JP7279538B2 - 発光装置 - Google Patents
発光装置 Download PDFInfo
- Publication number
- JP7279538B2 JP7279538B2 JP2019113581A JP2019113581A JP7279538B2 JP 7279538 B2 JP7279538 B2 JP 7279538B2 JP 2019113581 A JP2019113581 A JP 2019113581A JP 2019113581 A JP2019113581 A JP 2019113581A JP 7279538 B2 JP7279538 B2 JP 7279538B2
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- JP
- Japan
- Prior art keywords
- light emitting
- emitting device
- wiring
- substrate
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/0206—Substrates, e.g. growth, shape, material, removal or bonding
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/04—Processes or apparatus for excitation, e.g. pumping, e.g. by electron beams
- H01S5/042—Electrical excitation ; Circuits therefor
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
- G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Semiconductor Lasers (AREA)
- Production Of Multi-Layered Print Wiring Board (AREA)
Description
Leff=(L1+L2)-2×Lm ・・・ (式1)
このとき、第1配線層51を流れる駆動電流iLDの位相と、第2配線層52を流れる駆動電流iLDの位相とを逆相とすることによって相互インダクタンスLmが増大するので、実効インダクタンスLeffが減少することによる。
11 発光素子
12 駆動素子
13、13A、13B コンデンサ
14 電源
15 トランジスタ
16 GND接続端子
17 カソード接続端子
18 GNDパッド
19 カソード座
20 GND座
21 アノード座
23 半田ボール
50 基板
51 第1配線層、51A アノードパターン、51B カソードパターン、51C 回路パターン、52 第2配線層、52A アノードパターン、52B GNDパターン、53 第3層配線、54 第4層配線、55、57 プリプレグ層、56 コア層、iLD 駆動電流、Li 駆動電流ループ、Vin パルス信号、V ビア、W ボンディングワイヤ
Claims (8)
- 基板と、
前記基板上に設けられた、発光素子、当該発光素子を駆動する駆動素子、および当該発光素子と当該駆動素子とを接続する駆動配線と、
平面視において前記駆動配線と少なくとも一部が重なるように前記基板内部に設けられ、前記駆動配線と対向する前記基板内部の内部配線を介して前記発光素子に駆動電流を供給する容量素子と、
を備え、
前記容量素子は、第1の容量素子と、当該第1の容量素子よりも等価直列インダクタンスが大きい第2の容量素子とを含み、
前記第1の容量素子は、前記第2の容量素子よりも、前記基板上から前記内部配線へ流れる駆動電流の経路に近い位置に設けられている
発光装置。 - 前記容量素子は、平面視において、前記駆動配線と全てが重なるように前記基板内部に設けられている
請求項1に記載の発光装置。 - 前記容量素子は複数の容量素子を含み、
前記複数の容量素子が、前記駆動配線と少なくとも一部が重なるように前記基板内部に設けられている
請求項1に記載の発光装置。 - 前記複数の容量素子が、前記駆動配線と全てが重なるように前記基板内部に設けられている
請求項3に記載の発光装置。 - 前記容量素子は、平面視において、前記発光素子および前記駆動素子の少なくとも一方と重なるように設けられている
請求項1に記載の発光装置。 - 前記容量素子は、平面視において、前記発光素子および前記駆動素子の両方と重なるように設けられている
請求項5に記載の発光装置。 - 前記駆動配線は前記基板の表面に形成された第1配線層に設けられ、
前記内部配線は、前記第1配線層と隣接する前記基板内部の第2配線層に設けられている
請求項1から請求項6のいずれか1項に記載の発光装置。 - 前記容量素子は、前記第2配線層の内層側で前記内部配線に接続されている
請求項7に記載の発光装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019113581A JP7279538B2 (ja) | 2019-06-19 | 2019-06-19 | 発光装置 |
US16/719,932 US10789879B1 (en) | 2019-06-19 | 2019-12-18 | Light emitting device |
CN202010080884.1A CN112117635A (zh) | 2019-06-19 | 2020-02-05 | 发光装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019113581A JP7279538B2 (ja) | 2019-06-19 | 2019-06-19 | 発光装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020205390A JP2020205390A (ja) | 2020-12-24 |
JP7279538B2 true JP7279538B2 (ja) | 2023-05-23 |
Family
ID=72615039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019113581A Active JP7279538B2 (ja) | 2019-06-19 | 2019-06-19 | 発光装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10789879B1 (ja) |
JP (1) | JP7279538B2 (ja) |
CN (1) | CN112117635A (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7318305B2 (ja) * | 2019-05-17 | 2023-08-01 | 富士フイルムビジネスイノベーション株式会社 | 発光装置 |
CN113572024A (zh) * | 2021-07-13 | 2021-10-29 | Oppo广东移动通信有限公司 | 光发射器、深度模组和终端 |
WO2023139958A1 (ja) * | 2022-01-20 | 2023-07-27 | ソニーセミコンダクタソリューションズ株式会社 | 半導体レーザー装置、測距装置及び車載装置 |
CN117374726B (zh) * | 2023-12-07 | 2024-03-19 | 合肥玉卓光电科技有限公司 | 一种高集成度、大功率的智能化半导体激光电源及系统 |
Citations (3)
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JP2005252040A (ja) | 2004-03-05 | 2005-09-15 | Sony Corp | 光電変換装置、インターポーザ、及び光情報処理装置 |
US20180278011A1 (en) | 2017-03-23 | 2018-09-27 | Infineon Technologies Ag | Laser diode module |
WO2018188910A1 (de) | 2017-04-13 | 2018-10-18 | Osram Opto Semiconductors Gmbh | Halbleiterstrahlungsquelle |
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-
2019
- 2019-06-19 JP JP2019113581A patent/JP7279538B2/ja active Active
- 2019-12-18 US US16/719,932 patent/US10789879B1/en active Active
-
2020
- 2020-02-05 CN CN202010080884.1A patent/CN112117635A/zh active Pending
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JP2005252040A (ja) | 2004-03-05 | 2005-09-15 | Sony Corp | 光電変換装置、インターポーザ、及び光情報処理装置 |
US20180278011A1 (en) | 2017-03-23 | 2018-09-27 | Infineon Technologies Ag | Laser diode module |
WO2018188910A1 (de) | 2017-04-13 | 2018-10-18 | Osram Opto Semiconductors Gmbh | Halbleiterstrahlungsquelle |
Also Published As
Publication number | Publication date |
---|---|
US10789879B1 (en) | 2020-09-29 |
CN112117635A (zh) | 2020-12-22 |
JP2020205390A (ja) | 2020-12-24 |
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