KR101226224B1 - Oled lighting apparatus for manual controlling brightness of oled panels - Google Patents

Oled lighting apparatus for manual controlling brightness of oled panels Download PDF

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KR101226224B1
KR101226224B1 KR1020110087749A KR20110087749A KR101226224B1 KR 101226224 B1 KR101226224 B1 KR 101226224B1 KR 1020110087749 A KR1020110087749 A KR 1020110087749A KR 20110087749 A KR20110087749 A KR 20110087749A KR 101226224 B1 KR101226224 B1 KR 101226224B1
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South Korea
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brightness
oled
oled panel
constant current
control means
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KR1020110087749A
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Korean (ko)
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박종운
이종호
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한국생산기술연구원
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

PURPOSE: An OLED lighting device for passively controlling brightness of OLED panels is provided to operate a plurality of OLED panels in an outside, thereby controlling the brightness. CONSTITUTION: A plurality of driving circuit is connected to a plurality of OLED panels(110), respectively. A plurality of driving circuit controls brightness of each OLED panel. A rectifying means rectifies commercial power and outputs input power. A constant current control means switches the input power and outputs driving power. A brightness control means having a rectifying means(122) and a variable resistor varies a current in the driving power and controls brightness of each OLED panel. [Reference numerals] (121-1,121-2,121-3,121-4,121-8,121-7,121-6,121-5) Brightness control means; (123-1,123-2,123-3,123-4,123-8,123-7,123-6,123-5) Constant current control means; (AA) Commercial power; (BB,CC,DD,EE,FF,GG,HH,II) OLED panel

Description

ＯＬＥＤ 패널들의 밝기를 수동으로 조절하는 ＯＬＥＤ 조명장치{OLED lighting apparatus for manual controlling brightness of OLED panels}OLED lighting apparatus for manual controlling brightness of OLED panels

본 발명은 OLED 패널들의 밝기를 수동으로 조절하는 OLED 조명장치에 관한 것으로, 보다 구체적으로는 프레임 상면에 복수 개의 OLED 패널을 부착하여 조명으로 사용하는 경우, 각 OLED 패널의 밝기를 수동으로 조절할 수 있게 하여, 상기 OLED 패널들의 밝기 차이를 감소시킬 수 있는 OLED 패널들의 밝기를 수동으로 조절하는 OLED 조명장치에 관한 것이다.The present invention relates to an OLED lighting device for manually adjusting the brightness of the OLED panel, more specifically, when using a plurality of OLED panels attached to the upper surface of the frame when used as lighting, it is possible to manually adjust the brightness of each OLED panel Thus, the present invention relates to an OLED lighting apparatus for manually adjusting the brightness of OLED panels that can reduce the difference in brightness of the OLED panels.

일반적으로, OLED 조명패널은 기존 조명기구가 갖는 기능을 OLED를 이용하여 구현한 조명기구로써, 전력소비가 낮고 내구성은 높은 장점이 있으므로 기존 조명기구를 대체할 수 있는 다양한 형태의 OLED 조명패널이 연구 및 상용화되고 있다.In general, OLED lighting panels are luminaires that implement the functions of existing luminaires by using OLED. Since OLEDs have low power consumption and high durability, various types of OLED lighting panels that can replace existing luminaires are studied. And commercialized.

또한, 상기 OLED 조명패널은 주택 및 사무실 등의 실내 공간 또는 지하철 역사, 스크린 도어, 극장 포스터 등과 같이 실내에 설치되는 실내조명패널, 외부에 설치되는 외부조명패널 및 중소형의 POP(point of purchase; 구매시점광고)로 사용될 수 있다.In addition, the OLED lighting panel is an indoor lighting panel installed indoors such as indoor spaces such as houses and offices or subway stations, screen doors, theater posters, external lighting panels installed outside, and small and medium size POP (point of purchase; purchase). Point of view advertisement).

또한, 상기 OLED 조명패널을 복수 개로 구비하고, 복수 개의 OLED 조명패널들은 직렬 또는 병렬로 연결하여 하나의 프레임에서 설치할 수도 있는데, 이러한 경우에는 넓은 면적에서 많은 양의 빛을 발광할 수 있는 이점이 있다.In addition, the OLED lighting panel is provided in plurality, and the plurality of OLED lighting panels may be connected in series or in parallel to be installed in one frame. In this case, a large amount of light may be emitted in a large area. .

한편, 복수 개의 OLED 조명패널로 이루어진 조명기구를 사용하는 경우, 각 OLED 패널은 구동전압 또는 수명 등의 특성 차이로 인해 상기 각 OLED 패널의 밝기가 차이를 가지므로, 조명기구의 질이 저하되며, 또한, 시간이 경과함에 따라 상기 각 OLED 패널 간의 밝기 차이가 증가하는 문제점이 발생되었다.On the other hand, when using a lighting fixture consisting of a plurality of OLED lighting panel, each OLED panel has a difference in brightness of each OLED panel due to characteristics such as driving voltage or lifespan, the quality of the lighting fixture is deteriorated, In addition, a problem arises in that the brightness difference between the OLED panels increases as time passes.

또한, 상기 각 OLED 패널의 밝기를 균일하게 보상할 수 있는 자동보상회로를 구비할 수도 있으나, 상기 자동보상회로는 상기 각 OLED 패널로부터 빛을 검출할 수 있는 광검출기를 구비하여야 함에 따라, 상기 조명기구의 크기 증가, 미려함 저하 및 가격의 상승과 같은 문제점들이 발생된다. In addition, although it may be provided with an automatic compensation circuit for compensating uniformly the brightness of each OLED panel, the automatic compensation circuit should be provided with a photo detector for detecting light from each OLED panel, the illumination Problems arise such as increased size of the appliance, reduced beauty and increased prices.

본 발명자들은 복수 개의 OLED 패널로 이루어진 조명장치를 사용하는 경우, 각 OLED 패널의 밝기를 수동으로 조절할 수 있게 하여, 상기 OLED 패널들의 밝기 차이를 감소시킬 수 있게 하고자 연구 노력한 결과, OLED 패널들의 밝기를 수동으로 조절하는 OLED 조명장치의 기술적 구성을 개발하게 되어 본 발명을 완성하게 되었다.When the present inventors use a lighting device composed of a plurality of OLED panels, the inventors have been able to manually adjust the brightness of each OLED panel to reduce the difference in brightness of the OLED panels. The present invention has been completed by developing a technical configuration of an OLED lighting apparatus to be manually adjusted.

따라서, 본 발명의 목적은 복수 개의 OLED 패널을 외부에서 조작하여 밝기를 조절할 수 있는 OLED 패널들의 밝기를 수동으로 조절하는 OLED 조명장치를 제공하는 것이다.Accordingly, an object of the present invention is to provide an OLED lighting apparatus for manually adjusting the brightness of OLED panels that can be controlled by operating a plurality of OLED panels from the outside.

또한, 본 발명의 다른 목적은 복수 개의 OLED 패널 중, 하나의 OLED 패널의 밝기를 조절하는 경우, 다른 OLED 패널의 밝기에는 영향이 미치지 않게 하는 OLED 패널들의 밝기를 수동으로 조절하는 OLED 조명장치를 제공하는 것이다.In addition, another object of the present invention is to provide an OLED lighting apparatus for manually adjusting the brightness of the OLED panel so that, when adjusting the brightness of one of the plurality of OLED panels, the brightness of the other OLED panel does not affect. It is.

또한, 본 발명의 또 다른 목적은 각 OLED 패널에 공급되는 전류를 가변하여 상기 각 OLED 패널의 밝기를 조절할 수 있는 OLED 패널들의 밝기를 수동으로 조절하는 OLED 조명장치를 제공하는 것이다.In addition, another object of the present invention is to provide an OLED lighting apparatus for manually adjusting the brightness of the OLED panels that can adjust the brightness of each OLED panel by varying the current supplied to each OLED panel.

본 발명의 목적들은 이상에서 언급한 목적들로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

상기의 목적을 달성하기 위하여 본 발명은 복수 개의 OLED 패널; 및 상기 OLED 패널들에 일대일로 연결되고, 구동전원을 공급하여 상기 각 OLED 패널이 빛을 발광하게 하며, 상기 각 OLED 패널의 밝기를 조절하는 복수 개의 구동회로;를 포함하고, 상기 구동회로들은 서로 병렬로 연결되어, 하나의 OLED 패널의 밝기를 조절할 때 다른 OLED 패널로 공급되는 구동전원에 영향을 미치지 않게 하는 것을 특징으로 하는 OLED 조명장치를 제공한다.In order to achieve the above object, the present invention provides a plurality of OLED panels; And a plurality of driving circuits connected to the OLED panels in a one-to-one manner, supplying driving power so that each OLED panel emits light, and adjusting brightness of each OLED panel. It is connected in parallel, to provide an OLED lighting device characterized in that it does not affect the driving power supplied to another OLED panel when adjusting the brightness of one OLED panel.

바람직한 실시예에 있어서, 상기 구동회로는 외부에서 조작가능하게 설치되고, 상기 각 OLED 패널에 공급되는 구동전원의 전류를 가변하여 상기 각 OLED 패널의 밝기를 조절하는 밝기조절수단;을 구비한다.In a preferred embodiment, the driving circuit is provided to be operable from the outside, and the brightness control means for controlling the brightness of each OLED panel by varying the current of the driving power supplied to each OLED panel.

바람직한 실시예에 있어서, 상기 밝기조절수단은 상기 OLED 패널들의 밝기를 수동으로 균일하게 조절할 수 있게 한다.In a preferred embodiment, the brightness adjusting means makes it possible to manually and uniformly adjust the brightness of the OLED panels.

바람직한 실시예에 있어서, 상기 구동회로는 상용전원을 정류하여 입력전원을 출력하는 정류수단; 및 상기 입력전원을 스위칭하여 상기 구동전원을 출력하며, 상기 구동전원이 일정한 전류로 공급되도록 제어하는 정전류 제어수단;을 포함한다.In a preferred embodiment, the drive circuit includes rectifying means for rectifying commercial power to output the input power; And constant current control means for switching the input power to output the driving power, and controlling the driving power to be supplied with a constant current.

