Display device including electronic component and thermoelectric element for converting heat of electronic component into electrical energy and method thereof

Abstract

A display device may comprise: a display panel; a printed circuit board (PCB); heat-generating components including an electronic component which has various circuits mounted on the PCB, and configured to discharge heat on the basis of the driving of the display panel; a chassis disposed on one surface of the display panel and including a heat-dissipating portion, which is adjacent to the heat-generating components, and a support portion, which is configured to support the PCB; a thermoelectric element including at least one electrode, which is interposed between the heat-generating components and the heat-dissipating portion, and including a first surface in contact with the heat-generating components and a second surface in contact with the heat-dissipating portion; and a battery connected to the thermoelectric element. The thermoelectric element may be configured to charge the battery on the basis of the temperature difference between a first temperature of the first surface and a second temperature of the second surface, wherein the first temperature is related to the heat emitted from the heat-generating components, and the second temperature is lower than the first temperature due to the heat-dissipating portion.

Description

A display device including an electronic component and a thermoelectric element for converting heat of the electronic component into electrical energy, and a method therefor

[0001] The present disclosure relates to a display device including an electronic component and a thermoelectric element for converting heat of the electronic component into electrical energy, and a method thereof.

[0002] Display devices are becoming increasingly sophisticated thanks to advancements in electronic technology. To provide clear images, demand is growing for larger display devices. To support diverse functions, the number and complexity of electronic components within display devices are increasing.

[0003] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0004] According to an example embodiment, a display device may include a display panel, a printed circuit board (PCB), electronic components including various circuits coupled to the PCB, a heat generating component configured to emit heat based on driving of the display panel, a heat dissipating component disposed on one surface of the display panel and including a thermoelectric material adjacent to the heat generating component, and a chassis including a support portion configured to support the PCB, a thermoelectric element interposed between the heat generating component and the heat dissipating component, the thermoelectric element including a first surface in contact with the heat generating component and a second surface in contact with the heat dissipating component, the thermoelectric element including at least one electrode, and a battery connected to the thermoelectric element. The thermoelectric element may be configured to charge the battery based on a temperature difference between a first temperature of the first surface, which is related to the heat dissipated from the heat generating component, and a second temperature of the second surface, which is lower than the first temperature by the heat dissipating component.

[0005] In one embodiment, a display device may include a controller, a power circuit configured to obtain power for driving the display device from a power system external to the display device, an infrared (IR) sensor, a display panel, a thermoelectric element including at least one electrode configured to at least partially convert thermal energy of at least one of the controller or the power circuit into electrical energy, and a battery configured to store the electrical energy. The controller may be configured to receive a first input for stopping provision of an image through the display panel. The controller may be configured to deactivate the power circuit and the display panel based on the first input. The controller may be configured to activate the IR sensor using the electrical energy stored in the battery to detect, through the IR sensor, a second input for starting provision of an image through the display panel based on the deactivation.

[0006] In one embodiment, a method of controlling or operating a display device may be provided. The display device may include a power circuit configured to obtain power for driving the display device from a power system external to the display device, an infrared (IR) sensor, a display panel, a thermoelectric element configured to at least partially convert thermal energy of at least one of the power circuits into electrical energy, and a battery configured to store the electrical energy. The method may include receiving a first input for stopping provision of an image through the display panel. The method may include deactivating the power circuit and the display panel based on the first input. The method may include activating the IR sensor using the electrical energy stored in the battery to detect, through the IR sensor, a second input for starting provision of an image through the display panel based on the deactivation.

[0007] The above-described and other aspects, features, and advantages of some embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0008] FIG. 1 is a diagram illustrating an exemplary display device according to various embodiments;

[0009] FIG. 2 is a block diagram illustrating an exemplary display device according to various embodiments;

[0010] FIG. 3 is a cross-sectional view illustrating a plurality of thermoelectric elements included in a display device according to various embodiments;

[0011] FIG. 4 is an exploded perspective view of a display device according to various embodiments;

[0012] FIGS. 5A, 5B, and 5C are diagrams illustrating exemplary coupling relationships between a thermoelectric element and a heat-generating component included in a display device according to various embodiments;

[0013] FIGS. 6A, 6B, and 6C are diagrams illustrating exemplary coupling relationships between a coil assembly and a heat generating component included in a display device according to various embodiments;

[0014] FIGS. 7A, 7B, and 7C are diagrams illustrating exemplary positional relationships of a thermoelectric element and a battery included in a display device according to various embodiments.

[0015] Hereinafter, various embodiments of the present disclosure are described in more detail with reference to the attached drawings.

[0016] The various embodiments and terminology used in this document are not intended to limit the present disclosure to a specific embodiment, but should be understood to encompass various modifications, equivalents, and / or substitutes of the embodiment. In connection with the description of the drawings, similar reference numerals may be used for similar components. The singular expression may include plural expressions unless the context clearly indicates otherwise. In this disclosure, expressions such as “A or B,” “at least one of A and / or B,” “A, B, or C,” or “at least one of A, B, and / or C” can include all possible combinations of the items listed together. Expressions such as “first,” “second,” “first,” or “second” can modify the corresponding components regardless of order or importance, and are only used to distinguish one component from another, but do not limit the corresponding components. When it is said that a component (e.g., a first component) is “(functionally or communicatively) connected” or “connected” to another component (e.g., a second component), said component may be directly connected to said other component, or may be connected via another component (e.g., a third component).

[0017] The term "module" as used herein includes a unit composed of hardware, and may be used interchangeably with terms such as component, circuit, etc. A module may be an integrally composed component, or a minimum unit or part thereof that performs one or more functions. For example, a module may be composed of an application-specific integrated circuit (ASIC).

[0018] Within this disclosure, when expressions of a positional relationship between one element and another (e.g., “on,” “at the top,” “below,” “at the bottom,” “next to”) are mentioned, it should be understood that unless expressions such as “rightly” or “directly” are used, there may be one or more intervening elements between the two elements, and it should be noted that this does not limit the placement relationship between the two elements.

[0019] For example, when an element is referred to as being "on" another element, it can include that in addition to the element being attached to, integrally joined to, or inseparably formed with, the two elements may have one or more intermediate elements between them. For example, in this disclosure, "B disposed on A" can refer to "B disposed over A." For example, in this disclosure, "B disposed on A" can refer to "B facing A and spaced apart from A." For example, "a first planar portion disposed on the first housing part" can refer to "a first planar portion that contacts the first housing part." For example, "a first planar portion disposed on the first housing part" can refer to "a first planar portion facing the first housing part and spaced apart from the first housing part."

[0020] For example, in the present disclosure, "B on A" may refer to "B at least partially disposed on one surface of A." For example, in the present disclosure, "B on A" may refer to "B formed on A." For example, in the present disclosure, "B on A" may refer to, for example, "B having a portion formed on one surface of A and a remaining portion formed on the other surface of A opposite to said one surface." For example, "B on A" may refer to, for example, "B having a portion bonded to an outer surface of A and a remaining portion bonded to an interior of A."

[0021] FIG. 1 is a diagram illustrating a display device (101) according to various embodiments. The display device (101) may be described as an electronic device capable of displaying an image. For example, and not as a limitation, the display device (101) may include a television (TV), a monitor, a computer, a smartphone, a tablet, a portable media player, a wearable device, a video wall, an electronic picture frame, and the like. For convenience of explanation, the following description assumes that the display device (101) is implemented as a TV; however, the present disclosure is not limited thereto.

[0022] The display device (101) may be configured to operate by power (e.g., an alternating current (AC) power signal) provided from a power system (110). The display device (101) may include a plug (120) (or electrical cord) configured to be connected to a receptacle (or outlet, socket, receptacle) located at an end of the power system (110). The plug (120) may be connected to a component of the display device (101) (e.g., an AC-DC adapter (or electrical adapter)) for power conversion (e.g., from an AC power signal to a direct current (DC) power signal).

[0023] While the plug (120) is electrically connected to the power system (110), the display device (101) can execute a function for outputting images, sounds, or a combination thereof (e.g., multimedia content) based on the power of the power system (110). When the display device (101) receives information representing images and / or sounds, the display device (101) can execute the function using the information. The information representing images and / or sounds can be stored in the display device (101) or received from an external electronic device (e.g., a set-top box (STB) (130)) connected to the display device (101). The display device (101) can include an antenna configured to wirelessly receive the information, or can be electrically connected to the antenna. An exemplary hardware configuration included in the display device (101) for processing the information is described in more detail with reference to FIG. 2.

[0024] The state of the display device (101) while receiving power from the power system (110) through the plug (120) may include an inactive state (or power-off state, or power-down state, shutdown state, off state) and an active state (or power-on state, power-up state, standby state, idle state, active state). In the inactive state, the output of images and sounds by the display device (101) may be substantially stopped, minimized, and / or reduced. In the inactive state, the display device (101) may output a message (e.g., “press the power button”) guiding an input for switching to the active state. In the active state, the display device (101) may output images and / or sounds. The display device (101) may switch, or toggle, between the inactive state and the active state based on a user input.

[0025] The display device (101) may include hardware for receiving user input for controlling the display device (101), such as user input for switching between an inactive state and an active state. For example, the display device (101) may include a switch (or button) that is at least partially visible through the housing of the display device (101). For example, the display device (101) may include a touch sensor (e.g., a resistive touch sensor and / or a capacitive touch sensor) for detecting a touch input on at least a portion of the housing. The user input may include a direct action of the user with respect to the display device (101), such as pressing a switch and / or button, or touching a surface of the housing. The present disclosure is not limited thereto, and the user input may include an indirect action of the user with respect to the display device (101), such as based on a remote controller (109).

[0026] Referring to FIG. 1, the display device (101) may be configured to receive a wireless signal (or an optical signal) of a remote controller (109) based on infrared (IR). The embodiment is not limited thereto, and the remote controller (109) may be configured to transmit a wireless signal based on Bluetooth, BLE (Bluetooth low energy), NFC (near-field communication), UWB (ultra-wideband), WiFi (wireless fidelity), WiFi-direct, and / or other wireless short-range communication protocols, and the display device (101) may be configured to receive a wireless signal based on the exemplified wireless short-range communication protocols.

[0027] The power consumption of the display device (101) may depend on the state of the display device (101) (e.g., an inactive state and / or an active state). For example, in the inactive state, the circuitry of the display device (101) configured to output images and sounds may be at least partially deactivated because the output of images and sounds is stopped. By deactivating the circuitry, the power consumption of the display device (101) may be reduced.

[0028] The power consumption of the display device (101) in an inactive state may be referred to as standby power. The standby power of the display device (101) may be described as the power consumption of the display device (101) in an inactive state, as measured by the power system (110) (or plug (120)). The standby power within the inactive state may include the power consumption of the circuitry of the display device that is at least partially activated. Within the active state, the power consumption of the display device (101) may increase to a greater extent than the standby power because the circuitry that was deactivated in the inactive state is reactivated.

[0029] For example, within an inactive state, a circuit for receiving (or detecting) user input may be activated to receive user input for transitioning from the inactive state to the active state. For example, the circuit may be continuously activated, independently of the active or inactive state of the display device (101). The standby power of the display device (101) may include the power consumption of a circuit configured to receive user input (e.g., a circuit for receiving a wireless signal of a remote controller (109).

[0030] In one embodiment, a method may be desired to minimize and / or reduce standby power of a display device (101). To reduce, minimize, or eliminate standby power, the display device (101) may store or obtain power to be used in a state different from the inactive state (e.g., an active state). For example, the display device (101) may include components and / or hardware for storing heat generated by the display device (101) in the active state. For example, the display device (101) may include a component that generates electrical energy from energy other than electrical energy (e.g., thermal energy), referred to as an energy harvester. The energy harvester may include a piezoelectric component based on the piezoelectric effect, a magnetoelectric component based on the magnetoelectric effect, a piezoelectric component based on the photovoltaic effect, and / or a thermoelectric component based on the thermoelectric effect.

[0031] The present disclosure may relate to a display device (101) including a thermoelectric element configured to generate electrical energy from heat generated by a heat-generating component of the display device (101) (e.g., an electronic component of the display device (101) that is activated based on electrical energy). The coupling relationship of one or more thermoelectric elements included in the display device (101) is described in more detail with reference to FIG. 3 as a non-limiting example. A heat-generating component of the display device (101), which generates relatively large amounts of heat, is described and illustrated in more detail with reference to FIG. 4. The positional relationship between the heat-generating component and the thermoelectric element is described in more detail with reference to FIGS. 5A, 5B, 5C, 6A, 6B, and / or 6C.

[0032] In one embodiment, the display device (101) may include a battery (e.g., a rechargeable battery, referred to as a secondary battery) that is charged by electrical energy generated by the thermoelectric element. An exemplary circuit formed between the thermoelectric element and the battery is described in more detail with reference to FIG. 2 and / or FIGS. 7A, 7B, and 7C. In an active state, heat generated by the heat-generating component may be at least partially converted into electrical energy by the thermoelectric element. The converted electrical energy may be stored in the battery. For example, the battery may be charged in the active state. In an inactive state, the display device (101) may be operated at least temporarily by power from the battery.

[0033] In the inactive state, at least a portion of the circuitry of the display device (101) (e.g., circuitry for communicating with the remote controller (109)) is activated by power from the power system (110) provided through the plug (120) or the battery, so that the standby power of the display device (101) measured by the power system (110) can be substantially reduced to zero. Even though the standby power is reduced, the display device (101) can continue to receive wireless signals from the remote controller (109) using the power from the battery. For example, even after the standby power is reduced to zero, the display device (101) can receive wireless signals (e.g., IR signals) output from the remote controller (109) when a user presses a designated button (e.g., a power button) of the remote controller (109). In response to receiving the above wireless signal, the display device (101) can transition from an inactive state to an active state.

[0034] Hereinafter, with reference to FIG. 2, an exemplary hardware configuration of a display device (101) including a thermoelectric element is described in more detail.

[0035] FIG. 2 is a block diagram illustrating a configuration of a display device (101) according to various embodiments. The display device (101) of FIG. 2 may include the display device (101) of FIG. 1.

[0036] FIG. 2 is a block diagram illustrating portions of a circuit of a display device (101), illustrated as blocks. According to one embodiment, the display device (101) may include a power circuit (210), a light emitting diode (LED) driving circuit (220), a control circuit (230), an IR sensor (240), a microcontroller unit (MCU) (250) (e.g., including a control circuit), a battery (260), a charging circuit (270), a thermoelectric element (280), or any combination thereof. The portions of the circuits of the display device (101) illustrated as blocks may be electrically and / or operably connected by power lines and / or communication buses. The display device (101) may further include other circuits (e.g., a display panel, a speaker, and / or an ambient light sensor) that are different from the circuits illustrated in FIG. 2. The display device (101) may include only some of the circuits illustrated as blocks in FIG. 2.

[0037] Referring to FIG. 2, the power circuit (210) of the display device (101) may include a rectifier circuit (212), an AC-DC conversion circuit (214), and / or a DC-DC conversion circuit (216). Although not shown, the power circuit (210) may further include a lightning protection circuit, a varistor, a surge arrester, an electromagnetic interference (EMI) filter, a power factor conversion circuit, or any combination thereof.

[0038] The rectifier circuit (212) of the power circuit (210) can rectify an AC signal provided by the power system (110) and output a rectified AC signal. To rectify the AC signal, the rectifier circuit (212) can include a plurality of diodes forming a bridge circuit. Half-wave rectification or full-wave rectification based on the plurality of diodes can be performed by the rectifier circuit (212). The embodiment is not limited thereto, and the rectifier circuit (212) can be implemented in a non-bridge manner.

[0039] The AC-DC conversion circuit (214) of the power circuit (210) may be configured to output a DC signal from an AC signal rectified by a rectifier circuit (212). For example, the AC-DC conversion circuit (214) may include a capacitor that is charged by the rectified AC signal. The capacitor may be a circuit element that stores electrical energy based on an electric field. For example, the capacitor may include an electrolytic capacitor, a tantalum capacitor, a ceramic capacitor, and / or a film capacitor. The capacitor of the AC-DC conversion circuit (214) may be referred to as a bulk capacitor and / or a supercapacitor. When the capacitor is charged by the rectified AC signal, the voltage between the two terminals of the capacitor may be smoothed.

[0040] The power circuit (210) may include a DC-DC conversion circuit (216) configured to output a plurality of DC signals from a DC signal output from an AC-DC conversion circuit (214). The plurality of DC signals may each have different voltages required for driving electronic components (e.g., a load circuit) included in the display device (101). The DC-DC conversion circuit (216) may include an inverter circuit configured to output an AC signal from the DC signal output from the AC-DC conversion circuit (214), and a plurality of inductors (e.g., coils and an assembly of the coils) configured to receive the AC signal of the inverter circuit. The plurality of inductors may include a primary coil receiving the AC signal of the inverter circuit, and a secondary coil inductively coupled with the primary coil. A rectifier circuit and a capacitor connected to the secondary coil can be configured to output a direct current signal required for driving electronic components connected to the secondary coil from an alternating current signal generated in the secondary coil.

[0041] Referring to FIG. 2, exemplary electronic components (e.g., an LED driving circuit (220) and / or a control circuit (230)) of a display device (101) configured to receive direct current signals output from a DC-DC conversion circuit (216) are illustrated. The LED driving circuit (220) may include a circuit for driving a light source of the display device (101), referred to as a backlight. The LED driving circuit (220) may maintain or change the brightness (or luminance) of a plurality of LEDs included in the display device (101) (e.g., LEDs included in a backlight component). For example, the LED driving circuit (220) may generate or change voltages and / or currents applied to each of the plurality of LEDs. The voltages and / or currents may be determined by the control circuit (230).

[0042] Although not shown, the DC-DC converter circuit (216) may be electrically connected to a component (e.g., a display panel) of a display device (101) configured to output an image. The display panel may include a liquid crystal display (LCD), a plasma display panel (PDP), and a plurality of LEDs. The LEDs of the display panel may include organic LEDs (OLEDs). In one embodiment, the display panel may include electronic paper. If the display panel has a flat shape, the display panel may be referred to as a flat panel display (FPD). If the display panel has a curved shape, the display panel may be referred to as a curved display. If the display panel has a deformable shape, the display panel may be referred to as a bendable display, a flexible display, and / or a rollable display.

[0043] Although not shown, the DC-DC converter circuit (216) may be electrically connected to one or more speakers configured to output audio. The one or more speakers may be configured to output an audio signal (e.g., an audio signal synchronized with an image to be displayed through the display panel). The control circuit (230) included in the display device (101) may substantially simultaneously control the display panel and one or more speakers to simultaneously output an image and a sound associated with the image.

[0044] Referring to FIG. 2, a display device (101) according to one embodiment may include a control circuit (230) for driving other electronic components of the display device (101), such as a display panel and / or one or more speakers. The control circuit (230) may be configured to provide a direct current signal of a specified voltage (e.g., 13 V) to other electronic components (e.g., an IR sensor (240)). The control circuit (230) may acquire or process information input to the display device (101) (e.g., information received from the set-top box (130) of FIG. 1). The control circuit (230) may use the information to control the display panel to output an image through the display panel. The control circuit (230) may use the information to control one or more speakers to output a sound through the speakers. In the present disclosure, the control circuit (230) may be referred to as a main circuit, a main board, and / or a main circuit.

[0045] In one embodiment, the control circuit (230) may be electrically connected to an electronic component for acquiring user input. The electronic component for acquiring user input may include a switch at least partially exposed through the housing of the display device (101). The electronic component for acquiring user input may include a touch sensor for detecting a touch input on at least a portion of the housing of the display device (101).

[0046] Referring to FIG. 2, an IR sensor (240) is illustrated as an example of an electronic component for acquiring a user input. The IR sensor (240) may be configured to output an electrical signal representing the intensity of an optical signal in response to receiving and / or detecting an optical signal having a wavelength within the infrared ray. The control circuit (230) may use the electrical signal output from the IR sensor (240) to acquire or identify information related to a user input detected by an external electronic device (e.g., the remote controller (109) of FIG. 1) that output the optical signal. Using the information, the control circuit (230) may control other electronic components of the display device (101) to execute a function related to the user input. To control other electronic components of the display device (101), the control circuit (230) may include a processor and / or a memory. The control circuit (230) may include a System-on-Chip (SoC). A processor may include various processing circuits and / or multiple processors. For example, as used herein, including in the claims, the term "processor" may include various processing circuits, including at least one processor, one or more of which may be configured to perform the various functions described herein, individually and / or collectively, in a distributed manner. As used herein, when "processor," "at least one processor," and "one or more processors" are described as being configured to perform multiple functions, these terms encompass, by way of non-limiting example, a situation where one processor performs some of the recited functions and other processor(s) perform the remainder of the recited functions, as well as a situation where one processor can perform all of the recited functions.Additionally, at least one processor may comprise a combination of processors that perform the various functions mentioned / disclosed, for example, in a distributed manner. At least one processor may execute program instructions to achieve or perform the various functions.

[0047] Within the active state, the control circuit (230) and / or the IR sensor (240) may be driven by power provided by the power circuit (210). The power of the power circuit (210) may be supplied to electronic components of the display device (101) to drive at least a portion of the electronic components included in the display device (101). The electronic components may emit heat when operated by the power. In terms of emitting heat, the electronic components may be referred to as heat-generating components. Within the display device (101), heat-generating components that emit relatively large amounts of heat may include, for example and without limitation, a coil assembly included in the power circuit (210), a backlight component controlled by the LED driving circuit (220), and / or a processor (and / or SoC) of the control circuit (230) configured to control the electronic components.

[0048] Referring to FIG. 2, according to one embodiment, a display device (101) may include a thermoelectric element (280) configured to at least partially convert heat (or thermal energy) emitted from a heat-generating component into electrical energy. The number of thermoelectric elements (280) included in the display device (101) may vary depending on the embodiment. In one embodiment where the display device (101) includes a plurality of thermoelectric elements, the plurality of thermoelectric elements may be coupled in series with each other. A potential difference and / or current between electrodes of the thermoelectric elements may be generated by a temperature difference between two opposite surfaces of the thermoelectric elements. When the thermoelectric elements are coupled in series, a power signal having a composite voltage may be generated by combining the potential differences of the thermoelectric elements. The thermoelectric element(s) will be described in more detail below.

[0049] Referring to FIG. 2, according to one embodiment, a display device (101) may include a charging circuit (270) coupled with a thermoelectric element (280). In one embodiment where the display device (101) includes a plurality of thermoelectric elements coupled in series with each other, the charging circuit (270) may receive a power signal having a composite voltage of voltages generated from the plurality of thermoelectric elements. Since the voltage of the thermoelectric element (280) and / or the flow of current generated by the thermoelectric element (280) are relatively small, the charging circuit (270) may output a voltage and / or current of an appropriate magnitude to charge the battery (260) from the voltage and / or the current. For example, the charging circuit (270) may be configured to control charging of the battery (260) based on the power generated by the thermoelectric element (280). Using the above power signal, the charging circuit (270) can determine or change the voltage and / or current to be transmitted to the battery (260) of the display device (101). For example, the charging circuit (270) can be configured to adjust the current input to the battery (260) in order to maintain power generation in the thermoelectric element (280).

[0050] Referring to FIG. 2, according to one embodiment, a display device (101) may include a battery (260) coupled with a charging circuit (270). The battery (260) may be a rechargeable battery by the charging circuit (270). The battery (260) may output electrical energy required to drive electronic components of the display device (101) from chemical energy. The battery (260) may include a battery cell, a battery module, or a battery pack. The battery (260) may be any one of a lithium ion battery (Li-ion), a lithium ion polymer battery (Li-ion polymer), a lead-acid battery, a nickel-cadmium battery (NiCd), and a nickel-metal hydride battery (NiMH).

[0051] The charging circuit (270) can determine the voltage and / or current of the power signal to be transmitted to the battery (260) based at least on the output current limit and / or output voltage limit of the thermoelectric element (280). For example, the charging circuit (270) can limit the current of the power signal to be transmitted to the battery (260) so that the current flow of the thermoelectric element (280) is not interrupted. In an active state, the battery (260) can be charged by heat generated from a heat generating component corresponding to the thermoelectric element (280).

[0052] In an active state, a heat generating component (or electronic component) of a display device (101) including a control circuit (230) can receive power provided by a power circuit (210). For example, a direct current signal output from the power circuit (210) can be transmitted to the control circuit (230) via a diode (232). The anode of the diode (232) can be connected to a DC-DC converter circuit (216), and the cathode of the diode (232) can be connected to the control circuit (230).

[0053] Within the active state, the control circuit (230), driven by power provided by the power circuit (210), can receive a user input to switch from the active state to the inactive state, using the IR sensor (240) (or a switch and / or button visible on the housing of the display device (101). In response to receiving the user input, the control circuit (230) can at least temporarily disable or turn off the power circuit (210), the LED drive circuit (220), the display panel, and / or one or more speakers. The user input can include an input to stop providing images through the display panel (or to stop providing sound through one or more speakers). Based on the user input, the control circuit (230) and / or the MCU (250) can disable the power circuit (210) and the display panel. For example, the control circuit (230) and / or the MCU (250) may control the power circuit (210) to initiate an electrical disconnection between the power system (110) and the display device (101). Based on a user input, the control circuit (230) and / or the MCU (250) may be configured to activate the IR sensor (240) using electrical energy stored in the battery (260) to detect, through the IR sensor (240), an input to initiate presentation of an image through the display panel.

[0054] For example, when switching from an active state to an inactive state, the MCU (250) and / or the control circuit (230) may deactivate the power circuit (210) and / or the display panel. Since the power circuit (210) is deactivated, the standby power of the display device (101) may be substantially reduced to zero. Since the power circuit (210) is deactivated, an electrical disconnection may occur between the power system (110) and the display device (101). The electrical disconnection may cause the display panel to be deactivated. The electrical disconnection may be established to reduce the standby power of the display device (101), which is measured by the power system (110), after switching from an active state to an inactive state.

[0055] When switching from an active state to an inactive state, the control circuit (250) (e.g., MCU) can activate a switch (234) for electrically connecting the battery (260) and the control circuit (230) (or the IR sensor (240)). The switch (234) can include a relay switch and / or a transistor. The transistor can include a bipolar junction transistor (BJT) and / or a field-effect transistor (FET) (e.g., an n-channel metal-oxide semiconductor FET (N-MOSFET) and / or a p-channel MOSFET (P-MOSFET)). By means of the switch (234), a direct current signal output from the battery (260) can be transmitted to the control circuit (230) and / or the IR sensor (240). For example, an electrical connection may be established between the battery (260) and at least a portion of the electronic components of the display device (101), such as the IR sensor (240), by means of the switch (234). In an inactive state in which the power circuit (210) is deactivated, the IR sensor (240) and / or the MCU (250) may be activated by power from the battery (260). When switching from the active state to the inactive state, the MCU (250) may control the control circuit (230) to stop outputting a DC signal (e.g., a DC signal having a voltage of 13 V). Instead of the DC signal output from the control circuit (230), the IR sensor (240) may receive power from the battery (260).

[0056] Referring to FIG. 2, in an inactive state where power from the battery (260) is provided to the control circuit (230), the IR sensor (240), and / or the control circuit (250) (e.g., an MCU), the electrical connection between the control circuit (230) and the power circuit (210) may be interrupted by the diode (232). In the inactive state, because the power circuit (210) is inactive, the potential of the power circuit (210) (e.g., the voltage at the anode of the diode (232)) may be lower than the potential of the control circuit (230) receiving power from the battery (260) (e.g., the voltage at the cathode of the diode (232)). Because the voltage at the anode of the diode (232) is lower than the voltage at the cathode of the diode (232), the diode (232) may be electrically isolated in the inactive state.

[0057] Referring to FIG. 2, the display device (101) can detect, within an inactive state, a user input for switching the display device (101) from the inactive state to the active state. To detect the user input, an IR sensor (240), a control circuit (230), and / or a control circuit (250) (e.g., an MCU) can be activated within the display device (101).

