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WO2007118365A1 - Structure modulaire de rétroéclairage à écran à cristaux liquides - Google Patents

Structure modulaire de rétroéclairage à écran à cristaux liquides Download PDF

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Publication number
WO2007118365A1
WO2007118365A1 PCT/CN2006/000729 CN2006000729W WO2007118365A1 WO 2007118365 A1 WO2007118365 A1 WO 2007118365A1 CN 2006000729 W CN2006000729 W CN 2006000729W WO 2007118365 A1 WO2007118365 A1 WO 2007118365A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
led
lcd
conducting
blind hole
Prior art date
Application number
PCT/CN2006/000729
Other languages
English (en)
Chinese (zh)
Inventor
Tsung-Wen Chan
Original Assignee
Topson Optoelectronics Semi Co
Tsung-Wen Chan
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 Topson Optoelectronics Semi Co, Tsung-Wen Chan filed Critical Topson Optoelectronics Semi Co
Priority to PCT/CN2006/000729 priority Critical patent/WO2007118365A1/fr
Publication of WO2007118365A1 publication Critical patent/WO2007118365A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
    • H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
    • H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
    • H01L25/075—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00
    • H01L25/0753—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00 the devices being arranged next to each other
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
    • H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
    • H01L2224/42—Wire connectors; Manufacturing methods related thereto
    • H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
    • H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
    • H01L2224/4805—Shape
    • H01L2224/4809—Loop shape
    • H01L2224/48091—Arched
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/855—Optical field-shaping means, e.g. lenses
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
    • H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
    • H10H20/80—Constructional details
    • H10H20/85—Packages
    • H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls

Definitions

  • the invention relates to a backlighting device S for an LCD, in particular to a backlighting device using an LED as a light source.
  • the current LCD backlighting device is mainly based on A-light CCFL (Cold Cathode Lamp).
  • CCFL Cold Cathode Lamp
  • CCPL Cold Cathode Lamp
  • the size of the LCD is also increased.
  • the required 1 ⁇ 4 ⁇ 4 drive 3 ⁇ 4 way must also be increased.
  • most CCFLs must be serial/parallel.
  • CCFL has a short life span, which affects the life of the LCD, plus its relatively power consumption, and the 3 ⁇ 4 substance contained in the CCFL, no doubt about environmental protection; 3 ⁇ 4-type injury.
  • LEDs are used as the source of LCD backlights. They are installed on the LCD side or on both sides of the S number: LY3). When the power is turned on, the LED light source is projected on the LCD. The image on the LCD is displayed. Generally, the light of the LED is not uniformly scattered, but is concentrated in a small range. An area on the LCD that uses the LED to project light is particularly bright, and a significant brightness decay can be seen around the bright area.
  • some people use densely-arranged LED squares to make the adjacent two LEDs adjacent to each other, reducing the dim area, so that not only the cost, but also the power consumption, without the substantial increase in brightness. Sexual help, and the problem of uneven light on the LCD still exists, so it is not a good solution; ! £ ⁇ .
  • the main object of the present invention is to provide an improved structure of an LCD backlight module.
  • the LED is the illumination source, and the LED has a curvature to ensure that the LED light is evenly transmitted to the LCD.
  • Another object of the present invention is to provide an LCD 3 ⁇ 4f optical module improved structure, a use; 3 ⁇ 4 ⁇ 3 ⁇ 4 degree white LED as a light source, so that the LCD has high brightness, good picture quality, and uses long life advantage.
  • a backlight correction structure capable of achieving the above object which mainly comprises one or more LEDs, the LED is disposed on the guiding rod, and the surface of the guiding rod is provided with 5IT conductive sheets, and the conductive sheets are used for connecting Driving circuit, and having a cyan hole on the guiding rod, the luminous point of the LED is solidified in the pupil, and the wire of the luminous point is extended to two 3 ⁇ 4 conductive sheets, and then the same crystal is struck
  • the completed blind hole concave casting epoxy forms a light guiding lens, and the light guiding lens has a curved shape to ensure uniform scattering of light of the LED.
  • the light of the light-emitting point is transmitted through the pupil ,, and is transmitted to the LCD by the light-transmitting platelet having the curvature, so that each LED can form a uniform brightness light-emitting surface on the LCD, so that the LCD 3 ⁇ 4 is more comfortable.
  • the invention has the advantages that the light of the I D can be uniformly scattered onto the LCD to form a uniform light-emitting surface of 33 ⁇ 4 degrees, so that the LCD has the advantages of high brightness, good image quality and long service life. Turn over
  • Figure 1 is a perspective view of a single LED structure of the present invention
  • FIG. 2 is a perspective view of a guide rod and an LED structure of the present invention
  • Figure 3 is a plan view showing the structure of the guide rod and the LED of the present invention.
  • Figure 4 is a front view of the guide rod and LED structure of the wood invention: 1, LED, 11, luminous point, 12, wire, 13, light guide lens, 2, guide, 21, ⁇ film, 22, hundred holes
  • the wood invention provides an improved structure of an LCD backlight module.
  • the optical module includes a guide rod 2, and a plurality of LEDs 1 are disposed on the guide rod, so that each LED 1 can project light to the LCD ( The light is not partially shown, and the light of each LED 1 can be partially! £ ⁇ 4 to ensure that the light is completely distributed on the LCD.
  • the surface of the guiding rod 1 is provided with a conductive sheet 21 for connecting a driving circuit (shown) to provide illumination and control of the LED 1 :
  • the guiding rod 2 is provided with a hole 22, the LED I
  • the light-emitting point 11 is solidified in the blind hole 22, and the wire 12 of the light-emitting point II is extended to the conductive sheets 21 on both sides, and finally the epoxy resin is cast around the blind hole 22 which is completed by the solid-crystal wire to form the light guiding lens 13
  • the light of the light-emitting point 11 is concentrated via the 'hole 22' and is emitted by the light guiding lens 1.3 onto the LD.
  • the above-mentioned light guiding lens 13 has a different shape of the LED and has an arc shape.
  • the arc shape ensures that the light of the LED 1 is evenly scattered, and does not reach a point, so each LED 1 can form a uniform hook on the LCD.
  • the bright side of the light makes the LCD look more comfortable.
  • the light guiding lens 13 is a lens having a high light transmittance, and may be a light-transmitting material such as glass, in addition to the epoxy resin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

