WO2015194648A1 - Châssis, châssis de rétroéclairage, dispositif d'affichage, récepteur de télévision, et procédé de fabrication de dispositif électronique - Google Patents

Châssis, châssis de rétroéclairage, dispositif d'affichage, récepteur de télévision, et procédé de fabrication de dispositif électronique Download PDF

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Publication number
WO2015194648A1
WO2015194648A1 PCT/JP2015/067667 JP2015067667W WO2015194648A1 WO 2015194648 A1 WO2015194648 A1 WO 2015194648A1 JP 2015067667 W JP2015067667 W JP 2015067667W WO 2015194648 A1 WO2015194648 A1 WO 2015194648A1
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WO
WIPO (PCT)
Prior art keywords
chassis
substrate
board
backlight chassis
led
Prior art date
Application number
PCT/JP2015/067667
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English (en)
Japanese (ja)
Inventor
巧 山口
中村　育雄
農夫雄 岡部
桑原　哲郎
俊作 渕川
宮田　英樹
健也 本間
Original Assignee
シャープ株式会社
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Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2015194648A1 publication Critical patent/WO2015194648A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods

Definitions

  • the present invention relates to a chassis to which a substrate is attached, a display device having a backlight chassis to which the substrate is attached, and a method for manufacturing an electronic device having the chassis to which the substrate is attached.
  • Patent Document 1 is an example of such a technique.
  • the illumination device of Patent Document 1 includes a light source substrate, a light source disposed on the surface of the light source substrate, a light guide plate that is provided with a light incident surface on a side surface, and guides light from the light source, and the light source substrate. And a heat radiating plate having a larger heat radiating efficiency than the light source substrate, and a housing member that houses at least the light source substrate, the light guide plate, and the heat radiating plate.
  • this illuminating device is provided with a convex portion projecting toward the other on the plate surface of one of the light source substrate and the heat radiating plate, and the convex portion on the plate surface facing the other convex portion. And the light source substrate is held by the heat radiating plate by fitting the concave portion and the convex portion.
  • Patent Document 1 the technology of Patent Document 1 can improve the heat dissipation of heat generated from a light source in an edge light type illumination device in which a light source substrate is held by a heat sink.
  • the present invention has been made in view of the above problems, and its main object is a backlight chassis capable of attaching a light source substrate (more generally, a substrate) with less effort than before. (More generally, the chassis).
  • a chassis is a chassis to which a substrate is attached, and a claw portion that holds the substrate by pressing the main surface of the substrate; With respect to the notch formed on a certain side surface, a fitting part in a position where the claw part can be fitted in a state in which the substrate is sandwiched, and the fitting part are fitted into the notch. An abutting portion that abuts on another side surface of the substrate facing the certain side surface in the state.
  • the chassis according to one embodiment of the present invention has an advantage that it is possible to attach a substrate with less effort than before.
  • FIG. 2 is a perspective view and a cross-sectional view taken along the line A-A ′ of a structure for attaching the LED substrate, which the backlight chassis has.
  • FIG. 4 is a cross-sectional view taken along line B-B ′ of the backlight chassis.
  • FIG. 4 is a cross-sectional view taken along line C-C ′ of the backlight chassis. It is the figure which showed a mode that the said LED board was clamped in the nail
  • FIG. 2 is a perspective view and a cross-sectional view taken along the line A-A ′ of the LED board in a state attached to the backlight chassis and the structure fixing the LED board. It is a perspective view of the said display apparatus. It is the figure which showed a mode that an LED board was clamped by the nail
  • Embodiment 1 a display device according to an embodiment of the present invention will be described with reference to the drawings. Note that a television receiver including a display device described below is also included in the invention described in this specification.
  • FIG. 2 is an exploded perspective view of the display device 1 according to the present embodiment as viewed from the front side.
  • FIG. 3 is an exploded perspective view of the display device 1 according to the present embodiment as viewed from the back side.
  • the display device 1 includes a front cabinet 10, a bezel 11, a liquid crystal panel 12, a sheet holding frame 13, an optical sheet group 14, a reflective sheet 15, four LED substrates 16, and a backlight chassis 17. , A speaker 18, a back cabinet 20, and a main circuit board 21.
  • the LED substrate 16 and the LED element 160 are disposed on the back surface of the liquid crystal panel 12, the optical sheet group 14, and the reflection sheet 15.
  • a direct type backlight is configured.
  • the side on which the front cabinet 10 is present is also referred to as the front
  • the opposite side is also referred to as the back.
  • the front cabinet 10 is a housing that mainly covers the outer frame of the display device 1 from the front side.
  • the back cabinet 20 is a housing that mainly covers the display device 1 from the back side.
  • the main circuit board 21 is stored in an overlapping manner.
  • the bezel 11 is disposed so as to cover the periphery of the liquid crystal panel 12 from the image display surface side of the liquid crystal panel 12, and by holding the liquid crystal panel 12 together with the sheet holding frame 13, the normal line of the liquid crystal panel 12 with respect to the backlight chassis 17. Define the position of the direction. Further, by providing the bezel 11, the strength of the display device 1 can be maintained, which is also effective for countermeasures against static electricity.
  • the sheet holding frame 13 is a member that supports the liquid crystal panel 12 and holds the liquid crystal panel 12 together with the bezel 11 as described above.
  • the sheet holding frame 13 is a light shielding member that prevents light from leaking from the periphery of the optical sheet group 14 to be described later.
  • the sheet holding frame 13 defines the position in the normal direction of the optical sheet group 14 with respect to the backlight chassis 17 by holding the optical sheet group 14 together with the backlight chassis 17.
  • the optical sheet group 14 suppresses unevenness in the amount of light emitted from the LED element 160 provided on the LED substrate 16 (described later) (that is, unevenness in brightness) and adjusts the light emitted from the LED element 160. And has a function of emitting light toward the liquid crystal panel 12.
  • the optical sheet group 14 includes, for example, a diffusion sheet, a prism sheet, a microlens sheet, and a diffusion sheet. Note that the number and combination of the respective sheets constituting the optical sheet group 14 are not particularly limited as long as the number and combination can provide desired optical performance.
  • the reflection sheet 15 reflects the light emitted from the LED element 160.
  • An LED element insertion hole 151 is formed in the reflection sheet 15, and the LED element 160 included in the LED substrate 16 provided on the back side of the reflection sheet 15 is inserted into the LED element insertion hole 151. Thereby, the reflective sheet 15 is positioned between the LED substrate 16 and the LED element 160.
  • the reflection sheet 15 reflects the light emitted from the LED element 160 that has been absorbed by the LED substrate 16 and the back cabinet 20 and can be used effectively, the amount of light emitted toward the optical sheet group 14 is increased. be able to. Thereby, the reflection sheet 15 can improve the luminance of the liquid crystal panel 12.
  • the reflective sheet 15 may be a sheet that regularly reflects incident light, but it is more preferable to use a sheet that irregularly reflects light. By using a sheet that diffusely reflects incident light as the reflection sheet 15, the reflection sheet 15 can reflect light including a reflection component having an angle different from the incident angle.
  • the LED substrate 16 is a substrate on which the LED elements 160 are arranged on the liquid crystal panel 12 side, and is fixed to the backlight chassis 17.
  • the LED board 16 there is a feature in how to attach the LED board 16 to the backlight chassis 17, but details of how to attach will be described later with different drawings.
  • the LED substrate 16 has a strip shape, and a plurality of LED elements 160 are arranged along the longitudinal direction. By configuring the LED substrate 16 in this manner, a plurality of LED elements 160 can be easily arranged in the display device 1.
  • the LED board 16 is provided with a circuit (not shown) for supplying current to the LED element 160, and a circuit (not shown) provided on the main circuit board 21 disposed on the back surface of the backlight chassis 17. (Shown) is electrically connected.
  • a connector 161 for electrical connection to the main circuit board 21 is provided at one end of the LED board 16 in the longitudinal direction.
  • the LED board 16 includes a connector 161 and each LED element 160.
  • a circuit (not shown) for electrically connecting the two is provided.
  • the main circuit board 21 disposed on the back surface of the backlight chassis 17 is electrically connected to a circuit provided on the LED board 16 via a connector 161.
  • the configuration in which the longitudinal direction of the LED substrate 16 is arranged in parallel to the longitudinal direction of the display device 1 is described as an example.
  • the LED substrate 16 may be arranged so that the longitudinal direction thereof is parallel to the lateral direction of the display device 1.
  • the backlight chassis 17 is a chassis that holds the LED substrate 16.
  • the backlight chassis 17 holds the liquid crystal panel 12, the optical sheet group 14, and the reflection sheet 15 by the bezel 11 and the sheet holding frame 13.
  • the speaker 18 outputs audio of content that is played back (displayed) on the display device 1.
  • the speaker 18 is fixed between the lower rear portion of the backlight chassis 17 and the lower front portion of the back cabinet 20 using a speaker support 19.
  • the LED board 16 and the backlight chassis 17 have a specific structure for fixing the LED board 16 to the backlight chassis 17 without requiring screwing.
  • FIG. 1 is a front view of the backlight chassis 17 and the LED board 16. 4 is a partially enlarged view of the backlight chassis 17 (an enlarged view of a portion surrounded by a broken line in FIG. 1).
  • the LED board 16 is a board having a specified size suitable for attachment to the backlight chassis 17. That is, the LED board 16 has a specified thickness, and when the attachment to the backlight chassis 17 is completed, a certain plane formed on the backlight chassis 17 (the front direction of the backlight chassis 17 is normal). It is designed to be flush with the plane Q). In addition, a plurality of (five in this embodiment) notches 162 are formed in the LED substrate 16 along the longitudinal direction thereof.
  • the backlight chassis 17 is formed with a plurality of (in this embodiment, 20) protrusions 173 in a matrix (in this embodiment, 4 rows and 5 columns). ing.
  • the protrusions 173 and the notches 162 have shapes that can be fitted to each other, and the five protrusions 173 in each row are simultaneously fitted with the five notches 162 of the LED board 16. It is formed in a possible position. That is, the distance between the i-th notch 162 and the i + 1-th notch 162 from the X-axis negative direction side in FIG. 1 is the i-th protrusion 173 and the i + 1-th protrusion from the X-axis negative direction side in each row. The distance to the portion 173 is substantially equal.
  • a plurality of (in this embodiment, 20) claw portions 172 are formed in a matrix (in this embodiment, 4 rows and 5 columns), and a plurality of protruding portions are formed. 174 are formed in a matrix (in this embodiment, 4 rows and 6 columns).
  • FIG. 5 is a perspective view and a cross-sectional view taken along the line A-A ′ of a specific structure (a structure surrounded by a broken line in FIG. 4) that the backlight chassis 17 has.
  • 6 is a cross-sectional view taken along the line B-B ′ of the backlight chassis 17
  • FIG. 7 is a cross-sectional view taken along the line C-C ′ of the backlight chassis 17.
  • the A-A ′ line, the B-B ′ line, and the C-C ′ line are shown in FIG.
  • the claw portion 172 has a certain restoring force, and the distance in the Z-axis direction between the claw portion 172 and the plane P is slightly shorter than the thickness of the LED substrate 16. That is, as can be seen from the shape of the claw portion 172 shown in FIGS. 5A and 5B, the claw portion 172 has the LED substrate 16 on its main surface (that is, the component on which the LED element 160 is disposed). Can be clamped by pressing the surface. Further, as can be seen from FIG. 5B and FIG. 6, the thickness of the base portion 172r of the claw portion 172 (the length of the outer dimension in the Z-axis direction) is the thickness of the tip portion 172t of the claw portion 172 (Z-axis).
  • the root portion 172 is bent (drawing) so that the outer dimension of the root portion 172r in the Z-axis direction is longer than the outer dimension of the tip portion 172t in the Z-axis direction. ). For this reason, the thickness of the material of the root portion 172r (length in the Z-axis direction) and the thickness of the material of the tip portion 172t (length in the Z-axis direction) are substantially equal.
  • the protruding portion 174 has a front end portion whose surface is normal to the downward direction (Y-axis positive direction) of the backlight chassis 17 (hereinafter referred to as “front end surface”). ). Further, the protruding portion 174 has a surface different from the front end surface (a plane whose normal direction is the front direction (Z-axis positive direction) of the backlight chassis 17, hereinafter referred to as “side surface of the protruding portion 174”). The plane of the protruding portion 174 is flush with the plane Q.
  • the claw portion 172 and the protruding portion 174 are arranged so that the positions in the X-axis direction are different from each other. More specifically, the claw portions 172 and the protruding portions 174 are alternately arranged along the X-axis direction. With such a configuration, it becomes easy to fix the LED substrate 16 at a predetermined position.
  • the length of the width in the Y-axis direction of the LED substrate 16 at the portion where the notch 163 is formed is equal to the distance in the Y-axis direction between the root of the claw portion 172 and the tip surface of the protruding portion 174.
  • the protruding portion is used when the operator performs the work of holding the LED board 16 between the claw portions 172. The presence of the portion 174 hinders work.
  • the claw portion 172 and the protruding portion 174 are arranged so that the positions in the X-axis direction are different from each other, the work of holding the LED board 16 between the claw portions 172 is performed.
  • the presence does not hinder the work, and the LED board 16 can be suitably inserted into the claw portion 172 while utilizing the bending of the LED board 16 in the Z-axis direction.
  • the operator places the side surface of the LED substrate 16 (the side surface without the notch 162) on the tip surface of the protruding portion 174. After the contact, the LED board 16 can be easily held by the next claw portion 172.
  • the height of the protrusion 173 (the length from the plane P to the tip of the protrusion 173 (the length in the Z-axis direction)) is the thickness of the protruding portion 174 (that is, , The length in the Z-axis direction).
  • the height of the claw portion 172 (the longest length in the Z-axis direction from the plane P to the claw portion 172) is the height of the lens spherical portion of the LED element 160 (the longest Z-axis from the plane P to the lens spherical portion). (Length in the direction). With such a structure, the claw portion 172 does not block the light emitted from the lens, the light from the LED element 160 is not affected by the claw portion 172, and luminance unevenness is less likely to occur.
  • the plane P is also drawn in the Y-axis direction.
