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WO2010055565A1 - Filtre optique et dispositif d'affichage - Google Patents

Filtre optique et dispositif d'affichage Download PDF

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Publication number
WO2010055565A1
WO2010055565A1 PCT/JP2008/070677 JP2008070677W WO2010055565A1 WO 2010055565 A1 WO2010055565 A1 WO 2010055565A1 JP 2008070677 W JP2008070677 W JP 2008070677W WO 2010055565 A1 WO2010055565 A1 WO 2010055565A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical filter
layer
display device
screen frame
display
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.)
Ceased
Application number
PCT/JP2008/070677
Other languages
English (en)
Japanese (ja)
Inventor
隆介 福島
利治 大石
高▲英▼ 藤本
寛晃 吉松
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
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
Application filed by Pioneer Corp filed Critical Pioneer Corp
Priority to PCT/JP2008/070677 priority Critical patent/WO2010055565A1/fr
Publication of WO2010055565A1 publication Critical patent/WO2010055565A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/72—Modifying the appearance of television pictures by optical filters or diffusing screens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/11—Anti-reflection coatings
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks

Definitions

  • the present invention relates to an optical filter having an antireflection layer and a display device including the optical filter.
  • the thing of patent document 1 is equipped with PDP which affixed the optical filter which has an electromagnetic wave shielding layer, an infrared rays absorption layer, and an antireflection layer on the display surface with the adhesion layer.
  • an optical filter plate formed of tempered glass or the like having antireflection layers provided on both sides is disposed on the display surface side of the PDP so as to face each other with a predetermined gap between the PDP and the optical filter plate. Double reflection due to double reflection of outside light is prevented.
  • an object of the present invention is to provide an optical filter that can provide a good visual appearance and provide a good appearance, and a display device including the optical filter.
  • An optical filter according to the present invention is an optical filter disposed to face a display surface of a display device main body with a predetermined gap, and includes a thin plate-like translucent base material and the translucent base material.
  • an outer antireflection layer provided on the surface, wherein the screen frame layer is provided such that the inner peripheral edge side is gradually light-transmitting from the outer peripheral edge side.
  • the display device according to the present invention is disposed so as to face a display device body having a display surface and the display surface side of the display device body through a predetermined gap. And the optical filter described above.
  • FIG. 1 It is an exploded sectional view showing a schematic structure of a display concerning one embodiment of the present invention. It is sectional drawing which shows schematic structure of the display apparatus main body and optical filter in FIG. It is sectional drawing which shows schematic structure of the display apparatus main body and optical filter in 2nd embodiment. It is sectional drawing which shows schematic structure of the display apparatus main body and optical filter in 3rd embodiment.
  • FIG. 1 is an exploded cross-sectional view illustrating a schematic configuration of a display device.
  • FIG. 2 is a cross-sectional view illustrating a schematic configuration of the display device main body and the optical filter. Note that FIGS. 1 and 2 exaggerate the thickness dimension of each configuration in order to facilitate understanding of the configuration.
  • the screen frame layer is indicated by a bold line for convenience of explanation, but the screen frame layer is formed with gradation. Further, in FIG. 2, for convenience of explanation, the configuration for connecting the flexible cable is omitted.
  • reference numeral 100 denotes a display device.
  • the display device 100 is a device that displays on the screen image data such as still images and video input to an input terminal (not shown).
  • the display device 100 includes a housing 200, a display device body 300, an optical filter 400, and the like.
  • the housing 200 is formed in a substantially square thin box shape with one surface opened.
  • the casing 200 can be attached with a middle case (not shown) to which the display device main body 300 and the optical filter 400 are attached.
  • the display device main body 300 includes a PDP main body 310, a control unit 320 that displays a screen on the PDP main body 310, a flexible cable 330 that connects the PDP main body 310 and the control unit 320, and the like.
  • the PDP main body 310 is formed of a pair of substrates (not shown) that are arranged to face each other through a discharge space in which, for example, a He—Xe (helium-xenon) or Ne—Xe (neon-xenon) inert gas is sealed.
  • the PDP main body 310 has a display surface 311 having a display area for screen display on one surface side.
  • the display surface 311 of the PDP main body 310 is coated with a main body antireflection layer 312 as shown in FIGS.
  • a main body antireflection layer 312 For the main body antireflection layer 312, various methods such as an AR (Anti-Reflection) process and an AG (Anti-Glare) process can be applied.
  • an electromagnetic wave shielding layer or antifouling layer that is a metal layer that shields electromagnetic waves in a state of sufficiently transmitting visible light, a color layer for blackening, and the like are provided. May be.
  • the control unit 320 includes a drive circuit that controls image display (not shown), a power supply circuit that supplies power, and the like.
  • the optical filter 400 has a thin plate-like translucent substrate 410.
  • this translucent base material 410 for example, a synthetic resin plate such as a glass substrate or an acrylic plate is used.
  • a screen is formed in a frame shape along the periphery.
  • a frame layer 420 is provided. In the state assembled as the display device 100 as shown in FIG. 1, the screen frame layer 420 is provided at least in the peripheral portion from the position corresponding to the peripheral portion of the display device main body 300 to the peripheral edge of the translucent substrate 410. .
  • the screen frame layer 420 contains, for example, a black pigment and has a light shielding property. That is, the back side cannot be seen.
  • the screen frame layer 420 is formed so that the color difference between the reflected color of the optical filter 400 at the position of the screen frame layer 420 and the reflected color in the display area of the display surface 311 of the PDP main body 310 is 40 or less.
  • the color difference is the SCE reflection color of the display surface 311 of the PDP main body 310 measured by the SCE (Specular Component Exclude) measurement method based on the condition C of JIS-Z-8722, and the optical filter 400.
  • SCE Standard Component Exclude
  • This is the difference from the SCE reflection color measured in the same manner from the outer surface side which is the side visually recognized by the user at the position of the screen frame layer 420.
  • the screen frame layer 420 is formed in the SCE reflection color in which the color difference is 40 or less.
  • the screen frame layer 420 is formed with a so-called gradation so that the light shielding performance decreases as it becomes closer to the inner peripheral edge, that is, the screen frame layer 420 shown in FIG. ing.
  • the display surface 311 of the display device main body 300 can be seen along the inner peripheral side of the screen frame layer 420 through the screen frame layer 420.
  • the inner peripheral edge side is provided with a reduced amount of black pigment, the inner peripheral edge side is gradually made thinner, Any method can be applied, such as forming the edge side into a dot shape and forming the dot diameter to be gradually reduced.
  • the first antireflection layer 430 as an inner antireflection layer is formed on one surface side of the translucent substrate 410.
  • the first antireflection layer 430 is illustrated as being laminated on the screen frame layer 420 from the viewpoint of manufacturability.
  • the first antireflection layer 430 is arranged in parallel on the inner peripheral side of the screen frame layer 420. You may form in the state of a substantially identical layer.
  • a second antireflection layer 440 as an outer antireflection layer is formed on the other surface side of the translucent substrate 410.
  • the first antireflection layer 430 and the second antireflection layer 440 may have the same characteristics as the main body antireflection layer 312 or different characteristics.
  • an electromagnetic wave shielding layer or the like may be provided on the translucent substrate 410.
  • the display device main body 300 is assembled to the middle case, and the display surface 311 faces the side where the screen frame layer 420, which is one surface side of the optical filter 400, is provided with a predetermined gap therebetween. Assembled. Then, the display device main body 300 is accommodated in the housing 200 together with the middle case, and the middle case is assembled to the housing 200. In this state, the opening of the housing 200 is closed by the optical filter 400, and the opening edge of the housing 200 is in contact with the peripheral edge on the one surface side of the optical filter 400. That is, the optical filter 400 and the housing 200 are assembled in a state where the opening edge of the housing 200 is located at the position where the screen frame layer 420 of the optical filter 400 is provided.
  • the second antireflection layer 440 of the optical filter 400 causes reflection on the other surface side of the translucent substrate 410 on which the second antireflection layer 440 is provided. It is suppressed. Further, external light transmitted through the second antireflection layer 440 and the translucent substrate 410 is suppressed from being reflected on one surface side of the translucent substrate 410 by the first antireflection layer 430. Further, the external light transmitted through the optical filter 400 is prevented from being reflected on the display surface 311 of the PDP main body 310 by the main body antireflection layer 312.
  • the second antireflection layer 440 By preventing the reflection of external light by the second antireflection layer 440, the first antireflection layer 430, and the main body antireflection layer 312, reflection is prevented.
  • a description will be given of a state in which a fluorescent lamp is reflected as external light over the position of the screen frame layer 420 of the optical filter 400 and the position of the display area inside the user.
  • the external light reflected at the position of the display region due to the characteristics of the first antireflection layer 430 is, for example, the first reflection whose reflection color is purple.
  • the prevention layer 430 it may be visually recognized in purple.
  • both the external light reflected at the position of the screen frame layer 420 and the external light reflected at the position of the display area are similarly, for example, the second antireflection layer 430 whose reflection color is purple.
