GB/T 18910.202-2021Liquid crystal display devices - Part 20-2: Visual inspection - Monochrome matrix liquid crystal display modules (English PDF)

Foreword

GB/T 18910 "Liquid Crystal Display Devices" has or plans to publish the following parts.

---Part 1-1.General Specification;

---Part 1-2.Terms and symbols;

---Part 2.Sub-specification of liquid crystal display modules;

---Part 2-1.Blank detail specifications for passive matrix monochrome liquid crystal display modules;

---Part 2-2.Blank detailed specifications for color matrix liquid crystal display modules;

---Part 3.Sub-specification of LCD screens;

---Part 3-1.Detailed specifications for LCD blanks;

---Part 4.Basic ratings and characteristics of liquid crystal display modules and screens;

---Part 4-1.Basic ratings and characteristics of color matrix liquid crystal display modules;

---Part 5.Environmental, durability and mechanical test methods;

---Part 6-1.Photoelectric parameters of liquid crystal display device test methods;

---Part 6-2.Liquid crystal display module test method reflective type;

---Part 6-3.Liquid crystal display module test method active liquid crystal display module motion artifacts;

---Part 6-4.Liquid crystal display device test method liquid crystal display module with dynamic backlight;

---Part 10-1.Environmental, durability and mechanical test methods machinery;

---Part 10-2.Environment, durability and mechanical test methods environment and durability;

---Part 20-1.Visual inspection of monochrome LCD screen;

---Part 20-2.Visual inspection of monochromatic matrix liquid crystal display module;

---Part 20-3.Visual inspection of active matrix color liquid crystal display modules.

This part is part 20-2 of GB/T 18910.

This section was drafted in accordance with the rules given in GB/T 1.1-2009.

The translation method used in this part is equivalent to IEC 61747-20-2.2015 "Liquid Crystal Display Device Part 20-2.Visual Inspection of Monochromatic Matrix

Liquid crystal display module (not including active matrix liquid crystal display module)".

This section has made the following editorial changes.

---The standard name was changed to "Liquid Crystal Display Device Part 20-2.Visual Inspection of Monochrome Matrix Liquid Crystal Display Module".

1 Scope

This part of GB/T 18910 provides the details of the quality certification procedure and specifies the visual inspection method for the monochrome matrix liquid crystal display module. give

It is possible to visually inspect the non-display area and display area of the monochrome matrix liquid crystal display module through the human eye and, if necessary, through an optical microscope.

Detailed regulations and general rules. In addition, this section includes defect definitions and methods for visual inspection of defects.

Note. The limitation on the type, quantity and size of defects is stipulated in the quality contract (customer acceptance specification and incoming material inspection specification).

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article

Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB/T 18910.102-2021 Liquid crystal display device Part 10-2.Environmental, durability and mechanical test methods

Durability (IEC 61747-10-2.2014, IDT)

IEC 61747-1-2.2014 Liquid crystal display devices Part 1-2.General terms and text symbols (Liquidcrystaldisplay

devices-Part 1-2.Generic-Terminologyandlettersymbols)

3 Terms, definitions and abbreviations

4 Visual inspection methods and standards