Display device
Patent Information
- Application Number
- KR1020267025908
- Authority / Receiving Office
- KR · KR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2026-09-17
Smart Images
Figure PCT00001_ABST
Abstract
Description
Technology Field
[0001] The present disclosure relates to a display device. Background Technology
[0002] As the information society develops, the demand for display devices is increasing in various forms; in response to this, various display devices such as LCD (Liquid Crystal Display Device), OLED (Organic Light Emitting Diodes), and Micro LED are being researched and used in recent years.
[0003] Among these, an LCD panel is equipped with a TFT substrate and a color substrate facing each other with a liquid crystal layer in between, and can display an image using light provided from a backlight unit. Additionally, an OLED panel can display an image by depositing a self-emissive organic layer on a substrate having a transparent electrode formed thereon. In particular, a display device equipped with an OLED panel has the advantage of being able to be implemented as an ultra-thin form factor because it does not require a backlight unit.
[0004] The control box can be spaced apart from the display device and used adjacent to the user. The control box can provide various information to the display device. For example, the control box may be an AV box. The control box can exchange information wirelessly or via wired connection with a display head equipped with a display panel that displays images.
[0005] Recently, much research has been conducted on the connectivity of such display devices. The problem to be solved
[0006] The present disclosure aims to solve the aforementioned problems and other problems.
[0007] Another objective may be to provide a display device equipped with a wireless communication module.
[0008] Another objective may be to provide a method to reduce power consumption while ensuring wireless communication performance between the communication module of the display and the communication module of the control box above a certain level.
[0009] Another objective may be to provide a control method for turning off the power of an antenna module with relatively low signal reception sensitivity among a pair of antenna modules of a display. means of solving the problem
[0010] According to one aspect of the present disclosure for achieving the above or other purposes, a display device may include: a display panel; a frame located behind the display panel and to which the display panel is coupled; a communication module adjacent to one side of the frame and coupled to the frame; a control unit for controlling the communication module; and a control box that wirelessly transmits and receives signals with the communication module, and the communication module may include: a first antenna module; and a second antenna module spaced apart from the first antenna module, and the control unit may turn on the power of at least one of the first antenna module or the second antenna module. Effects of the invention
[0011] The effects of the display device according to the present disclosure are described as follows.
[0012] According to at least one of the embodiments of the present disclosure, a display device having a wireless communication module can be provided.
[0013] According to at least one of the embodiments of the present disclosure, a method can be provided to reduce power consumption while ensuring wireless communication performance between a communication module of a display and a communication module of a control box at a certain level or higher.
[0014] According to at least one of the embodiments of the present disclosure, a control method for turning off the power of an antenna module having a relatively low signal reception sensitivity among a pair of antenna modules of a display can be provided.
[0015] Further scopes of the applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure are clearly understood by those skilled in the art, specific embodiments, such as the detailed description and preferred embodiments of the present disclosure, should be understood as being given merely as examples. Brief explanation of the drawing
[0016] FIGS. 1 to 22 are drawings illustrating examples of display devices according to embodiments of the present disclosure. Specific details for implementing the invention
[0017] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted.
[0018] The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles.
[0019] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.
[0020] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.
[0021] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.
[0022] Singular expressions include plural expressions unless the context clearly indicates otherwise.
[0023] In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.
[0024] The directional indications of Up (U), Down (D), Left (Le), Right (Ri), Front (F), and Rear (R) shown in the drawings are for convenience of explanation only and do not limit the technical concepts disclosed in this specification.
[0025] Referring to FIG. 1, the display device (1) may include a display panel (10). The display panel (10) may display an image.
[0026] The display device (1) may include a first long side (LS1), a second long side (LS2) opposite to the first long side (LS1), a first short side (SS1) adjacent to the first long side (LS1) and the second long side (LS2), and a second short side (SS2) opposite to the first short side (SS1). Meanwhile, for convenience of explanation, the lengths of the first and second long sides (LS1, LS2) are depicted and described as being longer than the lengths of the first and second short sides (SS1, SS2), but it is also possible for the lengths of the first and second long sides (LS1, LS2) to be approximately the same as the lengths of the first and second short sides (SS1, SS2).
[0027] The direction parallel to the long sides (LS1, LS2) of the display device (1) may be referred to as the left-right direction or the first direction (DR1). The direction parallel to the short sides (SS1, SS2) of the display device (1) may be referred to as the up-down direction or the second direction (DR2). The direction perpendicular to the long sides (LS1, LS2) and short sides (SS1, SS2) of the display device (1) may be referred to as the front-back direction or the third direction (DR3).
[0028] The direction in which the display panel (10) displays an image can be referred to as the front (F, z), and the opposite direction can be referred to as the rear (R). The first long side (LS1) can be referred to as the top (U, y), and the second long side (LS2) can be referred to as the bottom (D). The first short side (SS1) can be referred to as the left (Le, x), and the second short side (SS2) can be referred to as the right (Ri).
[0029] The first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) can be referred to as edges of the display device (1). Additionally, the point where the first long side (LS1), the second long side (LS2), the first short side (SS1), and the second short side (SS2) meet each other can be referred to as a corner.
[0030] For example, the point where the first short side (SS1) and the first long side (LS1) meet can be called the first corner (C1). The point where the first long side (LS1) and the second short side (SS2) meet can be called the second corner (C2). The point where the second short side (SS2) and the second long side (LS2) meet can be called the third corner (C3). The point where the second long side (LS2) and the first short side (SS1) meet can be called the fourth corner (C4).
[0031] Referring to FIGS. 1 and 2, the display device (1) may include a display panel (10), a frame (20), a side frame (30), and a back cover (40).
[0032] The display panel (10) can form the front surface of the display device (1) and can display an image forward. For example, the display panel (10) may be an OLED panel, an LCD panel, or an LED panel. However, the types of display panels applicable to the present disclosure are not limited thereto. The display panel (10) can output an image by dividing the image into multiple pixels and matching the color, brightness, and saturation for each pixel. The display panel (10) may be divided into an active area where the image is displayed and a de-active area where the image is not displayed. The display panel (10) can generate light corresponding to the color red, green, or blue according to a control signal.
[0033] The frame (20) may be located at the rear of the display panel (10), and the display panel (10) may be coupled to the frame (20). For example, the frame (20) may include a metal material. The frame (20) may be referred to as a module cover (20) or a cover bottom (20).
[0034] The side frame (30) may extend along the perimeter of the frame (20). The side frame (30) may be attached to the frame (20) and may cover the side of the display panel (10) and the side of the frame (20). The side frame (30) may be referred to as a guide panel (30).
[0035] The back cover (40) may be located at the rear of the frame (20) and may be attached to the frame (20). The back cover (40) may be made of plastic or metal.
[0036] Referring to FIG. 3, boards (50) may be located at the rear of the frame (20) and may be coupled to the frame (20). Electronic components may be mounted on the boards (50). The board (50) may be a Printed Circuit Board (PCB) and may be electrically connected to the electronic components of a display device.
[0037] A power supply board (51) can provide power to each component of the display device. A timing controller board (52) can provide a video signal to the display panel (10). A main board (53) can control the display device.
[0038] The source PCB (11, see FIG. 2) may be located on the rear of the display panel (10) adjacent to the lower edge of the display panel (10). The cable (C) may pass through a cable hole (CH) formed in the lower part of the frame (20) and may connect the source PCB (11) and the timing controller board (52). Accordingly, the timing controller board (52) may provide digital video data and timing control signals to the source PCB (11) through the cable (C). The cable (C) may be a Flexible Flat Cable (FFC).
[0039] Meanwhile, the speaker (not shown) can be mounted on the frame (20) and can output sound to the outside.
[0040] Referring to FIG. 4, the control box (200) may be spaced apart from the display device (1). The control box (200) may be referred to as a set-top box (200, set-top box). The control box (200) may wirelessly exchange information with the display device (1). The communication module of the control box (200) may wirelessly communicate with the communication module (100) of the display device (1). At least a portion of the communication module (100) may protrude outward from the edge of the display device (1), and the communication module (100) may wirelessly communicate smoothly with the communication module of the control box (200).
[0041] The stability of wireless communication between the control box (200) and the display device (1) may vary depending on the relative positions of the control box (200) and the display device (1). The display device (1) may be located at a fixed position to maintain a certain distance from the user. The control box (200) needs to have a high degree of freedom in its location for user convenience.
[0042] Meanwhile, the control box (200) may be a component of the display device (1). In this case, the display device (1), excluding the control box (200), may be referred to as the display (1), the display unit (1), or the head (1). The display (1) may include a display panel (10).
[0043] Referring to FIG. 5, the shield plate (520) can be attached to the rear of the timing controller board (52). The first board (54) can be spaced downward from the timing controller board (52) and attached to the rear of the frame (20). The second board (53) can be spaced to the right from the timing controller board (52) and attached to the rear of the frame (20).
[0044] The communication module (100) can receive compressed video and / or sound data from the communication module of the control box (200, see FIG. 4). The first board (54) can decompress the video and / or sound data received from the communication module (100), convert it, and provide it to the second board (53). The second board (53) can provide the data received from the first board (54) to the display panel (10, see FIG. 4) through the timing controller board (52). For example, the first board (54) may be a WAV (waveform audio format) board or a WAV22 board, and the second board (53) may be an AMP (amplifier) board. For example, the second board (53) may be a main board (53). The communication module (100) may be referred to as a communication unit (100) or a communication box (100).
[0045] Referring to FIGS. 6 and 7, the base (55) may be adjacent to the lower edge (32) of the side frame (30) and may be detachably coupled to the rear of the frame (20). The lower fixing parts (26a, 26b) and the upper fixing parts (24a, 24b) may protrude rearward from the frame (20) and may penetrate the base (55).
[0046] The communication module (100) may include a front cover (110), a rear cover (120), a pair of antenna modules (130, 140), and an IR module (150, Infrared module).
[0047] The front cover (110) may be located at the rear of the base (55) and may be detachably coupled to the base (55). The front cover (110) may be opened to the rear. A portion of the front cover (110) may protrude downward from the lower edge (32) of the side frame (30). The front cover (110) may be a plastic injection molded part. The lower fixing part (26a) may penetrate the front cover (110). Housing fixing parts (116a, 116b) may protrude rearward from the inner surface of the front cover (110).
[0048] The rear cover (120) may be located at the rear of the front cover (110) and may be detachably coupled to the front cover (110). The rear cover (120) may cover the open rear surface of the front cover (110). The rear cover (120) may be a plastic injection molded part. Pins (56a, 56b, pins) may protrude rearward from the base (55) and may penetrate the rear cover (120). Fastening members such as screws may penetrate the rear cover (120) and may be fastened to the lower fixing part (26a) of the frame (20) and the lower fixing part (56c) of the base (55). Fastening members such as screws may penetrate the rear cover (120) and may be fastened to the housing fixing parts (116a, 116b) of the front cover (110).
[0049] The first antenna module (130) and the second antenna module (140) may be located between the front cover (110) and the rear cover (120). The substrate (132) of the first antenna module (130) and the substrate (142) of the second antenna module (140) may be a PCB (Printed Circuit Board). Each of the substrate (132) of the first antenna module (130) and the substrate (142) of the second antenna module (140) may be aligned with the front of the display panel (10). That is, the substrates (132, 142) may be aligned with the xy plane. The first antenna module (130) may be adjacent to the left side of the front cover (110) and may be referred to as the left antenna module (130). The second antenna module (140) may be adjacent to the right side of the front cover (110) and may be referred to as the right antenna module (140). The antenna modules (130, 140) may be referred to as antenna modules (130, 140) or antennas (130, 140).
[0050] The first antenna section (134) may be formed on the front surface of the substrate (132) of the first antenna module (130). The first antenna section (134) may be a patch antenna. The first antenna section (134) may include patches (P) and feed sections connected to the patches (P). For example, the number of patches (P) of the first antenna section (134) may be 12. For example, the first antenna section (134) may detect horizontal polarization.
[0051] The second antenna section (135) may be formed on the lower edge of the substrate (132) of the first antenna module (130). The second antenna section (135) may be a monopole antenna. The second antenna section (135) may include a plurality of monopoles (MP). The monopoles (MP) may be formed along the lower edge of the substrate (132). For example, the number of monopoles (MP) may be 10. For example, the second antenna section (135) may detect vertical polarization.
[0052] The third antenna section (136) may be formed on the left side of the substrate (132) of the first antenna module (130). The third antenna section (136) may be a dipole antenna. The third antenna section (136) may include a plurality of dipoles (DP). The dipoles (DP) may be formed along the left side of the substrate (132). For example, the number of dipoles (DP) may be three. For example, the third antenna section (136) may detect horizontal polarization.
[0053] The fourth antenna section (137) may be formed on the right side of the substrate (132) of the first antenna module (130). The fourth antenna section (137) may be a dipole antenna. The fourth antenna section (137) may include a plurality of dipoles (DP). The dipoles (DP) may be formed along the right side of the substrate (132). For example, the number of dipoles (DP) may be three. For example, the fourth antenna section (137) may detect horizontal polarization.
[0054] The first antenna section (144) may be formed on the front surface of the substrate (142) of the second antenna module (140). The first antenna section (144) may be a patch antenna. The first antenna section (144) may include patches (P) and feed sections connected to the patches (P). For example, the number of patches (P) of the first antenna section (144) may be 12. For example, the first antenna section (144) may detect horizontal polarization.
[0055] The second antenna section (145) may be formed on the lower edge of the substrate (142) of the second antenna module (140). The second antenna section (145) may be a monopole antenna. The second antenna section (145) may include a plurality of monopoles (MP). The monopoles (MP) may be formed along the lower edge of the substrate (142). For example, the number of monopoles (MP) may be 10. For example, the second antenna section (145) may detect horizontal polarization.
[0056] The third antenna section (146) may be formed on the left side of the substrate (142) of the second antenna module (140). The third antenna section (146) may be a dipole antenna. The third antenna section (146) may include a plurality of dipoles (DP). The dipoles (DP) may be formed along the left side of the substrate (142). For example, the number of dipoles (DP) may be three. For example, the third antenna section (146) may detect horizontal polarization.
[0057] The fourth antenna section (147) may be formed on the right side of the substrate (142) of the second antenna module (140). The fourth antenna section (147) may be a dipole antenna. The fourth antenna section (147) may include a plurality of dipoles (DP). The dipoles (DP) may be formed along the right side of the substrate (142). For example, the number of dipoles (DP) may be three. For example, the fourth antenna section (147) may detect horizontal polarization.
[0058] For example, the first thermal pad (131) may include a material with excellent thermal conductivity and may be coupled to or attached to the rear surface of the first antenna module (130). For example, the second thermal pad (141) may include a material with excellent thermal conductivity and may be coupled to or attached to the rear surface of the second antenna module (140).
[0059] The IR module (150) may be located between the first antenna module (130) and the second antenna module (140). The IR module (150) may include a controller. The IR module (150) may include a PCB (Printed Circuit Board). An input section (160) may be mounted on the lower side of the IR module (150). The IR module (150) may be referred to as an infrared transmitting and receiving unit (150).
[0060] Referring to FIG. 8, the communication module (100) may include a front cover (110), a rear cover (120), a first antenna module (130), a second antenna module (140), an IR module (150, Infrared module), and an inner plate (170).
[0061] The inner plate (170) may be attached to or fixed to the front of the rear cover (120). The rear cover (120) may be a plastic injection molded product. The inner plate (170) may include a metal material and may be referred to as a heat sink (170). The inner plate (170) may include a center plate (171), a first connecting plate (172), and a second connecting plate (173). The first connecting plate (172) may be opposite to the second connecting plate (173) with respect to the center plate (171).
[0062] The IR module (150) may be located between the first connecting plate (172) and the second connecting plate (173), and may be coupled to or fixed to the rear cover (120). The IR module (150) may be located below the middle plate (171). The IR module (150) may be referred to as an infrared transmitting and receiving unit (150).
[0063] The first antenna module (130) may be coupled to or fixed to the first connecting plate (172). The second antenna module (140) may be coupled to or fixed to the second connecting plate (173). The substrate (132) of the first antenna module (130) and the substrate (142) of the second antenna module (140) may be a PCB (Printed Circuit Board). Each of the substrate (132) of the first antenna module (130) and the substrate (142) of the second antenna module (140) may be perpendicular to the front of the display panel (10). That is, the substrates (132, 142) may be parallel to the xz plane. The first antenna module (130) may be referred to as the left antenna module (130), and the second antenna module (140) may be referred to as the right antenna module (140). The antenna modules (130, 140) may be referred to as antenna units (130, 140) or antennas (130, 140).
[0064] The front cover (110) can be attached to the rear cover (120). The front cover (110) can cover the first antenna module (130), the second antenna module (140), and / or the IR module (150). The front cover (110) may be a plastic injection molded product.
[0065] Referring to FIG. 9, the first antenna module (130) may include a substrate (132), a cover frame (133), a first antenna section (134), a second antenna section (135), a third antenna section (136), a fourth antenna section (137), a dummy antenna section (138), and a fastening hole (h).
[0066] The substrate (132) may be a PCB in the shape of a horizontal plate. The cover frame (133) may cover a portion of the lower surface of the substrate (132), and an opening (133P) may be formed in the center of the cover frame (133).
[0067] The first antenna section (134) may be formed on the lower surface of the substrate (132) and may be exposed to the outside through an opening (133P) of the cover frame (133). The second antenna section (135) may be located on the first long side of the substrate (132). The third antenna section (136) may be located on the first short side of the substrate (132), and the fourth antenna section (137) may be located on the second short side of the substrate (132). The third antenna section (136) may be opposite to the fourth antenna section (137) with respect to the first antenna section (134).
[0068] The first antenna section (134) may be a patch antenna. The first antenna section (134) may include a plurality of patches (P) and a plurality of feed sections (S). The patches (P) may be circular electrodes. The patches (P) may be arranged sequentially along the longitudinal direction of the substrate (132) while maintaining a constant spacing from one another. For example, there may be 12 patches (P). The feed sections (S) may be formed on the lower surface of the substrate (132) adjacent to the patches (P). The feed sections (S) may be electrically connected to the patches (P). For example, there may be 12 feed sections (S). For example, the first antenna section (134) may detect vertical polarization.
[0069] The second antenna section (135) may be a dipole antenna. The second antenna section (135) may be formed along the first long side of the substrate (132). The second antenna section (135) may include a plurality of dipoles (DP). The plurality of dipoles (DP) may be formed sequentially along the first long side of the substrate (132). For example, the number of dipoles (DP) may be 14. For example, the second antenna section (135) may detect horizontal polarization.
[0070] The third antenna section (136) may be a dipole antenna. The third antenna section (136) may be formed along the first short side of the substrate (132). The third antenna section (136) may include a plurality of dipoles (DP). The plurality of dipoles (DP) may be formed sequentially along the first short side of the substrate (132). For example, the number of dipoles (DP) may be three. For example, the third antenna section (136) may detect horizontal polarization.
[0071] The fourth antenna (137) may be a dipole antenna. The fourth antenna section (137) may be formed along the second short side of the substrate (132). The fourth antenna section (137) may include a plurality of dipoles (DP). The plurality of dipoles (DP) may be formed sequentially along the second short side of the substrate (132). For example, the number of dipoles (DP) may be three. For example, the fourth antenna section (137) may detect horizontal polarization.
[0072] A dummy antenna section (138) may be formed on a cover frame (133). The dummy antenna section (138) may have a plurality of rectangular patches or electrodes. The plurality of patches or electrodes may be arranged sequentially along the longitudinal direction of the substrate (132). The dummy antenna section (148) may reduce noise.
[0073] Referring to FIG. 10, the second antenna module (140) may include a substrate (142), a cover frame (143), a first antenna part (144), a second antenna part (145), a third antenna part (146), a fourth antenna part (147), and a fastening hole (h).
[0074] The substrate (142) may be a PCB in the shape of a horizontal plate. The cover frame (143) may cover a portion of the lower surface of the substrate (142), and an opening (143P) may be formed in the center of the cover frame (143).
[0075] The first antenna section (144) may be formed on the lower surface of the substrate (142) and may be exposed to the outside through an opening (143P) of the cover frame (143). The second antenna section (145) may be located on the first long side of the substrate (142). The third antenna section (146) may be located on the first short side of the substrate (142), and the fourth antenna section (147) may be located on the second short side of the substrate (142). The third antenna section (146) may be opposite to the fourth antenna section (147) with respect to the first antenna section (144).
[0076] The first antenna section (144) may be a patch antenna. The first antenna section (144) may include a plurality of patches (P) and a plurality of feed sections (S). The patches (P) may be circular electrodes. The patches (P) may be arranged sequentially along the longitudinal direction of the substrate (142) while maintaining a constant spacing from one another. For example, there may be 12 patches (P). The feed sections (S) may be formed on the lower surface of the substrate (142) adjacent to the patches (P). The feed sections (S) may be electrically connected to the patches (P). For example, there may be 12 feed sections (S). For example, the first antenna section (144) may detect horizontal polarization.
[0077] The second antenna section (145) may be a dipole antenna. The second antenna section (145) may be formed along the first long side of the substrate (142). The second antenna section (145) may include a plurality of dipoles (DP). The plurality of dipoles (DP) may be formed sequentially along the first long side of the substrate (142). For example, the number of dipoles (DP) may be 14. For example, the second antenna section (145) may detect horizontal polarization.
[0078] The third antenna section (146) may be a dipole antenna. The third antenna section (146) may be formed along the first short side of the substrate (142). The third antenna section (146) may include a plurality of dipoles (DP). The plurality of dipoles (DP) may be formed sequentially along the first short side of the substrate (142). For example, the number of dipoles (DP) may be three. For example, the third antenna section (146) may detect horizontal polarization.
[0079] The fourth antenna section (174) may be a dipole antenna. The fourth antenna section (147) may be formed along the second short side of the substrate (142). The fourth antenna section (147) may include a plurality of dipoles (DP). The plurality of dipoles (DP) may be formed sequentially along the second short side of the substrate (142). For example, the number of dipoles (DP) may be three. For example, the fourth antenna section (147) may detect horizontal polarization.
[0080] Referring to FIGS. 11 and 12, a case (201) can form the exterior of a control box (200), and a plurality of plates (210, 220, 230) can be stacked inside the case (201). First columns (201P) can support a second plate (220) on a first plate (210). Second columns (220P) can support a third plate (230) on a second plate (220). Electronic components such as a power supply unit and a main board can be placed between the plurality of plates (210, 220, 230).
[0081] The rotating plate (203) can be coupled to the third plate (230) so as to be rotatable about the rotation axis (Ax). The rotation column (2031) of the rotating plate (203) can be fixed to a rotation shaft protruding from the center of the third plate (230).
[0082] The communication module (250) may be located between the third plate (230) and the rotating plate (203) and may be fixed to the rotating plate (203). The communication module (250) may be adjacent to the perimeter of the rotating plate (203).
[0083] Referring to FIG. 13, the communication module (250) may include antenna modules (251, 252), a heat sink (253), a cooling fan (257), a dial (205), and brackets (254, 255). The heat sink (253) may have the shape of an elongated rectangular column. The first antenna module (251) and the second antenna module (252) may be attached to one side of the heat sink (253). Alternatively, only one antenna module may be attached to one side of the heat sink (253).
[0084] An antenna section (250A) may be formed on the front of each of the first antenna module (251) and the second antenna module (252). The antenna section (250A) may be a patch antenna. The antenna section (250A) may include patches (P) and feed sections connected to the patches (P). For example, the number of patches (P) of the antenna section (250A) may be 32. For example, the antenna section (250A) may detect horizontal polarization.
[0085] A cooling fan (275) can be connected to one side of a heat sink (253) and can cause a flow of air passing through the heat sink (253).
[0086] The first bracket (254) can be coupled to the heat sink (253), and the second bracket (255) can be pivotably coupled to the first bracket (254). The connecting shaft (A) can be located below the rotating plate (203, see FIG. 11 and 12) and can extend horizontally. The connecting shaft (A) can be installed through the first bracket (254) and the second bracket (255). The dial (205) can rotate on the connecting shaft (A). The dial (205) can be fixed to the first bracket (254), and the dial (205) and the first bracket (254) can rotate relative to the second bracket (255). The second bracket (255) can be fixed to the rotating plate (203, see FIG. 11 and 12). The dial (205) may have a fan shape, and the arc surface of the dial (205) may pass through the second bracket (255) and be exposed to the outside of the case (201, see FIG. 4).
[0087] Accordingly, the user can rotate the rotating plate (203) (rotation around the rotation axis (AX) in FIG. 12) or operate the dial (205) to pivot or tilt the communication module (250) up and down (see arrow (AW) next to the communication module (250) in FIG. 12).
[0088] Referring to FIG. 14, the communication module (250) of the control box (200) can transmit signals to the antenna sections (134, 135, 136, 137) of the first antenna module (130) and the antenna sections (144, 145, 146, 147) of the second antenna module (140) through the antenna section (250A). The signals received by the first antenna module (130) and the signals received by the second antenna module (140) can be selected or combined. That is, wireless communication between the communication module (250) of the control box (200) and the communication module (100) can utilize spatial diversity technology. That is, by receiving multiple signals and combining them, errors can be controlled, or the best signal can be selected to increase reliability. For example, the diversity gain can be about 3 dB.
[0089] The control unit (CU) of the display device (1) can be electrically connected to the first antenna module (130) and the second antenna module (140). The control unit (CU) can control whether power is supplied to each of the first antenna module (130) and the second antenna module (140). That is, the control unit (CU) can control the power ON / OFF of each of the first antenna module (130) and the second antenna module (140). The control unit (CU) can be implemented on a main board (53, see FIG. 5).
[0090] Referring to FIG. 15, the control unit (CU) can detect the sensitivity of a signal transmitted from the communication module (250) of the control box (200) and received by the first antenna module (130) and the second antenna module (140) (S10).
[0091] The control unit (CU) can determine whether the difference between the reception sensitivity of the signal received by the first antenna module (130) and the reception sensitivity of the signal received by the second antenna module (140), that is, the difference in reception sensitivity, is greater than or equal to the first reference value (a1) (S20). The reference value (a1) can be determined experimentally according to the specifications of the product, etc. For example, the reference value (a1) may be about 3 dB or more.
[0092] If the difference in reception sensitivity is less than the first reference value (a1) (S20: No), the control unit (CU) can maintain the power of the first and second antenna modules (130, 140) in an ON state (S50).
[0093] If the difference in reception sensitivity is greater than or equal to the first reference value (a1) (S20: Yes), the control unit (CU) can determine whether the difference in wireless performance is less than the second reference value (a2) depending on whether the power of the antenna module with relatively low reception sensitivity among the first and second antenna modules (130, 140) is turned OFF (S30). The reference value (a2) can be determined experimentally based on product specifications, etc. That is, the control unit (CU) can hypothetically determine whether the wireless performance when the power of the antenna module with relatively low reception sensitivity among the first and second antenna modules (130, 140) is turned OFF is not significantly different from the wireless performance when the power of both the first and second antenna modules (130, 140) is turned ON. For example, the reference value (a2) may be less than about 3 dB.
[0094] If the difference in wireless performance is greater than or equal to the second reference value (a2) (S30: No), the control unit (CU) can maintain the power of the first and second antenna modules (130, 140) in an ON state (S50).
[0095] If the difference in wireless performance is less than the second reference value (a2) (S30: yes), the control unit (CU) can turn off the power of the antenna module with lower reception sensitivity among the first and second antenna modules (130, 140) (S40).
[0096] The compression ratio of the signal transmitted from the communication module (250) of the control box (200) to the communication module (100) may be less than 1 / 6, and the signal quality may be satisfied if the signal-to-noise ratio (SNR) is 16 dB or higher. For example, among the first and second antenna modules (130, 140), the power of the first antenna module (130), which has a relatively low reception sensitivity, may be turned OFF, while the power of the second antenna module (140) may be kept ON. In this case, the signal quality may be satisfied if the signal-to-noise ratio (SNR) of the signal received by the second antenna module (140) is 16 dB or higher.
[0097] The aforementioned S10, S20, S30, S40, and S50 may be referred to as an antenna power control process (S60). The antenna power control process (S60) may be a process of selecting either 1T2R or 1T1R. Here, 1T2R may represent one transmit and two receive, and 1T1R may represent one transmit and one receive.
[0098] For example, the antenna power control process (S60) can be performed in the normal mode of the display device (1). As another example, the antenna power control process (S60) can be performed in the low-power mode of the display device (1). Here, the low-power mode is a mode in which the power consumed by the display device (1) is reduced compared to the normal mode, and can be activated when certain conditions are satisfied or by a user's request.
[0099] Referring to FIG. 16, the control box (200) may be positioned in front of the display (1), and the communication module (250) of the control box (200) may face the communication module (100) of the display (1). To this end, the rotating plate (203) of the control box (200) and the communication module (250) may be rotated or tilted toward the communication module (100) (see FIG. 12).
[0100] In this case, the antenna section formed on the front or front end of the first and second antenna modules (130, 140) of the communication module (100), namely the first antenna section (134, 144, see FIG. 7) or the second antenna section (135, 145, see FIG. 9 and 10), can receive a signal from the antenna section (250A, see FIG. 13) of the communication module (250). Meanwhile, the remaining antenna sections of the communication module (100) may be turned off because it is difficult to receive the signal from the antenna section (250A).
[0101] For example, the communication module (250) may be positioned offset in one direction from the center of the display (1). That is, the distance between the communication module (250) and the first antenna module (130) and the distance between the communication module (250) and the second antenna module (140) may be different from each other.
[0102] If the communication module (250) is located relatively closer to the first antenna module (130) than to the second antenna module (140), the sensitivity of the signal received by the first antenna module (130) may be higher than the sensitivity of the signal received by the second antenna module (140). If the difference in reception sensitivity between the first and second antenna modules (130, 140) is greater than or equal to the first reference value (a1) (e.g., S20 in FIG. 15), and the wireless performance does not drop below the second reference value (a2) even when the power of the second antenna module (140) is turned OFF (e.g., S30 in FIG. 15), the control unit (CU) may turn OFF the power of the second antenna module (140). Accordingly, the power consumption of the communication module (100) can be reduced while securing wireless performance of a certain level or higher using only the first antenna module (130).
[0103] Furthermore, power can be supplied only to the first antenna section (134, see FIG. 7) of the first antenna module (130) and not to the remaining antenna sections (135, 136, 137, see FIG. 7), or power can be supplied only to the second antenna section (135, see FIG. 9 and 10) of the first antenna module (130) and not to the remaining antenna sections (134, 136, 137, see FIG. 9 and 10), thereby minimizing the power consumption of the communication module (100).
[0104] If the communication module (250) is located relatively closer to the second antenna module (140) than to the first antenna module (130), the sensitivity of the signal received by the second antenna module (140) may be higher than the sensitivity of the signal received by the first antenna module (130). If the difference in reception sensitivity between the first and second antenna modules (130, 140) is greater than or equal to the first reference value (a1) (e.g., S20 in FIG. 15), and the wireless performance does not drop below the second reference value (a2) even when the power of the first antenna module (130) is turned OFF (e.g., S30 in FIG. 15), the control unit (CU) may turn OFF the power of the first antenna module (130). Accordingly, the power consumption of the communication module (100) can be reduced while securing wireless performance of a certain level or higher using only the second antenna module (140).
[0105] Furthermore, power can be supplied only to the first antenna section (144, see FIG. 7) of the second antenna module (140) and not to the remaining antenna sections (145, 146, 147, see FIG. 7), or power can be supplied only to the second antenna section (145, see FIG. 9 and 10) of the second antenna module (140) and not to the remaining antenna sections (144, 146, 147, see FIG. 9 and 10), thereby minimizing the power consumption of the communication module (100).
[0106] Referring to FIG. 17, the control box (200) may be located to the left of the display (1), and the communication module (250) of the control box (200) may face the communication module (100) of the display (1). To this end, the rotating plate (203) of the control box (200) and the communication module (250) may be rotated or tilted toward the communication module (100) (see FIG. 12).
[0107] In this case, the antenna section formed on the left side of the first and second antenna modules (130, 140) of the communication module (100), that is, the third antenna section (136, 146, see FIG. 7, 9 and 10), can receive a signal from the antenna section (250A, see FIG. 13) of the communication module (250). Meanwhile, the remaining antenna sections of the communication module (100) may be turned off because it is difficult to receive the signal from the antenna section (250A).
[0108] The second antenna module (140), located to the right of the first antenna module (130), may be located relatively far from the communication module (250). The sensitivity of the signal received by the first antenna module (130) may be higher than the sensitivity of the signal received by the second antenna module (140). If the difference in reception sensitivity between the first and second antenna modules (130, 140) is greater than or equal to a first reference value (a1) (e.g., S20 in FIG. 15), and the wireless performance does not drop below a second reference value (a2) even when the power of the second antenna module (140) is turned off (e.g., S30 in FIG. 15), the control unit (CU) may turn off the power of the second antenna module (140). Accordingly, the power consumption of the communication module (100) can be reduced while securing a certain level of wireless performance using only the first antenna module (130).
[0109] Furthermore, power is supplied only to the third antenna section (136, see FIG. 7, 9 and 10) of the first antenna module (130) and not to the remaining antenna sections (134, 135, 137, see FIG. 7, 9 and 10), thereby minimizing the power consumption of the communication module (100).
[0110] Referring to FIG. 18, the control box (200) may be located to the right of the display (1), and the communication module (250) of the control box (200) may face the communication module (100) of the display (1). To this end, the rotating plate (203) of the control box (200) and the communication module (250) may be rotated or tilted toward the communication module (100) (see FIG. 12).
[0111] In this case, the antenna section formed on the right side of the first and second antenna modules (130, 140) of the communication module (100), that is, the fourth antenna section (137, 147, see FIG. 7, 9 and 10), can receive a signal from the antenna section (250A, see FIG. 13) of the communication module (250). Meanwhile, the remaining antenna sections of the communication module (100) may be turned off because it is difficult to receive the signal from the antenna section (250A).
[0112] The first antenna module (130), located to the left of the second antenna module (140), may be located relatively far from the communication module (250). The sensitivity of the signal received by the second antenna module (140) may be higher than the sensitivity of the signal received by the first antenna module (130). If the difference in reception sensitivity between the first and second antenna modules (130, 140) is greater than or equal to a first reference value (a1) (e.g., S20 in FIG. 15), and the wireless performance does not drop below a second reference value (a2) even when the power of the first antenna module (130) is turned off (e.g., S30 in FIG. 15), the control unit (CU) may turn off the power of the first antenna module (130). Accordingly, the power consumption of the communication module (100) can be reduced while securing a certain level of wireless performance using only the second antenna module (140).
[0113] Furthermore, power is supplied only to the fourth antenna section (147, see FIG. 7, 9 and 10) of the second antenna module (140) and not to the remaining antenna sections (144, 145, 146, see FIG. 7, 9 and 10), thereby minimizing the power consumption of the communication module (100).
[0114] Referring to FIGS. 19 and 20, the control box (200) may be located below the display (1), and the communication module (250) of the control box (200) may face the communication module (100) of the display (1). To this end, the rotating plate (203) of the control box (200) and the communication module (250) may be rotated or tilted toward the communication module (100) (see FIG. 12).
[0115] In this case, the antenna section formed on the bottom or lower surface of the first and second antenna modules (130, 140) of the communication module (100), namely the second antenna section (135, 145, see FIG. 7) or the first antenna section (134, 144, see FIG. 9 and 10), can receive a signal from the antenna section (250A, see FIG. 13) of the communication module (250). Meanwhile, the remaining antenna sections of the communication module (100) may be turned off because it is difficult to receive the signal from the antenna section (250A).
[0116] The antenna section (250A) of FIG. 19 can provide a signal having horizontal polarization characteristics. In this case, the second antenna section (145, see FIG. 7) or the first antenna section (144, see FIG. 9 and 10) of the second antenna module (140) that detects horizontal polarization can be matched with the antenna section (250A). That is, the sensitivity of the signal received by the second antenna module (140) may be higher than the sensitivity of the signal received by the first antenna module (130). If the difference in reception sensitivity between the first and second antenna modules (130, 140) is greater than or equal to a first reference value (a1) (e.g., S20 in FIG. 15), and the wireless performance does not decrease below a second reference value (a2) even when the power of the first antenna module (130) is turned OFF (e.g., S30 in FIG. 15), the control unit (CU) can turn OFF the power of the first antenna module (130). Accordingly, wireless performance of a certain level or higher can be secured using only the second antenna module (140), while reducing the power consumption of the communication module (100).
[0117] Furthermore, power can be supplied only to the second antenna section (145, see FIG. 7) of the second antenna module (140) and not to the remaining antenna sections (144, 146, 147, see FIG. 7), or power can be supplied only to the first antenna section (144, see FIG. 9 and 10) of the second antenna module (140) and not to the remaining antenna sections (145, 146, 147, see FIG. 9 and 10), thereby minimizing the power consumption of the communication module (100).
[0118] The antenna section (250A) of FIG. 20 can be rotated 90 degrees from the antenna section (250A) of FIG. 19 and can provide a signal having vertical polarization characteristics. In this case, the second antenna section (135, see FIG. 7) or the first antenna section (134, see FIG. 9 and 10) of the first antenna module (130) that detects vertical polarization can be matched with the antenna section (250A). That is, the sensitivity of the signal received by the first antenna module (130) can be higher than the sensitivity of the signal received by the second antenna module (140). If the difference in reception sensitivity between the first and second antenna modules (130, 140) is greater than or equal to a first reference value (a1) (e.g., S20 in FIG. 15), and the wireless performance does not decrease below a second reference value (a2) even when the power of the second antenna module (140) is turned off (e.g., S30 in FIG. 15), the control unit (CU) can turn off the power of the second antenna module (140). Accordingly, the power consumption of the communication module (100) can be reduced while securing wireless performance above a certain level using only the first antenna module (130).
[0119] Furthermore, power can be supplied only to the second antenna section (135, see FIG. 7) of the first antenna module (130) and not to the remaining antenna sections (134, 136, 137, see FIG. 7), or power can be supplied only to the first antenna section (134, see FIG. 9 and 10) of the first antenna module (130) and not to the remaining antenna sections (135, 136, 137, see FIG. 9 and 10), thereby minimizing the power consumption of the communication module (100).
[0120] Referring to FIG. 21, the antenna section (250A) of the communication module (250) may have an angle (i.e., 45 degrees) between the antenna section (250A, see FIG. 19) that provides a signal with horizontal polarization characteristics and the antenna section (250A, see FIG. 20) that provides a signal with vertical polarization characteristics. In this case, if the signal from the antenna section (250A) is received by either the first antenna module (130) or the second antenna module (140), the signal quality may be degraded. That is, if the power of either the first and second antenna modules (130, 140) is turned OFF, the wireless performance is lowered below the second reference value (a2) (S30 in FIG. 15: No), so the control unit (CU) can keep the power of the first and second antenna modules (130, 140) ON.
[0121] Referring to FIGS. 22 and 15, the aforementioned S10, S20, S30, S40, and S50 can be referred to as an antenna power control process (S60). The control unit (CU) can detect whether the power of the control box (200) is turned ON again after being turned OFF (S70). Here, the power of the control box (200) can be turned ON when connected to an external power source via a power cable, and can be turned OFF when the connection with the external power source is severed.
[0122] If it is determined that the power of the control box (200) has been turned ON again after being turned OFF (S70: Yes), the control unit (CU) can perform the antenna power control process (S60) again. This takes into account that the position of the control box (200) may change between the power ON / OFF of the control box (200). Accordingly, user convenience can be improved.
[0123] Referring to FIGS. 1 to 22, the display device may include: a display panel; a frame located behind the display panel and to which the display panel is coupled; a communication module adjacent to one side of the frame and coupled to the frame; a control unit for controlling the communication module; and a control box that wirelessly transmits and receives signals with the communication module, and the communication module may include: a first antenna module; and a second antenna module spaced apart from the first antenna module, and the control unit may turn on the power of at least one of the first antenna module or the second antenna module.
[0124] The above control unit can control the ON / OFF of the power of the first and second antenna modules based on the positional relationship between the communication module and the control box.
[0125] The control unit can turn on the power of both the first and second antenna modules if the difference in reception sensitivity between the first antenna module and the second antenna module is less than a first reference value.
[0126] The receiving sensitivity of the first antenna module may be higher than the receiving sensitivity of the second antenna module than the first reference value, and the control unit may turn off the power of the second antenna module if the difference in wireless performance depending on whether the power of the second antenna module is turned off is less than the second reference value.
[0127] The above control unit can control the ON / OFF of the power of the first and second antenna modules again when the power of the control box is turned ON again after being turned OFF.
[0128] Each of the first and second antenna modules may include: a substrate; a first antenna portion formed on the front surface of the substrate; a second antenna portion formed on the lower edge of the substrate; a third antenna portion formed on the left edge of the substrate; and a fourth antenna portion formed on the right edge of the substrate.
[0129] The control box may be located in front of the first and second antenna modules and may be located closer to the first antenna module than to the second antenna module, and the control unit may turn on the power of the first antenna module while turning off the power of the second antenna module.
[0130] The control unit can turn on the power of the first antenna part of the first antenna module, while turning off the power of the remaining antenna parts of the first antenna module.
[0131] The first antenna module may be located to the left of the second antenna module, and the control box may be located to the left of the first antenna module, and the control unit may turn on the power of the first antenna module and turn off the power of the second antenna module.
[0132] The control unit above can turn on the power of the third antenna unit of the first antenna module, while turning off the power of the remaining antenna units of the first antenna module.
[0133] The second antenna portion of the first antenna module can detect vertical polarization, and the second antenna portion of the second antenna module can detect horizontal polarization; the control box can be located below the first and second antenna modules and can provide a signal having horizontal polarization characteristics; and the control unit can turn on the power of the second antenna module and turn off the power of the first antenna module.
[0134] The second antenna portion of the first antenna module can detect vertical polarization, and the second antenna portion of the second antenna module can detect horizontal polarization; the control box can be located below the first and second antenna modules and can provide a signal having the characteristics of vertical polarization; and the control unit can turn on the power of the first antenna module and turn off the power of the second antenna module.
[0135] The control unit can turn on the power of the second antenna unit of the first antenna module, while turning off the power of the remaining antenna units of the first antenna module.
[0136] A part of the above communication module may protrude downward from the lower edge of the frame.
[0137] The above control box may include: a case; a rotating plate rotatably coupled to one side of the case; and a communication module located inside the case and tiltably coupled to the rotating plate.
[0138] Some or other embodiments of the present disclosure described above are not exclusive or distinct from one another. Some or other embodiments of the present disclosure described above may be used in combination or combined for their respective configurations or functions.
[0139] For example, this means that configuration A described in a specific embodiment and / or drawing and configuration B described in another embodiment and / or drawing can be combined. That is, even if the combination between configurations is not directly described, it means that combination is possible, except in cases where it is described that combination is impossible.
[0140] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.
Claims
Claim 1 A display device comprising: a display panel; a frame located behind the display panel and to which the display panel is coupled; a communication module adjacent to one side of the frame and coupled to the frame; a control unit for controlling the communication module; and a control box that wirelessly transmits and receives signals with the communication module, wherein the communication module comprises: a first antenna module; and a second antenna module spaced apart from the first antenna module, and the control unit turns on the power of at least one of the first antenna module or the second antenna module. Claim 2 In claim 1, the control unit is a display device that controls the ON / OFF of the power of the first and second antenna modules based on the positional relationship between the communication module and the control box. Claim 3 In claim 1, the control unit is a display device that turns on the power of both the first and second antenna modules when the difference in reception sensitivity between the first antenna module and the second antenna module is less than a first reference value. Claim 4 A display device according to claim 3, wherein the receiving sensitivity of the first antenna module is higher than the receiving sensitivity of the second antenna module by more than the first reference value, and the control unit turns off the power of the second antenna module if the difference in wireless performance depending on whether the power of the second antenna module is turned off is less than the second reference value. Claim 5 In claim 4, the control unit is a display device that controls the ON / OFF of the power of the first and second antenna modules again when the power of the control box is turned ON again after being turned OFF. Claim 6 In claim 1, each of the first and second antenna modules comprises: a substrate; a first antenna portion formed on the front surface of the substrate; a second antenna portion formed on the lower edge of the substrate; a third antenna portion formed on the left edge of the substrate; and a fourth antenna portion formed on the right edge of the substrate, forming a display device. Claim 7 In claim 6, the control box is located in front of the first and second antenna modules and is located closer to the first antenna module than to the second antenna module, and the control unit is a display device that turns on the power of the first antenna module and turns off the power of the second antenna module. Claim 8 In claim 7, the control unit is a display device that turns on the power of the first antenna part of the first antenna module, while turning off the power of the remaining antenna parts of the first antenna module. Claim 9 In claim 6, the first antenna module is located to the left of the second antenna module, the control box is located to the left of the first antenna module, and the control unit is a display device that turns on the power of the first antenna module and turns off the power of the second antenna module. Claim 10 In claim 9, the control unit is a display device that turns on the power of the third antenna unit of the first antenna module, while turning off the power of the remaining antenna units of the first antenna module. Claim 11 In claim 6, the second antenna portion of the first antenna module detects vertical polarization, the second antenna portion of the second antenna module detects horizontal polarization, the control box is located below the first and second antenna modules and provides a signal having horizontal polarization characteristics, and the control unit turns on the power of the second antenna module while turning off the power of the first antenna module. Claim 12 In claim 6, the second antenna portion of the first antenna module detects vertical polarization, the second antenna portion of the second antenna module detects horizontal polarization, the control box is located below the first and second antenna modules and provides a signal having the characteristics of vertical polarization, and the control unit is a display device that turns on the power of the first antenna module and turns off the power of the second antenna module. Claim 13 In claim 12, the control unit is a display device that turns on the power of the second antenna unit of the first antenna module, while turning off the power of the remaining antenna units of the first antenna module. Claim 14 In claim 1, a part of the communication module is a display device protruding downward from the lower edge of the frame. Claim 15 A display device according to claim 1, wherein the control box comprises: a case; a rotating plate rotatably coupled to one side of the case; and a communication module located inside the case and tiltably coupled to the rotating plate.