Display device and method for controlling the same

Abstract

The present disclosure relates to a display device and a control method thereof that can accurately and quickly verify the state in which a display device is installed at a site, wherein the display device comprises a display, a sensing unit, a communication unit, and a control unit, and the control unit can control the transmission of a notification indicating an abnormality in the installation tilt of the display device to a preset external device through the communication unit when the difference between the sensing value and a reference angle is greater than or equal to a reference range.

Description

Technology Field

[0001] The present disclosure relates to a display device and a method for controlling the same. Background Technology

[0002] A display device refers to a single mechanical unit that forms an exterior by mounting a display module.

[0003] With the recent advancement of the information society, various display modules such as LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electro Fluorescent Display), and VFD (Vacuum Fluorescent Display) are being developed and used.

[0004] Some types of display devices generally feature large-inch display modules and are located outdoors or in large indoor spaces. Such display devices can be referred to as digital signage and function as digital video equipment installed in public places such as airports, hotels, and hospitals to provide broadcast programs, specific information, and serve as communication tools capable of inducing marketing, advertising, training effects, and customer experience.

[0005] FIG. 1 is an example of a display device installed outdoors according to the prior art.

[0006] As shown in FIG. 1, an outdoor display device (100) may tilt or fall over in a direction different from its original installation direction due to various external factors such as typhoons, earthquakes, and shocks.

[0007] However, there is a problem in that it is difficult for the user operating the display device (100) to check the installation status of the display device (100) installed at the site unless they visit the site in person to check or check with a CCTV camera that films the display device (100). The problem to be solved

[0008] The present disclosure is proposed to solve such problems and aims to provide a display device and a control method thereof that enable accurate and rapid verification of the state in which the display device is installed at the site. means of solving the problem

[0009] To achieve the above objective, the present disclosure may provide a display device comprising a display, a sensing unit, a communication unit, and a control unit, wherein the control unit periodically acquires a sensing value regarding the installation tilt of the display device through the sensing unit, and controls the transmission of a notification indicating that there is an abnormality in the installation tilt to a preset external device through the communication unit when the difference between the sensing value and a reference angle is greater than or equal to a reference range.

[0010] The above control unit can control the reference angle and the reference range so that they can be set by the user through an initial setting screen.

[0011] If the reference angle and the reference range are not set by the user through the initial setting screen, the control unit can set the installation tilt of the display device sensed through the sensing unit immediately after the end of the initial setting screen as the reference angle and the default value as the reference range.

[0012] The control unit defines a storage array for sequentially storing sensing values ​​periodically acquired through the sensing unit, wherein the array may include a plurality of regions.

[0013] The control unit can control the transmission of a notification indicating an abnormality in the installation tilt to an external device through the communication unit if the difference between the median value and the reference angle is greater than or equal to the reference range, by comparing the median value among the sensing values ​​stored in a plurality of areas of the array with the reference angle.

[0014] The control unit may store the reference angle and the median value as log information when the difference between the median value and the reference angle is greater than or equal to the reference range.

[0015] The control unit can control the median value to be newly set to the reference angle if the difference between the median value and the reference angle is greater than or equal to the reference range and the reference angle is set by the user.

[0016] In addition, to achieve the above objective, the present disclosure may provide a method for controlling a display device comprising the steps of periodically acquiring a sensing value regarding the installation tilt of the display device through a sensing unit, and transmitting a notification indicating that there is an abnormality in the installation tilt to a preset external device through a communication unit when the difference between the sensing value and a reference angle is greater than or equal to a reference range. Effects of the invention

[0017] The effects of a display device equipped with a microphone and a control method thereof according to the present disclosure are described as follows.

[0018] According to at least one of the various aspects of the present disclosure, there is an advantage that the status of a display device installed at the site can be accurately and quickly verified. Brief explanation of the drawing

[0019] FIG. 1 is an example of a display device installed outdoors according to the prior art. FIG. 2 is a block diagram for explaining a display device according to one aspect of the present disclosure. FIG. 3 illustrates an example of a display device communicating with another external device according to one aspect of the present disclosure. FIG. 4 is a flowchart for setting a reference angle and a reference range for detecting an abnormality in the installation tilt of a display device according to one aspect of the present disclosure. FIG. 5 is a flowchart of a display device according to one aspect of the present disclosure detecting an abnormality in the installation tilt. FIG. 6 is an example of an array (or array) for storing sensing values ​​for detecting abnormalities in the installation tilt of FIG. 5. FIG. 7 is an example of log information that a display device according to one aspect of the present disclosure can provide in relation to an installation tilt abnormality. FIG. 8 is an example of another information that a display device according to one aspect of the present disclosure can provide in relation to an installation tilt. Specific details for implementing the invention

[0020] Hereinafter, embodiments disclosed in this disclosure will be described in detail with reference to the attached drawings. Identical or similar components, regardless of drawing symbols, are assigned the same reference number, and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the disclosure and do not inherently possess distinct meanings or roles. Furthermore, in describing embodiments disclosed in this disclosure, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this disclosure, such detailed description will be omitted. Additionally, the attached drawings are intended only to facilitate easy understanding of the embodiments disclosed in this disclosure; the technical concept disclosed in this disclosure is not limited by the attached drawings and should be understood to include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention.

