KR200399725Y1 - Backlight module - Google Patents
Backlight module Download PDFInfo
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- KR200399725Y1 KR200399725Y1 KR20-2005-0022319U KR20050022319U KR200399725Y1 KR 200399725 Y1 KR200399725 Y1 KR 200399725Y1 KR 20050022319 U KR20050022319 U KR 20050022319U KR 200399725 Y1 KR200399725 Y1 KR 200399725Y1
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- light guide
- light
- backlight module
- diffusion plate
- direct type
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133604—Direct backlight with lamps
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133611—Direct backlight including means for improving the brightness uniformity
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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
본 고안의 백라이트 모듈은 내측으로부터 외측을 향하여 반사광 커버, 복수의 광원, 확산 플레이트, 여러 매의 광학시트 및 LCD 플레이트가 차례대로 설치되고, 확산 플레이트는 입사면 및 출사면 상에서 복수의 도광홈을 형성하며, 광원의 광선은 상기 확산 플레이트의 도광홈을 경유하여 설치되고, 통과 광선은 적어도 두차례 도광홈의 확산을 거쳐서, 광원의 광선이 더욱 유효하게 배분된다.In the backlight module of the present invention, a reflection light cover, a plurality of light sources, a diffusion plate, a plurality of optical sheets, and an LCD plate are sequentially installed from the inside to the outside, and the diffusion plate forms a plurality of light guide grooves on the entrance and exit surfaces. The light source of the light source is installed via the light guiding groove of the diffusion plate, and the passing light beam is distributed through the light guiding groove at least twice so that the light beam of the light source is more effectively distributed.
Description
본 고안은 백라이트 모듈의 도광 구조에 관한 것으로, 특히 직하식(直下式) 백라이트 모듈 도광구조의 제공에 관한 것이다.The present invention relates to a light guide structure of a backlight module, and more particularly, to the provision of a direct backlight module light guide structure.
일반적으로 정보 장치의 LCD에서 응용되는 것으로, 실제 설계 요구에 의거하여, 직하식 혹은 측광식(側光式) 백라이트 모듈 지지구조가 선택적으로 이용된다. 도 1에 도시된 바와 같이, 직하식 백라이트 모듈 지지구조의 기본구조 개략도로서, 백라이트 모듈 구조는 내측으로부터 외측을 향하여 반사광 커버(10), 복수의 광원(20), 확산 플레이트(30), 여러 매의 광학시트(40) 및 LCD 플레이트(50)가 차례대로 설치된다. 각 광원(20)은 직선 형태 혹은 U 자 형태 혹은 기타 연속적으로 굽은 형태의 램프가 나란히 소정 간격으로 반사광 커버(10)와 확산 플레이트(30) 사이에 설치되고, LCD 모듈의 디스플레이 효과는 각 광원(20)으로부터 배출되는 광선에 의해 형성된다. 시장 형편상 상기 확산 플레이트(30)와 LCD 플레이트(50) 사이의 여러 매의 광학시트(40)는 1 내지 3 개의 확산편과 0 내지 2 개의 증광편 및 0 내지 1 개의 반사식 편광편 등이 상호 배합되어 구성되고, 그 작용은 통과하는 광선이 확산 작용을 형성하나, 개선하고자 하는 것은 각 광원(20) 간의 간격 부위에는 광선이 생산되지 못함으로써, LCD 모듈 상에서 명암 구역 현상이 형성되는 것이다.Generally applied to LCDs of information devices, a direct or metered backlight module support structure is selectively used based on actual design requirements. As shown in FIG. 1, a schematic diagram of a basic structure of a direct backlight module support structure includes a reflection light cover 10, a plurality of light sources 20, a diffusion plate 30, and a plurality of elements. The optical sheet 40 and the LCD plate 50 are installed in sequence. Each light source 20 is installed between the reflective light cover 10 and the diffuser plate 30 at a predetermined interval in a straight line, U-shaped or other continuously curved lamps side by side, the display effect of the LCD module is 20) is formed by the light rays emitted from it. For the convenience of the market, the optical sheets 40 between the diffusion plate 30 and the LCD plate 50 include one to three diffusion pieces, zero to two dimming pieces, zero to one reflective polarizing pieces, and the like. It is composed of a combination, the action is that the light passing through forms a diffusing action, but what is desired to improve is that light rays are not produced in the gap between each light source 20, the light and dark zone phenomenon is formed on the LCD module.
