Patent ID: 11869266
Assignee: WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 14:
15. A manufacturing method of a display module, comprising following steps:
preparing a first substrate;
preparing a fingerprint identification module on the first substrate;
preparing a second substrate on the fingerprint identification module; and
preparing a functional layer of a display panel on the second substrate, wherein the functional layer comprises:
a second buffer layer prepared on the second substrate;
an active layer prepared on the second buffer layer;
a first insulating layer disposed on the active layer;
a source electrode connected to the active layer;
a drain electrode connected to the active layer;
a gate electrode disposed on the first insulating layer;
a second insulating layer disposed between the gate electrode and the source electrode and the drain electrode;
a pixel electrode layer connected to the source electrode or the drain electrode; and
a planarization layer disposed between the pixel electrode layer and the drain electrode and the source electrode; and

wherein the step of preparing the fingerprint identification module on the first substrate comprises:
preparing a driving circuit layer on the first substrate;
preparing a piezoelectric material layer on the driving circuit layer;
preparing an electrode layer on the piezoelectric material layer; and
preparing a first buffer layer on the electrode layer.