[0021] These components may each be composed of separate individual hardware modules or implemented as two or more hardware modules, or two or more components may be implemented as a single hardware module, and, of course, in some cases, may also be implemented as software.

[0022] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0023] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0024] The singular expression includes the plural expression unless the context clearly indicates otherwise. In this disclosure, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the disclosure, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0025] In the present disclosure, the expression “at least one of A and B” may mean “A,” may mean “B,” or may mean both “A” and “B.”

[0026] Referring to FIG. 2, FIG. 2 is a block diagram for illustrating a display device related to the present disclosure.

[0027] The display device (100) may include a wireless communication unit (110), an input unit (120), a sensing unit (140), an output unit (150), an interface unit (160), a memory (170), a control unit (180), and a power supply unit (190), etc. Since the components illustrated in FIG. 2 are not essential for implementing the display device, the display device described herein may have more or fewer components than those listed above.

[0028] More specifically, among the above components, the wireless communication unit (110) may include one or more modules that enable wireless communication between the display device (100) and a wireless communication system, between the display device (100) and another display device (100), or between the display device (100) and an external server. Additionally, the wireless communication unit (110) may include one or more modules that connect the display device (100) to one or more networks.

[0029] This wireless communication unit (110) may include at least one of 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).

[0030] The input unit (120) may include a camera (121) or video input unit for inputting a video signal, a microphone (122) or audio input unit for inputting an audio signal, and a user input unit (123, e.g., a touch key, a mechanical key, etc.) for receiving information from a user. Voice data or image data collected from the input unit (120) may be analyzed and processed into a control command by the user.

[0031] The sensing unit (140) may include one or more sensors for sensing at least one of information within the display device, information of the surrounding environment surrounding the display device, and user information. For example, the sensing unit (140) may include at least one of a proximity sensor (141), an illumination sensor (142), a touch sensor, an acceleration sensor, a magnetic sensor, a gravity sensor (G-sensor), a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor (IR sensor), a fingerprint sensor, an ultrasonic sensor, an optical sensor (e.g., see camera (121)), a microphone (see 122), a battery gauge, an environmental sensor (e.g., a barometer, a hygrometer, a thermometer, a radiation detection sensor, a heat detection sensor, a gas detection sensor, etc.), and a chemical sensor (e.g., an electronic nose, a healthcare sensor, a biometric sensor, etc.). Meanwhile, the display device disclosed in this specification can utilize information sensed by at least two of these sensors in combination.

[0032] The output unit (150) is intended to generate output related to sight, hearing, or touch, and may include at least one of a display unit (151), an acoustic output unit (152), a haptic module (153), and an optical output unit (154). The display unit (151) may form a layered structure with a touch sensor or be formed integrally to implement a touch screen. This touch screen functions as a user input unit (123) that provides an input interface between the display device (100) and the user, and at the same time, can provide an output interface between the display device (100) and the user.

[0033] The interface section (160) serves as a passage for various types of external devices connected to the display device (100). This interface section (160) may include at least one of a wired / wireless headset port, an external charger port, a wired / wireless data port, a memory card port, a port for connecting a device equipped with an identification module, an audio I / O (Input / Output) port, a video I / O (Input / Output) port, and an earphone port. The display device (100) can perform appropriate control related to the connected external device in response to the connection of an external device to the interface section (160).

[0034] Additionally, the memory (170) stores data that supports various functions of the display device (100). The memory (170) can store a number of application programs (or applications) running on the display device (100), data for the operation of the display device (100), and commands. At least some of these application programs may be downloaded from an external server via wireless communication. Additionally, at least some of these application programs may exist on the display device (100) from the time of shipment for the basic functions of the display device (100). Meanwhile, the application programs may be stored in the memory (170), installed on the display device (100), and driven by the control unit (180) to perform the operation (or function) of the display device.

[0035] In addition to operations related to the application program, the control unit (180) typically controls the overall operation of the display device (100). The control unit (180) can provide or process appropriate information or functions to the user by processing signals, data, information, etc. that are input or output through the components described above, or by running an application program stored in memory (170).

[0036] Additionally, the control unit (180) can control at least some of the components examined with Figure 2 in order to run an application program stored in memory (170). Furthermore, the control unit (180) can operate at least two or more of the components included in the display device (100) in combination with each other to run the application program.

[0037] The power supply unit (190) receives external power and internal power under the control of the control unit (180) and supplies power to each component included in the display device (100). This power supply unit (190) includes a battery, and the battery may be a built-in battery or a replaceable battery.

