KR101092466B1 - Mobile Terminal And Method Of Controlling The Same - Google Patents

Abstract

The present invention provides a mobile terminal and a control method of the mobile terminal. The present invention provides a mobile terminal and a method of controlling the mobile terminal for controlling the shadow of the object and / or the object displayed on the display unit based on the property of the light source received from the outside.

Color properties, contrast, shading

Description

Mobile terminal and method of controlling the mobile terminal {Mobile Terminal And Method Of Controlling The Same}

The present invention relates to displaying an object and a shadow of the object on a mobile terminal, and more particularly, to controlling a color property and / or a shadow property of an object according to a property of a light source.

As the spread of mobile terminals providing a function of playing multimedia contents increases rapidly, there is a need to provide various user interfaces that can efficiently control playback and output of multimedia contents.

An object of the present invention is to provide a mobile terminal capable of controlling the color property of an object displayed on the mobile terminal according to the property of the light source.

In addition, an object of the present invention is to provide a mobile terminal capable of controlling the property of the shadow of the object displayed on the mobile terminal according to the property of the light source.

A mobile terminal according to an aspect of the present invention, the display unit for displaying the object and the shadow of the object; At least one acquisition unit for obtaining an intensity of a light source received from an external light source; And a controller configured to acquire direction information of the light source with respect to the object and control at least one of a color property of the object and a property of shade of the object according to at least one of the intensity of the light source and the direction of the light source. It is done by

A control method of a mobile terminal displaying an object on a display unit according to an aspect of the present invention, the method comprising: obtaining the intensity of a light source received from the outside; Acquiring direction information of the light source for the object by performing at least one of a first operation of comparing the intensity of the obtained light source and a second operation of calculating a direction of natural light based on a current date and time; Generating a control signal for controlling at least one of a color property of the object and a property of shade of the object according to at least one of the obtained intensity of the light source and the direction of the light source; And displaying the object on the display unit based on the generated control signal.

According to the mobile terminal and the method for controlling the mobile terminal according to the present invention, since the color property of the object displayed on the mobile terminal and / or the property of the shadow of the object can be controlled in various ways according to the property of the light source received from the outside. In this regard, the identification power and the realism of the object and / or the shadow provided to the user may be increased.

The above objects, features and advantages of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings. It is to be understood, however, that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and similarities. Like reference numerals designate like elements throughout the specification. In addition, when it is determined that the detailed description of the known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted. In addition, the numbers (eg, first, second, etc.) used in the description process of the present specification are merely identification symbols for distinguishing one component from another component.

Hereinafter, a mobile terminal according to the present invention will be described in more detail with reference to the accompanying drawings. The suffixes "module" and "unit" for components used in the following description are given or mixed in consideration of ease of specification, and do not have distinct meanings or roles by themselves.

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), navigation, and the like. However, it will be readily apparent to those skilled in the art that the configuration according to the embodiments described herein may also be applied to fixed terminals such as digital TVs, desktop computers, etc., except when applicable only to mobile terminals.

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 audio / video input unit 120, a user input unit 130, a sensing unit 140, an output unit 150, a memory unit 160, An interface unit 170, a control unit 180, a power supply unit 190, and the like. 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, a location information module 115, and the like. have.

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 a broadcast signal using various broadcasting systems, in particular, Digital Multimedia Broadcasting Terrestrial (DMBT), Digital Multimedia Broadcasting Satellite (DMBS), Media Forward Link Only (MediaFLO), and Digital Video BroadcastHandheld (DVBH). ), A digital broadcast signal can be received using a digital broadcast system such as Integrated Services Digital Broadcast Terrestrial (ISDBT). 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 unit 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 may be displayed on the display unit 151.

The image frame processed by the camera 121 may be stored in the memory unit 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.

The output unit 150 is used to generate an output related to sight, hearing, or tactile sense, and includes a display unit 151, an audio output module 152, an alarm unit 153, and a haptic module 154. Can be.

The display unit 151 displays and outputs information processed by the mobile terminal 100. For example, when the mobile terminal is in a call mode, the mobile terminal 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 a photographed and / or received image, a UI, and a GUI.

The display unit 151 may be a liquid crystal display, a thin film transistor liquid crystal display, an organic light emitting diode, a flexible display, a 3D display And 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 unit 151 may also be configured as a light transmissive structure. With this structure, the user can see the object located behind the terminal body through the area occupied by the display unit 151 of the terminal body.

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

When the display unit 151 and a sensor for detecting a touch operation (hereinafter, referred to as a touch sensor) form a mutual layer structure (hereinafter, abbreviated as “touch screen”), the display unit 151 is an output device. 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 unit 151 or capacitance generated in a specific portion of the display unit 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. As a result, the controller 180 can know which area of the display unit 151 is touched.

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 unit 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 the audio signal can also be output through the display unit 151 or the audio output module 152.

The haptic module 154 generates various tactile effects that a 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 unit 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 unit 160 may store data regarding vibration and sound of various patterns output when a touch input on the touch screen is performed.

The memory unit 160 may include a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD memory), At least one of Random Access Memory (RAM), Static Random Access Memory (SRAM), ReadOnly Memory (ROM), Electrically Erasable Programmable ReadOnly Memory (EEPROM), Programmable ReadOnly Memory (PROM) magnetic memory, magnetic disk, optical disk It may include a storage medium of the type. The mobile terminal 100 may operate in association with a web storage that performs a storage function of the memory unit 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 usage rights 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 include application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), and the like. It may be implemented using at least one of processors, controllers, microcontrollers, microprocessors, and electrical units for performing the functions. 180).

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. Also, the software codes may be stored in the memory unit 160 and executed by the control unit 180. [

2A is a front perspective view of an example of a mobile terminal or a portable terminal according to the present invention.

The disclosed portable terminal 100 has a terminal body in the form of a bar. However, the present invention is not limited thereto and may be applied to various structures such as a slide type, a folder type, a swing type, a swivel type, and two or more bodies are coupled to be relatively movable.

The body includes a casing (casing, housing, cover, etc.) that forms an exterior. In this embodiment, the case may be divided into a front case 101 and a rear case 102. Various electronic components are embedded in the space formed between the front case 101 and the rear case 102. At least one intermediate case may be additionally disposed between the front case 101 and the rear case 102. [

The cases may be formed by injecting synthetic resin or may be formed of a metal material, for example, a metal material such as stainless steel (STS) or titanium (Ti).

The terminal body, mainly the front case 101, has a display unit 151, an audio output unit 152, a camera 121, a user input unit 130/131, 132, a microphone 122, an interface 170, a light detecting sensor ( 141) may be arranged.

The display unit 151 occupies most of the main surface of the front case 101. The sound output unit 152 and the camera 121 are disposed in regions adjacent to one end of both ends of the display unit 151, and the user input unit 131 and the microphone 122 are disposed in regions adjacent to the other end. The user input unit 132, the interface 170, and the like are disposed on the side surfaces of the front case 101 and the rear case 102.

The user input unit 130 is manipulated to receive a command for controlling the operation of the portable terminal 100 and may include a plurality of operation units 131 and 132.

The manipulation units 131 and 132 may also be collectively referred to as manipulating portions, and may be employed in any manner as long as the user operates the tactile manner with a tactile feeling.

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

The light sensor 141 may be located on one side of the case of the mobile terminal. The mobile terminal may include a light sensor 141a on the left side of the mobile terminal, a light sensor 141b on the upper side, and a light sensor 141c on the right side. The light sensor is located at the position as described above only as an example and is not limited thereto. The light sensor may be disposed on the lower side, the upper side, and the lower side of the mobile terminal as necessary. In addition, the number of light detection sensors 141 may be variously changed according to a user's request.

FIG. 2B is a rear perspective view of the portable terminal shown in FIG. 2A.

Referring to FIG. 2B, a camera 121 ′ may be additionally mounted on the rear of the terminal body, that is, the rear case 102. The camera 121 'may have a photographing direction substantially opposite to the camera 121 (see FIG. 2A), and may be a camera having different pixels from the camera 121.

For example, the camera 121 has a low pixel so that the user's face is photographed and transmitted to the counterpart in case of a video call, and the camera 121 'photographs a general subject and does not transmit it immediately. It is desirable to have a high pixel because there are many. The cameras 121 and 121 'may be installed in the terminal body such that they can be rotated or popped up.

A flash 123 and a mirror 124 are further disposed adjacent to the camera 121 '. The flash 123 shines light toward the subject when the subject is photographed by the camera 121 '. The mirror 124 allows the user to see his / her own face or the like when photographing (self-photographing) the user using the camera 121 '.

The sound output unit 152 'may be further disposed on the rear surface of the terminal body. The sound output unit 152 ′ may implement a stereo function together with the sound output unit 152 (see FIG. 2A), and may be used to implement a speakerphone mode during a call.

In addition to the antenna for a call or the like, a broadcast signal reception antenna 124 may be additionally disposed on the side of the terminal body. The antenna 124 constituting a part of the broadcast receiving module 111 (see FIG. 1) may be installed to be able to be drawn out from the terminal body.

A power supply unit 190 for supplying power to the portable terminal 100 is mounted on the terminal body. The power supply unit 190 may be embedded in the terminal body or may be directly detachable from the outside of the terminal body.

The rear case 102 may be further equipped with a touch pad 135 for sensing a touch. Like the display unit 151, the touch pad 135 may also be configured to have a light transmission type. In this case, if the display unit 151 is configured to output visual information from both sides, the visual information may be recognized through the touch pad 135. The information output on both surfaces may be controlled by the touch pad 135. Alternatively, a display may be additionally mounted on the touch pad 135, and a touch screen may be disposed on the rear case 102.

The touch pad 135 operates in association with the display unit 151 of the front case 101. The touch pad 135 may be disposed parallel to the rear of the display unit 151. The touch pad 135 may have the same or smaller size as the display unit 151.

Hereinafter, a method of controlling an object and a shadow according to an embodiment of the present invention will be described in detail. The method for controlling the object and the shadow according to an embodiment of the present invention may be implemented in the mobile terminal according to the embodiment of the present invention described above, or may be implemented by a system having a different configuration. However, for convenience of description, in describing the control method, the configuration shown in FIGS. 1 and 2 will be referred to.

3 is a flowchart illustrating an object and / or a shadow control method displayed on a display unit according to an embodiment of the present invention.

The mobile terminal may acquire intensity information of the light source (S310).

The intensity information of the light source may be measured through the light sensor 141. The controller 180 may convert the intensity of the light source measured by the light sensor 141 into digital data.

The light sensor 141 may be included in the sensing unit 140, and the sensing unit 140 may be represented as an acquirer.

The light sensor 141 may include a CDS light sensor, a photodiode sensor, a photoelectric sensor, a photomultiplier tube sensor, and the like.

When there is a plurality of pieces of information on the intensity of the light source acquired by the controller 180, the intensity of the light source may be determined as follows. That is, there may be a method of using the value of the strongest intensity of the light source among the light detection sensors as a criterion, a method of using the average value of the strongest intensity of the light source and the weakest measured value as a criterion. . In addition, the controller 180 may obtain intensity information of the light source through various algorithms.

The mobile terminal can acquire direction information of the light source (S320).

The controller 180 may obtain direction information of the light source by using a difference value of the intensity of the light source acquired by the light sensor 141. Alternatively, the controller 180 may acquire the direction information of the natural light by using the date and time information on the location of the natural light, for example, the sun or the moon.

In addition, the controller 180 may generate a control signal for controlling the color property and / or the shadow property of the object based on the obtained intensity and / or the direction of the light source (S330).

The color attribute of an object refers to three elements of color and may include at least one of color, contrast, and saturation. In addition, the attribute of the shade may include at least one of color, position, shape, contrast, saturation, size.

The display unit 151 may display an object and / or a shadow based on the generated control signal (S340).

Accordingly, the intensity and / or direction information of the light source may be obtained, and the color property and / or the shadow property of the object may be controlled based on the information.

These steps are not essential and may omit intermediate steps or add additional steps. For example, the controller 180 may control the color property and / or the shadow property of the object related to the intensity of the light source only by the intensity information of the light source, and the color property of the object related to the direction of the light source only by the direction information of the light source and / or Alternatively, you can control the properties of the shadow.

Hereinafter, a method of controlling contrast based on the intensity information of the light source will be described in detail.

4 is a flowchart of controlling contrast of an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention. In the flowchart of FIG. 3, among the color properties and the shadow properties of the object, a method of controlling contrast is described.

The controller 180 may obtain intensity information of the light source through the light sensor 141 (S410).

Control of the contrast of the object and / or the shadow may be based on intensity information of the light source. That is, the contrast control of the object and / or the shadow may be performed after obtaining the intensity information of the light source.

The controller 180 may compare the information on the intensity of the object and / or the shade currently displayed on the display unit 151 with the intensity information of the light source (S420).

In this case, the contrast of the object and / or the shadow corresponding to the intensity of a specific light source may be preset for the intensity of the light source. That is, the controller 180 may compare the contrast corresponding to the obtained intensity of the specific light source with the contrast of the object and / or the shade displayed on the current display unit.

The controller 180 may generate a contrast control signal of an object and / or a shadow (S430).

The control signal may be determined according to the comparison result described above. For example, the controller 180 may increase the contrast of the object and / or the shade when the contrast of the object and / or the shade currently displayed on the display unit 151 is lighter than the degree of the contrast corresponding to the obtained light source. The control signal may be generated so that the contrast of the object and / or the shade is lighter when the contrast of the object and / or the shade currently displayed on the display unit 151 is darker than the degree of the contrast corresponding to the obtained light source. Control signals can be generated. On the other hand, if the currently displayed contrast is appropriate, the current contrast can be maintained. In addition, depending on the user's setting, the contrast of the object and the shadow may be controlled in reverse.

Through the above steps, it is possible to control the contrast of the object and / or the shade according to the intensity of the light source.

5 is a flowchart of obtaining direction information of a light source according to an exemplary embodiment of the present invention. It will be described in more detail the step S320 described in FIG. The direction of the light source may include a two-dimensional direction in the same plane as the mobile terminal and a three-dimensional direction in which the height of the mobile terminal is different. In the following, the height for the terminal is synonymous with altitude.

First, the intensity of the light source may be obtained using the plurality of light detection sensors 141 (S510).

As described with reference to FIG. 2, each of the light detecting sensors 141a, 141b, and 141c may be located at each side of the mobile terminal 100. Since the light sensor 141 is located on different sides of the mobile terminal, the intensity of the light source obtained may vary according to the position of the light source. Although FIG. 2 illustrates an embodiment with three light sensors 141, this is only one embodiment, and an embodiment in which fewer or more light sensors are provided. In particular, by additionally providing a light sensor on the front of the mobile terminal, it is possible to more accurately obtain the information on the altitude with respect to the direction of the light source.

In addition, the controller 180 may convert the intensity of the light source into data (S520).

The controller 180 may convert the intensity of the light source into data and compare the intensity of the light sources measured by the respective light sensing sensors with each other (S530).

Based on the intensity of the compared light sources, direction information of the light sources may be obtained (S540).

The controller 180 may determine that the side of the light sensor having the largest intensity of the light source is measured in the direction of the light source among the intensity of the compared light sources. That is, when the intensity of the compared light source is in the order of light sensor 141a> light sensor 141b> light sensor 141c, the controller 180 controls the light source to the mobile terminal in the direction of light sensor 141a. It can be determined to be located in the left direction.

In addition, although not shown, the controller 180 may determine that the light source is located in the front direction of the mobile terminal when the light source measured by the light sensor located in the front of the mobile terminal is the strongest. That is, in the case of a mobile terminal in a plane, the controller 180 may determine that the light source is at a high altitude.

Thus, direction information of the light source can be obtained. The shadow may be located on an extension line leading to the object in the direction of the acquired light source. That is, the shadow may be controlled to be placed at the shadow position of the object by the light source.

However, when the direction information of the light source cannot be obtained, for example, when the acquired light intensities are the same and cannot be compared with each other, the shade may be placed at the set default position.

6 is a flowchart of controlling an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention. 6 illustrates an embodiment in which the intensity of the light source is obtained and the direction information of the light source is obtained by controlling the object and / or the shadow by the method described in the embodiment of FIG. 5. However, in the embodiment described with reference to FIG. 6, the method of obtaining direction information of the light source is not limited to the method described with reference to FIG. 5. Information or attributes of the light source may include intensity of the light source and direction information of the light source.

6 illustrates the light detecting sensors 141a, 141b, and 141c, the controller 180, and the display unit 151. In the present embodiment, there are three light sensors, but as described above, the mobile terminal may further include a light sensor in order to improve the accuracy of the direction information of the light source.

The light detection sensors 141a, 141b, and 141c may detect light and transmit intensity information of the light source to the controller 180 (S610, S620, and S630).

The controller 180 may acquire the intensity information of the light source and obtain the direction information of the light source by comparing the intensity information of the light source (S640 and S650).

The controller 180 may transmit the color attribute control signal and the shadow attribute control signal of the object to the display unit 151 based on the obtained intensity information of the light source and direction information of the light source (S660 and S670).

7A and 7B are perspective views illustrating implementations of objects and / or shadows in accordance with one embodiment of the present invention.

FIG. 7A illustrates that the display unit 151 displays an object when the obtained light source is strong and the light source is located at the upper left side with respect to the display unit 151. Here, the altitude of the mobile terminal of the light source will not be considered. The display unit 151 may display an object and a shadow according to the intensity and direction of the light source.

When the light source is strong, the display unit 151 may display the contrast of the object in dark. This allows the user to identify the object well. In addition, the display unit 151 may display the shadow of the object with respect to the light source. The display unit 151 displays the shadow at the shadow position of the object with respect to the light source. That is, the shadow may be located on an extension line connecting the position of the obtained light source and the object. Shading may also appear dark when the light source is strong. Therefore, the object displayed on the display unit 151 can be seen more clearly and three-dimensional.

FIG. 7B illustrates that the display unit 151 displays an object when the light source is weak and the light source is positioned at the upper right side with respect to the display unit 151.

When the light source is weak, in contrast to the embodiment of FIG. 7A, the display unit 151 may lightly display the contrast of the object. In addition, the contrast of the shadows may be displayed lightly. The shadow may be located at the bottom left of the object to form the shadow of the object with respect to the light source.

Therefore, the intensity of the object and the shadow is controlled according to the intensity of the light source, and the position of the shadow may be determined according to the position of the light source.

8 is a diagram for describing an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention.

As described above, the obtained information of the light source may include the intensity of the light source and the direction of the light source. The color properties of the object may include color, saturation, and contrast, and the properties of shadows may include location, shape, size, and contrast. Hereinafter, with reference to various embodiments, how to control the color property and the shadow property of the object according to the obtained information of the light source will be described in detail.

It is assumed that the direction of the light source is the upper left side with respect to the mobile terminal.

The position of the shadow shown in row 1 of the table can be seen as an attribute that determines where the shadow is located relative to the position of the object. The position of the shadow may include how far the shadow is located with respect to the object and where the shadow is located according to the direction of the light source.

In Example 1, the shadow is attached to the outer border of the object.

In Example 2, the shade is located at a distance from the outer edge of the object.

In the third embodiment, the shadow is positioned at a predetermined distance apart from the inner edge of the object.

Although not shown, the shadow may be attached to the inner edge of the object.

In addition, the controller 180 may be displayed at different positions along the periphery of the object so that the shadow may form a shadow of the object when the direction of the light source is changed.

The shape of the shade shown in the second row of the table may be controlled by the controller 180 in the following shape to give a three-dimensional effect to the object when the intensity of the light source is the same and the altitude of the light source changes.

In Embodiment 1, when the light source is located low with respect to the horizon where the mobile terminal is located, the shadow may be formed long with respect to the object. It's as if the shadow is long when the sun rises or falls.

In Embodiment 2, when the light source is located at an intermediate height, the shading may be shorter than that of Embodiment 1 with respect to the object.

In the third embodiment, the shading may be formed very short with respect to the object when the light source is at the highest level. If the sun is above your head, it's as if the shadow is short.

If the controller 180 cannot obtain the altitude information of the light source, the controller 180 may arbitrarily control the shape of the shadow based on the current time.

The size of the shadows in Table 3 shows how to control the thickness or length of the shadows when the intensity of the light source changes.

The size of the shadow may allow the user to arbitrarily set the size of the shadow even if the intensity of the light source does not change.

Example 1 shows that the shade is thin when the light source is weak.

Example 2 shows that the shade is slightly thicker than Example 1 when the light source is medium.

Example 3 shows that the shade is thicker than those of the first and second embodiments when the light source is strong.

The shading contrast shown in line 4 shows how the shading contrast is controlled when the intensity of the light source changes.

Example 1 shows that the shade is light when the light source is weak.

Example 2 shows that the shade is darker than Example 1 when the light source is medium.

Example 3 shows that when the light source is strong, the shade is displayed darker than Examples 1 and 2.

The contrast of the object shown in line 5 is also controlled in the same way as the contrast of the shade as the intensity of the light source changes.

Although the color and saturation of the object are not shown, controlling the color and saturation of the object according to the intensity of the light source is an extent that can be easily changed by those skilled in the art based on the above-described embodiments of the present invention. For example, when the light source is strong, the controller 180 may control the color of the object to have a red color system. When the light source is weak, the controller 180 may control the color of the object to a blue color system.

On the other hand, when the size of the shadow for the object is large, and the shadow overlaps with another object, the controller 180 prevents the size of the shadow from overlapping with another object, or the overlapping part is semi-transparent or transparent so that the other object The mark can be hidden.

When the intensity of the light source and the direction information of the light source are obtained, the color attribute and the shade attribute of the controllable object may also be implemented in various combinations. Hereinafter, an embodiment of controlling objects and shadows by various combinations will be described.

FIG. 9 illustrates an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention.

9 shows that the mobile terminal is located on the horizon, and the light sources are located at 910 to 950 for the mobile terminal, respectively. In this case, it is assumed that the light sources are weak when the positions of the light sources are 910 and 950 and the strongest when the light sources are 930. It can be compared to the sun's movement during the day.

The table shown below is divided into one row and two rows, respectively, according to the position of the shade when the light source is as described above.

The first line shows when the shadow is attached to the object.

Since the light source is weak when the light source is at 910, the controller 180 may weakly control the contrast of the object and / or the shadow. In addition, since the light source is on the left side with respect to the mobile terminal, the position of the shadow may be controlled to be located on the right side with respect to the object. And since the altitude of the light source is low, the shape of the shadow can be controlled to be formed long.

When the light source is at 920, the controller 180 may control the intensity of the object and / or the shadow to a medium level because the light source is medium. In addition, the shadow can be controlled to be located on the right side of the object. And since the altitude of the light source is high, the shape of the shadow can be controlled to be somewhat short.

When the light source is at 930, the controller 180 may control the intensity of the object and / or the shadow to be the darkest since the light source is the strongest. In addition, since the control unit 180 has a high altitude of the light source, the controller 180 may control the shape of the shadow to be shorter.

When the light source is at 940, the controller 180 may control the same other than the case where the light source is at 920.

Also, when the light source is at 950, the direction of the shadow is different from when the light source is at 910, and the other control can be controlled in the same way.

Table 2 shows when the shadows are spaced apart from the object.

Since the shadow is located at a predetermined distance apart from the object in the first row, the controller 180 may control other contrasts, positions of the shadows, and shapes of the shadows in the same manner.

10 is a flowchart for obtaining direction information of a light source according to another embodiment of the present invention. This embodiment can present a method of obtaining direction information of a light source by a method different from the embodiment described with reference to FIG. 5.

First, direction information of natural light may be acquired based on a date and current time information (S1010).

The controller 180 may obtain date and current time information, and may acquire a position of natural light, for example, a sun, based on the date and current time information.

The controller 180 can determine the position of the sun through a predetermined algorithm.

For example, the sun's south altitude can be calculated by the formula: "sun's south altitude = 90-local latitude + declination".

According to the above equation, when the latitude of Seoul, Korea, is about 37 degrees, the spring equinox and the south middle altitude are 53 degrees by 90-37 + 0. It can be seen that it is 76.5 degrees according to 90-37 + 23.5 when it is lower ground and 29.5 degrees when it is winter.

The controller 180 can obtain direction information of the mobile terminal (S1020).

The controller 180 may obtain direction information related to the orientation of the mobile terminal through the direction sensor 142 included in the sensing unit 140.

The direction sensor 142 is for sensing the orientation of the mobile terminal and may include a gyro sensor and a magnetic compass.

The controller 180 may obtain the direction of the light source for the mobile terminal by comparing the obtained direction information of the natural light with the obtained direction information of the mobile terminal (S1030).

Here, when the direction of the mobile terminal is changed, it is apparent to those skilled in the art that the relative direction of the object displayed on the display unit 151 with respect to the display unit 151 is fixed, and the relative direction of the object and natural light is changed.

The generation of the control signal of the object and / or the shade based on the obtained direction information is as described above.

The embodiment of FIG. 10 is advantageous in that, unlike FIG. 6, a plurality of light sensing sensors are not required to obtain direction information of the light source. In order to control the contrast of the object and / or the shadow displayed on the display unit 151, one light sensor may be added as required by the user.

11 is a flowchart for controlling an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention. The embodiment of FIG. 11 is based on obtaining intensity information of a light source through one light sensing sensor, and the direction of the light source is obtained by the method described in the embodiment of FIG. 10. 11 illustrates the light sensor 141, the direction sensor 142, the controller 180, and the display unit 151.

One light sensor 141 may transmit the intensity information of the light source to the controller 180 (1110).

Hereinafter, the intensity information of the light source may be a reference for generating a signal for controlling the contrast of the object and / or the shadow.

The direction sensor 142 may transmit direction information of the mobile terminal to the controller 180 (S1120).

The controller 180 may obtain direction information of the light source based on the date and time information (S1130), and compare the direction information of the mobile terminal 100 with the direction information of the light source (S1140).

The controller 180 may generate an object color attribute control signal and a shade attribute control signal based on the obtained intensity of the light source and the direction information of the light source and transmit the generated object control signal to the display unit 151 (S1150 and S1160).

In this case, when the intensity of the obtained light source is less than or equal to a predetermined value, the controller 180 can be regarded as the case where there is no natural light. Therefore, the controller 180 can generate the property control signal of the shadow by setting the direction of the shadow to a default value. The predetermined value may be set by the user for convenience.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention. Accordingly, such modifications or variations are intended to fall within the scope of the appended claims.

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

2A is a front perspective view of a mobile terminal according to an embodiment of the present invention.

2B is a rear perspective view of a mobile terminal according to an embodiment of the present invention.

3 is a flowchart illustrating an object and / or a shadow control method displayed on a display unit according to an embodiment of the present invention.

4 is a flowchart of controlling the contrast of an object and / or a shadow according to an embodiment of the present invention.

5 is a flowchart of obtaining direction information of a light source according to an exemplary embodiment of the present invention.

6 is a flowchart of controlling an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention.

7A and 7B are perspective views illustrating implementations of objects and / or shadows in accordance with one embodiment of the present invention.

8 is a diagram for describing an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention.

FIG. 9 illustrates an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention.

10 is a flow chart for obtaining direction information of a light source according to another embodiment of the present invention.

11 is a flowchart for controlling an object and / or a shadow displayed on a display unit according to an exemplary embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100: mobile terminal 140: sensing unit

141: light detection sensor 151: display unit

180: control unit

Claims (5)

A display unit displaying an object and a shadow of the object; At least one acquirer for obtaining an intensity of a light source received from an external light source; And Obtaining the direction of the light source with respect to the object based on a comparison result between the intensities of the light sources obtained through the acquiring unit and the direction information of natural light obtained based on current time and date information; A controller for controlling a color property or a shadow property of the object based on at least one of the directions of the light source Mobile terminal comprising a. The method of claim 1, Further comprising a direction sensor for obtaining the orientation of the mobile terminal, The controller may be configured to obtain a direction of the light source by comparing the direction information of the natural light with the orientation of the mobile terminal. The method of claim 1, And the controller controls the shadow property of the object such that the shadow of the object is positioned on an extension line leading to the object in the direction of the obtained light source. The method of claim 1, The color attribute includes at least one of hue, saturation and contrast, The shading property includes at least one of color, position, shape, contrast, saturation and size. A control method of a mobile terminal for displaying an object on a display unit, Obtaining an intensity of a light source received from the outside; Obtaining a direction of the light source; And Controlling a color property or a shadow property of an object displayed on the display unit based on at least one of the obtained intensity of the light source and the direction of the light source, Acquiring the direction of the light source, Acquiring a direction of the light source based on a comparison result between the intensities of the light sources obtained through a plurality of light sensing sensors disposed on different sides of the mobile terminal; or Acquiring a direction of the light source based on direction information of the natural light acquired based on current time and date information and an orientation of the mobile terminal; Control method of a mobile terminal.

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