Organic light emitting display and preparation method thereof
A light-emitting display, organic technology, applied in the direction of electric solid-state devices, semiconductor devices, electrical components, etc., can solve the problems of uneven display, thin-film transistor drive current and power supply voltage deviation, etc., to achieve stable display brightness, better uniformity, The effect of reducing the pressure drop
Active Publication Date: 2022-03-08
SHENZHEN 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 organic light-emitting display and its preparation method, so as to solve the technical problem of uneven display caused by the deviation between the driving current and the power supply voltage in the driving process of the existing thin film transistors
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[0038] 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. In the description of the present application, it should be understood that the terms "first" and "second" are used for description purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.
[0039] Such as figure 1 As shown, this embodiment provides an organic light emitting display, and the organic light emitting display is defined with a di...
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Abstract
The invention discloses an organic light-emitting display and a preparation method thereof, the organic light-emitting display defines a display area and a non-display area surrounding the display area, the organic light-emitting display further comprises a substrate extending from the display area to the non-display area, and the substrate is provided with at least one through hole at a position corresponding to the non-display area; the display film layer is arranged on the surface of one side of the substrate and located in the display area; the metal layer is arranged on the surface of the side, away from the display film layer, of the substrate and extends to the non-display area from the display area; the surface cathode layer covers the display film layer, extends to the surface of the substrate and extends from the display area to the non-display area; and the connecting layer fills the through hole and is used for connecting the surface cathode layer and the metal layer. According to the invention, the impedance of the cathode of the organic light-emitting device can be reduced, the voltage drop is reduced, the display brightness is more stable, the uniformity is better, and the display quality of a display picture is improved.
Description
technical field [0001] The present application relates to the field of display technology, in particular to an organic light emitting display and a preparation method thereof. Background technique [0002] The organic light emitting diode (Organic Light Emitting Diode, OLED for short) display is one of the hotspots of flat panel displays today. Compared with a Liquid Crystal Display (LCD for short), an OLED display has the advantages of low energy consumption, low production cost, self-illumination, wide viewing angle, and fast response speed. Currently, OLED displays have begun to replace traditional LCD displays in electronic devices such as mobile phones, personal digital assistants (PDAs), and digital cameras. Pixel circuit design is the core technical content of OLED displays. [0003] In an OLED organic light emitting display, a thin film transistor is usually used to construct a pixel circuit to provide a corresponding driving current for an organic light emitting d...
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IPC IPC(8): H01L27/32
CPCH10K59/123H10K59/1213H10K59/1315Y02E10/549
Inventor 肖翔
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD