WO2013035610A1 - 照明装置及びそれを用いた表示装置、テレビ受信装置 - Google Patents
照明装置及びそれを用いた表示装置、テレビ受信装置 Download PDFInfo
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- WO2013035610A1 WO2013035610A1 PCT/JP2012/071944 JP2012071944W WO2013035610A1 WO 2013035610 A1 WO2013035610 A1 WO 2013035610A1 JP 2012071944 W JP2012071944 W JP 2012071944W WO 2013035610 A1 WO2013035610 A1 WO 2013035610A1
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- Prior art keywords
- light
- light emitting
- guide plate
- emitting chip
- scattering pattern
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/66—Transforming electric information into light information
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
- G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
Definitions
- the present invention relates to an illumination device including a light guide plate, a display device using the illumination device, and a television receiver.
- Patent Document 1 A conventional lighting device is disclosed in Patent Document 1.
- This illuminating device constitutes a backlight of the display device, and a light guide plate and a light source are held in the chassis.
- the light source is composed of a plurality of LEDs, and is arranged in one direction on the substrate.
- the light guide plate is formed in a thin plate shape having a rectangular shape in plan view, and an incident surface on one side circumferential surface faces the light source.
- An illumination light exit surface is formed on the front surface of the light guide plate.
- a reflection sheet is disposed in close contact with the side surface of the light guide plate, avoiding the light source.
- the light emitted from the light source enters the light guide plate from the incident surface and guides the light guide plate.
- Light that is guided through the light guide plate and incident on the exit surface at an incident angle smaller than the critical angle is emitted from the exit surface as illumination light. Further, the light that has reached the side peripheral surface of the light guide plate is reflected by the reflection sheet, guided again through the light guide plate, and emitted from the exit surface.
- Patent Document 2 discloses an illumination device in which a scattering pattern is provided on the back surface of a light guide plate.
- the scattering pattern is formed in a dot shape, and is formed in a dispersed manner on the back surface of the light guide plate.
- the light guide of the light guide plate is scattered and reflected in the direction of the exit surface by the scattering pattern on the back surface.
- FIG. 8 is a plan view showing the vicinity of the positioning portion of the light guide plate.
- the positioning portion 14g protrudes from, for example, two orthogonal surfaces of the side peripheral surface of the light guide plate 14, and fits the inner surface of a chassis (not shown) to position the light guide plate 14.
- the dot-like scattering pattern 18 provided on the back surface of the light guide plate 14 extends to the outer peripheral side of the illumination light emission region W, and emits uniform illumination light from the emission region W.
- Japanese Patent Laid-Open No. 2008-166200 pages 4-5, FIG. 4
- Japanese Unexamined Patent Publication No. 2011-142086 pages 5-16, FIG. 11
- the positioning portion 14g is provided on the light guide plate 14
- the positioning portion 14g is not present as shown by the arrow A1
- a part of the light totally reflected on the side peripheral surface of the light guide plate 14 is indicated by the arrow A2.
- the light is emitted through the positioning portion 14g. For this reason, there is a problem in that the luminance of the illumination light decreases in the emission region W in the vicinity of the positioning portion 14g, and uneven luminance occurs.
- An object of the present invention is to provide an illumination device that can make the luminance distribution of illumination light uniform, a display device using the illumination device, and a television receiver.
- an illumination device of the present invention guides light incident from a light source arranged in parallel or extending in one direction and a light incident surface on a side surface facing the light source to emit light from the front surface.
- a light guide plate that emits planar illumination light from a surface; a chassis that covers and holds the light source and the periphery of the light guide plate; a scattering pattern that is formed on the back surface of the light guide plate; and a side peripheral surface of the light guide plate And a positioning portion for positioning the light guide plate by fitting with the inner surface of the chassis, and the scattering pattern is extended on the positioning portion.
- the light guide plate is positioned by fitting the positioning portion of the light guide plate to the inner surface of the chassis.
- the light emitted from the light source enters the light guide plate from the incident surface and is guided, and is scattered and reflected by the scattering pattern provided on the back surface, and planar illumination light is emitted from the exit region of the front exit surface.
- the light guide that has reached the positioning portion is scattered and reflected by the scattering pattern provided in the positioning portion, and is guided in the direction of the emission region.
- the present invention is characterized in that, in the illumination device configured as described above, the density of the scattering pattern on the positioning portion is larger than the density of the scattering pattern in the illumination light exit region. According to this configuration, the light scattered and reflected in the direction of the emission region at the positioning portion increases.
- the positioning portion is formed on the opposite surface of the incident surface and both surfaces adjacent to the incident surface, and the positioning portion on the surface adjacent to the incident surface is formed by the opposing surface. Is also arranged at a position close to the incident surface.
- the present invention is characterized in that the scattering pattern is formed by printing in the illumination device having the above configuration.
- the present invention is characterized in that the scattering pattern is formed of white ink in the illumination device having the above-described configuration.
- the light source is a white light emitting diode.
- the white light emitting diode includes a light emitting chip that emits blue light, and a light emitting layer that is provided around the light emitting chip and has a light emission peak in a yellow region. It is characterized by. According to this configuration, the blue light emitted from the light emitting chip and the yellow light emitted from the light emitting layer are mixed to emit white light.
- the white light emitting diode includes a light emitting chip that emits blue light, and a light emitting body that is provided around the light emitting chip and has emission peaks in a green region and a red region, respectively. And a layer. According to this configuration, the blue light emitted from the light emitting chip and the green light and red light emitted from the light emitting layer are mixed to emit white light.
- the white light emitting diode includes a first light emitting chip that emits blue light, and a light emitting layer that is provided around the first light emitting chip and has a light emission peak in a green region. And a second light emitting chip that emits red light. According to this configuration, the blue light emitted from the first light emitting chip, the green light emitted from the light emitting layer, and the red light emitted from the second light emitting chip are mixed to emit white light.
- the white light emitting diode includes a first light emitting chip that emits blue light, a second light emitting chip that emits red light, and a third light emitting chip that emits green light. It is characterized by that. According to this structure, the blue light emitted from the first light emitting chip, the green light emitted from the second light emitting chip, and the red light emitted from the third light emitting chip are mixed to emit white light.
- the white light emitting diode is provided in a light emitting chip that emits ultraviolet light, and a blue region, a green region, and a red region provided around the light emitting chip, respectively. And a phosphor layer having an emission peak. According to this configuration, the blue light, the green light, and the red light due to the light emitted from the light emitter layer are mixed to emit white light.
- the display device of the present invention is characterized by including the illumination device having the above-described configuration and a display panel disposed to face the emission surface.
- the present invention is also characterized in that, in the display device having the above configuration, the display panel is a liquid crystal panel using liquid crystal.
- the television receiver of the present invention is characterized by including the display device having the above-described configuration.
- the scattering pattern is extended to the positioning portion protruding from the side peripheral surface of the light guide plate, a part of the light guide reaching the positioning portion is scattered and reflected in the direction of the emission region. As a result, it is possible to reduce the light emitted from the positioning portion to the side, reduce the luminance drop near the positioning portion, and make the luminance distribution of the illumination light uniform.
- the disassembled perspective view which shows the display apparatus provided with the illuminating device of 1st Embodiment of this invention.
- Side surface sectional drawing which shows the display apparatus provided with the illuminating device of 1st Embodiment of this invention.
- the top view which shows the illuminating device of 1st Embodiment of this invention.
- the top view which shows the positioning part of the light-guide plate of the illuminating device of 1st Embodiment of this invention.
- the top view which shows the positioning part of the light-guide plate of the illuminating device of 2nd Embodiment of this invention.
- the top view which shows the positioning part of the light-guide plate of the illuminating device of 3rd Embodiment of this invention.
- FIG. 1 is an exploded perspective view showing a display device including the illumination device according to the first embodiment.
- the display device 1 is mounted on a television receiver or the like, and an illumination device 10 that constitutes a backlight is disposed on the back surface of the liquid crystal panel 2.
- the liquid crystal panel 2 is held by the lighting device 10 by a bezel 3 that covers the periphery of the front display surface 2a.
- the illuminating device 10 is configured in an edge light type in which a light source 15 (see FIG. 2) is disposed so as to face an incident surface 14a (see FIG. 2) on one side circumferential surface of a light guide plate 14 having a rectangular shape in plan view.
- the lighting device 10 is covered with a chassis 11 including a back portion 12 on the back side and a front portion 13 on the front side.
- An optical sheet 16 such as a diffusion sheet is disposed on the light exit surface 14 b (see FIG. 2) on the front surface of the light guide plate 14.
- FIG. 2 is a side sectional view of the display device 1.
- the front portion 13 of the chassis 11 is formed of a resin such as polycarbonate and covers the peripheral portion of the light exit surface 14 b of the light guide plate 14.
- the back surface of the liquid crystal panel 2 is supported by the front portion 13, and the liquid crystal panel 2 is sandwiched by the front portion 13 and the bezel 3.
- the back portion 12 of the chassis 11 is formed of a metal such as a steel plate or aluminum, or a resin such as polycarbonate or fiber reinforced plastic (CFRP). Forming the back portion 12 with resin is more desirable because it can reduce the weight.
- a plurality of ribs 13 b that protrude in the direction parallel to the incident surface 14 a of the light guide plate 14 and support the back surface 14 c of the light guide plate 14 are provided on the back portion 12. Thereby, the rib 13b is in line contact with the light guide plate.
- the rib 13b may extend in a direction perpendicular to the incident surface 14a, and the rib 13b may be formed so as to make point contact with the light guide plate 14.
- the light guide plate 14 is a thin plate having a rectangular shape in plan view formed of a transparent member such as acrylic, and guides light incident from the incident surface 14a.
- a scattering pattern 18 that scatters and reflects light is provided on the back surface 14 c of the light guide plate 14.
- the light source 15 is composed of a white light emitting diode mounted on the substrate 15a, and a plurality of the light sources 15 are arranged in one direction along the incident surface 14a on one side peripheral surface of the light guide plate 14.
- the light source 15 may be formed in a linear shape and extended in one direction along the incident surface 14a.
- the white light emitting diode forming the light source 15 includes, for example, a light emitting chip that emits blue light and a light emitting layer that is provided around the light emitting chip and has a light emission peak in a yellow region. As a result, the blue light emitted from the light emitting chip and the yellow light emitted from the light emitting layer are mixed to emit white light.
- the light emitting layer can be formed by containing a phosphor that converts the wavelength of blue light of the light emitting chip into yellow light.
- the white light emitting diode may have a light emitting chip that emits blue light, and a light emitting layer provided around the light emitting chip and having a light emission peak in each of a green region and a red region.
- the light emitting layer can be formed by containing a phosphor that converts the wavelength of blue light of the light emitting chip into green light and red light, respectively.
- the white light emitting diode has a first light emitting chip that emits blue light, a light emitting layer that is provided around the first light emitting chip and has a light emission peak in a green region, and a second light emitting chip that emits red light. May be. Thereby, the blue light emitted from the first light emitting chip, the green light emitted from the light emitting layer, and the red light emitted from the second light emitting chip are mixed to emit white light.
- the light emitting layer can be formed by containing a phosphor that converts the wavelength of blue light of the first light emitting chip into green light.
- the white light emitting diode may have a first light emitting chip that emits blue light, a second light emitting chip that emits red light, and a third light emitting chip that emits green light. Accordingly, the blue light emitted from the first light emitting chip, the green light emitted from the second light emitting chip, and the red light emitted from the third light emitting chip are mixed to emit white light.
