GB/T 32643-2016 in English
SUPERSEDEDFlat panel displays glass substrates surface waviness measurement method
- Issued on:2016-04-25
- Implemented on:2016-11-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$68.00
《GB/T 32643-2016平板显示器基板玻璃表面波纹度的测量方法》由TC203(全国半导体设备和材料标准化技术委员会)归口,主管部门为国家标准化管理委员会。
Introduction
1. Background and significance of the standard
The surface waviness of the substrate glass of flat panel displays is an important factor affecting the display quality. This standard GB/T32643-2016 specifies the measurement method using a stylus surface roughness meter, which is applicable to the surface waviness measurement of substrate glass for flat panel displays.
2. Comparison of standard frameworks
| Standard dimensions | GB/T32643-2016 | GB / T3 2 6 4 2—2 0 1 6 |
|---|---|---|
| Measurement object | Surface waviness of substrate glass | Surface roughness of substrate glass |
| Main parameters | Wf pd value (waviness height) | Ra value (average roughness) |
| Measurement method | Stylus surface roughness meter | Same instruments and equipment |
3. Analysis of the evolution of standard technology
This standard is based on GB/T1.1-2009 and introduces advanced Gaussian filter and 2CR filter technology. Compared with previous standards, clear requirements for pre-stroke and post-stroke are added to ensure more accurate measurement results.
4. Implementation suggestions
To ensure the effective implementation of the standard, it is recommended that:
- Strictly operate in accordance with the specified measurement conditions, including the selection of filter type and cut-off wavelength.
- Regularly calibrate the stylus surface roughness measuring instrument to ensure that the instrument accuracy meets the requirements.
- Establish a quality control process in mass production and refer to the statistical analysis method of measurement results.

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