[0038] At least some of the above components may operate in cooperation with each other to implement the operation, control, or control method of the display device according to various embodiments described below. Additionally, the operation, control, or control method of the display device may be implemented on the display device by running at least one application program stored in the memory (170).

[0039] Below, before examining various embodiments implemented through the display device (100) described above, the components listed above will be examined in more detail with reference to FIG. 2.

[0040] First, regarding the wireless communication unit (110), the broadcast receiving module (111) of the wireless communication unit (110) 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. Two or more of the broadcast receiving modules may be provided to the mobile terminal (100) for simultaneous broadcast reception or broadcast channel switching for at least two broadcast channels.

[0041] The above-mentioned broadcast management server may refer to a server that generates and transmits broadcast signals and / or broadcast-related information, or a server that receives previously generated broadcast signals and / or broadcast-related information and transmits it to a terminal. The above-mentioned broadcast signals include not only TV broadcast signals, radio broadcast signals, and data broadcast signals, but may also include broadcast signals in which a data broadcast signal is combined with a TV broadcast signal or a radio broadcast signal.

[0042] The above broadcast signal may be encoded according to at least one of the technical standards (or broadcasting methods, e.g., ISO, IEC, DVB, ATSC, etc.) for transmitting and receiving digital broadcast signals, and the broadcast receiving module (111) may receive the digital broadcast signal using a method suitable for the technical specifications set forth in the above technical standards.

[0043] The above broadcast-related information may refer to information related to a broadcast channel, a broadcast program, or a broadcast service provider. The above broadcast-related information may also be provided through a mobile communication network. In such cases, it may be received by the mobile communication module (112).

[0044] The above broadcast-related information may exist in various forms, for example, such as the Electronic Program Guide (EPG) of Digital Multimedia Broadcasting (DMB) or the Electronic Service Guide (ESG) of Digital Video Broadcast-Handheld (DVB-H). The broadcast signal and / or broadcast-related information received through the broadcast receiving module (111) may be stored in the memory (170).

[0045] The mobile communication module (112) transmits and receives wireless signals with at least one of a base station, an external terminal, and a server on a mobile communication network built according to technical standards or communication methods for mobile communication (e.g., GSM (Global System for Mobile communication), CDMA (Code Division Multi Access), CDMA2000 (Code Division Multi Access 2000), EV-DO (Enhanced Voice-Data Optimized or Enhanced Voice-Data Only), WCDMA (Wideband CDMA), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), 5G, etc.).

[0046] The above wireless signal may include various forms of data according to data communication.

[0047] The wireless internet module (113) refers to a module for wireless internet access and may be embedded in or externally mounted on the display device (100). The wireless internet module (113) is configured to transmit and receive wireless signals in a communication network according to wireless internet technologies.

[0048] Wireless internet technologies include, for example, WLAN (Wireless LAN), Wi-Fi (Wireless-Fidelity), Wi-Fi (Wireless Fidelity) Direct, DLNA (Digital Living Network Alliance), WiBro (Wireless Broadband), WiMAX (World Interoperability for Microwave Access), HSDPA (High Speed ​​Downlink Packet Access), HSUPA (High Speed ​​Uplink Packet Access), LTE (Long Term Evolution), LTE-A (Long Term Evolution-Advanced), 5G, etc., and the wireless internet module (113) transmits and receives data according to at least one wireless internet technology within a range that includes internet technologies not listed above.

[0049] From the perspective that wireless internet access via WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, 5G, etc. is achieved through a mobile communication network, the wireless internet module (113) that performs wireless internet access through the mobile communication network may be understood as a type of mobile communication module (112).

[0050] The short-range communication module (114) is for short-range communication and can support short-range communication by using at least one of Bluetooth™, RFID (Radio Frequency Identification), Infrared Data Association (IrDA), UWB (Ultra Wideband), ZigBee, NFC (Near Field Communication), Wi-Fi (Wireless-Fidelity), Wi-Fi Direct, and Wireless USB (Wireless Universal Serial Bus) technologies. This short-range communication module (114) can support wireless communication between a display device (100) and a wireless communication system, between a display device (100) and another display device (100), or between a network where a display device (100) and another display device (100, or an external server) are located, through a short-range wireless communication network. The short-range wireless communication network may be a short-range wireless personal area network.

[0051] The location information module (115) is a module for obtaining the location (or current location) of a display device, and representative examples thereof include a GPS (Global Positioning System) module or a WiFi (Wireless Fidelity) module. For example, if the display device utilizes a GPS module, it can obtain the location of the display device by using signals sent from GPS satellites. As another example, if the display device utilizes a WiFi module, it can obtain the location of the display device based on information from a Wireless Access Point (Wireless AP) that transmits or receives wireless signals from the WiFi module. If necessary, the location information module (115) may perform any of the functions of other modules of the wireless communication unit (110) to obtain data regarding the location of the display device, either by substitution or additionally. The location information module (115) is a module used to obtain the location (or current location) of the display device, and is not limited to a module that directly calculates or obtains the location of the display device.

