JP7337065B2 - 光強度適応型led側壁 - Google Patents
光強度適応型led側壁 Download PDFInfo
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- JP7337065B2 JP7337065B2 JP2020534195A JP2020534195A JP7337065B2 JP 7337065 B2 JP7337065 B2 JP 7337065B2 JP 2020534195 A JP2020534195 A JP 2020534195A JP 2020534195 A JP2020534195 A JP 2020534195A JP 7337065 B2 JP7337065 B2 JP 7337065B2
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Images
Classifications
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- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L27/15—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission
- H01L27/153—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars
- H01L27/156—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components having potential barriers, specially adapted for light emission in a repetitive configuration, e.g. LED bars two-dimensional arrays
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- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
- B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
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- B60Q1/1423—Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
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- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
- F21S41/13—Ultraviolet light; Infrared light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
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- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
- F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
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- F21S41/151—Light emitting diodes [LED] arranged in one or more lines
- F21S41/153—Light emitting diodes [LED] arranged in one or more lines arranged in a matrix
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
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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
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
- F21S41/645—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices by electro-optic means, e.g. liquid crystal or electrochromic devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
- F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- G—PHYSICS
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- 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
- G02F1/0126—Opto-optical modulation, i.e. control of one light beam by another light beam, not otherwise provided for in this subclass
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- G—PHYSICS
- G02—OPTICS
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- 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
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- G02F1/0147—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 thermo-optic effects
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- 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
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- G02F1/015—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 semiconductor elements having potential barriers, e.g. having a PN or PIN junction
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- H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/05—Special features for controlling or switching of the light beam
- B60Q2300/056—Special anti-blinding beams, e.g. a standard beam is chopped or moved in order not to blind
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q2300/00—Indexing codes for automatically adjustable headlamps or automatically dimmable headlamps
- B60Q2300/40—Indexing codes relating to other road users or special conditions
- B60Q2300/45—Special conditions, e.g. pedestrians, road signs or potential dangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
- F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
- F21S41/63—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates
- F21S41/64—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on refractors, filters or transparent cover plates by changing their light transmissivity, e.g. by liquid crystal or electrochromic devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
- F21V23/004—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board