바람직한 실시예에 있어서, 상기 밝기조절수단은 상기 정류수단 및 상기 정전류 제어수단의 사이에 연결되고, 상기 입력전원의 크기를 조절하는 가변저항을 포함한다.In a preferred embodiment, the brightness adjusting means is connected between the rectifying means and the constant current control means, and includes a variable resistor for adjusting the size of the input power.

바람직한 실시예에 있어서, 상기 정전류 제어수단은 상기 입력전원의 전류가 기 설정된 임계치를 초과하지 않게 제어한다.In a preferred embodiment, the constant current control means controls so that the current of the input power does not exceed a predetermined threshold.

바람직한 실시예에 있어서, 상기 밝기조절수단은 상기 정전류 제어수단으로 PWM 신호를 공급하는 펄스폭 제어모듈;을 더 포함하고, 상기 펄스폭 제어모듈은 상기 PWM 신호를 가변하면서 출력하도록 구비되어, 상기 각 OLED 패널의 밝기를 조절한다.In a preferred embodiment, the brightness adjusting means further comprises a pulse width control module for supplying a PWM signal to the constant current control means, the pulse width control module is provided to vary and output the PWM signal, Adjust the brightness of the OLED panel.

바람직한 실시예에 있어서, 상기 정전류 제어수단은 정전류 드라이버 IC로 구비되고, 상기 정전류 드라이버 IC:는 상기 정류수단의 플러스 단에 연결되어 상기 입력전원을 입력받는 입력단; 상기 OLED 패널의 마이너스 단에 연결되어 상기 구동전원을 출력하는 출력단; 상기 밝기조절수단이 연결되고, 상기 입력전원의 전류를 조절하는 제 1전류조절단; 상기 펄스폭 제어모듈이 연결되고, 상기 PWM 신호를 입력받아 상기 출력단에서 출력되는 상기 구동전원의 전류를 조절하는 제 2전류조절단; 및 상기 정류수단의 마이너스 단에 연결된 접지단;을 포함한다.In a preferred embodiment, the constant current control means is provided with a constant current driver IC, the constant current driver IC: an input terminal connected to the plus end of the rectifying means for receiving the input power; An output terminal connected to the negative terminal of the OLED panel to output the driving power; A first current adjusting stage connected to the brightness adjusting unit and controlling a current of the input power; A second current control stage connected to the pulse width control module and configured to receive the PWM signal and adjust a current of the driving power output from the output terminal; And a ground terminal connected to the negative end of the rectifying means.

본 발명은 다음과 같은 우수한 효과를 가진다.The present invention has the following excellent effects.

먼저, 본 발명의 일실시예에 따른 OLED 조명장치에 의하면, 구동회로에 구비된 밝기조절수단이 외부에서 조작할 수 있게 구비되고, OLED 패널의 밝기를 제어하도록 이루어짐에 따라, 사용자가 상기 밝기조절수단을 조작하여 상기 OLED 패널의 밝기를 쉽고 편리하게 조절할 수 있는 효과를 얻을 수 있다.First, according to the OLED lighting apparatus according to an embodiment of the present invention, the brightness control means provided in the driving circuit is provided to be able to operate from the outside, the user is to adjust the brightness as it is made to control the brightness of the OLED panel By operating the means, it is possible to obtain an effect of easily and conveniently adjusting the brightness of the OLED panel.

또한, 본 발명의 일실시예에 따른 OLED 조명장치에 의하면, OLED 패널들과 일대일로 연결되어 구동전원을 공급하는 구동회로들이 서로 병렬로 연결됨에 따라, 상기 구동회로의 밝기조절수단을 조작하여 하나의 OLED 패널의 밝기를 조절하는 경우, 다른 OLED 패널의 밝기에는 영향을 미치지 않게 하는 효과를 얻을 수 있다.In addition, according to the OLED lighting apparatus according to an embodiment of the present invention, as driving circuits connected to the OLED panels in one-to-one and supplying driving power are connected in parallel with each other, one of the brightness adjusting means of the driving circuit is operated. When adjusting the brightness of the OLED panel, it is possible to obtain an effect that does not affect the brightness of the other OLED panel.

또한, 본 발명의 일실시예에 따른 OLED 조명장치에 의하면, 외부에서 수동으로 조작할 수 있는 가변저항 또는 펄스폭 제어모듈을 구비하여 OLED 패널로 공급되는 전류를 제어할 수 있으므로, 상기 각 OLED 패널에 공급되는 전류가 가변되면서 상기 각 OLED 패널의 밝기를 조절되는 효과를 얻을 수 있다.In addition, according to the OLED lighting apparatus according to an embodiment of the present invention, it is provided with a variable resistor or a pulse width control module that can be manually operated from the outside to control the current supplied to the OLED panel, each OLED panel By varying the current supplied to the OLED panel, the brightness of each OLED panel may be adjusted.

