JP2002245835A - Illumination device, display device, and electronic equipment - Google Patents

Illumination device, display device, and electronic equipment

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Publication number
JP2002245835A
JP2002245835A JP2001038380A JP2001038380A JP2002245835A JP 2002245835 A JP2002245835 A JP 2002245835A JP 2001038380 A JP2001038380 A JP 2001038380A JP 2001038380 A JP2001038380 A JP 2001038380A JP 2002245835 A JP2002245835 A JP 2002245835A
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Japan
Prior art keywords
guide plate
light guide
light
side
illuminated portion
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
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JP2001038380A
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Japanese (ja)
Inventor
Ichiro Fujishiro
Hiroshi Oshitani
Yoshie Shimizu
宏史 押谷
佳恵 清水
一朗 藤代
Original Assignee
Minolta Co Ltd
ミノルタ株式会社
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Application filed by Minolta Co Ltd, ミノルタ株式会社 filed Critical Minolta Co Ltd
Priority to JP2001038380A priority Critical patent/JP2002245835A/en
Publication of JP2002245835A publication Critical patent/JP2002245835A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide an illumination device which has a structure of re-using leaked light from a light guide plate. SOLUTION: The illumination device consists of a first light guide plate 6 equipped with a first side surface 6A and a second side surface 6B, and a light source 14 which is arranged opposing to the first side surface 6A of the first light guide plate 6 and puts in light to the first light guide plate 6 through the side surface, and a first illumination part 2 is illuminated using guided light from the first light guide plate 6. Furthermore, the illumination device is provided with a second light guide plate 8 equipped with a third side surface 8A, with which light emitted from the second side surface 6B of the first light guide plate 6 is guided to the second light guide plate 8 through the third side surface 8A, and a second illuminated part 4 is illuminated using light guided from the second light guide plate 8.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【発明の属する技術分野】本発明は、表示素子(例えば液晶パネル)を均一に照明するための導光板を備えた照明装置、これを備えた表示装置、さらに該照明装置又は表示装置を備えた電子機器に関する。 BACKGROUND OF THE INVENTION The present invention provides an illumination device including a light guide plate to uniformly illuminate the display element (liquid crystal panel, for example), a display device having the same, further comprising the lighting device or a display device the present invention relates to an electronic device.

【0002】 [0002]

【従来の技術】複数の被照明部が隣接し、これらが互いに異なる機能を有する電子機器は、被照明部として例えばコンテンツ表示部や操作ボタンを備える携帯電話など、多数知られている。 And [ART adjacent plurality of the illuminated portion, the electronic device that they have different functions, such as mobile phones comprise, for example, the content display unit, operation buttons as the illuminated portion, known number. このような電子機器を暗所で使用する場合には、視認性向上のために照明を行う必要がある。 When using such an electronic apparatus in the dark, it is necessary to perform lighting for improving visibility. この目的のために、操作ボタンなどの被照明部の場合では、その近傍に個別に光源を設け被照明部に直接光源の光を当て、表示部など表示面積が比較的広い被照明部の場合では、その前面(観察側)又は背面に導光板を設けるとともに導光板の側面近傍に光源を設け、該側面から光源の光を導光板に入射させ、さらに導光板から被照明部に光を導くことが多い。 For this purpose, in the case of the illuminated portion of the operation buttons, illuminated directly source the illuminated portion provided light sources separately in the vicinity, if the relatively wide illuminated portion appears area display section in its front face a light source is provided in the vicinity of the side surface of the light guide plate with (viewing side) or providing the light guide plate on the back, is incident from the side surface of the light source to the light guide plate guides the light to the illuminated portion further from the light guide plate in many cases. このように導光板を被照明部の前面、背面に設ける方法は、それぞれ、フロントライト式、バックライト式と呼ばれている。 Thus the front of the illuminated portion of the light guide plate, a method of providing the rear, respectively, a front light type, called a backlit.

【0003】 [0003]

【発明が解決しようとする課題】導光板を用いる場合、 THE INVENTION Problems to be Solved] When using a light guide plate,
導光板の側面から入射させた光の一部が、被照明部に向かわずに反対側の側面から外部に透過し被照明部の照明に利用されない問題が生じていた。 Some of the light is incident from the side surface of the light guide plate, a problem that is not utilized transmitted to the outside from the opposite side to the illumination of the illuminated portion has occurred without direct to the illuminated portion.

【0004】そこで、本発明は、導光板から漏れた光を再利用する機構を備えた照明装置を提供することを目的とする。 [0004] The present invention has an object to provide a lighting device having a mechanism for reusing light leaked from the light guide plate.

【0005】また、本発明は、上記照明装置を備えた表示装置、さらにこの表示装置を備えた電子機器を提供することを目的とする。 [0005] The present invention relates to a display device having the above-described illumination device, and to provide a further electronic apparatus having the display device.

【0006】 [0006]

【発明の概要】上記目的を達成するために、本発明に係る照明装置は、第1の側面及び第2の側面を備えた第1 To achieve SUMMARY OF THE INVENTION The object, the lighting apparatus according to the present invention, first with a first side and a second side
の導光板と、第1の導光板の第1の側面に対向して配置され、該側面を介して第1の導光板に光を入射する光源とを有する照明装置において、第1の導光板の主面から出射される光を利用して第1の被照明部を照明し、照明装置はさらに、第3の側面を備えた第2の導光板を有し、第1の導光板の第2の側面から出射した光を、第3 And the light guide plate, disposed opposite to the first side of the first light guide plate, the illumination device having a light source which light enters the first light guide plate through the side surface, the first light guide plate first illuminates an illuminated portion by utilizing the light emitted from the main surface, the illumination device further includes a second light guide plate having a third aspect, the first light guide plate first the light emitted from the second side, third
の側面を介して第2の導光板に導き、第2の導光板の主面から出射される光を利用して第2の被照明部を照明する。 Side guided to the second light guide plate through the, to illuminate the second illuminated portion by utilizing the light emitted from the main surface of the second light guide plate.

【0007】一実施形態では、第1の導光板の第2の側面と第2の導光板の第3の側面との間に反射部材をさらに設けて、第1の導光板の第2の側面から出射した光を第2の導光板の第3の側面に導く。 [0007] In one embodiment, further provided a reflecting member between the third side surface of the second side of the first light guide plate the second light guide plate, a second side surface of the first light guide plate guiding the light emitted to the third aspect of the second light guide plate from.

【0008】別の実施形態では、第1の導光板の第2の側面と前記第2の導光板の第3の側面との間を光ファイバで接続して、第1の導光板の第2の側面から出射した光を第2の導光板の第3の側面に導く。 [0008] In another embodiment, between the third side surface of the first light guide plate second side surface and the second light guide plate are connected by optical fibers, the first light guide plate second guiding the light emitted from the side face to the third aspect of the second light guide plate.

【0009】さらに別の実施形態では、第1の導光板の第2の側面から出射した光を第2の導光板の第3の側面に導く第1の位置と、第1の導光板の第2の側面から出射した光を再度第1の導光板に導く第2の位置との間で切換可能な反射部材をさらに設ける。 [0009] In yet another embodiment, a first position for guiding the light emitted from the second side of the first light guide plate to the third aspect of the second light guide plate, the first light guide plate first further provided switchable reflecting member and a second position for guiding the first light guide plate the light emitted again 2 sides.

【0010】本発明に係る表示装置は、上述の照明装置と、第1及び第2の被照明部として第1及び第2の表示素子とを備える。 [0010] The display device according to the present invention includes a lighting device described above, the first and second display elements as the first and second illuminated portion.

【0011】第1及び第2の表示素子としては、照明装置との組み合わせに応じて、ともに透過型表示素子、ともに反射型表示素子、あるいは、一方に透過型表示素子、他方に反射型表示素子が選択される。 [0011] As the first and second display elements, depending on the combination of the lighting device, both the transmissive display element, both the reflective-type display element or a reflective display element transmissive type display element, the other one There is selected.

【0012】本発明に係る電子機器は、上述の照明装置又は表示装置を備える。 [0012] electronic device according to the present invention includes a lighting device or a display device described above.

【0013】 [0013]

【発明の実施の形態】以下、添付図面を参照して本発明の好適な実施の形態を説明する。 BEST MODE FOR CARRYING OUT THE INVENTION The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. 以下の説明において、 In the following description,
「透過型被照明部」は、バックライト式で照明されるものであり、ツイステッドネマチック液晶などの透過型液晶を用いた液晶パネル、表示板、操作ボタンなどが例示できる。 "Transmission illuminated portion" is intended to be illuminated by the backlight type liquid crystal panel using a transmission type liquid crystal such as twisted nematic liquid crystal, display panel, operation buttons can be exemplified. 一方、「反射型被照明部」は、フロントライト式で照明されるものであり、カイラルネマチック液晶など反射型液晶を用いた液晶パネル、表示板、印刷物(例えばポスター)などが例示できる。 On the other hand, "reflective illuminated portion" is intended to be illuminated by the front light type, chiral nematic liquid crystal such as a liquid crystal panel using a reflective liquid crystal display panel, such as printed material (e.g., poster) can be exemplified. また、「反射型被照明部」には、液晶パネルに用いられる液晶として、液晶自身の選択反射による反射型液晶ではなく透過型液晶を用い、反射板を背面に設け液晶パネル全体として反射型となるものも含まれる。 Further, the "reflective illuminated portion", as the liquid crystal used in the liquid crystal panel, a transmissive liquid crystal used rather than a reflective liquid crystal by selective reflection of the liquid crystal itself, a reflection type liquid crystal panel as a whole a reflective plate on the back also included are made.

【0014】(第1の実施形態)図1(a)は、本発明の第1の実施形態に係る照明装置を備えた電子機器すなわち携帯電話の外観を示す上面図であり、符号1はケースを表わす。 [0014] (First Embodiment) FIG. 1 (a) is a top view showing an appearance of an electronic device i.e. a mobile phone with a lighting device according to a first embodiment of the present invention, reference numeral 1 Case representing the. 携帯電話は、液晶パネルからなる第1の被照明部2(第1の表示素子)を有するとともに、ケース1上に操作ボタンが配列された第2の被照明部(第2の表示素子)4を有する。 Mobile phone, has a first illuminated portion 2 composed of a liquid crystal panel (first display device), the second illuminated portion where the operation buttons on the casing 1 are arranged (second display element) 4 having. 携帯電話内部の断面図である図1(b)に示すように、第1の被照明部2の前面(観察側)には、該被照明部2に対し光を前面から照明するための第1の導光板6が配置されている。 As shown in FIG. 1 is a cross-sectional view of an internal mobile phone (b), the first front of the illuminated portion 2 (observer side), the for illuminating light from the front surface to 該被 illumination part 2 1 of the light guide plate 6 is disposed. また、第2の被照明部4の背面側(観察側とは反対側)には、該被照明部4に対し光を背面から照明するための第2の導光板8 Further, on the rear side of the second of the illuminated portion 4 (observation side and opposite side), the second light guide plate 8 for illuminating light from the back to 該被 illuminator 4
が配置されている。 There has been placed. なお、第1の被照明部2は反射型被照明部であり、第2の被照明部4は透過型被照明部である。 The first of the illuminated portion 2 is reflective illuminated portion, the second illuminated portion 4 is of a transmissive type illuminated portion.

【0015】導光板6、8の材料としては、アクリル樹脂、ポリカーボネート樹脂、アモルファスポリオレフィン樹脂などの透明樹脂、ガラスなどの無機透明材料、あるいはそれらの複合材料などが挙げられる。 [0015] As a material of the light guide plate 6 and 8, an acrylic resin, a polycarbonate resin, a transparent resin, inorganic transparent material such as glass, such as amorphous polyolefin resin, or the like composites thereof.

【0016】第2の被照明部4である操作ボタンは、光透過性の材料からなるとともに、押下可能に構成されている。 The operation button is the second of the illuminated portion 4, it becomes a light transmissive material, and is depressible configured. 操作ボタン4の下方には、少なくとも、スイッチパターンが配線された透明シート10と、操作ボタンの押下に連動して所定の回路のオン・オフを行う導電性の接続片(図示せず)とが設けてあり、これにより、ユーザにより操作ボタンが選択的に押下されると、導電性の接続片がスイッチパターンに当接し、上記回路の接続が行われるようにしてある。 Below the button 4, at least, a transparent sheet 10 which switch patterns are wired, electrically conductive connecting piece that performs on-off of a given circuit in conjunction with the pressing of the operation button (not shown) is is provided with, thereby, when the operation button is pressed by the user selectively, electrically conductive connecting piece abuts the switch pattern, are as connections of the circuit is performed. この回路が閉じると、第1の被照明部である液晶パネル2の表示を制御するための表示制御部(図示せず)に所定の信号を送るようになっている。 When the circuit is closed, which is a display control unit for controlling the display of the liquid crystal panel 2 is first illuminated portion (not shown) to send a predetermined signal.

【0017】携帯電話1の頭部には、第1の導光板6の第1の側面6Aに対向して、背面にリフレクタ12を配した光源14(例えば、LED、有機EL素子、冷陰極管などの光源)が配置され、光源14からの光を第1の側面6Aを介して第1の導光板6内に導くようにしてある。 [0017] of the mobile phone 1 head, opposite the first side surface 6A of the first light guide plate 6, a light source 14 which arranged reflector 12 to the rear (e.g., LED, organic EL device, a cold cathode tube the light source) is arranged such, the light source light from the 14 are to guide the first of the first light guide plate 6 through the side surfaces 6A.

【0018】また、第1の導光板6と第2の導光板8との間には、反射部材としてミラー16が設けてあり、第1の導光板6の第1の側面6Aとは反対側の側面6Bから出射した光を、第2の導光板8の第3の側面8Aに導くようにしてある。 Further, the first light guide plate 6 is provided between the second light guide plate 8, Yes and mirror 16 is provided as a reflecting member, opposite to the first side face 6A of the first light guide plate 6 the light emitted from the side face 6B, are to guide the third aspect 8A of the second light guide plate 8.

【0019】なお、第1の導光板6の上面(上側の主面)6Cには、図1(c)に示すように、断面が例えば鋸状などの微細な突起を加工することにより、光源14 [0019] Note that the first top (upper major surface) of the light guide plate 6 6C, as shown in FIG. 1 (c), by processing the fine protrusions such as cross-section for example serrated, light source 14
からの光を高効率で反射し、下面(下側の主面)6Dから第1の被照明部2に向けて出射するようにするのが好ましい。 The light from reflected by the high efficiency, the lower surface preferably to be emitted toward the (lower major surface) 6D the first illuminated portion 2. また、図示は省略するが、第2の導光板8の下面(下側の主面)8Dも同様の突起を加工することにより、第3の側面8Aから入射した光を高効率で反射したり、操作ボタンの直下で光を拡散させて上面(上側の主面)8Cから第2の被照明部4に向けて出射するようにするのが好ましい。 Although not shown, by processing the lower surface (lower major surface) 8D a similar projection of the second light guide plate 8, or the light incident from the third side face 8A reflected with high efficiency , preferably to be emitted toward the by diffusing the light top (upper major surface) 8C to the second illuminated portion 4 just below the operation button.

【0020】このような構成によれば、光源14からの光は、第1の導光板6に第1の側面6Aから入射して第1の被照明部2の照明に利用されるとともに、第2の側面6Bから漏れた光は、反射部材16を介して、第3の側面8Aから第2の導光板8に入射し第2の被照明部4 According to such a configuration, the light from the light source 14 is utilized in the first light guide plate 6 is incident from the first side 6A in a first illumination of the illuminated portion 2, the the light leaked from the second side surface 6B, via the reflecting member 16, the second illuminated portion enters from the third side face 8A to the second light guide plate 8 4
の照明に再利用される。 It is reused for the lighting of. このように漏洩光を再利用することで光源数の削減が可能となり、省部品化・省電力化を実現することができる。 Thus it is possible to reduce the number of light sources by reusing light leaked, it is possible to realize a savings component reduction and power saving.

【0021】また、第1の導光板6から漏れた光を第2 Further, the light leaking from the first light guide plate 6 second
の導光板8に導くのに反射部材16を用いることにより、導光板間に何も設けない場合に比べて光損失が少なく、また簡単な構造で導光することができる。 By using the reflection member 16 to guide the light guide plate 8, less light loss compared to the case where the light guide plates not provided any, also may be light guide with a simple structure. また、第1の導光板6と第2の導光板8との相対角度を用途に応じて設定する上での自由度が大きい。 Further, a large degree of freedom in setting in accordance with the relative angle between the first light guide plate 6 and the second light guide plate 8 on the application.

【0022】(第2の実施形態)図2は、本発明の第2 [0022] (Second Embodiment) FIG. 2 is a second embodiment of the present invention
の実施形態に係る照明装置を備えた表示装置の断面図を示す。 It shows a cross-sectional view of a display device including an illumination device according to the embodiment. 照明装置は、第1の導光板106の第2の側面1 Illuminator, the second side surface 1 of the first light guide plate 106
06Bと第2の導光板206の第1の側面206Aとを、導波路である光ファイバ116で光学接続し、これにより第1の導光板106から第2の側面106Bを介して漏れた光を第2の導光板206の第3の側面206 06B the first and side surfaces 206A of the second light guide plate 206, and the optical connecting an optical fiber 116 is a waveguide, the light leaking through this by the first light guide plate 106 and the second side surface 106B third aspect 206 of the second light guide plate 206
Aに導くようにしてある。 It is to guide the A. 第1の実施形態の反射部材1 Reflection member 1 of the first embodiment
6の代わりに光ファイバ116を用いることで、照明装置が軽量化できるとともにさらに光損失が少ない利点がある。 6 The use of the optical fiber 116 instead of the lighting device is further an advantage of light loss is small it is possible to weight reduction. また、第1の被照明部102と第2の被照明部2 Further, the first illuminated portion 102 second illuminated portion 2
02との間の距離や相対角度θを自由に設定できる。 It can be freely set the distance and relative angle θ between 02.

【0023】なお、第1の実施形態においては、第1の導光板が第1の被照明部を照明する主面と、前記第2の導光板が第2の被照明部を照明する主面とが、第1の導光板から第2の導光板へ導かれる光の進行方向に対し異なる側に設定されていたが、本実施形態においては、これらの主面を第1の導光板から第2の導光板へ導かれる光の進行方向に対し同じ側に設定している。 [0023] In the first embodiment, the main surface and the major surface of the first light guide plate to illuminate the first illuminated portion, wherein the second light guide plate to illuminate the second illuminated portion DOO is, had been set on different sides with respect to the traveling direction of the light guided from the first light guide plate to the second light guide plate, in this embodiment, the these main surface from the first light guide plate It is set on the same side with respect to the traveling direction of the light guided to the second light guide plate. 特に、図の形態のように、第1、第2の被照明部102、202ともに反射型被照明部にする(すなわち、第1、第2の表示素子ともに反射型表示素子にする)ことで、第1、第2の被照明部102、202はそれぞれ、明所において、上面106C、206Cを介して第1及び2の導光板106、206に取り入れた外光を利用することで、 In particular, as in the embodiment of FIG, first, second illuminated portion 102, 202 together to a reflective illuminated portion (i.e., first, for the reflection type display device in both the second display device) that is , first, the respective second illuminated portion 102, 202 in the light place, the top surface 106C, by using the external light taken into the first and second light guide plates 106 and 206 through the 206C,
光源14の消灯あるいは光源14の輝度を小さくでき、 The brightness of the off or the light source 14 of the light source 14 can be reduced,
更なる省電力化が図れる。 Further power saving can be achieved.

