Display panel and method of making the same
A technology for display panels and substrates, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc. It can solve problems such as inability to write and low efficiency of data signal writing, and achieve the effects of improving efficiency and reducing contact resistance
Active Publication Date: 2022-07-12
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Problems solved by technology
[0004] The invention provides a display panel and a preparation method thereof, which can solve the problem of low writing efficiency or even failure to write data signals due to high contact resistance between the source or drain and the active layer
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[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " The orientation or positional relationship indicated by "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation shown in the drawings Or the positional relationship is only for the convenience ...
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Abstract
The invention discloses a display panel and a preparation method thereof. The display panel includes: a substrate; a first metal layer, which is arranged on the substrate and includes a first metal layer part and a first metal layer two spaced apart from each other. a buffer layer, disposed on the first metal layer; a thin film transistor device layer, disposed on the buffer layer, including an active layer, a gate layer and a source-drain electrode layer, the source-drain electrode layer including a source layer electrode and drain electrode; wherein, the source electrode is electrically connected to a part of the first metal layer, the drain electrode is electrically connected to the first metal layer part, and when a data signal is written or released, the first metal layer is electrically connected. One part of a metal layer or two parts of the first metal layer form an electric field on the active layer, thereby reducing the contact resistance between the source and drain electrodes and the active layer, thereby effectively improving the efficiency of writing and releasing data signals on the display panel.
Description
technical field [0001] The present application relates to the field of display technology, and in particular, to a display panel and a manufacturing method thereof. Background technique [0002] OLED (Organic Light-Emitting Diode) display is a current-type organic light-emitting device that emits light through the injection and recombination of carriers, because of its thinness, high brightness, low power consumption and fast response. , high luminous efficiency, good flexibility, and can meet the new needs of consumers for display forms. [0003] When the OLED display panel is working, no matter in the process of signal writing or signal erasing, the switching thin film transistor (Switching TFT) works in the linear region, because the voltage between the source and the drain is low, and the source or the drain is relatively low. The contact resistance between the drain electrode and the active layer is relatively sensitive, and when the contact resistance is too high, the...
Claims
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IPC IPC(8): H01L27/12H01L21/77H01L27/32
CPCH01L27/1214H01L27/124H01L27/1259H10K59/12
Inventor 戴晨
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD