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WO2016137038A1 - Plaque de guidage de lumière hybride ayant des lentilles à del intégrées - Google Patents

Plaque de guidage de lumière hybride ayant des lentilles à del intégrées Download PDF

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Publication number
WO2016137038A1
WO2016137038A1 PCT/KR2015/001923 KR2015001923W WO2016137038A1 WO 2016137038 A1 WO2016137038 A1 WO 2016137038A1 KR 2015001923 W KR2015001923 W KR 2015001923W WO 2016137038 A1 WO2016137038 A1 WO 2016137038A1
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
guide plate
hybrid
led
leds
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/KR2015/001923
Other languages
English (en)
Korean (ko)
Inventor
우주성
박장대
장규진
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.)
A Tech Solution Co Ltd
Original Assignee
A Tech Solution Co 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 A Tech Solution Co Ltd filed Critical A Tech Solution Co Ltd
Priority to PCT/KR2015/001923 priority Critical patent/WO2016137038A1/fr
Publication of WO2016137038A1 publication Critical patent/WO2016137038A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors

Definitions

  • the present invention relates to a light guide plate, and more particularly, a hybrid in which LEDs are disposed in a direct type, that is, LEDs are arranged in a plane on a substrate, and LED lenses corresponding to the respective LEDs are integrated in the light guide plate. (hybrid) relates to a light guide plate.
  • liquid crystal displays LCDs
  • LCDs liquid crystal displays
  • BLU backlight unit
  • CCFL cold cathode fluorescent lamp
  • LED Light Emitting Diode
  • the above-described backlight unit includes a direct type and an edge type according to the arrangement of the LEDs.
  • the direct type is a type in which the LEDs are arranged in a plane below the backlight unit, and the edge type is an LED. These are types arranged at the edge portion, that is, the edge of the backlight unit light guide plate.
  • the direct type since the LEDs are disposed under the backlight unit, there is a limit in slimming the thickness of the backlight unit, that is, the thickness of the liquid crystal display device. However, the number of LEDs used may increase, and the light emitted from the LEDs scatters through the light guide plate, and there is a difficulty in making the brightness of the light uniform.
  • LED lenses are installed on each LED, and a large number of LED lenses are installed on each of the LEDs.
  • the manufacturing period is long, and some LED lenses may not be aligned with the corresponding LEDs correctly, or the LED lenses may be out of position.
  • LEDs have been used a lot in recent years because of the low power consumption and long life, LED lights are increasing the range of use.
  • LED lighting as described above, there are many ways to secure the uniformity of the brightness and slim the thickness of the product.
  • An object of the present invention is to provide a light guide plate capable of solving the above problems, making the luminance of light more uniform, and reducing the thickness of the product.
  • Another object of the present invention is to provide a light guide plate capable of producing a product at a shorter manufacturing period and at a lower cost.
  • a hybrid light guide plate in which the LED lenses are integrated, the hybrid light guide plate is a hybrid light guide plate provided on the LEDs arranged in a plane on the substrate, the hybrid light guide plate, A light guide portion and LED lenses positioned on the respective LEDs, wherein the light guide portion and the LED lenses are integrally manufactured, and the hybrid light guide plate is installed on the LEDs arranged in a direct type.
  • the light guide portion and the LED lenses may be manufactured integrally by injection molding, and the hybrid light guide plate may be sealedly installed on a substrate on which LEDs are arranged.
  • the hybrid LGP may be used in a backlight unit of a liquid crystal display device or a flat panel LED lamp.
  • the LED lens may be a hybrid lens having a top emitting type, a side emitting type, or a hybrid of the top emitting type and the side emitting type.
  • a micro-optic pattern may be formed on the side portion of the hybrid lens of the LED lens.
  • the following effects can be obtained by utilizing a hybrid LGP having integrated LED lenses.
  • the number of LEDs required for products such as backlight unit or LED flat light can be reduced. For example, in a 32-inch LED TV, about 70 LEDs are required when the LEDs are arranged in an edge shape, while about 32 LEDs are required when the LEDs are directly arranged using the hybrid light guide plate according to the present invention. .
  • the thickness of the product can be made slimmer than the existing direct type.
  • the LED lenses are integrally integrated so that the manufacturing period of the product such as a backlight unit or LED flat panel lamp can be shortened, and the manufacturing cost can be reduced, and the LED lens is shifted from the corresponding LED. And the LED lens can be prevented from being displaced in position.
