A kind of organic light-emitting display device and preparation method thereof
A light-emitting display, organic technology, used in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve problems such as color coordinate shift, achieve the effect of simple process, improved display quality, and reduced area
Active Publication Date: 2019-02-19
CHENGDU VISTAR OPTEOLECTRONICS CO LTD
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Problems solved by technology
[0011] Therefore, what the present invention aims to solve is the problem that the light of the organic light-emitting diode in the existing bottom-emitting organic light-emitting display device needs to penetrate the insulating material layer with a large refractive index such as silicon nitride, which may easily cause a serious shift in color coordinates. Organic light-emitting display device with small color coordinate shift and simple preparation process and preparation method thereof
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[0040] 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.
[0041] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of the invention to those skilled in the art, and the present invention will only be defined by the appended claims. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. It will be understood that when an element such as a layer, region or substrate is referred to as being "formed on" or "disposed on" another element, it can be directly on the other element or present middle element. In contrast, when an element is referred to a...
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The invention provides an organic light emitting display. An organic light emitting diode (OLED) is directly arranged on a substrate, the amount of film layers penetrated by emergent light of the OLED is reduced, the color coordinate offset of the OLED is reduced, and the display quality is improved. A source electrode and a drain electrode in an insulation layer of a thin film transistor can form a capacitor, the area of a non-light-emitting area is greatly reduced, and the aperture ratio of the display is improved. The invention provides a preparation method of the organic light emitting display. According to the preparation method, the steps of preparing a planarization layer and an interlayer insulation layer between the isolated source / drain electrode layer and the insulation layer are omitted, the source electrode and the drain electrode in the insulation layer of the thin film transistor can form the capacitor to greatly reduce the production steps, the technology is simple, and the preparation cost is effectively reduced.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a novel organic light-emitting display device and a preparation method thereof. Background technique [0002] Organic Light-Emitting Diode (English full name Organic Light-Emitting Diode, referred to as OLED) is an active light-emitting device, which has the advantages of low power consumption, surface emission, and thinner volume. It is currently one of the most concerned technologies in flat panel display technology. [0003] Active Matrix Organic Light Emitting Display (English full name Active Matrix Organic Lighting Emitting Display, referred to as AMOLED), the use of thin film transistors (English full name ThinFilmTransistor, referred to as TFT), with capacitor storage signals, to control the brightness and grayscale performance of organic light emitting diodes in pixel units . Each individual organic light-emitting diode has a complete cathode, an organic functional lay...
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IPC IPC(8): H01L27/32H01L21/77
Inventor 敖伟朱少鹏罗志忠刘金强袁波高胜刘玉成
Owner CHENGDU VISTAR OPTEOLECTRONICS CO LTD