[0058] For example, upon receiving a signal representing the user input, the IR sensor (240) may notify the MCU (250) of the reception of the signal. Based on the notification from the IR sensor (240), the MCU (250) may switch the state of the display device (101) to an active state. When switching from the inactive state to the active state, the MCU (250) may control the power circuit (210) so that the power circuit (210) outputs one or more direct current signals. For example, the MCU (250) may control the power circuit (210) to start driving the electronic components of the display device (101), including the display panel, based on receiving the signal. After one or more direct current signals are output from the power circuit (210), the electronic components and / or heat generating components of the display device (101) may be activated by the power circuit (210). When switching from an inactive state to an active state, the MCU (250) can control the switch (234) to electrically disconnect the battery (260) from the electronic components of the display device (101) (e.g., the MCU (250) and / or the IR sensor (240)).

[0059] While one embodiment of providing power to the IR sensor (240) using the battery (260) within the inactive state has been described, the present disclosure is not limited thereto. The MCU (250) may measure the state of charge (SOC) and / or the battery cycle of the battery (260). While providing power from the battery (260) to the IR sensor (240) (e.g., during the inactive state), the MCU (250) may control the power circuit (210), the switch (234), and / or the control circuit (230) to obtain power for driving the IR sensor (240) from the power circuit (210) when the SOC and / or voltage (e.g., open circuit voltage (OCV)) of the battery (260) decreases below a specified SOC and / or a specified voltage.

[0060] As described above, according to one embodiment, the MCU (250) and / or the control circuit (230) of the display device (101) may control the power circuit (210) to reduce the standby power of the display device (101) measured in the power system (110). For example, in response to an input to switch the display device (101) to an inactive state, the MCU (250) and / or the control circuit (230) may control the power circuit (210) to reduce the standby power. Within the inactive state, a communication circuit (e.g., an IR sensor (240) and / or a communication circuit based on a wireless communication protocol such as Bluetooth) to an external electronic device may be activated to support control of the display device (101) by an external electronic device, such as the remote controller (109) illustrated in FIG. 1. The above communication circuit and the controller (e.g., MCU (250)) connected to the communication circuit can be activated by a battery (260) charged in an active state.

[0061] Since the battery (260) is charged based on the thermoelectric element (280), additional circuitry for charging the battery (260) using an AC signal received from the power system (110) may not be included in the display device (101). For example, the display device (101) may be produced or implemented without a circuit for converting the AC signal into a DC signal or for charging the battery (260) using the converted DC signal. For example, since the display device (101) is implemented without an additional rectifier circuit, transformer, and / or protection circuit (e.g., a circuit for protecting the battery (260) from lightning strike) for charging the battery (260), the display device (101) may be implemented with relatively fewer additional electronic circuits (e.g., the battery (260), the charging circuit (270), and / or the thermoelectric element (280)) while having reduced standby power.

[0062] Hereinafter, with reference to FIG. 3, the thermoelectric element (280) included in the display device (101) for charging the battery (260) is described in more detail.

[0063] FIG. 3 is a diagram including a cross-sectional view illustrating a plurality of thermoelectric elements (e.g., thermoelectric elements (280) of FIG. 2) included in a display device (e.g., display device (101) of FIGS. 1-2) according to various embodiments. Referring to FIG. 3, an array of thermoelectric elements is illustrated, including a thermoelectric element (330). For example, and not as a limitation, the array of thermoelectric elements may have a linear shape along the longitudinal direction of the heat-generating component. For example, the array of thermoelectric elements may have a planar shape on one surface of the heat-generating component.

[0064] Referring to FIG. 3, the thermoelectric element (330) may include a first electrode (341), a second electrode (342), a third electrode (343), an n-type semiconductor (350), and a p-type semiconductor (360). A first surface of the n-type semiconductor (350) may be in contact with a first portion of the first electrode (341). A second surface of the n-type semiconductor (350), which is opposite to the first surface, may be in contact with a second electrode (342). A first surface of the p-type semiconductor (360) may be in contact with (e.g., be in contact with) a second portion of the first electrode (341) (e.g., a second portion that is spaced apart from the first portion of the first electrode (341) to which the n-type semiconductor (350) is in contact and is positioned on the same side as the first portion). A second surface of the p-type semiconductor (360), which is opposite to the first surface of the p-type semiconductor (360), may be in contact with a third electrode (343). The first electrode (341), the second electrode (342), and the third electrode (343) may include a conductive material, such as a metal (e.g., copper).

[0065] For example, an n-type semiconductor (350) is a semiconductor doped with a group 5 element (e.g., (P), arsenic (As), and / or antimony (Sb)), and free electrons can move within the n-type semiconductor (350). For example, a p-type semiconductor (360) is a semiconductor doped with a group 3 element (e.g., boron (B) and / or aluminum (Al)), and the movement of electrons within the p-type semiconductor (360) can be explained based on the movement of positive holes (or positive holes). The temperature distribution of the n-type semiconductor (350) and the p-type semiconductor (360) can cause the movement of free electrons and positive holes in each of the n-type semiconductor (350) and the p-type semiconductor (360).

[0066] For example, within a p-type semiconductor (360), positive holes may move from a relatively high temperature portion of the p-type semiconductor (360) to another relatively low temperature portion. For example, within an n-type semiconductor (350), electrons may move from a relatively high temperature portion of the n-type semiconductor (350) to another relatively low temperature portion. Referring to FIG. 3, in a case where the temperature of the first electrode (341) is higher than the temperatures of the second electrode (342) and the third electrode (343), positive holes of the p-type semiconductor (360) may move toward the third electrode (343), and free electrons of the n-type semiconductor (350) may move toward the second electrode (342). In the above case, a portion of the p-type semiconductor (360) adjacent to the first electrode (341) may become negatively charged, and another portion of the p-type semiconductor (360) adjacent to the third electrode (343) may become positively charged. In the above case, a portion of the n-type semiconductor (350) adjacent to the first electrode (341) may be positively charged, and another portion of the n-type semiconductor (350) adjacent to the second electrode (342) may be negatively charged. The phenomenon of the p-type semiconductor (360) and the n-type semiconductor (350) being charged can be explained by the Seebeck effect.

[0067] In a case where the temperature of the first electrode (341) is higher than that of the second electrode (342) and the third electrode (343), potential differences based on the distributions of free electrons and holes may be generated in each of the n-type semiconductor (350) and the p-type semiconductor (360). For example, since the free electrons of the n-type semiconductor (350) move toward the second electrode (342), the potential of the second electrode (342) may decrease below the potential of the first electrode (341). For example, since the holes of the p-type semiconductor (360) move toward the third electrode (343), the potential of the third electrode (343) may increase above the potential of the first electrode (341). Because a potential difference is generated, a current may flow between the third electrode (343) and the second electrode (342). Based on the movement of free electrons and holes, heat can be transferred in the thermoelectric element (330). For example, heat from the first electrode (341) can be transferred to the second electrode (342) and / or the third electrode (343) along the n-type semiconductor (350) and / or the p-type semiconductor (360).

[0068] Referring to FIG. 3, a thermoelectric element (330) can be connected to a p-type semiconductor of another thermoelectric element through a second electrode (342), and can be connected to an n-type semiconductor of another thermoelectric element through a third electrode (343). Within a plurality of thermoelectric elements including the thermoelectric element (330), n-type semiconductors and p-type semiconductors can be arranged to be alternately connected. When a plurality of n-type semiconductors and p-type semiconductors of the thermoelectric element (330) are alternately connected, current can flow from a first n-type semiconductor to a first p-type semiconductor, from the first p-type semiconductor to a second n-type semiconductor, and again from the second n-type semiconductor to the second p-type semiconductor. For example, an n-type semiconductor can be positioned next to a p-type semiconductor. For example, an n-type semiconductor can be positioned between p-type semiconductors. When a plurality of thermoelectric elements are connected, a power signal having a combination of potential differences of the plurality of thermoelectric elements can be output.

[0069] As described above, within the thermoelectric element (330), a flow of current and / or a movement of heat may occur based on a temperature difference between the two terminals of the n-type semiconductor (350) (or the p-type semiconductor (360)). According to one embodiment, within the display device, the thermoelectric element (330) may be arranged such that the two terminals of the semiconductor (e.g., the n-type semiconductor (350) and / or the p-type semiconductor (360)) included in the thermoelectric element (330) have a temperature difference. The temperature difference may be generated by heat emitted from a heat-generating component of the display device.

[0070] Referring to FIG. 3, the thermoelectric element (330) may include a first plate (321). The thermoelectric element (330) and a plurality of thermoelectric elements including the thermoelectric element (330) may be in contact with the first plate (321). The first electrode (341) of the thermoelectric element (330) may be in contact with the first plate (321). A surface (311) opposite to one surface of the first plate (321) to which the first electrode (341) is in contact may be in contact with, or may be attached to, a heat-generating component of the display device.

[0071] Referring to FIG. 3, the thermoelectric element (330) may include a second plate (322). The thermoelectric element (330) and a plurality of thermoelectric elements including the thermoelectric element (330) may be in contact with the second plate (322). The second electrode (342) and the third electrode (343) of the thermoelectric element (330) may be in contact with, or attached to, the second plate (322). A surface (312) opposite to one surface of the second plate (322) to which the second electrode (342) and / or the third electrode (343) is in contact may be in contact with, or attached to, a heat dissipation component of the display device. Since the surface (311) of the thermoelectric element (330) is in contact with the heat generating component, and the surface (312) opposite to the surface (311) is in contact with the heat dissipating component, heat of the heat generating component can be transferred to the heat dissipating component through the thermoelectric element (330). The transfer of heat can cause the generation of electromotive force based on the temperature difference between the surfaces (311, 312).

[0072] Referring to FIG. 3, the thermoelectric element (330) may be interposed or positioned between the first plate (321) and the second plate (322). Through the surface (311) of the first plate (321), the thermoelectric element (330) may be in contact with the heat-generating component. Through the surface (312) of the second plate (322), the thermoelectric element (330) may be in contact with the heat-radiating component. The n-type semiconductor (350) may extend from the other surface of the first plate (321) opposite to the surface (311) of the first plate (321) attached to the heat-generating component toward the surface (312) of the second plate (322). The p-type semiconductor (360) may extend from one side of the first plate (321) toward one side (312) of the second plate (322) from another side, spaced apart from the part to which the n-type semiconductor (350) is attached. The present disclosure is not limited thereto, and a heat generating component may be attached to a thermoelectric element (330) through the side (312) of the second plate (322), and a heat dissipating component may be attached to a thermoelectric element (330) through the side (311) of the first plate (321).

[0073] As described above, the thermoelectric element (330) may be configured to generate power based on a temperature difference generated within the display device. Thermoelectric elements including the thermoelectric element (330) may be connected in series. Power may be generated more efficiently based on the series connection of the thermoelectric elements. To maintain or create a temperature difference, a heat generating component, a thermoelectric element (330), and a heat dissipating component may be sequentially connected within the display device. The heat dissipating component may be configured to dissipate heat transferred from the thermoelectric element (330) to the outside of the heat dissipating component. The heat dissipating component may include a chassis (e.g., a bottom chassis), a frame, and / or a housing of the display device.

[0074] As described above, the thermoelectric element (330) of the display device can generate power based on a temperature difference between a first temperature of the surface (311), which is based on heat emitted from the heat-generating component, and a second temperature of the surface (312), which is lower than the first temperature by the heat-dissipating component. When the thermoelectric element (330) is electrically coupled to a battery (e.g., battery (260) of FIG. 2), the thermoelectric element (330) can be configured to charge the battery. The present disclosure is not limited thereto, and when the surface (311) is attached to the heat-dissipating component and the surface (312) is attached to the heat-generating component, the temperature of the surface (311) can be lower than the temperature of the surface (312). The thermoelectric element (330) can generate power based on the temperature difference between the surfaces (311, 312). The battery can be charged by the generated power.

[0075] Hereinafter, with reference to FIG. 4, an exemplary structure of a display device including a thermoelectric element (330), a heat generating component, and a heat dissipating component is illustrated and described in more detail.

[0076] FIG. 4 is an exploded perspective view of a display device (101) according to various embodiments. A non-limiting exemplary structure of the display device (101) of FIG. 1 and / or FIG. 2 is described with reference to FIG. 4.

[0077] Referring to FIG. 4, the display device (101) may include a display panel (410). The front side (e.g., front side) of the display device (101) may be described as a side of the display device (101) from which the display panel (410) is visible. The rear side (e.g., rear side) of the display device (101) may be described as a side (or other side) of the display device (101) that is opposite to the front side of the display device (101).

[0078] The display device (101) may include a display panel (410) and a housing (420) that supports the display panel (410). The housing (420) may include a rear cover of the display device (101). The housing (420) may include an object (e.g., support legs and / or VESA (video electronics standards association) mount holes) for supporting the display device (101).

[0079] A chassis (417) may be positioned on one side of the display panel (410) facing the front of the display device (101) and the other side of the display panel (410) opposite to the other side. The chassis (417) may be referred to as a bottom chassis of the display panel (410). A printed circuit board (PCB) having one or more circuit elements (e.g., SoC) disposed thereon may be coupled to the chassis (417). Referring to FIG. 4, a first PCB having a power circuit (210) disposed thereon may be positioned on the chassis (417). In terms of including the power circuit (210), the first PCB may be referred to as a power board. Referring to FIG. 4, a second PCB having a control circuit (430) different from the power circuit (210) (e.g., the control circuit (230) of FIG. 2) disposed thereon may be positioned on the chassis (417). From the perspective of including the control circuit (430), the second PCB may be referred to as a control board, a main board, and / or a logic board.

[0080] Referring to FIG. 4, an exploded perspective view of a display panel (410) is illustrated. The display panel (410) may include a liquid crystal panel (411), a backlight component (or backlight unit, for example, a backlight module including a light-emitting circuit such as LEDs) that emits light (e.g., white light) to the liquid crystal panel (411), and a chassis assembly that supports the liquid crystal panel (411) and the backlight unit. The backlight component may include at least one of a light source component (440), a light guide plate (415) that generates a surface light source from light of the light source component (440), a reflective sheet (416) arranged facing one side of the light guide plate (415) opposite to the other side facing the liquid crystal panel (411), a quantum dot sheet (414) positioned between the liquid crystal panel (411) and the light guide plate (415) and configured to change the wavelength of light reflected from the light guide plate (415) (e.g., to enhance color reproducibility), and an optical sheet (412) positioned between the quantum dot sheet (414) and the liquid crystal panel (411) and configured to change the brightness, uniformity, and directivity of light.

[0081] Referring to FIG. 4, a light source component (440) may be positioned along one edge of the display panel (410) (e.g., a ground-type backlight component and / or an edge-type backlight component). The present disclosure is not limited thereto, and the light source component (440) may have the form of a surface light source on the rear surface of the display panel (410). The light source component (440) may include a plurality of LEDs and a PCB on which the plurality of LEDs are positioned.

[0082] A chassis assembly of a display panel may be configured to accommodate a liquid crystal panel (411) and a backlight component. The chassis assembly may include a middle mold (413) and a chassis (417). Although not shown, the chassis assembly may include a bezel component that is visible from the front of the display device (101). The chassis (417) may have a structure for accommodating PCBs including a power circuit (210) and a control circuit (430). Exemplary views of the chassis (417), the power circuit (210), and the control circuit (430) are described in more detail with reference to FIGS. 7A, 7B, and 7C. The chassis (417) may include aluminum, stainless steel (SUS), and / or stainless steel electrogalvanized cold-rolled steel (SECC), which have relatively high thermal conductivity.

[0083] A power circuit (210) and / or a control circuit (430) may be positioned on a chassis (417) configured to support a display panel (410). The chassis (417) may be disposed on one surface of the display panel (410) and may include a heat dissipation portion adjacent to a heat-generating component. The chassis (417) may include a support portion (e.g., a bracket) that supports a PCB (e.g., a first PCB on which the power circuit (210) is positioned and / or a second PCB on which the control circuit (430) is positioned). In one embodiment, heat from the heat-generating component included in the power circuit (210) and / or the control circuit (430) may be transferred to the chassis (417). Power may be generated from a thermoelectric element (e.g., a thermoelectric element (280) of FIG. 2) positioned (or interposed) between the heat-generating component and the chassis (417). For example, the control circuit (430) may include a heat generating component (e.g., SoC) coupled to the second PCB on which the control circuit (430) is positioned and configured to dissipate heat based on the driving of the display panel (410).

[0084] For example, the heat generating component may include a power circuit (210) configured to obtain power for driving the display device (101) from a power system external to the display device (101) (e.g., power system (110) of FIG. 1). The display panel (410) may be driven by the power obtained by the power circuit (210). The thermoelectric element may include a first surface (e.g., surface (311) of FIG. 3) formed on at least a portion of the power circuit (210) and attached to one side thereof, and a second surface (e.g., surface (312) of FIG. 3) opposite the first surface and attached to the chassis (417). The thermoelectric element may be configured to at least partially convert thermal energy of at least one of the power circuit (210) and / or the control circuit (430) into electrical energy. The above electric energy can be stored in a battery of the display device (101) (e.g., battery (260) of FIG. 2).

[0085] For example, the heat generating component may include backlight LEDs configured to emit light toward the display panel (410) (or the liquid crystal panel (411)). The backlight LEDs may be included in the light source component (440). A first side of the thermoelectric element may be at least partially attached to the backlight LEDs arranged along the longitudinal direction of the display panel (410). A second side of the thermoelectric element, opposite the first side, may be attached to the chassis (417).

[0086] As described above with reference to FIGS. 1, 2, and 3, the display device (101) may include electronic components (e.g., the IR sensor (240) of FIG. 2 and / or the MCU (250)) configured to be at least partially driven by power charged in a battery (e.g., the battery (260) of FIG. 2) based on an electrical disconnection between the power system and the display device (101). The electronic components may include an IR sensor (e.g., the IR sensor (240) of FIG. 2). The electronic components may include a controller (e.g., the MCU (250) of FIG. 2 and / or the control circuit (230)) configured to control the IR sensor.

[0087] As described above, the chassis (417), which is widely formed on the rear surface of the display panel (410), can be described as a heat dissipation component for receiving heat from the heat-generating component. Since the chassis (417) has a relatively large area, heat transmitted to the chassis (417) can be spread on the chassis (417). A thermoelectric element can be positioned between the heat-generating component and the heat-dissipating component. Based on the temperature difference between the heat-generating component and the heat-dissipating component, the thermoelectric element can output power.

[0088] Hereinafter, various exemplary positional relationships between the heat generating component, the heat dissipating component, and the thermoelectric element are illustrated in more detail with reference to FIGS. 5a, 5b, and 5c.

[0089] FIGS. 5A, 5B, and 5C are diagrams illustrating exemplary coupling relationships between a thermoelectric element (280) and a heat generating component included in a display device according to various embodiments. The display device (101) of FIGS. 1, 2, 3, and 4 may include a thermoelectric element (280) and a heat generating component having coupling relationships illustrated in FIGS. 5A, 5B, and 5C (which may be referred to as FIGS. 5A to 5C).