  • FIG. 1 is a plan view of a hybrid LGP having integrated LED lenses according to a preferred embodiment of the present invention.
  • FIG. 2A is a cross-sectional view taken along the line 'I-I' of FIG. 1.
  • FIG. 2B is an enlarged partial view of the circle “A” portion of FIG. 2A.
  • Figure 3a is a schematic cross-sectional view of the LED lens of the top emitting type.
  • 3B is a schematic cross-sectional view of the LED lens of the side emitting type.
  • 3C is a schematic cross-sectional view of an LED lens of a hybrid type.
  • FIG. 1 is a plan view of a hybrid light guide plate 1 in which LED lenses 20 are integrated, according to an embodiment of the present invention
  • FIG. 2A is a line 'I of FIG. 1.
  • -I ' is a sectional view
  • FIG. 2B is a partial enlarged view of the circle "A" in FIG. 2A.
  • the hybrid light guide plate 1 in which the LED lenses 20 are integrated is a hybrid installed on the LEDs 31 arranged planarly on the substrate 32.
  • the light guide plate 1 includes a light guide portion 10 having a flat plate shape and LED lenses 20 positioned directly above each of the LEDs 31 arranged on the substrate 32.
  • the 10 and the LED lenses 20 are manufactured in one piece, for example, by melting a resin such as PMMA, PC, PS, etc., and in one piece by injection molding. If the light guide portion 10 and the LED lens 20 need to be made of resin of different materials or resins of different colors, the light guide portion 10 and the LED lenses 20 may be integrally manufactured using the double injection method.
  • the hybrid light guide plate 1 manufactured in this manner may be installed on the LEDs 31 arranged in a direct type to form, for example, a backlight unit or an LED flat lamp.
  • 24 LED lenses 20 are integrated, which is exemplary, and the quantity thereof will vary depending on the type and size of the product.
  • the reason why the light guide plate 1 is referred to as a hybrid light guide plate in the present specification is that a light guide plate is installed in the case of an edge type in a general backlight unit, and a light guide plate is usually not installed in the case of a direct type. It is to be understood that the light guide plate 1 includes the LED lenses 20 integrally and is installed on the LEDs 31 arranged under the direct type, so that the light guide plate 1 is called a hybrid light guide plate 1.
  • the LED substrate 32 is a bar-shaped or plate-shaped substrate, and the LEDs 31 are arranged thereon, and the hybrid LGP 1 is sealedly installed on the substrate to form the hybrid LGP 1.
  • the internal LEDs 31 may be protected from the external environment.
  • the hybrid light guide plate 1 may be utilized for a backlight unit, an LED flat lamp, or an apparatus using other LEDs used in a liquid crystal display device.
  • FIGS. 3A-3C Schematic views of these types of LED lenses are shown in FIGS. 3A-3C, which is a schematic cross-sectional view of the LED lens 21 of the top emitting type
  • FIG. 3B is a side emitting type
  • FIG. 3C is a schematic cross-sectional view of the LED lens 23 of the hybrid type.
  • the LED lens 21 of the top emitting type, the LED lens 22 of the side emitting type, and the LED lens 23 of the hybrid type are included in the LED lens 20, and reference numerals 21, 22, and 23 are referred to. It is written as.
  • the LED lens 21 of the top-emitting type shown in FIG. 3A scatters the light emitted from the LED 31 as shown by arrows P1, P2, and P3 in the drawing, for example, through a diffusion plate (not shown) or the like.
  • the LED lens 22 of the side-emitting type shown in FIG. 3B emits light emitted from the LED 31 to the side as shown by arrows Q1, Q2, and Q3 of the drawing, and reflects the plate (not shown). Can be supplied to, for example, a liquid crystal panel, or the like through a diffusion plate (not shown).
  • the hybrid LED lens 23 shown in FIG. 3C is a mixed form of a top emitting type and a side emitting type.
  • the light emitted from the LED 31 may be scattered and emitted as shown by arrows R1, R2, S1, and S2 of the drawing, and may be supplied to, for example, a liquid crystal panel through a reflecting plate, a diffusion plate, and the like.
  • the micro-optic pattern 23a may be formed on the inclined side surface of the hybrid type LED lens 23 to further improve the uniformity of luminance.
  • the hybrid light guide plate 1 according to the present invention includes the LED lenses 21 of the top-emitting type, the LED lenses 22 of the side-emitting type, or the LED lenses 23 of the hybrid type.
  • other types of LED lenses may be manufactured and used integrally in the hybrid LGP 1 according to the present invention.
  • the manufacturing period of a product such as a backlight unit or an LED flat panel lamp can be shortened, manufacturing cost can be reduced, and the LED lenses are disposed to be offset from the corresponding LEDs. Not only can it be prevented but also the LED lens can be prevented from being displaced.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)

Abstract

L'invention concerne une plaque de guidage de lumière hybride ayant des DEL disposées dans un type direct et dans laquelle sont intégrées des lentilles à DEL qui correspondent aux DEL. La plaque de guidage de lumière hybride, selon l'invention, est une plaque de guidage de lumière hybride installée au sommet de DEL agencées à plat sur un substrat et comprend : une unité de guidage de lumière qui a une forme de plaque plate ; et des lentilles à DEL qui sont positionnées au sommet de chacune des DEL, l'unité de guidage de lumière et les lentilles à DEL étant fabriquées d'un seul tenant et la plaque de guidage de lumière hybride est installée au sommet des DEL qui sont disposés dans un type direct.
PCT/KR2015/001923 2015-02-27 2015-02-27 Plaque de guidage de lumière hybride ayant des lentilles à del intégrées Ceased WO2016137038A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/KR2015/001923 WO2016137038A1 (fr) 2015-02-27 2015-02-27 Plaque de guidage de lumière hybride ayant des lentilles à del intégrées

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2015/001923 WO2016137038A1 (fr) 2015-02-27 2015-02-27 Plaque de guidage de lumière hybride ayant des lentilles à del intégrées

Publications (1)

Publication Number Publication Date
WO2016137038A1 true WO2016137038A1 (fr) 2016-09-01

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PCT/KR2015/001923 Ceased WO2016137038A1 (fr) 2015-02-27 2015-02-27 Plaque de guidage de lumière hybride ayant des lentilles à del intégrées

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WO (1) WO2016137038A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100006810A (ko) * 2008-07-10 2010-01-22 (주) 아모엘이디 광출사 모듈 및 이를 이용한 백라이트 유니트
KR20100052275A (ko) * 2008-11-10 2010-05-19 삼성전자주식회사 측면이 곡면형태로 된 출광부를 가지는 일체형 도광판, 이의 제조방법 및 이를 채용한 디스플레이 장치
KR20120022198A (ko) * 2010-09-01 2012-03-12 동우 화인켐 주식회사 광확산 도광판, 이를 포함하는 백라이트 유닛 및 액정표시장치
KR101195309B1 (ko) * 2012-05-31 2012-10-26 주식회사 코아옵틱스 광학시트 및 그 제조방법
KR20130019900A (ko) * 2011-08-18 2013-02-27 주식회사 에스앤에스레볼루션 어레이형 면광원장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20100006810A (ko) * 2008-07-10 2010-01-22 (주) 아모엘이디 광출사 모듈 및 이를 이용한 백라이트 유니트
KR20100052275A (ko) * 2008-11-10 2010-05-19 삼성전자주식회사 측면이 곡면형태로 된 출광부를 가지는 일체형 도광판, 이의 제조방법 및 이를 채용한 디스플레이 장치
KR20120022198A (ko) * 2010-09-01 2012-03-12 동우 화인켐 주식회사 광확산 도광판, 이를 포함하는 백라이트 유닛 및 액정표시장치
KR20130019900A (ko) * 2011-08-18 2013-02-27 주식회사 에스앤에스레볼루션 어레이형 면광원장치
KR101195309B1 (ko) * 2012-05-31 2012-10-26 주식회사 코아옵틱스 광학시트 및 그 제조방법

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