[0052] Next, the input unit (120) is for inputting image information (or signal), audio information (or signal), data, or information input from a user. For inputting image information, the display device (100) may be equipped with one or more cameras (121). The camera (121) processes image frames, such as still images or video, obtained by an image sensor. The processed image frames may be displayed on the display unit (151) or stored in the memory (170). Meanwhile, the multiple cameras (121) provided in the display device (100) may be arranged to form a matrix structure, and through the cameras (121) forming such a matrix structure, multiple image information having various angles or focal points may be input to the display device (100). Additionally, the multiple cameras (121) may be arranged in a stereo structure to acquire left and right images for implementing stereoscopic images. Additionally, the plurality of cameras (121) may include a depth camera and / or a Time of Flight (TOF) camera for sensing the subject in three dimensions.

[0053] The microphone (122) processes an external acoustic signal into electrical voice data. The processed voice data can be utilized in various ways depending on the function (or application running) being performed on the display device (100). Meanwhile, various noise removal algorithms can be implemented in the microphone (122) to remove noise generated during the process of receiving an external acoustic signal.

[0054] The user input unit (123) is for receiving information from a user, and when information is input through the user input unit (123), the control unit (180) can control the operation of the display device (100) to correspond to the input information. Such user input unit (123) may include mechanical input means (or mechanical keys, for example, buttons, dome switches, jog wheels, jog switches, etc. located on the front, rear, or side of the display device (100)) and touch input means. As an example, the touch input means may consist of a virtual key, soft key, or visual key displayed on a touchscreen through software processing, or a touch key placed on a part other than the touchscreen. Meanwhile, the virtual key or visual key can be displayed on a touchscreen in various forms, and may consist of, for example, graphics, text, icons, videos, or a combination thereof.

[0055] Meanwhile, the sensing unit (140) senses at least one of information within the display device, information about the surrounding environment surrounding the display device, and user information, and generates a corresponding sensing signal. Based on this sensing signal, the control unit (180) can control the operation or function of the display device (100), or perform data processing, functions, or operations related to an application program installed on the display device (100). Representative sensors among the various sensors that may be included in the sensing unit (140) will be examined in more detail.

[0056] First, the proximity sensor (141) refers to a sensor that detects the presence or absence of an object approaching a predetermined detection surface or an object existing nearby using the force of an electromagnetic field or infrared rays without mechanical contact. Such a proximity sensor (141) may be placed in the internal area of ​​a display device enclosed by the touch screen described above, or near the touch screen.

[0057] Examples of proximity sensors (141) include transmissive photoelectric sensors, direct reflection photoelectric sensors, mirror reflection photoelectric sensors, high-frequency oscillating proximity sensors, capacitive proximity sensors, magnetic proximity sensors, infrared proximity sensors, etc. In the case where the touch screen is capacitive, the proximity sensor (141) may be configured to detect the proximity of said object by a change in the electric field due to the proximity of said object having a conductive property. In this case, the touch screen (or touch sensor) itself may be classified as a proximity sensor.

[0058] Meanwhile, for the sake of convenience of explanation, the act of bringing an object close to the touch screen without contacting it, thereby recognizing that the object is located on the touch screen, is named "proximity touch," and the act of actually making contact with the touch screen is named "contact touch." The position where an object is in proximity touch on the touch screen refers to the position where the object corresponds vertically to the touch screen when the object is in proximity touch. The proximity sensor (141) can detect proximity touch and proximity touch patterns (e.g., proximity touch distance, proximity touch direction, proximity touch speed, proximity touch time, proximity touch position, proximity touch movement state, etc.). Meanwhile, the control unit (180) processes data (or information) corresponding to the proximity touch operation and proximity touch pattern detected through the proximity sensor (141) as described above, and furthermore, can output visual information corresponding to the processed data on the touch screen. Furthermore, the control unit (180) can control the display device (100) so that different actions or data (or information) are processed depending on whether the touch on the same point on the touch screen is a proximity touch or a contact touch.

[0059] The touch sensor detects a touch (or touch input) applied to a touch screen (or display unit (151)) using at least one of various touch methods, such as a resistive method, a capacitive method, an infrared method, an ultrasonic method, or a magnetic field method.

[0060] As an example, a touch sensor may be configured to convert changes such as pressure applied to a specific part of a touch screen or capacitance occurring in a specific part into an electrical input signal. The touch sensor may be configured to detect the location, area, pressure at the time of touch, and capacitance at the time of touch of a touch object applying a touch to the touch screen. Here, the touch object is an object that applies a touch to the touch sensor, and may be, for example, a finger, a touch pen or stylus pen, a pointer, etc.