- the white light emitting diode may include a light emitting chip that emits ultraviolet light, and a light emitting layer provided around the light emitting chip and having emission peaks in a blue region, a green region, and a red region, respectively. Good. Thereby, the blue light, the green light, and the red light due to the light emission of the light emitting layer are mixed to emit white light.
- the light emitting layer can be formed by containing a phosphor that converts the wavelength of ultraviolet light of the light emitting chip into blue light, green light, and red light.
- FIG. 3 shows a plan view of the lighting device 10.
- the light guide plate 14 disposed inside the front portion 13 of the chassis 11 has a facing surface 14e facing the incident surface 14a and positioning portions 14g protruding on both side surfaces 14d adjacent to the incident surface 14a.
- the positioning portions 14g of the both side surfaces 14d are disposed at a position closer to the incident surface 14a than the facing surface 14e.
- a plurality of ribs 13a that fit into the positioning portion 14g are projected from the inner peripheral surface of the front portion 13.
- the positioning portion 14g is fitted to the rib 13a, and the light guide plate 14 is positioned and held in the parallel direction and the vertical direction with respect to the incident surface 14a.
- a recess that fits into the positioning portion 14g may be provided on the inner peripheral surface of the front portion 13.
- the illumination light output region W is formed inside the outer periphery.
- the liquid crystal panel 2 (see FIG. 1) is illuminated by the illumination light emitted from the emission region W.
- FIG. 4 is a plan view showing details of the positioning portion 14g of the light guide plate 14.
- FIG. The scattering pattern 18 formed on the back surface 14c (see FIG. 2) of the light guide plate 14 is formed, for example, in the form of white dots that are circular in plan view, and is distributed in a large number of triangular lattices.
- the scattering pattern 18 may be arranged in a square lattice pattern or randomly.
- the scattering pattern 18 can be formed, for example, by printing a paste-like white ink containing a metal oxide on the back surface 14c of the light guide plate 14 by screen printing, ink jet printing, or the like.
- the scattering pattern 18 extends not only to the emission region W but also to the outer peripheral side of the emission region W and extends on the positioning portion 14g.
- the scattering pattern 18b on the positioning part 14g is arranged in a trapezoidal shape in plan view. At this time, the scattering pattern 18b on the positioning portion 14g is formed to have a larger dot diameter than the scattering pattern 18a on the emission region W. Thereby, the density of the scattering pattern 18b on the positioning part 14g is larger than the density of the scattering pattern 18a on the emission region W.
- the light emitted from the light source 15 enters the light guide plate 14 from the incident surface 14 a and guides the light guide plate 14.
- the light that has reached the back surface 14 c of the light guide plate 14 is scattered and reflected by the scattering pattern 18.
- light incident on the emission surface 14b at an incident angle smaller than the critical angle is generated, and planar illumination light is emitted from the emission region W of the emission surface 14b.
- the liquid crystal panel 2 is illuminated by the illumination light emitted from the emission region W, and an image is displayed on the display surface 2a.
- the scattering pattern 18 is provided on the outer peripheral side with respect to the emission region W, uniform illumination light can be emitted to the periphery of the emission region W. Furthermore, since the scattering pattern 18b is provided on the positioning portion 14g, the light that has guided the light guide plate 14 and reached the positioning portion 14g is scattered and reflected by the scattering pattern 18b. Thereby, a part of the reflected light of the scattering pattern 18b is guided in the direction of the emission region W, and the light emitted to the side from the positioning portion 14g is reduced.
- the scattering pattern 18 is extended to the positioning portion 14g protruding from the side peripheral surface of the light guide plate 14, a part of the light guide that reaches the positioning portion 14g is scattered and reflected in the direction of the emission region W. To do.
- the light emitted from the positioning portion 14g to the side can be reduced, the luminance drop in the vicinity of the positioning portion 14g can be reduced, and the luminance distribution of the illumination light can be made uniform.
- the density of the scattering pattern 18b on the positioning part 14g is larger than the density of the scattering pattern 18a on the emission area W, the light scattered and reflected in the direction of the emission area W by the positioning part 14g can be increased. Therefore, the luminance distribution of the illumination light can be made more uniform.
- the positioning portions 14g of the both side surfaces 14d adjacent to the incident surface 14a are arranged at positions closer to the incident surface 14a than the facing surface 14e. Thereby, the light-guide plate 14 can be supported more stably. At this time, the light emitted from the light source 15 at both ends of the incident surface 14a is likely to reach the positioning portions 14g on the both side surfaces 14d arranged at close positions. For this reason, by providing the scattering pattern 18 in the positioning part 14g, the effect of reducing the light emitted from the positioning part 14g to the side is great.
- the scattering pattern 18 can be easily formed by printing with white ink.
- the illumination device 10 constituting the backlight can be easily realized.
- FIG. 5 is a plan view showing the positioning portion 14g of the light guide plate 14 of the illumination device 10 of the second embodiment.
- the same parts as those in the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals.
- the arrangement of the scattering pattern 18b on the positioning portion 14g is different from that in the first embodiment.
- Other parts are the same as those in the first embodiment.
- the scattering pattern 18 extends on the positioning part 14g, and the scattering pattern 18b on the positioning part 14g is arranged in a rectangular shape in plan view. At this time, the scattering pattern 18b on the positioning portion 14g is formed to have a larger dot diameter than the scattering pattern 18a on the emission region W. Thereby, the effect similar to 1st Embodiment can be acquired.
- FIG. 6 is a plan view showing the positioning portion 14g of the light guide plate 14 of the illumination device 10 of the third embodiment.
- the same parts as those in the first embodiment shown in FIGS. 1 to 4 are denoted by the same reference numerals.
- the arrangement of the scattering pattern 18b on the positioning portion 14g is different from that in the first embodiment.
- Other parts are the same as those in the first embodiment.
- the scattering pattern 18 extends on the positioning portion 14g, and the scattering pattern 18b on the positioning portion 14g is arranged in a triangular shape in plan view. At this time, the scattering pattern 18b on the positioning portion 14g is formed to have a larger dot diameter than the scattering pattern 18a on the emission region W. Thereby, the effect similar to 1st Embodiment can be acquired.
- the illuminating device 10 is formed as one-side incident light in which the light source 15 is arranged along only one side of the light guide plate 14, but the light source 15 is arranged along two opposite sides. You may comprise in 2 side incident light.
- a display device such as a television receiver, a display, and a mobile phone using an illumination device having a light guide plate.
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
2 表示パネル
3 ベゼル
10 照明装置
11 シャーシ
12 バック部
13 フロント部
13a リブ
14 導光板
14a 入射面
14b 出射面
14c 背面
14g 位置決め部
15 光源
16 光学シート
18、18a、18b 散乱パターン
Claims (14)
- 一方向に並設または延設される光源と、前記光源に対向する側周面の入射面から入射した光を導光して前面の出射面から面状の照明光を出射する導光板と、前記光源及び前記導光板の周囲を覆って保持するシャーシと、前記導光板の背面に形成される散乱パターンと、前記導光板の側周面に突設して前記シャーシの内面との嵌合により前記導光板を位置決めする位置決め部とを備え、前記位置決め部上に前記散乱パターンを延設したことを特徴とする照明装置。
- 前記位置決め部上の前記散乱パターンの密度が照明光の出射領域の前記散乱パターンの密度よりも大きいことを特徴とする請求項1に記載の照明装置。
- 前記位置決め部が前記入射面の対向面及び前記入射面に隣接する両面に形成され、前記入射面に隣接する面の前記位置決め部が前記対向面よりも前記入射面に近い位置に配置されることを特徴とする請求項1または請求項2に記載の照明装置。
- 前記散乱パターンが印刷により形成されていることを特徴とする請求項1または請求項2に記載の照明装置。
- 前記散乱パターンが白色インクにより形成されていることを特徴とする請求項1または請求項2に記載の照明装置。
- 前記光源が白色発光ダイオードであることを特徴とする請求項1または請求項2に記載の照明装置。
- 前記白色発光ダイオードは、青色に発光する発光チップと、前記発光チップの周囲に設けられて黄色の領域に発光ピークを有する発光体層と、を含むことを特徴とする請求項6に記載の照明装置。
- 前記白色発光ダイオードは、青色に発光する発光チップと、前記発光チップの周囲に設けられて緑色の領域と赤色の領域とにそれぞれ発光ピークを有する発光体層と、を含むことを特徴とする請求項6に記載の照明装置。
- 前記白色発光ダイオードは、青色に発光する第1発光チップと、第1発光チップの周囲に設けられて緑色の領域に発光ピークを有する発光体層と、赤色に発光する第2発光チップと、を含むことを特徴とする請求項6に記載の照明装置。
- 前記白色発光ダイオードは、青色に発光する第1発光チップと、赤色に発光する第2発光チップと、緑色に発光する第3発光チップと、を含むことを特徴とする請求項6に記載の照明装置。
- 前記白色発光ダイオードは、紫外光を発光する発光チップと、前記発光チップの周囲に設けられて青色の領域と緑色の領域と赤色の領域とにそれぞれ発光ピークを有する発光体層と、を含むことを特徴とする請求項6に記載の照明装置。
- 請求項1または請求項2に記載の照明装置と、前記出射面に対向配置される表示パネルとを備えたことを特徴とする表示装置。
- 前記表示パネルが液晶を用いた液晶パネルであることを特徴とする請求項12に記載の表示装置。
- 請求項12に記載の表示装置を備えることを特徴とするテレビ受信装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US14/240,469 US20140176816A1 (en) | 2011-09-05 | 2012-08-30 | Illumination device, display device using same, and television receiving device |
CN201290000763.0U CN203731113U (zh) | 2011-09-05 | 2012-08-30 | 照明装置和使用它的显示装置、电视接收装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2011193203 | 2011-09-05 | ||
JP2011-193203 | 2011-09-05 |
Publications (1)
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WO2013035610A1 true WO2013035610A1 (ja) | 2013-03-14 |
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ID=47832057
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2012/071944 WO2013035610A1 (ja) | 2011-09-05 | 2012-08-30 | 照明装置及びそれを用いた表示装置、テレビ受信装置 |
Country Status (3)
Country | Link |
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US (1) | US20140176816A1 (ja) |
CN (1) | CN203731113U (ja) |
WO (1) | WO2013035610A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104049297A (zh) * | 2014-05-05 | 2014-09-17 | 友达光电股份有限公司 | 背光模块与显示装置 |
WO2015089929A1 (zh) * | 2013-12-20 | 2015-06-25 | 深圳市华星光电技术有限公司 | 导光板、导光板制造方法及背光模块 |
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- 2012-08-30 WO PCT/JP2012/071944 patent/WO2013035610A1/ja active Application Filing
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WO2015089929A1 (zh) * | 2013-12-20 | 2015-06-25 | 深圳市华星光电技术有限公司 | 导光板、导光板制造方法及背光模块 |
US9715059B2 (en) | 2013-12-20 | 2017-07-25 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Light guide plate, method for manufacturing same and backlight module |
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US9575238B2 (en) | 2014-05-05 | 2017-02-21 | Au Optronics Corporation | Back light module |
Also Published As
Publication number | Publication date |
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CN203731113U (zh) | 2014-07-23 |
US20140176816A1 (en) | 2014-06-26 |
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