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An OLED light-emitting device with automatic brightness adjustment and its preparation method

A light-emitting device and automatic adjustment technology, applied in the field of OLED, can solve the problems of complex structure, low detection sensitivity and accuracy of OLED lamps, and achieve the effects of convenient luminous brightness, simple structure and convenient adjustment

Active Publication Date: 2019-02-12
GUAN YEOLIGHT TECH CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

However, by adding a photoelectric detection device, the luminous intensity of the OLED is controlled by feedback according to the brightness of the OLED screen, which makes the structure of the OLED lamp more complicated, and the detection sensitivity and accuracy are also low.

Method used

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  • An OLED light-emitting device with automatic brightness adjustment and its preparation method
  • An OLED light-emitting device with automatic brightness adjustment and its preparation method

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Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] Such as figure 1 and figure 2 As shown, the present invention provides an OLED light-emitting device with automatic brightness adjustment, including a substrate 1, a detection unit 2, a light-emitting unit 3 and a control device 4, wherein the detection unit 2 is arranged between the substrate 1 and the light-emitting unit 3, and its Comprising a first conductive layer 21, an organic semiconductor layer 22 and a second conductive layer 23 arranged on the organic semiconductor layer 22, the organic semiconductor layer 22 is arranged on the first conductive layer 21; the light-emitting unit 3 is composed of the second conductive layer 23, the organic layer 31 and cathode layer 32. The control device 4 is electrically connected ...

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Abstract

The invention discloses an OLED light-emitting device capable of automatically adjusting brightness and a preparation method. The OLED light-emitting device includes a substrate, a light-emitting unit and a detection unit, the detection unit is arranged between the substrate and the light-emitting unit and includes a first conducting layer, an organic semiconductor layer and a second conducting layer arranged on the organic semiconductor layer in sequence, and the first conducting layer is arranged on the substrate; and the OLED light-emitting device is also provided with a control device electrically connected with the light-emitting unit and the detection unit. The OLED light-emitting device provided by the invention utilizes a photovoltaic effect of the organic semiconductor layer, measures output voltage of the detection unit through the control device, judges a light-emitting intensity change situation of the light-emitting unit according to the magnitude of the output voltage, and adjusts current of the light-emitting unit, thereby enabling the OLED light-emitting device to maintain consistent luminance. The OLED light-emitting device provided by the invention can complete control of the light-emitting unit through the control device only by utilizing the photovoltaic effect of the organic semiconductor layer, and is simple in structure, and realization of adjustment of brightness of the OLED light-emitting device is facilitated.

Description

technical field [0001] The invention relates to the technical field of OLEDs, in particular to an OLED light-emitting device with automatic brightness adjustment and a preparation method thereof. Background technique [0002] As the service life of OLED increases, the brightness of OLED will decrease accordingly. In order to increase the brightness of OLED, a photoelectric detection device will be installed in the prior art. When the detection device detects that the brightness of OLED screen body decreases, it will The current method improves the brightness of the OLED screen. However, by adding a photoelectric detection device to feed back and control the luminous intensity of the OLED according to the brightness of the OLED screen, the structure of the OLED lamp becomes complicated, and the detection sensitivity and accuracy are also low. Contents of the invention [0003] Therefore, in order to control the luminous brightness of the OLED screen more easily, the presen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B37/02H01L51/50H01L51/56
Inventor 朱映光张国辉谢静李曼胡永岚
Owner GUAN YEOLIGHT TECH CO LTD
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