【0024】被照明部102、202として液晶パネルを用い、第1の被照明部102と第2の被照明部202 [0024] a liquid crystal panel is used as the illuminated portion 102 and 202, and the first of the illuminated portion 102 second illuminated portion 202
とをそれぞれ図示しないフレーム内に保持し、これらフレームをヒンジ機構(図示せず)を介して連結すれば、 Held in the frame (not shown) collected by each, if connecting the frame via a hinge mechanism (not shown),
本実施形態の照明装置は、表示装置として例えば見開きが自由に行える電子ブックに適用できる。 Lighting apparatus of the present embodiment can be applied to an electronic book be freely is spread for example as a display device.

【0025】(第3の実施形態)図3(a),(b) [0025] (Third Embodiment) FIG 3 (a), (b)
は、本発明の第3の実施形態に係る照明装置を備えた表示装置の断面図を示す。 Shows a cross-sectional view of a display device including an illumination device according to a third embodiment of the present invention. 本実施形態では、第1の被照明部302は透過型被照明部であり、第2の被照明部40 In the present embodiment, the first illuminated portion 302 is transmissive illuminated portion, the second illuminated portion 40
2は反射型被照明部である。 2 is a reflective illuminated portion. また、第1の実施形態と同様に、第1の導光板306と第2の導光板406との間に反射部材316が設けてある。 As in the first embodiment, the reflecting member 316 is provided between the first light guide plate 306 and the second light guide plate 406. 更に詳しくは、反射部材316は、第2の導光板406の第3の側面406A More specifically, the reflective member 316 of the second light guide plate 406 third aspect 406A
の側方に固定された第1のミラー318と、第1の導光板306の第2の側面306Bの側方に配置された第2 A first mirror 318 that is fixed to the side of the second which is located on a side of the second side surface 306B of the first light guide plate 306
のミラー320とからなり、第2のミラー320は、第1のミラー318と協働して第1の導光板306から出射された光を第2の導光板406に導く第1の位置32 Consists of mirror 320. The second mirror 320 includes a first position for guiding the light emitted from the first mirror 318 in cooperation with the first light guide plate 306 to the second light guide plate 406 32
0a[図3(a)]と、第2の側面306Bから出た光を反射して再度第1の導光板306内に導く第2の位置320b[図3(b)]との間で移動できるようになっている。 0a [FIG 3 (a)] and the movement between the second position 320b leading to the second first again reflecting the light emitted from the side surface 306B of the light guide plate 306 [Figure 3 (b)] It has become possible way.

【0026】このような構成によれば、例えば暗所においては第2のミラーを第1の位置320aに設定することで第1と第2の被照明部302、402ともに光源1 According to such a configuration, for example, in the dark the first and second illuminated portion 302, 402 together light source by setting the second mirror to the first position 320a 1
4からの光により照明し、いずれの被照明部をも視認可能とする。 Illuminated by the light from the 4, also visible to any of the illuminated portion. 一方、明所において第2のミラーを第2の位置320bに設定することで第1の被照明部302のみを光源14からの光により照明する。 On the other hand, only the first of the illuminated portion 302 by setting the second mirror to the second position 320b to illuminate the light from the light source 14 in the bright place. フロントライト式で照明を行う第2の被照明部402は、上面406Cを介して第2の導光板406に導かれた外光を利用して照明される。 The second of the illuminated portion which performs illumination by the front light type 402 is illuminated using external light guided to the second light guide plate 406 through the top surface 406C. なお、第2のミラー320により第2の側面306Bから出た光を反射して再度第1の導光板306 The second mirror 320 by the second re-reflects the light emitted from the side surface 306B first light guide plate 306
内に導くことで、第1の被照明部320における光源1 By directing within, the light source 1 in the first illuminated portion 320
4からの光の利用効率を高めることができる。 Light utilization efficiency from 4 can be enhanced. このように、用途や環境などに応じて、必要なときのみ反射型被照明部402を光源14を利用して照明することができる。 Thus, depending on the application and the environment, it can be illuminated using a light source 14 a reflective illuminated portion 402 only when necessary.

【0027】(第4の実施形態)図4は、本発明の第4 [0027] (Fourth Embodiment) FIG. 4 is a fourth of the present invention
の実施形態に係る照明装置を備えた表示装置の断面図を示す。 It shows a cross-sectional view of a display device including an illumination device according to the embodiment. 本実施形態では、第1の被照明部502を照明する第1の導光板506と、第2の被照明部602を照明する第2の導光板606とを直接接続したものである。 In the present embodiment, the first light guide plate 506 to illuminate the first illuminated portion 502, in which a second light guide plate 606 to illuminate the second illuminated portion 602 directly connected.
第1の導光板506と第2の導光板606との間は、これら導光板と同程度の屈折率を有する光透過性の接着剤で接着固定するのが好ましい。 A first light guide plate 506 between the second light guide plate 606 is preferably bonded by light transparent adhesive having a refractive index comparable to those light guide plate.

【0028】また、図に示すように、第2の導光板60 Further, as shown in FIG, the second light guide plate 60
6から漏れる光を、第3の導光板706に導くことで第3の被照明部702の照明に再利用してもよい。 The light leaking from 6, may be reused for illuminating the third illuminated portion 702 by directing a third light guide plate 706.

【0029】図の例では、第1及び第3の被照明部50 [0029] In the example of Figure, the first and third of the illuminated portion 50
2、702が透過型被照明部で、第2の被照明部602 2,702 is a transmission illuminated portion, the second illuminated portion 602
が反射型被照明部である。 There is a reflective illuminated portion. 第2の導光板606は、その両側に設けられた屈曲部609、611を介して第1及び第3の導光板506、706に接続され、これにより、第1〜3の被照明部502、602、702が略同一平面内に位置するようにして、これら被照明部の視差を減らすようにしてある。 Second light guide plate 606 is connected to the first and third light guide plate 506,706 through the bent portion 609 and 611 provided on both sides thereof, thereby, the first to third illuminated portion 502, 602 and 702 thereof is positioned in substantially the same plane, it is to reduce the disparity of the illuminated portion.

【0030】(第5の実施形態)図5(a),(b)はそれぞれ、本発明の第5の実施形態に係る照明装置を備えた電子機器すなわち電気ポットの外観を示す側面図及び正面図であり、図5(c)は、図5(a)中の点線で囲まれる領域Aの拡大断面図である。 [0030] (Fifth Embodiment) FIG 5 (a), (b), respectively, the fifth side view and a front showing the external appearance of the electronic device i.e. an electric kettle with a lighting device according to an embodiment of the present invention a diagram, Fig. 5 (c) is an enlarged sectional view of a region a surrounded by a dotted line in FIG. 5 (a). 図の例では、電気ポットは、機器の種々の情報を表示するための液晶パネルからなる第1の被照明部802と、操作ボタンである第2の被照明部902とを備え、第1の実施形態と同様に操作ボタンの押下により液晶パネルの表示状態を制御するようにしてある。 In the illustrated example, electric kettle, a first illuminated portion 802 comprising a liquid crystal panel for displaying various kinds of information of the apparatus, and a second of the illuminated portion 902 is an operation button, the first It is so as to control the display state of the liquid crystal panel by pressing the similarly operating button and embodiments. また、第1の導光板806と第2 Further, the first light guide plate 806 second
の導光板906とは直接接続されている。 The light guide plate 906 are directly connected. したがって、 Therefore,
第1の導光板806の片面に対向して配置された光源8 The first light source 8 which are disposed opposite to one surface of the light guide plate 806
14からの光を第1の被照明部802の照明のみならず、第2の被照明部902の照明にも利用できる。 The light from 14 not only illuminating the first illuminated portion 802, can also be used to illuminate the second illuminated portion 902.

【0031】図の例では、第1及び第2の被照明部80 [0031] In the example of Figure, the first and second illuminated portion 80
6、906ともに透過型被照明部であり、第1の導光板806は、屈曲部809を介して第2の導光板906に接続されている。 6,906 are both transmissive illuminated portion, the first light guide plate 806 is connected to the second light guide plate 906 through the bent portion 809. このように、第1及び第2の被照明部806、906の視差を減らすために屈曲部809を介して導光板806、906同士を接続する場合、第1及び第2の被照明部806、906ともに透過型被照明部であれば、第4の実施形態に比べて、屈曲部809の他の部分に対してなす角度が小さくてすみ、したがって、 Thus, the first and second case of connecting the light guide plate 806,906 to each other via the bent portion 809 in order to reduce the disparity of the illuminated portion 806,906, the first and second illuminated portion 806, 906 if both transmission illuminated portion, as compared with the fourth embodiment, be small the angle formed with respect to other portions of the bent portion 809, thus,
屈曲部から外側に漏れる光の量が少ない。 The amount of light leaking to the outside from the bent portion is small.

【0032】 [0032]

【発明の効果】本発明に係る照明装置によれば、被照明部の照明に用いる導光板の側面から漏れた光を、二次光源として別の被照明部の照明に利用することにより、単一の光源で複数の被照明部を照明することができ、各被照明部に対応して光源を個別に設ける場合に比べて省電力化を図ることができる。 According to the lighting device according to the present invention, by utilizing the light leaking from the side surface of the light guide plate used in the illumination of the illuminated portion, to another illumination of the illuminated portion as a secondary light source, a single can illuminate the plurality of illuminated portions in one of the light source, it is possible to reduce power consumption as compared with the case where corresponding to the illuminated portion sources individually provided with.

【0033】また、第1の被照明部を照明する第1の導光板の側面から漏れた光を第2の被照明部を照明する第2の導光板に導くために、反射部材や光ファイバを用いることで、被照明部同士の相対角度を任意に設定できる。 Further, in order to guide the light leaking from the first light guide plate side surface of which illuminates the first illuminated portion to the second light guide plate to illuminate the second illuminated portion, the reflecting member and the optical fiber by using, it can be arbitrarily set the relative angle between the illuminated portion. したがって、被照明部として反射型、透過型被照明部のいずれかを選択する際の自由度が大きい。 Thus, a large degree of freedom in selecting reflective, either a transmission type illuminated section as an illuminated portion.

【0034】さらに、第1の導光板の第2の側面から出射した光を第2の導光板の第3の側面に導く位置と、第1の導光板の第2の側面から出射した光を再度第1の導光板に導く位置との間で切換可能な反射部材を設けることにより、必要に応じて、第2の被照明部の照明をオン・オフしたり、第1の被照明部の光の利用効率を必要に応じて高めることができる。 Furthermore, a position for guiding the light emitted from the second side of the first light guide plate to the third aspect of the second light guide plate, the light emitted from the second side of the first light guide plate by providing a switchable reflective element between a position for guiding back the first light guide plate, if necessary, or to turn on and off the illumination of the second illuminated portion, the first illuminated portion the light utilization efficiency can be increased if necessary.

【0035】加えて、本発明に係る照明装置は、上述した携帯電話、電気ポット以外にも例えば電子ジャー、オーディオ機器、PDAなど複数の被照明部を備えた種々の表示装置並びに電子機器に対して適用できる。 [0035] In addition, the lighting apparatus according to the present invention, the above-mentioned mobile phone, to be for example electronic jar than the electric kettle, audio equipment, for various display devices and electronic equipment having a plurality of illuminated unit such as a PDA It can be applied Te.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】 図1(a)は、本発明の第1の実施形態に係る照明装置を備えた携帯電話の外観を示す上面図、図1 1] Fig. 1 (a) is a top view showing an appearance of a mobile phone with a lighting device according to a first embodiment of the present invention, FIG. 1
(b)は、携帯電話内部の断面図、図1(c)は、第1 (B) is a mobile phone inside the cross-sectional view, FIG. 1 (c), first
の導光板の上面の拡大断面図。 Enlarged sectional view of the upper surface of the light guide plate.

【図2】 本発明の第2の実施形態に係る照明装置を備えた表示装置の断面図。 Sectional view of a display device including an illumination device according to a second embodiment of the present invention; FIG.

【図3】 図3(a),(b)はともに、本発明の第3 [3] FIG. 3 (a), (b) Both the third invention
の実施形態に係る照明装置を備えた表示装置の断面図であり、図3(a)は、第1及び第2の被照明部ともに照明する場合、図3(b)は、第1の被照明部のみを照明する場合を示す。 Is a cross-sectional view of a display device including the lighting device according to the embodiment, FIG. 3 (a), when illuminating the first and both second illuminated portion, FIG. 3 (b), the first of the It shows the case for illuminating only the lighting unit.

【図4】 本発明の第4の実施形態に係る照明装置を備えた表示装置の断面図。 Sectional view of a display device including an illumination device according to a fourth embodiment of the present invention; FIG.

【図5】 図5(a),(b)はそれぞれ、本発明の第5の実施形態に係る照明装置を備えた電気ポットの外観を示す側面図及び正面図であり、図5(c)は、図5 [5] FIG. 5 (a), (b), respectively, a side view and a front view showing an appearance of a fifth electric kettle equipped with a lighting device according to an embodiment of the present invention, and FIG. 5 (c) , as shown in FIG. 5
(a)中の領域Aの拡大断面図。 Enlarged sectional view of the region A in (a).

【符号の説明】 DESCRIPTION OF SYMBOLS

2:第1の被照明部、4:第2の被照明部、6:第1の導光板、8:第2の導光板、14:光源、16:反射部材、116:光ファイバ。 2: the first of the illuminated portion, 4: second illuminated portion, 6: first light guide plate, 8: second light guide plate, 14: light source, 16: reflecting member 116: optical fiber.

フロントページの続き (51)Int.Cl. 7識別記号 FI テーマコート゛(参考) // F21Y 101:02 F21Y 101:02 103:00 103:00 105:00 105:00 (72)発明者 清水 佳恵 大阪府大阪市中央区安土町二丁目3番13号 大阪国際ビル ミノルタ株式会社内 Fターム(参考) 2H038 AA55 BA03 BA06 2H091 FA14X FA14Z FA23X FA23Z FA24X FA24Z FA41X FA41Z LA16 LA30 5G435 BB03 BB04 BB05 BB12 BB15 BB16 EE22 EE27 FF03 FF06 FF08 GG23 GG24 GG25 . Of the front page Continued (51) Int.Cl 7 identification mark FI theme Court Bu (Reference) // F21Y 101: 02 F21Y 101 : 02 103: 00 103: 00 105: 00 105: 00 (72) inventor Yoshie Shimizu Osaka Cabinet Office, Chuo-ku, Osaka Azuchi-chome No. 3 No. 13 Osaka International building Minolta Co., Ltd. in the F-term (reference) 2H038 AA55 BA03 BA06 2H091 FA14X FA14Z FA23X FA23Z FA24X FA24Z FA41X FA41Z LA16 LA30 5G435 BB03 BB04 BB05 BB12 BB15 BB16 EE22 EE27 FF03 FF06 FF08 GG23 GG24 GG25

Claims (14)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 第1の側面及び第2の側面を備えた第1 1. A first having a first side and a second side
    の導光板と、 前記第1の導光板の第1の側面に対向して配置され、該側面を介して第1の導光板に光を入射する光源とを有する照明装置において、 前記第1の導光板の主面から出射される光を利用して第1の被照明部を照明し、 前記照明装置はさらに、第3の側面を備えた第2の導光板を有し、 第1の導光板の第2の側面から出射した光を、第3の側面を介して第2の導光板に導き、第2の導光板の主面から出射される光を利用して第2の被照明部を照明することを特徴する照明装置。 And the light guide plate, disposed opposite to the first side of the first light guide plate, the illumination device having a light source which light enters the first light guide plate through the side surface, the first first illuminates an illuminated portion by utilizing the light emitted from the main surface of the light guide plate, the illuminating device further includes a second light guide plate having a third aspect, the first conductive the light emitted from the second side of the optical plate, via a third aspect led to the second light guide plate, the second illuminated portion by utilizing the light emitted from the main surface of the second light guide plate lighting apparatus characterized by illuminating the.
  2. 【請求項2】 第1の導光板の第2の側面から出射した光を第2の導光板の第3の側面に導くために、前記第1 2. In order to guide the light emitted from the second side of the first light guide plate to the third aspect of the second light guide plate, the first
    の導光板の第2の側面と前記第2の導光板の第3の側面との間に反射部材をさらに設けることを特徴とする請求項1の照明装置。 Lighting apparatus according to claim 1, characterized in further providing a reflecting member between the second side surface of the light guide plate and the third side surface of the second light guide plate.
  3. 【請求項3】 第1の導光板の第2の側面から出射した光を第2の導光板の第3の側面に導くために、前記第1 3. To guide the light emitted from the second side of the first light guide plate to the third aspect of the second light guide plate, the first
    の導光板の第2の側面と前記第2の導光板の第3の側面との間を光ファイバで接続することを特徴とする請求項1の照明装置。 Lighting apparatus according to claim 1, characterized in that an optical fiber which connects between the between the second side surface of the light guide plate and the third side surface of the second light guide plate.
  4. 【請求項4】 第1の導光板の第2の側面から出射した光を第2の導光板の第3の側面に導く第1の位置と、第1の導光板の第2の側面から出射した光を再度第1の導光板に導く第2の位置との間で切換可能な反射部材をさらに設けることを特徴とする請求項1の照明装置。 4. A first position for guiding the light emitted from the second side of the first light guide plate to the third aspect of the second light guide plate, emitted from the second side of the first light guide plate lighting apparatus according to claim 1, characterized by further providing the switchable reflecting member and a second position for guiding the first light guide plate again light.
  5. 【請求項5】 第1の導光板の第2の側面から出射した光を第2の導光板の第3の側面に導くために、前記第1 5. To guide the light emitted from the second side of the first light guide plate to the third aspect of the second light guide plate, the first
    の導光板の第2の側面と前記第2の導光板の第3の側面との間に第3の導光板が接続され、 前記第3の導光板は、前記第1又は第2の導光板のいずれかと一体化して形成され、 前記第3の導光板は、一体化して形成された前記第1又は第2の導光板に対し所定の角度をなしていることを特徴とする請求項1の照明装置。 A third light guide plate connected between the second side surface of the light guide plate and the third side surface of the second light guide plate, wherein the third light guide plate, wherein the first or the second light guide plate the integrally formed with either the third light guide plate of claim 1, characterized in that at an angle relative to the first or second light guide plate is formed integrally the lighting device.
  6. 【請求項6】 前記第1の導光板が第1の被照明部を照明する主面と、前記第2の導光板が第2の被照明部を照明する主面とが、第1の導光板から第2の導光板へ導かれる光の進行方向に対し異なる側に設定されていることを特徴とする請求項1〜5のいずれかに記載の照明装置。 Wherein said first light guide plate and the main surface to illuminate the first illuminated portion, the principal surface of the second light guide plate to illuminate the second illuminated portion, a first conductive lighting device according to any one of claims 1 to 5, characterized in that it is set to a different side to the traveling direction of the light guided from the optical plate to the second light guide plate.
  7. 【請求項7】 前記第1の導光板が第1の被照明部を照明する主面と、前記第2の導光板が第2の被照明部を照明する主面とが、第1の導光板から第2の導光板へ導かれる光の進行方向に対し同じ側に設定されていることを特徴とする請求項1〜5のいずれかに記載の照明装置。 7. A main surface of the first light guide plate to illuminate the first illuminated portion, the principal surface of the second light guide plate to illuminate the second illuminated portion, a first conductive lighting device according to any one of claims 1 to 5, characterized in that it is set on the same side with respect to the traveling direction of the light guided from the optical plate to the second light guide plate.
  8. 【請求項8】 請求項1〜4のいずれかに記載の照明装置と、前記第1及び第2の被照明部として、それぞれ第1及び第2の表示素子とを備えた表示装置。 An illumination device according to any one of claims 8 claims 1 to 4, as the first and second illuminated portion, a display device that includes a first and second display elements, respectively.
  9. 【請求項9】 前記第1及び第2の表示素子がともに透過型表示素子であることを特徴とする請求項8の表示装置。 9. The display device according to claim 8, wherein the first and second display elements are both transmissive display device.
  10. 【請求項10】 前記第1及び第2の表示素子がともに反射型表示素子であることを特徴とする請求項8の表示装置。 10. A display device according to claim 8, wherein the first and second display elements are both reflection type display device.
  11. 【請求項11】 請求項4に記載の照明装置と、前記第1の被照明部としての透過型表示素子と、前記第2の被照明部としての反射型表示素子とを備えた表示装置。 11. A lighting device as recited in claim 4, wherein the first transmission-type display element and the second display device and a reflection type display device as the illuminated section as an object to be illuminated portion.
  12. 【請求項12】 請求項5に記載の照明装置と、前記第1又は第2の被照明部の一方としての透過型表示素子と、他方としての反射型表示素子とを備えた表示装置。 12. A lighting device as recited in claim 5, a transmission type display element as one of the first or second of the illuminated portion, a display device and a reflection type display device as the other.
  13. 【請求項13】 請求項1〜7のいずれかに記載の照明装置を用いた電子機器。 13. An electronic apparatus using the illumination device according to any one of claims 1 to 7.
  14. 【請求項14】 請求項8〜12のいずれかに記載の表示装置を用いた電子機器。 14. An electronic apparatus using the display device according to any one of claims 8-12.
JP2001038380A 2001-02-15 2001-02-15 Illumination device, display device, and electronic equipment Pending JP2002245835A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001038380A JP2002245835A (en) 2001-02-15 2001-02-15 Illumination device, display device, and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001038380A JP2002245835A (en) 2001-02-15 2001-02-15 Illumination device, display device, and electronic equipment

Publications (1)

Publication Number Publication Date
JP2002245835A true JP2002245835A (en) 2002-08-30

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US8045252B2 (en) 2004-02-03 2011-10-25 Qualcomm Mems Technologies, Inc. Spatial light modulator with integrated optical compensation structure
US8049951B2 (en) 2008-04-15 2011-11-01 Qualcomm Mems Technologies, Inc. Light with bi-directional propagation
US8061882B2 (en) 2006-10-06 2011-11-22 Qualcomm Mems Technologies, Inc. Illumination device with built-in light coupler
US8068710B2 (en) 2007-12-07 2011-11-29 Qualcomm Mems Technologies, Inc. Decoupled holographic film and diffuser
US8107155B2 (en) 2006-10-06 2012-01-31 Qualcomm Mems Technologies, Inc. System and method for reducing visual artifacts in displays
US8111446B2 (en) 2004-09-27 2012-02-07 Qualcomm Mems Technologies, Inc. Optical films for controlling angular characteristics of displays
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US8346048B2 (en) 2008-05-28 2013-01-01 Qualcomm Mems Technologies, Inc. Front light devices and methods of fabrication thereof
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US8654061B2 (en) 2008-02-12 2014-02-18 Qualcomm Mems Technologies, Inc. Integrated front light solution
US8848294B2 (en) 2010-05-20 2014-09-30 Qualcomm Mems Technologies, Inc. Method and structure capable of changing color saturation
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US8902484B2 (en) 2010-12-15 2014-12-02 Qualcomm Mems Technologies, Inc. Holographic brightness enhancement film
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US8979349B2 (en) 2009-05-29 2015-03-17 Qualcomm Mems Technologies, Inc. Illumination devices and methods of fabrication thereof
US9019183B2 (en) 2006-10-06 2015-04-28 Qualcomm Mems Technologies, Inc. Optical loss structure integrated in an illumination apparatus
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US9019590B2 (en) 2004-02-03 2015-04-28 Qualcomm Mems Technologies, Inc. Spatial light modulator with integrated optical compensation structure
US8045252B2 (en) 2004-02-03 2011-10-25 Qualcomm Mems Technologies, Inc. Spatial light modulator with integrated optical compensation structure
US8111445B2 (en) 2004-02-03 2012-02-07 Qualcomm Mems Technologies, Inc. Spatial light modulator with integrated optical compensation structure
US7880954B2 (en) 2004-03-05 2011-02-01 Qualcomm Mems Technologies, Inc. Integrated modulator illumination
US7986451B2 (en) 2004-09-27 2011-07-26 Qualcomm Mems Technologies, Inc. Optical films for directing light towards active areas of displays
US7719747B2 (en) 2004-09-27 2010-05-18 Qualcomm Mems Technologies, Inc. Method and post structures for interferometric modulation
US7710632B2 (en) 2004-09-27 2010-05-04 Qualcomm Mems Technologies, Inc. Display device having an array of spatial light modulators with integrated color filters
US7750886B2 (en) 2004-09-27 2010-07-06 Qualcomm Mems Technologies, Inc. Methods and devices for lighting displays
EP1640764A3 (en) * 2004-09-27 2006-06-07 Idc, Llc Systems and methods for illuminating interferometric modulator display
JP2009244855A (en) * 2004-09-27 2009-10-22 Idc Llc System and method for illuminating interferometric modulator display
US7807488B2 (en) 2004-09-27 2010-10-05 Qualcomm Mems Technologies, Inc. Display element having filter material diffused in a substrate of the display element
US7813026B2 (en) 2004-09-27 2010-10-12 Qualcomm Mems Technologies, Inc. System and method of reducing color shift in a display
US8111446B2 (en) 2004-09-27 2012-02-07 Qualcomm Mems Technologies, Inc. Optical films for controlling angular characteristics of displays
US7349141B2 (en) 2004-09-27 2008-03-25 Idc, Llc Method and post structures for interferometric modulation
EP2259123A1 (en) * 2004-09-27 2010-12-08 Qualcomm Mems Technologies, Inc. Systems and methods for illuminating interferometric modulator display
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EP2264509A1 (en) * 2004-09-27 2010-12-22 Qualcomm Mems Technologies, Inc. Systems and methods for illuminating interferometric modulator display
EP2264510A1 (en) * 2004-09-27 2010-12-22 Qualcomm Mems Technologies, Inc. Systems and methods for illuminating interferometric modulator display
US8040588B2 (en) 2004-09-27 2011-10-18 Qualcomm Mems Technologies, Inc. System and method of illuminating interferometric modulators using backlighting
EP2259122A1 (en) * 2004-09-27 2010-12-08 Qualcomm Mems Technologies, Inc. Systems and methods for illuminating interferometric modulator display
US7933475B2 (en) 2006-02-17 2011-04-26 Qualcomm Mems Technologies, Inc. Method and apparatus for providing back-lighting in a display device
US7766498B2 (en) 2006-06-21 2010-08-03 Qualcomm Mems Technologies, Inc. Linear solid state illuminator
US7845841B2 (en) 2006-08-28 2010-12-07 Qualcomm Mems Technologies, Inc. Angle sweeping holographic illuminator
US7855827B2 (en) 2006-10-06 2010-12-21 Qualcomm Mems Technologies, Inc. Internal optical isolation structure for integrated front or back lighting
US8872085B2 (en) 2006-10-06 2014-10-28 Qualcomm Mems Technologies, Inc. Display device having front illuminator with turning features
US9019183B2 (en) 2006-10-06 2015-04-28 Qualcomm Mems Technologies, Inc. Optical loss structure integrated in an illumination apparatus
US8061882B2 (en) 2006-10-06 2011-11-22 Qualcomm Mems Technologies, Inc. Illumination device with built-in light coupler
US8107155B2 (en) 2006-10-06 2012-01-31 Qualcomm Mems Technologies, Inc. System and method for reducing visual artifacts in displays
US7864395B2 (en) 2006-10-27 2011-01-04 Qualcomm Mems Technologies, Inc. Light guide including optical scattering elements and a method of manufacture
US7777954B2 (en) 2007-01-30 2010-08-17 Qualcomm Mems Technologies, Inc. Systems and methods of providing a light guiding layer
EP2025994A1 (en) * 2007-03-30 2009-02-18 Hitachi Chemical Company, Ltd. Optical coupling member and display device
EP2025994A4 (en) * 2007-03-30 2013-07-31 Hitachi Chemical Co Ltd Optical coupling member and display device
US7733439B2 (en) 2007-04-30 2010-06-08 Qualcomm Mems Technologies, Inc. Dual film light guide for illuminating displays
JP2009059543A (en) * 2007-08-30 2009-03-19 Citizen Electronics Co Ltd Light guide plate, and electronic apparatus
US8798425B2 (en) 2007-12-07 2014-08-05 Qualcomm Mems Technologies, Inc. Decoupled holographic film and diffuser
US8068710B2 (en) 2007-12-07 2011-11-29 Qualcomm Mems Technologies, Inc. Decoupled holographic film and diffuser
US7949213B2 (en) 2007-12-07 2011-05-24 Qualcomm Mems Technologies, Inc. Light illumination of displays with front light guide and coupling elements
US9448353B2 (en) 2008-01-30 2016-09-20 Qualcomm Mems Technologies, Inc. Illumination device having a tapered light guide
US9395479B2 (en) 2008-01-30 2016-07-19 Qualcomm Mems Technologies, Inc. Illumination device having a tapered light guide
US9244212B2 (en) 2008-01-30 2016-01-26 Qualcomm Mems Technologies, Inc. Illumination device having a tapered light guide
US8040589B2 (en) 2008-02-12 2011-10-18 Qualcomm Mems Technologies, Inc. Devices and methods for enhancing brightness of displays using angle conversion layers
US8654061B2 (en) 2008-02-12 2014-02-18 Qualcomm Mems Technologies, Inc. Integrated front light solution
US8049951B2 (en) 2008-04-15 2011-11-01 Qualcomm Mems Technologies, Inc. Light with bi-directional propagation
US8346048B2 (en) 2008-05-28 2013-01-01 Qualcomm Mems Technologies, Inc. Front light devices and methods of fabrication thereof
US8172417B2 (en) 2009-03-06 2012-05-08 Qualcomm Mems Technologies, Inc. Shaped frontlight reflector for use with display
US9121979B2 (en) 2009-05-29 2015-09-01 Qualcomm Mems Technologies, Inc. Illumination devices and methods of fabrication thereof
US8979349B2 (en) 2009-05-29 2015-03-17 Qualcomm Mems Technologies, Inc. Illumination devices and methods of fabrication thereof
US8848294B2 (en) 2010-05-20 2014-09-30 Qualcomm Mems Technologies, Inc. Method and structure capable of changing color saturation
US8902484B2 (en) 2010-12-15 2014-12-02 Qualcomm Mems Technologies, Inc. Holographic brightness enhancement film
JP3184060U (en) * 2013-03-15 2013-06-13 稔 田野口 Closely attached may planar mask according to the shape of the face
JP2015049477A (en) * 2013-09-04 2015-03-16 株式会社タテイシ広美社 Display device

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