  • the drawing in the X-axis direction and the drawing in the Y-axis direction it is difficult to bend along any direction of the X-axis direction and the Y-axis direction, and the strength is improved.
  • FIG. 9 is a view showing a state in which the notch 162 of the LED substrate 16 is fitted into the protrusion 173 (fitting portion) of the backlight chassis 17.
  • FIG. 10 is a diagram illustrating a state in which the side surface of the LED board 16 comes into contact with the distal end surface (contact portion) of the protruding portion 174 of the backlight chassis 17 as a result of the notch 162 being fitted into the protrusion 173.
  • FIG. 11 is a perspective view and a front view of the backlight chassis 17 in a state where all the LED boards 16 to be attached (that is, four LED boards 16) are attached.
  • FIG. 12 is a perspective view and a cross-sectional view taken along the line AA ′ of the LED board 16 attached to the backlight chassis 17 and the above-described unique structure fixing the LED board 16. .
  • the process of attaching the LED board 16 to the backlight chassis 17 includes the following two processes.
  • Step 1) Step of clamping the LED substrate 16 to the claw portion 172 by pressing the main surface of the LED substrate 16
  • Step 2) The protrusion 173 (fitting portion) is firmly fitted into the notch 162, and the protruding portion 174 is formed.
  • the front end surface (contact portion) of the LED substrate 16 is brought into contact with the side surface of the LED substrate 16 (the side surface opposite to the side surface on which the notch 162 is formed).
  • the LED substrate 16 is sandwiched between the claw portion 172 and the plane P.
  • the elastically deformed claw portion 172 sandwiches the LED board 16 by its restoring force.
  • step 2 as shown in FIG. 9, the operator moves the LED board 16 so that the notch 162 fits into the protrusion 173 while holding the LED board 16 between the claw parts 172, and further, The substrate 16 is pushed into the plane P side.
  • the notch 162 is firmly fitted to the protruding portion 173, and the tip end surface of the protruding portion 174 contacts the side surface of the LED substrate 16.
  • FIG. 11 shows the backlight chassis 17 to which all four LED boards 16 are attached
  • FIG. 12 shows an enlarged view of a part thereof (a part surrounded by a broken line in FIG. 11).
  • the backlight chassis 17 to which the LED substrate 16 is attached the “side surface of the protruding portion 174”, “plane Q”, and “main surface of the LED substrate 16” are in contact with the reflection sheet 15. The planes are flush with each other. Therefore, it can be said that the backlight chassis 17 has a structure that does not distort the reflective sheet 15 inside the display device 1.
  • the structure for fixing the LED substrate 16 in the backlight chassis 17 is formed by drawing (bending), it can be said that the structure contributes to the improvement of the strength of the backlight chassis 17.
  • the worker attaches the LED board 16 to the backlight chassis 17 and then incorporates various parts into the cabinet (the front cabinet 10 and the back cabinet 20) by a known method, as shown in FIG.
  • the external display device 1 can be manufactured.
  • the backlight chassis 17 is a chassis to which the LED board 16 is attached.
  • the backlight chassis 17 has a claw portion 172 that holds the LED substrate 16 by pressing the main surface of the LED substrate 16 and a notch 162 formed on a side surface of the LED substrate 16. In the state which can be fitted in the state which has pinched
  • the claw portion 172 of the backlight chassis 17 holds the LED board 16 by pressing the main surface of the LED board 16, so the backlight chassis 17 is not intended and the LED board 16 is mainly used. It is possible to prevent displacement in the normal direction of the surface.
  • the backlight chassis 17 unintentionally LED board 16 can be prevented from shifting in a direction other than the pulling-out direction (the direction opposite to the fitting direction).
  • the protruding portion 174 of the backlight chassis 17 abuts on another side surface of the LED substrate 16 (a side surface facing the side surface on which the notch 162 is formed).
  • the LED substrate 16 can be prevented from being unintentionally displaced in the extraction direction.
  • the backlight chassis 17 has a structure that allows the LED substrate 16 to be firmly fixed without requiring screwing.
  • the backlight chassis 17 has an advantage that the LED substrate 16 can be attached with less effort than before (that is, without screwing).
  • the backlight chassis 17 since the backlight chassis 17 abuts on the LED board 16, the backlight chassis 17 also serves as a heat radiating plate that releases heat generated in the LED board 16 from the LED board 16. Therefore, the backlight chassis 17 has an advantage that it is not necessary to prepare a heat sink separately from the backlight chassis 17 (that is, it contributes to cost reduction of the display device).
  • the protrusions 173 are formed in a matrix of 4 rows and 5 columns.
  • the plurality of protrusions 173 are formed in a matrix of 3 rows and 4 columns.
  • the protrusions 173 and the notches 162 have shapes that can be fitted to each other, and the four protrusions 173 in each row are formed at positions that can be fitted simultaneously with the four notches 162 of the LED board 16. Yes.
