JP7178424B2 - 導光板、バックライトモジュール及び表示装置 - Google Patents
導光板、バックライトモジュール及び表示装置 Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
-
- 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
- F21V5/00—Refractors for light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
-
- 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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1601—Constructional details related to the housing of computer displays, e.g. of CRT monitors, of flat displays
- G06F1/1607—Arrangements to support accessories mechanically attached to the display housing
- G06F1/1609—Arrangements to support accessories mechanically attached to the display housing to support filters or lenses
-
- 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
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0063—Means for improving the coupling-out of light from the light guide for extracting light out both the major surfaces of the light guide
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Push-Button Switches (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
本発明の実施例によれば、上記の光学面は、光出射面又は反射面である。
110...光源
120...導光板
121...本体
121a...光入射面
121b...反射面
121c...光出射面
121d...逆光入射面
122...ストリップ状構造
123...調光構造
123a...第1光作用面
123b...第2光作用面
200...バックライトモジュール
220...導光板
221...本体
221a...光入射面
221b...反射面
221c...光出射面
221d...逆光入射面
222...ストリップ状構造
223...調光構造
223a...第1光作用面
223b...第2光作用面
300...バックライトモジュール
320...導光板
321...本体
321a...光入射面
322...ストリップ状構造
323...調光構造
400...バックライトモジュール
420...導光板
421...本体
421a...光入射面
422...ストリップ状構造
423...調光構造
500...表示装置
510...表示パネル
600...微細構造
610...第1光学面
620...第2光学面
630...側部
α1...第1夾角
β1...第2夾角
K1...刃具
M1...金型
P1...間隔
P2...間隔
Claims (7)
- 光入射面と前記光入射面に接続されている光学面とを備えた本体と、
前記光学面上に設けられている複数のストリップ状構造と、
ストリップ状構造の間に設けられ、それぞれが第1光作用面と前記第1光作用面に接続されている第2光作用面とを備えた複数の調光構造と、
を含み、
前記第1光作用面は、前記光入射面に向けられ、前記第2光作用面は、前記本体における前記光入射面に対向する側に向けられ、前記第1光作用面と前記第2光作用面とは、傾斜方向が異なる傾斜面であって、非対称状に形成され、前記第1光作用面は、前記光学面に対して第1夾角を有し、前記第2光作用面は、前記光学面に対して第2夾角を有し、前記第1夾角と前記第2夾角とは、いずれも鋭角であり、
各ストリップ状構造の延在方向は、前記光入射面の延在方向に対して垂直であり、
各調光構造は、前記光入射面の延在方向に対して垂直に配列されており、
各調光構造の前記第1光作用面と前記第2光作用面が相互に接続されて境界線を形成し、前記境界線は、前記入光面に平行であり、
各調光構造の前記第1光作用面と前記第2光作用面は両側辺を有し、前記側辺は、前記境界線に平行せず、隣接する前記ストリップ状構造の一面に接続されており、
各調光構造の底部の幅は、各ストリップ状構造の延在方向に沿って、前記調光構造と前記光入射面との間の距離が増加するにつれて増加する、
ことを特徴とする導光板。 - 光入射面と前記光入射面に接続されている光学面とを備えた本体と、
前記光学面上に設けられている複数のストリップ状構造と、
ストリップ状構造の間に設けられ、それぞれが第1光作用面と前記第1光作用面に接続されている第2光作用面とを備えた複数の調光構造と、
を含み、
前記第1光作用面は、前記光入射面に向けられ、前記第2光作用面は、前記本体における前記光入射面に対向する側に向けられ、前記第1光作用面と前記第2光作用面とは、傾斜方向が異なる傾斜面であって、非対称状に形成され、前記第1光作用面は、前記光学面に対して第1夾角を有し、前記第2光作用面は、前記光学面に対して第2夾角を有し、前記第1夾角と前記第2夾角とは、いずれも鋭角であり、
各ストリップ状構造の延在方向は、前記光入射面の延在方向に対して垂直であり、
各調光構造は、前記光入射面の延在方向に対して垂直に配列されており、
各調光構造の前記第1光作用面と前記第2光作用面が相互に接続されて境界線を形成し、前記境界線は、前記入光面に平行であり、
各調光構造の前記第1光作用面と前記第2光作用面は両側辺を有し、前記側辺は、前記境界線に平行せず、隣接する前記ストリップ状構造の一面に接続されており、
前記調光構造同士の間隔は、各ストリップ状構造の延在方向に沿って、前記調光構造と前記光入射面との間の距離が増加するにつれて減少する、
ことを特徴とする導光板。 - 前記第1夾角と前記第2夾角とは異なり、
前記第1夾角は前記第2夾角より大きい、
ことを特徴とする請求項1又は2に記載の導光板。 - 前記ストリップ状構造は、円弧形状である、
ことを特徴とする請求項1乃至3のいずれか1項に記載の導光板。 - 前記本体は、前記光入射面に対向する逆光入射面を有し、
前記光学面は、光出射面又は反射面であり、前記反射面から前記光出射面に向かう方向を第1方向とし、前記第1方向に垂直で、かつ前記光入射面から前記逆光入射面に向かう方向を第2方向とし、
各調光構造における前記第1光作用面と前記第2光作用面が相互に接続される位置と、前記光学面との間の前記第1方向に沿った距離は、前記光入射面から前記逆光入射面に向かう方向である前記第2方向において、一致するように維持される、
ことを特徴とする請求項1乃至4のいずれか1項に記載の導光板。 - 請求項1乃至5のいずれかに記載の導光板と、
前記導光板の前記光入射面に隣接して設置されている光源と、
を含むことを特徴とするバックライトモジュール。 - 請求項1乃至5のいずれかに記載の導光板と、
前記導光板の前記光入射面に隣接して設置されている光源と、
前記導光板の前方に隣接して設置されている表示パネルと、
を含むことを特徴とする表示装置。
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PCT/CN2018/086694 WO2019218113A1 (zh) | 2018-05-14 | 2018-05-14 | 导光板、背光模组及显示装置 |
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JP (1) | JP7178424B2 (ja) |
KR (1) | KR102570053B1 (ja) |
CN (2) | CN110488408A (ja) |
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GB201717331D0 (en) * | 2017-10-21 | 2017-12-06 | Optrical Ltd | Light guides |
KR102570053B1 (ko) | 2018-05-14 | 2023-08-23 | 라디안트 (광저우) 옵토-엘렉트로닉스 컴퍼니 리미티드 | 도광판, 백라이트 모듈 및 디스플레이 장치 |
CN111010878B (zh) * | 2018-08-06 | 2021-06-04 | 瑞仪(广州)光电子器件有限公司 | 导光板、背光模组及显示装置 |
TWI765313B (zh) * | 2020-08-10 | 2022-05-21 | 瑞儀光電股份有限公司 | 背光模組及顯示裝置 |
WO2022104663A1 (zh) | 2020-11-19 | 2022-05-27 | 瑞仪光电(苏州)有限公司 | 导光板、背光模组及显示装置 |
TWI771824B (zh) * | 2020-12-11 | 2022-07-21 | 達運精密工業股份有限公司 | 背光模組和導光板的製作方法 |
JP2022129946A (ja) * | 2021-02-25 | 2022-09-06 | シャープディスプレイテクノロジー株式会社 | 照明装置及び表示装置 |
CN113655559B (zh) | 2021-09-06 | 2022-12-13 | 扬昕科技(苏州)有限公司 | 集光型导光板及显示装置 |
CN114325921B (zh) * | 2021-09-30 | 2022-08-09 | 东莞市元立电子科技有限公司 | 一种导光板 |
CN117538975A (zh) * | 2022-08-02 | 2024-02-09 | 苏州佳世达电通有限公司 | 显示装置 |
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US20210271015A1 (en) | 2021-09-02 |
KR102570053B1 (ko) | 2023-08-23 |
TW201947262A (zh) | 2019-12-16 |
WO2019218113A1 (zh) | 2019-11-21 |
TWI764261B (zh) | 2022-05-11 |
CN110488408A (zh) | 2019-11-22 |
TWI816344B (zh) | 2023-09-21 |
US11035996B2 (en) | 2021-06-15 |
US11774663B2 (en) | 2023-10-03 |
TWI707166B (zh) | 2020-10-11 |
CN117270097A (zh) | 2023-12-22 |
TW202117371A (zh) | 2021-05-01 |
KR20210009312A (ko) | 2021-01-26 |
US20230108307A1 (en) | 2023-04-06 |
TW202229948A (zh) | 2022-08-01 |
US11525952B2 (en) | 2022-12-13 |
US20200225403A1 (en) | 2020-07-16 |
JP2021532530A (ja) | 2021-11-25 |
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