermined image information is displayed on the front surface 151a 1 of the first transparent display, and the remaining portion having continuity with the image information is stored. 2 is displayed on the front surface 151b 1 of the transparent display. As a result of sensing by the sensing unit 140, when it is determined that the first body 101 and the second body 102 are stacked, the controller 180 displays all of the image information on the front surface 151a 1 of the first transparent display. 8 (b) of FIG. 8, the transparency of the remaining transparent display surfaces may be controlled to be in an opaque state (FIG. 8 (b) of (b)).

Meanwhile, as described above, when the information displayed on the two transparent displays is different from each other as the first information and the second information, the controller 180 according to the sensing result of the sensing unit 140, the first information and the second information. Information may be displayed together on the front surface 151a 1 of the first transparent display. That is, the first information and the second information may be displayed by dividing the screen displayed on the front surface 151a 1 of the first transparent display, or the second information may be displayed to overlap the first information. As described above, the remaining transparent display surfaces may be controlled to be in an opaque state by adjusting transparency.

That is, the controller 180 may include the first transparent display rear surface 151a 2 , the second transparent display front surface 151b 1 , and the first transparent display rear surface 151b 2 except for the first transparent display front surface 151a 1 facing the user. At least one of the transparency can be controlled (S140).

For example, if the transparency of the rear surface 151a 2 of the first transparent display 151a 2 is controlled to be in an opaque state as shown in FIG. 9A, the personal information shown on the front surface 151a 1 of the first transparent display is controlled by the mobile terminal. Only users of 100 can see it. In addition, as shown in FIG. 9 (b), the second transparent display front surface 151a 1 is controlled to be in an opaque state, or as shown in FIG. 9 (c), the second transparent display rear surface 151b 2 is opaque. Even in the case of controlling to be in a state, as shown in FIG. 9A, the personal information shown on the front surface 151a 1 of the first transparent display is visible only to the user of the mobile terminal 100.

9 (a) to 9 (c), the first body 101 and the second body 102 are separately displayed for convenience of description through the drawings, but the first body 101 is shown. And the second body 102 is of course coupled through the fastening portion 195.

Meanwhile, in the mobile terminal 100 according to an embodiment of the present invention, the controller 180 may automatically adjust the transparency of the transparent display according to the relative position of the first body 101 and the second body 102. The present invention is not limited to this. For example, transparency may be adjusted by a user of the mobile terminal 100.

That is, when a predetermined hardware key or software key is input in adjusting the transparency, the controller 180 may adjust the transparency according to the type of the input key. In this case, the user may change the transparency according to the type of the input key or the number of times of input of the key, and the transparency may be sequentially changed by a predetermined unit every time the key is input.

In the above, only the case where the relative positions of the first body 101 and the second body 102 are overlapped with each other is described, but the present invention is not limited thereto. For example, when the first body 101 and the second body 102 are located in a straight line, as shown in FIG. 6B according to the operation of the predefined mobile terminal 100, The transparency of the first transparent display rear surface 151a 2 and the second transparent display rear surface 151b 2 may be controlled to be in an opaque state. In this case, the personal information displayed on at least one of the first transparent display front surface 151a 1 and the second transparent display front surface 151b 1 may be displayed only to the user of the mobile terminal 100.

Herein, the operation of the predefined mobile terminal 100 may include pressing a soft key provided on the user manipulation units 131 and 132, touching a surface of the transparent display 151, and defining a predefined mobile terminal 100. When the specific movement operation of the mobile terminal 100 is provided with voice command recognition, it may include a voice input (eg, transparent, clear, etc.) input by the user.

Meanwhile, methods for preventing specific information disclosed in the transparent display from being viewed by a third party opposite to the user of the mobile terminal 100 are not limited to the above-described example and may be variously modified.

For example, the transparency of some pixels may be adjusted, not the transparency of the entire transparent display. Although the transparency of the entire transparent display is adjusted using the controller 180 or the display control means (not shown), only the transparency of the pixels corresponding to the information displayed on the transparent display is adjusted and the transparency of the remaining pixels is maintained. Can be. That is, when the first body 101 and the second body 102 overlap each other while the specific information is displayed on the first area of the first transparent display front surface 151a 1 , the first transparent display rear surface 151a 1 ), Individual pixels included in regions corresponding to the first region of the first transparent display 151a 1 , among at least one display among the second transparent display front surface 151b 1 and the second transparent display rear surface 151b 1 . Transparency can be adjusted for these fields.

