KR101654723B1 - Mobile terminal - Google Patents

Abstract

The present invention relates to a portable terminal. More specifically, the present invention relates to a portable terminal having a projection function of an image by a projector module, and in order to adjust a projection angle of projection light provided by the projector module, the projection light is refracted or reflected using a refraction lens or a reflector And a portable terminal for adjusting the projection direction of the projection light.

Projector, terminal, refraction, lens, reflection, mirror

Description

[0001] MOBILE TERMINAL [0002]

The present invention relates to a portable terminal. More specifically, the present invention relates to a portable terminal having a projection function of an image by a projector module, and in order to adjust a projection angle of projection light provided by the projector module, the projection light is refracted or reflected using a refraction lens or a reflector And a portable terminal for adjusting the projection direction of the projection light.

A terminal can be divided into a mobile terminal and a stationary terminal depending on whether the terminal is movable or not. The portable terminal can be divided into a portable terminal (handheld terminal) and a vehicle mount terminal (portable terminal) according to whether the user can carry the portable terminal directly.

Such a terminal has various functions, for example, in the form of a multimedia device having multiple functions such as photographing and photographing of a moving picture, reproduction of a music or video file, reception of a game and broadcasting, etc. .

In recent years, portable terminals have absorbed the functions of independent multimedia devices, and their own areas are becoming diluted. In recent portable terminals, various still images or dynamic images can be taken, and the photographed images can be stored in the portable terminal and displayed on a display unit provided in the portable terminal. The image displayed on the display unit may be not only a photographed image, but also a data or broadcast image transmitted by wireless or wireline. Recently, a portable terminal employing a projector module as an output means of a portable terminal has been introduced.

Generally, projection light projected from an output device such as a projector is projected on a vertically installed screen or the like to display an image. However, portable terminals are flat and have a shape that is longer than the width. Thickness is also accelerating. Accordingly, when the projector module is mounted inside the portable terminal, the projection light projected from the portable terminal can be configured to be projected in the lateral direction or the front and rear direction of the housing constituting the main body.

However, when the projection light is projected in the lateral direction of the main housing constituting the main body of the portable terminal, when the portable terminal is laid down on the table and the projection light is projected, the projection light projected from the projector module is installed It is necessary to mount the portable terminal using a separate stand or the like.

Further, even if the projection angle of the projection light projected from the projector is artificially adjusted, a distortion of the image formed on the screen or the wall may occur, and a method for solving this problem is needed.

Therefore, when the projection angle of the projection light provided by the projector module is selectively adjusted, distortion of the image that can be generated by adjusting the projection angle can be removed. Portable terminals are required.

The present invention provides a portable terminal capable of adjusting a projection angle of projection light in a portable terminal having a projection function of an image by a projector module.

Another object of the present invention is to provide a method for solving the problems of chromatic aberration generated in the projection light, inversion of the image or change of the ratio of the image when the projection light is refracted or reflected to change the projection direction of the projection light We will do it.

According to an aspect of the present invention, there is provided a projector module including a display unit, a projector module for converting a video signal into a projection light and projecting the projection signal, a main housing for accommodating the display unit and the projector module, And a projection angle control member for reflecting the projection light to change the projection angle of the projection light.

Here, the projection angle adjusting member may be a refracting lens mounted inside the main housing or detachably mounted to the main housing, and refracting the projected light.

When the refracting lens is mounted inside the main housing, the refracting lens can be rotatably mounted between the main housing and the projection lens of the projector module.

In this case, the refraction lens is provided with a rotation axis at one end in the longitudinal direction, and the rotation of the rotation axis allows the projection light to be selectively incident on the refraction lens, or the incident angle of the projection light incident on the refraction lens can be changed .

Here, the rotation shaft is connected to the driving wheel, and the driving wheel may be mounted such that a part of the driving wheel is exposed to the outside of the main body housing.

The rotation shaft may be driven by a driving motor provided in the main body housing.

Here, the refracting lens may be provided inside the refractor housing, which is selectively attached to and detached from the main housing.

The rotation shaft is connected to a driving wheel, and the driving wheel may be mounted such that a part of the driving wheel is exposed to the outside of the refractor housing.

In this case, the projection angle adjusting member may be mounted inside the main body housing, or may be a reflector that is detachably mounted on the main housing and reflects the projection light.

Here, when the reflector is mounted inside the body housing, the reflector may be rotatably mounted between the projection lens of the projector module and the body housing.

In addition, the reflector may have a rotation axis at one end in the longitudinal direction, and the projection light may be selectively reflected by the reflector by rotation of the rotation axis, or the incident angle of the projection light incident on the reflector may be changed.

Here, the reflector may include one or two reflector housings inside the housing of the reflector that are selectively attached to and detached from the main housing.

When the two reflectors are provided, the driving wheel may be connected to the rotary shaft and the rotary shaft at one end of at least one of the reflectors, and the driving wheel may be partially exposed to the outside of the reflector housing.

In this case, the reflection device housing may be provided with a mounting projection in the form of a circular pipe, and the main housing may have a mounting groove into which the mounting projection is rotatably inserted.

Here, a projection unit may be provided on the front surface or the rear surface of the main body housing, the projection unit being formed of a light-transmitting material that reflects the projection light reflected by the reflecting mirror.

When the projection light projected from the projector module is refracted or reflected, the control module controls the projector module such that the projector module displays a temporary image for reversing the image or correcting or correcting the chromatic aberration It is possible to control the image signal by the image to be converted into the projection light.

According to the portable terminal of the present invention, by using the projector module provided in the portable terminal, images stored in the portable terminal can be projected and viewed.

According to another aspect of the present invention, there is provided a portable terminal having a projection function for projecting images by a projector module, the projection light being refracted or reflected through a refracting lens or a reflector 600 to adjust a projection angle of an image, The projection direction of the projected image can be adjusted.

In addition, the present invention can eliminate the chromatic aberration, the image ratio change, or the image inversion that may occur when the projection light projected from the portable terminal is refracted or reflected.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Like reference numerals designate like elements throughout the specification.

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

The portable 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 160, A controller 170, a controller 180, a power supply 190, and the like. The components shown in Fig. 1 are not essential, and a portable terminal having more or less components than those shown in Fig. 1 may be implemented.

Hereinafter, the components will be described in order.

The wireless communication unit 110 may include one or more modules for enabling wireless communication between the portable terminal 100 and the wireless communication system or between the portable terminal 100 and the network in which the portable 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 have.

The broadcast receiving module 111 receives broadcast signals 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 refer to a server for generating and transmitting broadcast signals and / or broadcast related information, or a server for receiving broadcast signals and / or broadcast related information generated by the broadcast management server and transmitting the generated broadcast signals and / or broadcast related information. The broadcast signal may include a TV broadcast signal, a radio broadcast signal, a data broadcast signal, and a broadcast signal in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

The broadcast-related information may refer to a broadcast channel, a broadcast program, or information related to 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, an EPG (Electronic Program Guide) of DMB (Digital Multimedia Broadcasting) or an ESG (Electronic Service Guide) of Digital Video Broadcast-Handheld (DVB-H).

For example, the broadcast receiving module 111 may be a Digital Multimedia Broadcasting-Terrestrial (DMB-T), a Digital Multimedia Broadcasting-Satellite (DMB-S), a Media Forward Link Only And a Digital Broadcasting System (ISDB-T) (Integrated Services Digital Broadcast-Terrestrial). Of course, the broadcast receiving module 111 may be adapted to other broadcasting systems 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 radio signals to 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 in response to a voice signal, a video call signal, or a text / multimedia message transmission / reception.

The wireless Internet module 113 is a module for wireless Internet access, and may be built in or enclosed in the portable terminal 100. WLAN (Wi-Fi), 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. Bluetooth, Radio Frequency Identification (RFID), infrared data association (IrDA), Ultra Wideband (UWB), ZigBee, and the like can be used as a short range communication technology.

The position information module 115 is a module for obtaining the position of the portable terminal, and a representative example thereof is a Global Position System (GPS) module.

1, an A / V (Audio / Video) input unit 120 is for inputting an audio signal or a video signal, and may include a camera module 121 and a microphone 122. The camera module 121 processes image frames such as still images or moving images obtained by the image sensor in the video communication mode or the photographing mode. The processed image frame can be displayed on the display unit 151 or projected to the outside by the projector module 155. [

The image frame processed by the camera module 121 may be stored in the memory 160 or transmitted to the outside through the wireless communication unit 110. [ More than one camera module 121 may be provided depending on the use environment. The camera module 121 may include a sensor for measuring the brightness or illumination of the subject.

The microphone 122 receives an external sound signal through a microphone in a communication mode, a recording mode, a voice recognition mode, or the like, and processes it as 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. Various noise reduction algorithms may be implemented in the microphone 122 to remove noise generated in receiving an external sound signal.

The user input unit 130 generates input data for a user to control the operation of the terminal. The user input unit 130 may include a key pad dome switch, a touch pad (static / static), a jog wheel, a jog switch, and the like. The sensing unit 140 senses the current state of the portable terminal 100 such as the opening and closing state of the portable terminal 100, the position of the portable terminal 100, the presence or absence of user contact, the orientation of the portable terminal, And generates a sensing signal for controlling the operation of the portable terminal 100. For example, when the portable terminal 100 is in the form of a slide phone, it is possible to sense whether the slide phone is opened or closed. In the case of the folder phone, it is possible to detect whether the folder is opened. It is also possible to sense whether the power supply unit 190 is powered on, whether the interface unit 170 is connected to an external device, and the like. Meanwhile, the sensing unit 140 may include a proximity sensor 141.

The output unit 150 is for generating output related to visual, auditory or tactile sense and includes a display unit 151, an acoustic output module 152, an alarm unit 153, a haptic module 154, (155), and the like.

The display unit 151 displays (outputs) information processed in the portable terminal 100. For example, when the portable terminal is in the call mode, a UI (User Interface) or GUI (Graphic User Interface) related to the call is displayed. When the portable terminal 100 is in the video communication mode or the photographing mode, the photographed and received video, UI, and GUI are displayed.

The display unit 151 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED), a flexible display display, and a 3D display.

Some of these display portions may be configured to be transparent or light transmissive so that they can see the outside through them. This can be referred to as a transparent display, and a typical example of the transparent display is TOLED (Transparent OLED) and the like. The rear structure of the display unit 151 may also be of a light transmission type. With this structure, the user can see an 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 embodiment of the portable terminal 100. For example, in the portable terminal 100, a plurality of display portions may be spaced apart from one another or may be disposed integrally with each other, or may be disposed on different surfaces.

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

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated in a specific portion of the display unit 151 into an electrical input signal. The touch sensor can be configured to detect not only the position and area to be touched but also the pressure at the time of 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 transmits the corresponding data to the controller 180. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

Referring to FIG. 1, a proximity sensor 141 may be disposed in an inner region of the portable terminal or the proximity of 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. And to detect the proximity of the pointer by the change of the electric field along the proximity of the pointer when the touch screen is electrostatic. In this case, the touch screen (touch sensor) may be classified as a proximity sensor.

Hereinafter, for convenience of explanation, the act of recognizing that the pointer is positioned on the touch screen while the pointer is not in contact with the touch screen is referred to as "proximity touch & The act of actually touching the pointer on the screen is called "contact touch. &Quot; The position where the pointer is proximately touched on the touch screen means a position where the pointer is vertically corresponding to the touch screen when the pointer is touched.

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 detected proximity touch operation and the proximity touch pattern may be output on the touch screen.

The audio 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 mode, a call mode or a recording mode, a voice recognition mode, a broadcast reception mode, The sound output module 152 also outputs sound signals related to functions (e.g., call signal reception sound, message reception sound, etc.) performed in the portable terminal 100. The audio output module 152 may include a receiver, a speaker, a buzzer, and the like. In addition, the sound output module 152 may be provided with a plurality of modules for the communication mode and a module for outputting sounds generated at the time of reproduction of multimedia or the like.

The alarm unit 153 outputs a signal for notifying the occurrence of an event of the portable terminal 100. Examples of events that occur in the portable terminal include signal reception, message reception, key signal input, touch input, and the like. The alarm unit 153 may output a signal for notifying the occurrence of an event in a form other than the video signal or the audio signal, for example, vibration. The video signal or the audio signal may be output through the display unit 151 or the audio output module 152 so that they may be classified as a part of the alarm unit 153.

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

In addition to the vibration, the haptic module 154 may include a pin arrangement vertically moving with respect to the contact skin surface, a spraying force or a suction force of the air through the injection port or the suction port, a touch on the skin surface, contact with an electrode, And various tactile effects such as an effect of reproducing a cold sensation using an endothermic or exothermic element can be generated.

The haptic module 154 can be implemented not only to transmit the tactile effect through the direct contact but also to allow the user to feel the tactile effect through the muscular sensation of the finger or arm. The haptic module 154 may include two or more haptic modules 154 according to the configuration of the portable terminal 100.

The projector module 155 is provided to convert the image signal into projection light and project it. The projector module 155 can convert the still image or the dynamic image photographed by the camera module 121 into projection light and project it.

In addition, the image or image projected from the projector module 155 may be an image or an image included in a video signal wirelessly received from the outside via the wireless communication unit 110. [ When the image of the subject is photographed using the camera module 121, the projector module 155 projects the stored image on the storage module 160 as a projection light or is photographed by the camera module 121 The sound output module 152 can output sound signals inputted from the microphone 122 or stored in the storage unit 160 as sounds.

Similarly, when projecting the image signal received from the outside wirelessly through the wireless communication unit 110 as projection light, the sound output module 152 can output the sound signal together with the image signal when the sound signal is provided .

As the projector module 155, a transmissive LCD panel or an Lcos panel or the like may be employed as a video device, and an LED or the like may be used as a light source. Recently, as a projector module, a projector module of a laser light system has been introduced. The projector module of the laser light system can be applied to a portable projector because the time consumed for preheating is very short and the power consumption is small.

The memory 160 may store a program for the operation of the controller 180 and temporarily store input / output data (e.g., a phone book, a message, a still image, a moving picture, etc.). The memory 160 may store data on vibration and sound of various patterns outputted when a touch is input on the touch screen.

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 (Random Access Memory), SRAM (Static Random Access Memory), ROM (Read Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), PROM A disk, and / or an optical disk. The portable terminal 100 may operate in association with a web storage that performs a storage function of the memory 160 on the Internet.

The interface unit 170 serves as a path for communication with all the external devices connected to the portable terminal 100. The interface unit 170 receives data from an external device or supplies power to each component in the portable terminal 100 or allows data in the portable terminal 100 to be transmitted 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 for storing various information for authenticating the usage right of the portable terminal 100 and includes a user identification module (UIM), a subscriber identity module (SIM), a general user authentication module A 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.

When the portable terminal 100 is connected to an external cradle, the interface unit may be a path through which power from the cradle is supplied to the portable terminal 100, or various command signals input from the cradle by the user It can be a passage to be transmitted to the terminal. The various command signals or the power source inputted from the cradle may be operated with a signal for recognizing that the portable terminal is correctly mounted on the cradle.

The controller 180 typically controls the overall operation of the portable terminal. For example, voice communication, data communication, video communication, and the like. The control unit 180 may include a multimedia module 181 for multimedia playback. The multimedia module 181 may be implemented in the control unit 180 or may be implemented separately from the control unit 180. [

The controller 180 may perform a pattern recognition process for recognizing handwriting input or drawing input performed on the touch screen as characters and images, respectively.

The power supply unit 190 receives external power and internal power under the control of the controller 180 and supplies power necessary for operation of the respective components.

The various embodiments described herein may be embodied 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, micro-controllers, microprocessors, and electrical units for performing other functions.

In some cases, such embodiments may be implemented by the controller 180.

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

2 is a perspective view of an example of the portable terminal 100 related to the present invention.

The body of the portable terminal 100 shown in FIG. 2 may be provided in the form of a bar. However, the present invention is not limited thereto. The present invention can be applied to various structures such as a slide type, a folder type, a swing type, and a swivel type in which two or more bodies are movably coupled to each other. do.

The body includes a case that forms the appearance. In this embodiment, the case may be divided into a front case 101 and a rear case 102. [ A variety of 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 provided between the front case 101 and the rear case 102.

The cases may be formed by injection molding a synthetic resin or may be formed of a metal material such as stainless steel (STS), aluminum (Al), titanium (Ti) or the like.

The front body 101 mainly includes a display unit 151, an audio output unit 152, a first camera module 121, user inputs 130-1 / 131-1 and 132, a microphone 122, (170), and the like.

As described above, when a display unit 151 and a sensor (hereinafter referred to as a 'touch sensor') that detects a touch operation form a mutual layer structure (hereinafter referred to as a 'touch screen' May be used as an input device as a user input unit in addition to an output device. The touch sensor may have the form of a touch film, a touch sheet, a touch pad, or the like as described above.

The touch sensor may be configured to convert a change in a pressure applied to a specific portion of the display unit 151 or a capacitance generated at a specific portion of the display unit 151 into an electrical input signal, Not only the area but also the pressure at the time of touch can be detected.

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 transmits the corresponding data to the controller 180 of Fig. Thus, the control unit 180 can know which area of the display unit 151 is touched or the like.

An acoustic output unit 152 and a first camera module 121 are disposed in an area adjacent to one end of both ends of the display unit 151 and a first user input unit 131 and a microphone . The second user input unit 132 and the interface unit 170 may be disposed on the side surfaces of the front case 101 and the rear case 102. The user input unit may include a command for controlling the operation of the portable terminal 100 And may include first, second, and third user inputs 131, 132, and 133, which are operated to receive input.

The first, second and third user inputs 131, 132, and 133 may be employed in any manner as long as the operation unit is in a tactile manner in which the user operates with a tactile impression.

The contents input by the first, second and third user input units 131, 132, and 133 may be variously set. For example, the first user input unit 131 receives commands such as start, end, scroll, and the like, and the second user input unit 132 controls the size of the sound outputted from the sound output unit 152, To the touch recognition mode of the touch screen.

The third user input unit 133 may be a control signal input unit for controlling the camera module or the like and may be disposed on the side surfaces of the front case 101 and the rear case 102 in the same manner as the second user input unit 132 .

In addition, the portable terminal according to the present invention includes a projector module 155. The projector module 155 includes a projection lens, a light source, and an image element for converting an image signal into an image. The projector module 155 is a concept including a light sensor necessary to project the projection light or a brightness or illumination of the subject, and may be modularized into one unit.

The projector module 155 is installed inside the front case 101 and the rear case 102 constituting the main body of the portable terminal, and is installed so that the projection lens is exposed to the outside, thereby projecting the projection light.

The projector module 155 may be installed at one end in the longitudinal direction of the portable terminal. In the embodiment shown in FIGS. 2 and 3, the projector module 155 is provided at an upper portion of the portable terminal. The projection lens of the projector module 155 is mounted so as to be exposed at one end side in the longitudinal direction.

The projector module 155 may receive a video signal as a broadcast signal received from the outside via the wireless communication unit 110 wirelessly or stored in the storage unit 160 or the like, And can be projected.

When the image signal is converted into projection light by using the projector module 155 and projected, it is inconvenient for the user to hold the portable terminal and project the image. Therefore, it is necessary to mount the projection image on the fixed object and project it. Therefore, the portable terminal according to the present invention employs a projection angle adjusting member for changing the projection direction of the projection light projected from the projector module. We will delay the detailed explanation.

3 is a rear perspective view of the portable terminal shown in FIG.