또한, 확산 플레이트(30)의 작용은 통과 광선을 균일하게 분산시켜, LCD 모듈의 유한한 명암 구역 현상의 효과를 개선하고자 하는 것으로, 이로 인하여 백라이트 모듈은 광원(20)과 확산 플레이트(30)의 간격을 최대한 길게 하여, 각 광원(20)이 확산 플레이트(30)의 범위로 진입되어 확대됨으로써, 어두운 구역을 축소시키는 목적에 도달하는 것이다. 다만, 상기와 같은 구조 설계는 효과면에서 상당히 한계가 있을 뿐만 아니라, 백라이트 모듈의 두께를 증가시킴으로써, LCD 모듈 경박화의 원래 설계에 위배된다. In addition, the action of the diffuser plate 30 is to uniformly disperse the passing light beam, to improve the effect of the finite contrast zone phenomenon of the LCD module, so that the backlight module of the light source 20 and the diffuser plate 30 By making the interval as long as possible, each light source 20 enters and expands the range of the diffusion plate 30, thereby reaching the purpose of reducing the dark area. However, the structural design as described above is quite limited in terms of effects, and by increasing the thickness of the backlight module, it violates the original design of the LCD module thinning.
이에 따라, 본 고안은 「직하식 백라이트 모듈 도광구조」로서 내측으로부터 외측을 향하여 반사광 커버, 복수의 광원, 확산 플레이트, 여러 매의 광학시트 및 LCD 플레이트가 차례대로 설치되고; 확산 플레이트는 입사면 및 출사면 상에서 복수의 도광홈을 형성하며, 광원의 광선이 LCD 플레이트로 입사되기 전에, 상기 확산 플레이트의 도광홈이 설치되고, 통과 광선은 적어도 두차례 도광홈의 확산을 거쳐서, 각 광원 간의 어두운 구역을 소거시킴으로써, 주동적이고 적극적인 수단이 되어, 종래의 백라이트 모듈에서 나타나는 명암 구역의 과제를 효율적으로 해결됨으로써, 광원의 광선은 더욱 유효하게 배분된다.Accordingly, the present invention provides a "direct backlight module light guide structure", in which a reflection cover, a plurality of light sources, a diffusion plate, a plurality of optical sheets, and an LCD plate are installed in order from the inside to the outside; The diffusion plate forms a plurality of light guide grooves on the entrance surface and the exit surface, and before the light beams of the light source enter the LCD plate, the light guide grooves of the diffusion plate are installed, and the passing light beams are diffused through the light guide grooves at least twice. By eliminating the dark areas between the respective light sources, it becomes a positive and active means, and effectively solves the problem of the light and dark areas shown in the conventional backlight module, whereby the light rays of the light sources are more effectively distributed.
본 고안은 「직하식 백라이트 모듈 도광구조」로서, 도광구조의 기본 구조는 실시예 응용에서의 장치 구성방식이 도 2에 도시된 바와 같이, 「직하식 백라이트 모듈 도광구조」로서 내측으로부터 외측을 향하여 반사광 커버(10), 복수의 광원(20), 확산 플레이트(30), 여러 매의 광학시트(40) 및 LCD 플레이트(50)가 차례대로 설치되고, 상기 여러 매의 광학시트(40)는 1 내지 3 개의 확산편과 0 내지 2 개의 증광편 및 0 내지 1 개의 반사식 편광편 등이 상호 배합되어 구성된다. 각 광원(20)은 직선 형태 혹은 U 자 형태 혹은 기타 연속적으로 굽은 형태의 램프가 나란히 소정 간격으로 반사광 커버(10)와 확산 플레이트(30) 사이에 설치되고, LCD 모듈의 디스플레이 효과는 각 광원(20)으로부터 분산되는 광선으로 구성된다. The present invention is a "direct backlight module light guide structure", the basic structure of the light guide structure is a "direct backlight module light guide structure" as shown in Fig. The reflected light cover 10, the plurality of light sources 20, the diffusion plate 30, several optical sheets 40 and the LCD plate 50 are installed in sequence, the several optical sheets 40 are 1 3 to 3 diffuser pieces, 0 to 2 dimming pieces, 0 to 1 reflective polarizing pieces, and the like are mixed with each other. Each light source 20 is installed between the reflective light cover 10 and the diffuser plate 30 at a predetermined interval in a straight line, U-shaped or other continuously curved lamps side by side, the display effect of the LCD module is 20) is made up of light rays scattered from it.
중점적인 것은 : 확산 플레이트(30)는 입사면(31) 및 출사면(32) 상에서 복수의 도광홈(33)이 설치되고, 본 실시예 중에서, 각 도광홈(33) 사이 거리는 1 mm이하이며, 각 광원(20)의 광선이 LCD 플레이트(50)로 입사되기 전에, 상기 확산 플레이트(30)의 도광홈(33)이 설치되므로, 통과 광선은 적어도 두차례 도광홈(33)의 확산작용을 거쳐서, 백라이트 모듈은 소정의 휘도 표현효과를 이룸으로써, 주동적이고 적극적인 수단으로 각 광원 사이에서 형성되는 어두운 구역이 소거되어, 광원의 광선은 더욱 유효하게 배분된다.The main point is that the diffusion plate 30 is provided with a plurality of light guide grooves 33 on the entrance face 31 and the exit face 32, and in this embodiment, the distance between each light guide groove 33 is 1 mm or less. Since the light guide groove 33 of the diffusion plate 30 is installed before the light beam of each light source 20 enters the LCD plate 50, the passing light beam diffuses the light guide groove 33 at least twice. By doing this, the backlight module achieves a predetermined luminance expression effect, thereby erasing dark areas formed between the respective light sources by active and positive means, thereby more effectively distributing the light rays of the light sources.
도 2 및 도 3을 동시에 참고하면, 각 도광홈(33)은 도시된 바와 같이 복수의 V 자형 홈 돌출구조로서, 본 실시예 중에서, 각 도광홈(33)의 높이는 0.5 mm 이하이고, 혹은 복수의 V 자형 홈 오목구조(도 3에 도시)로 구성되어, 각 도광홈의 깊이는 0.5 mm 이하이며, 돌출구조 혹은 오목구조 설계는 배치부위의 구조형태에 일체형으로 연장되고, 혹은 서로 다른 기하 형태의 구조체가 되며, 도 4에 도시된 바와 같이, U 자형의 도광홈 형태가 되어, 통과 광선에 대하여 확산작용이 형성된다. Referring to FIGS. 2 and 3 simultaneously, each of the light guide grooves 33 has a plurality of V-shaped groove protrusion structures as shown in the drawing. In this embodiment, the height of each of the light guide grooves 33 is 0.5 mm or less, or a plurality of the light guide grooves 33 are shown in FIG. V-shaped groove concave structure (shown in Fig. 3), each light guide groove has a depth of 0.5 mm or less, the protruding structure or concave structure design is integrally extended to the structure of the placement site, or different geometric shapes As shown in FIG. 4, the structure becomes a U-shaped light guide groove, and a diffusion effect is formed on the passing light beam.
