Circuit board assembly and display device including same

Abstract

This display device may comprise a display panel and a communication assembly. The communication assembly may comprise: a T-shaped communication board including a main area, and a first area and a second area respectively disposed on both sides of the main area; a first antenna disposed on the surface of the first area; and a second antenna disposed on the same plane as the first area and disposed on the surface of the second area.

Description

Circuit board assembly and display device including the same

[0001] The present disclosure relates to a circuit board assembly and a display device including the same.

[0002] A display device is a type of output device that visually displays data information and images, such as characters or shapes, and may include televisions, various monitors, and various portable terminals (e.g., laptops, tablet PCs, and smartphones).

[0003] The display device may support wireless communication functions such as Wi-Fi or Bluetooth. For example, the display device may be equipped with an antenna having a very wide frequency band covering multiple service bands, or a multi-band antenna operating in dual or multiple frequency bands. For example, the display device may be equipped with multiple antennas corresponding to each frequency band.

[0004] As printed circuit boards (PCBs) included in display devices become lighter and smaller, antenna performance may be degraded due to interference or collision between signals between multiple antennas placed on the printed circuit board.

[0005] Therefore, when multiple antennas are placed on a printed circuit board having a limited area, a method to ensure isolation between the multiple antennas may be required.

[0006] The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art related to the present disclosure.

[0007] An embodiment of the present disclosure provides a display device including a technique for minimizing and / or reducing signal interference occurring between a plurality of antennas disposed on a printed circuit board assembly.

[0008] A display device according to one embodiment of the present disclosure may include a display panel and a communication assembly. The communication assembly may include a "T"-shaped communication substrate comprising a main area and a first area and a second area respectively disposed on both sides of the main area, a first antenna disposed on the surface of the first area, and a second antenna disposed on the same plane as the first area and disposed on the surface of the second area.

[0009] A printed circuit board assembly according to one embodiment of the present disclosure may include a "T"-shaped communication board comprising a main area and a first area and a second area respectively disposed on both sides of the main area, a first antenna disposed on the surface of the first area, and a second antenna disposed on the same plane as the first area and disposed on the surface of the second area. The size of the first area and the size of the second area may be smaller than the size of the main area, and the top of the main area, the top of the first area, and the top of the second area may be disposed side by side.

[0010] A display device according to one embodiment of the present disclosure can provide a communication assembly with improved antenna performance while achieving lightweight and miniaturization.

[0011] A display device according to one embodiment of the present disclosure can provide a communication assembly that secures isolation between antennas and reduces interference between radiated signals.

[0012] However, the problems to be solved in this disclosure are not limited to those mentioned above, and may be determined in various ways without departing from the spirit and scope of this disclosure.

[0013] The aspects, features, and advantages of the above and other specific embodiments of the present disclosure will become more apparent from the following detailed description together with the accompanying drawings.

[0014] FIG. 1 is an exemplary front exploded perspective view of a display device according to various embodiments.

[0015] FIG. 2 is an exemplary rear exploded perspective view of a display device according to various embodiments.

[0016] FIG. 3 is a rear view illustrating a chassis included in a display device according to various embodiments.

[0017] FIG. 4 is a rear view of a first communication assembly viewed from the rear with respect to a display device according to various embodiments.

[0018] FIG. 5 is a drawing showing the direction of current applied to the first to third antennas included in the first communication assembly according to various embodiments.

[0019] FIGS. 6a, FIGS. 6b, and FIGS. 6c are drawings showing the radiation patterns of electrical signals radiated from a first antenna to a third antenna included in a first communication assembly according to various embodiments.

[0020] FIG. 7 is a table illustrating mutual isolation between the first to third antennas included in the first communication assembly according to various embodiments.

[0021] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments and should be understood to include various modifications, equivalents, or substitutions. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of said items unless the relevant context clearly indicates otherwise. In this document, phrases such as "A or B," "at least one of A and B," "at least one of A or B," "A, B or C," "at least one of A, B and C," and "at least one of A, B, or C" may each include any one of the items listed together in the corresponding phrase, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from another corresponding component and do not limit the components in any other aspect (e.g., importance or order).

[0022] Hereinafter, in this document, "front-back direction," "left-right direction," and "up-down direction" may be used based on the illustrated drawings, and the shape and position of each component are not limited by this.

[0023] Based on the display device (1) of FIG. 1 or lower described below, the +X axis and the -X axis can be defined as the right and left sides, respectively, with respect to the center of the display device (1). The +Y axis and the -Y axis can be defined as the upper and lower sides, respectively, with respect to the center of the display device (1). The +Z axis and the -Z axis can be defined as the front and rear sides, respectively, with respect to the center of the display device (1).

[0024] According to one embodiment, each component (e.g., module or program) of the components described above may include a singular or multiple entities, and some of the multiple entities may be separated and placed in other components.

[0025] FIG. 1 is an exemplary front exploded perspective view of a display device (1) according to various embodiments.

[0026] Referring to FIG. 1, a display device (1) according to one embodiment may include various types of devices capable of playing video content and having a display, such as a smart TV, tablet, monitor, smartphone, desktop computer, laptop computer, etc.

[0027] According to one embodiment, the display device (1) may include a television that processes broadcast images based on broadcast signals, broadcast information, and broadcast data received from a broadcasting station's transmission equipment. However, the display device (1) is not limited to a television and may include various devices that display information, data, etc., such as characters, shapes, graphs, images, etc., such as a computer monitor, a mobile phone, an electronic display board, or signage.

[0028] According to one embodiment, the display device (1) can display on the screen a video, photo, application, OSD (on-screen display), user interface for control, etc. based on signals and data stored in an internal or external storage medium.

[0029] According to one embodiment, the display device (1) may be implemented as a smart TV or an IP TV (internet protocol TV). The smart TV can receive and display broadcast signals in real time and has a web browsing function, so that it is possible to search for and consume various content via the internet simultaneously with the display of real-time broadcast signals.

[0030] According to one embodiment, the display device (1) may include a display panel that displays an image. The display panel may be implemented as a liquid crystal panel (10). However, it is not limited thereto, and the display panel may be a self-emissive organic light emitting diode (OLED) panel or a micro LED panel, in which case the backlight unit described below may be omitted.

[0031] According to one embodiment, the liquid crystal panel (10) may include a thin film transistor substrate in which a thin film transistor is formed in a matrix form, a color filter substrate coupled in parallel with the thin film transistor substrate, and a liquid crystal injected between the thin film transistor substrate and the color filter substrate, the optical properties of which vary according to changes in voltage or temperature.

[0032] According to one embodiment, the liquid crystal panel (10) may have a front surface (11) on which an image is displayed, a rear surface (12) formed on the opposite side of the front surface (11), and four sides (13a, 13b, 13c, 13d) on the top, bottom, left, and right.

[0033] According to one embodiment, the display device (1) may include a backlight unit positioned behind the liquid crystal panel (10) to provide light to the liquid crystal panel (10), and a chassis assembly supporting the backlight unit and the liquid crystal panel (10).

[0034] According to one embodiment, a backlight unit may be positioned behind a liquid crystal panel (10) to illuminate light toward the liquid crystal panel (10). The backlight unit may include a light source module (40) comprising a light source and a substrate on which the light source is mounted, and optical members positioned on the path of light emitted from the light source.

[0035] According to one embodiment, the light source module (40) may be positioned to correspond to at least one side of the liquid crystal panel (10). Specifically, the light source module (40) may be positioned to correspond to the left side (13c) and the right side (13d) of the liquid crystal panel (10). However, the number and position of the light source module (40) are not limited thereto. For example, the light source module (40) may be positioned to correspond to the upper side (13a) and the lower side (13b) of the liquid crystal panel (10), or to correspond to four sides (13a, 13b, 13c, 13d), or to correspond to only one of the four sides (13a, 13b, 13c, 13d). For example, the light source module (40) may be positioned at the rear of the liquid crystal panel (10) rather than at the side of the liquid crystal panel (10).

[0036] According to one embodiment, a blue LED may be used as a light source. For example, a cold cathode fluorescent lamp (CCFL) or an external electrode fluorescent lamp (EEFL) may be used as a light source.

[0037] According to one embodiment, optical members may be placed on the path of light emitted from a light source module (40) to guide the direction of light propagation or improve optical characteristics. For example, the optical members may include a light guide plate (34) that guides light emitted from a light source toward a liquid crystal panel (10), a reflective sheet (35) that reflects light emitted from the light source module (40) or light emitted backward from the light guide plate (34), optical sheets (31, 32) that improve optical characteristics such as brightness improvement, and a quantum dot sheet (33) that improves color reproduction.

[0038] According to one embodiment, an optical sheet (31, 32) may be placed in front of a light guide plate (34) to improve the optical characteristics of light emitted from the light guide plate (34). The optical sheet (31, 32) may include a prism sheet that improves brightness by concentrating light, a protection sheet that protects other optical sheets from external impact or foreign matter ingress, a dual brightness enhancement film (DBEF) that improves brightness by transmitting one polarization and reflecting the other polarization.

[0039] According to one embodiment, the quantum dot sheet (33) can improve color reproduction by changing the wavelength of light. For example, quantum dots, which are semiconductor crystals of several nanometers in size that emit light, may be dispersed within the quantum dot sheet (33). The quantum dots receive blue light and, depending on their size, can generate light of various wavelengths, for example, light of all colors included in visible light.

[0040] According to one embodiment, the chassis assembly may include a rear chassis (23) provided to support a backlight unit, a front chassis (21) provided in front of the rear chassis (23) to support a liquid crystal panel (10), and a middle mold (22) coupled between the front chassis (21) and the rear chassis (23).

[0041] According to one embodiment, the rear chassis (23) may be positioned at the rear of the backlight unit. The rear chassis (23) may have a plate shape with the edges roughly folded forward. The backlight unit may be accommodated between the rear chassis (23) and the front chassis (21).

[0042] According to one embodiment, the rear chassis (23) can dissipate heat generated from a heat-generating element, such as a light source, to the outside. For example, the rear chassis (23) may be formed of various metal materials such as aluminum, stainless steel (STS), or plastic materials such as ABS.

[0043] According to one embodiment, the front chassis (21) may have a frame shape having an opening through which the front (11) of the liquid crystal panel (10) is exposed. A middle mold (22) may be coupled between the front chassis (21) and the rear chassis (23) to support the liquid crystal panel (10), the light guide plate (34), and the optical sheets (31, 32).

[0044] According to one embodiment, the rear of the rear chassis (23) (e.g., the rear (24) of FIG. 2) may be provided with various electronic components for driving the display device (1) and processing video signals for displaying images on the display panel, a substrate on which these are mounted, and a communication device for communicating with an external device.

[0045] According to one embodiment, a cover (27) may be attached to the rear of the rear chassis (23) to cover the various electrical components and to form the rear exterior of the display device (1).

[0046] FIG. 2 is an exemplary rear exploded perspective view of a display device (1) according to various embodiments.

[0047] FIG. 3 is a rear view illustrating a chassis included in a display device (1) according to various embodiments.

[0048] According to one embodiment, the main board (51), the power supply unit (e.g., including a power supply unit) (52), and the driving unit (e.g., including a circuit) (53) can be connected to each other by a cable (54).

[0049] According to one embodiment, electronic components mounted on the main board (51) include chipsets, memory, etc., and wiring or transmission lines may be provided on the main board (51) to electrically connect these electronic components. Electronic components provided on the main board (51) may include a tuner for tuning broadcast signals by channel and an image processing unit for processing video signals. The image processing unit, which includes various circuits, may be implemented as an individual configuration capable of independently performing each process for processing video signals, that is, as a group of electronic components, or may be implemented in a form included in a main SoC (system-on-chip) that integrates various functions. The main SoC may include at least one processor that controls the overall operation of the display device (1) and the signal flow between internal components.

[0050] According to one embodiment, the processor may include various processing circuitries, load a control program to perform control operations, and execute the loaded control program. For example, the processor may include at least one of a central processing unit (CPU), a microprocessor, or an application processor (AP). Accordingly, the processor may include various processing circuitries and / or multiple processors. For example, the term "processor" as used herein may include various processing circuitries, including claims, and may include at least one processor. One or more of these processors may be configured to perform various functions described herein, either individually or collectively in a distributed manner. When "processor," "at least one processor," and "one or more processors" are described herein as being configured to perform multiple functions, these terms include, but are not limited to, cases where, for example, one processor performs some of the described functions and another processor performs other described functions, and a single processor performs all described functions. Additionally, at least one processor may include a combination of processors performing the various functions described / disclosed in a distributed manner. At least one processor can execute program instructions to achieve or perform various functions.

[0051] According to one embodiment, a signal generated or combined through an image processing unit can be output to a liquid crystal panel (10) through a driving unit (53). The driving unit (53) can be implemented as a control board equipped with a timing controller that controls a driving circuit and improves image quality.

[0052] According to one embodiment, the power supply unit (52) includes a power supply device and can supply power to each component of the display device (1). The power supply unit (52) converts commercial AC power input from the outside into power supplied to each component of the display device (1) and supplies it, and may include an inverter or an SMPS (switching mode power supply).

[0053] According to one embodiment, the main board (51) may be positioned inward from the edges of the display device (1). For example, it may be positioned inward from the edges (25a, 25b, 25c, 25d) of the rear chassis (23) to the inner region (26).

[0054] According to one embodiment, the display device (1) may include a first communication assembly (100) and a second communication assembly (200). The first communication assembly (100) and the second communication assembly (200) may provide a connection between the display device (1) and an external device and provide a communication function with the external device.

[0055] According to one embodiment, the first communication assembly (100) can be electrically connected to the main board (51) by a cable (55).

[0056] According to one embodiment, a portion of the first communication assembly (100) may be positioned to be exposed outward with respect to the side of the display device (1). For example, a portion of the first communication assembly (100) may be positioned to be exposed outwardly to the lower edge (25b) included in the edges (25a, 25b, 25c, 25d) of the rear chassis (23). For example, an antenna included in the first communication assembly (100) (e.g., the first to third antennas (130, 140, 150) of FIG. 4) may be positioned to be exposed outwardly to the edge (25b).

[0057] According to one embodiment, a part of the first communication assembly (100) is positioned so as to be exposed to the outside relative to the side of the display device (1), thereby allowing the display device (1) to easily establish a wireless connection with an external device.

[0058] According to one embodiment, a first communication assembly (100) may include a first communication substrate (101) (e.g., see FIG. 4) and a first antenna (130), a second antenna (140), and a third antenna (150) disposed on the first communication substrate (101). The first antenna (130) may be referred to as the main antenna. In this case, the second antenna (140) may be referred to as the first antenna in relation to the third antenna (150), and the third antenna (150) may be referred to as the second antenna in relation to the second antenna (140).

[0059] According to one embodiment, the first communication substrate (101) may have a "T" shape. The first communication substrate (101) may include a main area (102), a first area (103) and a second area (104) respectively disposed on both sides of the main area (102).

[0060] According to one embodiment, various types of electrical components or electrical circuits for providing wireless communication functions may be disposed on the first communication board (101). For example, an antenna configured to radiate an electrical signal and integrated circuits (ICs) for providing communication functions may be disposed on the first communication board (101).

[0061] According to one embodiment, a first antenna (130), a second antenna (140), and a third antenna (150) may be disposed on the first communication board (101). For example, the first communication board (101) may further include a first communication module (160) including various circuits for processing RF signals or a power module (170) including various circuits for controlling power to said components.

[0062] According to one embodiment, the first communication module (160) may be implemented according to any one of various communication methods. For example, the first communication module (160) may be configured to perform data communication according to the IEEE Wi-Fi standard specifications.

[0063] According to one embodiment, a second antenna (140) and a third antenna (150) disposed on a first communication board (101) can transmit and receive electrical signals based on the same communication protocol. For example, the second antenna (140) and the third antenna (150) can transmit and receive signals for performing data communication according to Wi-Fi standard specifications.

[0064] According to one embodiment, first to third antennas (130, 140, 150) may be placed on a first communication substrate (101) to minimize and / or reduce interference of the radiated signal. For example, a second antenna (140) and a third antenna (150) based on the same communication protocol may be placed on the first communication substrate (101) to ensure a certain degree of isolation to minimize and / or reduce signal interference. In this regard, the configuration and structure of the first communication assembly (100) in FIG. 4 will be described in detail.

[0065] According to one embodiment, the second communication assembly (200) may include a second communication substrate (255), a multi-band antenna (270) disposed on the second communication substrate (255), and a second communication module (280).

[0066] According to one embodiment, a multi-band antenna (270) for transmitting and receiving RF (radio frequency) signals for communication between a display device (1) and an external device may be disposed on the second communication board (255). For example, the multi-band antenna (270) may transmit and receive RF signals of 2.4 GHz and 5 GHz.

[0067] According to one embodiment, a second communication module (280) for processing RF signals may be provided on the second communication board (255). The second communication module (280) may be implemented as an electronic component in the form of a chipset mounted on the second communication board (255). The second communication module (280) may process RF signals so that the display device (1) can communicate with an external device under the control of a processor.

[0068] According to one embodiment, the second communication module (280) may be implemented according to any one of various communication methods. For example, the second communication module (280) may be configured to perform data communication according to the IEEE Wi-Fi standard specifications.

[0069] FIG. 4 is a rear view of a first communication assembly (100) viewed from the rear (e.g., +Z-axis direction) with respect to a display device (1) according to various embodiments.

[0070] The embodiment of FIG. 4 can be optionally combined with the embodiments of FIG. 1 to 3.

[0071] Referring to FIG. 4, the first communication assembly (100) may include a first communication board (101) and one or more electrical components disposed on the first communication board (101). For example, one or more electrical components may include a radiator such as an antenna (e.g., a first antenna (130), a second antenna (140), a third antenna (150)). For example, one or more electrical components may include an integrated circuit (IC) such as a first communication module (160). For example, one or more electrical components may include an integrated circuit (IC) such as a power module (170).

[0072] According to one embodiment, the first communication substrate (101) may be formed in a "T" shape. For example, the first communication substrate (101) may include a main area (102), a first area (103), and a second area (104). For example, the first area (103) and the second area (104) may be disposed on each side of the main area (102).

[0073] According to one embodiment, the first communication substrate (101) may be provided as a single substrate. For example, the first communication substrate (101) may be integrally formed with a substrate forming a main area (102), a substrate forming a first area (103), and a substrate forming a second area (104). However, the first communication substrate (101) may be formed by connecting a plurality of substrates, not limited thereto. For example, the first communication substrate (101) may be formed by combining a substrate forming a main area (102), a substrate forming a first area (103), and a substrate forming a second area (104).

[0074] According to one embodiment, the size of the main area (102) may be relatively larger than the size of the first area (103) and / or the size of the second area (104). For example, the area occupied by the main area (102) may be relatively larger than the area occupied by the first area (103) and / or the area occupied by the second area (104). For example, the size of the first area (103) and the size of the second area (104) may be generally the same.

[0075] According to one embodiment, the first area (103) may be positioned to the left of the main area (102). The second area (104) may be positioned to the right of the main area (103). For example, the first area (103) and the second area (104) may be positioned symmetrically along the Y-axis with respect to the center of the main area (102).

[0076] According to one embodiment, a first end (1021) located on the upper side (e.g., in the +Y axis direction) of the main area (102), a second end (1031) located on the upper side (e.g., in the +Y axis direction) of the first area (103), and a third end (1041) located on the upper side (e.g., in the +Y axis direction) of the second area (104) may be arranged generally side by side. For example, the first end (1021), the second end (1031), and the third end (1041) may be arranged in a straight line.

[0077] According to one embodiment, the main area (102) may include a first side (1023) and a second side (1025). For example, the first side (1023) may be connected to the bottom (1033) of the first area (103) and positioned to be orthogonal to the bottom (1033) of the first area (103). For example, the second side (1025) may be positioned to be orthogonal to the bottom (1043) of the second area (104).

[0078] According to one embodiment, the first antenna (130) may be placed on the main area (102). For example, the first antenna (130) may be implemented as a radiator configured to radiate an electrical signal (e.g., RF signal) for Bluetooth communication. The first antenna (130) may include a feeding portion for feeding and a ground portion electrically connected to a ground terminal included in the first communication board (101). The first antenna (130) may be configured to radiate electromagnetic waves for Bluetooth communication through the feeding portion and the ground portion. The feeding refers to a series of processes in which, during transmission, an electrical signal from the communication module (160) is supplied to the antenna (e.g., the first antenna (130)) to convert it into an RF signal, and during reception, the antenna converts the received RF signal into an electrical signal and transmits it to the communication module (160). The above-mentioned power supply portion is electrically connected to a communication module (160) and can receive an electrical signal for controlling the first antenna (130) from the communication module (160).

[0079] According to one embodiment, the second antenna (140) may be placed on the first region (103). The third antenna (150) may be placed on the second region (104).

[0080] According to one embodiment, the second antenna (140) and the third antenna (150) may be implemented as radiators configured to radiate an electrical signal for Wi-Fi communication.

[0081] According to one embodiment, the second antenna (140) may include a second feed portion (141) configured to receive an electrical signal for controlling the second antenna (140) by being electrically connected to a communication module (160), and a second ground portion (145) electrically connected to a ground terminal included in the first communication board (101). The second antenna (140) may radiate an RF signal corresponding to the control signal of the communication module (160) through the second feed portion (141) and the second ground portion (145).

[0082] According to one embodiment, the second feed portion (141) may be positioned at the bottom of the second antenna (140). The second ground portion (145) may be positioned to the left of the second antenna (140).

[0083] According to one embodiment, the third antenna (150) may include a third feed portion (151) configured to receive an electrical signal for controlling the third antenna (150) by being electrically connected to a communication module (160), and a third ground portion (155) electrically connected to a ground terminal included in the first communication board (101).

[0084] The third antenna (150) can radiate an RF signal corresponding to a control signal of the communication module (160) through the third feed portion (151) and the third ground portion (155).

[0085] According to one embodiment, the third feed portion (151) may be positioned at the bottom of the third antenna (150). The third ground portion (155) may be positioned to the right of the third antenna (150).

[0086] According to one embodiment, the second antenna (140) and the third antenna (150) may be arranged symmetrically with respect to the center of the first communication assembly (100). For example, the second antenna (140) and the third antenna (150) may be arranged symmetrically with respect to a first reference line (L1) passing through the center of the main area (102).

[0087] According to one embodiment, the second feed portion (141) included in the second antenna (140) and the third feed portion (151) included in the third antenna (150) may be arranged symmetrically with respect to the first reference line (L1).

[0088] According to one embodiment, the second ground portion (145) included in the second antenna (140) and the third ground portion (155) included in the third antenna (150) may be arranged symmetrically with respect to the first reference line (L1).

[0089] According to one embodiment, the second antenna (140) and the third antenna (150) are arranged symmetrically with respect to the first reference line (L1), so that the electrical signal radiated from the second antenna (140) (e.g., the second electrical signal (R2) in FIG. 6a) and the electrical signal radiated from the third antenna (150) (e.g., the third electrical signal (R3) in FIG. 6c) can be orthogonal to each other. In this regard, further details will be explained with reference to FIG. 6 below.

[0090] According to one embodiment, the first communication assembly (100) can secure a predetermined degree of isolation to reduce the degradation of radiation performance between antennas (130, 140, 150) by the arrangement structure of the second antenna (140) and the third antenna (150). The first communication assembly (100) can improve wireless connectivity between the display device (1) and an external device by minimizing and / or reducing interference between radiated signals.

[0091] According to one embodiment, in order for the electrical signals radiated from the second antenna (140) and the third antenna (150) to be orthogonal to each other, the second ground portion (145) included in the second antenna (140) and the third ground portion (155) included in the third antenna (150) may be located in a predetermined area.

[0092] According to one embodiment, the second ground portion (145) included in the second antenna (140) may be located to the left of the second auxiliary line (L2), which is defined as a straight line connecting the main area (102) and the first area (103). For example, the second ground portion (145) may be located outside the main area (102) with respect to the second auxiliary line (L2).

[0093] According to one embodiment, the third ground portion (155) included in the third antenna (150) may be located to the right of the third auxiliary line (L3), which is defined as a straight line connecting the main area (102) and the second area (104). For example, the third ground portion (155) may be located outside the main area (102) with respect to the third auxiliary line (L3).

[0094] According to one embodiment, the second ground portion (145) and the third ground portion (155) are each located outside the main area (102) with respect to the second auxiliary line (L2) and the third auxiliary line (L3), respectively, so that the signal (R2) radiated from the second antenna (140) and the signal (R3) radiated from the third antenna (150) can be orthogonal to each other. For example, when the second ground portion (145) and the third ground portion (155) are each located inside the main area (102) with respect to the second auxiliary line (L2) and the third auxiliary line (L3), the signal (R2) radiated from the second antenna (140) and the signal (R3) radiated from the third antenna (150) can be radiated along the edge of the main area (102), and antenna performance may be degraded due to signal interference.

[0095] FIG. 5 is a drawing showing the direction of current applied to first to third antennas (130, 140, 150) (e.g., first antenna (130), second antenna (140), and third antenna (150) of FIG. 4) included in a first communication assembly (100) (e.g., the first communication assembly (100) of FIG. 3) according to various embodiments.

[0096] The embodiment of FIG. 5 can be optionally combined with the embodiment of FIG. 4.

[0097] Referring to FIG. 5, each of the first antenna (130), the second antenna (140), and the third antenna (150) may be configured to radiate an electrical signal of a specific frequency band to perform a predetermined communication. For example, electromagnetic waves of a specific frequency band may be radiated from a feed portion (e.g., the second feed portion (141) and the third feed portion (151) of FIG. 4) included in the first to third antennas (130, 140, 150). The first to third antennas (130, 140, 150) may be configured to radiate electromagnetic waves of a specific frequency band by a current applied to the first communication assembly (100) from a feed portion or a power supply portion (e.g., the power supply portion (52) of FIG. 2).

[0098] According to one embodiment, an electrical signal radiated from the first antenna (130) will be defined as a "first radiated signal (R1) (e.g., see FIG. 6a)". For example, an electrical signal radiated from the second antenna (140) will be defined as a "second radiated signal (R2) (e.g., see FIG. 6b)". An electrical signal radiated from the third antenna (150) will be defined as a "third radiated signal (R3) (e.g., see FIG. 6c)".

[0099] According to one embodiment, a predetermined current may be applied to the first antenna (130) so that an electrical signal is radiated from the first antenna (130), and said current may be referred to as the first applied current. A predetermined current may be applied to the second antenna (140) so that an electrical signal is radiated from the second antenna (140), and said current may be referred to as the second applied current. A predetermined current may be applied to the third antenna (150) so that an electrical signal is radiated from the third antenna (150), and said current may be referred to as the third applied current.

[0100] According to one embodiment, the direction and strength of the radiation signal of each of the first radiation signal (R1), the second radiation signal (R2), and the third radiation signal (R3) can be determined by the shape of the first communication substrate (101) and the arrangement structure of the first to third antennas (130, 140, 150).

[0101] According to one embodiment, a first radiation signal (R1) is radiated from a first antenna (130) and can be radiated generally in a left-right direction (e.g., in the X-axis direction). For example, a portion of the first radiation signal (R1) can be radiated toward a first region (103) (e.g., the first region (103) of FIG. 4) and a portion can be radiated toward a second region (104) (e.g., the second region (104) of FIG. 4).

[0102] According to one embodiment, the second radiation signal (R2) may be radiated from the second antenna (140) and radiated diagonally downward. For example, the second radiation signal (R2) may be radiated from the second feed portion (e.g., the second feed portion (141) of FIG. 4) and radiated toward the lower right side of the main area (102) (e.g., the main area (102) of FIG. 4).

