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A kind of preparation method of smart window

A technology of smart windows and substrates, applied in the field of OLED display, can solve the problems of low power consumption, complex structure, disadvantages, etc., and achieve the effects of reducing total reflection loss, large application potential, and simple structure

Active Publication Date: 2019-06-14
TRULY HUIZHOU SMART DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Conventional smart windows (Smart Window) can only adjust the light transmittance, but cannot realize independent display; if the smart window is integrated with other displays, although it can perform independent display, it has complex structure, high power consumption, and large thickness. insufficient
Although transparent Organic Light Emitting Diode (OLED) has lower power consumption and higher transmittance, it cannot achieve light cut-off effect, which is not conducive to the application in some places, especially privacy protection places ; For example, when changing clothes inside the car, it needs to be isolated from the outside world to watch

Method used

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  • A kind of preparation method of smart window
  • A kind of preparation method of smart window
  • A kind of preparation method of smart window

Examples

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Embodiment 1

[0033] Smart windows include two categories based on different OLED structures: Passive Matrix Organic Light Emitting Diode (PMOLED for short) and Active Matrix Organic Light Emitting Diode (AMOLED for short). ).

[0034] Picture 1-1 Shows the structure of a passive matrix organic light emitting diode PMOLED, including an anode part 11, an anode transparent conductive film ITO 12, an insulating layer (PR or PI) 13, a cathode part 21, a cathode transparent conductive film ITO 22, a cathode separator or a side wall 23 and cathode contactor 24, cathode metal strip (film) 25, a plurality of organic layers 30; Figure 1-2 for Picture 1-1 Schematic diagram of the cross-section in A.

[0035] The preparation method of the smart window involved in this embodiment is described as follows:

[0036] (1) Combining passive matrix organic light-emitting diode PMOLED and polymer dispersed liquid crystal (Polymer Dispersed Liquid Crystal, referred to as: PDLC) preparation, including the f...

Embodiment 2

[0055] Figure 5 It is a schematic diagram of the pixel structure of AMOLED; the pixel structure of AMOLED includes anode, cathode, organic layer, and TFT array.

[0056] The preparation method of the smart window involved in this embodiment is described as follows:

[0057] (1) Combining active matrix organic light-emitting diode AMOLED with polymer dispersed liquid crystal (Polymer Dispersed Liquid Crystal, referred to as: PDLC) preparation, including the following steps:

[0058] 1) Thin film transistor array preparation step: prepare a thin film transistor TFT array on the substrate, the TFT array includes one or more of amorphous silicon TFT, polysilicon TFT, oxide TFT, and organic TFT, preferably oxide TFT and organic TFT.

[0059] The TFT structure may be one or more of bottom gate bottom contact, bottom gate top contact, top gate bottom contact, top gate top contact, and double gate. If it is a bottom-gate TFT, either a BCE (Back Channel Etch, reverse channel etching...

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Abstract

The invention provides a method for preparing a smart window, the smart window includes a smart window based on passive matrix organic light emitting diodes and a smart window based on active matrix organic light emitting diodes, comprising: an anode deposition step, a substrate pattern making step, organic material evaporation Plating steps, electron injection layer manufacturing steps, cathode manufacturing steps, protective layer manufacturing steps, planarization layer and liquid crystal scanning electrode manufacturing steps, liquid crystal control unit manufacturing steps, liquid crystal filling steps, packaging steps. The present invention fills a specific liquid crystal material between the transparent OLED cathode and the back cover, which can not only reduce the loss of total reflection on the light-emitting surface of the OLED cathode, but also realize the free conversion of OLED transmission and reflection through power-on and power-off of the liquid crystal, and achieve intelligent control The purpose of light emission and independent display, so that the prepared smart window has a simple structure, thin thickness, low power consumption, privacy protection, and independent display functions. It has great application potential in many scenarios such as vehicles, shopping malls, and aviation.

Description

technical field [0001] The invention relates to the technical field of OLED display, in particular to a preparation method of an intelligent window. Background technique [0002] Conventional smart windows (Smart Window) can only adjust the light transmittance, but cannot realize independent display; if the smart window is integrated with other displays, although it can perform independent display, it has complex structure, high power consumption, and large thickness. insufficient. Although transparent Organic Light Emitting Diode (OLED) has lower power consumption and higher transmittance, it cannot achieve light cut-off effect, which is not conducive to the application in some places, especially privacy protection places ; For example, when changing clothes inside the car, it needs to be isolated from the outside world to watch. [0003] Therefore, it is necessary to develop a smart window that can not only reduce the total reflection loss of the OLED cathode light-emitt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/32H01L51/52H01L51/56G09G3/3208
CPCG09G3/3208H10K59/00H10K50/86H10K71/00
Inventor 何剑苏君海李建华
Owner TRULY HUIZHOU SMART DISPLAY
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