WO2012043406A1 - Module à plaques de guidage de lumière, dispositif d'éclairage et dispositif d'affichage - Google Patents

Module à plaques de guidage de lumière, dispositif d'éclairage et dispositif d'affichage Download PDF

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Publication number
WO2012043406A1
WO2012043406A1 PCT/JP2011/071703 JP2011071703W WO2012043406A1 WO 2012043406 A1 WO2012043406 A1 WO 2012043406A1 JP 2011071703 W JP2011071703 W JP 2011071703W WO 2012043406 A1 WO2012043406 A1 WO 2012043406A1
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WO
WIPO (PCT)
Prior art keywords
guide plate
light guide
light
blocks
plate block
Prior art date
Application number
PCT/JP2011/071703
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 WO2012043406A1 publication Critical patent/WO2012043406A1/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
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped 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 light guide plate module including a plurality of light guide plate blocks, and an illumination device and a display device including the light guide plate module.
  • the scan backlight method is a method in which a backlight divided into a plurality of blocks is sequentially turned on in accordance with the application timing of the video signal to the display panel, thereby performing a pseudo impulse type display.
  • adjacent blocks of the backlight are optically separated from each other and sequentially turned on for each segment.
  • FIG. 6 is a diagram illustrating a configuration of a conventional lighting device.
  • a light guide plate 302 composed of a plurality of blocks 302a arranged in a row, and a plurality of light sources 303 provided for each block 302a and irradiating the blocks 302a with light.
  • Illumination device 300 comprising: is described.
  • a gap 304 of 0.1 ⁇ m or more is formed in at least a part of the area between the adjacent blocks 302a, and an air layer 305 is formed in the gap 304.
  • Patent Document 2 discloses a backlight having a plurality of backlight blocks that illuminate the liquid crystal display panel with light emitted from a light source, and light emitted from the backlight block toward the liquid crystal display panel.
  • a liquid crystal display device including a light diffusion layer provided between a backlight and a liquid crystal display panel that diffuses to the adjacent backlight block side beyond the boundary surface between the two.
  • the light diffusion layer has at least one light diffusion limiting unit for limiting light diffusion at each position corresponding to each backlight block.
  • FIG. 7 is a diagram illustrating a configuration of a conventional lighting device 400 having the same configuration as the lighting device 300 described in Patent Document 1.
  • the boundary surfaces between two adjacent blocks 302a are parallel to the direction in which light is emitted. Therefore, the light emitted from the light source 303 and propagating through the light guide plate 302 causes the end face (hatched portion) 302b of the light guide plate 302 to shine at the boundary between adjacent blocks 302a.
  • bright lines are generated on the display surface of the display panel, so that the display quality of the display panel is significantly lowered.
  • the liquid crystal display device described in Patent Document 2 includes a light diffusion layer on the exit surface of the backlight, which causes a reduction in luminance.
  • the present invention has been made in view of the problems of the above-described conventional technology, and an object thereof is to provide a light guide plate module, an illuminating device, and a display device that can suppress generation of bright lines without reducing luminance. There is.
  • a light guide plate module includes a plurality of light guide plate blocks having an output surface that emits light, and the plurality of light guide plate blocks each have an output surface. Are arranged so as to be positioned on the same plane, and each of the plurality of light guide plate blocks has a thickness in a direction perpendicular to the exit surface that is thinner as it approaches another adjacent light guide plate block. It is configured.
  • each of the light guide plate blocks is configured such that the thickness in the direction perpendicular to the emission surface becomes thinner as it approaches another light guide plate block adjacent to the light guide plate block.
  • the end facing the adjacent light guide plate block can be prevented from shining, and the generation of bright lines can be suppressed.
  • the haze ratio is high ( It is necessary to provide a diffusion sheet having a low transmittance, or to separate (take a distance) between the light guide plate module and the diffusion sheet, resulting in a decrease in luminance. Moreover, a light guide plate module will become thick by separating between a light guide plate and a diffusion sheet.
  • the light guide plate module according to one embodiment of the present invention, it is not necessary to provide a diffusion sheet or the like for reducing bright lines, so that a reduction in luminance can be suppressed, and the light guide plate module can be thinned. It becomes possible.
  • the light guide plate module according to one embodiment of the present invention can provide a display panel having high display quality when used for a backlight of a display panel. Further, since it can be thinned, it can be suitably used for a display panel of a mobile device or the like. Furthermore, since a reduction in luminance can be suppressed, power consumption can be reduced.
  • an illumination device includes the above-described light guide plate module and a light source that causes light to enter each of the light guide plate blocks.
  • a display device includes the above-described lighting device and a display panel illuminated by the lighting device.
  • the display panel is illuminated by the lighting device having the above-described configuration, generation of bright lines can be suppressed and a display device with high display quality can be provided.
  • a light guide plate module includes a plurality of light guide plate blocks having an output surface that emits light, and each of the plurality of light guide plate blocks has the same output surface.
  • Each of the plurality of light guide plate blocks is configured such that the thickness in the direction perpendicular to the emission surface becomes thinner as the light guide plate block is closer to another adjacent light guide plate block. Therefore, the generation of bright lines can be suppressed without reducing the luminance.
  • FIG. 1 is a diagram showing a main configuration of a backlight according to an embodiment of the present invention.
  • the backlight 10 is an LED backlight of an edge light system that includes a light guide plate module 11 and a plurality of LEDs (light sources) 13.
  • the light guide plate module 11 includes a plurality of light guide plate blocks 12 having an emission surface 12a for emitting light.
  • the plurality of light guide plate blocks 12 are arranged so that the respective emission surfaces 12a are positioned on the same surface.
  • the surface constituted by the emission surface 12 a of each light guide plate block 12 serves as a light emitting surface of the light guide plate module 11.
  • the two adjacent light guide plate blocks 12 have a gap between them, and are physically separated from each other and optically separated.
  • the light guide plate blocks are “optically separated” from each other means that the light in the light guide plate block is configured not to enter another adjacent light guide plate block.
  • the light guide plate block 12 is a plate-like member for guiding and emitting light.
  • the emission surface 12a is a surface that emits light.
  • the boundary surface 12 b is a boundary surface with the adjacent light guide plate block 12.
  • the incident surface 12c is a surface on which light from the LED 13 is incident, and is a surface perpendicular to the emitting surface 12a.
  • the surface 12d is a surface parallel to the emission surface 12a. The light incident from the incident surface 12c is guided through the light guide plate block 12 and is emitted from the output surface 12a.
  • the light guide plate block 12 may be molded using, for example, a resin material.
  • the light guide plate block 12 includes a portion sandwiched between the exit surface 12a and the surface 12d and a portion sandwiched between the exit surface 12a and the boundary surface 12b.
  • the light guide plate block 12 is a surface perpendicular to the emission surface 12a and cut along a surface parallel to the direction (x direction) in which the plurality of light guide plate blocks 12 are arranged, that is, a surface parallel to the incident surface 12c. However, it is comprised so that it may become trapezoid shape.
  • the portion sandwiched between the emission surface 12a and the surface 12d has a constant thickness in the direction perpendicular to the emission surface 12a (z direction).
  • the width in the x direction and the thickness in the z direction of this portion are preferably equal to or greater than the size of the opening in the LED 13 from which light is emitted. Thereby, the utilization efficiency of the light from LED13 can be made high.
  • the thickness in the direction perpendicular to the emission surface 12a decreases as the distance between the adjacent light guide plate blocks 12 approaches.
  • the boundary surface 12b is a flat surface, and is configured such that the plane angle with the emission surface 12a is an acute angle.
  • acute angle refers to an angle smaller than 90 °.
  • the boundary surface 12b is configured to move away from the other adjacent light guide plate block 12 as the distance from the emission surface 12a increases.
  • the material forming the gap between the two adjacent light guide plate blocks 12 is preferably a material having a refractive index different from that of the material used for the light guide plate block 12 and has a refractive index higher than that of the material used for the light guide plate block 12. More preferably, the material is small. Thereby, the light emitted from the light source 13 and entering the light guide plate block 12 is totally reflected at the interface between the light guide plate block 12 and the gap between two adjacent light guide plate blocks 12. Therefore, the light that has entered the light guide plate block 12 can be prevented from entering the light guide plate block 12 that is disposed adjacent to the light guide plate block 12.
  • the gap between the two adjacent light guide plate blocks 12 As a material constituting the gap between the two adjacent light guide plate blocks 12, for example, air may be used. In this case, the gap between the two adjacent light guide plate blocks 12 becomes an air layer.
  • each light guide plate block 12 constitutes one light guide plate while being optically separated. Therefore, it is possible to reduce the man-hours in assembling the backlight 10.
  • the thickness of the light guide plate block 12 in the z direction is so thin that the light guide plate block 12 approaches another adjacent light guide plate block 12, so that the end of the light guide plate block 12 (the exit surface 12a and the boundary surface) It is possible to prevent the line of intersection with 12b; the portion corresponding to the end face 302b in FIG. Therefore, generation of bright lines can be suppressed.
  • the light guide plate module 11 does not need to be provided with a diffusion sheet or the like for suppressing the generation of bright lines, it can prevent a decrease in luminance and can be thinned.
  • the LED 13 is a light source that causes light to enter the light guide plate block 12, and is provided to face the incident surface 12 c of the light guide plate block 12.
  • a pseudo white LED, a high color rendering LED, an RGB-LED or the like can be used.
  • one LED 13 is provided for one light guide plate block 12, but the present invention is not limited to this, and a plurality of light sources may be provided for one light guide plate block.
  • two or more light sources may be provided on the incident surface of one light guide plate block.
  • the light guide plate block may include two incident surfaces facing each other, and a light source may be provided to face each incident surface. That is, the light guide plate block may receive light from two incident surfaces facing each other.
  • the light guide plate module 11 is composed of a plurality of light guide plate blocks 12, it can be easily increased in size while effectively utilizing existing facilities. Therefore, it can be suitably used for large display panels such as large televisions and information displays, display devices, and the like. In recent years, the size of displays and the like has further increased, but the present embodiment can sufficiently cope with such an increase in size.
  • the light-guide plate block 12 can be manufactured using the existing equipment, the new investment for producing the large sized light-guide plate module 11 and the backlight 10 can be reduced, and low price Thus, the light guide plate module 11 and the backlight 10 can be mass-produced. Therefore, it can contribute to the cost reduction of finished products, such as a large sized television.
  • FIG. 2 is a diagram showing a configuration of a liquid crystal display device according to an embodiment of the present invention.
  • the liquid crystal display device 100 includes the above-described backlight 10, a liquid crystal display panel (display panel) 101, and a control unit 102.
  • the backlight 10 is provided with a plurality of optical sheets 14 and 15 stacked on the emission surface 12a of the light guide plate block 12 in the light guide plate module 11 in addition to the above-described configuration.
  • the optical sheets 14 and 15 include a lens sheet for condensing light, a diffusion sheet for diffusing light, and a combination thereof.
  • two optical sheets are provided, but one optical sheet may be provided, or three or more optical sheets may be provided.
  • the liquid crystal display panel 101 is provided on the light exit plate 12 side of the light guide plate block 12 in the backlight 10 and performs screen display by being illuminated by light emitted from the backlight 10.
  • Examples of the liquid crystal display panel 101 include a TN (Twisted Nematic) type, an OCB (Optically Compensated Bend, Optically Compensated Birefringence) type, an IPS (In-Plane Switching) type, and a VA (Vertical Alignment) type. It is not limited.
  • the control unit 102 applies a video signal to the liquid crystal display panel 101 and controls the LEDs 13 provided in the plurality of light guide plate blocks 12 of the backlight 10 to be sequentially turned on in synchronization with the application timing. That is, the control unit 102 drives the liquid crystal display device 100 by a pseudo impulse drive method, and the liquid crystal display device 100 is a scan backlight type display device. Therefore, the liquid crystal display panel 101 can reduce a feeling of afterimage in moving image display.
  • liquid crystal display panel 101 is illuminated by the backlight 10 having the above-described configuration, generation of bright lines can be suppressed, and the liquid crystal display device 100 having high display quality can be provided.
  • the display device is not limited to the scan backlight method described above, and may be an active backlight method, for example. Even with the active backlight system, generation of bright lines can be suppressed by providing the backlight having the above-described structure, and display quality can be improved.
  • FIG. 3 is a top view showing a main configuration of a liquid crystal display device according to another embodiment of the present invention.
  • FIG. 3 shows the backlight (illumination device) 40 and the liquid crystal display panel (display panel) 111 in a shifted manner.
  • the backlight 40 includes two LEDs (light sources) 43 provided in each of the plurality of light guide plate blocks 12 (LG1 to LG5) in the light guide plate module 11.
  • the configuration is the same as that of the liquid crystal display device in the first embodiment.
  • the same number is attached
  • differences from the first embodiment will be mainly described.
  • the light guide plate module 11 is configured by five light guide plate blocks 12 (LG1 to LG5) will be described.
  • the present invention is not limited to this, and two or more light guide plate modules are provided. What is necessary is just to be comprised by this light-guide plate block.
  • a control unit controls the LEDs 43 provided in the plurality of light guide plate blocks 12 (LG1 to LG5) to be sequentially turned on in synchronization with the application timing of the video signal to the liquid crystal display panel 111.
  • the two adjacent light guide plate blocks 12 are optically separated from each other, for example, when LG1 is lit, the adjacent LG2 is not lit by light leaking from LG1.
  • the liquid crystal display panel 111 can be driven by a pseudo impulse type driving method, and the afterimage can be reduced in moving image display. Further, since the light source is turned off during black display, the contrast of the image can be improved and the power consumption can be reduced. Moreover, since the liquid crystal display panel 111 includes the light guide plate block 12 that becomes thinner as it approaches another adjacent light guide plate block 12, generation of bright lines can be suppressed and display quality can be improved. be able to.
  • FIG. 4 is a diagram showing a main configuration of a backlight according to another embodiment of the present invention.
  • the backlight 20 is different from the backlight 10 of the first embodiment only in that the backlight 20 includes a light guide plate module 21 constituted by a light guide plate block 22 having a shape different from that of the light guide plate block 12. Therefore, for convenience of explanation, the same number is attached
  • the two adjacent light guide plate blocks 22 are optically separated from each other, like the light guide plate block 12 of the first embodiment.
  • the light guide plate block 22 is a plate-like member for guiding and emitting light.
  • the emission surface 22a is a surface that emits light.
  • the boundary surface 22 b is a boundary surface with the adjacent light guide plate block 12.
  • the incident surface 22c is a surface on which light from the LED 13 is incident, and is a surface perpendicular to the emitting surface 22a.
  • the surface 22d is a surface parallel to the emission surface 12a. The light incident from the incident surface 22c is guided through the light guide plate block 22 and is emitted from the output surface 22a.
  • the light guide plate block 12 includes a portion sandwiched between the exit surface 22a and the surface 22d and a portion sandwiched between the exit surface 22a and the boundary surface 22b.
  • the portion sandwiched between the exit surface 22a and the surface 22d is configured in the same manner as the portion sandwiched between the exit surface 12a and the surface 12d of the first embodiment.
  • the portion sandwiched between the emission surface 22a and the boundary surface 22b becomes thinner in the z direction as it approaches the other light guide plate block 22 adjacent thereto.
  • the boundary surface 22 b is a curved surface that is recessed inside the light guide plate block 22. That is, the light guide plate block 22 is cut into a surface perpendicular to the emission surface 22a and parallel to the direction in which the plurality of light guide plate blocks 22 are arranged (x direction), that is, a surface parallel to the incident surface 22c.
  • the line constituting the boundary surface 22 b is a curve that draws an arc in a mountain shape toward the inside of the light guide plate block 22.
  • the light guide plate module 21 can prevent the end of the light guide plate block 22 from shining, so that generation of bright lines can be suppressed.
  • the light guide plate module 21 does not need to be provided with a diffusion sheet or the like for suppressing the generation of bright lines, it can prevent a decrease in luminance and can be thinned.
  • the viewing angle in the direction in which the plurality of light guide plate blocks 22 are arranged can be made wider.
  • the viewing angle in the x direction can be adjusted by the shape of the boundary surface 22b, and as a result, the front luminance can be adjusted.
  • FIG. 5 is a diagram showing a main configuration of a backlight according to another embodiment of the present invention.
  • the backlight 30 is different from the backlight 10 of the first embodiment only in that the backlight 30 includes a light guide plate module 31 constituted by a light guide plate block 32 having a shape different from that of the light guide plate block 12. Therefore, for convenience of explanation, the same number is attached
  • the two adjacent light guide plate blocks 32 are optically separated from each other, like the light guide plate block 12 of the first embodiment.
  • the light guide plate block 32 is a plate-like member for guiding and emitting light.
  • the emission surface 32a is a surface that emits light.
  • the boundary surface 32 b is a boundary surface with the adjacent light guide plate block 32.
  • the incident surface 32c is a surface on which light from the LED 13 is incident, and is a surface perpendicular to the emission surface 32a.
  • the surface 32d is a surface parallel to the emission surface 32a. The light incident from the incident surface 32c is guided through the light guide plate block 32 and is emitted from the output surface 32a.
  • the light guide plate block 32 includes a portion sandwiched between the exit surface 32a and the surface 32d and a portion sandwiched between the exit surface 32a and the boundary surface 32b.
  • the portion sandwiched between the exit surface 32a and the surface 32d is configured in the same manner as the portion sandwiched between the exit surface 12a and the surface 12d of the first embodiment.
  • the portion sandwiched between the emission surface 32a and the boundary surface 32b becomes thinner in the z direction as it approaches the other light guide plate block 32 adjacent thereto.
  • the boundary surface 32 b is a curved surface that rises in a mountain shape toward the outside of the light guide plate block 32. That is, the light guide plate block 32 is cut into a surface perpendicular to the emission surface 32a and parallel to the direction in which the plurality of light guide plate blocks 32 are arranged (x direction), that is, a surface parallel to the incident surface 32c.
  • the line constituting the boundary surface 32 b is a curve that draws an arc toward the outside of the light guide plate block 32.
  • the light guide plate module 31 can prevent the end of the light guide plate block 32 from shining, so that generation of bright lines can be suppressed.
  • the light guide plate module 31 does not need to be provided with a diffusion sheet or the like for suppressing generation of bright lines, it can prevent a decrease in luminance and can be thinned.
  • the field of view in the direction in which the plurality of light guide plate blocks 32 are arranged is compared with the case where the boundary surface 32b is not raised in a mountain shape toward the outside of the light guide plate block 32. Since the angle becomes narrower and the degree of light collection increases, the front luminance of the light emitted from the backlight 30 can be increased. Thus, the viewing angle in the x direction can be adjusted by the shape of the boundary surface 32b, and as a result, the front luminance can be adjusted.
  • each of the plurality of light guide plate blocks has a boundary surface facing another light guide plate block adjacent to the light guide plate block.
  • the boundary surface is a flat surface and a plane angle with the emission surface is an acute angle.
  • each of the light guide plate blocks is a surface perpendicular to the emission surface and cut in a direction parallel to the direction in which the plurality of light guide plate blocks are arranged.
  • the cross section is preferably trapezoidal.
  • each of the plurality of light guide plate blocks has a boundary surface facing another light guide plate block adjacent to the light guide plate block.
  • the boundary surface is preferably a curved surface recessed inside the light guide plate block.
  • the viewing angle of the direction where the several light-guide plate block is located in a line can be made wider.
  • each of the plurality of light guide plate blocks has a boundary surface facing another light guide plate block adjacent to the light guide plate block.
  • the boundary surface is preferably a curved surface that rises in a mountain shape toward the outside of the light guide plate block.
  • the viewing angle in the direction in which the plurality of light guide plate blocks are arranged becomes narrower and the degree of light collection compared to the case where the boundary surface is not raised in a mountain shape toward the outside of the light guide plate block. Since the brightness increases, the front luminance can be increased.
  • the present invention can suppress the generation of bright lines without lowering the luminance, it can be suitably used for a display device, particularly a large display device, or a light guide plate module, a lighting device, etc. for use in the display device. it can.

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

Abstract

Un module (11) à plaques de guidage de lumière est doté de blocs-plaques (12) de guidage de lumière possédant chacun une surface de sortie de lumière (12a) servant à sortir la lumière. Les blocs-plaques (12) de guidage de lumière sont agencés de sorte que les surfaces de sortie de lumière respectives (12a) sont alignées les unes sur les autres. Chacun des blocs-plaques (12) de guidage de lumière est configuré de sorte que l'épaisseur du bloc-plaque (12) de guidage de lumière dans la direction perpendiculaire à la surface de sortie de lumière (12a) diminue vers un autre bloc-plaque (12) de guidage de lumière adjacent à celui-ci.
PCT/JP2011/071703 2010-09-29 2011-09-22 Module à plaques de guidage de lumière, dispositif d'éclairage et dispositif d'affichage WO2012043406A1 (fr)

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JP2010219709 2010-09-29
JP2010-219709 2010-09-29

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WO2012043406A1 true WO2012043406A1 (fr) 2012-04-05

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018099849A1 (fr) * 2016-12-02 2018-06-07 Ascensia Diabetes Care Holdings Ag Systèmes, procédés et appareil d'éclairage de parties de bord d'une face de lentille d'affichage de dispositif électronique

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004303564A (ja) * 2003-03-31 2004-10-28 Fujitsu Display Technologies Corp 照明装置及びそれを備えた表示装置
JP2007207598A (ja) * 2006-02-02 2007-08-16 Fujifilm Corp 面状照明装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004303564A (ja) * 2003-03-31 2004-10-28 Fujitsu Display Technologies Corp 照明装置及びそれを備えた表示装置
JP2007207598A (ja) * 2006-02-02 2007-08-16 Fujifilm Corp 面状照明装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018099849A1 (fr) * 2016-12-02 2018-06-07 Ascensia Diabetes Care Holdings Ag Systèmes, procédés et appareil d'éclairage de parties de bord d'une face de lentille d'affichage de dispositif électronique
CN110023676A (zh) * 2016-12-02 2019-07-16 安晟信医疗科技控股公司 用于照亮电子设备显示透镜的表面的边缘部分的系统、方法和装置
JP2020518941A (ja) * 2016-12-02 2020-06-25 アセンシア・ディアベティス・ケア・ホールディングス・アーゲー 電子デバイスディスプレイレンズの面の縁部分を照明するためのシステム、方法、および装置
US10866353B2 (en) 2016-12-02 2020-12-15 Ascensia Diabetes Care Holdings Ag Systems, methods and apparatus for illuminating edge portions of a face of an electronic device display lens
CN110023676B (zh) * 2016-12-02 2021-03-16 安晟信医疗科技控股公司 用于照亮电子设备显示透镜的表面的边缘部分的系统、方法和装置
JP7042825B2 (ja) 2016-12-02 2022-03-28 アセンシア・ディアベティス・ケア・ホールディングス・アーゲー 電子デバイスディスプレイレンズの面の縁部分を照明するためのシステム、方法、および装置

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