L'invention concerne une structure modulaire de rétroéclairage à écran à cristaux liquides, comportant une ou plusieurs LED (1) disposées le long d'une barre électroconductrice (2) équipée de lamelles conductrices (21) sur sa surface. Une lamelle conductrice (21) sert à connecter la barre conductrice (2) à un circuit de commande. Un trou borgne (22) est formé sur la barrette conductrice (2), le point lumineux (11) de la puce à LED est enfoui dans le trou borgne (22) et la connexion électrique est étendue du point lumineux (11) à deux lamelles conductrices adjacentes (21). Après réalisation de la connexion pour chaque puce à LED, de la résine époxy est appliquée autour du trou borgne (22) afin de former une lentille transparente. La configuration de lumière en couronne de la lentille permet à la LED (1) d'émettre de la lumière de façon uniforme, chaque LED formant ainsi une surface d'éclairage brillante uniforme sur la structure modulaire de rétroéclairage à écran à cristaux liquides.
PCT/CN2006/000729 2006-04-19 2006-04-19 Structure modulaire de rétroéclairage à écran à cristaux liquides WO2007118365A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/000729 WO2007118365A1 (fr) 2006-04-19 2006-04-19 Structure modulaire de rétroéclairage à écran à cristaux liquides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2006/000729 WO2007118365A1 (fr) 2006-04-19 2006-04-19 Structure modulaire de rétroéclairage à écran à cristaux liquides

Publications (1)

Publication Number Publication Date
WO2007118365A1 true WO2007118365A1 (fr) 2007-10-25

Family

ID=38609035

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2006/000729 WO2007118365A1 (fr) 2006-04-19 2006-04-19 Structure modulaire de rétroéclairage à écran à cristaux liquides

Country Status (1)

Country Link
WO (1) WO2007118365A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107003561A (zh) * 2014-12-11 2017-08-01 堺显示器制品株式会社 照明装置及显示装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002049326A (ja) * 2000-08-02 2002-02-15 Fuji Photo Film Co Ltd 平面光源およびそれを用いた表示素子
US6956243B1 (en) * 2004-07-23 2005-10-18 Unity Opto Technology Co., Ltd Light emitting diode
US6964489B2 (en) * 2002-09-27 2005-11-15 Siemens Aktiengesellschaft Device for producing an image
CN1716040A (zh) * 2004-06-30 2006-01-04 Lg.菲利浦Lcd株式会社 液晶显示器件的背光单元及使用该背光单元的液晶显示器件
US20060034097A1 (en) * 2004-08-11 2006-02-16 Samsung Electro-Mechanics Co., Ltd. Light emitting diode lens and backlight apparatus having the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002049326A (ja) * 2000-08-02 2002-02-15 Fuji Photo Film Co Ltd 平面光源およびそれを用いた表示素子
US6964489B2 (en) * 2002-09-27 2005-11-15 Siemens Aktiengesellschaft Device for producing an image
CN1716040A (zh) * 2004-06-30 2006-01-04 Lg.菲利浦Lcd株式会社 液晶显示器件的背光单元及使用该背光单元的液晶显示器件
US6956243B1 (en) * 2004-07-23 2005-10-18 Unity Opto Technology Co., Ltd Light emitting diode
US20060034097A1 (en) * 2004-08-11 2006-02-16 Samsung Electro-Mechanics Co., Ltd. Light emitting diode lens and backlight apparatus having the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107003561A (zh) * 2014-12-11 2017-08-01 堺显示器制品株式会社 照明装置及显示装置

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