In FIG. 3, a second camera module 121 'may be provided on the rear surface of the rear case 102. The second camera module 121 'may be a camera module having different pixels from the first camera module 121 (see FIG. 2).

For example, the first camera module 121 has low pixels so that it is easy to capture a face of a user in the case of a video call or the like and send it to the other party, and the second camera module 121 ' And there are many cases in which it is not transmitted immediately, so it can have a high pixel.

Accordingly, the flash 123 and the mirror 124 may be further disposed near the second camera module 121 '. The flash 123 supplies light toward the subject when the subject is photographed by the second camera module 121 '. The mirror 124 enables the user to illuminate the user's own face or the like when the user intends to take a picture of himself / herself (self-photographing) using the second camera module 121 '.

In addition, a second sound output unit 152 'may be further disposed on the rear surface of the rear case 102. The second sound output unit 152 'may implement a stereo function together with the sound output unit 152 (see FIG. 2), and may be used for implementing a speakerphone mode during a call.

The second sound output unit 152 'may have a different output from the first sound output unit 152 shown in FIG. For example, the second sound output section 152 'may have a larger output than the first sound output section 152.

An antenna (not shown) for receiving a broadcast signal may be additionally disposed on the side of the portable terminal in addition to an antenna for a call or the like. An antenna constituting a part of the broadcast receiving module 111 (see FIG. 1) can 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 may be installed in the portable terminal. The power supply unit 190 may be built in or detachable from the outside of the terminal body. The power supply unit 190 may be a rechargeable battery.

In order to project an image using the portable terminal 100, the housing of the portable terminal 100 is held in an upright position (when the projector module 155 is mounted on the front or rear surface of the case) When the projector module 155 is mounted on the side surface of the housing, as shown in Figs. 2 and 3). When the portable terminal is laid down, the image to be photographed or the projected light is interfered with by the stationary surface.

Therefore, a method of adjusting the projection angle of the projection light projected from the projector module 155 is needed.

Hereinafter, a method of adjusting the projection angle of the projection light projected from the projector module 155 will be described with reference to the accompanying drawings. 2 and 3 will not be described in detail.

A portable terminal according to the present invention includes: a display unit; a projector module that converts a video signal into a projection light including an image and projects the projection light; A body housing for housing the display unit and the projector module; And a projection angle adjusting member for refracting or reflecting the projection light projected from the projector module to change the projection angle of the projection light. The firing angle adjustment member may be a refracting lens or a reflector 600.

4 illustrates one embodiment of a portable terminal according to the present invention. In the embodiment shown in Fig. 4, the projection angle adjusting member is a case in which the refraction lens 300 is employed.

In the portable terminal shown in FIG. 4, a projector module 155 is built in a main body housing to project the projection light toward the upper side of the portable terminal.

The projector module is a module in which the projection lens 155a for projecting the light provided from the light source is modularized into the housing 155b of the projector module. The projection lens 155a of the projector module may be disposed such that the projection lens 155a faces the projection unit 103 provided in the main body of the portable terminal.

The projection unit 103 may be a transparent glass or plastic, and may be a material capable of projecting the projection light without loss.

A refraction lens 300 as a projection angle adjusting member for refracting or reflecting the projection light projected from the projector module 155 and changing the projection angle of the projection light is disposed between the main housing, that is, the projection unit 103 and the projector module 155, May be provided.

The refraction lens 300 is mounted to change the projection direction of the projection light projected from the projector module 155 in the vertical direction.

In other words, in the portable terminal shown in FIG. 4, when the portable terminal is mounted on a table or the like without the refractive lens, since the portable terminal has a flat and long type main body housing, When the projection light is projected from the projection unit 103 side, the projection light may interfere with the upper surface (installation surface) of the table.

Accordingly, in order to avoid interference between the projection light and the installation surface of the table or the like in a state where the portable terminal is horizontally mounted on the installation surface, the projection angle must be adjustable.

Therefore, the refraction lens 300 interposed between the projector module 155 and the projection unit 103 adjusts the incident light upward.

The refracting lens 300 may have a rotation axis 310 at one end thereof. The rotating shaft 310 shown in FIG. 4 (a) is connected to the driving wheel 320. When the driving wheel 320 is rotated, the rotation axis 310 provided at one end of the refraction lens 300 is rotated, and as a result, the refraction lens 300 can be rotated.

(101, 102) so that a part of the driving wheel (300) is exposed to the outside of the main body housing. When a part of the driving wheel is exposed to the outside of the main body housing, the user can adjust the angle of the refracting lens by rolling the exposed driving wheel 320.

In order to expose a part of the driving wheel 320 to the outside, an opening 105 is formed in the body housing. In the embodiment shown in FIG. 4A, And may be formed on the front surface of the housing 101.

4 (b) is a cross-sectional view of the vicinity of the refracting lens 300 and the projector module 155 of the portable terminal shown in Fig. 4 (a).

The refracting lens 300 is disposed between the projector module 155 and the projection unit 103 of the main housing so that the projection light projected from the projection lens 155a of the projector module can be incident on the refraction lens 155. [ .

The refractive lens 300 may have a structure in which the thickness of the refracting lens 300 becomes thin from top to bottom. The projector module may have a length enough to allow the entire projection light projected from the projection lens to be incident thereon.

Fig. 4 (c) schematically shows the principle of changing the projection angle of the projection light incident on the refraction lens 300. Fig.

It is possible to adjust the projection light projected from the lens unit 155a of the projector module 155 or to decide whether or not to enter the refraction lens 300 selectively by the rotation of the rotation shaft 310. [ The principle in which the projection angle of the projection light is adjusted is shown in Fig. 4 (c), and a method of preventing the projection light from being incident on or incidence of the refraction lens will be described later.

The refractive lens 300 shown in FIG. 4 (c) has a transmissive prism structure in which the thickness of the refraction lens 300 is reduced from the upper portion to the lower portion.

When it is assumed that the projection light projected on the incidence surface rs of the refraction lens is incident perpendicularly to the incidence surface rs, the vertically projected projection light proceeds without additional refraction, It can be refracted while passing through the slope surface ps and the projection angle can be changed upward.

The incident angle x1 and the refraction angle y1 on the projection surface of the light 11 projected from the upper end of the projection light are such that the incident angle x1 is smaller than the refraction angle x1 y1. Therefore, the light 11 at the upper end of the projection light is projected upward, and the incident angle x2 and the refraction angle y2 of the light 12 projected from the lower end of the projection light are smaller than the refraction angle y2. Therefore, the light projected from the upper end of the projection light is projected upward.

The inclination of the incidence surface rs of the refracting lens 300 can be controlled by rotating the rotary shaft provided at one end of the refracting lens 300. In some cases, have.

