US20140104712A1 - Array-type display apparatus - Google Patents

Array-type display apparatus Download PDF

Info

Publication number
US20140104712A1
US20140104712A1 US14/117,156 US201314117156A US2014104712A1 US 20140104712 A1 US20140104712 A1 US 20140104712A1 US 201314117156 A US201314117156 A US 201314117156A US 2014104712 A1 US2014104712 A1 US 2014104712A1
Authority
US
United States
Prior art keywords
display
deflection portion
light
side deflection
point
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.)
Abandoned
Application number
US14/117,156
Other languages
English (en)
Inventor
Hiroshi Sekiguchi
Masahiro Goto
Katsunori Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dai Nippon Printing Co Ltd
Original Assignee
Dai Nippon Printing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2012069921A external-priority patent/JP2013200495A/ja
Priority claimed from JP2012139235A external-priority patent/JP5382168B1/ja
Application filed by Dai Nippon Printing Co Ltd filed Critical Dai Nippon Printing Co Ltd
Assigned to DAI NIPPON PRINTING CO., LTD. reassignment DAI NIPPON PRINTING CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GOTO, MASAHIRO, SEKIGUCHI, HIROSHI, TAKAHASHI, KATSUNORI
Priority to US14/081,082 priority Critical patent/US8807775B2/en
Publication of US20140104712A1 publication Critical patent/US20140104712A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/10—Mirrors with curved faces
    • 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
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0004—Personal or domestic articles
    • F21V33/0052—Audio or video equipment, e.g. televisions, telephones, cameras or computers; Remote control devices therefor
    • 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
    • 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
    • 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
    • G02F1/13336—Combining plural substrates to produce large-area displays, e.g. tiled displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/18—Tiled 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • 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