[0103] According to one embodiment, a second ground portion (145) included in the second antenna (140) (e.g., the second ground portion (145) of FIG. 4) is positioned outside the main area (102) with respect to the second auxiliary line (L2) (e.g., the second auxiliary line (L2) of FIG. 4), and as the shape of the first communication board (101) is formed in a "T" shape, the second radiation signal (R2) can be radiated toward the lower right side of the main area (102).

[0104] According to one embodiment, the third radiation signal (R3) may be radiated from the third antenna (150) and radiated diagonally downward. For example, the third radiation signal (R3) may be radiated from the third feed portion (151) (e.g., the third feed portion (151) of FIG. 4) and radiated toward the lower left side of the main area (102).

[0105] According to one embodiment, a third ground portion (155) included in the third antenna (150) (e.g., the third ground portion (155) of FIG. 4) is positioned outside the main area (102) with respect to the third auxiliary line (L3) (e.g., the third auxiliary line (L3) of FIG. 4), and as the shape of the first communication board (101) is formed in a "T" shape, the third radiation signal (R3) can be radiated toward the lower left side of the main area (102).

[0106] According to one embodiment, the second radiation signal (R2) and the third radiation signal (R3) may be radiated so as to be orthogonal to each other. For example, the angle formed by the second radiation signal (R2) and the third radiation signal (R3) may be approximately 90 degrees.

[0107] According to one embodiment, the isolation between the second antenna (140) and the third antenna (150) can be secured above a critical level by the second radiation signal (R2) and the third radiation signal (R3) being orthogonal to each other. As a result, interference between the second radiation signal (R2) and the third radiation signal (R3) radiated from the second antenna (140) and the third antenna (150), respectively, can be reduced, and the antenna performance of the first communication assembly (100) can be improved.

[0108] According to one embodiment, by designing the arrangement between the first communication substrate (101) and the second antenna (140) and the third antenna (150), isolation between antennas can be secured without a separate configuration (e.g., metal structure), and the performance of the communication assembly (100) can be improved.

[0109] FIGS. 6a, 6b, and 6c are drawings illustrating the radiation patterns of electrical signals radiated from a first antenna to a third antenna (e.g., the first antenna (130), the second antenna (140), and the third antenna (150) of FIG. 4) included in a first communication assembly (e.g., the first communication assembly (100) of FIG. 3) according to various embodiments.

[0110] FIG. 7 is a table showing mutual isolation between first to third antennas (130, 140, 150) included in a first communication assembly (100) according to various embodiments.

[0111] FIG. 6 illustrates the radiation pattern when the first to third antennas (130, 140, 150) radiate electromagnetic waves corresponding to the frequency band of 2.4 GHz, and FIG. 7 is a table illustrating the isolation between two antennas among the first to third antennas (130, 140, 150) when the first to third antennas (130, 140, 150) radiate electromagnetic waves corresponding to the frequency band of 2.4 GHz.

[0112] The embodiments of FIGS. 6 and 7 can be optionally combined with the embodiments of FIGS. 1 to 5.

[0113] FIG. 6a illustrates the radiation pattern of a signal (e.g., second radiation signal (R2)) radiated from a second antenna (140), FIG. 6b illustrates the radiation pattern of a signal (e.g., first radiation signal (R1)) radiated from a first antenna (130), and FIG. 6c illustrates the radiation pattern of a signal (e.g., third radiation signal (R3)) radiated from a third antenna (150).

[0114] For example, the radiation pattern illustrated in FIGS. 6a, 6b, and 6c is a radiation pattern that reflects all electromagnetic waves formed in the feed portions (e.g., the second feed portion (141), the third feed portion (151)) and ground portions (e.g., the second ground portion (145), the third ground portion (155)) of each antenna (e.g., the first antenna (130), the second antenna (140), the third antenna (150)) at each antenna (e.g., the first applied current, the second applied current, the third applied current in FIG. 5) by the current applied from the circuit board (e.g., the first communication board (101) in FIG. 5) to each antenna (e.g., the first applied current, the second applied current, the third applied current in FIG. 5). For example, each radiation pattern (R2, R3) shown in FIG. 6a and 6c represents a radiation pattern symmetric with respect to the first antenna (130) by the current applied from the first communication substrate (101) to the second antenna (140) and the third antenna (150), respectively, being orthogonal to each other.

[0115] According to one embodiment, in FIG. 6b, the first radiated signal (R1) may be radiated generally to the left or right (e.g., in the +X-axis or -X-axis direction of FIG. 4) relative to the first antenna (130). For example, the first radiated signal (R1) may be radiated approximately in the +90-degree or -90-degree direction from the center of the first antenna (130).

[0116] According to one embodiment, in FIG. 6a, the second radiation signal (R2) may be radiated generally toward the lower right (or upper left) of the main area (e.g., the main area (102) in FIG. 4) relative to the second antenna (140). For example, the second radiation signal (R2) may be radiated approximately at +60 degrees or -120 degrees from the center of the second antenna (140).

[0117] According to one embodiment, in FIG. 6b, the third radiation signal (R3) may be radiated generally toward the lower left (or upper right) of the main area (102) relative to the third antenna (150). For example, the third radiation signal (R3) may be radiated approximately at +120 degrees or -60 degrees from the center of the third antenna (150).

[0118] According to one embodiment, the second radiation signal (R2) and the third radiation signal (R3) may be radiated so as to be orthogonal to each other. As a result, a certain degree of isolation between the second antenna (140) and the third antenna (150) is secured, and signal interference between the second radiation signal (R2) radiated from the second antenna (140) and the third radiation signal (R3) radiated from the third antenna (150) can be reduced. The antenna performance of the first communication assembly (100) can be improved.