도 1은 본 발명의 일실시예에 따른 OLED 조명장치를 나타내는 도면.
도 2는 도 1의 OLED 조명장치를 나타내는 회로도.1 is a view showing an OLED lighting apparatus according to an embodiment of the present invention.
FIG. 2 is a circuit diagram illustrating an OLED lighting apparatus of FIG. 1. FIG.

본 발명에서 사용되는 용어는 가능한 현재 널리 사용되는 일반적인 용어를 선택하였으나, 특정한 경우는 출원인이 임의로 선정한 용어도 있는데 이 경우에는 단순한 용어의 명칭이 아닌 발명의 상세한 설명 부분에 기재되거나 사용된 의미를 고려하여 그 의미가 파악되어야 할 것이다.Although the terms used in the present invention have been selected as general terms that are widely used at present, there are some terms selected arbitrarily by the applicant in a specific case. In this case, the meaning described or used in the detailed description part of the invention The meaning must be grasped.

이하, 첨부된 도면에 도시된 바람직한 실시예를 참조하여 본 발명의 기술적 구성을 상세하게 설명한다.Hereinafter, the technical structure of the present invention will be described in detail with reference to preferred embodiments shown in the accompanying drawings.

그러나, 본 발명은 여기서 설명되는 실시예에 한정되지 않고 다른 형태로 구체화될 수도 있다. 명세서 전체에 걸쳐 동일한 참조번호는 동일한 구성요소를 나타낸다.However, the present invention is not limited to the embodiments described herein but may be embodied in other forms. Like reference numerals designate like elements throughout the specification.

도 1은 본 발명의 일실시예에 따른 OLED 조명장치를 나타내는 도면이며, 도 2는 도 1의 OLED 조명장치를 나타내는 회로도이다.1 is a view showing an OLED lighting apparatus according to an embodiment of the present invention, Figure 2 is a circuit diagram showing the OLED lighting apparatus of FIG.

도 1 내지 도 2를 참조하면, 본 발명의 일실시예에 따른 OLED 조명장치는, OLED(Organic light emitting diodes)로 이루어지며 빛을 발광하는 복수 개의 광원을 구비하되, 상기 광원들의 밝기를 수동으로 조절하여 상기 광원들의 밝기 차이를 감소시킬 수 있게 하며, OLED 패널(110) 및 구동회로(120)를 포함한다.1 to 2, an OLED lighting apparatus according to an exemplary embodiment of the present invention includes organic light emitting diodes (OLEDs) and includes a plurality of light sources emitting light, and manually adjusts brightness of the light sources. It is possible to reduce the difference in brightness of the light sources by adjusting, and includes an OLED panel 110 and a driving circuit 120.

상기 OLED 패널(Organic light emitting diodes Panel)(110)은 실질적으로 빛을 발광하도록 구비된 것으로, 형광성 또는 인광성 유기화합물에 전류가 흐르면 빛을 발광하는 유기 발광 소자로 이루어질 수 있다. 또한, 상기 OLED 패널(110)은 PCB 기판상에 다수의 OLED가 일정한 간격으로 배열되게 형성된 것일 수도 있다.The OLED panel 110 is substantially provided to emit light, and may be formed of an organic light emitting device that emits light when a current flows in a fluorescent or phosphorescent organic compound. In addition, the OLED panel 110 may be formed such that a plurality of OLEDs are arranged at regular intervals on a PCB substrate.

또한, 상기 OLED 패널(110)은 낮은 전압에서 구동이 가능하고 얇은 박막형으로 제조할 수 있으며, 조명장치로 사용하는 경우 부피의 감소 및 전력소모를 감소시킬 수 있는 이점이 있다.In addition, the OLED panel 110 can be driven at a low voltage and can be manufactured in a thin film type, and when used as an illumination device, there is an advantage of reducing the volume and power consumption.

또한, 상기 OLED 패널(110)은 복수 개로 구비되는데, 상기 OLED 패널(110)들은 프레임의 상면에서 가로 또는 세로 또는 가로 및 세로 방향으로 부착될 수 있다.In addition, the OLED panel 110 is provided in plurality, and the OLED panel 110 may be attached in a horizontal or vertical or horizontal and vertical directions on the upper surface of the frame.

또한, 상기 프레임은 상기 OLED 패널(110)들을 지지하도록 구비된 것으로, 조명장치의 규격 및 형태에 따라 다양한 형태 및 재질로 이루어질 수 있으며, 완성된 제조품의 외관을 형성하는 것일 수도 있다.In addition, the frame is provided to support the OLED panel 110, it may be made of a variety of forms and materials according to the specification and form of the lighting device, it may be to form the appearance of the finished manufactured product.

상기 구동회로(120)는 상기 OLED 패널(110)들의 밝기를 조절하기 위한 것으로, 상기 OLED 패널(110)로 구동전원을 공급하여 상기 각 OLED 패널(110)이 빛을 발광하게 하며, 밝기조절수단(121), 정류수단(122) 및 정전류 제어수단(123)을 포함한다.The driving circuit 120 is to adjust the brightness of the OLED panel 110, by supplying a driving power to the OLED panel 110 so that each OLED panel 110 emits light, brightness control means (121), the rectifying means 122 and the constant current control means 123.