[0090] Referring to FIGS. 5A to 5C , exemplary structures of a PCB (520) and a chassis (510) are illustrated. The chassis (510) of FIGS. 5A to 5C may include the chassis (417) of FIG. 4 . The chassis (510) may include a bracket for fixing the PCB (520). The chassis (510) and the heat-generating component may be (indirectly) connected to, or (at least partially) in contact with, a heat transfer material such as a thermoelectric element (280).

[0091] Referring to FIG. 5A, electronic components (530) are illustrated as examples of heat-generating components arranged on a PCB (520). Examples of the electronic components (530) include a first electronic component (531), a second electronic component (532), and a third electronic component (533), but the present disclosure is not limited thereto. The electronic components (530) may be included in a power circuit of a display device (e.g., a power circuit (210) of FIG. 2).

[0092] Referring to FIG. 5A, the thermoelectric element (280) may include a first side attached to the electronic components (530) and a second side attached to the chassis (510). In one embodiment where the electronic components (530) are included in a power circuit, the first side of the thermoelectric element (280) may be attached to at least a portion of the power circuit. The thermoelectric element (280) may be configured to generate power based on a temperature difference between the first side and the second side. The dimensions (e.g., width, height, and / or thickness) of the thermoelectric element (280) may be set to at least partially occupy (or fill) the space between the electronic components (530) and the chassis (510). The thermoelectric element (280) may be positioned in the space without an additional insulator (e.g., an aluminum oxide (Al2O3) insulator). For example, the display device may be designed without an insulator, or the insulator of the display device may be replaced by a thermoelectric element (280).

[0093] Referring to FIG. 5A, a through hole may be formed on the PCB (520) to directly connect the thermoelectric element (280) and the electronic components (530). For example, the PCB (520) may include a through hole that at least partially overlaps a heat-generating component (e.g., electronic components (530)) disposed on the PCB (520). A first surface of the thermoelectric element (280) may be brought into contact with the heat-generating component through the through hole of the PCB (520). Referring to FIG. 5A, the through hole of the PCB (520) may be filled by contact between the thermoelectric element (280) and the heat-generating component.

[0094] As described above with reference to FIG. 5A, since the heat generated from the electronic components (530) moves to the chassis (510) through the thermoelectric element (280), the display device can be designed or manufactured without additional components (e.g., heat sinks and / or insulators) for dissipating the heat of the electronic components (530). The present disclosure is not limited thereto, and since the heat generated from the electronic components (530) moves to the chassis (510) through the thermoelectric element (280), the display device can be configured to include a heat sink having a reduced size.

[0095] Referring to FIG. 5A, electronic components (530) may be dispersed on one side of a thermoelectric element (280). Referring to FIG. 5A, a first thermal image (591) of one side of a thermoelectric element (280) to which the electronic components (530) are in contact is illustrated. A portion (593) of the first thermal image (591) may correspond to one side of the thermoelectric element (280) to which the electronic components (530) are in contact. Referring to the first thermal image (591), within the portion (593), a temperature of a portion that overlaps with the electronic components (530) and / or is adjacent to the electronic components (530) may be higher than a temperature of the remaining portion. Referring to FIG. 5b, in order to uniformly transfer heat to one side of the thermoelectric element (280), a metal plate (540) may be positioned between the thermoelectric element (280) and a heat-generating component (e.g., electronic components (530)). For example, referring to FIG. 5b, the PCB (520) may include a first portion on which the heat-generating component (e.g., electronic components (530)) is mounted, and a second portion surrounding the first portion. The first portion may include the metal plate (540).

[0096] The metal plate (540) may be referred to as a metal PCB (or metal). The heat of the electronic components (530) may be spread on the metal plate (540). When the heat is uniformly received through the metal plate (540), the thermoelectric element (280) may generate or output power more efficiently. Referring to FIG. 5B, a second thermal image (592) is shown for one surface of the thermoelectric element (280) to which the electronic components (530) are in contact. A portion (594) of the second thermal image (592) may correspond to one surface of the thermoelectric element (280) to which the electronic components (530) are in contact. Referring to the second thermal image (592), within the portion (594), the difference between the temperature of the portion where the electronic components (530) are placed and the temperature of the remaining portion may be reduced. For example, the deviation within a portion (594) of the second thermal image (592) of FIG. 5B may be smaller than the deviation within a portion (593) of the first thermal image (591) of FIG. 5A. As the deviation is smaller, the magnitude of the current generated from the thermoelectric element (280) may increase. For example, as the temperature deviation on one surface of the thermoelectric element (280) is reduced by using the metal plate (540), the temperature of the electronic components (530) may be reduced, and the magnitude of the current generated from the thermoelectric element (280) may also increase.

[0097] Referring to FIG. 5c, a heat generating component disposed on a PCB (520) may include an SoC (550). The SoC (550) may be included in a circuit for driving a display panel, such as the control circuit (430) of FIG. 4 and the control circuit (230) of FIG. 2. The display device may include a heat sink (560) for dissipating heat of the SoC (550). The heat sink (560) may be attached to or connected to a heat dissipating component of the display device (e.g., the chassis (510) and / or housing). For example, one end of the heat sink (560) may be in contact with or connected to another surface of the thermoelectric element (280) opposite to one surface of the thermoelectric element (280) (e.g., one surface of the thermoelectric element (280) in contact with one surface of the SoC (550). For example, a different end of the heat sink (560) may be in contact with or connected to a heat dissipating component of the display device, such as a chassis and / or housing.

[0098] Referring to FIG. 5C, a thermoelectric element (280) may be interposed between the SoC (550) and the heat sink (560). For example, an active SoC (550) may emit heat when controlling a display panel to output an image and / or controlling one or more speakers to output sound. The heat may move from one side of the thermoelectric element (280) to the other side of the thermoelectric element (280). The heat moved to the other side of the thermoelectric element (280) may be transferred to the heat sink (560). When heat moves from one side of the thermoelectric element (280) to the other side of the thermoelectric element (280), a flow of current (e.g., movement of electrons) may be generated within the thermoelectric element (280). The current generated by the thermoelectric element (280) may flow to a battery connected to both terminals of the thermoelectric element (280). For example, the battery can be charged by current generated by the thermoelectric element (280).

[0099] FIGS. 6A, 6B, and 6C are diagrams illustrating exemplary coupling relationships between a coil assembly and a heat generating component included in a display device according to various embodiments. The display device (101) of FIGS. 1 to 4 may include the hardware illustrated in FIGS. 6A, 6B, and / or 6C.

[0100] FIG. 6A is an exemplary circuit diagram for a power circuit (210), an LED driving circuit (220), and a control circuit (230) of FIG. 2. The power circuit (210) may include a rectifier circuit (212) for rectifying an AC signal of the power system (110), and an AC-DC converter circuit (214) for generating a DC signal from the AC signal rectified by the rectifier circuit (212). Referring to FIG. 6A, a power factor corrector (PFC) may be connected to the AC-DC converter circuit (214) or may be included as at least a portion of the AC-DC converter circuit (214). Referring to FIG. 6A, the power circuit (210) may include a DC-DC converter circuit (216) for outputting DC signals having different voltages required for driving different electronic components of a display device from the DC signal of the AC-DC converter circuit (214).

[0101] Referring to FIG. 6A, the DC-DC converter circuit (216) may include a circuit for converting a DC signal of the AC-DC converter circuit (214) into an AC signal. The circuit may include, for example, a resonator (or resonant circuit) based on an inductor-inductor-capacitor (LLC). The DC-DC converter circuit (216) may include a primary coil for receiving an AC signal converted from the DC signal of the AC-DC converter circuit (214), and one or more secondary coils inductively coupled with the primary coil. Referring to FIG. 6A, a portion (610) of the DC-DC converter circuit (216) is illustrated, which is a combination of a primary coil and a plurality of secondary coils. Although two secondary coils are illustrated inductively coupled with the primary coil, the present disclosure is not limited thereto. Each of the secondary coils of the section (610) can be connected to an AC-DC conversion circuit (e.g., a smoothing circuit based on a capacitor). A DC signal for driving a corresponding electronic component (e.g., an LED driving circuit (220), a display panel (410), and / or a control circuit (230)) can be output from the AC-DC conversion circuit connected to the secondary coil.

[0102] Referring to FIG. 6A, examples of coil assemblies (e.g., a first coil assembly (621) and / or a second coil assembly (622)) in which primary coils and secondary coils included in a portion (610) are interlocked with each other are illustrated. The coil assembly may be referred to as a transformer. Within the coil assembly, the primary coils and secondary coils may be electrically insulated. FIG. 6B illustrates the first coil assembly (621) of FIG. 6A and a first thermoelectric element (280-1) in contact with one surface of the first coil assembly (621). FIG. 6C illustrates the second coil assembly (622) and a second thermoelectric element (280-2) in contact with one surface of the second coil assembly (622).

[0103] Referring to FIG. 6B, a first coil assembly (621) disposed on a PCB (630) is illustrated. Within the first coil assembly (621), a plurality of coils (e.g., coils included in portion (610) of FIG. 6A) may be mutually coupled. A ferrite core associated with the mutual coupling of the plurality of coils may be included within the first coil assembly (621). The PCB (630) on which the first coil assembly (621) is disposed may include a through hole at least partially overlapping the first coil assembly (621). Through the through hole, one surface of the first coil assembly (621) and one surface of the first thermoelectric element (280-1) may be brought into contact with each other.