[0061] In this way, when there is a touch input to the touch sensor, the corresponding signal(s) are sent to the touch controller. The touch controller processes the signal(s) and then transmits the corresponding data to the control unit (180). Thus, the control unit (180) can determine whether any area of ​​the display unit (151) has been touched, etc. Here, the touch controller may be a separate component from the control unit (180) or may be the control unit (180) itself.

[0062] Meanwhile, the control unit (180) may perform different controls or the same controls depending on the type of touch target that touches the touch screen (or a touch key provided in addition to the touch screen). Whether to perform different controls or the same controls depending on the type of touch target may be determined based on the current operating state of the display device (100) or the application program currently running.

[0063] Meanwhile, the touch sensor and proximity sensor described above can be independently or in combination to sense various types of touches on a touch screen, such as short (or tap) touch, long touch, multi touch, drag touch, flick touch, pinch-in touch, pinch-out touch, swipe touch, hovering touch, etc.

[0064] The ultrasonic sensor can recognize location information of a detection target using ultrasound. Meanwhile, the control unit (180) can calculate the location of the wave source through information detected from the optical sensor and a plurality of ultrasonic sensors. The location of the wave source can be calculated by utilizing the property that light is much faster than ultrasound, that is, the time it takes for light to reach the optical sensor is much faster than the time it takes for ultrasound to reach the ultrasonic sensor. More specifically, the location of the wave source can be calculated by using the time difference between the time when the ultrasound arrives and the time when the light is a reference signal.

[0065] Meanwhile, the camera (121), as seen in the configuration of the input unit (120), includes at least one of a camera sensor (e.g., CCD, CMOS, etc.), a photo sensor (or image sensor), and a laser sensor.

[0066] A camera (121) and a laser sensor are combined to detect touch of a detection target on a three-dimensional stereoscopic image. The photo sensor can be stacked on a display element, and such a photo sensor is configured to scan the movement of a detection target that is close to the touch screen. More specifically, the photo sensor has Photo Diodes and TRs (Transistors) mounted in rows and columns, and scans the contents placed on the photo sensor using an electrical signal that changes according to the amount of light applied to the Photo Diode. That is, the photo sensor performs the calculation of the coordinates of the detection target according to the amount of light change, and through this, the position information of the detection target can be obtained.

[0067] The display unit (151) displays (outputs) information processed by the display device (100). For example, the display unit (151) can display execution screen information of an application running on the display device (100), or UI (User Interface) and GUI (Graphic User Interface) information based on such execution screen information.

[0068] In addition, the display unit (151) may be configured as a stereoscopic display unit that displays stereoscopic images.

[0069] The above-mentioned stereoscopic display unit may be equipped with three-dimensional display methods such as stereoscopic (glasses method), auto-stereoscopic (glasses-free method), and projection (holographic method).

[0070] The sound output unit (152) can output audio data received from the wireless communication unit (110) or stored in the memory (170). The sound output unit (152) may also output an audio signal related to a function performed by the display device (100). The sound output unit (152) may include a receiver, a speaker, a buzzer, etc.

[0071] The haptic module (153) generates various tactile effects that the user can feel. A typical example of the tactile effect generated by the haptic module (153) is vibration. The intensity and pattern of the vibration generated by the haptic module (153) can be controlled by the user's selection or the settings of the control unit. For example, the haptic module (153) may output different vibrations by synthesizing them or outputting them sequentially.

[0072] The haptic module (153) can produce various tactile effects in addition to vibration, such as effects caused by stimulation including a pin array moving vertically toward the contact skin surface, air jet or suction force through a nozzle or suction port, brushing against the skin surface, contact with an electrode, electrostatic force, and effects caused by the reproduction of cold or hot sensations using an element capable of endothermic or exothermic heat.

[0073] The haptic module (153) can not only transmit tactile effects through direct contact, but can also be implemented so that the user can feel tactile effects through the sense of touch of fingers or arms. Two or more haptic modules (153) may be provided depending on the configuration of the display device (100).

[0074] The light output unit (154) outputs a signal to indicate the occurrence of an event using the light of the light source of the display device (100). Examples of events occurring in the display device (100) may include receiving a message, an alarm, a schedule notification, receiving an email, receiving information through an application, etc.

[0075] The signal output by the light output unit (154) is implemented as the display device emits single-color or multiple-color light toward the front or rear. The signal output may be terminated when the display device detects the user's event confirmation.

[0076] The interface section (160) serves as a passage for all external devices connected to the display device (100). The interface section (160) receives data from external devices, supplies power to deliver to each component inside the display device (100), or allows data inside the display device (100) to be transmitted to external devices. 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 equipped with an identification module, an audio I / O (Input / Output) port, a video I / O (Input / Output) port, an earphone port, an HDMI (High Definition Multimedia Interface) port, a USB (Universal Serial Bus) port, a Thunderbolt port, a DisplayPort, etc., may be included in the interface section (160).

[0077] Meanwhile, the identification module is a chip that stores various information for authenticating the usage rights of the display device (100), and may include a user identification module (UIM), a subscriber identity module (SIM), a universal subscriber identity module (USIM), etc. A device equipped with an identification module (hereinafter referred to as the 'identification device') may be manufactured in the form of a smart card. Accordingly, the identification device may be connected to the terminal (100) through the interface unit (160).

[0078] Additionally, the interface section (160) may serve as a channel through which power from the cradle is supplied to the display device (100) when the display device (100) is connected to an external cradle, or as a channel through which various command signals input by a user from the cradle are transmitted to the display device (100). The various command signals input from the cradle or the power may operate as a signal to recognize that the display device (100) is correctly mounted on the cradle.

[0079] The memory (170) can store a program for the operation of the control unit (180) and can also temporarily store input / output data (e.g., phonebook, message, still image, video, etc.). The memory (170) can store data regarding various patterns of vibration and sound output when a touch input is made on the touch screen.

[0080] The memory (170) may include at least one type of storage medium among flash memory type, hard disk type, SSD type (Solid State Disk type), SSD type (Silicon Disk Drive type), multimedia card micro type, card type memory (e.g., SD or XD memory, etc.), RAM (random access memory; RAM), SRAM (static random access memory), ROM (read-only memory; ROM), EEPROM (electrically erasable programmable read-only memory), PROM (programmable read-only memory), magnetic memory, magnetic disk, and optical disk. The display device (100) may be operated in conjunction with web storage that performs the storage function of the memory (170) on the internet.

[0081] Meanwhile, as previously described, the control unit (180) controls operations related to the application and, typically, the overall operation of the display device (100). For example, if the state of the display device satisfies a set condition, the control unit (180) may execute or release a lock state that restricts the input of user control commands for the applications.

[0082] The control unit (180) can control one or a combination of the components described above in order to implement the various embodiments described below on the display device (100) according to the present disclosure.

[0083] The power supply unit (190) receives external power and internal power under the control of the control unit (180) and supplies power necessary for the operation of each component. The power supply unit (190) includes a battery, and the battery may be an internal battery that is rechargeable and may be detachably coupled to the terminal body for charging, etc.

[0084] Additionally, the power supply unit (190) may be provided with a connection port, and the connection port may be configured as an example of an interface (160) to which an external charger that supplies power for charging the battery is electrically connected.

[0085] As another example, the power supply unit (190) may be configured to charge the battery wirelessly without using the connection port. In this case, the power supply unit (190) may receive power from an external wireless power transmission device using one or more of an inductive coupling method based on magnetic induction or a magnetic resonance coupling method based on electromagnetic resonance.

[0086] Meanwhile, various embodiments described below may be implemented in a recording medium readable by a computer or a similar device, for example, using software, hardware, or a combination thereof.

[0087] Hereinafter, communication between a display device (100) and another external device (400) will be described with reference to FIG. 3. FIG. 3 illustrates an example of a display device communicating with another external device according to one aspect of the present disclosure.

[0088] The display device (100) may have a web server (200) built inside. The web server (200) is intended to allow an external device (400) to access the display device (100) through a network (300).

[0089] The external device (400) can remotely control the display device (100) or communicate data with the display device (100) by remotely connecting to the web server (200). Accordingly, the operator can remotely control the display device (100) or view and / or modify data within the display device (100) through the external device (400). For example, the control unit (180) can sense the current installation tilt angle of the display device (100) through the sensing unit (140), and the operator can view the current installation tilt angle of the display device (100) by remotely connecting to the web server (200) through the external device (400).

[0090] Meanwhile, the web server (100) may send an email notifying of the occurrence of a specific event to an email address pre-stored in the display device (100) when a specific event occurs in the display device (100). Examples of specific events may include an external impact detected through the sensing unit (140) or tilting beyond a predefined range. Accordingly, the operator may recognize that a specific event has occurred in the display device (100) by checking the email through an external device (400).

[0091] The web server (200) may be configured within the control unit (180) or may be configured as a separate component from the control unit (180) in the display device (100).

[0092] Hereinafter, with reference to FIG. 4, the setting of a reference angle and a reference range for detecting an abnormality in the installation tilt of a display device (100) will be described. FIG. 4 is a flowchart for setting a reference angle and a reference range for detecting an abnormality in the installation tilt of a display device according to one aspect of the present disclosure.

[0093] First, the power of the display device (100) can be turned on [S401].

[0094] Then, the control unit (180) can determine whether the display device (100) is in a factory initial state [S403]. Here, the factory initial state means that the various internal settings of the display device (100) are in a basic state as they were released from the factory.

[0095] When the display device (100) is in a factory initial state, the control unit (180) can control the display unit (151) to display an initial setting screen [S403, S405].