또한, 상기 구동회로(120)는 복수 개로 구비되고, 복수 개의 구동회로(120)는 상기 OLED 패널(110)들에 일대일로 연결될 수 있으며, 상기 각 구동회로(120)는 후술될 밝기조절수단(121) 및 정전류 제어수단(123)을 구비할 수 있다. 한편, 상기 정류수단(122)은 예외적으로 하나만을 구비할 수 있다.In addition, the driving circuit 120 may be provided in plural, and the plurality of driving circuits 120 may be connected to the OLED panels 110 in a one-to-one manner, and each driving circuit 120 may include brightness adjusting means (described later). 121 and the constant current control means 123. On the other hand, the rectifying means 122 may be provided with only one exception.

또한, 상기 구동회로(120)들은 상기 각 OLED 패널(110)의 밝기를 조절할 수 있도록 구비되는데, 상기 각 구동회로(120)는 서로 병렬로 연결되어 하나의 OLED 패널(110)의 밝기를 조절할 때 다른 OLED 패널(110)로 공급되는 구동전원에 영향을 미치지 않도록 형성된다.In addition, the driving circuits 120 are provided to adjust the brightness of each OLED panel 110, each of the driving circuit 120 is connected in parallel to each other when adjusting the brightness of one OLED panel 110 It is formed so as not to affect the driving power supplied to the other OLED panel 110.

즉, 상기 구동회로(120)들 중 하나의 구동회로(120)에 하나의 OLED 패널(110)이 연결된 구조를 가지며, 상기 하나의 구동회로(120)를 통해 상기 하나의 OLED 패널(110)의 밝기를 조절하는 경우 다른 OLED 패널(110)의 밝기에는 영향이 미치지 않게 되는 것이다. That is, one OLED panel 110 is connected to one driving circuit 120 of the driving circuits 120, and the OLED panel 110 is connected to each other through the driving circuit 120. When the brightness is adjusted, the brightness of the other OLED panel 110 is not affected.

따라서, 상기 구동회로(120)들은 상기 OLED 패널(110) 중 사용자의 필요에 따라 밝기를 조절하고자 하는 OLED 패널(110)의 밝기만을 조절할 수 있게 하여, 상기 OLED 패널(110)들의 밝기 차이를 균일하게 조절할 수 있게 하는 것이다.Therefore, the driving circuits 120 can adjust only the brightness of the OLED panel 110 to adjust the brightness according to the user's needs of the OLED panel 110, thereby uniforming the brightness difference of the OLED panel 110 To adjust it.

또한, 상기 밝기조절수단(121)은 상기 OLED패널의 밝기를 조절하기 위해 구비된 것으로, 사용자가 외부에서 수동으로 조작할 수 있도록 외부로 노출된 구조로 형성되며, 상기 각 OLED 패널(110)에 공급되는 구동전원의 전류를 가변하여 상기 각 OLED 패널(110)의 밝기를 조절하도록 구비될 수 있다.In addition, the brightness adjusting means 121 is provided to adjust the brightness of the OLED panel, is formed in a structure exposed to the outside so that the user can operate manually from the outside, to each OLED panel 110 The brightness of each OLED panel 110 may be adjusted by varying a current of the driving power supplied.

또한, 상기 사용자는 상기 밝기조절수단(121)을 조작하여 상기 각 OLED 패널(110)들의 밝기를 수동으로 조절할 수 있으므로, 복수 개의 OLED 패널 중 밝기가 다른 OLED 패널을 밝기를 조절하여 복수 개의 OLED패널의 밝기 차이를 감소시키고 균일한 밝기를 가지도록 할 수 있는 것이다.In addition, since the user can manually adjust the brightness of each OLED panel 110 by operating the brightness adjusting means 121, a plurality of OLED panels by adjusting the brightness of the OLED panel having a different brightness among the plurality of OLED panels It is possible to reduce the brightness difference of and to have a uniform brightness.

또한, 상기 밝기조절수단(121)은 상기 각 OLED 패널(110)의 개수만큼 구비되는 것이 바람직하며, 본 발명의 일실시예에서는 8개의 OLED 패널(110)이 구비됨에 따라 상기 밝기조절수단(121-1, 121-2, 121-3, 121-4, 121-5, 121-6, 121-7, 121-8)을 8개로 구비하였으나, 상기 OLED 패널(110) 및 상기 밝기조절수단(121)은 더 많거나, 적을 수도 있다.In addition, the brightness adjusting means 121 is preferably provided as the number of each of the OLED panel 110, in one embodiment of the present invention according to the eight OLED panel 110 is provided with the brightness adjusting means 121 -1, 121-2, 121-3, 121-4, 121-5, 121-6, 121-7, 121-8, but provided with eight, the OLED panel 110 and the brightness control means 121 ) May be more or less.