[0104] Referring to FIG. 6C, the second coil assembly (622) may include circuit elements (641, 642), such as FETs and / or diodes. The circuit elements (641, 642) may be disposed on one surface of the second coil assembly (622). Within the second coil assembly (622), a plurality of coils may be coupled to each other. The second coil assembly (622) may further include at least one core positioned between the plurality of coils. The second coil assembly (622) may be disposed on a PCB (630). The PCB (630) may include a through hole that at least partially overlaps one surface of the second coil assembly (622) (e.g., one surface of the second coil assembly (622) on which the circuit elements (641, 642) are positioned). Through the through hole, one side of the second coil assembly (622) and one side of the second thermoelectric element (280-2) can be brought into contact with each other.

[0105] Referring to FIG. 6b and / or FIG. 6c, heat generated from the first coil assembly (621) and the second coil assembly (622) can be transmitted to the first thermoelectric element (280-1) and the second thermoelectric element (280-2), respectively. Based on the heat transmitted from the first coil assembly (621) and the second coil assembly (622), respectively, power can be generated from the first thermoelectric element (280-1) and the second thermoelectric element (280-2), respectively. The power can be charged by a battery (e.g., battery (260) of FIG. 2). As described above, thermoelectric elements such as the first thermoelectric element (280-1) and the second thermoelectric element (280-2) can be configured to convert heat emitted from a coil assembly (or magnetic body) such as the first coil assembly (621) and the second coil assembly (622) into electrical energy.

[0106] As described above with reference to FIGS. 5A, 5B, 5C, 6A, 6B, and / or 6C, the thermoelectric element may be positioned within the display device to receive heat from various heat-generating components of the display device (e.g., the electronic components (530) of FIGS. 5A to 5B, the SoC (550) of FIG. 5C, and / or the coil assembly (620) of FIGS. 6A to 6C). Hereinafter, exemplary positional relationships of heat-generating components, thermoelectric elements, and heat-dissipating components included in the display device are illustrated with reference to FIGS. 7A to 7C.

[0107] FIGS. 7A, 7B, and 7C are diagrams illustrating exemplary positional relationships of a thermoelectric element (280) and a battery component (710) included in a display device (101) according to various embodiments. Exemplary positional relationships of a thermoelectric element, a battery, and a heat dissipation component included in the display device (101) of FIGS. 1 to 4 are described with reference to FIGS. 7A, 7B, and 7C (which may be referred to as FIGS. 7A to 5C).

[0108] Referring to FIGS. 7A to 7C, the chassis (417) of the display panel and heat-generating components (e.g., control circuit (430) and / or power circuit (210)) disposed on the chassis (470) are illustrated when viewed from the rear side of the display device (101). Under the housing (or rear cover) of the display device (101), the chassis (417) and heat-generating components may be positioned to have any of the positional relationships (or layouts) of FIGS. 7A to 7C.

[0109] Referring to FIG. 7A, the thermoelectric element (280) can be in contact with at least a portion of the power circuit (210). For example, one surface of the thermoelectric element (280) can be in contact with at least a portion of the power circuit (210) (e.g., at least one of the coil assembly (620) described with reference to FIGS. 6A, 6B, and / or 6C, and / or the electronic components (530) of FIGS. 5A-5B), and the other surface of the thermoelectric element (280) can be in contact with the chassis (417). Based on the temperature difference between the two surfaces of the thermoelectric element (280), power can be generated from the thermoelectric element (280).

[0110] Referring to FIG. 7A, the display device (101) may include a battery component (710). The battery component (710) may include the battery (260) and / or the charging circuit (270) of FIG. 2. The battery component (710) may be mounted on or attached to the chassis (417). The battery component (710) may be connected to electrodes of the thermoelectric element (280). Through the electrodes, the battery of the battery component (710) may be charged by the thermoelectric element (280). To assist the charging, the battery component (710) may further include a charging circuit (e.g., the charging circuit (270) of FIG. 2). Although one embodiment is illustrated in which the battery component (710) is positioned on one side of the display device (101), the present disclosure is not limited thereto.

[0111] Referring to FIG. 7b, the thermoelectric element (280) can be in contact with the light source component (440) of the backlight component of the display panel. The thermoelectric element (280) can have a shape corresponding to the shape of the light source component (440). One side of the thermoelectric element (280) can be in contact with the light source component (440), and the other side of the thermoelectric element (280) can be in contact with the chassis (417). The thermoelectric element (280) can output or generate power based on heat generated in the light source component (440).

[0112] Referring to FIG. 7B, the battery component (710) of the display device (101) may be included in an accessory (e.g., a stand member) of the display device (101). For example, the battery component (710) may be included as a module in the stand member of the display device (101). For example, when the display device (101) and the stand member are fastened (or connected), an electrical connection between the battery component (710) and the thermoelectric element (280) may be established or formed.

[0113] Referring to FIG. 7C, the display device (101) may include a plurality of thermoelectric elements (e.g., a first thermoelectric element (281) and a second thermoelectric element (282)). The first thermoelectric element (281) may be in contact with at least a portion of the power circuit (210). The second thermoelectric element (282) may be in contact with another heat-generating component of the display device (101), such as the light source component (440). When the battery component (710) is charged by the plurality of thermoelectric elements, such as the first thermoelectric element (281) and the second thermoelectric element (282), the battery component (710) may be connected in series with the plurality of thermoelectric elements.

[0114] Referring to FIG. 7C, an exemplary circuit diagram of a plurality of thermoelectric elements and a battery component (710) is illustrated. A first thermoelectric element (281), a second thermoelectric element (282), and a battery component (710) may be connected in series. For example, a first electrode of the battery component (710) may be connected to a positive electrode of the first thermoelectric element (281), a negative electrode of the first thermoelectric element (281) may be connected to a positive electrode of the second thermoelectric element (282), and a negative electrode of the second thermoelectric element (282) may be connected to a second electrode of the battery component (710). In one embodiment in which a plurality of thermoelectric elements are connected in series, the battery component (710) (or the charging circuit (270) included in the battery component (710)) may receive a power signal having a composite voltage of the plurality of thermoelectric elements. The battery component (710) may be charged by the power signal.

[0115] Although the serial connection of the thermoelectric elements positioned on the light source component (440) and the power circuit (210) is illustrated in an exemplary manner, the present disclosure is not limited thereto. For example, a thermoelectric element may additionally be positioned on the SoC (e.g., the SoC (550) of FIG. 5C) of the control circuit (430). In this case, a serial connection may be established between the first thermoelectric element (281), the second thermoelectric element (282), and the thermoelectric element positioned on the SoC. Through the serial connection, the battery component (710) may receive power based on heat generated from the heat-generating component of the display device (101).

[0116] As described above, according to one embodiment, the display device (101) may be configured to convert electrical energy from heat generated by a heat generating component included in the display device (101) and store the converted electrical energy. The stored electrical energy may be used during an inactive state of the display device (101) to reduce standby power. To reduce standby power, the display device (101) may be electrically disconnected from the power system when using the electrical energy. The electrical energy may be used to detect an input for switching the state of the display device (101) from an inactive state to an active state.

[0117] In one embodiment, a method for minimizing and / or reducing the standby power of a display device (101) may be required. In one embodiment, a method for reducing the number of components included in the display device (101) may be required. In one embodiment, a method for reducing the volume of the display device (101) may be required. In one embodiment, a method for reducing the thickness (or depth) of the display device (101) may be required. In one embodiment, a method for reducing elements for heat dissipation (or heat dissipation) included in the display device (101) may be required. In one embodiment, a method for recycling heat generated from heat-generating components of the display device (101) may be required. According to one embodiment of the present invention, a display device (e.g., a display device (101) of FIG. 1) as described above includes a display panel (e.g., a display panel (410) of FIG. 4), a printed circuit board (PCB) (e.g., a PCB (520) of FIGS. 5A to 5C), electronic components including various circuits coupled on the PCB, a heat generating component configured to release heat based on driving of the display panel, a heat dissipation portion disposed on one surface of the display panel and including a thermoelectric material adjacent to the heat generating component, and a chassis including a support portion configured to support the PCB (e.g., a chassis (417) of FIG. 4), a thermoelectric element (e.g., a thermoelectric element (280) of FIG. 2) interposed between the heat generating component and the heat dissipation portion, the thermoelectric element including a first surface in contact with the heat generating component and a second surface in contact with the heat dissipation portion, and including at least one electrode), and a battery connected to the thermoelectric element (e.g., a battery connected to the thermoelectric element (e.g., a battery connected to the thermoelectric element) It may include a battery (260).The thermoelectric element may be configured to charge the battery based on a temperature difference between a first temperature of the first surface, which is related to the heat emitted from the heat generating component, and a second temperature of the second surface, which is lower than the first temperature by the heat dissipating portion.

[0118] For example, the heat generating component may include a coil assembly including at least one coil (e.g., the coils of FIG. 6A) interlocked with each other so as to be mutually coupled, and diodes (e.g., the diodes of FIG. 6A) respectively connected to different ends of the coils. The first side of the thermoelectric element may be attached to one side of the coil assembly on which the diodes are positioned.

[0119] For example, the PCB may include a through hole at least partially overlapping the heat generating component disposed on the PCB. The first surface of the thermoelectric element may be brought into contact with the heat generating component through the through hole of the PCB.

[0120] For example, the heat generating component may include backlight light emitting diodes (LEDs) configured to emit light toward the display panel. The first side of the thermoelectric element may be at least partially attached to the backlight LEDs arranged along the longitudinal direction of the display panel.

[0121] For example, a display device may include a system on a chip (SoC) (e.g., SoC (550) of FIG. 5C) including various circuits configured to drive the display panel, a heat sink (e.g., heat sink (560) of FIG. 5B), and another thermoelectric element including at least one electrode having a third surface attached to the SoC and a fourth surface attached to the heat sink. The battery may be coupled in series with the thermoelectric element and the other thermoelectric element.