- F21V23/005—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array arranged on a substrate, e.g. a printed circuit board the substrate is supporting also the light source
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/02—Arrangement of electric circuit elements in or on lighting devices the elements being transformers, impedances or power supply units, e.g. a transformer with a rectifier
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- 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
- G02F1/15—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 an electrochromic effect
- G02F1/163—Operation of electrochromic cells, e.g. electrodeposition cells; Circuit arrangements therefor
-
- 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
- G02F2203/00—Function characteristic
- G02F2203/01—Function characteristic transmissive
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- G—PHYSICS
- G02—OPTICS
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- G02F2203/00—Function characteristic
- G02F2203/02—Function characteristic reflective
-
- G—PHYSICS
- G02—OPTICS
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- G02F2203/00—Function characteristic
- G02F2203/03—Function characteristic scattering
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Description
Claims (19)
- ピクセルアレイデバイスであって、当該デバイスは、
ピクセルのアレイであって、各ピクセルが、側壁を有しており、且つn型領域、活性領域、p型領域、及び前記活性領域によって放出された光の経路内の波長変換層を含む、ピクセルのアレイと、
前記アレイ内の第1のピクセルの側壁に取り付けられた動的な光アイソレーション材料であって、前記側壁は、前記第1のピクセルと前記アレイ内の別のピクセルとの間に配置され、前記動的な光アイソレーション材料は光の透過を妨げる光学的状態と該光を透過させる第2の光学的状態との間で切り替え可能であり、状態トリガに基づいて前記光学的状態と前記第2の光学的状態との間で切り替わるように構成される動的な光アイソレーション材料と、を含み、
前記動的な光アイソレーション材料は前記波長変換層の側壁に取り付けられる、
デバイス。 - 前記光の透過を妨げるように構成される前記光学的状態により、前記動的な光アイソレーション材料を光が通過するのが防止され、前記第2の光学的状態により、前記動的な光アイソレーション材料を光が通過するのを可能にする、請求項1に記載のデバイス。
- 前記光の透過を妨げるように構成される前記光学的状態により、前記動的な光アイソレーション材料を通過する光を散乱させ、前記第2の光学的状態により、前記動的な光アイソレーション材料を光が通過するのを可能にする、請求項1に記載のデバイス。
- 前記動的な光アイソレーション材料は、サーモクロミック材料、サーモトロピック材料、エレクトロクロミック材料、及びフォトクロミック材料のうちの1つである、請求項1に記載のデバイス。
- 前記動的な光アイソレーション材料の外側に取り付けられた第2の動的な光アイソレーション材料を含み、該第2の動的な光アイソレーション材料は、サーモクロミック材料、サーモトロピック材料、エレクトロクロミック材料、及びフォトクロミック材料のうちの1つである、請求項4に記載のデバイス。
- 前記状態トリガは、光学的アドレス指定、電気的アドレス指定、又は温度変化のうちの1つである、請求項1に記載のデバイス。
- 前記状態トリガは、前記アレイ内のピクセルによって提供される、請求項1に記載のデバイス。
- 前記状態トリガは、前記アレイ内の2つ以上のピクセルの組合せによって提供される、請求項1に記載のデバイス。
- 前記第1のピクセルの上面及び/又は底面に取り付けられた第2の動的な光アイソレーション材料を含む、請求項1に記載のデバイス。
- 前記光学的状態は、不透明状態、散乱状態、及び反射状態のうちの1つで光の透過を妨げるように構成される、請求項1に記載のデバイス。
- 前記ピクセルのアレイは、ピクセルのグループにセグメント化され、各グループは個々にアドレス指定可能である、請求項1に記載のデバイス。
- 方法であって、当該方法は、
請求項1に記載の前記ピクセルアレイデバイスの前記第1のピクセルをアドレス指定して、前記第1のピクセルの前記活性領域を発光させるステップと、
前記第1のピクセルの側壁に取り付けられた前記動的な光アイソレーション材料に状態トリガを送って、前記動的な光アイソレーション材料の光学的状態を切り替えるステップと、を含む、
方法。 - 方法であって、当該方法は、
請求項11に記載の前記ピクセルアレイデバイスの第1のグループのピクセルをアドレス指定して、前記第1のグループ内の前記ピクセルの前記活性領域を発光させるステップと、
請求項11に記載の前記ピクセルアレイデバイスの第2のグループのピクセルをアドレス指定しないステップであって、前記第2のグループのピクセルは前記第1のグループのピクセルとは異なる、ステップと、
前記第1のグループのピクセル内の隣接するピクセル同士の間のピクセル側壁に取り付けられた前記動的な光アイソレーション材料に状態トリガを送って、前記動的な光アイソレーション材料の光学的状態を切り替えるステップと、を含む、
方法。 - ピクセルアレイデバイスであって、当該デバイスは、
ピクセルのアレイであって、各ピクセルが、側壁を有しており、且つn型領域、活性領域、p型領域、及び前記活性領域によって放出された光の経路内の波長変換層を含み、前記ピクセルのアレイはピクセルのグループにセグメント化され、各グループは個々にアドレス指定可能である、ピクセルのアレイと、
前記アレイ内の前記ピクセルの側壁に取り付けられたサーモクロミック材料であって、前記側壁は前記アレイ内の隣接するピクセル同士の間に配置され、前記サーモクロミック材料の温度変化の結果として透明状態と不透明状態との間で切り替え可能であるサーモクロミック材料と、を含み、
前記サーモクロミック材料は前記波長変換層の側壁に取り付けられる、
デバイス。 - 前記透明状態において、光の透過率が95%である、請求項14に記載のデバイス。
- 方法であって、当該方法は、
請求項14に記載の前記デバイスの第1のグループのピクセルをアドレス指定して、前記第1のグループ内の前記ピクセルの前記活性領域を発光させ、且つ前記第1のグループ内の前記ピクセルの側壁に取り付けられた前記サーモクロミック材料を透明状態に切り替えるステップと、
請求項14に記載の前記デバイスの第2のグループのピクセルをアドレス指定しないステップであって、前記第2のグループ内の前記ピクセルの側壁に取り付けられた前記サーモクロミック材料は不透明状態のままであり、前記第2のグループのピクセルは前記第1のグループのピクセルとは異なる、ステップと、を含む、
方法。 - ピクセルアレイデバイスであって、当該デバイスは、
ピクセルのアレイであって、各ピクセルが、側壁を有しており、且つn型領域、活性領域、p型領域、及び前記活性領域によって放出された光の経路内の波長変換層を含み、前記ピクセルのアレイはピクセルのグループにセグメント化され、各グループは個々にアドレス指定可能である、ピクセルのアレイと、
前記アレイ内の前記ピクセルの側壁に取り付けられたフォトクロミック材料であって、前記側壁は前記アレイ内の隣接するピクセル同士の間に配置され、透明状態と不透明状態との間で切り替え可能であるフォトクロミック材料と、を含み、
前記フォトクロミック材料は前記波長変換層の側壁に取り付けられる、
デバイス。 - 前記透明状態において、光の透過率が95%である、請求項17に記載のデバイス。
- 方法であって、当該方法は、
請求項17に記載の前記デバイスの第1のグループのピクセルをアドレス指定して、前記第1のグループ内の前記ピクセルの前記活性領域を発光させるステップと、
前記第1のグループ内の前記ピクセルの側壁に取り付けられた前記フォトクロミック材料を照らして、該フォトクロミック材料を透明状態に切り替えるステップと、
請求項17に記載の前記デバイスの第2のグループのピクセルをアドレス指定しないステップであって、前記第2のグループ内の前記ピクセルの側壁に取り付けられた前記フォトクロミック材料は不透明状態のままであり、前記第2のグループのピクセルは前記第1のグループのピクセルとは異なる、ステップと、を含む、
方法。
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