WO2022239789A1 - 配線部材と、この配線部材を用いる装置 - Google Patents
配線部材と、この配線部材を用いる装置 Download PDFInfo
- Publication number
- WO2022239789A1 WO2022239789A1 PCT/JP2022/019888 JP2022019888W WO2022239789A1 WO 2022239789 A1 WO2022239789 A1 WO 2022239789A1 JP 2022019888 W JP2022019888 W JP 2022019888W WO 2022239789 A1 WO2022239789 A1 WO 2022239789A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wiring member
- conductor layer
- identification mark
- fpc
- layer
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims abstract description 42
- 239000010410 layer Substances 0.000 description 72
- 238000005286 illumination Methods 0.000 description 14
- 230000003014 reinforcing effect Effects 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 4
- 229920001721 polyimide Polymers 0.000 description 4
- 239000009719 polyimide resin Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 4
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
Definitions
- the present disclosure relates to a wiring member and a device using this wiring member.
- FIG. 8 we have conventionally connected two circuit boards 200 and 300 using an FPC 100 having terminals at both ends. Since this FPC 100 has different specifications (thickness, etc.) according to the signal that each signal line conducts, one terminal 101 of the FPC 100 is connected to the circuit board 200, and the other terminal 102 of the FPC 100 is connected to the circuit. It must be connected to the substrate 300 .
- the shapes of the terminals at both ends are symmetrical, and the connectors 201 and 301 of the circuit board 200 and the circuit board 300 are also common parts. , and the other terminal 102 can be similarly connected to circuit board 200 or circuit board 300 . As a result, there is a problem that the signal cannot be transmitted correctly.
- the present invention has been made in view of such points, and it is an object of the present invention to provide a wiring member capable of forming an identification mark at low cost and a device using this wiring member.
- the wiring member 14 of the present disclosure includes a base portion 51 and a first conductor layer 52 having an electrode portion 52a formed on one side of the base portion 51 and having ends 14a and 14b exposed to the outside. , a first cover layer 54 formed on the outer surface of the first conductor layer 52, and an electromagnetic shielding layer 57 formed on the outer surface of the first cover layer 54, wherein the electromagnetic shielding The layer 57 is characterized by having an identification mark 57a which is partly removed to expose the first cover layer 54. As shown in FIG.
- the device of the present disclosure includes a base 51, a first conductor layer 52 having an electrode portion 52a formed on one side of the base 51 and exposing ends 14a and 14b to the outside, and It has a first cover layer 54 formed on the outer surface of the first conductor layer 52 and an electromagnetic wave shield layer 57 formed on the outer surface of the first cover layer 54, and the electromagnetic wave shield layer 57 is a wiring member 14 having an identification mark 57a from which a portion of the first cover layer 54 is exposed; and circuit boards 25a and 13 having connection members 25c and 13a for connecting the wiring members 14, and the circuit boards 25a and 13 are arranged around the connection members 25c and 13a so as to correspond to the identification marks 57a. It is characterized by having an identification mark 25d. characterized by
- FIG. 2 is a diagram showing a configuration of a projector and a circuit board
- FIG. 4 is a diagram showing an FPC in a state of being connected to two circuit boards
- FIG. 4 is a cross-sectional view of the FPC taken along line AA of FIG. 3
- FIG. 6 is a diagram showing a first conductor layer in the rear view of the FPC of FIG. 5
- FIG. 4 is a back view of the FPC of FIG. 3
- the present disclosure relates to a wiring member and a device using this wiring member, and can be applied, for example, to a wiring member used in an instrument device mounted on a moving body equipped with automobiles, motorcycles, agricultural machinery, and construction machinery. .
- a wiring member according to an embodiment of the present disclosure will be described below with reference to FIGS. 1 to 6, taking a head-up display mounted on a vehicle as an example.
- a head-up display 1 (HUD) is mounted on a vehicle and projects display light L toward a windshield 2, which is a transmissive and reflective member of the vehicle, to project a virtual image V.
- HUD head-up display 1
- the HUD 1 is placed below the windshield 2 of the vehicle.
- Display light L is generated by a projector 10 inside the head-up display 1 .
- the generated display light L is transmitted/reflected by the optical system (screen 11, concave mirror 12) and projected onto the windshield 2 through the opening of the housing.
- An occupant (user) 4 can view the display light L reflected on the windshield 2 from the eye point 3, and can see the rectangular virtual image V several meters away from the viewpoint.
- the virtual image V is highly necessary to call the attention of the occupant 4, such as vehicle information such as speed and engine speed, route guidance display such as turn-by-turn and map, and warning display such as blind side indicator and speed limit warning. Information is displayed. This provides a driving environment in which the need for the occupant 4 to move the viewpoint and adjust the focal length of the eye is reduced.
- the HUD 1 is electrically connected to the vehicle by connecting the circuit board (circuit board) 13 to a CAN (Controller Area Network) provided in the vehicle. Electronic devices such as various ECUs mounted on a vehicle are connected to the CAN via a bus line.
- the HUD 1 acquires information (vehicle information such as vehicle speed information, operation information such as position information, etc.) necessary for determining the display mode of the virtual image V by communicating with the electronic device. , controls the projector 10 and the concave mirror 12 to project the virtual image V.
- the projector 10 emits display light L toward the screen 11 .
- the screen 11 is composed of a transmissive screen using a microlens array or a diffusion plate, and forms an image and diffuses the display light L emitted to the projector 10 .
- the projector 10 is electrically connected to a circuit board 13 by an FPC (wiring member) 14 .
- the concave mirror 12 is formed by evaporating silver or the like onto a resin or metal substrate, and is a reflecting member that magnifies the display light L and reflects the display light L toward the windshield 2 .
- the concave mirror 12 has a drive section (not shown).
- the drive section is electrically connected to a circuit board 13 having control means to change the angle of the concave mirror 12 and position the virtual image V to a desired degree.
- the circuit board 13 is made of a rigid wiring board, such as FR-4 (Flame Retardant-4), which is made by applying a wiring pattern to a flat plate-shaped glass epoxy base material.
- a microcomputer provided with a storage unit such as a ROM and a RAM (not shown) used for, etc., a CPU for arithmetic processing according to the predetermined program, and an input/output interface and the like.
- the circuit board 13 forms an image to be displayed on the display means (the projector 10 and the screen 11), controls the display of the display means, and controls the illuminance of the lighting means based on the vehicle information received from the external on-vehicle equipment. do.
- the configuration of the projector 10 is shown in FIG.
- the projector 10 includes a light source 20 , a dichroic mirror 21 , a plane mirror 22 , a convex lens 23 , a prism 24 , a DMD unit 25 , a PD unit 26 , an FPC 27 , a projection optical system 30 , a housing 40 and a case 41 .
- the light source 20 emits illumination light.
- the light source 20 is accompanied by a dichroic mirror 21 to emit illumination light in a field sequential manner.
- the light source 20 has a red light source 20r, a green light source 20g, and a blue light source 20b
- the dichroic mirror 21 has dichroic mirrors 21r, 21g, and 21b that transmit or reflect each color light as shown in FIG. .
- the light source 20 can be configured with an LED (Light Emitting Diode).
- the light source 20 sequentially lights up in response to signals transmitted from the electrically connected circuit board 13 , and emits light of each color toward the dichroic mirror 21 .
- the dichroic mirror 21 is a reflection-transmission member capable of transmitting or reflecting light in a predetermined wavelength range, and guides each color light beam toward the plane mirror 22 .
- the plane mirror 22 can have a structure in which the surface of a resin or glass substrate is plated with silver or the like, for example, and reflects the illumination light on the reflecting surface 22a.
- the convex lens 23 is made of translucent synthetic resin, is formed in a lens shape, and converges light rays incident parallel to the optical axis toward a focal point.
- the prism 24 is made of translucent synthetic resin, formed into a polyhedron, and splits the illumination light into detection illumination light and display illumination light.
- the prism 24 reflects part of the illumination light as detection illumination light toward the PD unit 26 (along a dashed line), while part of the illumination light is transmitted in the direction of the DMD unit 25 as display illumination light.
- the DMD unit 25 spatially modulates the display illumination light (selectively reflects it onto the spectral plane) based on the image information input from the electrically connected circuit board 13, thereby generating the display light L including the vehicle information. It is an output imager.
- the DMD unit 25 has a DMD board (second circuit board) 25a and a DMD 25b.
- the DMD 25b is a digital micromirror device, and is a reflective image forming element that forms an image by selectively reflecting display illumination light.
- the DMD board 25a is a rigid wiring board configured in the same manner as the circuit board 13, and is electrically connected to the circuit board 13 by the FPC 14.
- the DMD 25b provided on the surface on which the display illumination light is incident is the same as the circuit board 13. Connect electrically.
- the DMD 25b reflects light in a predetermined direction by changing the angles of minute mirrors arranged in a matrix on the incident surface in accordance with a control signal from the electrically connected circuit board 13 .
- the PD unit 26 is a light amount detector that has a PD substrate 26a and a PD 26b and detects the amount of illumination light.
- the PD board 26 a is a circuit board connected to the DMD board 25 a via the FPC 27 and indirectly connected to the circuit board 13 .
- a PD 26b is an applied light amount detector such as a photodiode.
- the projection optical system 30 is an optical system having at least one lens for imaging the display light L reflected by the prism 24 on the screen 11 .
- the projection optical system 30 emits the display light L reflected by the prism 24 toward the screen 11 .
- the housing 40 is made of a dark-colored resin molding and accommodates the light source 20, the dichroic mirror 21, the plane mirror 22, the convex lens 23, the prism 24, the DMD unit 25, and the PD unit 26. These are fitted, locked, and adhered. , and fixed to the relative positions shown in FIG. 2 by known means such as screwing.
- the FPC 14 has one end 14a connected to a connector (connecting member) 25c of the DMD board 25a and the other end 14b connected to a connector (connecting member) 13a of the circuit board 13. .
- the connector 25c and the connector 13a are made of rectangular parallelepiped synthetic resin and mounted on the DMD board 25a and the circuit board 13, respectively.
- the connector 25c and the connector 13a receive and lock the one end 14a and the other end 14b of the FPC 14, respectively.
- the connector 25c and the connector 13a have terminal portions conductively connected to circuit patterns that contact the electrode portions 52a.
- the FPC 14 achieves electrical conduction between the DMD board 25a and the circuit board 13 by contact between the terminal portion and the electrode portion 52a.
- the FPC 14 is formed on the first conductor layer 52 formed on one surface (front surface) of the base 51 and on the opposite surface (rear surface) of the first conductor layer 52 of the base 51.
- the second conductor layer 53 and the second cover layer 55 on the rear side of the first conductor layer 52 are removed (notched) to expose both ends of the first conductor layer 52 to the outside. It has an electrode portion 52a.
- the FPC 14 has a reinforcing plate portion 56 on the outer surface (front surface) of the first cover layer 54 opposite to the electrode portion 52a.
- the FPC 14 is formed to have the same external shape at both ends.
- the FPC 14 has an electromagnetic wave shield layer 57 formed on the outer surface (front surface) of the first cover layer 54 where the reinforcing plate portion 56 is not formed.
- the base portion 51 is made of an orange-colored polyimide resin film having a thickness of about 20 ⁇ m, and serves as a base material for forming the first conductor layer 52 and the second conductor layer 53 .
- the first conductor layer 52 and the second conductor layer 53 are made of electrolytic copper foil with a thickness of about 18 ⁇ m.
- the first conductor layer 52 has a plurality of circuit patterns 52b that linearly connect a plurality of electrode portions 52a at both ends and transmit high-frequency electric signals between the electrode portions 52a at both ends. have.
- the width (thickness) of each circuit pattern 52b is adjusted according to a specific signal (impedance) in order to transmit high-frequency electrical signals at high speed, and is affected by external noise (electromagnetic waves). is a pattern that cannot be correctly signaled.
- the first conductor layer 52 has a wide circuit pattern 52c that is wider than the circuit pattern 52b by combining (combining) a plurality of circuit patterns 52b.
- a power supply line, a ground line, a dummy line, or the like can be applied to the wide circuit pattern 52c.
- the second conductor layer 53 is formed in a mesh pattern to prevent external noise from entering the first conductor layer 52 from the second conductor layer 53 side.
- the pattern shape of the second conductor layer 53 various shapes other than mesh can be applied.
- the first cover layer 54 and the second cover layer 55 are made of a polyimide resin film having a thickness of about 20 ⁇ m and being highly flexible and colored bright orange.
- the first cover layer 54 and the second cover layer 55 are members that protect the first conductor layer 52 and the second conductor layer 53 from the outside.
- the reinforcing plate portion 56 is made of a brown-colored polyimide resin plate having a thickness of about 125 ⁇ m.
- the reinforcing plate portion 56 is made of a polyimide resin plate having higher hardness than the first cover layer 54 and the second cover layer 55 .
- the electromagnetic wave shield layer 57 is made of a black-colored resin film having a thickness of about 22 ⁇ m and containing, for example, silver (Ag) paste.
- the electromagnetic wave shield layer 57 prevents noise from entering the first conductor layer 52 from the first conductor layer 52 side.
- the electromagnetic wave shield layer 57 has an identification mark 57a.
- the identification mark 57a is a visible mark in which a part of the electromagnetic wave shield layer 57 is removed in a circular shape and the first cover layer 54 is exposed in a circular shape.
