JP6863804B2 - 光源モジュール及び表示装置 - Google Patents
光源モジュール及び表示装置 Download PDFInfo
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- JP6863804B2 JP6863804B2 JP2017076539A JP2017076539A JP6863804B2 JP 6863804 B2 JP6863804 B2 JP 6863804B2 JP 2017076539 A JP2017076539 A JP 2017076539A JP 2017076539 A JP2017076539 A JP 2017076539A JP 6863804 B2 JP6863804 B2 JP 6863804B2
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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
- G02B6/005—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
- 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
- G02F1/1323—Arrangements for providing a switchable viewing angle
-
- 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
- G02B6/0051—Diffusing 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
- G02B6/0056—Means for improving the coupling-out of light from the light guide for producing polarisation effects, e.g. by a surface with polarizing properties or by an additional polarizing elements
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour 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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0076—Stacked arrangements of multiple light guides of the same or different cross-sectional area
-
- 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
- G02F1/133528—Polarisers
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- 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
- G02F1/133528—Polarisers
- G02F1/133538—Polarisers with spatial distribution of the polarisation direction
-
- 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
- G02F1/13362—Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
-
- 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
- G02F1/133626—Illuminating devices providing two modes of illumination, e.g. day-night
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mathematical Physics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Polarising Elements (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
110:第一背光モジュール
111:第一側
112:第一導光板
112US:第一導光板の上表面
112DS:第一導光板の下表面
113:第二側
114:第一光源
120:第二背光モジュール
122:第二導光板
122US:第二導光板の上表面
122DS:第二導光板の下表面
124:第二光源
130:第一逆プリズム片
132:逆プリズム
132ES:入光面
132RS:反射面
134:透光基板
134US:透光基板の上表面
134DS:透光基板の下表面
140:第一吸収型偏光子
142:第一偏光透過軸
150:反射型偏光子
152:第三偏光透過軸
160:プリズム片
162:プリズム
164:透光基板
170:拡散片
180:第二逆プリズム片
190:反射片
192:第二吸収型偏光子
1922:第四偏光透過軸
200、200a、200b、200c、200d、200e、200f、200g、200h、200i:表示装置
210、210a、210b、210f、210g:表示パネル
212:第一偏光子
214、214a、214b、214f、214g:第二偏光子
2142:第二偏光透過軸
216:液晶層
220:制御モジュール
230:電源モジュール
D1:第一方向
D2:第二方向
D3:第三方向
ES1:第一入光面
ES2:第二入光面
I1:第一駆動電流
I2:第二駆動電流
L1、L1U、L1D、L1D’、L1D’’:第一光束
L2、L2U、L2U’、L2U’’、L2U’’’、L2D、L2D’:第二光束
SE、SE’:先端
Claims (15)
- 表示装置であって、
光源モジュール及び表示パネルを含み、
前記光源モジュールは、
相対する第一側及び第二側をする第一背光モジュールであって、
第一入光面を有する第一導光板;及び
前記第一入光面の近傍に配置される第一光源を有する、第一背光モジュールと、
前記第一背光モジュールの前記第二側に配置される第二背光モジュールであって、
第二入光面を有する第二導光板;及び
前記第二入光面の近傍に配置される第二光源を有する、第二背光モジュールと、
前記第一背光モジュールの前記第一側に配置され、複数の逆プリズムを含む第一逆プリズム片であって、前記複数の逆プリズムは、延伸方向へ延伸する、第一逆プリズム片と、
前記第一背光モジュールと前記第二背光モジュールとの間に配置される第一吸収型偏光子であって、前記第一吸収型偏光子は第一偏光透過軸を有し、前記第一偏光透過軸の軸方向は、前記第一吸収型偏光子と前記第二背光モジュールとの間に位置する複数の第二吸収型偏光子の各々の第四偏光透過軸の軸方向とは異なる、第一吸収型偏光子と、
を含み、
前記表示パネルは、前記光源モジュールの一方側に位置し、
第一偏光子と、
第二偏光透過軸を有する第二偏光子と、
前記第一偏光子と前記第二偏光子との間に配置される液晶層であって、前記第二偏光子は、前記液晶層と、前記光源モジュールの該第一逆プリズム片との間に配置され、前記第一偏光透過軸の軸方向と、前記第二偏光透過軸の軸方向との夾角は、実質的に0度から60度までの範囲内にある、液晶層と、
を含む、表示装置。 - 請求項1に記載の表示装置であって、
前記第一偏光透過軸の軸方向と、前記第二偏光透過軸の軸方向との夾角は、実質的に0度であり、前記第二偏光透過軸の軸方向は、前記複数の逆プリズムの前記延伸方向に実質的に垂直である、表示装置。 - 請求項1に記載の表示装置であって、
前記第一偏光透過軸の軸方向と、前記第二偏光透過軸の軸方向との夾角は、実質的に0度であり、前記第二偏光透過軸の軸方向は、前記複数の逆プリズムの前記延伸方向に実質的に平行である、表示装置。 - 請求項1に記載の表示装置であって、
前記光源モジュールは、反射型偏光子をさらに含み、
前記反射型偏光子は、前記第一吸収型偏光子と前記第二背光モジュールとの間に配置され、前記反射型偏光子は、第三偏光透過軸を有し、
前記第三偏光透過軸の軸方向と、前記第一偏光透過軸の軸方向との夾角は、実質的に0度以上且つ90度よりも小さい範囲内にある、表示装置。 - 請求項1に記載の表示装置であって、
前記光源モジュールは、プリズム片及び拡散片をさらに含み、
前記プリズム片及び前記拡散片は、前記第一吸収型偏光子と前記第二背光モジュールとの間に位置し、前記拡散片は、前記プリズム片と前記第二背光モジュールとの間に位置する、表示装置。 - 請求項1に記載の表示装置であって、
前記光源モジュールは、第二逆プリズム片及び拡散片をさらに含み、
前記第二逆プリズム片及び前記拡散片は、前記第一吸収型偏光子と前記第二背光モジュールとの間に位置し、前記第二逆プリズム片は、前記拡散片と前記第二背光モジュールとの間に位置する、表示装置。 - 請求項1に記載の表示装置であって、
前記第四偏光透過軸の軸方向と、前記第一偏光透過軸の軸方向との夾角は、実質的に、0度よりも大きく且つ90度よりも小さい範囲内にある、表示装置。 - 請求項7に記載の表示装置であって、
前記光源モジュールは、反射型偏光子をさらに含み、
前記反射型偏光子は、前記複数の第二吸収型偏光子と前記第二背光モジュールとの間に配置され、前記反射型偏光子は、第三偏光透過軸を有し、
前記第一吸収型偏光子の前記第一偏光透過軸の軸方向は、前記第二偏光子の前記第二偏光透過軸の軸方向に実質的に平行であり、前記反射型偏光子の前記第三偏光透過軸の軸方向は、前記複数の第二吸収型偏光子の前記複数の第四偏光透過軸の軸方向に実質的に平行である、表示装置。 - 請求項1に記載の表示装置であって、
制御モジュール及び電源モジュールをさらに含み、
前記制御モジュールは、前記電源モジュールにカップリングされ、前記電源モジュールは、前記第一背光モジュールの前記第一光源及び前記第二背光モジュールの前記第二光源にカップリングされ、
前記電源モジュールは、前記第一光源に第一駆動電流を、及び、前記第二光源に第二駆動電流を提供するために用いられ、前記制御モジュールは、前記第一駆動電流及び前記第二駆動電流のうちの少なくとも1つを制御するために用いられる、表示装置。 - 光源モジュールであって、
第一背光モジュール、第二背光モジュール、第一逆プリズム片及び第一吸収型偏光子を含み、
前記第一背光モジュールは、相対する第一側及び一第二側を有し、前記第一背光モジュールは、
第一入光面を有する第一導光板;及び
前記第一入光面の近傍に配置される第一光源を含み、
第二背光モジュールは、前記第一背光モジュールの前記第二側に配置され、前記第二背光モジュールは、
第二入光面を有する第二導光板;及び
前記第二入光面の近傍に配置される第二光源を含み、
前記第一逆プリズム片は、前記第一背光モジュールの前記第一側に配置され、前記第一逆プリズム片は、複数の逆プリズムを含み、前記複数の逆プリズムは、延伸方向へ延伸し、
前記第一吸収型偏光子は、前記第一背光モジュールと前記第二背光モジュールとの間に配置され、前記第一吸収型偏光子は、第一偏光透過軸を有し、前記第一偏光透過軸の軸方向は、前記第一吸収型偏光子と前記第二背光モジュールとの間に位置する複数の第二吸収型偏光子の各々の第四偏光透過軸の軸方向とは異なる、光源モジュール。 - 請求項10に記載の光源モジュールであって、
前記光源モジュールは、反射型偏光子をさらに含み、
前記反射型偏光子は、前記第一吸収型偏光子と前記第二背光モジュールとの間に配置され、前記反射型偏光子は、第三偏光透過軸を有し、
前記第三偏光透過軸の軸方向と前記第一偏光透過軸の軸方向との夾角は、実質的に、0度以上且つ90度よりも小さい範囲内にある、光源モジュール。 - 請求項10に記載の光源モジュールであって、
前記光源モジュールは、プリズム片及び拡散片をさらに含み、
前記プリズム片及び前記拡散片は、前記第一吸収型偏光子と前記第二背光モジュールとの間に位置し、前記拡散片は、前記プリズム片と前記第二背光モジュールとの間に位置する、光源モジュール。 - 請求項10に記載の光源モジュールであって、
前記光源モジュールは、第二逆プリズム片及び拡散片をさらに含み、
前記第二逆プリズム片及び前記拡散片は、前記第一吸収型偏光子と前記第二背光モジュールとの間に位置し、前記第二逆プリズム片は、前記拡散片と前記第二背光モジュールとの間に配置される、光源モジュール。 - 請求項10に記載の光源モジュールであって、
前記第四偏光透過軸の軸方向と、前記第一偏光透過軸の軸方向との夾角は、実質的に、0度よりも大きく且つ90度よりも小さい範囲内にある、表示装置。 - 請求項14に記載の光源モジュールであって、
前記光源モジュールは、反射型偏光子をさらに含み、
前記反射型偏光子は、前記複数の第二吸収型偏光子と前記第二背光モジュールとの間に配置され、前記反射型偏光子は、第三偏光透過軸を有し、
前記反射型偏光子の前記第三偏光透過軸の軸方向は、前記複数の第二吸収型偏光子の前記複数の第四偏光透過軸の軸方向と実質的に平行である、光源モジュール。
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