WO2012081504A1 - Dispositif d'éclairage et procédé d'affichage - Google Patents

Dispositif d'éclairage et procédé d'affichage Download PDF

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Publication number
WO2012081504A1
WO2012081504A1 PCT/JP2011/078492 JP2011078492W WO2012081504A1 WO 2012081504 A1 WO2012081504 A1 WO 2012081504A1 JP 2011078492 W JP2011078492 W JP 2011078492W WO 2012081504 A1 WO2012081504 A1 WO 2012081504A1
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WO
WIPO (PCT)
Prior art keywords
guide plate
light guide
plate block
light
emitting surface
Prior art date
Application number
PCT/JP2011/078492
Other languages
English (en)
Japanese (ja)
Inventor
亮 荒木
良信 平山
滋規 田中
圭 及部
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2012081504A1 publication Critical patent/WO2012081504A1/fr

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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
    • G02B6/0045—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 by shaping at least a portion 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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays

Definitions

  • the present invention relates to a lighting device and a display device, and more particularly to a lighting device suitably used for a display device and a display device equipped with the same.
  • a plasma display or a liquid crystal display is mainly used as a display in the information display. There are various technical problems in curving these displays.
  • the curved surface of the backlight as shown in FIG. 11, for example, in the backlight 110 in which the LED 111 is provided on the end surface of the light guide plate 112, when the light guide plate 112 is simply bent and curved, Compared with the light guide plate, the in-plane uniformity is lowered and the optical characteristics are changed. As a result, there arises a problem that the display quality of the liquid crystal display is deteriorated.
  • Patent Document 1 by providing regions having different refractive indexes in the curved portions of the unevenness of the light guide plate, the light from the light source travels along the path refracted along the curved portions of the light guide plate, and in regions away from the light source.
  • sufficient luminance as a surface light source can be secured.
  • the liquid crystal display is increased in size, the light guide plate and the backlight are also required to be increased in size.
  • integral molding becomes difficult.
  • resins of different materials are integrated, generally, each resin has a different coefficient of thermal expansion. Therefore, when the backlight is placed at a high temperature or a low temperature, problems such as warping of the light guide plate are likely to occur.
  • an object of the present invention is to provide an illuminating device that has a high degree of uniformity on the light emitting surface and has a substantially curved light emitting surface.
  • an illumination device is provided on a plurality of light guide plate blocks that emit light from a light source from a planar light emitting surface, and on each end face of the plurality of light guide plate blocks.
  • the first light guide plate block and the second light guide plate block are adjacent to each other, and the light emitting surface of the second light guide plate block is The light guide plate block is inclined with respect to the light emitting surface.
  • the light guide plate in the lighting device is formed by a plurality of light guide plate blocks, and the light emitting surface of each light guide plate block is inclined with respect to the light emitting surface of the adjacent light guide plate block. Therefore, the light emission surface in the whole light guide plate comprised by the some light guide plate block forms the curved surface substantially.
  • Each light guide plate block is provided with a light source on its end surface, and each light guide plate block emits incident light from the light source from a planar light emitting surface. A high degree of uniformity is achieved between the blocks. Therefore, according to this illuminating device, it is possible to emit emitted light with a high degree of uniformity from a light emitting surface that substantially forms a curved surface as a whole.
  • the lighting device includes a plurality of light guide plate blocks each having a light source, and the light emitting surfaces of the light guide plate blocks are inclined with respect to the light emitting surfaces of adjacent light guide plate blocks.
  • FIG. 1 is a transparent perspective view showing the overall configuration of a backlight which is an embodiment of a lighting device according to the present invention.
  • the backlight 10 is configured such that a plurality of light guide plate blocks 12 are arranged in one direction and adjacent light guide plate blocks 12 are in contact with each other.
  • the light guide plate blocks 12 are arranged so that no gap is formed between the light emitting surface 13 of a certain light guide plate block 12 and the light emitting surface 13 of an adjacent light guide plate block 12.
  • one light emitting surface is formed as the entire backlight 10.
  • At least one LED 11 as a light source is provided on the end face of each light guide plate block 12.
  • the end surface of the light guide plate block 12 refers to another light guide plate block when a plurality of light guide plate blocks 12 are arranged in one direction among the side surfaces when the light emitting surface 13 of the light guide plate block 12 is an upper surface.
  • 12 refers to a surface that is not adjacent. Further, when simply referred to as “side surface”, it means a surface other than the end surface among the side surfaces when the light emitting surface 13 of the light guide plate block 12 is the upper surface.
  • each light guide plate block 12 is provided such that its light emitting surface 13 is inclined with respect to the light emitting surface 13 in the adjacent light guide plate block 12.
  • the light emitting surface as the entire backlight 10 is substantially curved.
  • the light emitting surface of the backlight 10 as a whole is convex. Thereby, it becomes a curved-surface backlight which radiate
  • the light guide plate block 12 has a flat shape similar to the light guide plate used in the conventional flat liquid crystal display. Therefore, the light emitting surface 13 itself of the light guide plate block 12 is a flat surface. Light from the light source is emitted from the light emitting surface 13.
  • the end face shape of the light guide plate block 12 in the present embodiment is an isosceles trapezoid whose upper base corresponding to the light emitting surface 13 is longer than the lower base, but is not limited thereto. Further, the shape of the light emitting surface 13 of the light guide plate block 12 is a rectangle whose side contacting the adjacent light guide plate block 12 is longer than the side on the end surface side where the LED 11 is provided, but is not limited thereto. Absent.
  • the light guide plate block 12 is provided with a dot pattern, a V-groove and a textured process so that incident light from the LEDs 11 spreads uniformly in the light guide plate block 12. Conventional materials, equipment and techniques can be used to manufacture the light guide plate block 12.
  • the LED 11 is provided on the end surface of the light guide plate block 12 which is located outside the backlight 10.
  • one LED 11 is provided in each light guide plate block 12, but the number of LEDs 11 provided in the light guide plate block 12 is not limited and may be two or more. Further, the LED 11 is not limited to the configuration in which the LED 11 is provided on one end surface of the light guide plate block 12 and is allowed to enter one side, but the LED 11 may be provided on the opposite end surface to enter the light on both sides.
  • the LED 11 is not limited to a pseudo white LED, and a high color rendering LED, RGB-LED, or the like can be used, and is not particularly limited.
  • the light source is not limited to the LED, but may be a fluorescent tube or an EL.
  • the backlight 10 has the light guide plate blocks 12 arranged side by side so that the light emitting surface 13 of each light guide plate block 12 is inclined with respect to the light emitting surface 13 of the adjacent light guide plate block 12. It is the composition which is.
  • FIG. 3 is a view showing a cross section of a contact portion between adjacent light guide plate block (first light guide plate block) 12a and light guide plate block (second light guide plate block) 12b.
  • the light emitting surface 13b of the light guide plate block 12b is inclined by an angle ⁇ B with respect to the light emitting surface 13a of the light guide plate block 12a adjacent to the light guide plate block 12b.
  • the angle ⁇ B is an angle greater than 0 ° and 60 ° or less.
  • the angle ⁇ B may be appropriately determined according to the curved surface shape of the curved display device to which the backlight 10 is applied. The smaller the angle theta B, the light-emitting surface of the entire backlight 10 will draw a smooth convex curved surface.
  • the light emitting surface 13b emits the emitted light L1a emitted in the vertical direction from the light emitting surface 13a and the emitted light L1b emitted in the vertical direction from the light emitting surface 13b (the emitted light does not have an intersection). And so on) with respect to the light emitting surface 13a.
  • this inclination direction is defined as “the light emitting surface 13b is inclined in a direction away from the light emitting surface 13a”.
  • the side surface 14a of the light guide plate block 12a that is in contact with the light guide plate block 12b is the inner side when viewed from the light emitting surface 13a so that the light emitting surface 13b of the light guide plate block 12b can be inclined in a direction away from the light emitting surface 13a of the adjacent light guide plate block 12a. Further, it is inclined by an angle ⁇ A from the direction perpendicular to the light emitting surface 13a. Since the same light guide plate block 12 is used in the backlight 10, the side surface 14b in contact with the light guide plate block 12a in the light guide plate block 12b is also inward from the light emitting surface 13b and in the direction perpendicular to the light emitting surface 13b. From the angle ⁇ A.
  • the angle of inclination between the light emitting surfaces 13 can be changed by changing the inclination angle of the side surface of each light guide plate block 12. That is, by changing the inclination angle of the side surface of the light guide plate block 12, the curvature of the light emitting surface of the entire backlight 10 that is substantially curved can be changed.
  • each light guide plate block 12 can achieve a high degree of uniformity without changing from a conventional light guide plate.
  • the LEDs 11 are provided on the end surfaces of the respective light guide plate blocks 12, a high degree of uniformity is maintained between the light guide plate blocks 12. Thereby, the high degree of uniformity in the light emission surface as the backlight 10 formed of the light emission surface 13 of the some light-guide plate block 12 is realizable.
  • the light guide plate of the backlight 10 is composed of a plurality of light guide plate blocks 12, a defect occurs when defects such as black spots, cracks, chipping, and foreign matter adhere to a part of the light guide plate.
  • a defect occurs when defects such as black spots, cracks, chipping, and foreign matter adhere to a part of the light guide plate.
  • the light guide plate is divided into a plurality of light guide plate blocks 12, by sequentially lighting each light guide plate block 12, it can be suitably used as a scan backlight and an active backlight.
  • the light guide plate block 12 which is a backlight member can be produced by resin molding.
  • the light guide plate since the light guide plate is made into a plurality of blocks, it is necessary to increase the size of the display while effectively utilizing existing facilities without newly developing a large molding apparatus for manufacturing a large display. I can respond. In this way, since no new equipment investment is required, the light guide plate block can be produced in the existing equipment that has been depreciated, so that it can be provided at a low price. Furthermore, since existing facilities can be used, it is possible to avoid a shortage of the light guide plate due to an inadequate investment in new equipment for manufacturing a large light guide plate.
  • liquid crystal display device Next, a liquid crystal display device which is an embodiment of the display device according to the present invention will be described.
  • FIG. 2 is a cross-sectional view showing a schematic configuration of a liquid crystal display device on which the backlight 10 is mounted.
  • the liquid crystal display device 1 includes a curved liquid crystal panel 20 and a backlight 10.
  • the backlight 10 composed of the light guide plate block 12 and the LED 11 is provided with a reflection sheet 18 on the side opposite to the light emitting surface 13 and an optical sheet 19 on the light emitting surface side.
  • the liquid crystal panel 20 is not particularly limited as long as it is a liquid crystal panel that can be manufactured in a curved shape, and a TN type, an OCB type, an IPS type, a VA type, and the like can be applied, but is not limited thereto.
  • optical sheet 19 examples include a lens sheet and a diffusion sheet. Although only one optical sheet 19 is shown in FIG. 2, a plurality of optical sheets 19 may be overlapped as necessary.
  • the liquid crystal display device 1 is equipped with the backlight 10 described above, which is a backlight having a substantially curved light-emitting surface, and which achieves a high degree of uniformity of the emitted light L1. Therefore, the liquid crystal display device 1 is a curved liquid crystal display excellent in display quality.
  • FIGS. 4 and 5 Another embodiment of the backlight 10 will be described below with reference to FIGS. 4 and 5.
  • members having the same functions as those used in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • the side surface 14a on the light guide plate block 12b side in the light guide plate block 12a and the side surface 14b on the light guide plate block 12a side in the light guide plate block 12b are the entire surface.
  • the light guide plate blocks 12a and 12b are adjacent to each other.
  • the side surface 14a on the light guide plate block 12b side in the light guide plate block 12a and the side surface 14b on the light guide plate block 12a side in the light guide plate block 12b are side portions that are boundaries with the light emitting surface. It is the structure which is mutually separated except for.
  • FIG. 4 and 5 are diagrams showing a cross section of the backlight 10 according to the present embodiment.
  • the light guide plate block 12a and the light guide plate block 12b are adjacent to each other, the side surface 14a on the light guide plate block 12b side of the light guide plate block 12a, and the light guide plate block in the light guide plate block 12b.
  • the entire surface is not in contact with the side surface 14b on the 12a side.
  • the side 15a on the light guide plate block 12b side of the light emitting surface 13a of the light guide plate block 12a (intersection line between the light emitting surface 13a and the side surface 14a) and the side 15b on the light guide plate block 12a side of the light emitting surface 13b of the light guide plate block 12b. (A crossing line between the light emitting surface 13b and the side surface 14b) is in contact with each other. For this reason, the light emission surface without a gap is formed in the backlight 10 as a whole.
  • the arrow L ⁇ b> 1 is for indicating the side from which light is emitted in the backlight 10, and is not intended to emit only in this direction.
  • Each light guide plate block 12 is fixed to a backlight holder (not shown) that can be arranged so that the light emitting surface of the backlight 10 that is substantially curved as a whole has a specific curvature.
  • the backlight holder include a frame-shaped holder made of resin and a bezel-shaped holder made of aluminum or SUS.
  • the light emitting surface of the backlight 10 as a whole is a substantially curved surface. Can do.
  • the light guide plate blocks 12a in the backlight 10 of the present embodiment the inclination angle theta A side 14a with respect to the direction perpendicular to the light emission surface 13a of the light guide plate blocks 12a is 45 °.
  • ⁇ B ⁇ 2 ⁇ ⁇ A , and the inclination angle ⁇ B of the light emitting surface 13b with respect to the light emitting surface 13a can be designed to be smaller than 90 °.
  • the light emitting surface 13b is inclined in a direction away from the light emitting surface 13a. That is, the light emitting surface 13b is directed to the light emitting surface 13a so that the emitted light L1a emitted from the light emitting surface 13a in the vertical direction and the emitted light L1b emitted from the light emitting surface 13b in the vertical direction are emitted in directions away from each other. And inclined. Thereby, the curved-surface backlight in which the light emission surface as the whole backlight 10 turns into a convex-shaped curved surface was formed.
  • the backlight 10 in the present embodiment forms a curved backlight in which the light emitting surface of the backlight 10 as a whole is substantially a concave curved surface.
  • FIG. 6 is a cross-sectional view showing a schematic configuration of the liquid crystal display device 1 including the backlight 10 according to the present embodiment.
  • the liquid crystal display device 1 is a concave curved display including a concave curved liquid crystal panel 20.
  • the backlight 10 is formed by arranging the light guide plate blocks 12 so that the light emitting surface thereof has a substantially concave curved surface.
  • FIG. 7 is a diagram showing adjacent portions of adjacent light guide plate blocks 12a and 12b in the present embodiment.
  • the light emitting surface 13b of the light guide plate block 12b is inclined by an angle ⁇ B with respect to the light emitting surface 13a of the adjacent light guide plate block 12a.
  • the angle ⁇ B is an angle greater than 0 ° and 60 ° or less.
  • the light emitting surface 13b emits the emitted light L1a emitted from the light emitting surface 13a in the vertical direction and the emitted light L1b emitted from the light emitting surface 13b in the vertical direction so that the emitted light is emitted in a direction approaching each other. It is inclined with respect to the light emitting surface 13a. In this specification, this inclination direction is defined as “the light emitting surface 13b is inclined in a direction approaching the light emitting surface 13a”.
  • the light guide plate block 12b guides the light guide plate block 12a so that the light emitting surface 13b is inclined in a direction approaching the light emitting surface 13a of the adjacent light guide plate block 12a.
  • side 14a in contact with the light guide plate block 12b is outwardly when viewed from the light emitting surface 13a, is inclined by an angle theta a from the direction perpendicular to the light emission surface 13a.
  • the side surface 14b in contact with the light guide plate block 12a in the light guide plate block 12b is also perpendicular to the light emitting surface 13b outwardly from the light emitting surface 13b.
  • Inclined by an angle ⁇ A from the direction. That is, the end face shape of the light guide plate block 12 is an isosceles trapezoid whose upper base corresponding to the light emitting surface is shorter than the lower base.
  • ⁇ B 2 ⁇ ⁇ A is established. Therefore, the inclination angle ⁇ B between the light emitting surfaces 13 can be changed by changing the inclination angle ⁇ A of the side surface of each light guide plate block 12, thereby the backlight 10 having a substantially curved surface. The curvature of the entire light emitting surface can be changed. The smaller the angle theta B, the light-emitting surface of the entire backlight 10 will draw a smooth concave curved surface.
  • the backlight 10 in the present embodiment is a curved backlight that has a substantially concave curved surface as the light emitting surface of the entire backlight 10, and the side surface 14a on the light guide plate block 12b side of the light guide plate block 12a, and the light guide plate
  • the side surface 14b on the light guide plate block 12a side in the block 12b is configured to be separated from each other.
  • FIG. 8 is a view showing a cross section of the backlight 10 in the present embodiment.
  • the light guide plate block 12a and the light guide plate block 12b are adjacent to each other, and the side surface 14a of the light guide plate block 12a and the side surface 14b of the light guide plate block 12b are in contact with each other over the entire surface. It ’s not so far away.
  • the side 15a on the light guide plate block 12b side of the light emitting surface 13a of the light guide plate block 12a and the side 15b on the light guide plate block 12a side of the light emitting surface 13b of the light guide plate block 12b are in contact with each other.
  • an arrow L ⁇ b> 1 is for indicating a side from which light is emitted in the backlight 10, and is not intended to emit only in this direction.
  • FIG. 9 is a view showing adjacent portions of adjacent light guide plate blocks 12 a and 12 b in the backlight 10.
  • the side surface 14a in contact with the light guide plate block 12b in the light guide plate block 12a is a light emitting surface. It was inclined outward by an angle ⁇ A with respect to the direction perpendicular to the light emitting surface 13a.
  • the side surface 14a of the light guide plate block 12a is inwardly when viewed from the light emitting surface 13a, inclined by an angle theta A with respect to the direction perpendicular to the light emission surface 13a ing. That is, the end surface shape of the light guide plate block 12 is an isosceles trapezoid whose upper base corresponding to the light emitting surface is longer than the lower base. In this way, even when the light guide plate block 12 whose side surface 14 is inclined inward as viewed from the light emitting surface 13 is used, a curved backlight having a substantially concave curved surface as the light emitting surface of the entire backlight 10 is used. Can be formed.
  • each light guide plate block 12 is disposed so that the side surface 14a of the light guide plate block 12a and the side surface 14b of the light guide plate block 12b are not in surface contact, the inclination angle ⁇ B between the light emitting surfaces is determined by the light guide plate block. It is not uniquely defined by the inclination angle ⁇ A of the twelve side surfaces 14. Therefore, when forming a curved backlight, a curved backlight having an arbitrary curvature can be provided without depending on the shape of the light guide plate block 12 as compared with the above-described embodiment.
  • the light emitting surface of the backlight 10 as a whole forms a substantially convex curved surface or concave curved surface.
  • the backlight 10 in the present embodiment has an inflection point on the light emitting surface, and as a result, both the region that is substantially a convex curved surface and the region that is a substantially concave curved surface. Is included.
  • FIG. 10 is a view showing a cross section of the backlight 10 in the present embodiment.
  • the backlight 10 has a region R1 in which the light emitting surface of the backlight 10 as a whole is a substantially convex curved surface and a region R2 in which the light emitting surface is a substantially concave curved surface.
  • the light guide block 12c included in common in the region R1 and the region R2 is an inflection point.
  • the number of inflection points is not limited to one and may be two or more.
  • the side surfaces 14 of adjacent light guide plate blocks 12 are separated from each other, while the sides of the light emitting surface 13 are in contact with each other.
  • the light guide plate is arranged in a backlight holder in which the light guide plate blocks 12 can be arranged so that the regions R1 and R2 on the light emitting surface of the backlight 10 as a whole having a substantially curved surface each have a specific curvature. It can be obtained by fixing the block 12.
  • an arrow L ⁇ b> 1 is for indicating a side from which light is emitted in the backlight 10, and is not intended to emit only in this direction.
  • each light guide plate block 12 constituting the backlight 10 has each side surface 14 inclined inward as viewed from the light emitting surface 13. That is, the end surface shape of the light guide plate block 12 is preferably an isosceles trapezoid whose upper base corresponding to the light emitting surface 13 is longer than the lower base.
  • the light guide plate block 12 in which the side surface 14 is inclined inwardly forms a light emitting surface as the entire backlight 10 having a substantially convex curved surface and emits light as the entire backlight 10 having a substantially concave curved surface. It can be used in any case where a surface is formed. Therefore, when forming the light emitting surface having the region R1 which is a substantially convex curved surface and the region R2 which is a substantially concave curved surface, they can all be formed using the light guide plate block 12 having the same shape.
  • the backlight in the present embodiment on a wall surface having a complicated curved surface such as a wave shape, it is possible to install a display having a backlight with a high degree of uniformity along the curved surface.
  • the lighting device includes a side surface on the second light guide plate block side in the first light guide plate block and a side surface on the first light guide plate block side in the second light guide plate block.
  • the entire surface is preferably in contact with each other.
  • the entire light guide plate can be formed without the need for a separate fixture.
  • the illuminating device includes a side on the second light guide plate block side of the light emitting surface of the first light guide plate block, and the first light emitting surface of the second light guide plate block. Sides on the light guide plate block side are in contact with each other, a side surface on the second light guide plate block side in the first light guide plate block, and a side on the first light guide plate block side in the second light guide plate block The side surfaces are preferably separated from each other.
  • the inclination angle of the light emitting surface of the second light guide plate block with respect to the light emitting surface of the first light guide plate block is determined according to the size of the opening between the side surfaces of adjacent light guide plate blocks. be able to. Therefore, the inclination angle can be set regardless of the shape of the light guide plate block.
  • the emitted light emitted in the vertical direction from the light emitting surface of the first light guide plate block and the emitted light emitted in the vertical direction from the light emitting surface of the second light guide plate block is inclined with respect to the light emitting surface of the first light guide plate block so that the light is emitted in directions away from each other.
  • the emitted light emitted in the vertical direction from the light emitting surface of the first light guide plate block and the emitted light emitted in the vertical direction from the light emitting surface of the second light guide plate block is inclined with respect to the light emitting surface of the first light guide plate block so that the light is emitted in a direction approaching each other.
  • a display device includes the above-described illumination device and a curved display panel.
  • the display device having a curved display panel can supply light with a high degree of uniformity, a curved display device with excellent display quality can be realized.
  • the present invention can be used for a backlight of a display device having a curved display area.
  • Display device 10 Backlight (lighting device) 11 LED (light source) 12, 12a, 12b, 12c Light guide plate block 13, 13a, 13b Light emitting surface 14, 14a, 14b Side surface 15a, 15b Side 18 Reflective sheet 19 Optical sheet 20 Liquid crystal panel L1, L1a, L1b Emission light

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

L'invention concerne un rétro-éclairage (10) permettant d'obtenir un dispositif d'éclairage à surface électroluminescente incurvée à rapport d'uniformité élevé. Le rétro-éclairage comprend : une pluralité de blocs de plaque de guide de lumière (12) qui émettent en surface la lumière provenant de DEL (11) à partir de surfaces électroluminescentes planes (13) ; et des DEL (11) disposées sur la surface d'extrémité de chacun des blocs de la pluralité de blocs de plaque de guide de lumière (12). Un premier bloc de plaque de guide de lumière (12) et un second bloc de plaque de guide de lumière (12) parmi la pluralité de blocs de plaque de guide de lumière (12) sont adjacents et sont conçus de telle sorte que la surface électroluminescente (13) du second bloc de plaque de guide de lumière (12) est inclinée par rapport à la surface électroluminescente (13) du premier bloc de plaque de guide de lumière (12).
PCT/JP2011/078492 2010-12-15 2011-12-08 Dispositif d'éclairage et procédé d'affichage WO2012081504A1 (fr)

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JP2010-279453 2010-12-15
JP2010279453 2010-12-15

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WO2012081504A1 true WO2012081504A1 (fr) 2012-06-21

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103672614A (zh) * 2013-12-11 2014-03-26 深圳市华星光电技术有限公司 用于曲面液晶显示装置的背光模组以及曲面液晶显示装置
CN104678616A (zh) * 2015-02-02 2015-06-03 瑞仪光电股份有限公司 背板及其制作方法与背光模组
CN105118389A (zh) * 2015-09-29 2015-12-02 京东方科技集团股份有限公司 支撑背板及曲面显示器
CN105629575A (zh) * 2016-03-24 2016-06-01 京东方科技集团股份有限公司 一种曲面背光源及显示装置
WO2016138092A1 (fr) * 2015-02-25 2016-09-01 Rambus Delaware Llc Ensemble guide de lumière, ensemble logement, et ensemble d'éclairage les comprenant
WO2016157350A1 (fr) * 2015-03-30 2016-10-06 堺ディスプレイプロダクト株式会社 Dispositif d'affichage
WO2017173719A1 (fr) * 2016-04-06 2017-10-12 深圳市华星光电技术有限公司 Module de rétroéclairage et dispositif d'affichage
US10267980B2 (en) 2015-08-07 2019-04-23 Japan Display Inc. Illuminating device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006190684A (ja) * 2004-12-30 2006-07-20 Osram Opto Semiconductors Gmbh 複数の半導体光源を有する照明装置
JP2008210567A (ja) * 2007-02-23 2008-09-11 Takiron Co Ltd 面発色装置
WO2011148420A1 (fr) * 2010-05-26 2011-12-01 株式会社エス・ケー・ジー Dispositif d'éclairage

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006190684A (ja) * 2004-12-30 2006-07-20 Osram Opto Semiconductors Gmbh 複数の半導体光源を有する照明装置
JP2008210567A (ja) * 2007-02-23 2008-09-11 Takiron Co Ltd 面発色装置
WO2011148420A1 (fr) * 2010-05-26 2011-12-01 株式会社エス・ケー・ジー Dispositif d'éclairage

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CN103672614A (zh) * 2013-12-11 2014-03-26 深圳市华星光电技术有限公司 用于曲面液晶显示装置的背光模组以及曲面液晶显示装置
CN104678616B (zh) * 2015-02-02 2018-03-02 瑞仪光电股份有限公司 背板及其制作方法与背光模组
US9651733B2 (en) 2015-02-02 2017-05-16 Radiant Opto-Electronics Corporation Back plate and method for manufacturing the same and backlight module
CN104678616A (zh) * 2015-02-02 2015-06-03 瑞仪光电股份有限公司 背板及其制作方法与背光模组
WO2016138092A1 (fr) * 2015-02-25 2016-09-01 Rambus Delaware Llc Ensemble guide de lumière, ensemble logement, et ensemble d'éclairage les comprenant
WO2016157350A1 (fr) * 2015-03-30 2016-10-06 堺ディスプレイプロダクト株式会社 Dispositif d'affichage
US11493683B2 (en) 2015-08-07 2022-11-08 Japan Display Inc. Illuminating device
US11300725B2 (en) 2015-08-07 2022-04-12 Japan Display Inc. Illuminating device
US10989862B2 (en) 2015-08-07 2021-04-27 Japan Display Inc. Illuminating device
US10718895B2 (en) 2015-08-07 2020-07-21 Japan Display Inc. Illuminating device
CN110068885A (zh) * 2015-08-07 2019-07-30 株式会社日本显示器 照明装置
US10481322B2 (en) 2015-08-07 2019-11-19 Japan Display Inc. Illuminating device
US10267980B2 (en) 2015-08-07 2019-04-23 Japan Display Inc. Illuminating device
US10285265B2 (en) 2015-09-29 2019-05-07 Boe Technology Group Co., Ltd. Support back plate and curved display device
CN105118389A (zh) * 2015-09-29 2015-12-02 京东方科技集团股份有限公司 支撑背板及曲面显示器
US10197834B2 (en) 2016-03-24 2019-02-05 Boe Technology Group Co., Ltd. Curved-surface backlight source and display device
WO2017161663A1 (fr) * 2016-03-24 2017-09-28 京东方科技集团股份有限公司 Source de rétroéclairage à surface incurvée et dispositif d'affichage
CN105629575A (zh) * 2016-03-24 2016-06-01 京东方科技集团股份有限公司 一种曲面背光源及显示装置
WO2017173719A1 (fr) * 2016-04-06 2017-10-12 深圳市华星光电技术有限公司 Module de rétroéclairage et dispositif d'affichage

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