Definitions

  • the present invention relates to an array-type display apparatus having a display screen formed by an array of display devices.
  • Array-type display apparatuses having an enlarged size of display screen comprised of an array of display apparatuses such as rear projection display devices, plasma display devices, liquid crystal display devices or organic EL (electroluminescence) (organic LED (light-emitting diode)) display devices, are widely used in applications such as digital signage, control monitoring, etc. for which a large display screen of the size of at least tens of inches is required.
  • display apparatuses such as rear projection display devices, plasma display devices, liquid crystal display devices or organic EL (electroluminescence) (organic LED (light-emitting diode)) display devices
  • a rear projection display device for example, needs a frame structure to hold a rear projection screen.
  • a plasma display device a liquid crystal display device or an organic EL display device, it has a display section comprised of a glass panel and needs a frame structure to hold the panel.
  • any such display device has a peripheral non-display area incapable of displaying images.
  • the non-display areas will form a frame-shaped joint portion between the display devices.
  • the joint portion incapable of displaying images, has the drawback of discontinuity of an image, which lowers the image quality.
  • an electrode needs to be provided in a peripheral portion of such a display device, which requires provision of the non-display area at least on the order of a few millimeters even if the narrow holding member is used.
  • the method achieves no significant improvement in image continuity.
  • JP 2007-192977A discloses a method which involves disposing an organic LED on a joint portion.
  • an electrode needs to be provided around the organic LED.
  • the electrode portion is a non-display area.
  • the method disclosed in the reference entails a complicated construction and an increased production cost.
  • JP 2000-122571A discloses a method which devises an electrode and wiring e.g. in an FED (Field Emission Display) in order to reduce the width of a joint portion which is a non-display area.
  • FED Field Emission Display
  • the improvement in image continuity, achieved by the method of the reference is insufficient because of the presence of a non-display area due to a sealing agent, wiring connected to the side, etc.
  • a first array-type display apparatus comprising:
  • display devices each including a display section capable of displaying an image, and a non-display area located around the display section and incapable of displaying an image; and transparent plates each disposed nearer to the viewer than the display section of a corresponding display device and covering the display section and the non-display area of the corresponding display device, wherein the display devices and the transparent plates each have a polygonal shape when viewed in a normal direction of a display surface of the display section, wherein adjacent transparent plates are disposed in contact with each other, wherein each transparent plate has: a light exit-side deflection portion for inwardly bending a traveling direction of at least part of light that has exited the display section and passed through the transparent plate, said light exit-side deflection portion being provided at least in an area of a peripheral part of a viewer-side surface, the area facing the non-display area when viewed in the normal direction of the display surface of the display section; and corner deflection portions, provided at the corners of the viewer-side surface, for inwardly bending a
  • the corner deflection portions may be each inclined with respect to the light exit-side deflection portion.
  • the corner deflection portions each may have a curved surface, curved surfaces arranged in the inner-outer direction, inclined surfaces arranged in the inner-outer direction, or at least one curved surface and at least one inclined surface arranged in the inner-outer direction,
  • an angle formed between a tangent plane of a curved surface at a point on the deflection portion and a plane parallel to the display surface of the display section or an angle formed between an inclined surface at a point on the deflection portion and a plane parallel to the display surface of the display section may increase as the point moves outward in the inner-outer direction, and wherein when viewed in the normal direction of the display surface of the display section, an innermost point on each corner deflection portion may lie on an outer side of an innermost point on the light exit-side deflection portion.
  • the corner deflection portions may be formed in areas facing the corners of the non-display area.
  • W 1 represents the width of the light exit-side deflection portion
  • W represents the width of the non-display area, as viewed in the normal direction of the display surface of the display section.
  • each transparent plate may further have a light entrance-side deflection portion for outwardly bending a traveling direction of at least part of light that has exited the display section, said light entrance-side deflection portion being provided at least in an area of a peripheral part of a display device-side surface, the area facing the display section when viewed in the normal direction of the display surface of the display section.
  • a second array-type display apparatus comprising:
  • each transparent plate has: a light entrance-side deflection portion for outwardly bending a traveling direction of at least part of light that has exited the display section, said light entrance-side deflection portion being provided at least in an area of a peripheral part of a display device-side surface, the area facing the display section when viewed in the normal direction of a display surface of the display section; and a light exit-side deflection portion for inwardly bending a traveling direction of at least part of light that has exited the display section and passed through the transparent plate, said light exit-side deflection portion being provided at least in an area of a peripheral part of a viewer-
  • the light exit-side deflection portion may have a curved surface, curved surfaces arranged in an inner-outer direction, inclined surfaces arranged in the inner-outer direction, or at least one curved surface and at least one inclined surface arranged in the inner-outer direction,
  • the outer side of the light exit-side deflection portion may be located nearer to the display device than the inner side thereof in the thickness direction of the transparent plate, and an angle formed between a tangent plane of a curved surface at a point on the light exit-side deflection portion and a plane parallel to the display surface of the display section or an angle formed between an inclined surface at a point on the light exit-side deflection portion and a plane parallel to the display surface of the display section may increase as the point moves outward in the inner-outer direction, and wherein at least part of light that exits the light exit-side deflection portion may travel in a direction perpendicular to the display surface of the display section.
  • the light entrance-side deflection portion may have a curved surface, curved surfaces arranged in an inner-outer direction, inclined surfaces arranged in the inner-outer direction, or at least one curved surface and at least one inclined surface arranged in the inner-outer direction, and
  • the outer side of the light entrance-side deflection portion may be located nearer to the display device than the inner side thereof in the thickness direction of the transparent plate, and an angle formed between a tangent plane of a curved surface at a point on the light entrance-side deflection portion and a plane parallel to the display surface of the display section or an angle formed between an inclined surface at a point on the light entrance-side deflection portion and a plane parallel to the display surface of the display section may increase as the point moves outward in the inner-outer direction.
  • an image formed on the display surface by light that exits that area of the display section which faces the light entrance-side deflection portion when viewed in the normal direction of the display surface of the display section may be reduced to W 2 /W 1 (W 1 is the width of the light exit-side deflection portion and W 2 is the width of the light entrance-side deflection portion) of an image formed on the display surface by light that exits the other area of the display section.
  • the luminance of an image displayed on that area of the display section which faces the light entrance-side deflection portion may be W 1 /W 2 times the luminance of an image displayed on the other area of the display section.
  • At least part of light that has entered the light entrance-side deflection portion in the normal direction of the display surface of the display section may pass through the transparent plate and may exit it through the light exit-side deflection portion in the normal direction of the display surface of the display section.
  • light that has entered the light entrance-side deflection portion at an outermost point in the normal direction of the display surface of the display section may pass through the transparent plate and may exit it at a point lying nearest to the display device, on the light exit-side deflection portion in the normal direction of the display surface of the display section.
  • the following relation may be satisfied in a cross-section perpendicular to a side surface of the transparent plate and to the display surface of the display section:
  • H represents the distance between a point T 1 and a point T 3
  • W represents the distance between a point T 2 and the point T 3
  • the point T 1 being a point lying nearest to the display device in the thickness direction of the transparent plate, on the light exit-side deflection portion
  • the point 12 being a outermost point on the light entrance-side deflection portion
  • the point T 3 being the point of intersection between the plane passing through the point T 2 and parallel to the display surface of the display section, and the straight line passing through the point T 1 and perpendicular to the display surface of the display section
  • ⁇ (0° ⁇ 90°) represents the angle of the traveling direction of light in the transparent plate with respect to a plane parallel to the display surface, when the light enters the transparent plate at the point T 2 , passes through the transparent plate and exits it at the point T 1 in the normal direction of the display surface of the display section.
  • the array-type display apparatus can significantly reduce the visibility of a non-display area between display devices and can display good images with enhanced image continuity.
  • FIG. 1 is a perspective view illustrating an array-type display apparatus according to a first embodiment of the present invention
  • FIG. 2 shows diagrams illustrating the array-type display apparatus shown in FIG. 1 ;
  • FIG. 3 is a diagram illustrating a light exit-side deflection portion shown in FIG. 1 ;
  • FIG. 4 shows diagrams illustrating the action of the light exit-side deflection portion shown in FIG. 1 ;
  • FIG. 5 shows diagrams illustrating a corner deflection portion shown in FIG. 1 ;
  • FIG. 6 shows diagrams illustrating the corner deflection portion shown in FIG. 1 ;
  • FIG. 7 shows diagrams illustrating a corner portion of a transparent plate having no corner deflection portion
  • FIG. 8 shows diagrams illustrating a corner portion of a transparent plate having corner deflection portions, with the innermost point T 5 on each deflection portion lying in the same position as an innermost point on a light exit-side deflection portion;
  • FIG. 9 is a diagram illustrating an array-type display apparatus which is a modification of the array-type display apparatus shown in FIG. 1 ;
  • FIG. 10 shows diagrams illustrating variations of a transparent plate shown in FIG. 1 ;
  • FIG. 11 shows diagrams illustrating variations of the array-type display apparatus shown in FIG. 1 ;
  • FIG. 12 is a perspective view illustrating an array-type display apparatus according to a second embodiment of the present invention.
  • FIG. 13 shows diagrams illustrating display devices and transparent plates, provided in the array-type display apparatus shown in FIG. 12 ;
  • FIG. 14 is a cross-sectional view of the array-type display apparatus shown in FIG. 12 ;
  • FIG. 15 is a cross-sectional view corresponding to FIG. 14 , illustrating the light exit-side deflection portion and the light entrance-side deflection portion of a transparent plate in detail;
  • FIG. 16 is a cross-sectional view corresponding to FIG. 14 , illustrating the dimensions of a peripheral end portion of the transparent plate
  • FIG. 17 is a cross-sectional view corresponding to FIG. 14 , illustrating the magnification ratio of an image displayed on the light exit-side deflection portion;
  • FIG. 18 is a diagram illustrating a method for designing the light exit-side deflection portion and the light entrance-side deflection portion of a transparent plate
  • FIG. 19 is a diagram illustrating an array-type display apparatus which is a modification of the array-type display apparatus shown in FIG. 12 ;
  • FIG. 20 shows diagrams illustrating variations of a transparent plate shown in FIG. 12 ;
  • FIG. 21 shows diagrams illustrating variations of the array-type display apparatus shown in FIG. 12 ;
  • FIG. 22 shows diagrams illustrating examples of the shapes of the light exit-side deflection portion and the light entrance-side deflection portion of the transparent plate shown in FIG. 12 ;
  • FIG. 23 is a perspective view illustrating a conventional array-type display apparatus.
  • FIG. 24 shows diagrams illustrating examples of the construction of a display device for use in the conventional array-type display apparatus.
  • FIG. 1 are schematic diagrams in which dimensions and shapes may be exaggerated for easier understanding.
  • plate used herein in the common usage, with “plate” the thickest and “film” the thinnest. There is no significant technical difference between the terms “plate”, “sheet” and “film”, and therefore these terms can be used interchangeably.
  • FIG. 23 is a perspective view illustrating a conventional array-type display apparatus 990 .
  • the conventional array-type display apparatus 990 shown in FIG. 23 includes four display devices 990 A, 990 B, 990 C, 990 D, each having a rectangular display screen of the same size.
  • the display devices 990 A, 990 B, 990 C, 990 D have display sections 991 A, 991 B, 991 C, 991 D, respectively, which are capable of displaying their respective images.
  • the four display devices 990 A, 990 B, 990 C, 990 D are arranged in a 2 ⁇ 2 matrix such that the display sections 991 A, 991 B, 991 C, 991 D lie in a plane.
  • the display devices 990 A to 990 D may be comprised of, for example, rear projection display devices, plasma display devices, liquid crystal display devices or organic EL display devices (organic LED display devices).
  • the number of the display devices, constituting the array-type display apparatus 990 is not limited to 4 as illustrated in FIG. 23 , but may be 2, 6, 8 or other number.
  • FIG. 24 shows diagrams illustrating examples of the construction of a display device 990 A ( 990 A 1 to 990 A 3 ) for use in the conventional array-type display apparatus 990 .
  • FIG. 24 shows only the display device 990 A ( 990 A 1 to 990 A 3 ) as a representative of the four display devices, and shows part of the display device 990 A ( 990 A 1 to 990 A 3 ) in a cross-section parallel to the normal direction of the display surface (display section 991 A).