[0096] The user (or operator) can choose whether to set the reference angle directly through the initial setup screen [S407].

[0097] The user can choose not to set the reference angle directly and exit the initial setup screen [S409].

[0098] On the other hand, if the user chooses to set the reference angle directly, the control unit (180) can display the current installation tilt angle of the display device (100) detected through the sensing unit (140) [S411].

[0099] And, the control unit (180) can output a menu for setting a reference angle and a reference range. The user can set a reference angle and a reference range for detecting an abnormality in the installation tilt by referring to the current installation tilt angle and through the menu, and exit the initial setting screen [S413, S409].

[0100] If a reference angle and a reference range are set by the user, the control unit (180) can store the reference angle and reference range set by the user and use them to detect abnormalities in the installation tilt [S415, S417].

[0101] If the reference angle and reference range are not set by the user, the control unit (180) may set the current installation tilt angle to be the reference range and the range (default value) pre-set at the time of factory shipment to be the reference range [S415, S419, S421]. The current installation tilt angle may be the installation tilt of the display device sensed through the sensing unit (140) immediately after the end of the initial setting screen.

[0102] And, the control unit (180) can store the current installation tilt angle and the preset range (default value) as the reference angle and reference range, respectively [S417].

[0103] Meanwhile, if the display device (100) is not in a factory initial state, the control unit (180) can read the previously stored reference angle and reference range [S403, S423].

[0104] The reference angle may include, for example, a reference pitch angle and a reference roll angle, and the reference range may include a reference pitch range and a reference roll range corresponding to each of the reference pitch angle and the reference roll angle.

[0105] Hereinafter, with reference to FIGS. 5 and FIGS. 6, we will describe how to detect an abnormality in the installation tilt of a display device (100). FIGS. 5 is a flowchart of how a display device detects an abnormality in the installation tilt according to one aspect of the present disclosure. FIGS. 6 is an example of an array (or array) for storing sensing values ​​for detecting an abnormality in the installation tilt of FIGS. 5.

[0106] Before explaining Fig. 5, I will first explain the arrangement in Fig. 6.

[0107] An array (175) for storing sensing values ​​for detecting abnormalities in the installation tilt may be defined in the storage unit (or memory) (170). Additionally, a plurality of storage areas may be defined in the array (175). In FIG. 6, the array (175) is illustrated as including area 1, area 2, and area 3, but the present disclosure is not limited thereto.

[0108] The size of the array (175) or the size of each area can be changed in proportion to the sensing capability of the sensing unit (140).

[0109] An index may be defined to indicate an area for storing the currently sensed sensing value among the multiple storage areas of the array (175).

[0110] Hereinafter, with reference to FIG. 5, the sequence in which the display device detects an abnormality in the installation tilt will be described.

[0111] First, the control unit (180) can store the reference angle set in FIG. 4 in each of the area 1, area 2, and area 3 of the array (175) [S501].

[0112] The control unit (180) can set the index of the array (175) to point to area 1 [S503].

[0113] The control unit (180) can sense the current installation tilt angle (i.e., pitch angle and roll angle) of the display device (100) through the sensing unit (140) [S505]. The sensing period may vary depending on the product characteristics of the display device (100).

[0114] The control unit (180) can store the sensed current installation tilt angle in an area of ​​the array pointed to by the index (e.g., area 1) [S507].

[0115] The control unit (180) can find the median value among the sensing values ​​stored in areas 1, 2, and 3 of the array. Here, the median value may be a different concept from the average value.

[0116] If the three sensing values ​​stored in Area 1, Area 2, and Area 3 are all different, the remaining sensing value after excluding the largest and smallest values ​​among the three can be the median.

[0117] If the three sensing values ​​stored in Area 1, Area 2, and Area 3 are all the same, then any one of the three sensing values ​​can be the median.

[0118] If, among the three sensing values ​​stored in Area 1, Area 2, and Area 3 respectively, two sensing values ​​are identical and differ from the remaining one, then either of the two sensing values ​​can be the median.

[0119] The median can be determined by pitch angle and roll angle.

[0120] The reason the median is used instead of the mean is that when a large error is temporarily detected and stored in a region of the array, using the mean would inevitably reflect the error, whereas using the median allows the error to be prevented from being reflected.

[0121] Next, the control unit (180) can compare the median value with the reference angle [S511].

[0122] If the difference between the median value and the reference angle is outside the reference range, the control unit (180) can store the sensing time information, the reference angle, and the median value at step S505 as log information [S513]. If either the pitch angle or the roll angle of the median value is outside the reference pitch range or the reference roll range, the difference between the median value and the reference angle can be considered to be outside the reference range.

[0123] The control unit (180) can transmit the stored log information to an external device (400) via the network (300) as an email [S515]. Accordingly, the operator can recognize that an abnormality has occurred in the installation tilt of the display device (100) by receiving the email.