또한, 상기 밝기조절수단(121)은 가변저항(121a)으로 구비할 수 있는데, 상기 가변저항(121a)은 상기 구동회로(120)로 입력되는 입력전원의 크기를 조절하여 상기 구동전원의 전류를 조절하게 된다. 또한, 상기 가변저항(121a)은 후술될 정류수단(122) 및 정전류 제어수단(123)의 사이에 연결될 수 있다. In addition, the brightness control means 121 may be provided as a variable resistor (121a), the variable resistor (121a) by adjusting the size of the input power input to the drive circuit 120 to adjust the current of the drive power. Will be adjusted. In addition, the variable resistor 121a may be connected between the rectifying means 122 and the constant current control means 123 which will be described later.

한편, 상기 밝기조절수단(121)은 PWM 신호를 공급하는 펄스폭 제어모듈(121b)을 더 구비할 수도 있는데, 상기 펄스폭 제어모듈(121b)은 상기 가변저항(121a)과 같이 상기 OLED 패널(110)의 밝기를 조절하는 기능을 갖는다.On the other hand, the brightness control means 121 may further include a pulse width control module 121b for supplying a PWM signal, the pulse width control module 121b is the OLED panel (like the variable resistor 121a) 110) to adjust the brightness.

또한, 상기 펄스폭 제어모듈(121b)은 상기 PWM 신호를 후술될 정전류 제어수단(123)으로 출력하도록 형성될 수 있으며, 상기 PWM 신호를 가변하면서 출력하여, 상기 PWM 신호에 따라 후술될 정전류 제어수단(123)의 스위칭을 제어하면서 상기 각 OLED 패널(110)의 밝기가 조절되게 한다. 또한, 상기 펄스폭 제어모듈(121b)은 PWM 발생기로 구비할 수 있다.In addition, the pulse width control module 121b may be formed to output the PWM signal to the constant current control means 123 to be described later, and outputs the PWM signal while varying, constant current control means to be described later in accordance with the PWM signal The brightness of each OLED panel 110 is adjusted while controlling the switching of 123. In addition, the pulse width control module 121b may be provided as a PWM generator.

또한, 상기 밝기조절수단(121)은 상기 가변저항과 상기 정류수단의 사이에 저항(121c)을 더 구비할 수도 있다. In addition, the brightness adjusting means 121 may further include a resistor 121c between the variable resistor and the rectifying means.

또한, 상기 정류수단(122)은 상용전원을 정류하여 입력전원을 출력하기 위한 것으로, 상기 상용전원을 스위칭하여 상기 입력전원으로 출력하도록 구비할 수 있으며, 전력용 트랜지스터를 포함하는 반도체 소자를 스위치로 사용하여 상기 상원전원을 스위칭하도록 구비할 수 있다.In addition, the rectifying means 122 is to rectify the commercial power to output the input power, may be provided to switch the commercial power to output to the input power, a semiconductor device including a power transistor to the switch It can be provided to switch the Senate power using.

또한, 상기 정류수단(122)은 교류전원인 상기 상용전원을 직류전원으로 바꾼 다음, 상기 직류전원을 일정 주파수를 갖는 고주파 교류전원으로 바꾸며, 상기 고주파 교류전원을 고주파 트랜스를 이용하여 전압을 강압하여 일정한 전압으로 조절한 후 정류 및 평활회로를 통해 다시 직류전원인 상기 입력전원으로 출력하도록 구비할 수 있을 것이다.In addition, the rectifying means 122 changes the commercial power source, which is an AC power source, to a DC power source, and then changes the DC power source to a high frequency AC power source having a predetermined frequency. After adjusting to the voltage it may be provided to output to the input power source of direct current through the rectification and smoothing circuit.

또한, 상기 정류수단(122)은 스위칭 방식의 SMPS(Switching Mode Power Supply)로 구비할 수 있을 것이다.In addition, the rectifying means 122 may be provided as a switching mode power supply (SMPS) of the switching method.

또한, 상기 정전류 제어수단(123)은 상기 입력전원을 스위칭하여 상기 구동전원으로 출력하도록 구비된 것으로, 예컨대, 부하의 변동 또는 상기 입력전원의 전압이 변동되더라도 상기 구동전원이 일정한 전류로 공급되도록 제어하게 된다.In addition, the constant current control means 123 is provided to switch the input power to output to the driving power, for example, the control so that the driving power is supplied with a constant current even if the load fluctuations or the voltage of the input power is changed. Done.

또한, 상기 정전류 제어수단(123)은 상기 입력전원을 스위칭하여, 상기 입력전원의 전류가 기 설정된 임계치를 초과하지 않게 제어하게 된다. 이때, 상기 임계치는 상기 정전류 제어수단(123) 또는 상기 구동회로(120)를 제조 시 일정한 값으로 설정될 수 있으며, 상기 정전류 제어수단(123) 및 상기 구동회로(120)를 포함하는 조명장치가 완제품으로 제조된 이후에 일정한 값으로 설정될 수도 있다. 즉, 상기 정전류 제어수단(123)은 상기 임계치에 따라 상기 입력전원의 전류의 최대값이 일정한 값으로 제어하게 된다. In addition, the constant current control means 123 switches the input power so that the current of the input power does not exceed a preset threshold. In this case, the threshold value may be set to a constant value when the constant current control means 123 or the driving circuit 120 is manufactured, and the lighting apparatus including the constant current control means 123 and the driving circuit 120 includes It may also be set to a constant value after it has been manufactured to the finished product. That is, the constant current control means 123 controls the maximum value of the current of the input power source to a constant value according to the threshold value.

또한, 상기 정전류 제어수단(123)은 상기 OLED 패널로 상기 구동전원을 공급하여야 하므로 상기 OLED 패널(110)들의 개수만큼 구비하는 것이 바람직하며, 본 발명의 일실시예에서는 상기 OLED 패널(110)들이 8개로 구비됨에 따라 상기 정전류 제어수단(123-1, 123-2, 123-3, 123-4, 123-5, 123-6, 123-7, 123-8)도 8개로 구비하였으나, 상기 OLED 패널(110) 및 상기 정전류 제어수단(123)은 더 많거나, 적을 수 있다.In addition, since the constant current control means 123 should supply the driving power to the OLED panel, the constant current control means 123 may be provided as many as the number of the OLED panels 110. In one embodiment of the present invention, the OLED panels 110 may be provided. As it is provided with eight, the constant current control means (123-1, 123-2, 123-3, 123-4, 123-5, 123-6, 123-7, 123-8) is also provided with eight, but the OLED The panel 110 and the constant current control means 123 may be more or less.

또한, 상기 정전류 제어수단(123)은 정전류 드라이버 IC로 구비할 수 있으며, 상기 정전류 드라이버 IC는 입력단(123a), 출력단(123b), 제 1전류조절단(123c), 제 2전류조절단(123d) 및 접지단(123e)을 포함한다.In addition, the constant current control means 123 may be provided as a constant current driver IC, and the constant current driver IC includes an input terminal 123a, an output terminal 123b, a first current regulating stage 123c, and a second current regulating stage 123d. ) And a ground terminal 123e.

또한, 상기 입력단(123a)은 상기 정류수단(122)의 플러스 단에 연결되는 것으로, 상기 정류수단(122)으로부터 상기 입력전원을 입력받도록 구비된다.In addition, the input terminal 123a is connected to the plus terminal of the rectifying means 122, and is provided to receive the input power from the rectifying means 122.

또한, 상기 출력단(123b)은 상기 OLED 패널(110)의 마이너스 단에 연결된 것으로, 상기 OLED 패널(110)로 상기 구동전원을 출력하도록 구비된다.In addition, the output terminal 123b is connected to the negative terminal of the OLED panel 110 and is provided to output the driving power to the OLED panel 110.

또한, 상기 제 1전류조절단(123c)은 상기 밝기조절수단(121)에 연결된 것으로, 상기 밝기조절수단(121)의 제어에 의해 상기 입력전원의 전류를 조절하도록 구비된다.In addition, the first current adjusting stage 123c is connected to the brightness adjusting means 121 and is provided to adjust the current of the input power by the control of the brightness adjusting means 121.

또한, 상기 제 2전류조절단(123d)은 상기 펄스폭 제어모듈(121b)에 연결된 것으로, 상기 펄스폭 제어모듈(121b)로부터 상기 PWM 신호를 입력받아 상기 출력단(123b)에서 출력되는 상기 구동전원의 전류를 조절하도록 구비된다.In addition, the second current control stage 123d is connected to the pulse width control module 121b, and receives the PWM signal from the pulse width control module 121b and is output from the output terminal 123b. It is provided to adjust the current.

또한, 상기 접지단(123e)은 상기 정류수단(122)의 마이너스 단에 연결된 것으로, 상기 정전류 제어수단(123)의 잉여전원을 상기 정류수단(122)으로 출력하도록 구비된다.In addition, the ground terminal 123e is connected to the negative terminal of the rectifying means 122, and is provided to output the surplus power of the constant current control means 123 to the rectifying means 122.

이상에서 살펴본 바와 같이 본 발명은 바람직한 실시예를 들어 도시하고 설명하였으나, 상기한 실시예에 한정되지 아니하며 본 발명의 정신을 벗어나지 않는 범위 내에서 당해 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 의해 다양한 변경과 수정이 가능할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, Various changes and modifications will be possible.

110 : OLED 패널 120 : 구동회로
121 : 밝기조절수단 121a : 가변저항
121b : 펄스폭 제어모듈 122 : 정류수단
123 : 정전류 제어수단 123a : 입력단
123b : 출력단 123c : 제 1전류조절단
123d : 제 2전류조절단 123e : 접지단110: OLED panel 120: drive circuit
121: brightness control means 121a: variable resistor
121b: pulse width control module 122: rectification means
123: constant current control means 123a: input terminal
123b: output stage 123c: first current regulation stage
123d: second current control stage 123e: ground terminal

Claims (8)

삭제delete 삭제delete 삭제delete 삭제delete 복수 개의 OLED 패널; 및
상기 OLED 패널들에 일대일로 연결되고, 구동전원을 공급하여 상기 각 OLED 패널이 빛을 발광하게 하며, 상기 각 OLED 패널의 밝기를 조절하는 복수 개의 구동회로;를 포함하고,
상기 구동회로들이 서로 병렬로 연결되어, 하나의 OLED 패널의 밝기를 조절할 때 다른 OLED 패널로 공급되는 구동전원에 영향을 미치지 않게 구비되며,
상기 구동회로들은,
상용전원을 정류하여 입력전원을 출력하는 정류수단;
상기 입력전원을 스위칭하여 상기 구동전원을 출력하며, 상기 구동전원이 일정한 전류로 공급되도록 제어하는 정전류 제어수단; 및
외부에서 조작가능하게 설치되고, 상기 각 OLED 패널에 공급되는 구동전원의 전류를 가변하여 상기 각 OLED 패널의 밝기를 조절하는 밝기조절수단;을 포함하고,
상기 밝기조절수단은,
상기 정류수단 및 상기 정전류 제어수단의 사이에 연결되고 상기 입력전원의 크기를 조절하는 가변저항을 포함하며,
상기 OLED 패널들의 밝기를 수동으로 균일하게 조절할 수 있는 것을 특징으로 하는 OLED 조명장치.
A plurality of OLED panels; And
And a plurality of driving circuits connected to the OLED panels in a one-to-one manner, supplying driving power so that each OLED panel emits light, and adjusting brightness of each OLED panel.
The driving circuits are connected in parallel to each other, so as not to affect the driving power supplied to the other OLED panel when adjusting the brightness of one OLED panel,
The driving circuits,
Rectifying means for rectifying commercial power and outputting input power;
Constant current control means for switching the input power to output the driving power and controlling the driving power to be supplied with a constant current; And
It is installed to be operable from the outside, the brightness control means for controlling the brightness of each OLED panel by varying the current of the driving power supplied to each OLED panel;
The brightness control means,
A variable resistor connected between the rectifying means and the constant current control means to adjust the size of the input power source,
OLED lighting apparatus, characterized in that the brightness of the OLED panels can be manually and uniformly adjusted.
제 5항에 있어서,
상기 정전류 제어수단은 상기 입력전원의 전류가 기 설정된 임계치를 초과하지 않게 제어하는 것을 특징으로 하는 OLED 조명장치.
6. The method of claim 5,
And the constant current control means controls the current of the input power not to exceed a preset threshold.
제 5항에 있어서,
상기 밝기조절수단은 상기 정전류 제어수단으로 PWM 신호를 공급하는 펄스폭 제어모듈;을 더 포함하고,
상기 펄스폭 제어모듈은 상기 PWM 신호를 가변하면서 출력하도록 구비되어, 상기 각 OLED 패널의 밝기를 조절하는 것을 특징으로 하는 OLED 조명장치.
6. The method of claim 5,
The brightness adjusting means further includes a pulse width control module for supplying a PWM signal to the constant current control means,
The pulse width control module is configured to output the PWM signal while varying, OLED lighting apparatus, characterized in that for adjusting the brightness of each OLED panel.
제 7항에 있어서, 상기 정전류 제어수단은 정전류 드라이버 IC로 구비되고,
상기 정전류 드라이버 IC:는
상기 정류수단의 플러스 단에 연결되어 상기 입력전원을 입력받는 입력단;
상기 OLED 패널의 마이너스 단에 연결되어 상기 구동전원을 출력하는 출력단;
상기 밝기조절수단이 연결되고, 상기 입력전원의 전류를 조절하는 제 1전류조절단;
상기 펄스폭 제어모듈이 연결되고, 상기 PWM 신호를 입력받아 상기 출력단에서 출력되는 상기 구동전원의 전류를 조절하는 제 2전류조절단; 및
상기 정류수단의 마이너스 단에 연결된 접지단;을 포함하는 것을 특징으로 하는 OLED 조명장치.
The method of claim 7, wherein the constant current control means is provided with a constant current driver IC,
The constant current driver IC:
An input terminal connected to a plus terminal of the rectifying means to receive the input power;
An output terminal connected to the negative terminal of the OLED panel to output the driving power;
A first current adjusting stage connected to the brightness adjusting unit and controlling a current of the input power;
A second current control stage connected to the pulse width control module and configured to receive the PWM signal and adjust a current of the driving power output from the output terminal; And
And an earth terminal connected to the minus end of the rectifying means.
KR1020110087749A 2011-08-31 2011-08-31 Oled lighting apparatus for manual controlling brightness of oled panels KR101226224B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005049822A (en) 2003-07-11 2005-02-24 Seiko Epson Corp Electrooptical device and method for driving same, and electronic apparatus
KR100896413B1 (en) 2008-10-31 2009-05-08 주식회사 포트론 Led display board
KR20110024018A (en) * 2009-09-01 2011-03-09 주식회사 화인 The led light power control method and circuit
KR20120026360A (en) * 2010-09-09 2012-03-19 심현섭 Led lamp driving apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005049822A (en) 2003-07-11 2005-02-24 Seiko Epson Corp Electrooptical device and method for driving same, and electronic apparatus
KR100896413B1 (en) 2008-10-31 2009-05-08 주식회사 포트론 Led display board
KR20110024018A (en) * 2009-09-01 2011-03-09 주식회사 화인 The led light power control method and circuit
KR20120026360A (en) * 2010-09-09 2012-03-19 심현섭 Led lamp driving apparatus

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