  • FIG. 24( a ) illustrates a case where the constituent display device is a rear projection display device
  • FIG. 24( b ) illustrates a case where the constituent display device is a plasma display device, a liquid crystal display device, an organic EL display device (an organic LED display device), or the like
  • FIG. 24( c ) illustrates a case where the constituent display device is a plasma display device, a liquid crystal display device, an organic EL display device (an organic LED display device), or the like, but has a different construction from the display device of FIG. 24( b ).
  • the display device 990 A 1 which is a rear projection display device, includes a frame structure 992 for holding a rear projection screen 991 .
  • a peripheral portion of the viewer-side surface of the rear projection screen 991 is covered with the viewer-side frame member 992 a of the frame structure 992 , and therefore the peripheral area is a non-display area (joint portion) incapable of displaying images.
  • the display device 990 A 2 which is a plasma display device, a liquid crystal display device, an organic EL display device, or the like, includes a frame structure 994 for holding a display panel 993 .
  • a peripheral portion of the viewer-side surface of the display panel 993 is covered with the viewer-side frame member 994 a of the frame structure 994 , and therefore the peripheral area is a non-display area (joint portion) incapable of displaying images.
  • the display device 990 A 3 which is a plasma display device, a liquid crystal display device, an organic EL display device, or the like, includes a holding member 996 for holding a display panel 995 .
  • the holding member 996 is attached to the end surface of the display panel 995 .
  • the display panel 995 needs the provision of a peripheral area 997 where an electrode section, a wiring section, etc. are provided.
  • the peripheral area 997 is a non-display area.
  • the non-display areas 992 A to 992 D incapable of displaying images, exist around the display sections 991 A to 991 D of the display devices 990 A to 990 D.
  • the non-display areas 992 A to 992 D between the display devices 990 A to 990 D are perceived as dark joint lines. This significantly reduces the continuity and the visibility of the image, thus lowering the quality of the image.
  • the present invention is intended to solve the problem and provide an array-type display apparatus which can display a continuous image with good visibility.
  • FIG. 1 is a perspective view of an array-type display apparatus 100 according to a first embodiment of the present invention.
  • FIGS. 2 ( a ) through 2 ( d ) are diagrams illustrating display devices 10 and transparent plates 20 , provided in the array-type display apparatus shown in FIG. 1 .
  • FIG. 2( a ) shows the array-type display apparatus 100 in a cross-section taken along the line A-A of FIG. 1 and parallel to the thickness direction of the array-type display apparatus 100 .
  • FIG. 2( b ) is a plan view of a display device 10 A as viewed from the viewer.
  • FIG. 2( c ) is a plan view of a transparent plate 20 A as viewed from the viewer, while FIG.
  • FIGS. 2( b ) through 2 ( d ) show only the display device 10 A or the transparent plate 20 A as a representative.
  • the array-type display apparatus 100 of this embodiment includes a display device section 10 and a transparent plate section 20 .
  • the transparent plate section 20 is provided on the viewer side, i.e. on the light exit side, of the display device section 10 and, in this embodiment, is bonded to the display device section 10 via a bonding layer 30 (see FIG. 2( a ) and the below-described FIG. 3) provided between the transparent plate section 20 and the display device section 10 .
  • the bonding layer 30 which bonds the transparent plate section 20 and the display device section 10 together, preferably has a high light transmittance and has the same refractive index as the transparent plate section 20 (with no substantial difference between their refractive indices), and is optically equivalent to the transparent plate section 20 .
  • the display device section 10 is comprised of an array of display devices to display images.
  • the display devices 10 A to 10 D are arranged adjacent to each other such that the display surfaces of display sections 11 A to 11 D, which are capable of displaying images, lie in a plane.
  • the display devices 10 A to 10 D are arranged in a 2 ⁇ 2 matrix (two in the vertical direction and two in the lateral direction when the array-type display apparatus 100 is in use).
  • the number of the display devices, constituting the array-type display apparatus 100 is not limited to 4, but may be 2, 6, 8 or other number depending on the screen size, etc. Further, the arrangement direction of the display devices may be set arbitrarily.
  • the display device 10 A when viewed in the normal direction nd (see FIG. 3) of the display surface 11 A 1 of the display section 11 A, the display device 10 A includes the display section 11 A which is capable of displaying images, and a non-display area 12 A which is located around the display section 11 A and which does not display images.
  • the non-display area 12 A may be composed of, for example, a frame member or an electrode section.
  • the display section 11 A of this embodiment when viewed in the normal direction nd of the display surface 11 A 1 of the display section 11 A, has a generally-rectangular shape, and the non-display area 12 A is located around and adjacent to the display section 11 A.
  • the other display devices 10 B to 10 D have the same construction.
  • the display devices 10 A to 10 D may be plasma display devices, liquid crystal display devices, organic EL display devices (organic LED display devices), or the like, or may be rear projection display devices.
  • the transparent plate section 20 is comprised of a transparent generally-flat plate-like member disposed on the viewer side of the display screen of the display device section 10 .
  • the transparent plate section 20 of this embodiment is comprised of an array of transparent plates 20 A to 20 D arranged adjacent to each other in a 2 ⁇ 2 matrix (two in the vertical direction and two in the lateral direction when the array-type display apparatus 100 is in use) and has a generally-flat plate-like shape.
  • the transparent plates 20 A, 20 B, 20 C, 20 D are disposed in positions corresponding to the display devices 10 A, 10 B, 10 C, 10 D, respectively.
  • the transparent plates 20 A to 20 D are disposed nearer to the viewer than the display sections 11 A to 11 D of the corresponding display devices 10 A to 10 D, and cover the display sections 11 A to 11 D and the non-display areas 12 A to 12 D of the display devices 10 A to 10 D.
  • the sizes and shapes of the transparent plates 20 A to 20 D coincide with those of the corresponding display devices 10 A to 10 D. Further, as shown in FIG.
  • the transparent plates 20 A to 20 D are each a generally-flat plate-like member and, when viewed in the normal direction of the plate plane (the front direction of the screen of the array-type display apparatus 100 ), they each have a generally-rectangular shape.
  • plate plane of a transparent plate herein refers to a plane which coincides with the planar direction of the transparent plate when taking an overall view of the plate.
  • the plate plane is parallel to the display surfaces of the display devices 10 A to 10 D and to the screen of the array-type display apparatus 100 .
  • the transparent plates 20 A to 20 D are preferably formed of a transparent material having a high light transmittance.
  • the material for the transparent plates 20 A to 20 D include a polycarbonate (PC) resin, an acrylic resin, a styrene resin, an olefin resin, glass, ceramics, etc.
  • the transparent plates 20 A to 20 D can be produced by subjecting the material to e.g. injection molding or casting.
  • the transparent plate 20 A has a viewer-side (light exit-side) surface consisting of a planar portion 21 A, a light exit-side deflection portion 22 A located around the planar portion 21 A, and corner deflection portions 23 A provided at the rectangular corners.
  • the transparent plate 20 A has a display device section 10 -side surface consisting of a light entrance portion 24 A parallel to the planar portion 21 A, and a bonding portion 25 A provided in an area around the light entrance portion 24 A and corresponding to the non-display area 12 A.
  • the other transparent plates 20 B to 20 D have the same construction.
  • FIG. 3 is a diagram illustrating the light exit-side deflection portion 22 A of this embodiment.
  • FIG. 3 is an enlarged cross-sectional view of a portion of the array-type display apparatus 100 in a cross-section taken along the line A-A of FIG. 1 and parallel to the thickness direction of the array-type display apparatus 100 .
  • FIG. 3 shows only the display device 10 A and the transparent plate 20 A and, in addition, depicts the display device 10 A in a greatly simplified manner.
  • the cross-section of FIG. 3 is perpendicular to the side surface 26 A whose longitudinal direction is parallel to the longitudinal direction of the light exit-side deflection portion 22 A shown in FIG.
  • the side surface 26 A is parallel to the thickness direction of the transparent plate 20 A and the display device 10 A, and perpendicular to the planer portion 21 A and to the light entrance portion 24 A.
  • FIG. 3 shows the light exit-side deflection portion 22 A in the cross-section parallel to the thickness direction of the display device 10 A and the transparent plate 20 A and perpendicular to one side (side surface) of the display device 10 A and one side (side surface) of the transparent plate 20 A; the light exit-side deflection portion 22 A has the same cross-sectional shape in the corresponding cross-sections perpendicular to the other sides. While the following description solely illustrates the display device 10 A and the transparent plate 20 A for easier understanding, the description holds true for the other display devices 10 B to 10 D and the other transparent plates 20 B to 20 D unless otherwise stated.
  • the planar portion 21 A on the light exit side of the transparent plate 20 A is parallel to the display surface of the display section 11 A.
  • the planar portion 21 A has a shape similar to the shape of the display surface of the display section 11 A and, in this embodiment, has a rectangular shape as shown in FIG. 2( c ).
  • the light exit-side deflection portion 22 A is provided around and adjacent to the planar portion 21 A (see FIG. 1 and FIGS. 2( a ) and 2 ( c )).
  • the light exit-side deflection portion 22 A of this embodiment is a curved surface convexed toward the viewer, and the thickness of the transparent plate 20 A at a point on the light exit-side deflection portion 22 A shown in FIG. 3 decreases as the point moves outward from a point T 4 , which lies at the boundary between the light exit-side deflection portion 22 A and the planar portion 21 A, toward the periphery of the transparent plate 20 A.
  • the light exit-side deflection portion 22 A is nearest at the outermost point T 1 to the display device 10 A in the thickness direction of the transparent plate 20 A.
  • angle ⁇ 1 formed between the tangent plane at a point on the light exit-side deflection portion 22 A and a plane parallel to the display surface of the display section 11 A (plane parallel to the planar portion 21 A) gradually increases as the point moves from an inner position toward an outer or peripheral position on the light exit-side deflection portion 22 A.
  • inner position refers to a position nearer to the center of the transparent plate in a planar view.
  • the light entrance portion 24 A on the light entrance side of the transparent plate 20 A is parallel to the viewer-side surface, i.e. the light exit-side surface, of the display section 11 A, has a rectangular shape as viewed in the front direction, and has a size and a shape corresponding to those of the display surface 11 A 1 of the display section 11 A.
  • the bonding portion 25 A is provided in an area which is located around and adjacent to the light entrance portion 24 A and which, when viewed in the front direction of the array-type display apparatus 100 , corresponds to the non-display area 12 A.
  • the bonding portion 25 A when viewed in the front direction of the array-type display apparatus 100 , faces the non-display area 12 A.
  • the display device section 10 -side surface of the bonding portion 25 A is parallel to the viewer-side surface of the non-display area 12 A.
  • the bonding portion 25 A and the non-display area 12 A are bonded together via the bonding layer 30 , whereby the transparent plate 20 A and the display device 10 A are bonded together.
  • an air layer 27 having a predetermined thickness is formed between the light entrance portion 24 A and the display section 11 A.
  • W 1 represents the width of the light exit-side deflection portion 22 A, i.e. the distance between the outer end and the inner end of the light exit-side deflection portion 22 A in a direction parallel to the display surface 11 A 1 of the display section 11 A; and W represents the width of the non-display area 12 A, i.e. the distance between the outer end and the inner end of the non-display area 12 A in a direction parallel to the display surface 11 A 1 of the display section 11 A (W 1 >W).
  • T 2 represents the outermost point on the light entrance portion 24 A
  • T 3 represents the point of intersection between the plane, passing through the point 12 and parallel to the display surface 11 A 1 of the display section 11 A, and the straight line passing through the point T 1 and perpendicular to the display surface 11 A 1 of the display section 11 A.
  • the point T 3 coincides with the intersection between the surface of the bonding portion 25 A and the straight line passing through the point T 1 and parallel to the thickness direction of the transparent plate 20 A.
  • H represents the distance between the point T 1 and the point T 3 in the thickness direction of the transparent plate 20 A
  • D represents the thickness of the transparent plate 20 A (the distance between the planar portion 21 A and the light entrance portion 24 A in the thickness direction).
  • light L 25 exiting the display section 11 A, for example at the center, in the normal direction nd (front direction) of the display surface 11 A 1 , enters the light entrance portion 24 A and passes through the transparent plate 20 A, and exits the planar portion 21 A in the normal direction nd.
  • lights L 21 to L 23 which have exited a peripheral end area of the display section 11 A in a direction inclined outwardly, i.e. toward the non-display area 12 A, with respect to the normal direction nd, enter the light entrance portion 24 A and pass through the transparent plate 20 A, and reach the light exit-side deflection portion 22 A.
  • the lights L 21 to L 23 are deflected at the interface between the light exit-side deflection portion 22 A and air, and bent inwardly (toward the display section 11 A). More specifically, the lights L 21 to L 23 are bent inwardly such that the angle of the traveling direction of each light with respect to the normal direction nd of the display surface 11 A 1 of the display section 11 A becomes smaller.
  • the bent lights L 21 to L 23 exit the light exit-side deflection portion 22 A in the normal direction nd of the display surface 11 A 1 of the display section 11 A.
  • the angle ⁇ 1 at a point on the light exit-side deflection portion 22 A increases as the point moves outward. Therefore, the inward deflection of light, exiting the light exit-side deflection portion 22 A in the normal direction nd of the display surface 11 A 1 , is larger as the light exits at an outer point (nearer to the point T 1 ) on the light exit-side deflection portion 22 A.
  • the display device 10 A when the display device 10 A is viewed in the normal direction nd of the viewer-side display surface 11 A 1 , the lights L 21 to L 23 , which have exited the peripheral end area of the display section 11 A and entered the light exit-side deflection portion 22 A and have been bent inwardly such that the angle of the traveling direction of each light with respect to the normal direction nd of the display surface 11 A 1 becomes smaller, exit that area of the transparent plate 20 A which faces the non-display area 12 A. Therefore, the viewer perceives an image being displayed over the entire area of the transparent plate 20 A, without perceiving the non-display area 12 A.
  • an image displayed on the light exit-side deflection portion 22 A, especially on its peripheral part, is a magnified image from light that has exited a peripheral part, near the non-display area 12 A, of the display section 11 A.
  • the transparent plate 20 A thus makes it possible to significantly reduce the visibility of the non-display area and enhance image continuity.
  • an image as viewed through the transparent plate 20 A is perceived as an image which is continuous over the entire area of the viewer-side surface of the transparent plate 20 A and as a good image without a joint portion deriving from the non-display area 12 A.
  • FIG. 4 shows diagrams illustrating the action of the light exit-side deflection portion 22 A of this embodiment.
  • FIG. 4( a ) shows the light exit-side deflection portion 22 A of this embodiment
  • FIG. 4( b ) shows a light exit-side deflection portion 122 A having a width W 1 equal to the width W of the non-display area.
  • FIG. 4 shows the same cross-section as the cross-section shown in the above-described FIG. 3 .
  • Light L 34 also exiting the point E 3 but in a direction inclined outwardly with respect to the normal direction nd, enters the light exit-side deflection portion 122 A, where the light is deflected. The light L 34 then exits the light exit-side deflection portion 122 A in the normal direction nd of the display surface 11 A 1 .
  • the lights L 33 and L 34 exit the same point E 3 , and therefore are to display the same image.
  • the same two images are displayed in the vicinity of the boundary between the light exit-side deflection portion 122 A and the planar portion 21 A and are viewed as a double image.
  • the angle ⁇ 1 formed between the tangent plane at a point on the light exit-side deflection portion 22 A and a plane parallel to the planar portion 21 A can be made very small in the vicinity of point 14 which lies at the boundary between the light exit-side deflection portion 22 A and the planar portion 21 A and, in addition, the angle ⁇ 1 continuously increases as the point on the light exit-side deflection portion 22 A moves outward.
  • the light exit-side deflection portion 22 A and the planar portion 21 A are connected smoothly without an inflection point.
  • the transparent plate 20 A of this embodiment can therefore significantly reduce a double image which, as described above with reference to FIG. 4( b ), can occur in the vicinity of the boundary between the light exit-side deflection portion 22 A and the planar portion 21 A.
  • the width W 1 and the width W preferably satisfy the following relation: W 1 >W and 2 ⁇ W ⁇ W 1 .
  • W 3 W 1 ⁇ W
  • the width W 3 is narrow.
  • An image on the area is magnified when displayed on the light exit-side deflection portion 22 A.
  • the width W 3 is small, an image at a high magnification ratio is displayed on the light exit-side deflection portion 22 A, resulting in reduced image continuity with an adjacent image. It is therefore preferred that the relation “2 ⁇ W ⁇ W 1 ” be satisfied.
  • width W 1 and the width W preferably satisfy the following relation: W 1 ⁇ 4 ⁇ W
  • the transparent plate 20 A will have the following disadvantages: an increase in the thickness D of the transparent plate 20 A; an increase in the weight of the transparent plate 20 A; and an increase in the load on the holding of the transparent plate section 20 .
  • the transparent plate 20 A is designed such that the width W 1 is made large without increasing the thickness D of the transparent plate 20 A, the angle ⁇ 1 formed between the tangent plane at a point on the light exit-side deflection portion 22 A and a plane parallel to the display surface of the display section 11 A will be very small as approximately zero in the vicinity of point T 4 which lies at the boundary between the light exit-side deflection portion 22 A and the planar portion 21 A.
  • the light exit-side deflection portion 22 A in an area in the vicinity of the point T 4 , will be substantially parallel to the planar portion 21 A. This may result in a lowering of the above-described optical effect achieved by the use of a large width W 1 .
  • the use of such a transparent plate 20 A involves an increased machining workload in the production of a mold or the like for producing the transparent plate 20 A.
  • the light exit-side deflection portion 22 A is preferably located at an appropriate distance from the non-display area 12 A in the thickness direction of the transparent plate 20 A (the normal direction nd of the display surface 11 A 1 of the display section 11 A).
  • H represents the distance between the point T 1 and the point T 3 in the thickness direction of the transparent plate 20 A (in this embodiment is equal to the distance from the point T 1 to the bonding surface of the bonding portion 25 A in the thickness direction)
  • W represents the distance between the point T 2 and the point T 3 (in this embodiment is equal to the width of the non-display area 12 A).
  • ⁇ represents the angle of the traveling direction of light L 21 , which enters the transparent plate 20 A at the point T 2 , passes through the transparent plate 20 A and exits at the point T 1 in the normal direction nd of the display surface 11 A 1 of the display section 11 A, in the transparent plate 20 A with respect to the normal direction nd of the display surface 11 A 1 of the display section 11 A.
  • an exit point on the display section 11 A of light which is to enter the light exit-side deflection portion 22 A of the transparent plate 20 A and exit it in the normal direction nd of the display surface 11 A 1 , moves inward (toward the center of the display screen) from an outer or peripheral position (nearer to the non-display area 12 A) on the display section 11 A.
  • the distance H while satisfying the formula (1), is preferably not too large.
  • the distance H preferably satisfies the following formula (2):
  • an image displayed by light that exits the light exit-side deflection portion 22 A in a direction perpendicular to the display surface differs from an image displayed on that area of the display section 11 A which lies adjacent to the non-display area 12 A, as described above. This reduces image continuity.
  • the distance H preferably satisfies the following two formulae:
  • the array-type display apparatus 100 of this embodiment which satisfies such conditions, can display an image which is continuous over the entire area of the viewer-side surfaces of the transparent plates 20 A to 20 D, while preventing display of a joint portion due to the non-display areas 12 A to 12 D between the display devices 10 A to 10 D.
  • FIGS. 5 and 6 show diagrams illustrating the corner deflection portion 23 A of this embodiment.
  • FIG. 5( a ) is a perspective view of the corner deflection portion 23 A
  • FIG. 5( b ) shows the corner of the transparent plate 20 A as viewed in the normal direction nd of the display surface 11 A 1 of the display section 11 A
  • FIG. 6( a ) is a cross-sectional view of the corner deflection portion 23 A in a cross-section parallel to the two-dot chain line B-B of FIG. 5( b ) and parallel to the thickness direction of the transparent plate 20 A
  • FIG. 6( b ) shows the corner of the transparent plate 20 A as viewed in the normal direction nd of the display surface 11 A 1 of the display section 11 A.
  • the corner deflection portions 23 A are provided at the corners of the light exit-side surface of the transparent plate 20 A.
  • the corner deflection portions 23 A are curved surfaces convexed toward the viewer and, as shown in FIG. 6 , the angle ⁇ 2 formed between the tangent at a point on the corner deflection portion 23 A and the display surface 11 A 1 of the display section 11 A gradually increases as the point moves toward the point T 6 .
  • the innermost point T 5 on the corner deflection portion 23 A lies on the outer side of the innermost point T 4 on the light exit-side deflection portion 22 A and lies nearer than the point T 4 to the display device 10 A in the thickness direction of the transparent plate 20 A.
  • the outermost point T 6 on the corner deflection portion 23 A lies nearer to the display device 10 A than the outermost point T 1 on the light exit-side deflection portion 22 A.
  • the corner deflection portion 23 A when viewed in the normal direction nd of the display surface 11 A 1 , the corner deflection portion 23 A is formed in an area corresponding to the corner area 12 A-C of the non-display area 12 A. In particular, the corner deflection portion 23 A is formed in an area facing the corner area of the non-display area 12 A.
  • the corner deflection portion 23 A and the light exit-side deflection portion 22 A are connected smoothly at the boundary portion, though the corner deflection portion 23 A may be inclined with respect to the light exit-side deflection portion 22 A.
  • the angle ⁇ 2 at the point T 6 on the corner deflection portion 23 A is larger than the angle ⁇ 1 at the point T 1 on the light exit-side deflection portion 22 A.
  • corner deflection portion 23 A having such a shape, formed in the transparent plate 20 A
  • lights L 41 , L 42 which have exited an area of the display section 11 A in the vicinity of the corner, enter the light entrance portion 24 , pass through the transparent plate 20 A and reach the corner deflection portion 23 A.
  • the lights L 41 , L 42 then exit the corner deflection portion 23 A, at least part of the lights is deflected and bent inwardly such that the angle of the traveling direction with respect to the normal direction nd of the display surface 11 A 1 of the display section 11 A becomes smaller.
  • the provision of the corner deflection portion 23 A can therefore enhance image continuity at the corner area of the transparent plate 20 A and, in addition, can prevent display of a point-like joint portion, a double image, etc. which are likely to be displayed on the corner area.
  • FIG. 7 shows diagrams illustrating a corner portion of a transparent plate 220 A having no corner deflection portion
  • FIG. 8 shows diagrams illustrating a corner portion of a transparent plate 320 A having corner deflection portions 323 A, in which the innermost point T 5 on each deflection portion lies in the same position as the innermost point T 4 on the light exit-side deflection portion 22 A.
  • FIGS. 7( a ) and 8 ( a ) are perspective views of the corner portions of the transparent plates 220 A, 320 A
  • FIGS. 7( b ) and 8 ( b ) are diagrams showing the corner portions of the transparent plates 220 A, 320 A as viewed in the normal direction nd of the display surface 11 A 1 .
  • the light that exits the area F 42 or F 52 in the normal direction nd of the display surface 11 A 1 displays the same image as the light that exits the area F 43 or F 53 in the normal direction nd of the display surface 11 A 1 .
  • a double image is displayed on the areas F 42 , F 43 or on the areas F 52 , F 53 .
  • the light that has exited the area F 11 partly exits an area F 13 of the light exit-side deflection portion 22 A in the normal direction nd of the display surface 11 A 1 .
  • the areas F 12 and F 13 are smaller than the above-described areas F 42 , F 43 , F 52 , F 53 and are concentrated in the corner portion, the light is unlikely to be perceived as a double image.
  • corner deflection portions 23 A of this embodiment can therefore enhance image continuity, enabling an image to be displayed over the entire area, including the corners, of the transparent plate and, in addition, can significantly reduce the visibility of a double image.
  • the array-type display apparatus 100 of this embodiment can significantly reduce the visibility of a joint portion, can display an image with high continuity, and can display a good image comparable to an image as displayed on a single display device.
  • Display devices 10 A to 10 D transmissive liquid crystal display devices
  • Screen size of the display sections 11 A to 11 D diagonal screen size 50 inches (1100 mm ⁇ 620 mm)
  • Width W of the non-display areas 12 A to 12 D 4 mm
  • Transparent plates 20 A to 20 D made of acrylic resin
  • Thickness D 15 mm
  • Corner deflection portions 23 A to 23 D the width (the distance between point T 5 and point T 6 ) 5.6 mm, the radius of curvature 15 mm
  • the array-type display apparatus of this embodiment can have the advantages of: no display of a dark line or the like; high image continuity; and the capability of displaying good images without a display defect, such as a double image.
  • FIG. 9 is a diagram illustrating an array-type display apparatus 400 which is a modification of the array-type display apparatus shown in FIG. 1 .
  • FIG. 9 shows the array-type display apparatus 400 in a cross-section corresponding to the cross-section shown in FIG. 3 .
  • the array-type display apparatus 400 has the same shape as the array-type display apparatus 100 of the first embodiment except that the light exit-side deflection portion 42 A of the transparent plate 20 A is polygonally curved and consists of a number of inclined surfaces. Therefore, the same reference numerals or the same last symbols are used for those portions which perform the same function as the above-described portions of the first embodiment, and a duplicate description thereof will be omitted.
  • the light exit-side deflection portion 42 A formed in the transparent plate 20 A is polygonally curved and consists of a number of inclined surfaces (flat surfaces) arranged in the inner-outer direction. Namely, a number of inclined surfaces are arranged from an inner side to an outer side.
  • the angle ⁇ 3 formed between each inclined surface of the light exit-side deflection portion 42 A and a plane parallel to the display surface 11 A 1 of the display section 11 A gradually increases with distance from the innermost position on the light exit-side deflection portion 42 A in the width direction.
  • the number of inclined surfaces arranged in the inner-outer direction (width direction) is preferably as large as possible.
  • the shape of the light exit-side deflection portion 42 A, defined by the inclined surfaces, can approximate a curved surface convexed toward the viewer.
  • the transparent plate 20 A (transparent plate section 20 ) having the light exit-side deflection portion 22 A of the above-described first embodiment can also display good images with high image continuity.
  • the light exit-side deflection portion 42 A of the transparent plate 20 A consists of a number of inclined surfaces
  • the present invention is not limited to such a light exit-side deflection portion.
  • a light exit-side deflection portion consisting of a curved surface, curved surfaces arranged in the inner-outer direction, inclined surfaces arranged in the inner-outer direction, or at least one curved surface and at least one inclined surface, arranged in the inner-outer direction.