[0124] The control unit (180) can determine whether the current reference angle is an angle that is directly set by the user through the initial setting screen [S517].

[0125] If the current reference angle is not an angle directly set by the user through the initial setting screen, the control unit (180) can set and save the median value as the new reference angle [S517, S519]. The setting of the median value as the new reference angle can also be saved as log information.

[0126] The reason for setting the median value as the new reference angle here is that the user may have closed the initial setup screen without directly setting the reference angle and subsequently intentionally adjusted the installation tilt of the display device (100). In this case, if the median value is not set as the new reference angle, an email (or notification) informing the operator that an abnormality has occurred in the installation tilt may continue to be sent.

[0127] And, the control unit (180) can increase the index by +1 [S519, 521].

[0128] Meanwhile, if the current reference angle is the same as the angle directly set by the user through the initial setting screen, the control unit (180) can immediately increase the index by +1 without changing the reference angle [S517, 521].

[0129] Next, the control unit (180) can determine whether the area pointed to by the +1 increased index exists in the array [S523].

[0130] An index increased by +1 means that the index changes from (6-1) to (6-2) in Fig. 6, and the index changes from (6-2) to (6-3) in Fig. 6.

[0131] The control unit (180) can control the process to proceed to step S505 if the area pointed to by the +1 increased index exists in the array, and to proceed to step S503 if the area pointed to by the +1 increased index does not exist in the array.

[0132] Hereinafter, with reference to FIG. 7, an example of log information stored as described in FIG. 5 will be described. FIG. 7 is an example of log information that a display device according to one aspect of the present disclosure can provide in relation to an installation tilt abnormality.

[0133] As illustrated in FIG. 7, the control unit (180) can store the content as log information whenever an abnormality in the installation tilt is detected. The log information list (700) may include reference range change information (A) and information on the time of detection of an abnormality in the installation tilt (B). The user can view or download the log information by accessing the web server (200) through an external device (400).

[0134] Hereinafter, with reference to FIG. 8, examples of information provided by the web server (200) in addition to log information will be described. FIG. 8 is an example of another information that a display device according to one aspect of the present disclosure may provide in relation to an installation tilt.

[0135] As illustrated in (8-1) of FIG. 8, the web server (200) can provide information regarding a reference angle for an external device (400) that connects to it.

[0136] As illustrated in (8-2) of FIG. 8, the web server (200) can send an email notifying the occurrence of a specific event to an email address previously stored in the display device (100) when a specific event occurs.

[0137] The above-described disclosure can be implemented as computer-readable code on a medium on which a program is recorded. Computer-readable media include all types of recording devices in which data that can be read by a computer system is stored. Examples of computer-readable media include HDD (Hard Disk Drive), SSD (Solid State Disk), SSD (Silicon Disk Drive), ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical data storage device, etc. Explanation of the symbols

[0138] 100: Display device 200: Web server 300: Network 400: External device

Claims

Claim 1 A display device comprising a display, a sensing unit, a communication unit, and a control unit, wherein the control unit periodically acquires a sensing value regarding the installation tilt of the display device through the sensing unit, and when the difference between the sensing value and a reference angle is greater than or equal to a reference range, controls the transmission of a notification indicating that there is an abnormality in the installation tilt to a preset external device through the communication unit. Claim 2 A display device according to claim 1, wherein the control unit controls the reference angle and the reference range to be set by the user through an initial setting screen. Claim 3 A display device according to claim 2, wherein the control unit sets the installation tilt of the display device sensed through the sensing unit as the reference angle and the default value as the reference range immediately after the termination of the initial setting screen when the reference angle and the reference range are not set by the user through the initial setting screen. Claim 4 A display device according to claim 1, wherein the control unit defines a storage array for sequentially storing sensing values ​​periodically acquired through the sensing unit, and the array includes a plurality of regions. Claim 5 A display device according to claim 4, wherein the control unit compares the median value among the sensing values ​​stored in a plurality of areas of the array with the reference angle, and if the difference between the median value and the reference angle is greater than or equal to the reference range, controls the transmission of a notification indicating that there is an abnormality in the installation tilt to the external device through the communication unit. Claim 6 A display device according to claim 5, wherein the control unit stores the reference angle and the median value as log information when the difference between the median value and the reference angle is greater than or equal to the reference range. Claim 7 A display device according to claim 6, wherein the control unit controls the median value to be newly set to the reference angle when the difference between the median value and the reference angle is greater than or equal to the reference range and the reference angle is set by a user. Claim 8 A method for controlling a display device comprising: a step of periodically acquiring a sensing value regarding the installation tilt of the display device through a sensing unit; and a step of transmitting a notification indicating that there is an abnormality in the installation tilt to a preset external device through a communication unit when the difference between the sensing value and a reference angle is greater than or equal to a reference range.

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