5 shows another embodiment of a portable terminal according to the present invention. The overlapping portions of the description of the portable terminal shown in FIG. 4 will be omitted.

The portable terminal shown in FIG. 5 is common in that it has a refracting lens 300 as in the portable terminal shown in FIG. 4, but includes a driving motor 330 for providing a driving force for adjusting the installation angle of the refracting lens 300 ) Are provided.

That is, the drive motor 330 for driving the rotation shaft provided at one end of the refraction lens 300 is provided at one end. Accordingly, a user input unit (not shown) for driving the driving motor may be provided in the main body housing, and a user UI may be provided to adjust the projection direction of the projection light through the user input unit. Of course, a separate user input unit and control UI may be provided together.

6 shows another embodiment of a portable terminal according to the present invention. 6 (b) shows a state in which the refractor 400 is mounted, and Fig. 6 (b) shows a state in which the refractor 400 is mounted. Fig. 6 c) shows a cross-sectional view of the state where the refractor 400 is mounted.

In the embodiment shown in FIG. 6, the refraction lens 300 for adjusting the projection angle of the projection light is detachably installed in the main body housing of the portable terminal, not in the housing.

The refracting lens 300 for selectively controlling the projection angle of the projection light in the portable terminal shown in FIG. 6 may be provided inside the refractor housing 350 selectively attached to and detached from the main body housing. The refractor housing 350 may include at least one mounting protrusion 355 for selectively mounting the refractor housing 350 on the main housing, and the mounting protrusion 355 of the refractor housing may be inserted into the main housing. The mounting groove 107 may be provided at a corresponding position. The positions of the mounting protrusions 355 and the mounting grooves 107 may be changed with each other in the main housing and the refractor housing 350.

6, a rotation shaft 310 is mounted on one end of the refracting lens, and a driving wheel 320 for rotating the rotation shaft is mounted in the refracting device housing 310. In this embodiment, (Not shown). Therefore, the opening 355 for exposing a part of the driving wheel 320 to the outside may be formed in the refractor housing 350 and the principle of refraction of the projection light may be common to the embodiment shown in FIG. 4 do.

7 shows another embodiment of the refraction lens of the portable terminal according to the present invention.

7 (a) shows a state in which the refraction lens 300 mounted on the portable terminal adjusts the projection angle of the projection light projected from the projector module 155, 7 (b) shows a state in which the refraction lens 300 mounted on the portable terminal 7C shows a state in which the projection lens 300 is rotated with respect to the rotation axis 310 and the projection lens 300 is projected without being incident on the refraction lens 300. FIG. And the driving wheel 320 are connected to each other.

In the embodiment shown in FIG. 7, the refractive lens 300 is rotatably mounted between the projector module 155 and the projection portion 103 of the body housing, as in the embodiment shown in FIG. 4 or 5 . However, in the embodiment shown in FIG. 4, the projection light projected from the projector module is unconditionally entered into the refracting lens 300. Therefore, even if the refracting lens 300 is appropriately rotated to prevent the upward projection, the image may be distorted during the refraction process, so that the projection angle of the projection light can be adjusted up or down A method of preventing the projection light from being incident on the refraction lens is necessary.

As shown in FIG. 6, when the refractor 400 having the refracting lens 300 is detachably attached to and detached from the main housing, the refracting lens 300 is inserted into the main housing 101, A method for solving the problem is required.

7, when the rotation axis 310 provided at one end of the refraction lens 155 is provided in the vicinity of a vertex at one end in the reference longitudinal direction of the projection lens 300, the rotation axis 310 (See Fig. 4) for driving the refracting lens 300 (see Fig. 4) to operate the refracting lens 300 to rotate the refracting lens 300 to a position where the projected light projected from the projector module 300 is not incident The projected light projected from the projection lens of the projector module can be projected through the projection unit without being incident on the refraction lens, so that the adjustment of the projection direction by the refraction lens can be prevented.

As shown in FIG. 7, the refractive lens 300 has a shape of a slim triangular prism, and the main housing may have a space in which the refractive lens 300 is accommodated when the refractive lens 300 rotates .

As shown in FIG. 7 (c), the refractor has a slim triangular prism shape, and a rotary shaft 310 provided at one end thereof is connected to an upper portion of the refracting lens 300. The refracting lens 300 is positioned at a position where the lower portion of the refracting lens 300 is rotated and the projection light projected from the projector module 155 is not incident upon rotation of the rotation shaft.

8 shows another embodiment of the projection lens according to the present invention. Specifically, Figure 8 discloses another method for the refractive lens to selectively refract the projected light. Specifically, Fig. 8 (a) can selectively refract the projected light by a method in which the refraction lens 300 is displaced in the axial direction of the rotation axis.

8 (a) is a perspective view of the portable terminal, FIG. 8 (b) shows a state in which the projection lens of the portable terminal of FIG. 8 (a) refracts the projection light, (a) is displaced in the direction of its rotation axis and the projection light is projected without refraction.

8 differs from the embodiment shown in FIG. 7 in that the refraction lens shown in FIG. 8 blocks the incidence of the projection light by moving the refraction lens 300 in the direction of the rotation axis 310 A method of displacing it in the axial direction is used. The refracting lens 300 may selectively refract the projection light by using a method of displacing the refracting lens 300 in the axial direction of the rotation axis.

7, the projection lens 300 is rotated to block the incidence of the projection light. However, since the projection lens 300 needs to be rotated and accommodated to avoid the projection light, The distance between the projection lens 103 and the projection part 103 of the main body housing is increased. However, in the embodiment shown in FIG. 8, the refractive lens 300 is arranged in the axial direction of the rotation axis 310, The distance between the projector module 155 and the projection unit 103 of the main housing can be minimized and the refraction lens can be disposed inside the main housing.

Therefore, in the embodiment shown in FIG. 8, the opening 105 'formed in the main body housing to expose a part of the driving wheel 320 has a width in the axial direction of the rotating shaft .

The operation of displacing the refracting lens 300 may be performed by a user's hand, but may be performed automatically with a separate propulsion device (not shown).

9 shows another embodiment of a portable terminal according to the present invention. In the embodiment shown in Fig. 9, the reflecting mirror 600 is employed as the projection angle adjusting member for adjusting the projection angle of the projection light.

9 (a) shows a state in which the projection light projected from the projector module 155 is reflected by the reflector 600 mounted inside the main body housing of the portable terminal and the projection direction of the projection light is changed. FIG. 9 b shows a state in which the reflecting mirror 600 rotates so that the projected light is projected without reflecting the reflecting mirror 600.

Unlike the refractive lens of the above-described embodiments, the reflector 600 can reflect the projection light and adjust the projection angle of the projection light. The refracting lens 300 refracts the projection light transmitted through the refracting lens 300 to adjust the projection angle of the projection light. However, the embodiment shown in FIG. 9 reflects the projection light to change the projection angle of the projection light .

In the embodiment shown in FIG. 9, the projection part has a side surface (the first projection part 103) of the upper end of the main body housing, And the rear surface of the main body housing (two projection portions 103 ') are provided in the main body housing 103. However, the position and the number of the projection portions can be variously changed.

In the embodiment shown in FIG. 9, the second projection part 103 'is formed on the back surface of the main body housing, but the projection part may be provided on the front surface of the main body housing.

The projection unit may be formed of a light transmissive material (glass or transmission plastic) on which the projection light reflected by the reflector is projected.

9 (a), the projector module 155 is provided on the upper part of the main body housing, and the projection lens 155a of the projector module 155 is provided on the upper side of the main housing To project the projection light.

Therefore, if the reflecting mirror 600 does not reflect the projection light, the projection light is projected through the first projection unit 103. [

9A showing a state in which the projection light projected from the projector module 155 is reflected by the reflector 600 mounted inside the main body housing of the portable terminal and the projection direction of the projection light is changed, The reflector 600 is rotatable selectively by providing a rotary shaft 610 at one end thereof as in the above-described embodiments.

A driving wheel may be similarly provided on the rotating shaft 610, and a part of the driving wheel 620 may be exposed to the outside. The reflector 600 can selectively project the projection light to the first projection unit 103 and the second projection unit 103 'depending on whether the projection light is reflected or not, In the case of projecting the spotlight 103 ', the projection direction of the projection light projected onto the second projection unit 103' can be additionally adjusted. That is, in addition to changing the projection direction from the first projection part to the second projection part 103 ', the projection direction of the projection light projected onto the second projection part 103' can be additionally adjusted by rotating the reflection mirror.

When the incident angle of the projection light incident on the reflector 600 provided at the front end of the projection lens of the projector module in an inclined state is adjusted as shown in (2) of FIG. 9 (a), the second projection part 103 ' So that the projection angle of the projection light projected onto the screen can be adjusted.

9B illustrates a state in which the reflector 600 is rotated in parallel with the main body housing using a rotation shaft and a driving wheel provided in the reflector 600. [ The reflector 600 is in a state in which it does not interfere with the projection light as shown in (2) of FIG. 9 (b).

In the case shown in FIG. 9 (a), in case of projecting the projection light through the second projection unit 103 'provided on the back of the main body housing, the method can be used when projecting an image by erecting the portable terminal, In the case shown in FIG. 9 (b), when the projection light is projected to the side of the upper end of the main housing, when the portable terminal is laid down or when the user directly projects the portable terminal This is how you can.

FIG. 10 shows another embodiment of a portable terminal according to the present invention. The difference between the embodiment shown in FIG. 10 and the embodiment shown in FIG. 9 differs from the embodiment shown in FIG. 9 in that the mirror is provided by a driving motor 630 rather than a driving wheel for adjusting the reflection angle of the reflecting mirror 600.

The reflector 600 has a rotary shaft 610 at one end thereof and a drive motor 630 for driving the rotary shaft 610 is provided at one end of the reflector 600. The reflector 600 includes a user input unit for driving the drive motor 630 A user UI may be provided to adjust the projection direction of the projection light through the user input unit or a separate user input unit and a control UI may be provided together. And is similar to a portable terminal having a refracting lens.

11 shows another embodiment of the portable terminal according to the present invention. The portable terminal according to the present invention shown in FIG. 11 includes a reflection device 700 detachably installed in the main body housing. The reflective device 700 includes a reflector 600 therein.

11A is a perspective view of the portable terminal in which the main housing and the reflection device 700 are separated from each other. FIG. 11B shows a state in which the reflection device 700 of the portable terminal is mounted on the main housing of the portable terminal. And FIG. 11 (c) is a sectional view of the portable terminal with the reflection device 700 mounted thereon.

The projection light provided by the projector module 155 is projected through a projection part (or a projection lens) provided on the upper side of the main body housing when the reflection device 700 is not mounted, The reflective device 700 may be mounted to project the light toward the back side or the front side of the main body housing.

The reflective device 700 includes the refracting device and the refracting lens shown in FIG. 6, the refracting lens 600, and the projection direction of the projection light refracted or reflected by the refracting device or the reflecting device is the longitudinal direction of the main body There is a difference in the direction of the front surface or the back surface of the main body housing.

11 (c), the refractor 700 can change the projection angle of the image by reflecting the projection light provided by the projector module 155 in a state where the refractor 700 is mounted on the main body housing.

In addition to changing the projection direction of the projection light provided by the projector module 155 at right angles, the rotation angle of the projection light reflected from the reflector 600 may be adjusted by rotating the rotation axis 610 of the reflector 600 . Accordingly, upward projection or downward projection of the projection light may be possible in some cases.

11 has a rotating shaft 610 and a driving wheel 620 at one end of a reflecting mirror 600 like the refracting apparatus shown in FIG. 5, and the reflecting mirror 600, the rotating shaft 610, And a reflecting device housing 750 and a mounting protrusion 755 for receiving a part of the driving wheel 620 so as to be exposed. Therefore, a duplicated description will be omitted.

12 shows another embodiment of the portable terminal according to the present invention. The reflective device 700 shown in FIG. 12 differs in that it has two reflecting mirrors 600 therein.

If the two mirrors 600 are provided, the following advantages can be obtained. When one reflector 600 is provided, the image included in the projection light may be inverted. That is, when one reflecting mirror 600 is mounted or a reflecting device having one mirror 600 is mounted, the image may be reversed in the process of reflecting the projection light provided by the projector module 155 However, if the reflected projection light is reflected again by the additional reflector 600, the image is re-inverted and the same image as the original image can be appreciated.

In the portable terminal shown in FIG. 12, the reflection device has a first reflector 600 and a second reflector 600 'inside.

When the first reflector 600 and the second reflector 600 'are spaced substantially parallel to each other, the projection light provided by the projector module is reflected by the first reflector 600 and reflected by the second reflector 600' And the second reflector 600 'reflects the projection light again to project the image onto the screen or the wall surface.

Unlike the above-described refracting device or reflecting device, the reflecting device housing 750 may have a mounting projection 755 in the form of a circular pipe. The mounting protrusion may be formed in a pipe shape and the mounting groove 107 may be formed in such a manner that the circular pipe can be inserted therethrough so that the reflection device 700 is mounted on the main housing.