  • the above description of the light exit-side deflection portion 42 A holds true for the corner deflection portion 23 .
  • a corner deflection portion consisting of a curved surface, curved surfaces arranged in the inner-outer direction, inclined surface, inclined surfaces arranged in the inner-outer direction, or at least one curved surface and at least one inclined surface, arranged in the inner-outer direction.
  • the shape of the corner deflection portion, defined by the inclined surfaces can approximate a curved surface convexed toward the viewer. Therefore, as with the transparent plate 20 A (transparent plate section 20 ) provided with the corner deflection portions 23 A of the above-described first embodiment, the transparent plate 20 A provided with such corner deflection portions can also display good images with high image continuity.
  • FIG. 10 shows diagrams illustrating variations of the transparent plates 20 A to 20 D.
  • FIG. 11 shows diagrams illustrating variations of the array-type display apparatuses 100 , 400 .
  • FIGS. 10 and 11 and the following description solely illustrate the transparent plate 20 A and the display device 10 A for easier understanding, the illustration holds true for the other transparent plates 20 B to 20 D and the other display devices 10 B to 10 D.
  • the side surface 26 A of the transparent plate 20 A is a flat surface parallel to the normal direction nd of the display surface 11 A 1 (viewer-side surface) of the display section 11 A; however, the side surface 26 A may be a curved surface or may be comprised of a combination of flat surfaces and/or curved surfaces. Further, a reflective layer, for example, may be formed on the side surface 26 A. The same holds true for the other transparent plates 20 B to 20 D.
  • a reflective layer 50 which is capable of reflecting light, on the side surface 26 A of the transparent plate 20 A.
  • incident light By causing incident light to reflect from the reflective layer 50 on the side surface 26 A and allowing at least part of the reflected light to exit the light exit-side deflection portion 22 A or 42 A, it becomes possible to further reduce the visibility of the non-display area (joint portion) and enhance image continuity.
  • At least part of the side surface 26 A may be an inclined surface 28 A inclined at an angle with respect to the normal direction of the display surface. Further, a reflective layer 50 may be formed on the entire side surface 26 A including the inclined surface 28 A.
  • the side surface 26 A As shown in FIG. 10( c ), it is also possible to design the side surface 26 A as a curved surface, and to form a reflective layer 50 on the curved surface.
  • the reflective layer 50 may have surface irregularities (i.e. concavity and convexity) on the side facing the side surface 26 A.
  • the surface irregularities diffusedly reflex light that enters the side surface 26 A. This can increase the amount of light which is reflected from the side surface 26 A and exits the light exit-side deflection portion 22 A or 42 A, thereby increasing the brightness of an image.
  • Such surface irregularities may be formed on the side surface 26 A and the inclined surface 28 A facing the reflective layer 50 .
  • a bonding layer 30 may be provided as illustrated in FIGS. 10( b ) and 10 ( c ) to increase the bonding strength between the transparent plate 20 A and the display device 10 A.
  • the transparent plate section 20 is comprised of an array of the transparent plates 20 A to 20 D which are separate members and arranged adjacent to each other; however, the transparent plates 20 A to 20 D may be comprised of parts of a single plate-like member.
  • FIG. 11( a ) shows a variation of the array-type display apparatus 100 , 400 in a cross-section corresponding to the cross-section taken along the line A-A of FIG. 1 , illustrating the variation in which the transparent plate section 20 is comprised of a single plate-like member.
  • the use of such a transparent plate section 20 allows the viewer to more perceive the display screen, on which an image is displayed, as one screen. This allows the viewer to view an image with enhanced continuity.
  • the display devices 10 A to 10 D and the transparent plates 20 A to 20 D are arranged planarly in the array-type display apparatus 100 , 400 ; however, it is also possible to arrange constituent display devices in a non-planar manner.
  • the display devices 10 A to 10 C and the transparent plates 20 A to 20 C may be arranged such that the adjacent display surfaces of the display sections 11 A to 11 C make an angle with each other. This can improve the convenience and the design of the array-type display apparatus, making it possible to display an image to the viewer O in a manner suited for the intended use and the environment.
  • the display surfaces of the display sections 11 A to 11 D of the display devices 10 A to 10 D are flat surfaces; however, the display surfaces may be curved surfaces, such as a cylindrical surface or a spherical surface.
  • the transparent plates 20 A to 20 D (especially the planar portions 21 A to 21 D and the light entrance portions 24 A to 24 D) may have a shape that follows the shape of the display surfaces.
  • the transparent plates 20 A to 20 D may optionally contain a diffusing agent, or may have a matte surface.
  • the array-type display apparatus 100 , 400 is comprised of an array of the display devices 10 A to 10 D and the corresponding array of the transparent plates 20 A to 20 D; however, a transparent plate, e.g. the transparent plate 20 A, may be provided in a common display device (e.g. comprised solely of the display device 10 A) so as to reduce the visibility of a non-display area composed of a frame member or the like.
  • the array-type display apparatus 600 of the second embodiment differs from the above-described array-type display apparatus of the first embodiment in that each transparent plate 20 further has a light entrance-side deflection portion at least in an area of a peripheral part of the display device 510 -side surface, the area facing a display section 511 when viewed in the normal direction of the display surface of the display section 511 .
  • the other construction of the array-type display apparatus of the second embodiment can be the same as the first embodiment or the above-described modification or variations.
  • the following description given with reference to FIGS. 12 through 22 , illustrates a case where the transparent plates 520 of the array-type display apparatus 600 each have no corner deflection portion.
  • the transparent plates of the array-type display apparatus of the second embodiment may, of course, be provided with corner deflection portions.
  • FIG. 12 is a diagram illustrating the array-type display apparatus 600 of this embodiment.
  • FIG. 13 shows diagrams illustrating a display device 510 A and a transparent plate 520 A, provided in the array-type display apparatus 600 of this embodiment.
  • FIG. 13( a ) shows the array-type display apparatus 600 in a cross-section taken along the line C-C of FIG. 12 and parallel to the thickness direction of the array-type display apparatus 600 .
  • FIG. 13( b ) is a plan view of the display device 510 A as viewed from the viewer in the front direction.
  • FIG. 13( c ) is a plan view of the transparent plate 520 A as viewed from the viewer in the front direction, while FIG. 13( d ) is a plan view of the transparent plate 520 A as viewed from the display device 510 A in the front direction.
  • FIGS. 1 shows diagrams illustrating a display device 510 A and a transparent plate 520 A, provided in the array-type display apparatus 600 of this embodiment.
  • FIG. 13( a ) shows the array-type display apparatus 600 in a cross-section
  • 13( b ), 13 ( c ), 13 ( d ) show only the display device 510 A or the transparent plate 520 A as a representative; the other display devices 510 B to 510 D or the other transparent plates 520 B to 520 D have the same shape as the display device 510 A or the transparent plate 520 A.
  • the array-type display apparatus 600 of this embodiment includes a display device section 510 and a transparent plate section 520 .
  • the transparent plate section 520 is provided on the viewer side (light exit side) of the display device section 510 and, in this embodiment, is bonded to the display device section 510 via a not-shown bonding layer provided between the transparent plate section 520 and the display device section 510 .
  • the bonding layer, which bonds the transparent plate section 520 and the display device section 510 together, preferably has a high light transmittance and has the same refractive index as the transparent plate section 520 (with no substantial difference between their refractive indices), and is optically equivalent to the transparent plate section 520 .
  • the display device section 510 is comprised of an array of display devices to display images.
  • the display devices 510 A to 510 D are arranged adjacent to each other such that the viewer-side surfaces (display surfaces) of display sections 511 A to 511 D, which are capable of displaying images, lie in a plane.
  • the display devices 510 A to 510 D are arranged in a 2 ⁇ 2 matrix (two in the vertical direction and two in the lateral direction when the array-type display apparatus 600 is in use).
  • the number of the display devices, constituting the array-type display apparatus 600 is not limited to 4, but may be 2, 6, 8 or other number depending on the screen size, etc.
  • the display device 510 A when viewed in the normal direction nd (see FIG. 14) of the display surface 511 A 1 of the display section 511 A, the display device 510 A includes the display section 511 A, which is capable of displaying images, and a non-display area 512 A located around the display section 511 A and which does not display images.
  • the non-display area 512 A may be composed of, for example, a frame member or an electrode section.
  • the display section 511 A of this embodiment has a generally-rectangular shape, and the non-display area 512 A is located around and adjacent to the display section 511 A.
  • the display device 510 A has been described as a representative example; the other display devices 510 B to 510 D have the same construction.
  • the display devices 510 A to 510 D may be plasma display devices, liquid crystal display devices, organic EL display devices (organic LED display devices), or the like, or may be rear projection display devices.
  • the transparent plate section 520 is comprised of a transparent generally-flat plate-like member disposed on the viewer side of the display device section 510 .
  • the transparent plate section 520 of this embodiment is comprised of an array of transparent plates 520 A to 520 D arranged adjacent to each other in a 2 ⁇ 2 matrix (two in the vertical direction and two in the lateral direction when the array-type display apparatus is in use) and has a generally-flat plate-like shape.
  • the transparent plates 520 A to 520 D are disposed in positions corresponding to the display devices 510 A to 510 D, respectively.
  • the transparent plates 520 A to 520 D are disposed nearer to the viewer than the display sections 511 A to 511 D of the corresponding display devices 510 A to 510 D, and cover the display sections 511 A to 511 D and the non-display areas 512 A to 512 D of the display devices 510 A to 510 D.
  • the transparent plates 520 A to 520 D of the transparent plate section 520 are preferably formed of a transparent material having a high light transmittance.
  • the material for the transparent plates 520 A to 520 D include a polycarbonate (PC) resin, an acrylic resin, a styrene resin, an olefin resin, glass, ceramics, etc.
  • the transparent plates 520 A to 520 D can be produced by subjecting the material to e.g. injection molding or casting.
  • the transparent plates 520 A, 520 B, 520 C, 520 D are disposed on the viewer side of the display devices 510 A to 510 D in positions corresponding to the display devices 510 A, 510 B, 510 C, 510 D, respectively.
  • the sizes of the transparent plates 520 A to 520 D coincide with the sizes of the corresponding display devices 510 A to 510 D.
  • the transparent plates 520 A to 520 D are each a generally-flat plate-like member.
  • the transparent plate 520 A has a viewer-side (light exit-side) surface consisting of a planar portion 521 A and a light exit-side deflection portion 522 A located around the planar portion 521 A.
  • the transparent plate 520 A has a display device section 510 A-side (light entrance-side) surface consisting of a planar portion 523 A, a light entrance-side deflection portion 524 A located around the planar portion 523 A, and a bonding portion 525 A provided in an area around the light entrance-side deflection portion 524 A and corresponding to the non-display area 512 A.
  • the side surface 527 A is parallel to the thickness direction of the transparent plate 520 A and perpendicular to the planar portions 521 A, 523 A.
  • the transparent plate 520 A has been described as a representative example; the other transparent plates 520 B to 520 D have the same construction.
  • the light exit-side deflection portions 522 A to 522 D are each located in a peripheral end area of the viewer-side surface of each of the transparent plates 520 A to 520 D.
  • the bonding portions 525 A to 525 D and the inner adjacent light entrance-side deflection portions 524 A to 524 D are each located in a peripheral end area of the display device portion 510 -side surface of each of the transparent plates 520 A to 520 D.
  • the light exit-side planar portions 521 A to 521 D and the light entrance-side planar portions 523 A to 523 D have a size which is slightly smaller than the size of the display sections 511 A to 511 D.
  • FIG. 14 is a cross-sectional view of the array-type display apparatus 600 of this embodiment.
  • FIG. 14 shows an enlarged cross-sectional view of a portion of the array-type display apparatus 600 in a cross-section taken along the line C-C of FIG. 12 and parallel to the thickness direction of the array-type display apparatus 600 .
  • FIG. 14 shows only the display device 510 A and the transparent plate 520 A and, in addition, depicts the display device 510 A in a greatly simplified manner.
  • the cross-section of FIG. 14 is perpendicular to the side surface 527 A whose longitudinal direction is parallel to the longitudinal direction of the light exit-side deflection portion 522 A shown in FIG. 14 and which is located adjacent to the light exit-side deflection portion 522 A, and is also perpendicular to the display surface 511 A 1 of the display section 511 A.
  • FIG. 14 and the below-described FIGS. 15 to 18 show the cross-section perpendicular to one side (side surface) of the display device 510 A and one side (side surface) of the transparent plate 520 A; the display device 510 A and the transparent plate 520 A have the same cross-sectional shape in the corresponding cross-sections perpendicular to the other sides. While the following description solely illustrates the display device 510 A and the transparent plate 520 A for easier understanding, the description holds true for the other display devices 510 B to 510 D and the other transparent plates 520 B to 520 D unless otherwise stated.
  • the planar portion 521 A on the light exit side of the transparent plate 520 A is parallel to the display surface 511 A 1 (viewer-side surface) of the display section 511 A.
  • the planar portion 521 A When viewed in the front direction, the planar portion 521 A has a shape similar to the shape of the display surface of the display section 511 A and, in this embodiment, has a rectangular shape.
  • the light exit-side deflection portion 522 A is provided around and adjacent to the planar portion 521 A (see FIG. 12 and FIGS. 13( a ) and 13 ( c )).
