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Parallel structure and preparation of flexible TFT drive bottom-emitting OLED/PLED (organic/polymer light-emitting diode)

A bottom emission, flexible technology, applied in electrical components, electrical solid devices, circuits, etc., can solve problems such as high defect rate and complex process

Inactive Publication Date: 2016-06-22
方圆环球光电技术盐城有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the defects and deficiencies of existing flexible TFT preparation and drive OLED / PLED existing drive design, propose the pixel drive circuit design and preparation ideas of OLED / PLED display, and effectively solve the compatibility and compatibility between flexible OLED / PLED and TFT Simplification and cost reduction of preparation process
Solve the problems of existing flexible OLED / PLED pixel drive, complex process and high defect rate due to multi-layer structure superposition design

Method used

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  • Parallel structure and preparation of flexible TFT drive bottom-emitting OLED/PLED (organic/polymer light-emitting diode)
  • Parallel structure and preparation of flexible TFT drive bottom-emitting OLED/PLED (organic/polymer light-emitting diode)
  • Parallel structure and preparation of flexible TFT drive bottom-emitting OLED/PLED (organic/polymer light-emitting diode)

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Embodiment Construction

[0017] Such as figure 1 As shown, the OLED / PLED pixel unit driving circuit of the present invention includes a flexible substrate, an OLED / PLED device, a flexible transistor, a transparent electrode, and various conductive metal layers. The specific production steps are as follows:

[0018] The first step is to deposit the required TCO and ZTO electrodes on the flexible substrate, or form the required electrode circuit pattern by etching.

[0019] In the second step, the cut and etched ITO and ZTO flexible substrates are first cleaned with detergent to remove impurities and oil stains on the surface, and then undergo three steps of cleaning agent ultrasonic cleaning, ultrapure water ultrasonic cleaning, and ethanol ultrasonic cleaning After ultrasonic cleaning, dry in an oven.

[0020] In the third step, the ITO and ZTO flexible substrates dried in the above steps are subjected to ultraviolet ozone treatment for 15 minutes in the ultraviolet ozone treatment chamber.

[0021...

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Abstract

The invention discloses a parallel designing structure and preparation of a flexible transistor (TFT) drive bottom-emitting flexible organic light emitting diode (OLED) / polymer light emitting diode (PLED) display. A pixel driving circuit comprises a flexible transparent electrode, a flexible driving transistor and a flexible organic light-emitting diode. A grid electrode of the transistor is connected with a control wire, a drain electrode is connected with the OLED / PLED electrode, and a source electrode is grounded or connected with other elements; the OLED / PLED and the TFT are arranged in parallel, and can be separately / simultaneously prepared through a solution method, the production process and the cost are simplified; furthermore, the flexible OLED / PLED pixel is the bottom-emitting structure, compared with a top-emitting device, the process is simpler, more efficient and the production cost is effectively reduced.

Description

technical field [0001] The invention relates to the field of organic light-emitting diodes, in particular to a design and structure for efficiently preparing flexible light-emitting device drivers. Background technique [0002] Flexible OLED / PLED (Organic / Polymer Light Emitting Diodes, Organic Light Emitting Diodes) has broad application prospects in the fields of display and solid-state lighting due to its advantages of thinness, softness and self-luminescence. Its excellent properties will influence the concept of next-generation new devices and the development of new products, such as wearable electronics and smart display technology. In order for flexible OLED / PLED to have complete functions of driving and realizing display, the applied driving elements and circuits must also be bendable. For example, each display pixel should be composed of transparent substrates, OLED / PLED devices, and thin-film organic transistors, and each unit needs to have similar flexible charact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32
CPCH10K59/121H10K59/12
Inventor 王希祖陈志宽
Owner 方圆环球光电技术盐城有限公司
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