KR20020045818A - Fluorescent Lamp And Backlight Device With The Same - Google Patents
Fluorescent Lamp And Backlight Device With The Same Download PDFInfo
- Publication number
- KR20020045818A KR20020045818A KR1020000075219A KR20000075219A KR20020045818A KR 20020045818 A KR20020045818 A KR 20020045818A KR 1020000075219 A KR1020000075219 A KR 1020000075219A KR 20000075219 A KR20000075219 A KR 20000075219A KR 20020045818 A KR20020045818 A KR 20020045818A
- Authority
- KR
- South Korea
- Prior art keywords
- fluorescent lamp
- transparent tube
- guide plate
- light guide
- fluorescent
- Prior art date
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- 239000000463 material Substances 0.000 claims abstract description 8
- 230000000694 effects Effects 0.000 claims description 7
- 238000009792 diffusion process Methods 0.000 abstract description 8
- 239000011521 glass Substances 0.000 description 19
- 239000004973 liquid crystal related substance Substances 0.000 description 8
- 238000007789 sealing Methods 0.000 description 3
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
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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
- G02F1/133617—Illumination with ultraviolet light; Luminescent elements or materials associated to the cell
-
- 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
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/30—Vessels; Containers
- H01J61/302—Vessels; Containers characterised by the material of the vessel
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
Abstract
Description
본 발명은 형광램프(Fluorescent Lamp) 및 이를 채용한 백라이트 장치에 관한 것으로, 특히 고휘도를 요구하는 백라이트에 적용하기 적합하도록 램프의 단면 구조를 변형한 형광램프 및 이를 채용한 백라이트 장치에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent lamp and a backlight device employing the same, and more particularly, to a fluorescent lamp in which the cross-sectional structure of the lamp is modified to be suitable for a backlight requiring high brightness, and a backlight device employing the same.
액정표시소자는 콘트라스트(contrast) 비가 크고, 계조 표시나 동화상 표시에 적합하며 전력소비가 적다는 특징 때문에, CRT(cathode ray tube)의 단점을 극복할 수 있는 대체수단으로써 점차 그 사용 영역이 확대되고 있다.Due to the high contrast ratio, suitable for gradation display or moving image display, and low power consumption, the liquid crystal display device has been gradually used as an alternative means to overcome the disadvantage of cathode ray tube (CRT). have.
하지만, 상기 액정표시소자는 그 자체가 비발광성이므로 빛을 조사하기 위한 별도의 외부광원이 필요하다.However, since the liquid crystal display itself is non-luminescent, a separate external light source for irradiating light is required.
이러한 외부광원은 액정표시소자의 크기, 사용목적에 따라 적당히 선택되어 사용되는데, 형태별로 나누면 백열전구, 백색 할로겐 램프 등의 점광원, 형광 램프(열음극, 냉음극)등의 선광원, EL(Electroluminescent), 매트릭스 형상의 발광 다이오드(LED:Light Emitting Diodes)에 의한 평면 광원 등이 있다.The external light source is appropriately selected according to the size and purpose of use of the liquid crystal display device. The external light source is divided into types according to the type, and the light source such as incandescent lamps, white halogen lamps, line light sources such as fluorescent lamps (hot cathode and cold cathode), and EL (Electroluminescent) ), And planar light sources using matrix light emitting diodes (LEDs).
이중에서 선광원을 생성하는 냉음극관 형광램프가 수명이 길고 분광특성이 뛰어나 외부광원 소위, 백라이트로 널리 사용되고 있다.Among them, cold cathode fluorescent lamps that generate linear light sources have long life and excellent spectral characteristics, so they are widely used as external light sources.
이하, 첨부된 도면을 참조하여 종래 기술에 따른 형광램프를 설명하면 다음과 같다.Hereinafter, a fluorescent lamp according to the prior art will be described with reference to the accompanying drawings.
도 1은 종래 기술에 의한 백라이트 구조를 나타낸 단면도이다.1 is a cross-sectional view showing a backlight structure according to the prior art.
일반적으로, 백라이트는 액정패널 하단부에 구성되는데, 그 구조는 도 1에 도시된 바와 같이 액정패널의 좌측 또는 우측에 설치된 형광램프(11)와, 상기 형광램프(11)를 고정시켜줌과 동시에 형광램프에 나온 빛을 도광판으로 집속시켜주는 램프하우징(12)과, 상기 형광램프(11)로부터 발광된 빛을 백라이트 상부의 액정패널로 공급해 주는 도광판(13)과, 상기 도광판(13) 하부에 부착되어 새어나오는 빛을 도광판(13)으로 반사시켜 주는 반사판(14)과, 상기 도광판(13) 상부에 위치하여 도광판에서 나온 빛을 균일하게 확산시키는 주는 확산판(15)과, 상기 확산판(15) 상부에 위치하여 상기 확산부에서 확산시킨 빛을 집광시켜 액정패널로 전달하는 프리즘 시트(16)와, 상기 구성 요소들을 수납하여 고정시켜주는 메인 지지대(17)로 구성된다.In general, the backlight is configured at the lower end of the liquid crystal panel, and its structure is fixed to the fluorescent lamp 11 and the fluorescent lamp 11 installed on the left or right side of the liquid crystal panel as shown in FIG. It is attached to the lamp housing 12 for converging the light emitted to the light guide plate, the light guide plate 13 for supplying the light emitted from the fluorescent lamp 11 to the liquid crystal panel of the upper backlight, and the lower light guide plate 13 Reflector 14 for reflecting the leaking light to the light guide plate 13, a diffuser plate 15 that is located above the light guide plate 13 to uniformly diffuse the light from the light guide plate, and the diffusion plate 15 It is composed of a prism sheet 16 located in the upper portion to collect the light diffused from the diffusion portion and transmits it to the liquid crystal panel, and a main support 17 for storing and fixing the components.
특히, 상기 백라이트 구성 부분 중 형광램프(11)는 튜브형 유리관과, 상기 유리관의 양단에 형성된 음극 및 양극과, 상기 유리관 내벽에 도포된 형광물질과, 유리관 내에 방전가스가 채워져 있는 방전공간으로 구성된다..In particular, the fluorescent lamp 11 of the backlight component portion is composed of a tubular glass tube, a cathode and an anode formed on both ends of the glass tube, a fluorescent material applied to the inner wall of the glass tube, and a discharge space filled with a discharge gas in the glass tube. ..
이 때, 종래의 형광램프는 원통형 형광램프로서 그 단면이 도 1에 도시된 바와 같이 내측단면 및 외측단면 모두가 원형이다.At this time, the conventional fluorescent lamp is a cylindrical fluorescent lamp, the cross section of both the inner and outer cross-section as shown in Figure 1 is circular.
이와같이 구성된 종래 백라이트에서는 내,외측단면이 모두 원형인 형광램프로부터 발생하는 빛을 도광판 입광면에 집속하여 입사시키기 위해 램프 하우징의 모양을 다양하게 변형해 왔다.In the conventional backlight configured as described above, the shape of the lamp housing has been variously modified in order to focus and incident light generated from the fluorescent lamp having both inner and outer cross sections to the light guide plate incident surface.
그러나, 상기와 같은 종래의 형광 램프는 다음과 같은 문제점이 있다.However, the conventional fluorescent lamp as described above has the following problems.
즉, 종래 형광램프 유리관의 내측면 및 외측단면은 모두 원형으로서 전사방으로 분산되는 빛을 도광판 입광면에 집속시키기가 어려웠다.That is, it is difficult for the inner surface and the outer end surface of the conventional fluorescent lamp glass tube to have a circular shape, so that light dispersed in the transfer room is focused on the light guide plate incident surface.
그래서, 램프하우징의 모양을 다양하게 변화시켜 상기 문제점을 보완해 왔는데, 입사광량을 증가시키기 위한 램프하우징의 설계는 부피를 크게하는 단점이 있어 실용화되기가 어려웠고 그 효율도 그다지 높지 않았다.Thus, the problem has been solved by variously changing the shape of the lamp housing, the design of the lamp housing to increase the amount of incident light has a disadvantage of increasing the volume, it was difficult to be practical and its efficiency was not very high.
또한, 최근 고집광, 고효율, 초경량 백라이트를 요구하고 있으나 램프 구조가 원형으로 고정되어 있어 램프 하우징의 모양을 변경하는데 한계가 있었다.In addition, the recent demand for high light concentration, high efficiency, and ultra-lightweight backlight, but because the lamp structure is fixed in a circular shape there was a limit in changing the shape of the lamp housing.