[0119] Referring to FIG. 7, the illustrated table illustrates the isolation between antennas according to the arrangement structure between a first communication substrate (e.g., the first communication substrate (101) of FIG. 4) included in the first communication assembly (100) and a first to third antenna (130, 140, 150) disposed on the first communication substrate (101). For example, the values ​​listed in the illustrated table indicate the isolation between two different antennas among the first to third antennas (130, 140, 150).

[0120] According to one embodiment, the isolation between the first antenna (130) and the second antenna (140) can be set to 15 dB or more.

[0121] According to one embodiment, the isolation between the first antenna (130) and the third antenna (150) can be set to 15 dB or more.

[0122] According to one embodiment, the isolation between the second antenna (140) and the third antenna (150) can be set to 13 dB or more.

[0123] According to one embodiment, the first communication substrate (101) is formed in a "T" shape, and the first to third antennas (130, 140, 150) are respectively placed in the main area (102) of the first communication substrate (101), the first area (e.g., the first area (103) of FIG. 4), and the second area (e.g., the second area (104) of FIG. 4), thereby ensuring that the first to third antennas (130, 140, 150) secure isolation greater than a critical level and reduce the degradation of radiation performance between adjacent antennas. As a result, the separation distance between the first to third antennas (130, 140, 150) included in the first communication assembly (100) is secured at the lowest level, while ensuring isolation between antennas, thereby improving antenna performance without the installation of a separate structure.

[0124] According to one embodiment, the first communication assembly (100) implements miniaturization of the first communication assembly (100) based on the "T" shape of the first communication substrate (101) and the arrangement of the first to third antennas (130, 140, 150), and by improving antenna performance, the display device of the present disclosure (e.g., the display device (1) of FIG. 1) can improve connectivity with an external device. As a result, the display device (1) can smoothly transmit and receive data with an external device, and the quality of voice output to the display device (1) or the screen displayed on the display device (1) can be improved.

[0125] A display device (1) according to one embodiment of the present disclosure may provide a communication assembly (e.g., the first communication assembly (100) of FIG. 3) with improved antenna performance to improve connectivity with an external device.

[0126] A display device (1) according to one embodiment of the present disclosure can provide a communication assembly (100) with improved antenna performance while achieving lightweight and miniaturization.

[0127] A display device (1) according to one embodiment of the present disclosure can provide a communication assembly (100) that secures isolation between antennas (e.g., the first antenna (130), the second antenna (140), and the third antenna (150) of FIG. 4) and reduces interference between radiated signals.

[0128] A display device (1) according to one embodiment of the present disclosure may provide a communication assembly (100) that improves antenna performance through the shape of a substrate (e.g., the first communication substrate (101) of FIG. 4) and the arrangement structure of an antenna placed on the substrate, without including a separate metal structure to secure isolation.

[0129] The effects obtainable from the present disclosure are not limited to those mentioned above, and other unmentioned effects will be clearly understood from the description above by those skilled in the art to which the present disclosure belongs.

[0130] A display device (1) according to one embodiment of the present disclosure may include a display panel (10) and a communication assembly (100). The communication assembly (100) may include a "T" shaped communication substrate (101) comprising a main area (102) and a first area (103) and a second area (104) respectively disposed on both sides of the main area (102), a first antenna (140) disposed on the surface of the first area (103), and a second antenna (150) disposed on the same plane as the first area (103) and disposed on the surface of the second area (104).

[0131] According to one embodiment, the first antenna (140) and the second antenna may be arranged symmetrically with respect to the center of the main area (102).

[0132] According to one embodiment, the first antenna (140) may include a first feed portion (141) and a first ground portion (145). The second antenna (150) may include a second feed portion (151) and a second ground portion (155).

[0133] According to one embodiment, the first radiation signal radiated from the first antenna (140) and the second radiation signal radiated from the second antenna (150) may be orthogonal to each other.

[0134] According to one embodiment, the first direction in which the first grounding portion (145) faces and the second direction in which the second grounding portion (155) faces may be 180 degrees.

[0135] According to one embodiment, the first frequency band of the first antenna (140) may be the same as or different from the second frequency band of the second antenna.

[0136] According to one embodiment, the first frequency band may be 2.4 GHz or 5.0 GHz.

[0137] According to one embodiment, the second frequency band may be 2.4 GHz or 5.0 GHz.

[0138] According to one embodiment, the main area (102) may have a first side (1023) connected to one end of the first area (103) and orthogonal to said end, and a second side (1025) connected to one end of the second area (104) and orthogonal to said end. One end of the first ground portion (145) may be located outside the center of the main area with respect to the first side (1023). One end of the second ground portion (155) may be located outside the center of the main area with respect to the second side (1025).

[0139] According to one embodiment, the top (1021) of the main area (102), the top (1031) of the first area (103), and the top (1041) of the second area (104) may be arranged side by side.

[0140] According to one embodiment, the communication assembly (100) may be placed on the back surface of the display panel (10).

[0141] According to one embodiment, a portion of the communication assembly (100) may be positioned to be exposed outwardly relative to an adjacent side of the display panel (10).

[0142] According to one embodiment, the portion of the area may include the top (1021) of the main area (102) arranged side by side, the top (1031) of the first area (103), and the top (1041) of the second area (104).

[0143] A communication assembly (100) according to one embodiment of the present disclosure may include a "T" shaped communication board (101) comprising a main area (102) and a first area (103) and a second area (104) respectively disposed on both sides of the main area (102), a first antenna (140) disposed on the surface of the first area (103), and a second antenna (150) disposed on the same plane as the first area (103) and disposed on the surface of the second area (104). The size of the first area (103) and the size of the second area (104) may be smaller than the size of the main area (102). The top (1021) of the main area (102), the top (1031) of the first area (103), and the top (1041) of the second area (104) may be disposed side by side.

[0144] According to one embodiment, the first antenna (140) and the second antenna may be arranged symmetrically with respect to the center of the main area (102).

[0145] According to one embodiment, the first antenna (140) may include a first feed portion (141) and a first ground portion (145). The second antenna (150) may include a second feed portion (151) and a second ground portion (155).

[0146] According to one embodiment, the first radiation signal radiated from the first antenna (140) and the second radiation signal radiated from the second antenna (150) may be orthogonal to each other.

[0147] According to one embodiment, the first direction in which the first grounding portion (145) faces and the second direction in which the second grounding portion (155) faces may be 180 degrees.

[0148] According to one embodiment, the first frequency band of the first antenna (140) may be the same as or different from the second frequency band of the second antenna.

[0149] According to one embodiment, the main area (102) may have a first side (1023) connected to one end of the first area (103) and orthogonal to said end, and a second side (1025) connected to one end of the second area (104) and orthogonal to said end. One end of the first ground portion (145) may be located outside the center of the main area with respect to the first side (1023). One end of the second ground portion (155) may be located outside the center of the main area with respect to the second side (1025).

[0150] Although the present specification has been described with reference to various embodiments, such embodiments are illustrative and should not be construed as limiting. Those skilled in the art will understand that various modifications, alternatives, and / or variations of the embodiments are possible without departing from the true technical spirit and the full technical scope of the present specification (including the appended claims and their equivalents). Furthermore, it will be understood that the embodiments described in the present specification may be used in combination with other embodiments.

Claims

1. In a display device (1), Display panel (10); and It includes a communication assembly (100), The above communication assembly (100) is, A “T”-shaped communication board (101) comprising a main area (102) and a first area (103) and a second area (104) respectively disposed on both sides of the main area (102); A first antenna (140) disposed on the surface of the first region (103); and A display device (1) comprising a second antenna (150) disposed on the same plane as the first region (103) and on the surface of the second region (104).

2. In Paragraph 1, A display device (1) in which the first antenna (140) and the second antenna are symmetrically arranged with respect to the center of the main area (102).

3. In Paragraph 1, The first antenna (140) includes a first feed portion (141) and a first ground portion (145), and The second antenna (150) comprises a second feed portion (151) and a second ground portion (155), in a display device (1).

4. In Paragraph 3, A display device (1) wherein the first antenna (140) is configured to radiate a first radiation signal, the second antenna (150) is configured to radiate a second radiation signal, and the first and second radiation signals are orthogonal to each other.

5. In Paragraph 3, A display device (1) in which the first direction in which the first grounding portion (145) faces and the second direction in which the second grounding portion (155) faces are 180 degrees relative to each other.

6. In any one of paragraphs 1 through 5, A display device (1) in which the first frequency band of the first antenna (140) is the same as or different from the second frequency band of the second antenna.

7. In Paragraph 3, The above main area (102) is connected to one end of the first area (103) and has a first side (1023) that is orthogonal to the one end, and a second side (1025) that is connected to one end of the second area (104) and is orthogonal to the one end. One end of the first grounding portion (145) is located outside the center of the main area (102) with respect to the first side (1023), and A display device (1) in which one end of the second ground portion (155) is located outside the center of the main area (102) with respect to the second side (1025).

8. In Paragraph 1, A display device (1) in which the top (1021) of the main area (102), the top (1031) of the first area (103), and the top (1041) of the second area (104) are arranged side by side.

9. In a communication assembly (100), A “T”-shaped communication board (101) comprising a main area (102) and a first area (103) and a second area (104) respectively disposed on both sides of the main area (102); A first antenna (140) disposed on the surface of the first region (103); and It includes a second antenna (150) disposed on the same plane as the first region (103) and on the surface of the second region (104), and The size of the first area (103) and the size of the second area (104) are smaller than the size of the main area (102), A communication assembly (100) in which the top (1021) of the main area (102), the top (1031) of the first area (103), and the top (1041) of the second area (104) are arranged side by side.

10. Regarding Paragraph 9, A communication assembly (100) in which the first antenna (140) and the second antenna are arranged symmetrically with respect to the center of the main area (102).

11. Regarding Paragraph 9, The first antenna (140) includes a first feed portion (141) and a first ground portion (145), and The second antenna (150) comprises a second feed portion (151) and a second ground portion (155), in a communication assembly (100).

12. In Paragraph 11, A communication assembly (100) wherein the first antenna (140) is configured to radiate a first radiation signal and the second antenna (150) is configured to radiate a second radiation signal, and the first and second radiation signals are orthogonal to each other.

13. In Paragraph 11, A communication assembly (100) in which the first direction in which the first grounding portion (145) faces and the second direction in which the second grounding portion (155) faces are 180 degrees relative to each other.

14. In any one of paragraphs 9 through 13, A communication assembly (100) in which the first frequency band of the first antenna (140) is the same as or different from the second frequency band of the second antenna.

15. In Paragraph 11, The above main area (102) is connected to one end of the first area (103) and has a first side (1023) that is orthogonal to the one end, and a second side (1025) that is connected to one end of the second area (104) and is orthogonal to the one end. One end of the first grounding portion (145) is located outside the center of the main area (102) with respect to the first side (1023), and A communication assembly (100) in which one end of the second grounding portion (155) is located outside the center of the main area (102) with respect to the second side (1025).

Images