When the portable terminal is mounted on a table or the like in a state in which the reflection device 700 is not mounted, interference between the projection light and the installation surface may be generated, thereby increasing the projection height of the projection light.

The reflecting mirror 600 constituting the reflecting device 700 shown in FIG. 12 may also include a driving wheel 620 and a rotating shaft 610 so as to adjust an installation angle thereof.

In the reflection device shown in FIG. 12, the second reflector 600 'is provided with a rotation axis 610 and a driving wheel 620. When the installation angle of the second reflector 600 'is adjusted by rotating the driving wheel 620, the projection angle of the projection light reflected by the reflection device 700 can be adjusted.

13 shows the reflection and projection process of the projection light inside the reflection device shown in Fig. 13 (a) shows a case where light reflected by the reflection device is projected in a state of being changed only in height parallel to the direction in which the reflection device 700 is incident, FIG. 13 (b) The projection angle of the projection light projected from the reflective device 700 can be upwardly adjusted by reducing the incident angle a of the reflected projected light by rotating the second reflector 600 '

In the case of FIG. 13 (a), the angle of projection of the projection light is upwardly adjusted if the angle of incidence of the projection light reflected by the second reflector 600 'is' a'.

By this method, the projection direction of the projection light provided by the projector module 155 can be optimized.

In the embodiment shown in Figs. 2 to 13, a method of adjusting or changing the projection angle of the projection light provided by the projector module using a refraction lens (or refraction device) or a reflecting mirror . However, when the projection direction of the projection light is changed by using the refraction lens or the reflector, distortion of the image, for example, chromatic aberration, image reversal, or change of the aspect ratio may occur while refracting or reflecting the projection light . The distortion of the image increases as the distance between the portable terminal and the screen becomes longer. Such problems caused by using a refracting lens or a reflector can not be mechanically solved, but can be solved by a software method as will be described later.

Hereinafter, a method for solving the above-described problems will be examined using Figs. 14 to 17. Fig.

FIG. 14 illustrates a process of processing an image for correcting chromatic aberration that may occur when the portable terminal according to the present invention includes a refractive lens.

Since the refractive index of glass and the like becomes smaller as the wavelength of light becomes longer as in the case of a general transparent material, when the image of the object is made through the refracting lens, the phenomenon that the position or magnification of the image varies depending on the color of the object It is called a car. If you look at white light through a refractive lens with chromatic aberration, the shorter the wavelength of light, the farther away the focus is from the lens, the shorter the wavelength of light is closer to the lens, the closer the focus is to the lens.

That is, the projection light projected on the refraction lens applicable to the portable terminal according to the present invention is a mixture of light of various colors, and the light of purple series having the shortest wavelength while passing through the refraction lens The refraction angle is the largest when passing through a refracting lens, and the refraction angle is the smallest among red light with the longest wavelength.

Accordingly, among the projection light incident on the same point of the refracting lens provided by the projector module, the red color series of projection light is relatively less refracted and the purple series of projection light is relatively more refracted.

Fig. 14 (a) shows the original image, Fig. 14 (b) shows the projected image when the projection light projected from the projector module without the refraction lens is normally projected onto the screen, 14 (d) shows an image formed by the projection light passing through the refraction lens when the refraction lens is used for projecting the projected light projected from the module, and FIG. 14 (d) Fig. 14 (e) shows an image obtained by converting the temporary image of Fig. 14 (d) into projection light and projecting the projection image.

If the refraction lens is not used, the image formed by the projection light will be a distortion-free image as shown in Fig. 14 (b). If the refraction lens is used, , The image will be formed so as to reach a position higher in the upward direction than the letter "R" indicated in red in the refraction process of the letter "P" That is, chromatic aberration will occur if there is no proper correction process according to the difference in refractive index.

Therefore, when a refraction lens is used, in order to eliminate chromatic aberration as described above, the letter "P" in purple, as shown in Fig. 14 (d) Create a temporary image to be displayed.

Since the image shown in FIG. 14 (d) is an image formed when the projection light is generated by the provisionally processed image and is projected, when the image shown in FIG. 14 (d) is converted into projection light and projected onto the refraction lens, The same result as the original image can be obtained as shown in Fig. 14 (e).

In the embodiment shown in Figs. 4 to 8, when the refraction lens is used, an example for adjusting the projection direction of the projection light is used. Therefore, the chromatic aberration of the image shown in Fig. It is displayed as distorted. Therefore, in the case of using a refraction lens for adjusting the projection direction of the projection light downward, the purple-colored light shown in Fig. 14 (c) will be seen to be deviated downward rather than upward.

Since the image distortion due to the chromatic aberration can deteriorate the overall sharpness of the image due to the projection light, as shown in Figs. 14 (d) and 14 (e), the temporary image assuming the chromatic aberration is converted into the projection light 14 (e), distortion of the image due to the chromatic aberration can be reduced.

15 is a block diagram of a method of correcting chromatic aberration when a refractive lens is used.

A user who wants to project an image by the projector module projects the projection light from the projector module according to a user's control signal input through the control of the portable terminal (S100).

If the user sets the correction of the chromatic aberration in advance (S200) in preparation for chromatic aberration or selects the chromatic aberration correction (S200) during the projection process, in the embodiment shown in Figs. 2 to 8, Or the position of the refracting lens is sensed by the sensing unit 140 to determine whether the refracting lens is used (S300).

That is, when the angle and position of the refraction lens correspond to the angle and position at which the projection light is incident, the control unit generates a temporary image (S400), converts the temporary image into projection light (S500A) (S600A).

However, even if the user sets the correction of the chromatic aberration in advance (S200) in preparation for chromatic aberration or selects the chromatic aberration correction (S200) during the projection process, in the step of determining whether to use the refractive lens (S300) When the refractive lens is rotated at an angle at which the projection light is not incident, or when the position of the refractive lens is moved to a state in which the projection light is not incident, the user sets correction of the chromatic aberration in advance ) Or a chromatic aberration correction is selected during the projection process (S200), a correction operation for chromatic aberration is unnecessary.

Accordingly, in this case, the original image may be converted into the projection light (S500B) and the projection light by the original image may be projected (S600B).

As shown in FIGS. 7 and 8, in the portable terminal equipped with the refracting lens, the projection light may be incident on the projection lens.

Such a determination can be selectively performed by rotating or moving the refraction lens for adjusting the projection direction of the projection light so as to correct the chromatic aberration when the refraction lens is used. And the sensing unit of the portable terminal is capable of determining whether or not the projection light is incident on the refractive lens.

Accordingly, the sensing unit may be configured to sense whether the refraction lens refracts the projection light by detecting a rotational displacement or the like of the rotation axis of the refraction lens or the like.