  • a plurality (12 in this embodiment) of claw portions 172 are formed in a matrix (in this embodiment, so as to form 3 rows and 4 columns), and a plurality of protruding portions 174 are formed in a matrix (this book). In the embodiment, it is formed in 3 rows and 4 columns).
  • claw portions 172, protrusions 173, and protrusions 174 in each row there are no particular restrictions on the number of claw portions 172, protrusions 173, and protrusions 174 in each row, and the number of claw portions 172, protrusions 173, and protrusions 174 in each row.
  • the plurality of claw portions 172, the plurality of protrusions 173, and the plurality of protruding portions 174 may not be formed in a matrix.
  • the plurality of claw portions 172, the plurality of protrusions 173, and the plurality of protruding portions 174 may be formed in rows or columns.
  • only one claw portion 172, protrusion portion 173, and protruding portion 174 may be formed.
  • the display device according to the present embodiment is similar to the display device according to the first and second embodiments in that the rigidity of the claw portion 172 is increased so that the LED substrate 16 can be held firmly.
  • the display device according to the first and second embodiments is different from the display device according to the first and second embodiments in that the claw portion 172 is configured to increase the rigidity of the claw portion 172.
  • the display device according to the present embodiment is different from the display devices according to the first and second embodiments in that the material thickness of the root portion 172r (length in the Z-axis direction) is the material thickness of the tip portion 172t (Z-axis direction).
  • the claw portion 172 is configured to be thicker than
  • the display device 1 mainly used for a television receiver is described.
  • the display device according to the present invention is not limited to a television receiver.
  • the display device according to the present invention may be implemented in the form of a display for a personal computer.
  • FIG. 14 is a diagram showing a state in which the LED substrate is held between the tabs of the backlight chassis according to the present embodiment.
  • the display device according to the present embodiment is similar to the display devices according to Embodiments 1, 2, and 3 in that the rigidity of the claw portion 172 is increased so that the LED substrate 16 can be securely held. However, in terms of how the notch on the side surface of the backlight chassis 17 formed to prevent the LED substrate 16 from shifting in a direction other than the extraction direction (Y-axis negative direction) is configured. This is different from the display devices according to 1, 2, and 3.
  • a notch 163 is formed on a side surface of the LED substrate 16 as shown in FIG.
  • the notch 163 is formed to have a width substantially the same as the width in the X-axis direction of the base of the claw part 172 that sandwiches the main surface of the LED substrate 16, and the base of the claw part 172 and the bottom of the notch 163 are formed.
  • the claw portion 172 sandwiches the LED board 16 so as to keep the closest state.
  • the width of the claw portion 172 in the X-axis direction is substantially the same as the width of the notch 163
  • the width of the claw portion 172 in the X-axis direction is the same as that of the claw portion 172 and the notch 163.
  • the width is such that the two side portions of the notch 163 are in contact with the base of the claw portion 172 at the same time when the claw portion 172 holds the LED board 16 so as to keep the state closest to the bottom. It can also be said.
  • the backlight chassis 17 can prevent the LED substrate 16 from being unintentionally displaced in a direction other than the extraction direction. Further, with this configuration, the hole around the claw portion 172 is closed by the LED substrate 16. With such a structure, the light of the LED element 160 may leak from the hole around the claw part 172 to the back side of the backlight chassis 17 in a state where the LED substrate 16 is completely attached to the claw part 172. This eliminates unnecessary light leakage.
  • the process of attaching the LED board 16 to the backlight chassis 17 includes the following two processes.
  • Step 1) Step of pressing the main surface of the LED board 16 so as to keep the bottom of the notch 163 closest to the root of the claw portion 172
  • Step 2) The front end surface of the protruding portion 174 ( The step of bringing the abutting portion into contact with the side surface of the LED substrate 16 (the side surface facing the side surface on which the notch 162 is formed)
  • step 1 the operator holds the LED substrate 16 on the claw portion 172.
  • the LED substrate 16 is sandwiched between the claw portion 172 and the plane P.
  • the elastically deformed claw portion 172 sandwiches the LED board 16 by its restoring force.
  • step 2 the operator pushes the LED board 16 toward the plane P side while holding the LED board 16 between the claw portions 172. As a result, the tip end surface of the protruding portion 174 contacts the side surface of the LED substrate 16.
  • the worker attaches the LED board 16 to the backlight chassis 17 and then incorporates various parts into the cabinet (the front cabinet 10 and the back cabinet 20) by a known method, as shown in FIG.
  • the external display device 1 can be manufactured.
  • FIG. 15 is a diagram illustrating a state in which a convex portion between two notches of the LED substrate 16 is inserted into the opening portion of the backlight chassis 17 according to the present embodiment.
  • FIG. 16B is a cross-sectional view taken along line E-E ′ of the backlight chassis 17. The E-E ′ line is shown in FIG.