  • the color is used, it is visually recognized in a purple color system, preventing the inconvenience that the color eyes are different at the boundary positions, and providing a sense of unity.
  • the light of the image data displayed on the screen on the display surface 311 passes through the main body antireflection layer 312 and the optical filter 400 and is visually recognized by the user.
  • the first antireflection layer 430 prevents the light of the video data from being transmitted through the main body antireflection layer 312 and the first antireflection layer 430 and reflected on one surface side of the translucent substrate 410.
  • the reflection of the reflected light that is reflected and enters the display surface again is suppressed by the main body antireflection layer 312.
  • the main body antireflection layer 312 and the first antireflection layer 430 prevent the generation of double images of video data.
  • the screen frame layer 420 is formed so that the inner peripheral edge side is gradually light-transmitting from the outer peripheral edge side. For this reason, since the display surface 311 of the PDP main body 310 is seen through the inner peripheral edge of the screen frame layer 420 toward the inner peripheral edge, the PDP main body 310 is in the same state as black display when the power is turned off. The boundary between the display area of the display surface 311 and the screen frame layer 420 of the optical filter 400 becomes difficult to see, and the boundary portion between the screen and the screen frame becomes unclear, thereby improving the sense of unity.
  • the main body antireflection layer 312 is provided on the display surface 311 of the display device main body 300, and the first antireflection layer 430 and the second antireflection layer 312 are provided on both surfaces of the optical filter 400 disposed to face the display surface 311 with a predetermined gap.
  • the antireflection layer 440 is provided, and the peripheral area corresponding to the outer peripheral edge of the display device body 300 is provided between the translucent base material 410 and the first antireflection layer 430 on one surface side which is the display surface 311 side.
  • a screen frame layer 420 is provided.
  • the screen frame layer 420 is formed such that the color difference between the reflected color of the optical filter 400 at the position of the screen frame layer 420 and the reflected color on the display surface 311 of the PDP main body 310 is 40 or less. That is, the color of the screen frame layer 420 is the same as that of the display surface 311. Thereby, the color difference between the screen frame layer 420 and the display surface 311 is not recognized, the boundary between the screen and the screen frame is not recognized, and a more visually integrated feeling can be provided.
  • the first antireflection layer 430 is provided so as to be laminated on the surface of the screen frame layer 420. Therefore, for example, the first antireflection layer 430 may be printed and formed without being provided in parallel with the screen frame layer 420, and can be formed by a simple method such as coating, and can provide a sense of unity. The productivity of can be improved.
  • the screen frame layer 420 is formed so that the inner peripheral edge side is gradually light-transmitting from the outer peripheral edge side. For this reason, on the inner peripheral side of the screen frame layer 420, the display surface 311 of the PDP main body 310 becomes transparent as it goes to the inner peripheral side, so that the boundary between the screen and the screen frame becomes less clear, and more A sense of unity can be improved.
  • FIG. 3 is a cross-sectional view illustrating a schematic configuration of the display device main body and the optical filter in the second embodiment.
  • reference numeral 500 denotes an optical filter.
  • This optical filter 500 is formed by laminating a protective color layer 510 on a screen frame layer 420 formed so as to increase translucency according to the inner peripheral edge side in the first embodiment. is there.
  • the protective color layer 510 is formed by appropriately containing a pigment in a state that is the same as or similar to the color of the display area of the display surface 311 of the PDP main body 310 in the power OFF state, which is the same state of black display.
  • the protective color layer 510 may be formed by appropriately blending and containing a pigment having a color that is the same as or similar to the color of the display area of the PDP main body 310, as in the screen frame layer 420, for example. Note that a part of the protective color layer 510 may be extended from the inner peripheral edge of the screen frame layer 420 to the inner edge side.
  • the screen frame layer 420 is improved in translucency as it goes to the inner periphery side, so that the protective color layer 510 that is laminated can be seen through as it goes to the inner periphery side of the screen frame layer 420 It becomes.
  • the position of the protective color layer 510 and the position of the display surface 311 of the PDP main body 310 are the same or approximate, the position of the protective color layer 510 and the position of the display surface 311 of the PDP main body 310 are However, although the distance from the user is different, the boundary becomes more ambiguous, and the color of the display surface 311 (dark gray close to black) gradually approaches from the black of the outer screen frame layer 420, thereby making the screen more And a visual sense of unity with the screen frame.
  • a protective color layer 510 having a color that is the same as or similar to the color of the display area of the PDP main body 310 in the power-off state is laminated. ing. Therefore, by gradually approaching the color of the display surface 311 from the outside, it is possible to provide a more visually integrated sense of the screen and the screen frame.
  • FIG. 4 is a cross-sectional view showing a schematic configuration of the display device body and the optical filter in the third embodiment.
  • 600 is an optical filter, and this optical filter 600 has a light transmission suppressing function in the configuration shown in FIG. 2 in which the screen frame layer 420 is formed in a state in which the translucency increases in accordance with the inner peripheral edge side in the first embodiment.
  • a layer 610 is provided.
  • the light transmission suppressing functional layer 610 is formed as a thin film between the translucent substrate 410 and the second antireflection layer 440.
  • the light transmission suppression function layer 610 contains a pigment
  • the light transmission suppression function layer 610 is formed in 20% or more and 80% or less of a total light transmittance, for example.
  • a total light transmittance for example.
  • the total light transmittance is lower than 20%, the video data displayed on the screen is dark and there is a possibility that a good display state cannot be provided.
  • the total light transmittance is higher than 80%, the boundary between the screen and the screen frame is easily visible, and it may be difficult to obtain a sense of unity between the screen and the screen frame. For this reason, it is preferable to set to 20% or more and 80% or less of the total light transmittance.
  • the light transmission suppressing function layer 610 has a near-infrared absorption function that suppresses transmission of infrared rays, a neon emission absorption function that suppresses transmission of neon (Ne) emission, a composite layer that combines these, and a light transmission function.
  • the suppression functional layer 610 may have a laminated structure in which an infrared absorption functional layer or a Ne cut functional layer is laminated.
  • the external light reflected at the position of the screen frame layer 420 of the optical filter 600 and the external light transmitted through the optical filter 600 and reflected by the display surface 311 are partially cut by the light transmission suppression function layer 610, respectively. Will be visually recognized by the user. For this reason, the boundary between the screen and the screen frame becomes ambiguous, and a sense of unity is obtained visually. Further, it is formed on the side opposite to the PDP main body 310 with respect to the translucent substrate 410, that is, on the outer side of the translucent substrate 410. For this reason, even when applied to the PDP main body 310 that emits a large amount of heat, deterioration due to heat can be prevented and deterioration of light transmission can be provided for a long period of time.
  • a light transmission suppression function that suppresses light transmission between the translucent substrate 410 and the second antireflection layer 440.
  • a layer 610 is provided. For this reason, the boundary between the screen and the screen frame is ambiguous, and a sense of unity is obtained visually. In particular, even when the amount of heat released is relatively large, such as the PDP main body 310, the influence of heat is reduced, so that the deterioration, etc. Can be prevented, and the function of suppressing light transmission can be provided stably for a long period of time.
  • the configuration in which the PDP main body 310 is provided as the display device main body 300 is illustrated.
  • a liquid crystal panel (LCD) liquid crystal panel
  • an EL (Electro Luminescence) panel an SED (Surface-conduction Electron-)
  • the present invention can be applied to various display devices such as an emitter display (CRT), a cathode-ray tube (CRT), and a rear projection display (RPJ).
  • the color difference between the screen frame layer 420 and the display surface 311 is preferably 40 or less, but is not limited thereto.
  • a character or a figure such as a logo or a character may be provided on the translucent substrate 410 side.
  • the screen frame layer 420 is formed so that the inner peripheral edge side gradually has translucency from the outer peripheral edge side. For this reason, since the display surface 311 of the PDP main body 310 is seen through the inner peripheral edge of the screen frame layer 420 toward the inner peripheral edge, the PDP main body 310 is in the same state as black display when the power is turned off. The boundary between the display area of the display surface 311 and the screen frame layer 420 of the optical filter 400 becomes difficult to see, and the boundary portion between the screen and the screen frame becomes unclear, thereby improving the sense of unity.
  • Example 1 was obtained by forming the screen frame layer in Example 1 by solid printing in which the inner peripheral edge side and the outer peripheral edge side had the same translucency.
  • Ten evaluators observed the sense of unity between the screen and the screen frame, and evaluated whether there was a sense of unity. The measurement results are shown in Table 1.
  • Example 1 when the screen frame layer was provided by solid printing (Reference Example 1), it was evaluated that 10 out of 10 people did not have a sense of unity. On the other hand, in Example 1 in which the screen frame layer was provided by gradation printing, 9 out of 10 people evaluated that there was a sense of unity. Furthermore, in Example 2 in which the antireflection layer was provided on both sides, it was evaluated that 10 out of 10 people had a sense of unity.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