- the identification mark 57a is not formed at a position facing the circuit pattern 52b, but is formed only at a position facing the wide circuit pattern 52c.
- the identification mark 57a is formed at a position closer to one end 14a of the FPC 14 .
- the identification mark 57a is formed with a width smaller than the width of the wide circuit pattern 52c so as to fit within the width direction of the wide circuit pattern 52c.
- the FPC 14 has a pair of notch portions in which the first cover layer 54 and the reinforcing plate portion 56 are recessed in a substantially U-shaped concave shape on the side surface in the direction connecting the one end portion 14a and the other end portion 14b. 14d.
- the connector 25c and the connector 13a have a protrusion inside that fits into the notch 14d.
- the DMD board 25a has a board-side identification mark (corresponding identification mark) 25d around the connector 25c.
- the substrate-side identification mark 25d is formed by removing part of the surface layer of the DMD substrate 25a into a round shape similar to the identification mark 57e.
- the surface layer is a so-called solder resist made of green insulating ink.
- the board-side identification mark 25d is visually recognized in the color of the conductor layer.
- the conductor layer is a bright reddish-orange conductive so-called copper foil such as rolled copper foil or electrolytic copper foil.
- the board-side identification mark 25d is formed on the identification mark 57a side of the connector 25c so as to correspond to the identification mark 57a in the width direction of the FPC 14 .
- one end 14a and the other end 14b of the FPC 14 are formed to have the same outer shape, the one end 14a can be attached to both the connector 25c and the connector 13a. Similarly, the other end 14b can be assembled with either connector 25c or connector 13a. Therefore, an erroneous combination occurs.
- Whether or not the one end 14a and the connector 25c are normally inserted is automatically detected by photographing the insertion state of both with a video camera. For example, by detecting the presence and shape of the identification mark 57a and the substrate-side identification mark 25d, it is determined whether the combination of both is correct. Also, the distance W between the identification mark 57a and the substrate-side identification mark 25d is detected, and whether or not the two are properly fitted is judged based on whether or not the distance W is within the threshold value.
- the presence or absence and shape of the identification mark 57a are determined by comparing the colors of the electromagnetic wave shielding layer 57 and the first cover layer 54 and determining the contrast (difference between bright and dark portions of the image). Since the electromagnetic wave shield layer 57 is black and the first cover layer 54 is bright orange, the contrast is increased and erroneous detection can be prevented.
- the presence and shape of the board-side identification mark 25d is determined by comparing the colors of the surface layer and the conductor layer and by the contrast. Since the surface layer is green and the conductor layer is reddish orange, the contrast is increased and erroneous detection can be prevented.
- the identification mark 57a and the substrate-side identification mark 25d may be square-shaped identification marks 57b and substrate-side identification marks 25e instead of round-shaped identification marks 57b and 25e.
- a triangular identification mark 57e may be provided on the other end 14b side of the FPC 14, and a triangular board-side identification mark 25f having the same shape as the identification mark 57e may be provided around the connector 13a.
- the FPC 14 was a flexible printed wiring board, but it may be a flexible flat cable (FFC).
- the colors of the first cover layer 54, the second cover layer 55, the reinforcing plate portion 56, the electromagnetic wave shield layer 57, etc. of the FPC 14 can be set to arbitrary colors.
- the electromagnetic wave shield layer 57 is formed on one side, it may be formed on both sides by winding a resin film.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Structure Of Printed Boards (AREA)
Abstract
Description
前記配線部材14を接続する接続部材25c,13aを有する回路基板25a,13と、を有し、前記回路基板25a,13は、前記接続部材25c,13aの周囲に前記識別マーク57aに対応する対応識別マーク25dを有することを特徴とする。
することを特徴とする。
12 凹面鏡
10 プロジェクタ
11 スクリーン
13 回路基板(回路基板)
13a コネクタ(接続部材)
14 FPC(配線部材)
14a 一方の端部
14b 他方の端部
14d 切り欠き部
51 基部
52 第1の導体層
52a 電極部
52b 回路パターン
52c 幅広回路パターン
53 第2の導体層
54 第1のカバー層
55 第2のカバー層
56 補強板部
57 電磁波シールド層
57a 識別マーク
2 ウインドシールド
3 アイポイント
4 乗員(利用者)
20 光源
21 ダイクロイックミラー
22 平面鏡
23 凸レンズ
24 プリズム
25 MDユニット
25a DMD基板(回路基板)
25b DMD
25c コネクタ(接続部材)
25d 基板側識別マーク(対応識別マーク)
26 PDユニット
27 FPC
30 投射光学系
40 筐体
41 ケース
L 表示光
V 虚像
W 距離
Claims (7)
- 基部と、
前記基部の片面に形成され、端部が外部に露出する電極部を有する第1の導体層と、
前記第1の導体層の外側面に形成される第1のカバー層と、
前記第1のカバー層の外側面に形成される電磁波シールド層と、を有し、
前記電磁波シールド層は前記第1のカバー層の一部が露出する識別マークを有することを特徴とする配線部材。 - 前記第1の導体層は、複数本の回路パターンと、前記回路パターンよりも幅の広い幅広回路パターンと、を有し、
前記識別マークは、前記幅広回路パターンに対向する位置に形成されることを特徴とする請求項1に記載の配線部材。 - 前記幅広回路パターンは、前記回路パターンよりも外部のノイズの影響を受けても支障のないパターンであることを特徴とする請求項2に記載の配線部材。
- 前記基部の前記第1の導体層の反対側の面に形成される第2の導体層と、
前記第2の導体層の外側面に形成される第2のカバー層と、を有し、
前記第2の導体層は、外部のノイズの侵入を防止するパターンに形成されることを特徴とする請求項1に記載の配線部材。 - 前記端部の一方の端部と他方の端部は、同じ形状に形成されることを特徴とする請求項1に記載の配線部材。
- 前記識別マークは、前記一方の端部側の位置に形成されることを特徴とする請求項5に記載の配線部材。
- 請求項1に記載の配線部材と、
前記配線部材とを接続する接続部材を有する回路基板と、を有し、
前記回路基板は、前記接続部材の周囲に前記識別マークに対応する対応識別マークを有することを特徴とする装置。
Priority Applications (3)
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JP2023521215A JPWO2022239789A1 (ja) | 2021-05-12 | 2022-05-11 | |
DE112022002535.2T DE112022002535T5 (de) | 2021-05-12 | 2022-05-11 | Verdrahtungsbauteil und Vorrichtung unter Verwendung dieses Verdrahtungsbauteils |
CN202280033981.2A CN117296457A (zh) | 2021-05-12 | 2022-05-11 | 配线部件和使用该配线部件的装置 |
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JP2021080700 | 2021-05-12 | ||
JP2021-080700 | 2021-05-12 |
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WO2022239789A1 true WO2022239789A1 (ja) | 2022-11-17 |
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PCT/JP2022/019888 WO2022239789A1 (ja) | 2021-05-12 | 2022-05-11 | 配線部材と、この配線部材を用いる装置 |
Country Status (4)
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JP (1) | JPWO2022239789A1 (ja) |
CN (1) | CN117296457A (ja) |
DE (1) | DE112022002535T5 (ja) |
WO (1) | WO2022239789A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63172169U (ja) * | 1987-04-28 | 1988-11-09 | ||
JP2003188039A (ja) * | 2001-12-20 | 2003-07-04 | Murata Mfg Co Ltd | 積層型電子部品 |
JP2011009684A (ja) * | 2009-06-26 | 2011-01-13 | Itei Kofun Yugenkoshi | 挿入位置決め構造を有する回路配線 |
WO2017065094A1 (ja) * | 2015-10-13 | 2017-04-20 | 株式会社村田製作所 | 多層基板 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000252598A (ja) | 1999-03-02 | 2000-09-14 | Fuji Photo Film Co Ltd | フレキシブルプリント配線板 |
-
2022
- 2022-05-11 WO PCT/JP2022/019888 patent/WO2022239789A1/ja active Application Filing
- 2022-05-11 CN CN202280033981.2A patent/CN117296457A/zh active Pending
- 2022-05-11 DE DE112022002535.2T patent/DE112022002535T5/de active Pending
- 2022-05-11 JP JP2023521215A patent/JPWO2022239789A1/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63172169U (ja) * | 1987-04-28 | 1988-11-09 | ||
JP2003188039A (ja) * | 2001-12-20 | 2003-07-04 | Murata Mfg Co Ltd | 積層型電子部品 |
JP2011009684A (ja) * | 2009-06-26 | 2011-01-13 | Itei Kofun Yugenkoshi | 挿入位置決め構造を有する回路配線 |
WO2017065094A1 (ja) * | 2015-10-13 | 2017-04-20 | 株式会社村田製作所 | 多層基板 |
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Publication number | Publication date |
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DE112022002535T5 (de) | 2024-02-29 |
CN117296457A (zh) | 2023-12-26 |
JPWO2022239789A1 (ja) | 2022-11-17 |
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