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OLED display substrate and manufacturing method thereof, and OLED display device

A display substrate and substrate substrate technology, which is applied in semiconductor/solid-state device manufacturing, semiconductor devices, electrical components, etc., can solve the problems of large volume occupied by OLED displays and the inability to meet the thinning and thinning of OLED displays.

Active Publication Date: 2019-01-18
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The piezoelectric driver is used in the OLED display to realize the screen sound function, and the ultrasonic sensor is used to realize the fingerprint recognition function. The inventors have found that if the OLED display wants to realize the screen sound function and the fingerprint recognition function at the same time, it is necessary to set the piezoelectric driver and the ultrasonic sensor at the same time, so that OLED displays occupy a large volume, which cannot meet the needs of thinner and lighter OLED displays

Method used

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  • OLED display substrate and manufacturing method thereof, and OLED display device
  • OLED display substrate and manufacturing method thereof, and OLED display device
  • OLED display substrate and manufacturing method thereof, and OLED display device

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Embodiment 1

[0072] figure 1 Schematic diagram of the structure of an OLED display substrate provided by an embodiment of the present invention Figure one ,Such as figure 1 As shown, the embodiment of the present invention provides an OLED display substrate, including: a base substrate 10, an OLED device layer 20 disposed on the base substrate 10, and an encapsulation layer 30 for encapsulating the OLED device layer 20. The OLED display substrate also Includes: piezoelectric functional layer 40.

[0073] Specifically, the piezoelectric functional layer 40 is disposed on the side of the packaging layer 30 away from the base substrate 10, and is used to generate mechanical vibration under the action of electrical signals to generate ultrasonic waves or audible sound waves.

[0074] Optionally, the base substrate 10 is made of materials including glass, plastic, quartz, polyimide, etc., which are not limited in the embodiment of the present invention.

[0075] Specifically, the OLED device layer 20...

Embodiment 2

[0122] Based on the inventive concept of the foregoing embodiment, the embodiment of the present invention also provides a method for manufacturing an OLED display substrate. Figure 14 It is a flowchart of a manufacturing method of an OLED display substrate provided by an embodiment of the present invention, such as Figure 14 As shown, the manufacturing method of the OLED display substrate provided by the embodiment of the present invention specifically includes the following steps:

[0123] Step 100: Provide a base substrate.

[0124] Optionally, the manufacturing material of the base substrate includes: glass, plastic, quartz, polyimide, etc., which is not limited in the embodiment of the present invention.

[0125] Step 200, forming an OLED device layer on a base substrate.

[0126] Specifically, the OLED device layer includes a thin film transistor and an anode, a light emitting layer, and a cathode disposed on the thin film transistor. The thin film transistor includes an active...

Embodiment 3

[0172] Based on the inventive concept of the foregoing embodiment, an embodiment of the present invention also provides an OLED display device, including an OLED display substrate.

[0173] Among them, the OLED display substrate is the OLED display substrate provided in the first embodiment, and its implementation principles and effects are similar, and will not be repeated here.

[0174] Specifically, the OLED display device may be any product or component with a display function, such as an OLED panel, a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, and the like.

[0175] The drawings of the embodiments of the present invention only relate to the structures involved in the embodiments of the present invention, and other structures can refer to the usual designs.

[0176] For clarity, in the drawings used to describe the embodiments of the present invention, the thickness and size of layers or microstructures are exa...

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Abstract

The embodiment of the invention provides an OLED display substrate and a manufacturing method thereof, and an OLED display device. The OLED display substrate comprises a substrate, an OLED device layer arranged on the substrate and an encapsulation layer for encapsulating the OLED device layer, and a piezoelectric functional layer. A piezoelectric functional layer is disposed on the side of the encapsulation layer remote from the substrate and used for generating mechanical vibration under the action of an electrical signal to generate ultrasonic waves or audible sound waves. As that piezoelectric functional layer is arranged in the OLED display substrate, ultrasonic wave and audible sound wave are generate by mechanical vibration of the piezoelectric functional layer, and the screen soundgeneration and fingerprint identification functions are realized by adopt the same structure, the volume occupied by the OLED display is reduced, and the requirement of thinning the OLED display is met.

Description

Technical field [0001] The embodiment of the present invention relates to the field of display technology, in particular to an OLED display substrate and a manufacturing method thereof, and an OLED display device. Background technique [0002] Organic light-emitting diode (Organic Light-Emitting Device, abbreviated as OLED) display is a display that is different from traditional liquid crystal display (Liquid Crystal Display, abbreviated as LCD). It has active light emission, good temperature characteristics, low power consumption, fast response, and The advantages of bending, ultra-light and thin and low cost. Therefore, it has become one of the important development discoveries of a new generation of display devices, and has attracted more and more attention. [0003] The OLED display uses a piezoelectric driver to realize the screen sound function and an ultrasonic sensor to realize the fingerprint recognition function. The inventor found that if the OLED display realizes the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32H01L51/56
CPCH10K59/00H10K59/1201H10K71/00
Inventor 马国强柴媛媛孙阔汪杨鹏陈鹏唐国强代伟男
Owner BOE TECH GRP CO LTD
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