Conductive film on second surface of automobile electrochromic interior rearview mirror and production method thereof

An electrochromic and interior rearview mirror technology, applied in optical components, optics, instruments, etc., can solve problems such as difficult to achieve specular reflection color and difficult to meet customer requirements

Active Publication Date: 2018-09-11
YICHANG NANBO DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Difficult to achieve bright specular color, difficult to meet customer requirements

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The float glass is washed and dried.

[0021] Using silane and methane as reaction gases, a layer of SiC nanoparticles containing 1100Å, Eu 2 o 3 The nanoparticle layer is 1000Å, and the ITO layer is 1000Å; the specific preparation process parameters are:

[0022] RF power density: 700W / cm 2 , RF frequency: 12.55 MHz, deposition temperature: 280°C, deposition pressure: 120Pa, flow rate of silane diluted 12% (volume percentage) with hydrogen: 40 sccm, flow rate of methane (purity: 99.9995%): 50 sccm.

[0023] The transflective and semitransparent ITO conductive glass with required reflectance of 45% was obtained.

Embodiment 2

[0025] The float glass is washed and dried.

[0026] Using silane and methane as reaction gases, a layer of SiC nanoparticles containing 500Å, Eu 2 o 3 Nanoparticle layer 600Å; SiC nanoparticle layer 300Å, WO 3 The nanoparticle layer is 800Å; the ITO layer is 1200Å; the specific preparation process parameters are:

[0027] RF power density: 400 W / cm 2 , RF frequency: 13.56 MHz, deposition temperature: 300°C, deposition pressure: 70 Pa, hydrogen diluted 10% (volume percentage) silane flow rate: 30 sccm, methane (purity: 99.9995%) flow rate: 40 sccm. A transflective and semitransparent ITO conductive glass with a required reflectivity of 52.8% was obtained.

Embodiment 3

[0029] The float glass is washed and dried.

[0030] Using silane and methane as reaction gases, a layer of SiC nanoparticles containing 200Å, Eu 2 o 3 Nanoparticle layer 350Å; SiC nanoparticle layer 300Å, WO 3 Nanoparticle layer 250Å; SiC nanoparticle layer 400Å, Eu 2 o 3 The nanoparticle layer is 150Å; the ITO layer is 1600Å; the specific preparation process parameters are:

[0031] RF power density: 520 W / cm 2 , RF frequency: 13.56 MHz, deposition temperature: 280°C, deposition pressure: 80Pa, silane flow rate diluted 10% (volume percentage) with hydrogen: 50 sccm, methane (purity: 99.9995%) flow rate: 60 sccm.

[0032] A transflective and semitransparent ITO conductive glass with a required reflectivity of 55.1% was obtained.

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PUM

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Abstract

The invention discloses a conduction film of second face of electrochromism inside rear-view mirror, wherein the conduction film contains high refractive index material as priming coat and ITO film as the second face of conduction material; or the conduction film contains double-layer high refractive index material as priming coat and ITO film as the second face of conduction material; or the conduction film is composed of three-layer high refractive index material as priming coat and ITO film as the second face of conduction material. The high refractive index is combination of SiN or SiC and Eu2O3 or WO3. The multiple high refractive index layers and film thickness of the invention guarantee passivation efficiency of silicon wafer surface, at the same time, the two-layer high refractive index thin has effect of PID resistance, and the design film has good anti-reflection effect, which increases light interception rate of the surface of silicon wafer.

Description

technical field [0001] The invention relates to an automobile electrochromic interior rearview mirror, in particular to a conductive film on the second surface of an automobile electrochromic interior rearview mirror and a production method thereof. Background technique [0002] Ordinary car rearview mirrors only act as specular reflections and do not have anti-glare functions. When driving at night, the headlights of the following vehicles reflect too strongly, which will cause the driver's short-term dizziness and cause frequent accidents. The demand for driving safety has given birth to the emergence of semi-reflective and semi-transparent smart rearview mirrors that focus on driving records, reversing sensors, and the concept of car networking intelligence. The semi-reflective and semi-transparent silver mirrors and blue mirrors produced by various dielectric films that are popular on the market are used in semi-reflective and semi-transparent smart rearview mirror prod...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/116
CPCG02B1/116
Inventor 刘玉华方凤军何建军陈多洪蒙杜晓峰
Owner YICHANG NANBO DISPLAY
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