OLED light-emitting device, display device and preparation method of OLED light-emitting device
A technology of light-emitting devices and light-emitting layers, which is applied in semiconductor/solid-state device manufacturing, electric solid-state devices, semiconductor devices, etc., and can solve problems such as chromaticity shift
Pending Publication Date: 2020-11-27
WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology
[0005] The purpose of the present invention is to provide an OLED light-emitting device, a display device using the OLED light-emitting device and a method for preparing the OLED light-emitting device, so as to overcome the existing OLED light-emitting device that the chromaticity will shift after changing the viewing angle The problem
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[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0030] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the a...
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Abstract
The invention provides an OLED light-emitting device, a display device adopting the OLED light-emitting device and a preparation method of the OLED light-emitting device. Transparent ITO is used as ananode layer of the OLED light-emitting device. A reflecting layer is arranged at the bottom of the anode layer; a dielectric layer is arranged between the anode layer and the reflecting layer; the reflecting layer, the dielectric layer and the anode layer form a first electrode; and the first electrode, the OLED light-emitting layer and the second electrode form an optical resonant cavity. Ny arranging the dielectric layer with a certain thickness, the length of the cavity body of the optical resonant cavity of the OLED light-emitting device is increased, so that the optical resonant cavity has an enhanced emission effect on light with multiple wavelengths in a light-emitting spectrum, and the problems of narrow viewing angle and chromaticity shift of the existing OLED light-emitting device due to a micro-cavity effect are solved.
Description
technical field [0001] The present application relates to the field of display technology, in particular to an OLED light-emitting device, a display device using the OLED light-emitting device, and a preparation method of the OLED light-emitting device. Background technique [0002] Compared with traditional liquid crystal flat panel display, organic light-emitting diode (Organic Light-emitting Diode, OLED) has the advantages of high efficiency, high contrast, high response speed, etc., and has been used more and more widely in recent years. According to the way of light emission, OLED can be divided into two types: bottom emission type and top emission type. The light emission efficiency of the bottom emission structure is limited by the aperture ratio of the panel, and it is difficult to effectively use the light source. To achieve the required brightness, the OLED light emitting device must Operating in a high-brightness state, its luminous efficiency is not high and its ...
Claims
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Login to View More IPC IPC(8): H01L51/52H01L27/32H01L51/56
CPCH10K59/12H10K50/81H10K50/816H10K50/818H10K50/852H10K59/1201H10K2102/103H10K71/00
Inventor 赵阳峰
Owner WUHAN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD