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GB/T 18910.62-2019 English PDF

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US$724.00 · In stock
Delivery: <= 7 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 18910.62-2019: Liquid crystal display devices -- Part 6-2: Measuring methods for liquid crystal display modules -- Reflective type
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 18910.62-2019	724	Add to Cart	7 days	Liquid crystal display devices -- Part 6-2: Measuring methods for liquid crystal display modules -- Reflective type	Valid

Similar standards

SJ/T 11141 SJ/T 11281 GB/T 18910.2 GB/T 18910.103 GB/T 18910.64 GB/T 18910.63

Basic data

Standard ID: GB/T 18910.62-2019 (GB/T18910.62-2019)
Description (Translated English): Liquid crystal display devices -- Part 6-2: Measuring methods for liquid crystal display modules -- Reflective type
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L47
Classification of International Standard: 31.120
Word Count Estimation: 38,338
Date of Issue: 2019-08-30
Date of Implementation: 2020-03-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 18910.62-2019: Liquid crystal display devices -- Part 6-2: Measuring methods for liquid crystal display modules -- Reflective type

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Liquid crystal display devices - Part 6-2. Measuring methods for liquid crystal display modules - Reflective type ICS 31.120 L47 National Standards of People's Republic of China Liquid crystal display device Part 6-2. Liquid crystal display module test method Reflective Part 6-2. Measuring method for liquidcrystaldisplaymodules- Reflectivetype (IEC 61747-6-2..2011, IDT) Published on.2019-08-30 2020-03-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Lighting and lighting geometry 1 3.1 Reflective liquid crystal display measurement method introduction 1 3.2 Coordinate system for observation direction 2 3.3 Basic lighting geometry 2 3.4 Implementation of lighting geometry 3 4 Standard measuring equipment and settings 5 4.1 Optical Measurement Equipment (LMD) 5 4.2 Positioning and Calibration 5 4.3 Standard Measurement Settings 5 4.4 Standard measurement conditions 8 4.5 Working Standards and Reference 11 4.6 Standard measurement position 11 4.7 Standard operating conditions of the device under test 12 4.8 Standard Measurement Procedures 12 5 Standard measurement and evaluation 13 5.1 Reflection - Photometric Measurement 13 5.2 Contrast 14 5.3 Maximum viewing angle and viewing angle range 15 5.4 Chroma 18 5.5 Electron optical transfer function --- luminosity 19 5.6 Electron Optical Transfer Function --- Chromaticity 20 5.7 Uniformity (brightness, chromaticity) 21 5.8 Time change 25 5.9 Electrical Characteristics 28 Appendix A (informative) Standard measurement conditions 31 Reference 34

Foreword

GB/T 18910 "Liquid Crystal Display Devices" has been or is planned to release the following parts. --- Part 1. General specification (GB/T 18910.1); --- Part 1-1. Terms and symbols (GB/T 18910.11); --- Part 2. Liquid crystal display module sub-specification (GB/T 18910.2); --- Part 2-1. Blank detail specification for passive matrix monochrome liquid crystal display module (GB/T 18910.21); --- Part 2-2. Blank detail specification for color matrix liquid crystal display module (GB/T 18910.22); --- Part 3. Liquid crystal display sub-specification (GB/T 18910.3); --- Part 4. Basic rating and characteristics of liquid crystal display modules and screens (GB/T 18910.4); --- Part 4-1. Basic rating and characteristics of color matrix liquid crystal display module (GB/T 18910.41); ---Part 5. Environmental, durability and mechanical test methods (GB/T 18910.5); ---Part 6-1. Liquid crystal display device test method photoelectric parameters (GB/T 18910.61); ---Part 6-2. Liquid crystal display module test method Reflective type (GB/T 18910.62). This part is part 6-2 of GB/T 18910. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part uses the translation method equivalent to IEC 61747-6-2.2011 "Liquid Crystal Display Devices Part 6-2. Liquid Crystal Display Module Test Method of reflection type. This section has made the following editorial changes. --- According to the relevant provisions of GB/T 1.1-2009, the i value range in Table 1 and Table 2 is changed to be expressed in the form of "Note"; --- After moving Figure 23 to 5.9.3.1, it corresponds to the text of Figure 23. Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents. This part was proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part is under the jurisdiction of the National Standardization Technical Committee for Flat Panel Display Devices (SAC/TC547). This section drafted by. Tianma Microelectronics Co., Ltd., Shanghai Tianma Microelectronics Co., Ltd., China Electronic Technology Standardization Research Institute, China Institute of Metrology, Guangzhou Saixi Standard Testing Institute Co., Ltd., BOE Technology Group Co., Ltd., Southeast the University. The main drafters of this section. Zhou Haiqin, Chen Yu, Ling Zhihua, Zhao Ying, Xu Yingying, Zhou Gang, Zhang Zhigang, Cao Jinzhu. Liquid crystal display device Part 6-2. Liquid crystal display module test method Reflective

1 Scope

This part of GB/T 18910 specifies the detailed quality evaluation procedures, inspection requirements, screening procedures, and samples of reflective liquid crystal display modules. Product requirements and test and measurement procedures. This section applies to reflective liquid crystal display modules, including field display, reflective or liquid crystal display module for active or passive matrix display. It can be a monochrome, multi-color or color display, including a transflective liquid crystal display module when the backlight is not lit, and the front backlight is not lit. Reflective liquid crystal display module. This section does not apply to liquid crystal display modules including touch screens, and does not apply with front-mounted backlights. The reflective liquid crystal display module, in order to ensure the accuracy of the test, please remove the touch screen and front backlight when testing such products. Note. The terms “monochrome”, “colorless”, “chromaticity”, “color” and “full color” appear in spectroscopy, physics, color perception, physical engineering, and electrical engineering. In general, all liquid crystal displays exhibit optical display performance (such as viewing angle function, external temperature readable). The color performance of the display The force is related to the official description of the display "color goods" and is defined as follows (or see reference [19]). a) Monochrome displays do not have multiple user-recognizable chromaticities ("colors"). But it can be all "black" and "white", or not, it can be a single type Colored colors. b) The color display has two or more user-recognizable chromaticity products ("color"), and the 64-color display has 64 identifiable colors (each of the three primary colors) The number of colors in color is usually an integer multiple of 2.) Full color refers to the number of colors (not less than 260,000 colors) for each base color of at least 6 digits. This section aims to clarify and list process-dependent parameters and specify specific methods and conditions to standardize and harmonize numerical measurements.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. ISO 11664-2.2007 Colorimetric Part 2. CIE Standard Illumination (Colorimetry-Part 2. CIEstandardilu- Minants) CIE15.2 CIE Recommended Colorimetry (CIERecommendationsonColorimetry) CIE17.4 International Lighting Vocabulary (InternationalLightingVocabulary) CIE38 Characteristics of radiation and optical materials and their measurement (Radiometricandphotometriccharacteristicsofmaterialsand Theirmeasurement) CIE1931 CIEXYZ color space (CIEXYZcolourspace) CIE1976 CIELAB color space (CIELABcolourspace)

3 Lighting and lighting geometry

3.1 Introduction to the measurement method of reflective liquid crystal display Reflective liquid crystal displays use ambient lighting to display visual information, usually without a built-in illumination source. Due to the provision of lighting There is a strong correlation between equipment, metering equipment and samples to be tested, and it is very difficult to obtain valuable and reproducible measurement data. Instrument test The result of the data (for example, the contrast of a reflective liquid crystal display) is not an inherent characteristic of the device under test, but can only be specific and detailed. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 18910.62-2019_English be delivered?

Answer: Upon your order, we will start to translate GB/T 18910.62-2019_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 7 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 18910.62-2019_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 18910.62-2019_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.