US 2019/0198584 A1 · MANUFACTURING METHOD OF A FLEXIBLE OLED DISPLAY PANEL

Abstract

The present disclosure discloses a manufacturing method of a flexible OLED display panel, including: providing a rigid substrate and forming a flexible substrate on the rigid substrate; forming a thin film transistor array layer on the flexible substrate; forming an OLED display unit on the thin film transistor array layer; forming an encapsulation layer on the OLED display unit; forming a protection cover on the encapsulation layer; and peeling the rigid substrate from the flexible substrate by using a laser lift-off process. The present disclosure is uses a coating process or a printing process to form each layer structure in a flexible OLED display panel. The manufacturing method effectively reduces the total thickness of the device and increases the adhesion between the layers so as to avoid the problem that the flexible OLED display panel is wrinkled or peeled when bent.

Claims20

Dependent claims

A manufacturing method of a flexible OLED display panel, wherein the flexible OLED display panel comprises a thin film transistor array layer, an OLED display unit, an encapsulation layer and a protection cover sequentially formed on a flexible substrate, and the manufacturing method comprises:

providing a rigid substrate and forming a flexible substrate on the rigid substrate by using a coating process;
forming a thin film transistor array layer on the flexible substrate by using an electronic printing process;
forming an OLED display unit on the thin film transistor array layer by using an electronic printing process;
forming an encapsulation layer on the OLED display unit by using an electronic printing process;
forming a protection cover on the encapsulation layer by using a coating process;
and
peeling the rigid substrate from the flexible substrate by using a laser lift-off process.

4 more elements

A manufacturing method of a flexible OLED display panel, wherein the flexible OLED display panel comprises a thin film transistor array layer, an OLED display unit, an encapsulation layer, a touch structure layer and a protection cover sequentially formed on a flexible substrate, and the manufacturing method comprises:

providing a rigid substrate and forming a flexible substrate on the rigid substrate by using a coating process;
forming a thin film transistor array layer on the flexible substrate by using an electronic printing process;
forming an OLED display unit on the thin film transistor array layer by using an electronic printing process;
forming an encapsulation layer on the OLED display unit by using an electronic printing process;
forming a touch structure layer on the encapsulation layer by using an electronic printing process;
forming a protection cover on the touch structure layer by using a coating process;
and
peeling the rigid substrate from the flexible substrate by using a laser lift-off process.

5 more elements

A manufacturing method of a flexible OLED display panel, wherein the flexible OLED display panel comprises a thin film transistor array layer, an OLED display unit, an encapsulation layer, a touch structure layer, a polarizer and a protection cover sequentially formed on a flexible substrate, and the manufacturing method comprises:

providing a rigid substrate and forming a flexible substrate on the rigid substrate by using a coating process;
forming a thin film transistor array layer on the flexible substrate by using an electronic printing process;
forming an OLED display unit on the thin film transistor array layer by using an electronic printing process;
forming an encapsulation layer on the OLED display unit by using an electronic printing process;
forming a touch structure layer on the encapsulation layer by using an electronic printing process;
forming a polarizer on the touch structure layer by using a coating process;
forming a protection cover on the polarizer by using a coating process;
and
peeling the rigid substrate from the flexible substrate by using a laser lift-off process.

6 more elements

Dependencies are inferred from the claim text.

Manufacturing method of a flexible oled display panel

Life of this patent

Manufacturing method of a flexible oled display panel

Life of this patent

Abstract

Claims20