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GB/T 44390-2024: Print display - Measuring method of film uniformity
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GB/T 44390-2024	English	399	Add to Cart	4 days [Need to translate]	Print display - Measuring method of film uniformity

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GB/T 44390-2024: Print display - Measuring method of film uniformity

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ICS 31.030 CCSL90 National Standard of the People's Republic of China Printing display film uniformity test method Released on 2024-08-23 2025-03-01 Implementation State Administration for Market Regulation The National Standardization Administration issued

Table of Contents

Preface III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Step meter method (arbitration method) 2 4.1 Test Principle 2 4.2 Test Condition 2 4.3 Test Step 4 4.4 Result processing 6 5 White light interferometer method 7 5.1 Test Principle 7 5.2 Test conditions 7 5.3 Test Step 9 5.4 Result Processing 10 6 Test Report 11

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents" Drafting. Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents. This document was proposed and coordinated by the National Technical Committee for Semiconductor Equipment and Materials Standardization (SAC/TC203). This document was drafted by. BOE Technology Group Co., Ltd., Aoled (Shanghai) Optoelectronic Materials Technology Co., Ltd., Beijing Dingcai Technology Co., Ltd., China Electronics Technology Standardization Institute, Hefei BOE Zhuoyin Technology Co., Ltd., Hefei Dingcai Technology Co., Ltd., TCL Huaxing Optoelectronics Technology Co., Ltd., Jiangyin Runma Electronic Materials Co., Ltd., Guangdong Dongyi New Materials Technology Co., Ltd., Guangdong Ju Hua Printing Display Technology Co., Ltd., Shenzhen Yuguang New Materials Co., Ltd., Quzhou Inter Polymer Materials Co., Ltd., Shaoxing Xuyuan New Materials Technology Co., Ltd. The main drafters of this document are. Zhang Zhigang, Yang Jinglong, Li Xinguo, Xu Xiaoguang, Ma Xiaoyu, Dai Qing, Bi Yan, Sun Li, Shi Huaiting, Huang Yu, Cao Kewei, Wu Yiran, Zhao Junsha, Wang Kang, Wang Tie, Bao Jinbao, Qiao Juan, Gao Wenzheng, Ge Yeming, He Ke, Zhou Hui, Chen Jianping, Fu Dong, Yu Lei, Huang Weidong, Zhu Longshan, Yuan Peng, and Wang Xia. Printing display film uniformity test method

1 Scope

This document describes the test method for the uniformity of printed display films, mainly including sub-pixel uniformity, adjacent sub-pixel uniformity, short-range uniformity, Uniformity test method. This document is applicable to the use of probe-type surface profilers (hereinafter referred to as step profilers) and white light interferometers to measure the thickness of the surface of the sample with a range of 5nm to 105nm. A print showing the film uniformity test.

2 Normative references

The contents of the following documents constitute essential clauses of this document through normative references in this document. For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to This document. GB/T 20871.12 Organic light emitting diode display devices Part 1-2.Terms and text symbols

3 Terms and definitions

The terms and definitions defined in GB/T 20871.12 and the following apply to this document. 3.1 pixel In a matrix display, the smallest display unit that can perform the necessary display functions. NOTE For example, in a color display based on red, green, and blue (RGB) vertical stripes, three adjacent RGB dots form a pixel. [Source. GB/T 20871.12-2024, 3.5.45] 3.2 Subpixel The individual dots that make up a pixel. NOTE For example, in a color display based on RGB vertical stripes, each RGB dot is a sub-pixel. [Source. GB/T 20871.12-2024, 3.5.58] 3.3 Subpixel uniformity The thickness uniformity of the printed film within a sub-pixel. Note. It is used to characterize the uniformity of film formation of sub-pixels, which is related to the printing ink, the material and structure of the sub-pixel defining layer or the drying process. 3.4 The uniformity of the thickness of the printed film between adjacent sub-pixels. Note. It is used to characterize the uniformity of film formation of adjacent sub-pixels of the same color, and is related to the nozzle used. 3.5 The thickness uniformity of the printed film of multiple sub-pixels of the same color within a certain range. ...