Une couche antireflet de corps (312) est disposée sur une surface d'affichage (311) d'un corps de dispositif d'affichage (300). Une première couche antireflet (430) et une seconde couche antireflet (440) sont disposées sur les deux surfaces d'un filtre optique (400) disposé à l'opposé de la surface d'affichage avec un espace intercalaire prédéfini. Une couche de tour d'écran (420) arrêtant la lumière est disposée dans une zone périphérique correspondant au bord du corps de dispositif d'affichage (300), entre un substrat transmettant la lumière (410) et la première couche antireflet (430) présente sur le côté surface d'affichage du filtre optique (400). La couche de tour d'écran (420) est réalisée de façon à présenter une gradation telle que la propriété de transmission de la lumière augmente graduellement vers la périphérie intérieure. La limite entre la zone d'affichage et la couche de tour d'écran (420) devient difficile à visualiser, ce qui fait que toute la surface du filtre optique (400) peut être reconnue par les utilisateurs comme située dans le même plan, sans aucune limite, et qu'il est possible de donner aux utilisateurs une sensation visuelle d'unité.
PCT/JP2008/070677 2008-11-13 2008-11-13 Filtre optique et dispositif d'affichage Ceased WO2010055565A1 (fr)

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PCT/JP2008/070677 WO2010055565A1 (fr) 2008-11-13 2008-11-13 Filtre optique et dispositif d'affichage

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Application Number Priority Date Filing Date Title
PCT/JP2008/070677 WO2010055565A1 (fr) 2008-11-13 2008-11-13 Filtre optique et dispositif d'affichage

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WO2010055565A1 true WO2010055565A1 (fr) 2010-05-20

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Cited By (6)

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US20100259827A1 (en) * 2009-04-09 2010-10-14 Lee Moung-Youb Display apparatus
US20100259828A1 (en) * 2009-04-09 2010-10-14 Jong-Hyun Byeon Display apparatus
US8482691B2 (en) 2009-03-31 2013-07-09 Lg Electronics Inc. Display apparatus having a minimized non-display region
JP2016045230A (ja) * 2014-08-20 2016-04-04 大日本印刷株式会社 表示装置用前面板およびその製造方法
WO2020189355A1 (fr) * 2019-03-18 2020-09-24 株式会社きもと Film de revêtement dur fumé et dispositif d'affichage dans lequel ledit film est utilisé
EP4603754A1 (fr) * 2024-02-19 2025-08-20 DRU Verwarming B.V. Cheminée électrique et support de projection transparent pour une utilisation dans celle-ci

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Publication number Priority date Publication date Assignee Title
US8482691B2 (en) 2009-03-31 2013-07-09 Lg Electronics Inc. Display apparatus having a minimized non-display region
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US20100259828A1 (en) * 2009-04-09 2010-10-14 Jong-Hyun Byeon Display apparatus
US8284330B2 (en) * 2009-04-09 2012-10-09 Lg Electronics Inc. Display apparatus having light-shielding layer and variable light-transmittance pattern
US8807768B2 (en) * 2009-04-09 2014-08-19 Lg Electronics Inc. Display apparatus
JP2016045230A (ja) * 2014-08-20 2016-04-04 大日本印刷株式会社 表示装置用前面板およびその製造方法
WO2020189355A1 (fr) * 2019-03-18 2020-09-24 株式会社きもと Film de revêtement dur fumé et dispositif d'affichage dans lequel ledit film est utilisé
EP4603754A1 (fr) * 2024-02-19 2025-08-20 DRU Verwarming B.V. Cheminée électrique et support de projection transparent pour une utilisation dans celle-ci

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