  • the display device has two notches formed on a side surface of the LED substrate 16 as shown in FIG.
  • the two notches are provided continuously, and a convex portion 164 is formed between the two notches.
  • an insertion portion 172b is formed on the plane P (a certain surface) of the backlight shale 17.
  • the insertion part 172b is a part into which the convex part 164 between two continuous notches is inserted.
  • the insertion portion 172b includes an opening that penetrates the plane P, and a protrusion that rises in a direction perpendicular to the plane P as viewed from the opening and extends parallel to the plane P. Part 172c.
  • the insertion part 172b has a shape like the entrance of a tunnel. By setting it as such a shape, the contact area of the LED board 16 and the insertion part 172b can be ensured suitably, and the support force of a Z-axis direction can fully be provided.
  • the protrusion 172c extends to the Y axis direction negative side, but the protrusion 172c is not limited to such a configuration.
  • the shape of the opening and the protrusion 172c may be any shape that can prevent the LED substrate 16 from shifting in a direction other than the extraction direction (X-axis direction).
  • the shape of the opening and the protrusion 172c viewed from the vertical direction (Z-axis positive direction) may be a rectangle, a trapezoid, or the like.
  • the shape of the opening and the protrusion 172c is a trapezoid
  • the width of the tip of the protrusion 172c (the width in the X-axis direction at the Y-axis negative direction end of the opening) is the X-axis direction of the protrusion 164.
  • the width of the base of the protrusion 172c (the width in the X-axis direction at the Y-axis positive end of the opening) is set to the length of one of the two notches and the other It is substantially the same as the sum of the width of the notch and the width of the protrusion 164.
  • the base width of the protrusion 172c is substantially the same as the sum of the width of one of the two cutouts, the width of the other cutout, and the width of the convex portion 164. Therefore, the width of the base of the protrusion 172c is such that the “side facing the protrusion 164” of each of the two notches is the claw 172 at the same time when the protrusion 164 is firmly inserted into the opening (up to the root). It can also be said that it is the width of the length that touches the root of the.
  • the LED substrate 16 in a state where the convex portion 164 is firmly inserted into the opening (up to the root) is not intended. There is no deviation in the direction other than the extraction direction.
  • the opening is blocked by the LED substrate 16. Thereby, the light emitted from the LED element 160 does not leak from the opening to the back side, and unnecessary light leakage can be prevented.
  • the process of attaching the LED board 16 to the backlight chassis 17 includes the following two processes.
  • Step 1) Step of inserting the convex portion 164 into the opening to the base so that the bottom of the notch is closest to the base of the protrusion 172c
  • Step 2) The tip surface (contact portion) of the protruding portion 174
  • step 1 the operator moves the convex portion 164 to the root (most of the convex portion 164 is a backlight chassis). 17) until it is on the back side.
  • the convex portion 164 and the back surface of the backlight chassis 17 are in contact with each other.
  • step 2 the operator pushes the LED board 16 toward the plane P side while keeping the convex part 164 of the LED board 16 firmly inserted in the opening. As a result, the tip end surface of the protruding portion 174 contacts the side surface of the LED substrate 16.
  • the worker attaches the LED board 16 to the backlight chassis 17 and then incorporates various parts into the cabinet (the front cabinet 10 and the back cabinet 20) by a known method, as shown in FIG.
  • the external display device 1 can be manufactured.
  • an electronic device according to the present invention is not limited to the display device according to the first to fourth embodiments.
  • an electronic device according to the present invention can be any commercial device or household appliance (including a chassis provided with a claw portion 172, a protrusion 173, and a protruding portion 174, and a board attached to the chassis)
  • a chassis according to the present invention can be implemented in the form of an audio device, a washing machine, a refrigerator, a microwave oven, an air conditioner, or the like. That is, the chassis according to the present invention is not limited to the backlight chassis, and the substrate attached to the chassis according to the present invention is not limited to the light source substrate.
  • the claw part, the fitting part, and the contact part included in the chassis according to the present invention are not limited to the claw part 172, the protruding part 173, and the protruding part 174, respectively.
  • the claw portion may have any structure as long as the structure can hold the substrate by pressing the main surface of the substrate.
  • the fitting portion may have any structure as long as it can be fitted to a notch formed on a side surface of the substrate.
  • a chassis (backlight chassis 17) is a chassis to which a board (LED board 16) is attached, and a claw part (claw part) that holds the board by pressing the main surface of the board. 172), a fitting part (protrusion part 173) in a position where the claw part can be fitted to a notch formed on a side surface of the board, with the board being sandwiched, and the fitting A contact portion (a protruding portion 174) that contacts another side surface of the substrate facing the certain side surface in a state where the joint portion is fitted in the notch.
  • the said chassis prevents the said board
  • the fitting portion of the chassis fits into a notch formed on a side surface of the board. It is possible to prevent deviation in a direction other than the direction opposite to the combined direction.
  • the abutting portion of the chassis abuts on another side surface of the substrate (a side surface opposite to the side surface on which the notch is formed), so the chassis is not intended to It is possible to prevent the substrate from shifting in the extraction direction.
  • the chassis has a structure capable of firmly fixing the substrate without requiring screwing.
  • the chassis has an advantage that the board can be attached with less effort than before (that is, without screwing work).
  • the base side of the claw part may be thicker than the tip side of the claw part.
  • the chassis has an additional effect that it can maintain a force for preventing the substrate from shifting in the normal direction of the main surface for a long time.
  • a backlight chassis according to aspect 3 of the present invention includes the claw part, the fitting part, and the contact part included in the chassis according to aspect 1 or 2, and a light source board is attached as the board. It is done.
  • the backlight chassis has an advantage that the light source substrate can be attached with less effort than before (that is, without screwing work). Therefore, the backlight chassis can simplify the assembling work of the display device including the backlight chassis and the light source substrate.
  • the backlight chassis according to aspect 4 of the present invention is the above-described aspect 3 in which a flat surface is formed, and the flat surface has a main surface and a surface when the light source substrate having a specified thickness is attached. It may be a flat surface.
  • the reflection sheet at a position adjacent to the backlight chassis is distorted inside the display device. Can be prevented.
  • a display device includes the backlight chassis according to aspect 3 and the light source substrate attached to the backlight chassis.
  • the display device has an advantage that a manufacturing operation (specifically, an operation of attaching the light source substrate to the backlight chassis) is easy.
  • a flat surface that is flush with the main surface of the light source substrate may be formed in the backlight chassis.
  • the display device has an advantage that the reflection sheet in the position adjacent to the backlight chassis is hardly distorted inside.
  • a television receiver according to aspect 7 of the present invention is a television receiver including the display device according to aspect 5 or 6.
  • the television receiver has the same advantages as the display device according to aspect 5.
  • the manufacturing method which concerns on aspect 8 of this invention is a manufacturing method of the electronic device provided with the board
  • the manufacturing method has an advantage that a manufacturing operation (specifically, an operation of attaching the light source substrate to the backlight chassis) is easy.
  • a chassis according to an aspect 9 of the present invention is a chassis to which a board is attached, and a notch is formed on a side surface of the board, and a nail that holds the board by pressing the main surface of the board.
  • a claw portion whose root width is substantially the same as the width of the cutout, and the root of the claw portion and the bottom of the cutout are kept closest to each other. And a contact portion that contacts another side surface of the substrate that faces the certain side surface in a state where the claw portion holds the substrate.
  • the said chassis prevents the said board
  • the contact portion of the chassis contacts the side surface of the substrate, so that the chassis can prevent the substrate from being unintentionally displaced in the normal direction of the side surface.
  • the claw portion of the chassis has a root width that is substantially the same as a width of the notch, and the claw portion has the root and the notch. Since the substrate is sandwiched so as to keep the state closest to the bottom, the substrate is unintentionally shifted in a direction perpendicular to both the normal direction of the main surface and the normal direction of the side surface. Can be prevented.
  • the chassis has a structure capable of firmly fixing the substrate without requiring screwing.
  • the chassis has an advantage that the board can be attached with less effort than before (that is, without screwing work).
  • a manufacturing method is a method of manufacturing an electronic device including a substrate and a chassis, wherein a notch is formed on a side surface of the substrate, and the substrate is formed on the chassis.
  • a claw portion that is clamped by pressing the main surface of the substrate, wherein a claw portion having a root width approximately the same as the width of the notch is formed, and the substrate is attached to the chassis.
  • a step of attaching the substrate to the claw portion so as to keep the base of the claw portion and the bottom of the notch closest to each other, and And abutting another side surface of the substrate opposite to the abutting portion of the chassis.
  • the manufacturing method has an advantage that a manufacturing operation (specifically, an operation of attaching the light source substrate to the backlight chassis) is easy.
  • a chassis according to an eleventh aspect of the present invention is a chassis to which a board is attached, and two continuous cutouts are formed on a side surface of the board, and the two continuous boards are formed on a surface of the chassis.
  • An opening into which a convex portion between the cutouts is inserted is formed, and is a protrusion located in a direction perpendicular to the surface when viewed from the opening, and the width of the root of one of the protrusions is one
  • a protrusion that is substantially the same as the sum of the length of the notch and the width of the other notch and the width of the protrusion, and the protrusion is inserted into the opening to the base.
  • a contact portion that contacts another side surface of the substrate that faces the certain side surface.
  • the contact portion of the chassis contacts the side surface of the substrate, and therefore the chassis can prevent the substrate from being unintentionally shifted in the normal direction of the side surface.
  • each side portion of the two notches is Proximity or contact with the side of the protrusion. Therefore, the opening and the protrusion can prevent the substrate from being unintentionally displaced in a direction perpendicular to both the normal direction of the main surface and the normal direction of the side surface.
  • the chassis has a structure capable of firmly fixing the substrate without requiring screwing.
  • the chassis has an advantage that the board can be attached with less effort than before (that is, without screwing work).
  • a manufacturing method is a manufacturing method of an electronic device including a board and a chassis, and two continuous notches are formed on a side surface of the board, and the chassis is provided.
  • the surface is formed with an opening into which a convex portion between the two continuous cutouts is inserted, and the chassis is a protrusion that is positioned in a direction perpendicular to the surface when viewed from the opening.
  • a mounting step of mounting the board to the chassis, the mounting step including inserting the convex portion into the opening to a substantially base and another side surface of the board facing the side surface to the chassis. Abutting on the abutting part of And Nde.
  • the manufacturing method has an advantage that a manufacturing operation (specifically, an operation of attaching the light source substrate to the backlight chassis) is easy.
  • the present invention can be suitably applied to a television receiver and its manufacture.
  • Display device (electronic equipment) 16 LED substrate (substrate, light source substrate) 162 Notch 163 Notch 164 Protrusion 17 Backlight chassis (chassis) 172 Claw part 172b Insertion part 172c Projection part 173 Projection part (fitting part) 174 Protruding part (contact part)

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

　L'objectif de la présente invention est de pourvoir à un châssis de rétroéclairage pouvant être fixé à un substrat de source de lumière avec moins de main-d'œuvre et en moins de temps que dans l'état de la technique. Ce châssis de rétroéclairage (17) est pourvu de languettes (172) pour serrer un substrat de diodes électroluminescentes (DEL) (16), de saillies (173) qui s'ajustent dans des encoches (162) formées dans une première surface latérale du substrat DEL (16), et de saillies (174) qui viennent en contact avec une autre surface latérale du substrat de DEL (16), l'autre surface latérale étant à l'opposé de la première surface latérale.
PCT/JP2015/067667 2014-06-18 2015-06-18 Châssis, châssis de rétroéclairage, dispositif d'affichage, récepteur de télévision, et procédé de fabrication de dispositif électronique WO2015194648A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014-125713 2014-06-18
JP2014125713 2014-06-18
JP2015120471 2015-06-15
JP2015-120471 2015-06-15

Publications (1)

Publication Number Publication Date
WO2015194648A1 true WO2015194648A1 (fr) 2015-12-23

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PCT/JP2015/067667 WO2015194648A1 (fr) 2014-06-18 2015-06-18 Châssis, châssis de rétroéclairage, dispositif d'affichage, récepteur de télévision, et procédé de fabrication de dispositif électronique

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017201008A1 (fr) * 2016-05-16 2017-11-23 GE Lighting Solutions, LLC Assemblage par encliquetage de cartes à del dans des luminaires
JP2020053157A (ja) * 2018-09-25 2020-04-02 不二サッシ株式会社 Ｌｅｄモジュールユニットを備えた照明装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080316391A1 (en) * 2007-06-22 2008-12-25 Innolux Display Corp. Backlight module with light source fixing structures and liquid crystal display device using same
WO2011001753A1 (fr) * 2009-07-03 2011-01-06 シャープ株式会社 Dispositif d’éclairage, dispositif d’affichage et dispositif de réception de télévision
WO2011004643A1 (fr) * 2009-07-10 2011-01-13 シャープ株式会社 Dispositifs d'éclairage, d'affichage et de réception de télévision
JP2012529145A (ja) * 2009-06-24 2012-11-15 エルポイント カンパニー，リミテッド モジュール回路基板とフレームの結合装置及びこれを用いたバックライト

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080316391A1 (en) * 2007-06-22 2008-12-25 Innolux Display Corp. Backlight module with light source fixing structures and liquid crystal display device using same
JP2012529145A (ja) * 2009-06-24 2012-11-15 エルポイント カンパニー，リミテッド モジュール回路基板とフレームの結合装置及びこれを用いたバックライト
WO2011001753A1 (fr) * 2009-07-03 2011-01-06 シャープ株式会社 Dispositif d’éclairage, dispositif d’affichage et dispositif de réception de télévision
WO2011004643A1 (fr) * 2009-07-10 2011-01-13 シャープ株式会社 Dispositifs d'éclairage, d'affichage et de réception de télévision

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017201008A1 (fr) * 2016-05-16 2017-11-23 GE Lighting Solutions, LLC Assemblage par encliquetage de cartes à del dans des luminaires
JP2020053157A (ja) * 2018-09-25 2020-04-02 不二サッシ株式会社 Ｌｅｄモジュールユニットを備えた照明装置
JP7311255B2 (ja) 2018-09-25 2023-07-19 不二サッシ株式会社 Ｌｅｄモジュールユニットを備えた照明装置

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