본 고안의 백라이트 모듈은 내측으로부터 외측을 향하여 반사광 커버, 복수의 광원, 확산 플레이트, 여러 매의 광학시트 및 LCD 플레이트가 차례대로 설치되고, 확산 플레이트는 입사면 및 출사면 상에서 복수의 도광홈을 형성하며, 광원의 광선은 상기 확산 플레이트의 도광홈을 경유하여 설치되고, 통과 광선은 적어도 두차례 도광홈의 확산을 거쳐서, 광원의 광선이 더욱 유효하게 배분된다.In the backlight module of the present invention, a reflection light cover, a plurality of light sources, a diffusion plate, a plurality of optical sheets, and an LCD plate are sequentially installed from the inside to the outside, and the diffusion plate forms a plurality of light guide grooves on the entrance and exit surfaces. The light source of the light source is installed via the light guiding groove of the diffusion plate, and the passing light beam is distributed through the light guiding groove at least twice so that the light beam of the light source is more effectively distributed.
상술한 바와 같이, 본 고안은 직하식 백라이트 모듈의 비교적 바람직한 도광구조를 제공하는 것으로, 법에 의거하여 본 실용신안을 신청한다. 이상의 실시예 및 도식은 본 고안의 비교적 바람직한 실시예를 예시하는 것으로서, 본 고안은 상기 실시예로만 한정되는 것은 아니다. 본 고안의 구조와 장치 및 특징과 유사하거나 대안적인 것들은 본 고안의 목적 및 청구 범위 내에 속한다.As described above, the present invention provides a relatively preferable light guiding structure of a direct type backlight module, and applies for this utility model in accordance with the law. The above embodiments and schemes illustrate relatively preferred embodiments of the present invention, and the present invention is not limited to the above embodiments. Similar or alternative to structures, devices and features of the present invention fall within the objects and claims of the present invention.
도 1은 종래의 직하식 백라이트 모듈의 구조 개략도.1 is a schematic view of a conventional direct backlight module.
도 2는 본 고안에 따른 직하식 백라이트 모듈의 응용배치 상태도.Figure 2 is an application arrangement of the direct type backlight module according to the present invention.
도 3은 본 고안에 따른 확산 플레이트의 입체 분해도.3 is a three-dimensional exploded view of the diffusion plate according to the present invention.
도 4는 본 고안에 따른 다른 확산 플레이트의 입체 분해도.4 is a three-dimensional exploded view of another diffusion plate according to the present invention.
<도면의 주요부분에 대한 부호의 설명><Description of the symbols for the main parts of the drawings>
10 : 반사광 커버 32 : 출사면10: reflected light cover 32: exit surface
20 : 광원 33 : 도광홈20: light source 33: light guide groove
30 : 확산 플레이트 40 : 광학시트30: diffusion plate 40: optical sheet
31 : 입사면 50 : LCD 플레이트 31: incident surface 50: LCD plate
Claims (8)
Priority Applications (1)
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KR20-2005-0022319U KR200399725Y1 (en) | 2005-08-01 | 2005-08-01 | Backlight module |
Applications Claiming Priority (1)
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KR20-2005-0022319U KR200399725Y1 (en) | 2005-08-01 | 2005-08-01 | Backlight module |
Publications (1)
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KR200399725Y1 true KR200399725Y1 (en) | 2005-10-26 |
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Family Applications (1)
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KR20-2005-0022319U KR200399725Y1 (en) | 2005-08-01 | 2005-08-01 | Backlight module |
Country Status (1)
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KR (1) | KR200399725Y1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109460696A (en) * | 2017-09-06 | 2019-03-12 | 蓝思科技(长沙)有限公司 | Optical finger print sensing device and electronic equipment |
-
2005
- 2005-08-01 KR KR20-2005-0022319U patent/KR200399725Y1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109460696A (en) * | 2017-09-06 | 2019-03-12 | 蓝思科技(长沙)有限公司 | Optical finger print sensing device and electronic equipment |
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