FIG. 16 shows a process of processing an image for resolving the image reversal that may occur when the portable terminal according to the present invention includes the reflector 600. FIG.

16 (a) shows an original image for display on a projector module, and Fig. 16 (b) shows an image of a projected image when a projection light projected from a projector module without a reflecting mirror is normally projected on a screen, 16 (c) shows an image formed by the projection light reflected by the reflecting mirror when a reflecting mirror is used for changing the projection direction of the projection light projected from the projector module, and Fig. 16 (d) Fig. 16 (e) shows an image reflected by the reflector 600 and formed on a screen or the like, when the projection light including the temporary image of Fig. 16 (d) is projected onto the screen .

14, except that the reflector 600 is used in place of the refracting lens and the problem that occurs when one reflector 600 is used is image reversal instead of chromatic aberration, a temporary image for image reversal is generated The fact that the same image as the original image can be displayed by converting it into projection light, projecting it, and reflecting it by the reflecting mirror again has the same point as the case of using the refractive lens.

17 is a block diagram of a method for correcting image inversion when a reflector is used. A description of a correction method for eliminating the chromatic aberration generated when the refractive lens is used is omitted.

Likewise, it is determined whether the correction of the image reversal is selected (S100 (2)) or whether the correction of the image reversal is set (S100 (2)) (S300 (2)).

That is, when the angle or the position of the reflector corresponds to the angle and the position at which the projection light is reflected, the control unit generates a temporary image (S400 (2)) and converts the temporary image into projected light (S500A (2) , The projection light by the temporary image is projected (S600A (2)).

However, even if the user sets the correction of the image reversal in advance (S200 (2)) or the correction of the image reversal (S200 (2)) during the projection process in preparation for the occurrence of the image reversal, It is determined whether or not the reflecting mirror 600 is rotated at an angle at which projection light is not reflected on the reflecting mirror 600 or the position of the reflecting mirror 600 is moved to a state in which the projection light is not incident Even if the user sets the correction of the image reversal in advance (S200 (2)) in preparation for the occurrence of the image reversal or selects the correction of the image reversal during the projection process (S200 (2)), Calibration is unnecessary.

Therefore, in this case, the original image may be converted into the projection light (S500B (2)) and the projection light by the original image may be projected (S600B (2)).

In addition, when the projection light is projected upward by using a refractive lens and when the projection direction of the projection light is changed by using a reflecting mirror and when the projection direction is upwardly adjusted (refer to FIG. 13B) The image may be trapezoidalized.

As a method for resolving such problems by using a software technique such as dithering or by solving the problems of chromatic aberration and image inversion described above, such trapezoidalization of the image (the phenomenon that the width of the upper portion of the image is larger than the width of the lower portion) It can be solved to some extent by a method of generating a temporary image (the width of the upper portion of the image is smaller than the width of the lower portion).

While the present invention has been particularly shown and described with reference to preferred embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims. . It is therefore to be understood that the modified embodiments are included in the technical scope of the present invention if they basically include elements of the claims of the present invention.

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

2 is a perspective view of an example of the portable terminal 100 related to the present invention.

3 is a rear perspective view of the portable terminal shown in FIG.

4 illustrates one embodiment of a portable terminal according to the present invention.

5 shows another embodiment of a portable terminal according to the present invention.

6 shows another embodiment of a portable terminal according to the present invention.

7 shows another embodiment of the refraction lens of the portable terminal according to the present invention.

8 shows another embodiment of the projection lens according to the present invention.

9 shows another embodiment of a portable terminal according to the present invention.

FIG. 10 shows another embodiment of a portable terminal according to the present invention.

11 shows another embodiment of the portable terminal according to the present invention.

12 shows another embodiment of the portable terminal according to the present invention.

13 shows the reflection and projection process of the projection light inside the reflection device shown in Fig.

FIG. 14 illustrates a process of processing an image for correcting chromatic aberration that may occur when the portable terminal according to the present invention includes a refractive lens.

Fig. 15 is a graph showing the relationship between the chromatic aberration

.

FIG. 16 shows a process of processing an image for resolving the image reversal that may occur when the portable terminal according to the present invention includes the reflector 600. FIG.

17 is a block diagram of a method for correcting image inversion when a reflector is used.

Claims (16)

A display unit; A projector module that converts a video signal into projection light and projects the projected light through a projection lens; A body housing for housing the display unit and the projector module; A projection angle adjusting member provided between the projection lens and the main housing to refract or reflect the projection light projected from the projector module to change a projection angle of the projection light; And And a rotation axis biased to one side of the firing angle adjustment member, The rotation axis is provided off the optical path of the projection light, Wherein the incident angle or the angle of reflection of the incident light is changed when the projection light is selectively incident on the projection angle adjusting member by the rotation of the rotation axis or when the projection light is incident on the projection angle adjusting member. The method according to claim 1, Wherein the projection angle adjusting member is a refraction lens that is mounted inside the main housing or detachably mounted on the main housing and refracts the projection light. delete delete The method according to claim 1, Wherein the rotation shaft is connected to the driving wheel, and the driving wheel is mounted such that a part of the driving wheel is exposed to the outside of the main housing. The method according to claim 1, Wherein the rotation shaft is driven by a driving motor provided in the main body housing. The method according to claim 1, Wherein the projection angle adjusting member is provided inside the refractor housing selectively removably attached to the main housing. 8. The method of claim 7, Wherein the rotation shaft is connected to a driving wheel, and the driving wheel is mounted such that a part of the driving wheel is exposed to the outside of the refractor housing. The method according to claim 1, Wherein the projection angle adjusting member is a reflector mounted on the inside of the main body housing or detachably mounted on the main body housing to reflect the projection light. delete delete 10. The method of claim 9, Wherein the reflector is provided with one or two reflector housings inside the housing of the main body selectively removably attached to the main housing. 13. The method of claim 12, And a drive wheel connected to a rotation axis and a rotation axis at one end of at least one of the reflectors of the reflector and partially exposed to the outside of the reflector housing when the two reflectors are provided. 13. The method of claim 12, Wherein the reflection device housing is provided with a mounting projection in the form of a circular pipe, and the body housing is provided with a mounting groove into which the mounting projection is rotatably inserted. 10. The method of claim 9, Wherein the projection unit is formed of a light transmissive material on the front surface or the rear surface of the main housing when the reflector is mounted inside the main housing. The method according to claim 1, Wherein when the projection light projected from the projector module is refracted or reflected, the control module controls the projector module to display a temporary image for correcting or correcting the image reversal or chromatic aberration And converts the video signal by the video signal into the projection light.

Images