[0122] For example, the PCB may include a first portion on which the heat generating component is mounted and a second portion surrounding the first portion. The first portion may include metal (e.g., a metal plate (540) of FIG. 5b).

[0123] For example, the display device may include a charging circuit (e.g., charging circuit (270) of FIG. 2) configured to control charging of the battery based on power generated from the thermoelectric element. The charging circuit may be configured to regulate a current input to the battery to maintain the generation of the power from the thermoelectric element.

[0124] For example, the thermoelectric element may include a plate (e.g., a first plate (321) of FIG. 3) including a first surface (e.g., surface (311) of FIG. 3) attached to the heat generating component, an n-type semiconductor extending from a first portion on a third surface of the plate opposite the first surface toward the second surface (e.g., an n-type semiconductor (350) of FIG. 3), and a p-type semiconductor extending from a second portion on the third surface, spaced apart from the first portion, toward the second surface on the third surface of the plate (e.g., a p-type semiconductor (360) of FIG. 3).

[0125] According to one embodiment of the present invention, a display device as described above may include a controller, a power circuit configured to drive the display device and configured to obtain power from a power system external to the display device, an infrared (IR) sensor, a display panel, a thermoelectric element including at least one electrode configured to at least partially convert thermal energy of at least one of the controller or the power circuit into electrical energy, and a battery configured to store the electrical energy. The controller may be configured to receive a first input for stopping provision of an image through the display panel. The controller may be configured to deactivate the power circuit and the display panel based on the first input. The controller may be configured to activate the IR sensor using the electrical energy stored in the battery to detect, based on the deactivation, a second input through the IR sensor for starting provision of an image through the display panel.

[0126] For example, a display device may include a chassis configured to support the display panel. The thermoelectric element may include a first side attached to at least a portion of the power circuit, and a second side attached to the chassis.

[0127] For example, the controller may be configured to control the power circuit to reduce standby power of the display device measured in the power system based on receiving the input.

[0128] For example, the controller may be configured to control the power circuit to initiate driving of the display panel based on power from the power system in response to detecting a signal representing the second input via the IR sensor.

[0129] For example, the power circuit may include a coil assembly comprising coils interlocked with each other so as to be mutually coupled, and diodes connected to different ends of the coils. One side of the thermoelectric element may be attached to one side of the coil assembly where the diodes are positioned.

[0130] As described above, in one embodiment, a method of controlling or operating a display device may be provided. The display device may include a power circuit configured to obtain power for driving the display device from a power system external to the display device, an infrared (IR) sensor, a display panel, a thermoelectric element including at least one electrode configured to at least partially convert thermal energy of at least one of the power circuits into electrical energy, and a battery configured to store the electrical energy. The method may include receiving a first input for stopping provision of an image through the display panel. The method may include deactivating the power circuit and the display panel based on the first input. The method may include activating the IR sensor using the electrical energy stored in the battery to detect, through the IR sensor, a second input for starting provision of an image through the display panel based on the deactivation.

[0131] As used herein, the term "if" will be understood to refer to "when, upon," "in response to deciding," or "in response to detecting," depending on the context. Similarly, "if it is decided to," or "if [the stated condition or event] is detected," will optionally be understood to refer to "upon deciding," or "in response to deciding," "upon detecting [the stated condition or event]," or "in response to detecting [the stated condition or event]."

[0132] The devices described above may be implemented as hardware components, software components, and / or a combination of hardware components and software components. For example, the devices and components described in the present disclosure may be implemented using one or more general-purpose computers or special-purpose computers, such as a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA), a programmable logic unit (PLU), a microprocessor, or any other device capable of executing instructions and responding to them. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. The processing device may also access, store, manipulate, process, and generate data in response to the execution of the software. For ease of understanding, the processing device is sometimes described as being used alone; however, one of ordinary skill in the art will recognize that the processing device may include multiple processing elements and / or multiple types of processing elements. For example, a processing unit may include multiple processors, or a processor and a controller. Other processing configurations, such as parallel processors, are also possible.

[0133] Software may include a computer program, code, instructions, or a combination of one or more of these, which may configure a processing device to perform a desired operation or may independently or collectively command the processing device. The software and / or data may be embodied in any type of machine, component, physical device, computer storage medium, or device for interpretation by the processing device or for providing instructions or data to the processing device. The software may also be distributed over networked computer systems and stored or executed in a distributed manner. The software and data may be stored on one or more computer-readable recording media.

[0134] The method according to the embodiment may be implemented in the form of program commands that can be executed through various computer means and recorded on a computer-readable medium. In this case, the medium may continuously store a computer-executable program or temporarily store it for execution or download. In addition, the medium may be various recording means or storage means in the form of a single or multiple hardware combinations, and the present disclosure is not limited to media directly connected to a computer system, but may also be distributed over a network. Examples of the medium may include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, and those configured to store program commands, including ROM, RAM, and flash memory. In addition, examples of other media may include recording media or storage media managed by app stores that distribute applications, sites that supply or distribute various software, servers, etc.

[0135] Although the various embodiments described above have been described with reference to limited embodiments and drawings, those skilled in the art will recognize that various modifications and variations are possible based on the above teachings. For example, appropriate results can still be achieved even if the described techniques are performed in a different order than described, and / or components of the described systems, structures, devices, circuits, etc. are combined or combined in a different manner than described, or are replaced or substituted with other components or equivalents.

[0136] Therefore, other implementations, other embodiments, and those included in the appended claims, which are considered to be within the scope of the present disclosure, are equivalents. Any of the embodiments disclosed herein may be used in combination with any other embodiment disclosed herein.

Claims

1. In a display device, display panel; printed circuit board (PCB); A heat generating component comprising electronic components including various circuits coupled on the PCB and configured to emit heat based on the driving of the display panel; A chassis including a heat dissipation portion disposed on one side of the display panel and including a thermoelectric material adjacent to the heat generating component, and a support portion configured to support the PCB; A thermoelectric element interposed between the heat generating component and the heat dissipating portion, comprising a first surface in contact with the heat generating component and a second surface in contact with the heat dissipating portion, and including at least one electrode; and A battery connected to the thermoelectric element is included, The above thermoelectric element, configured to charge the battery based on a temperature difference between a first temperature of the first surface, which is related to the heat emitted from the heat generating component, and a second temperature of the second surface, which is lower than the first temperature by the heat dissipating portion. Display device.

2. In claim 1, the heating component is: A power circuit configured to obtain power for driving the display device from a power system external to the display device, The above thermoelectric element, Attached to the first surface, formed on at least a portion of the power circuit, Display device.

3. In claim 2, the display panel, configured to be driven by the power obtained by the above power circuit, The above display device, Further comprising electronic components including various circuits configured to be at least partially driven by power charged in the battery, based on an electrical disconnection between the power system and the display device. Display device.

4. In claim 3, the display panel, configured to be deactivated by the electrical disconnection between the power system and the display device; Display device.

5. In claim 3, the electronic component, In response to an input to stop providing video through the above display panel: Controlling the power circuit to initiate the electrical disconnection between the power system and the display device; and A controller comprising a circuit configured to establish an electrical connection between the battery and at least a portion of the electronic component; Display device.

6. In claim 5, the electronic component, Includes an IR (infrared) sensor, The above controller, To maintain the activation of the IR sensor, configured to establish an electrical connection between the battery and the IR sensor in response to the input, Display device.

7. In claim 6, the controller, Based on receiving an optical signal representing another input for driving the display panel through the IR sensor, the power circuit is configured to control the power circuit to start driving the display panel and the electronic components based on the power. Display device.

8. In claim 5, the standby power of the display device is: Based on the onset of said electrical disconnection between said power system and said display device, the power measured in said power system after said input is reduced. Display device.

9. In claim 2, the heating component is: Coils interlocked with each other so as to be mutually coupled; and A coil assembly comprising diodes each connected to different ends of the coils, and The first surface of the thermoelectric element is, Attached to one side of the coil assembly, where the diodes are positioned, Display device.

10. In claim 1, the PCB, Including a through hole at least partially overlapping with the heat generating component arranged on the PCB, The first surface of the thermoelectric element is, Through the through hole of the PCB, in contact with the heat generating component, Display device.

11. In claim 1, the heating component is: comprising backlight LEDs (light emitting diodes) configured to emit light toward the display panel; The first surface of the thermoelectric element is, At least partially attached to the backlight LEDs arranged along the length direction of the display panel, Display device.

12. In claim 1, A system on a chip (SoC) including a circuit configured to drive the display panel; heat sink; and Further comprising another thermoelectric element having a third side attached to the SoC and a fourth side attached to the heat sink, the thermoelectric element including at least one electrode; The above battery, The thermoelectric element, and the other thermoelectric element connected in series with the thermoelectric element, Display device.

13. In claim 1, the PCB, It includes a first part in which the above-mentioned heat generating component is mounted and a second part surrounding the first part, The above first part is, Containing metal, Display device.

14. In claim 1, Further comprising a charging circuit for controlling charging of the battery based on the power generated from the thermoelectric element; The above charging circuit, In order to maintain the generation of the power in the thermoelectric element, the current input to the battery is configured to be controlled. Display device.

15. In claim 1, the thermoelectric element, A plate including the first surface attached to the above-described heat generating component; An n-type semiconductor extending from a first portion on a third surface of the plate, opposite to the first surface, toward the second surface; and A p-type semiconductor including a second portion on the third surface of the plate, spaced apart from the first portion, extending toward the second surface, Display device.

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