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Vacuum evaporation method and device of luminescent layer of organic light emitting diode display

A technology of light-emitting diodes and light-emitting layers, which is applied in vacuum evaporation plating, coating, sputtering plating, etc., can solve the problems of high alignment accuracy, high replacement frequency, and high production cost, and achieves improved production efficiency, evaporation and evaporation. The effect of accurate plating position and difficult color mixing

Active Publication Date: 2017-06-09
KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, using a mask plate for evaporation has high production costs, high alignment accuracy requirements, high replacement frequency, and prone to problems such as color mixing.

Method used

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  • Vacuum evaporation method and device of luminescent layer of organic light emitting diode display
  • Vacuum evaporation method and device of luminescent layer of organic light emitting diode display

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Embodiment Construction

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. A preferred embodiment of the invention is shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0021] It sho...

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Abstract

The present invention relates to a vacuum evaporation method and device of a luminescent layer of an organic light emitting diode display. The method comprises the steps of outputting the luminescent material particles via a luminescent material evaporation source; enabling the luminescent material particles to rub mutually to be electrified via a microwave oscillation generator; forming a guiding electric field between the sub-pixels of different colors, so that the electrified luminescent material particles are deposited in an area of the appointed sub-pixels on a display panel under the action of the guiding electric field, and accordingly, the luminescent layer of the appointed color is evaporated in the area. According to the present invention, the vacuum evaporation of the luminescent layer does not need a mask and a mask alignment mechanism, the vacuum evaporation position is accurate, the color mixture is not generated easily, the mask also does not need to be replaced, and the production efficiency of a vacuum evaporation technology is improved.

Description

technical field [0001] The invention relates to an organic light emitting diode (OLED) display, in particular to an evaporation method for a light emitting layer of an organic light emitting diode display, and also to an evaporation device for a light emitting layer of an organic light emitting diode display. Background technique [0002] OLED displays include sub-pixels of three colors: R (red), G (green), and B (blue). The light-emitting layers of sub-pixels of different colors need to be evaporated separately due to different materials, different evaporation target areas and patterns. The traditional luminescent layer evaporation is carried out using a mask (MASK). During the evaporation process, the mask is placed near the display substrate to block the organic light-emitting material particles outside the opening area of ​​the mask. The alignment of the mask opening area and the sub-pixel electrode area can make the evaporated organic light-emitting material particles d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/56H01L27/32C23C14/04C23C14/12C23C14/28C23C14/54
CPCC23C14/048C23C14/12C23C14/28C23C14/54H10K59/35H10K71/16H10K71/00
Inventor 王宝友高峰朱晓庆李维维
Owner KUNSHAN GO VISIONOX OPTO ELECTRONICS CO LTD
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