  • the light exit-side deflection portion 522 A is provided at least in an area of a peripheral area of the viewer-side surface, the area facing the non-display area 512 A when viewed in the normal direction nd of the display surface 511 A 1 of the display section 511 A.
  • the light exit-side deflection portion 522 A of this embodiment is a curved surface convexed toward the viewer, and the angle ⁇ 2 formed between the tangent plane at a point on the surface and a plane parallel to the display surface of the display section 511 A (plane parallel to the planar portion 521 A) gradually increases as the point moves from an inner position toward an outer or peripheral position on the transparent plate 520 A.
  • the light exit-side deflection portion 522 A is formed such that it is nearer to the display device 510 A at an outer or peripheral position on the transparent plate 520 A than at an inner position (nearer to the planar portion 521 A) on the transparent plate 520 A.
  • the outermost point T 1 on the light exit-side deflection portion 522 A is nearest to the display device 510 A in the thickness direction of the transparent plate 520 A.
  • the planar portion 523 A on the light entrance side of the transparent plate 520 A is parallel to the display surface 511 A 1 (viewer-side surface) of the display section 511 A.
  • the planar portion 523 A When viewed in the front direction, the planar portion 523 A has a shape similar to the shape of the display surface 511 A 1 of the display section 511 A and, in this embodiment, has a rectangular shape.
  • the light entrance-side deflection portion 524 A is located around and adjacent to the planar portion 523 A.
  • the light entrance-side deflection portion 524 A is provided at least in an area of a peripheral part of the display device 510 A-side surface of the transparent plate 520 A, the area facing the display section 511 A when viewed in the normal direction nd of the display surface 511 A 1 of the display section 511 A (see FIG. 13( d )).
  • the light entrance-side deflection portion 524 A of this embodiment is a curved surface convexed toward the viewer, and the angle ⁇ 1 formed between the tangent plane at a point on the curved surface and a plane parallel to the display surface 511 A 1 of the display section 511 A (plane parallel to the planar portion 523 A) gradually increases as the point moves from an inner position toward an outer or peripheral position.
  • the bonding portion 525 A is located in an outermost area of the display device 510 A-side surface of the transparent plate 520 A.
  • the bonding portion 525 A is located in an area around the light entrance-side deflection portion 524 A and corresponding to the non-display area 512 A, and projects toward the display device 510 .
  • the display device 510 A-side surface of the bonding portion 525 A is parallel to the viewer-side surface of the non-display area 512 A.
  • the bonding portion 525 A and the non-display area 512 A are bonded together via the bonding layer, whereby the transparent plate 520 A and the display device 510 A are bonded together.
  • an air layer 526 A having a predetermined thickness is formed between the light entrance-side deflection portion 524 A, the planar portion 523 A and the display section 511 A.
  • W 1 represents the width of the light exit-side deflection portion 522 A, i.e. the distance between the outer end and the inner end of the light exit-side deflection portion 522 A in a direction parallel to the display surface 511 A 1 of the display section 511 A
  • W 2 represents the width of the light entrance-side deflection portion 524 A
  • W represents the width of the non-display area 512 A.
  • H represents the distance from the outermost point T 1 (point nearest to the display device 510 A) on the light exit-side deflection portion 522 A to the bonding surface of the bonding portion 525 A in the thickness direction of the transparent plate 520 A.
  • lights L 1 , L 2 that have exited an area A which is a peripheral end area (adjacent to the non-display area 512 A) of the surface of the display section 511 A and which faces the light entrance-side deflection portion 524 A, vertically to the display surface 511 A 1 enter the light entrance-side deflection portion 524 A and are deflected outwardly at the interface between the air layer 526 A and the light entrance-side deflection portion 524 A.
  • each light L 1 , L 2 is bent outwardly such that the angle of the traveling direction of each light with respect to the normal direction nd of the display surface 511 A 1 of the display section 511 A becomes larger.
  • the lights L 1 , L 2 that have been bent at the light entrance-side deflection portion 524 A pass through the transparent plate 520 A and reach the light exit-side deflection portion 522 A.
  • the lights L 1 , L 2 are deflected at the interface between the light exit-side deflection portion 522 A and air, and are bent inwardly such that the angle of the traveling direction of each light with respect to the normal direction nd of the display surface 511 A 1 of the display section 511 A becomes smaller.
  • the lights L 1 , L 2 that have been bent at the light exit-side deflection portion 522 A travel in the normal direction nd of the display surface 511 A 1 of the display section 511 A. Accordingly, when a viewer views the display device 510 A in the front direction, the viewer perceives an image being displayed over the entire area of the transparent plate 520 A, without perceiving the non-display area 512 A.
  • the angle ⁇ 1 at a point on the light entrance-side deflection portion 524 A increases as the point moves outward. Therefore, the outward deflection (toward the non-display area) of light, which has vertically exited the display section 511 A, enters the light entrance-side deflection portion 524 A and passes through the transparent plate 520 A, is larger as the light enters at an outer point on the light entrance-side deflection portion 524 A.
  • the angle ⁇ 2 at a point on the light exit-side deflection portion 522 A increases as the point moves outward.
  • the inward deflection (toward the display section 511 A) of light, which has been deflected outward at the light entrance-side deflection portion 524 A and exits the light exit-side deflection portion 522 A is larger as the light exits at an outer point on the light exit-side deflection portion 522 A.
  • the light, which has exit the light exit-side deflection portion 522 A travels in the normal direction nd (front direction) of the display surface 511 A 1 ,
  • an image displayed on the light exit-side deflection portion 522 A is magnified from an image displayed on the area A. Therefore, an image as viewed through the transparent plate 520 A is perceived as an image which is continuous over the entire area of the viewer-side surface of the transparent plate 520 A and as a good image without a joint portion due to the non-display area 512 A.
  • FIG. 15 is a diagram illustrating the shapes of the light exit-side deflection portion 522 A and the light entrance-side deflection portion 524 A of this embodiment in detail.
  • FIG. 15 and the below-described FIGS. 16 to 18 show the same cross-section as that shown in FIG. 14 .
  • the angle ⁇ 1 formed between the tangent plane at the incident point of light L 3 on the light entrance-side deflection portion 524 A and a plane parallel to the display surface 511 A 1 is preferably equal to the angle ⁇ 2 formed between the tangent plane at the incident point (exit point) of light L 3 on the light exit-side deflection portion 522 A and a plane parallel to the display surface 511 A 1 .
  • the refraction angle ⁇ 1 of light L 3 at the light entrance-side deflection portion 524 A is equal to the incident angle ⁇ 2 of light L 3 at the light exit-side deflection portion 522 A. Accordingly, the incident angle ⁇ 1 of light L 3 at the light entrance-side deflection portion 524 A is equal to the exit angle ⁇ 2 of light L 3 at the light exit-side deflection portion 522 A.
  • the traveling direction (front direction) of light L 3 when it enters the light entrance-side deflection portion 524 A is equal to the traveling direction of light L 3 when it exits the light exit-side deflection portion 522 A; the light L 3 exits in the normal direction nd of the display surface 511 A 1 .
  • the light exit-side deflection portion 522 A is preferably located at a certain distance from the non-display area 512 A.
  • FIG. 16 illustrates the distance H at the peripheral end of the transparent plate 520 A of this embodiment.
  • T 2 represents the outermost point on the light entrance-side deflection portion 524 A, lying at the boundary between the display section 511 A and the transparent plate 520 A
  • T 3 represents the point of intersection between the plane, passing through the point T 2 and parallel to the display surface 511 A 1 of the display section 511 A, and the straight line passing through the point T 1 and perpendicular to the display surface 511 A 1 of the display section 511 A.
  • H represents the distance between the point T 1 and the point T 3 (in this embodiment is equal to the distance from the point T 1 to the bonding surface of the bonding portion 525 A in the thickness direction of the transparent plate 520 A), and W represents the distance between the point T 2 and the point T 3 (in this embodiment is equal to the width of the non-display area 512 A).
  • ⁇ (0° ⁇ 90°) represents the angle of the traveling direction of light L 4 in the transparent plate 520 A with respect to a plane parallel to the display surface 511 A 1 , when the light L 4 enters the transparent plate 520 A at the point T 2 , passes through the transparent plate 520 A and exits at the point T 1 in the normal direction nd of the display surface 511 A 1 of the display section 511 A.
  • the light L 4 which has exited the display section 511 A at the outermost point T 2 , exits the transparent plate 520 A at the outermost point T 1 , as shown in FIG. 16 .
  • the light L 4 which has entered the transparent plate 520 A at the outermost point T 2 on the light entrance-side deflection portion 524 A in the normal direction nd of the display surface 511 A 1 of the display section 511 A, passes through the transparent plate 520 A and exits it at the outermost point T 1 on the light exit-side deflection portion 522 A, i.e. the point nearest to the display device 510 A, in the normal direction nd of the display surface 511 A 1 of the display section 511 A. Accordingly, an image is displayed on the entire area of the transparent plate 520 A and the non-display area 512 A is invisible.
  • the array-type display apparatus 600 of this embodiment which satisfies the above conditions, can display an image which is continuous over the entire area of the viewer-side surfaces of the transparent plates 520 A to 520 D, while preventing display of a joint portion due to the non-display areas 512 A to 512 D between the display devices 510 A to 510 D.
  • the array-type display apparatus 600 of this embodiment can therefore display a good image comparable to an image as displayed on a single display device.
  • FIG. 17 is a diagram illustrating the magnification ratio of an image displayed on the light exit-side deflection portion 522 A of this embodiment.
  • An image displayed on the area A of the display section 511 A, from which light can exit which enters the light entrance-side deflection portion 524 A in a direction parallel to the normal direction of the display surface of the display section 511 A, is preferably reduced compared to an image displayed on the other area of the display section 511 A.
  • An image displayed on the area A therefore needs to be reduced, compared to an image displayed on the other area of the display section 511 A, so that an image displayed on the light exit-side deflection portion 522 A is not magnified or reduced compared to an image displayed on the planar portion 521 A, and that an image is displayed on the entire area of the viewer-side surface of the transparent plate 520 A with high continuity and without a distortion.
  • the reduction ratio of an image displayed on the area A is preferably equal to the reciprocal of the magnification ratio.
  • W 2 represents the length of the line segment of intersection between the area A 1 and a plane perpendicular to the end surface 527 A of the transparent plate 520 A and to the display surface 511 A 1 of the display section 511 A (i.e. the width of the area A, shown in FIG. 17 , which is equal to the width of the light entrance-side deflection portion 524 A), and W 1 represents the width of the light exit-side deflection portion 522 A, shown in FIG. 17 (i.e. the distance between the outer end and the inner end in a direction parallel to the display surface 511 A 1 of the display section 511 A).
  • the magnification ratio is W 1 /W 2 . Therefore, the reduction ratio is preferably equal to W 2 /W 1 .
  • an image formed on the display surface 511 A 1 by light that exits that area of the display section 511 A which faces the light entrance-side deflection portion 524 A when viewed in the normal direction nd of the display surface 511 A 1 of the display section 511 A is preferably reduced to W 2 /W 1 of an image formed on the display surface 511 A 1 by light that exits the other area of the display section 511 A.
  • the luminance of the image has decreased to W 2 /W 1 of the luminance on the area A. It is therefore desirable to make the luminance of an image, displayed on the area A, W 1 /W 2 times higher than the luminance of an image displayed on the other area of the display section 511 A. This makes it possible to make the luminance of an image, displayed on the transparent plate 520 A, uniform over the entire area.
  • the image is preferably magnified uniformly regardless of the position in the width direction of the light exit-side deflection portion 522 A.
  • a description will now be given of a method for designing the light exit-side deflection portion 522 A and the light entrance-side deflection portion 524 A which can uniformly magnify an image in the width direction of the light exit-side deflection portion 522 A and the light entrance-side deflection portion 524 A.
  • FIG. 18 is a diagram illustrating a method for designing the light exit-side deflection portion 522 A and the light entrance-side deflection portion 524 A of this embodiment.
  • the curved line when designing a curved line, can be designed as a collection of small line segments.
  • the curved line of each of the curved surfaces of the light exit-side deflection portion 522 A and the light entrance-side deflection portion 524 A can be designed as a collection of small line segments:
  • the outermost point T 2 on the light entrance-side deflection portion 524 A is used as a starting point and represented by T 2 (1).
  • a straight line 524 A(1) which makes an angle ⁇ 1(1) with a plane parallel to the display surface 511 A 1 and extends obliquely upward and inward, is drawn from the point T 2 (1).
  • the angle ⁇ 1(1) is preferably set in the range of 50° to 70°, more preferably around 60°.
  • the width W 2 of the light entrance-side deflection portion 524 A is divided into a predetermined number of divisions.
  • the width of each division is preferably not more than about 100 ⁇ m, because a curved line is preferably perceived not as a collection of small line segments but as a curved line.
  • the width W 2 is on the order of a few mm, it is preferably divided into at least 100 divisions.
  • WA(2) represents a point as defined by inwardly moving the point T 2 (1) a distance WP parallel to the display surface 511 A 1 of the display section 511 A.
  • the point is represented by WA(2), not WA(1), in order to use the same argument (figure in parentheses) for parameters, such as angle, at the same point.
  • a straight line is drawn from the point WA(2), extending in the normal direction nd of the display surface 511 A 1 of the display section 511 A.
  • T 2 (2) represents the point of intersection between the straight line and the above-described straight line 524 A(1).
  • 524 A(1) also represents the line segment connecting the point T 2 (1) on the light entrance-side deflection portion 524 A with the point T 2 (2).
  • the same reference numeral is used both for a line and for a small line segment which is part of the line.
  • an outermost line segment of the light exit-side deflection portion 522 A is designed.
  • the outermost point T 1 (1) on the light exit-side deflection portion 522 A is determined by the angle ⁇ 1(1) and the width W of the non-display area 512 A.
  • light that has exited the display section 511 A in the normal direction nd of the display surface 511 A 1 of the display section 511 A and reached the line segment 524 A(1) is deflected at the line segment 524 A(1) and travels in the transparent plate 520 A in a direction which makes an angle ⁇ (1), expressed by the following formula, with a plane parallel to the display section 511 A:
  • N represents the refractive index of the transparent plate 520 A.
  • T 1 (1) represents a starting point as defined by moving the point T 2 the distance H in a direction perpendicular to the display section 511 A and outwardly moving the point 12 a distance equal to the width W of the non-display area 512 A.
  • the angle ⁇ 1(1) and the angle ⁇ 2(1) are as follows:
  • Angle ⁇ 1(1) angle formed between the tangent plane at the incident point of light, which has exited the display section 511 A in the normal direction nd of the display surface 511 A 1 , on the light entrance-side deflection portion 524 A and a plane parallel to the display surface 511 A 1 of the display section 511 A
  • Angle ⁇ 2(1) angle formed between the tangent plane at the incident point of said light on the light exit-side deflection portion 522 A and a plane parallel to the display surface 511 A 1 of the display section 511 A
  • a straight line 522 A(1) is drawn from the point T 1 (1) in a direction at the angle ⁇ 2(1) which is equal to the angle ⁇ 1(1).
  • WB(2) represents a point as defined by inwardly moving the point T 1 (1) a distance, which is equal to the width WQ, in a direction parallel to the display surface 511 A 1 .
  • the “W 1 /W 2 ” is the magnification ratio of an image displayed on the light exit-side deflection portion 522 A.
  • T 1 (2) represents the point of intersection between the straight line and the straight line 522 A(1).
  • 522 A(1) also represents the line segment connecting the starting point T 1 (1) on the light exit-side deflection portion 522 A with the point T 1 (2).
  • “W 1 /W 2 ” is the magnification ratio of an image displayed on the light exit-side deflection portion 522 A. Accordingly, the line segment 524 A(2) is designed so that light, which enters the transparent plate 520 A at the point T 2 (2) and is deflected by the line segment 524 A(2) extending inwardly from the point T 2 (2), will reach the point T 1 (2).
  • the angle ⁇ 1(2) and the angle ⁇ (2) should be set so that light that exits the display section 511 A in the normal direction nd of the display surface 511 A 1 of the display section 511 A, will be deflected by the line segment 524 A(2) and travel in a light path, represented by the line segment K(2) connecting the point T 2 (2) and the point T 1 (2).
  • a straight line 524 A(2) is drawn in a direction which makes the angle ⁇ 1(2) with a plane parallel to the display surface 511 A 1 of the display section 511 A.
  • the angle ⁇ 1(2) and the angle ⁇ (2) i.e. the angle formed between the traveling direction of light from the line 524 A(2) in the transparent plate 520 A and a plane parallel to the display section 511 A, satisfy the following formula:
  • N represents the refractive index of the transparent plate 520 A.
  • WA(3) represents a point as defined by inwardly moving the point WA(2) a distance, which is equal to the width WP, in a direction parallel to the display surface 511 A 1 .
  • a straight line is drawn from the point WA(3), extending in the normal direction nd of the display surface 511 A 1 .
  • T 2 (3) represents the point of intersection between the straight line and the straight line 524 A(2).
  • 524 A(2) also represents the line segment connecting the point T 2 (2) and the point T 2 (3).
  • a line segment 522 A(2) is determined from the line segment 524 A(2) in the same manner as the above-described manner in which the line segment 522 A(1) is determined from the line segment 524 A(1).
  • a line segment 524 A(3) is determined from the line segment 522 A(2) in the same manner as the above-described manner in which the line segment 524 A(2) is determined from the line segment 522 A(1).
  • a collection of small line segments, corresponding to the light entrance-side deflection portion 524 A, and a collection of small line segments, corresponding to the light exit-side deflection portion 522 A can be determined in the cross-section shown in FIG. 14 .
  • FIG. 22 shows diagrams illustrating examples of the shapes of the light exit-side deflection portion 522 A and the light entrance-side deflection portion 524 A of this embodiment.
  • the diagrams each show an example of a collection of small line segments which approximates the curve of the light exit-side deflection portion 522 A or the curve of the light entrance-side deflection portion 524 A in the cross-section shown e.g. in FIG. 14 .
  • the collections of small line segments can be calculated by the above-described calculation method.
  • FIG. 22( a ) shows the collection of small line segments which approximates the curve of the light exit-side deflection portion 522 A in the cross-section shown in FIG. 14
  • FIG. 22( b ) shows the collection of small line segments which approximates the curve of the light entrance-side deflection portion 524 A in the cross-section shown in FIG. 14 .
  • FIG. 22( a ) shows the collection of small line segments which approximates the curve of the light exit-side deflection portion 522 A in the cross-section shown in FIG. 14
  • FIG. 22( b ) shows the collection of small line segments which approximates the curve of the light entrance-side deflection
  • the ordinate represents the dimension in the thickness direction of the transparent plate 520 A, using relative values taking the width W of the non-display section 512 A as 3, and the abscissa represents the division number for the light exit-side deflection portion 522 A or the light entrance-side deflection portion 524 A in the width direction, with the maximum value being 500.
  • the array-type display apparatus 600 can display a good image with high continuity while making the non-display area invisible.
  • the array-type display apparatus 600 capable of displaying such a good image, can be produced with ease.
  • FIG. 19 is a diagram illustrating an array-type display apparatus 700 which is a modification of the above-described array-type display apparatus of the second embodiment.
  • FIG. 19 shows the array-type display apparatus 700 in a cross-section corresponding to the cross-section shown in FIGS. 14 through 18 .
  • the array-type display apparatus 700 has the same shape as the array-type display apparatus 600 of the second embodiment except that the light exit-side deflection portion 542 A and the light entrance-side deflection portion 544 A, formed in the transparent plate 520 A, are not curved but polygonally curved and each consist of a number of inclined surfaces (flat surfaces) arranged in the inner-outer direction.
  • the light exit-side deflection portion 542 A and the light entrance-side deflection portion 544 A each consist of a number of flat surfaces (inclined surfaces).
  • the angle ⁇ 4 formed between each inclined surface of the light exit-side deflection portion 542 A and a plane parallel to the display surface 511 A 1 (see FIG. 14 ) of the display section 511 A gradually increases with distance from the innermost position on the light exit-side deflection portion 542 A in the width direction.
  • the angle ⁇ 3 formed between each inclined surface of the light entrance-side deflection portion 544 A and a plane parallel to the display surface 511 A 1 gradually increases with distance from the innermost position on the light entrance-side deflection portion 544 A in the width direction.
  • the shape of the light exit-side deflection portion 542 A and the shape of the light entrance-side deflection portion 544 A, each defined by the flat surfaces, can approximate a curved surface convexed toward the viewer.
  • the array-type display apparatus 700 of this embodiment including the transparent plate 520 A having the polygonally curved light exit-side deflection portion 542 A and the polygonally curved light entrance-side deflection portion 544 A, can achieve the same effects as the above-described array-type display apparatus 600 which includes the transparent plate 520 A having the light exit-side deflection portion 522 A and the light entrance-side deflection portion 524 A.
  • the present invention is not limited to such light exit-side and light entrance-side deflection portions.
  • light exit-side and light entrance-side deflection portions each consisting of a curved surface, curved surfaces arranged in the inner-outer direction, inclined surfaces arranged in the inner-outer direction, or at least one curved surface and at least one inclined surface, arranged in the inner-outer direction.
  • FIG. 20 shows diagrams illustrating variations of the transparent plates 520 A to 520 D.
  • FIG. 21 shows diagrams illustrating variations of the array-type display apparatuses 600 , 700 .
  • FIGS. 20 and 21 and the following description solely illustrate the transparent plate 520 A and the display device 510 A for easier understanding, the illustration holds true for the other transparent plates 520 B to 520 D and the other display devices 510 B to 510 D.
  • the light exit-side deflection portion 522 A or 542 A and the light entrance-side deflection portion 524 A or 544 A are each a curved surface or each consist of a number of flat surfaces (inclined surfaces); however, one of the light exit-side deflection portion 522 A or 542 A and the light entrance-side deflection portion 524 A or 544 A may be designed as a curved surface and the other may be designed as a polygonally curved surface.
  • the side surface 527 A of the transparent plate 520 A lying nearer to the display device section 510 than the light exit-side deflection portion 522 A or 542 A, is a flat surface parallel to the normal direction nd of the display surface (viewer-side surface) of the display section 511 A; however, the side surface 527 A may be a curved surface or may be comprised of a combination of flat surfaces and/or curved surfaces. Further, a reflective layer, for example, may be formed on the side surface 527 A. The same holds true for the other transparent plates 520 B to 520 D and also for the transparent plates 520 A to 520 D of the modification shown in FIG. 19
  • a reflective layer 530 which is capable of reflecting light, on the side surface 527 A of the transparent plate 520 A.
  • the reflective layer 530 may have surface irregularities (i.e. concavity and convexity) on the side facing the side surface 527 A. The surface irregularities diffusedly reflex light that enters the side surface 527 A. This can increase the amount of light which is reflected from the side surface 527 A and exits the light exit-side deflection portion 522 A or 542 A, thereby enhancing image continuity.
  • At least part of the side surface 527 A may be an inclined surface 528 A.
  • a reflective layer 530 may be formed on the entire side surface 527 A including the inclined surface 528 A.
  • the side surface 527 A As shown in FIG. 20( c ), it is also possible to design the side surface 527 A as a curved surface, and to form a reflective layer 530 on the curved surface.
  • a bonding layer 535 A may be provided as illustrated in FIGS. 20( b ) and 20 ( c ) to increase the bonding strength between the transparent plate 520 A and the display device 510 A.
  • the above construction can increase the amount of light which is reflected from the side surface 527 A and the inclined surface 528 A, and exits the light exit-side deflection portion 522 A or 542 A, thereby enhancing image continuity.
  • the reflective layer 530 may have surface irregularities on the side facing the side surface 527 A.
  • the transparent plate section 520 is comprised of an array of the transparent plates 520 A to 520 D which are separate members and arranged adjacent to each other; however, the transparent plates 520 A to 520 D may be comprised of parts of a single plate-like member.
  • FIG. 21( a ) shows a variation of the array-type display apparatus 600 or 700 in a cross-section corresponding to the cross-section taken along the line C-C of FIG. 12 , illustrating the variation in which the transparent plate section 520 is comprised of a single plate-like member.
  • the use of such a transparent plate section 520 allows the viewer to more perceive the display screen, on which an image is displayed, as one screen. This allows the viewer to view an image with enhanced continuity.
  • the display devices 510 A to 510 D and the transparent plates 520 A to 520 D are arranged planarly in the array-type display apparatus 600 , 700 ; however, it is also possible to arrange constituent display devices in a non-planar manner.
  • the display devices 510 A to 510 C and the transparent plates 520 A to 520 C may be arranged such that the adjacent display screens make an angle with each other. This can improve the convenience and the design of the array-type display apparatus and makes it possible to display an image to the viewer O in a manner suited for the intended use and the environment.
  • the display surfaces (viewer-side surfaces) of the display sections 511 A to 511 D of the display devices 510 A to 510 D are flat surfaces; however, the display surfaces may be curved surfaces, such as a cylindrical surface or a spherical surface.
  • the transparent plates 520 A to 520 D (especially the planar portions 521 A to 521 D, 523 A to 523 D) may have a shape that follows the shape of the display surfaces of the display sections 511 A to 511 D of the display devices 510 A to 510 D.
  • the transparent plates 520 A to 520 D may optionally contain a diffusing agent, or may have a matte surface.
  • the array-type display apparatus 600 , 700 is comprised of an array of the display devices 510 A to 510 D and the corresponding array of the transparent plates 520 A to 520 D; however, a transparent plate, e.g. the transparent plate 520 A, may be provided in a common display device (e.g. comprised solely of the display device 510 A) so as to reduce the visibility of a non-display area composed of a frame member or the like.
  • the array-type display apparatus of the second embodiment may have the corner deflection portions according to the first embodiment.
  • the transparent plate section comprised of the transparent plates each having the corner deflection portions can significantly reduce the visibility of a joint portion, can display an image with high continuity, and can display a good image comparable to an image as displayed on a single display device.
  • the present invention is not limited to the embodiments described above.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)
US14/117,156 2012-03-26 2013-03-26 Array-type display apparatus Abandoned US20140104712A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/081,082 US8807775B2 (en) 2012-03-26 2013-11-15 Array-type display apparatus

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP2012069921A JP2013200495A (ja) 2012-03-26 2012-03-26 配列型表示装置
JP2012-069921 2012-03-26
JP2012139235A JP5382168B1 (ja) 2012-06-20 2012-06-20 配列型表示装置
JP2012-139235 2012-06-20
PCT/JP2013/058786 WO2013146783A1 (ja) 2012-03-26 2013-03-26 配列型表示装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2013/058786 A-371-Of-International WO2013146783A1 (ja) 2012-03-26 2013-03-26 配列型表示装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/081,082 Continuation US8807775B2 (en) 2012-03-26 2013-11-15 Array-type display apparatus

Publications (1)

Publication Number Publication Date
US20140104712A1 true US20140104712A1 (en) 2014-04-17

Family

ID=49260034

Family Applications (2)

Application Number Title Priority Date Filing Date
US14/117,156 Abandoned US20140104712A1 (en) 2012-03-26 2013-03-26 Array-type display apparatus
US14/081,082 Active US8807775B2 (en) 2012-03-26 2013-11-15 Array-type display apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
US14/081,082 Active US8807775B2 (en) 2012-03-26 2013-11-15 Array-type display apparatus

Country Status (5)

Country Link
US (2) US20140104712A1 (ja)
EP (2) EP2717244A4 (ja)
CN (2) CN103650020B (ja)
DK (1) DK2728570T3 (ja)
WO (1) WO2013146783A1 (ja)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170045318A (ko) * 2015-05-29 2017-04-26 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 디스플레이 스크린 패널 및 이를 구비하는 이동 단말기
US10416950B2 (en) 2014-04-07 2019-09-17 Samsung Electronics Co., Ltd. Tiled display system and method for processing images thereof
EP3706178A1 (en) * 2019-03-08 2020-09-09 InnoLux Corporation Tiled display device
CN113219713A (zh) * 2021-04-30 2021-08-06 惠科股份有限公司 显示面板和显示装置

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI537899B (zh) * 2013-02-05 2016-06-11 業鑫科技顧問股份有限公司 顯示元件、顯示裝置及拼接式顯示器
KR102248785B1 (ko) * 2014-06-19 2021-05-10 삼성디스플레이 주식회사 디스플레이 모듈 및 이를 포함하는 멀티 디스플레이 장치
CN104460084B (zh) * 2014-12-10 2018-05-29 深圳市华星光电技术有限公司 一种用于液晶显示的边框结构
US10852456B2 (en) * 2015-03-31 2020-12-01 Saturn Licensing Llc Light source lens, illumination unit, and display unit
KR102396325B1 (ko) * 2015-10-12 2022-05-13 삼성전자주식회사 엘이디 디스플레이 장치의 광학 부재 및 엘이디 디스플레이 장치
CN105448198A (zh) * 2016-01-04 2016-03-30 京东方科技集团股份有限公司 一种拼接屏及其制作方法、显示装置
CN106686423B (zh) * 2016-12-30 2018-03-20 惠科股份有限公司 一种多画面显示方法及显示装置
CN109427261A (zh) * 2017-08-22 2019-03-05 深圳市艾比森光电股份有限公司 一种led显示屏
KR102481394B1 (ko) * 2017-08-31 2022-12-23 엘지디스플레이 주식회사 디스플레이 장치와 이를 포함하는 멀티 스크린 디스플레이 장치
US20220085122A1 (en) * 2019-12-03 2022-03-17 Shanghai Tianma Micro-electronics Co., Ltd. Display panel and display device
US11067745B1 (en) * 2020-07-20 2021-07-20 Seamless Technology Inc. Display assembly including at least two display devices
EP4120227A4 (en) * 2021-03-26 2023-04-26 BOE Technology Group Co., Ltd. SPLICE DISPLAY UNIT AND DISPLAY SCREEN
CN218510787U (zh) * 2022-08-24 2023-02-21 法雷奥照明湖北技术中心有限公司 光学组件、照明装置及机动车辆

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008149449A1 (ja) * 2007-06-07 2008-12-11 Telesystems Co., Ltd. マルチディスプレイ装置
US20110242686A1 (en) * 2008-12-18 2011-10-06 Sharp Kabushiki Kaisha Display device
US20130335673A1 (en) * 2011-03-07 2013-12-19 Sharp Kabushiki Kaisha Display device, multi-display system and method for manufacturing display device

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05188873A (ja) * 1992-01-08 1993-07-30 Mitsubishi Electric Corp 大画面ディスプレイ装置
US5656893A (en) 1994-04-28 1997-08-12 Matsushita Electric Industrial Co., Ltd. Gas discharge display apparatus
JPH0863110A (ja) * 1994-08-25 1996-03-08 Matsushita Electron Corp 平板型画像表示装置
JP2000122571A (ja) 1998-10-16 2000-04-28 Noritake Co Ltd タイル型画像表示装置
JP3762123B2 (ja) * 1998-12-21 2006-04-05 日本放送協会 マルチ投射型スクリーン
GB0028890D0 (en) * 2000-11-27 2001-01-10 Isis Innovation Visual display screen arrangement
CN1782835A (zh) * 2004-11-30 2006-06-07 三洋电机株式会社 液晶显示装置
JP2007192977A (ja) 2006-01-18 2007-08-02 Seiko Epson Corp タイリングディスプレイ
CN101868814B (zh) * 2007-11-22 2013-06-05 夏普株式会社 显示装置
WO2009157150A1 (ja) * 2008-06-25 2009-12-30 シャープ株式会社 表示装置
EP2306437A4 (en) * 2008-06-26 2011-12-21 Sharp Kk DISPLAY DEVICE AND ELECTRONIC DEVICE
WO2010122781A1 (ja) * 2009-04-21 2010-10-28 シャープ株式会社 表示装置
JP5650388B2 (ja) * 2009-10-05 2015-01-07 三菱電機株式会社 有機ｅｌパネル、パネル接合型発光装置、有機ｅｌパネルの製造方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008149449A1 (ja) * 2007-06-07 2008-12-11 Telesystems Co., Ltd. マルチディスプレイ装置
US20110242686A1 (en) * 2008-12-18 2011-10-06 Sharp Kabushiki Kaisha Display device
US20130335673A1 (en) * 2011-03-07 2013-12-19 Sharp Kabushiki Kaisha Display device, multi-display system and method for manufacturing display device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Machine Translation of WO2008/149449 *

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10416950B2 (en) 2014-04-07 2019-09-17 Samsung Electronics Co., Ltd. Tiled display system and method for processing images thereof
KR20170045318A (ko) * 2015-05-29 2017-04-26 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 디스플레이 스크린 패널 및 이를 구비하는 이동 단말기
KR102051717B1 (ko) * 2015-05-29 2019-12-03 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 디스플레이 스크린 패널 및 이를 구비하는 이동 단말기
EP3187925B1 (en) * 2015-05-29 2019-12-18 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Cover panel for a display and mobile terminal having the same
EP3706178A1 (en) * 2019-03-08 2020-09-09 InnoLux Corporation Tiled display device
US11275403B2 (en) * 2019-03-08 2022-03-15 Innolux Corporation Tiled display device
CN113219713A (zh) * 2021-04-30 2021-08-06 惠科股份有限公司 显示面板和显示装置

Also Published As

Publication number Publication date
EP2728570B1 (en) 2016-09-07
EP2717244A4 (en) 2014-12-31
EP2717244A1 (en) 2014-04-09
CN103778859A (zh) 2014-05-07
US20140071657A1 (en) 2014-03-13
CN103650020B (zh) 2017-12-12
CN103778859B (zh) 2015-11-18
EP2728570A1 (en) 2014-05-07
CN103650020A (zh) 2014-03-19
US8807775B2 (en) 2014-08-19
WO2013146783A1 (ja) 2013-10-03
DK2728570T3 (en) 2016-11-21

Similar Documents

Publication Publication Date Title
US20140104712A1 (en) Array-type display apparatus
US9285669B2 (en) Reflection screen and image display system
JP5020383B2 (ja) 表示装置
US9081225B2 (en) Liquid crystal display device
JP6717051B2 (ja) スクリーン、映像表示装置
JP2013195458A (ja) 配列型表示装置
JP5939116B2 (ja) 反射スクリーン、映像表示システム
JP2018120008A (ja) スクリーン、映像表示装置
JP2013257496A (ja) 透過型スクリーン、背面投射型表示装置
JP2014199375A (ja) 反射スクリーン、映像表示システム
JP2014186249A (ja) スクリーンユニット、マルチスクリーン、背面投射型表示装置
JP5970920B2 (ja) 透過型スクリーン、背面投射型表示装置
JP2016062031A (ja) 反射型スクリーン、映像表示システム
JP2014115343A (ja) 透過型スクリーン、背面投射型表示装置
JP5949355B2 (ja) 反射スクリーン、映像表示システム
JP2013073077A (ja) 反射型スクリーン及びそれを用いた投射画像表示システム
JP2013213882A (ja) 反射スクリーン、映像表示システム
JP2014142429A (ja) 反射型スクリーン、前面投射型表示装置、多画面表示装置
JP6747132B2 (ja) 透過型スクリーン、背面投射型表示装置
JP4882109B2 (ja) 表示装置
JP5439786B2 (ja) 光拡散シート、液晶映像源ユニット及び液晶表示装置
JP5949356B2 (ja) 反射スクリーン、立体映像表示システム
JP2015014649A (ja) 反射型スクリーン、映像表示システム
JP2014119607A (ja) 透過型スクリーン、背面投射型表示装置、多画面表示装置
JP2013200495A (ja) 配列型表示装置

Legal Events

Date Code Title Description
AS Assignment

Owner name: DAI NIPPON PRINTING CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SEKIGUCHI, HIROSHI;GOTO, MASAHIRO;TAKAHASHI, KATSUNORI;SIGNING DATES FROM 20130910 TO 20130913;REEL/FRAME:031584/0231

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION