Anode back plate for 3D printing

Abstract

The invention provides an anode backboard for 3D printing. The anode backboard for 3D printing comprises a substrate and pixel structures which are arranged on the substrate and distributed in an array mode. The pixel structure comprises an anode of the anode backboard located on the substrate, a driving transistor electrically connected with the anode, and a switching transistor electrically connected with the driving transistor. The drain electrode of the driving transistor is electrically connected with the anode through the capacitor electrode layer; the anode backboard for 3D printing further comprises a conductive layer which is arranged between the drain electrode of the driving transistor and the capacitor electrode layer and comprises metal. The orthographic projection of the conductive layer on the substrate covers the orthographic projection of the active layer pattern on the substrate. According to the invention, the active layer pattern can be prevented from being damaged.

Description

technical field [0001] The invention relates to the technical field of 3D printing, and is used for an anode back plate for 3D printing. Background technique [0002] In the prior art, when making an anode backplane for 3D printing, when the size of the pixel area occupied by the pixel structure in the anode backplane is small, the driving transistors and switching transistors in the pixel structure cannot be reasonably arranged, resulting in inability to Increasing the aspect ratio of the driving transistor cannot improve the driving capability of the driving transistor. Moreover, in the prior art, the active layer of the transistor in the pixel structure is easily damaged. Contents of the invention [0003] The main purpose of the present invention is to provide an anode backplane for 3D printing and a 3D printing system, which solves the problem of pixels occupied by the pixel structure in the anode backplane when making an anode backplane for 3D printing in the prior ...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an anode backplane for 3D printing and a 3D printing system, which solves the problem of pixels occupied by the pixel structure in the anode backplane when making an anode backplane for 3D printing in the prior art. When the size of the region is small, it is impossible to improve the aspect ratio of the driving transistor, and solve the problem that the active layer of the transistor in the pixel structure is easily damaged in the prior art

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