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1. WO2020065713 - LIQUID CRYSTAL DISPLAY DEVICE

Publication Number WO/2020/065713
Publication Date 02.04.2020
International Application No. PCT/JP2018/035380
International Filing Date 25.09.2018
IPC
G02F 1/13357 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13357Illuminating devices
F21S 2/00 2016.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/-F21S10/113
F21V 29/503 2015.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
50Cooling arrangements
502characterised by the adaptation for cooling of specific components
503of light sources
F21V 29/51 2015.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
50Cooling arrangements
51using condensation or evaporation of a fluid, e.g. heat pipes
F21V 29/56 2015.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
50Cooling arrangements
56using liquid coolants
G02F 1/1333 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
CPC
F21S 2/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
2Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
F21V 29/503
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
50Cooling arrangements
502characterised by the adaptation for cooling of specific components
503of light sources
F21V 29/51
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
50Cooling arrangements
51using condensation or evaporation of a fluid, e.g. heat pipes
F21V 29/56
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
29Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
50Cooling arrangements
56using liquid coolants
G02F 1/1333
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements; ; Manufacturing methods
Applicants
  • 堺ディスプレイプロダクト株式会社 SAKAI DISPLAY PRODUCTS CORPORATION [JP]/[JP]
Inventors
  • 中村 真由美 NAKAMURA, Mayumi
  • 根来 和彦 NEGORO, Kazuhiko
  • 岩本 健一 IWAMOTO, Kenichi
  • 外山 彰 TOYAMA, Akira
  • 野田 誠 NODA, Makoto
Agents
  • 奥田 誠司 OKUDA Seiji
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) LIQUID CRYSTAL DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE À CRISTAUX LIQUIDES
(JA) 液晶表示装置
Abstract
(EN)
This liquid crystal display device (100) comprises: a liquid crystal display panel (10); and a backlight device (20) disposed on the rear surface of the liquid crystal display device (10). The backlight device (20) comprises: a chassis (24); a plurality of LED units (22) arranged in the chassis (24) and arranged in at least one direction; and a cooling structure (30A) thermally coupled to the rear surfaces of the plurality of LED units (22). The cooling structure (30A) has a plurality of closed spaces (30S), each of the plurality of closed spaces (30S) includes a refrigerant in which a liquid phase (34) and a gas phase (36) coexist at room temperature, and each of the plurality of closed spaces (30S) is arranged corresponding to at least one LED unit (22) among the plurality of LED units (22) arranged in the at least one direction.
(FR)
Le dispositif d'affichage à cristaux liquides (100) comprend un panneau d'affichage à cristaux liquides (10) et un dispositif de rétroéclairage (20) disposé sur la surface arrière du dispositif d'affichage à cristaux liquides (10). Le dispositif de rétroéclairage (20) comprend : un châssis (24), plusieurs unités de DEL (22) agencées dans le châssis (24) et agencées dans au moins une direction et une structure de refroidissement (30A) couplée thermiquement aux surfaces arrière des unités de DEL (22). La structure de refroidissement (30A) comporte plusieurs espaces fermés (30S). Chacun des espaces fermés (30S) comprend un réfrigérant dans lequel une phase liquide (34) et une phase gazeuse (36) coexistent à température ambiante. Chacun des espaces fermés (30S) est agencé afin de correspondre à au moins une unité de DEL (22) parmi la pluralité d'unités de DEL (22) agencées dans au moins une direction.
(JA)
液晶表示装置(100)は、液晶表示パネル(10)と、液晶表示パネル(10)の背面に配置されるバックライト装置(20)とを備える。バックライト装置(20)は、シャーシ(24)と、シャーシ(24)に配置された、少なくとも一方向に配列された複数のLEDユニット(22)と、複数のLEDユニット(22)の背面に熱的に結合された冷却構造(30A)とを備える。冷却構造(30A)は、複数の密閉空間(30S)を有し、複数の密閉空間(30S)のぞれぞれは、室温において液相(34)と気相(36)とが共存する冷媒を含み、複数の密閉空間(30S)のそれぞれは、少なくとも一方向に配列された複数のLEDユニット(22)の少なくとも1つのLEDユニット(22)に対応して配置されている。
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