Also, for example, transparency may be adjusted by adjusting power supplied to the transparent display. The controller 180 detects a relative position of the first body 101 and the second body 102, and when the first body 101 and the second body 102 are in a superimposed position with each other, the power supply unit ( The function of the controller 190 may be controlled to automatically cut off the power supplied to the second transparent display 151b. The controller 180 may cut off power supplied to at least one of the rear surface 151a 2 of the first transparent display, the front surface 151b 1 of the second transparent display, and the rear surface 151b 2 of the second transparent display. have.

Also, for example, transparency may be controlled by adjusting colors around the transparent display. The controller 180 may control the opaque state by changing colors of the remaining surfaces except for the front surface 151a 1 of the first transparent display. To this end, the sensing unit 140 of the mobile terminal 100 may further include a color sensor (not shown). The color sensor may detect color information such as color and brightness saturation around the transparent display.

Meanwhile, the transparency controlled by the controller 180 may be temporarily maintained or continuously maintained according to a setting, and the controller 180 controls the transparency to an opaque or semi-transparent state, thereby directing the user to the first. It is possible to control such that no information is displayed through other surfaces except the transparent display 151a 1 .

As described above, in the mobile terminal 100 according to the first embodiment of the present invention, when the information disclosed on the transparent display is information that requires security, the mobile terminal 100 may be related to the relative relationship between the first body 101 and the second body 102. By adjusting the transparency of at least one of the first transparent display 151a and the second transparent display 151b according to the position, there is an effect of solving the vulnerability of security due to the use of the dual transparent display.

Hereinafter, a method of controlling a mobile terminal according to a second embodiment of the present invention and operations of the mobile terminal 100 for implementing the same will be described in detail with reference to the accompanying drawings.

10 is a view for explaining a control method of a mobile terminal according to an embodiment of the present invention.

Referring to FIG. 10, the controller 180 displays predetermined information on a transparent display and checks an illuminance value detected by the illuminance sensor 141. As a result of comparing the sensed illuminance value with a preset threshold value, when the sensed illuminance value exceeds the threshold value, the controller 180 adjusts the illuminance of the transparent display.

For example, (a) of FIG. 10 illustrates a case in which the amount of light incident on the transparent display exceeds a predetermined threshold and there is a problem in securing a view of the user of the mobile terminal 100. In this case, the controller 180 may automatically adjust the screen brightness of the transparent display by recognizing the sensing value of the illumination sensor 141. Alternatively, when there is an input of an illumination control signal, the controller 180 may adjust screen brightness of the transparent display.

Here, the brightness detected by the illumination sensor 141 is the brightness around the transparent display 151. The controller 180 may control the illumination sensor 141 to periodically sense the illumination around the transparent display 151.

In addition, the preset threshold may be an illuminance value at the moment when the user of the mobile terminal 100 lowers the illuminance of the transparent display at a specific illuminance, and such an illuminance value may be stored in the memory 160.

Meanwhile, when an application capable of adjusting the illuminance of the transparent display is installed in the mobile terminal 100 according to the result value of the illuminance sensor 141, the screen brightness of the transparent display is controlled by driving the application having the illuminance adjusting function. You may.

In addition, when the display 151 of the mobile terminal 100 is a dual transparent display, the controller 180 may adjust the illuminance of the transparent displays in which the sensing value of the illuminance sensor 141 exceeds a predefined threshold. have. That is, when the first body 101 and the second body 102 are 180 degrees, and the illuminance values of the first transparent display front surface 151a 1 and the second transparent display front surface 151b 1 both exceed the threshold. The illuminance may be adjusted for both the first transparent display and the second transparent display.

As described above, the mobile terminal 100 according to an embodiment of the present invention senses the illuminance of the display directed toward the user through the illuminance sensor 141, and the sensed illuminance value exceeds a predefined threshold value. In this case, it is possible to automatically adjust the illuminance of the transparent display. Accordingly, in using the mobile terminal 100 including the first transparent display 151a and the second transparent display 151b, there is an effect of minimizing the influence of the external environment.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. For example, the control method of the mobile terminal of the present invention can be executed through software. When implemented in software, the constituent means of the present invention are code segments that perform the necessary work. The program or code segments may be stored on a processor readable medium or transmitted by a computer data signal coupled with a carrier on a transmission medium or network.

Computer-readable recording media include all kinds of recording devices that store data that can be read by a computer system. Examples of the computer-readable recording device include ROM, RAM, CD-ROM, DVD-ROM, DVD-RAM, magnetic tape, floppy disk, hard disk, optical data storage device, and the like. The computer-readable recording medium may also be distributed to networked computer devices so that computer readable code can be stored and executed in a distributed manner.

Therefore, it is to be understood that the embodiments described above are all illustrative of the specification and not limiting. The scope of the invention is indicated by the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents are included in the scope of the invention. Should be.

100: mobile terminal 151: transparent display unit
151a: first transparent display 151b: second transparent display
151a 1 : First transparent display front 151a 2 : First transparent display rear
151b 1 : Front of the second transparent display 151b 2 : Rear of the second transparent display
140: sensing unit 141: illuminance sensor

Claims (5)

A first transparent display;
A second transparent display fastened to be opened and closed with the first transparent display in a folding manner;
A sensing unit configured to detect a relative position of the first transparent display and the second transparent display; And
Control unit for adjusting the transparency of at least one of the first transparent display and the second transparent display in consideration of the relative position
Mobile terminal comprising a. The method of claim 1, wherein the control unit,
When the first transparent display and the second transparent display are overlapped with each other,
And controlling transparency of at least one of a rear surface of the first transparent display, a front surface of the second transparent display, and a rear surface of the second transparent display to be in an opaque state. The method of claim 2,
Further comprising a power supply,
The control unit controls the transparency by cutting off power supplied to at least one of the rear surface of the first transparent display, the front surface of the second transparent display, and the rear surface of the second transparent display through the power supply unit. Mobile terminal characterized in that. The method of claim 1,
An illuminance sensor sensing an amount of light incident on at least one of the first transparent display and the second transparent display
Further comprising, the control unit,
And adjusting the illuminance of the transparent display whose sensing value sensed by the illuminance sensor exceeds a predefined threshold. The method of claim 4, wherein
The sensing unit detects a transparent display directed to a user,
The control unit, the mobile terminal, characterized in that for adjusting the illuminance of the transparent display to the user of the transparent display that exceeds the threshold value.
KR1020100094108A 2010-09-29 2010-09-29 Mobile terminal and method for controlling display thereof KR20120032659A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014035177A1 (en) * 2012-08-30 2014-03-06 Samsung Electronics Co., Ltd. Device and method for adjusting transparency of a display used for packaging a product
KR20140115043A (en) * 2013-03-20 2014-09-30 엘지전자 주식회사 Mobile terminal and method for controlling of the same
US9250657B2 (en) 2014-05-19 2016-02-02 Samsung Display Co., Ltd. Foldable display
TWI548079B (en) * 2013-04-16 2016-09-01 友達光電股份有限公司 Transparent display and transparent display panel
WO2016153467A1 (en) * 2015-03-20 2016-09-29 Hewlett-Packard Development Company, L.P. Display with adjustable transparency
US9804635B2 (en) 2014-02-06 2017-10-31 Samsung Electronics Co., Ltd. Electronic device and method for controlling displays
US9959030B2 (en) 2015-03-05 2018-05-01 Samsung Display Co., Ltd. Display apparatus
US11263996B2 (en) 2019-04-04 2022-03-01 Samsung Display Co., Ltd. Display device

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014035177A1 (en) * 2012-08-30 2014-03-06 Samsung Electronics Co., Ltd. Device and method for adjusting transparency of a display used for packaging a product
US9984659B2 (en) 2012-08-30 2018-05-29 Samsung Electronics Co., Ltd. Device and method for adjusting transparency of display used for packaging a product
KR20140115043A (en) * 2013-03-20 2014-09-30 엘지전자 주식회사 Mobile terminal and method for controlling of the same
TWI548079B (en) * 2013-04-16 2016-09-01 友達光電股份有限公司 Transparent display and transparent display panel
US9804635B2 (en) 2014-02-06 2017-10-31 Samsung Electronics Co., Ltd. Electronic device and method for controlling displays
US10423193B2 (en) 2014-02-06 2019-09-24 Samsung Electronics Co., Ltd. Electronic device and method for controlling displays
US9395842B2 (en) 2014-05-19 2016-07-19 Samsung Display Co., Ltd. Foldable display
US9250657B2 (en) 2014-05-19 2016-02-02 Samsung Display Co., Ltd. Foldable display
US9959030B2 (en) 2015-03-05 2018-05-01 Samsung Display Co., Ltd. Display apparatus
US10209878B2 (en) 2015-03-05 2019-02-19 Samsung Display Co., Ltd. Display apparatus
US10705716B2 (en) 2015-03-05 2020-07-07 Samsung Display Co., Ltd. Display apparatus
WO2016153467A1 (en) * 2015-03-20 2016-09-29 Hewlett-Packard Development Company, L.P. Display with adjustable transparency
US10416520B2 (en) 2015-03-20 2019-09-17 Hewlett-Packard Development Company, L.P. Display with adjustable transparency
US10712629B2 (en) 2015-03-20 2020-07-14 Hewlett-Packard Development Company, L.P. Display with adjustable transparency
US11263996B2 (en) 2019-04-04 2022-03-01 Samsung Display Co., Ltd. Display device

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