WO2009100610A1 - Plaque de guidage de la lumière destinée à une émission uniforme de la lumière - Google Patents

Plaque de guidage de la lumière destinée à une émission uniforme de la lumière Download PDF

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Publication number
WO2009100610A1
WO2009100610A1 PCT/CN2008/070212 CN2008070212W WO2009100610A1 WO 2009100610 A1 WO2009100610 A1 WO 2009100610A1 CN 2008070212 W CN2008070212 W CN 2008070212W WO 2009100610 A1 WO2009100610 A1 WO 2009100610A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
guiding surface
guiding
light source
guide plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2008/070212
Other languages
English (en)
Chinese (zh)
Inventor
Yisong Bai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Memtech Electronic Products Co Ltd
Memtech International Ltd
Original Assignee
Dongguan Memtech Electronic Products Co Ltd
Memtech International Ltd
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 Dongguan Memtech Electronic Products Co Ltd, Memtech International Ltd filed Critical Dongguan Memtech Electronic Products Co Ltd
Priority to CN2008900000781U priority Critical patent/CN201910844U/zh
Priority to PCT/CN2008/070212 priority patent/WO2009100610A1/fr
Publication of WO2009100610A1 publication Critical patent/WO2009100610A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/22—Illumination; Arrangements for improving the visibility of characters on dials

Definitions

  • the present invention relates to a light guide plate, and more particularly to a light guide plate suitable for use in buttons for electronic/communication products.
  • the light source of the button area of the mobile phone usually uses 6 ⁇ 12 pieces of top light LE
  • Fig. 1 the design of the early light source 1 is shown, wherein the light source 1 is directly Placed under the button 2, the light will be scattered directly through the button, and the uniform light effect cannot be achieved; as shown in Fig.
  • the backlight source with the TOP-LED light source and the light guide plate acting as a button on the existing product is shown.
  • the light source 1 is placed in the recess 3a of the light guide plate 3.
  • the recess 3a has a meandering shape. Since the light source has a large illumination angle and the light is totally scattered, the overall brightness and uniformity cannot be satisfactorily achieved.
  • the present invention is directed to the absence of the above prior art, and the main object is to provide a light guide plate having a good light balance effect.
  • a light-guiding plate having a good light-homogenizing effect comprising a plate body having a high light transmittance, wherein the plate body is provided with a groove for accommodating the light source, the inner wall of the groove is composed of two sides and the two sides
  • the top surface is formed by at least a first guiding surface, a second guiding surface and a third guiding surface, wherein the first guiding surface and the third guiding surface are connected at an angle Corresponding to the two sides, and forming a first angle with the side respectively.
  • the second guiding surface is a flat surface.
  • the second guiding surface is a bending surface, which comprises two inclined surfaces, and the two inclined surfaces form a second angle.
  • the above plate is made of PC or acrylic material.
  • the advantage of the utility model is that it establishes a plurality of guiding surfaces arranged at an angled angle and used for light reflection at a position where the light source is placed, so as to concentrate the light source and guide the light source to the light source by multiple reflections.
  • the desired position which in turn has a uniform illumination effect, makes the light softer.
  • Figure 1 is prior art (a);
  • Figure 2 is prior art (2)
  • Figure 3 is an embodiment (I) of the present invention.
  • Figure 4 is an embodiment (2) of the present invention.
  • the utility model relates to a light guide plate with good light balance effect, which comprises a plate body 10 with high light transmittance, and the plate body 10 is made of PC or acrylic material.
  • a recess 11 for accommodating the light source 20 is disposed on the plate body 10.
  • the inner wall of the recess 11 is formed by two side faces 11a and a top surface connected to the two side faces 11a, the top face being at least guided by the first guide
  • the first guiding surface 11b and the third guiding surface l id are connected to the two side surfaces 11a.
  • the first guiding surface 11b and the third guiding surface l id can be used as corresponding reflecting surfaces, and the light source can be concentrated and the light source can be multi-reflected to be guided to a desired position, so that the button is evenly distributed. Glowing.
  • another embodiment of the present invention is another embodiment of the present invention, which is different from the above embodiment in that the second guiding surface 11c is a curved surface.
  • the second inclined angle ⁇ 2 is formed between the two inclined surfaces, and the second angle ⁇ 2 is in the range of the second angle ⁇ 2, which is also set according to the calculation light exit angle of the LED;
  • the second guiding surface 11c is different from the above embodiment, the remaining two sides l la, the first guiding surface l lb, such as the plate body 10, the groove 11 and the groove 11
  • the structure of the third guiding surface l id is the same, and no further comment is given here.
  • the design of the utility model focuses on establishing a plurality of guiding surfaces arranged at an angle and for reflecting light at a position where the light source is placed, so as to concentrate the light source and guide the light source to the ground by multiple reflections.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

L'invention concerne une plaque de guidage de la lumière destinée à une émission uniforme de la lumière comportant un corps de plaque (10) présentant un facteur de transmission de la lumière élevé. Un renfoncement (11), destiné à recevoir une source lumineuse (20), est disposé sur le corps de plaque (10). La paroi intérieure du renfoncement (11) se compose de deux faces latérales (11a) et d'une surface supérieure reliée aux faces latérales (11a). La surface supérieure est formée d'au moins une première surface de guidage (11b), une deuxième surface de guidage (11c) et une troisième surface de guidage (11d), qui sont reliées dans cet ordre et ne sont pas alignées les unes avec les autres. La première surface de guidage (11b) et la troisième surface de guidage (11d) sont reliées de manière correspondante aux faces latérales (11a) et forment des premiers angles (β1) avec les faces latérales (11a), respectivement.
PCT/CN2008/070212 2008-01-30 2008-01-30 Plaque de guidage de la lumière destinée à une émission uniforme de la lumière Ceased WO2009100610A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2008900000781U CN201910844U (zh) 2008-01-30 2008-01-30 均匀发光的导光板
PCT/CN2008/070212 WO2009100610A1 (fr) 2008-01-30 2008-01-30 Plaque de guidage de la lumière destinée à une émission uniforme de la lumière

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2008/070212 WO2009100610A1 (fr) 2008-01-30 2008-01-30 Plaque de guidage de la lumière destinée à une émission uniforme de la lumière

Publications (1)

Publication Number Publication Date
WO2009100610A1 true WO2009100610A1 (fr) 2009-08-20

Family

ID=40956627

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2008/070212 Ceased WO2009100610A1 (fr) 2008-01-30 2008-01-30 Plaque de guidage de la lumière destinée à une émission uniforme de la lumière

Country Status (2)

Country Link
CN (1) CN201910844U (fr)
WO (1) WO2009100610A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2629171A3 (fr) * 2012-02-14 2014-03-12 Samsung Electronics Co., Ltd Dispositif d'éclairage de clavier pour terminal portable

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104678480A (zh) * 2014-12-31 2015-06-03 苏州通尔泰新材料科技有限公司 导光膜以及具有该导光膜的手机
CN104730910A (zh) * 2015-02-15 2015-06-24 深圳市华星光电技术有限公司 智能手表和弧形液晶屏
CN110312017A (zh) * 2019-06-30 2019-10-08 Oppo广东移动通信有限公司 电子装置和电子装置的控制方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2658760Y (zh) * 2003-09-08 2004-11-24 三和企业股份有限公司 逆光式导光薄板
CN1227561C (zh) * 2002-09-12 2005-11-16 瀚宇彩晶股份有限公司 平面光源装置及液晶显示器
CN1782819A (zh) * 2004-12-02 2006-06-07 精工爱普生株式会社 照明装置和导光板
CN1893704A (zh) * 2005-06-28 2007-01-10 三星电子株式会社 用于便携式终端的小键盘组件
CN1909569A (zh) * 2005-08-05 2007-02-07 鸿富锦精密工业（深圳）有限公司 按键导光板
CN101101408A (zh) * 2006-07-07 2008-01-09 株式会社日立显示器 液晶显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1227561C (zh) * 2002-09-12 2005-11-16 瀚宇彩晶股份有限公司 平面光源装置及液晶显示器
CN2658760Y (zh) * 2003-09-08 2004-11-24 三和企业股份有限公司 逆光式导光薄板
CN1782819A (zh) * 2004-12-02 2006-06-07 精工爱普生株式会社 照明装置和导光板
CN1893704A (zh) * 2005-06-28 2007-01-10 三星电子株式会社 用于便携式终端的小键盘组件
CN1909569A (zh) * 2005-08-05 2007-02-07 鸿富锦精密工业（深圳）有限公司 按键导光板
CN101101408A (zh) * 2006-07-07 2008-01-09 株式会社日立显示器 液晶显示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2629171A3 (fr) * 2012-02-14 2014-03-12 Samsung Electronics Co., Ltd Dispositif d'éclairage de clavier pour terminal portable
US8777433B2 (en) 2012-02-14 2014-07-15 Samsung Electronics Co., Ltd. Keypad lighting device for portable terminal

Also Published As

Publication number Publication date
CN201910844U (zh) 2011-07-27

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