본 발명은 상기와 같은 문제점을 해결하기 위하여 안출한 것으로, 형광램프의 유리관 내,외측단면의 모양을 각각 달리하여 입사광량을 증가시키고, 이를 적용한 백라이트의 휘도를 증가시키는 형광 램프를 제공하는데 그 목적이 있다.The present invention has been made in order to solve the above problems, to increase the amount of incident light by varying the shape of the inner and outer cross-section of the glass tube of the fluorescent lamp, and to provide a fluorescent lamp to increase the brightness of the backlight applying the same There is this.
도 1은 종래 기술에 의한 백라이트 구조를 나타낸 단면도.1 is a cross-sectional view showing a backlight structure according to the prior art.
도 2는 본 발명의 한 실시예에 의한 백라이트 구조를 나타낸 단면도.2 is a cross-sectional view showing a backlight structure according to an embodiment of the present invention.
도 3a는 본 발명에 의한 X방향의 형광램프 단면도.Figure 3a is a cross-sectional view of the fluorescent lamp in the X direction according to the present invention.
도 3b는 본 발명에 의한 Y방향의 형광램프 단면도.Figure 3b is a cross-sectional view of the fluorescent lamp in the Y direction according to the present invention.
도 4는 본 발명의 다른 실시예를 설명하기 위한 형광램프의 단면도.4 is a cross-sectional view of a fluorescent lamp for explaining another embodiment of the present invention.
*도면의 주요 부분에 대한 부호설명* Explanation of symbols on the main parts of the drawings
111 : 형광램프 112 : 램프하우징111: fluorescent lamp 112: lamp housing
113 : 도광판 114 : 반사판113: Light guide plate 114: Reflective plate
115 : 확산판 116 : 프리즘 시트115: diffuser plate 116: prism sheet
117 : 메인 지지대 121 : 유리관117: main support 121: glass tube
122 : 형광물질 123 : 음극122: fluorescent material 123: cathode
124 : 양극 125 : 방전공간124: anode 125: discharge space
126 : 리드선 127 : 봉입구126: lead wire 127: sealing opening
상기와 같은 목적을 달성하기 위한 본 발명의 형광램프는 특히 내,외측단면의 모양이 서로 다르게 제작된 투명관과, 상기 투명관 양단에 각각 형성된 음극 및 양극과, 상기 투명관 내측면에 도포된 형광물질과, 상기 투명관 내에 채워진 방전공간을 포함하여 구성되는 것을 특징으로 한다.The fluorescent lamp of the present invention for achieving the above object is a transparent tube made of a different shape, in particular, the inner and outer cross-section, and the cathode and anode formed on both ends of the transparent tube, respectively, and applied to the inner surface of the transparent tube And a discharge space filled in the fluorescent material and the transparent tube.
즉, 본 발명에서는 내측단면과 외측단면이 모두 원형인 종래의 형광램프와 달리, 그 모양을 서로 다르게 설계하여 유리관 단면 두께를 위치별로 다르게 함으로써 집광과 분산의 효과를 높이는 형광램프를 제공한다.That is, in the present invention, unlike the conventional fluorescent lamp, both the inner and outer cross-section is circular, the shape is designed differently to provide a fluorescent lamp to increase the effect of condensing and dispersion by varying the glass tube cross-section thickness by position.
그리고, 상기 형광램프를 백라이트에 적용하여 백라이트 휘도를 증가시키는 것을 특징으로 한다.The fluorescent lamp may be applied to a backlight to increase backlight brightness.
이하, 첨부된 도면을 참조하여 본 발명에 의한 형광램프를 상세히 설명하면 다음과 같다.Hereinafter, a fluorescent lamp according to the present invention will be described in detail with reference to the accompanying drawings.
도 2는 본 발명의 한 실시예에 의한 백라이트 구조를 나타낸 단면도이고, 도 3a는 본 발명에 의한 X방향의 형광램프 단면도이고, 도 3b는 본 발명에 의한 Y방향의 형광램프 단면도이다.2 is a cross-sectional view showing a backlight structure according to an embodiment of the present invention, Figure 3a is a cross-sectional view of the fluorescent lamp in the X direction according to the present invention, Figure 3b is a cross-sectional view of the fluorescent lamp in the Y direction according to the present invention.
그리고, 도 4는 본 발명의 다른 실시예를 설명하기 위한 형광램프의 단면도이다.4 is a cross-sectional view of a fluorescent lamp for explaining another embodiment of the present invention.
영상을 디스플레이하는 정보표시면 일예로, 액정패널 하단부에 구성되는 본 발명에 의한 백라이트의 구조는 도 2에 도시된 바와 같이 정보표시면의 어느 일측에 설치되어 빛을 발하고 그 단면의 두께가 각 위치별로 다른 형광램프(111)와, 상기 형광램프(111)를 고정시켜주는 램프하우징(112)과, 상기 형광램프(111)로부터 조사된 빛을 백라이트 상부의 정보표시면으로 공급해 주는 도광판(113)과, 상기 도광판(113) 하부에 부착되어 정보표시면과 반대쪽으로 새어나오는 빛을 도광판(113)으로 반사시켜 주는 반사판(114)과, 상기 도광판(113) 상부에 위치하여 도광판에서 나온 빛을 균일하게 확산시키는 주는 확산판(115)과, 상기 확산판(115) 상부에 위치하여 상기 확산부에서 확산시킨 빛을 집광시켜 정보표시면으로 전달하는 프리즘 시트(116)와, 상기 구성 요소들을 수납하여 고정시켜주는 메인 지지대(117)로 구성된다.As an example of the information display surface for displaying an image, the structure of the backlight according to the present invention configured in the lower end of the liquid crystal panel is installed on any one side of the information display surface as shown in Figure 2 and the thickness of the cross section is Fluorescent lamps 111 according to positions, a lamp housing 112 for fixing the fluorescent lamps 111, and a light guide plate 113 for supplying light emitted from the fluorescent lamps 111 to the information display surface above the backlight. ), A reflection plate 114 attached to a lower portion of the light guide plate 113 to reflect the light leaking out from the information display surface to the light guide plate 113, and positioned above the light guide plate 113 to emit light from the light guide plate. A diffusion plate 115 for uniformly diffusing, a prism sheet 116 positioned on the diffusion plate 115 to collect and diffuse the light diffused by the diffusion portion to an information display surface, and the components It is composed of a main support 117 for receiving and fixing.
상기 형광램프에 대해 좀 더 상세히 살펴보면 도 3a 및 도 3b에 도시된 바와 같이, 내,외측단면의 모양이 서로 다른 튜브형 유리관(121)과, 상기 유리관(121)의 양단에 형성된 음극(123) 및 양극(124)과, 상기 유리관(121) 내벽에 도포된 형광물질(122)과, 방전가스 등이 채워져 있는 유리관 내의 방전공간(125)과, 상기음극(123) 및 양극(124)에 전압을 인가하기 위한 리드선(126)과, 상기 유리관(121)의 양단을 밀봉하기 위한 봉합부(127)로 구성되어 있다.Looking at the fluorescent lamp in more detail as shown in Figures 3a and 3b, the inner and outer cross-sectional shape of the tubular glass tube 121 is different, the cathodes 123 formed on both ends of the glass tube 121 and Voltage is applied to the anode 124, the fluorescent material 122 coated on the inner wall of the glass tube 121, the discharge space 125 in the glass tube filled with the discharge gas, and the cathode 123 and the anode 124. The lead wire 126 for applying and the sealing part 127 for sealing both ends of the said glass tube 121 are comprised.
상기와 같이 구성된 형광램프는 상기 두 전극(123,124)간에 고전압을 인가하면, 유리관(121)내에 존재하는 전자가 전극에 이끌려 충돌하게 되어 2차 전자가 방출되는데 그 결과, 방전이 개시된다.In the fluorescent lamp configured as described above, when a high voltage is applied between the two electrodes 123 and 124, electrons existing in the glass tube 121 are attracted to the electrode and collide with each other, and secondary electrons are emitted. As a result, discharge is started.
그리고, 상기 방전에 의해 유동하는 전자는 유리관(121)내의 또다른 전자 일예로, 수은 전자와 충돌하여 자외선을 발생시키고, 자외선은 형광물질을 여기시켜 가시광선을 발광하게 된다.In addition, the electrons flowing by the discharge are another electrons in the glass tube 121, and collide with mercury electrons to generate ultraviolet rays, and the ultraviolet rays excite the fluorescent material to emit visible light.
상기와 같이 발하게 된 빛은 도광판 입광면에 집광되어 도광판을 거치고 확산판과, 프리즘 시트를 차례로 거쳐 정보표시면에 전달된다.The light emitted as described above is focused on the light guide plate incident surface, passes through the light guide plate, and is then transmitted to the information display surface through the diffusion plate and the prism sheet.
이 때, 본 발명의 한 실시예에 따른 형광램프의 단면은 도 2에서와 같이 외측단면은 타원형으로 내측단면은 원형으로 한다.At this time, the cross section of the fluorescent lamp according to an embodiment of the present invention has an outer cross section of an elliptical shape and an inner cross section of a circular shape as shown in FIG. 2.
또 다른 실시예에서는 도 4에서와 같이 유리관의 내,외측단면의 모양을 서로 달리함으로써 각 위치별 단면의 두께를 다르게 한다.In another embodiment, as shown in Figure 4 by changing the shape of the inner and outer cross-section of the glass tube to vary the thickness of the cross section for each position.
이 때, 유리관의 내,외측단면은 원형, 타원형, 사각형 등 다양하게 변형하여 실시할 수 있다.At this time, the inner and outer cross-section of the glass tube can be carried out by various modifications such as circular, oval, square.
이와같이 단면 두께가 다르게 설계된 형광램프는 필요한 방향에 대해 볼록렌즈 또는 오목렌즈 효과를 가지게 되는데, 도광판 입면에 도달하는 빛의 총광량, 입사각별 광량을 조절함으로써 도광 패턴 설계에 필요한 집광을 유도할 수 있다.As described above, fluorescent lamps with different cross-sectional thicknesses have convex or concave lens effects in the required direction. By adjusting the total amount of light reaching the light guide plate surface and the amount of incident light, the light condensation can be induced. .
이로써, 형광램프로부터 나온 빛을 도광판 입광면에 집속하여 입사시키기 위해 다양하게 변형되어 왔던 램프 하우징의 구조도 단순화, 경량화시킬 수 있게 된다.As a result, the structure of the lamp housing, which has been variously modified in order to focus light incident from the fluorescent lamp on the light guide plate incident surface, can be simplified and lightened.
상기와 같은 본 발명의 형광 램프는 다음과 같은 효과가 있다.The fluorescent lamp of the present invention as described above has the following effects.
첫째, 유리관의 내,외측단면 모양을 서로 다르게 하여 유리관 단면의 두께를 위치별로 다르게 함으로써 집광효과를 가지는 형광램프를 얻을 수 있다.First, a fluorescent lamp having a light converging effect can be obtained by varying the inner and outer cross-sectional shapes of the glass tube and changing the thickness of the glass tube section by position.
둘째, 본 발명에 의한 형광램프를 백라이트로 사용할 경우, 백라이트의 휘도가 증가된다.Second, when the fluorescent lamp according to the present invention is used as a backlight, the brightness of the backlight is increased.
셋째, 집광효과를 가지는 형광램프를 백라이트로 사용할 경우, 도광판 입광면에 집광된 빛을 입사할 수 있게 됨으로써, 램프 하우징의 구조가 단순해지고 도광판 패턴 설계가 용이해진다.Third, when a fluorescent lamp having a light collecting effect is used as a backlight, the light collected by the light guide plate incident surface can be incident, thereby simplifying the structure of the lamp housing and facilitating the design of the light guide plate pattern.
Claims (4)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020000075219A KR20020045818A (en) | 2000-12-11 | 2000-12-11 | Fluorescent Lamp And Backlight Device With The Same |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020000075219A KR20020045818A (en) | 2000-12-11 | 2000-12-11 | Fluorescent Lamp And Backlight Device With The Same |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040029231A (en) * | 2002-09-25 | 2004-04-06 | 엘지.필립스 엘시디 주식회사 | Fluorescent Lamp And Baklight Device With The Same |
| KR101231714B1 (en) * | 2009-01-30 | 2013-02-08 | 주식회사 엘지화학 | Direct type backlight unit having improved lamp mura |
-
2000
- 2000-12-11 KR KR1020000075219A patent/KR20020045818A/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040029231A (en) * | 2002-09-25 | 2004-04-06 | 엘지.필립스 엘시디 주식회사 | Fluorescent Lamp And Baklight Device With The Same |
| KR101231714B1 (en) * | 2009-01-30 | 2013-02-08 | 주식회사 엘지화학 | Direct type backlight unit having improved lamp mura |
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