Double click the Header and type in the title of the document (bolded) to the right of the word “Title:”. Similarly, type in the Number of the document and Revision (both non-bolded) and close the Header. Delete the number to the right of “Supercedes:” in the footer. Enter a Superceded document number if the document being created is superceding a previous released document. The only item in the footer that the template user may utilize is the “Supercedes:” item.
AFTER you are done composing the document, select “Insert”, “Index and Tables”, “Table of Contents”, then select “Formal” format & show level “3” or level “2” and OK to create the table of contents. Paragraph titles and subtitles MUST BE formatted with the appropriate “Heading” formats to automatically create the Table of Contents.
All documents MUST contain the Revision History table labeled as paragraph 1. An entry shall be made for the initial & all subsequent releases to call out the rev, PCO number, description, approvals and the approval dates. THE APPROVAL/APPROVALS LISTED FOR EACH REVISION IS THE OFFICIAL APPROVAL/APPROVALS FOR THAT REVISION. Normally, approvals for revisions would require the same names that approved the document’s initial release. Please ensure that multiple approvals are contained in the row designated for that revision. Limit the Revision Description to keep it as clear and concise as possible. Ensure the table only occupies 1 page unless there are more revisions than can fit on one page.
1. Revision History
1. 修订历史
Rev. 转速。 | PCO # PCO# | Revision Description 修订描述 | Approved 批准 | Date 日期 |
A00 | 36232 | Initial Release 初始版本 | Pavel Olchovik & Spec Governance Pavel Olchovik & Spec Governance(帕维尔·奥尔乔维克与规范治理) | 07/20/2017 2017/7/20 |
A01 | 37791 | Added details to added test setup 为添加的测试设置添加了详细信息 Limit reference pictures 限制参考图片 | Pavel Olchovik 帕维尔·奥尔乔维克 | 12/14/2017 2017 年 12 月 14 日 |
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2. Introduction
2. 引言
Transitioning market demands on front of screen performance requires Dell to uses a graded light leakage performance specification to support multiple segments. Three grades of light leakage are specified.
不断变化的市场对屏幕前性能的需求要求 Dell 使用分级漏光性能规格来支持多个段。规定了三个等级的漏光 。
Grade A is ultra-premium with little visible leakage in lower light
A 级是超优质产品,在较弱的光线下几乎没有可见的泄漏
Grade B is an improved grade typically used in gaming. (Equivalent to a 10% ND)
B 级是游戏中常用的改进等级。(等效 至 10% ND)
Grade C is equivalent to existing mainstream performance expectations (Equivalent to an 8%ND)
C 级相当于现有的主流性能预期(相当于 n8%ND)
Limit reference pictures will supersede limit samples and Neutral Density filters for comparative testing.
极限参考图片将取代极限样品和中性 D强度滤光片进行比较测试。
The specific light leakage tested for in this specification is for light bleed. Light bleed is unwanted light escaping through the panel caused by mechanical bending, twisting or interference changing the LC cell gap.
本规范中测试的特定漏光是针对漏光的。光渗出是由于机械弯曲、扭曲或干扰改变 LC 池间隙而引起的不需要的光从面板逸出。
2.1 Purpose
2.1 目的
Limit samples and ND filter are poorly defined and are difficult to apply consistently allowing failed units into the field. This document is the standard operational procedure of utilizing a comparative method compliance ruling of light leakage performance using Limit Reference pictures.
极限样本和 ND 滤镜定义不明确,难以一致应用,允许失败的单元进入现场。 该文件是使用极限参考图片对 l高泄漏性能的比较方法合规性裁定的标准操作程序。
2.2 Scope
2.2 范围
This procedure measures the compliance of display panels to specified light leakage requirement in ENG0002099. This includes light bleeding caused by cell gap change due to mounting warpage or twisting. Limit Reference Pictures do not restrict other Dell approved production detection and discovery methods as long as all failed units are 100% screened for compliance testing according to ENG0002099.
该程序测量显示面板是否符合 ENG0002099 中规定的漏光要求。 这包括由于安装翘曲或扭曲引起的细胞间隙变化引起的光渗出。 限制参考图片不会限制其他 Dell 批准的生产检测和发现方法,只要根据 ENG0002099 对所有故障单元进行 100% 的合规性测试筛选即可。
2.2 References
2.2 参考资料
SID: IDMS V1.03 Information Display Measurements Standard (http://www.icdm-sid.org/)
SID:IDMS V1.03 信息显示测量标准 (http://www.icdm-sid.org/)
Vendor may use approved factory alternatives.
供应商可以使用经批准的工厂替代品。
Dell: ENG0002099 LCD Cosmetic Spec
Dell:ENG0002099 LCD 外观规格
Dell: ENG0018696 System FOS Cosmetic Specification A00
Dell:ENG0018696 系统 FOS 外观规格 A00
Dell: ENG0002640 Panel Characterization Process & Test Procedure
戴尔:ENG0002640面板特性过程和测试程序
Dell: ENG0018838 SPEC, NOMENCLATURE, CSMTC, LCD, NBK
戴尔:ENG0018838SPEC、NOMENCLATURE、CSMTC、LCD、NBK
2.3 Definitions
2.3 定义
2.3.1 Panel Light Leakage: for this test, light leakage is defined as the additional light escaping through the cell, created by undesired variations in the cell light valve off performance. The typical reason is cell gap variation due to external mechanical forces that twist and bend the mounted panel. The ability for a user to see light leakage is related to the ambient light conditions. In a zero-lux environment light leakage is always present to some degree. As ambient light increases, light leakage becomes increasingly harder to see. Eventually light leakage is total masked by the ambient light reflections.
2.3.1 面板漏光:在本测试中,漏光定义为通过电池逸出的额外光线,这是由电池光阀关闭性能的意外变化造成的。典型的原因是由于扭曲和弯曲已安装面板的外部机械力而导致的电池间隙变化。 用户看到漏光的能力与环境光线条件有关。在零照度环境中,漏光总是在一定程度上存在。随着环境光的增加,漏光变得越来越难看到。最终,漏光被环境光反射完全掩盖。
2.3.2 Mechanical interferences: is defined as mechanical parts (such as foam pads, cables, A-Cover, B-cover, etc.) interfering with the LCD panel during the manufacture and final mounting process in a product. Coplanarity and rigidity of the supporting display structure can bend or twist a display causing light leakage.
2.3.2 机械干扰:定义为机械部件(如泡沫垫、电缆、A-Cover、B-Cover 等)。) 在产品的制造和最终安装过程中干扰 LCD 面板。 支撑显示器结构的共面性和刚度 可能会使显示器弯曲或扭曲,从而导致漏光。
This sub-paragraph shall explain the range of application of the material contained in the document.
2.3.3 Brightness: is an attribute of visual perception in which a source appears to be radiating or reflecting light.[1] In other words, brightness is the perception elicited by the luminance of a visual target. It is not necessarily proportional to luminance. This is a subjective attribute/property of an object being observed and one of the color appearance parameters of color appearance models.
2.3.3 亮度:是视觉感知的一个属性,其中光源似乎在辐射或反射光。[1] 换句话说,亮度是由视觉目标的亮度引起的感知。它不一定与亮度成正比。这是被观察对象的主观属性/属性,也是颜色外观模型的颜色外观参数之一。This sub-paragraph shall list all other documents referenced in the content of this document or documents that explain related material. If there are no references, type “None” as the text for this paragraph.
This paragraph begins the content of the document and MUST always be numbered as paragraph 3. This paragraph heading shall be used for major divisions of the content and subsequent headings of the same level shall be numbered consecutively until the document is complete. The paragraph numbering normally would not exceed 2 digits before the period, but could grow to 3 should the need arise.
2.3.4 Luminance: is a photometric measure of the luminous intensity per unit area of light travelling in a given direction. It describes the amount of light that passes through, is emitted or reflected from a particular area, and falls within a given solid angle. The unit for luminance is candela per square meter (cd/m2 or Nits).
2.3.4 亮度:是沿给定方向传播的每单位面积光的光强度的光度。它描述穿过的光量,从特定区域发射或反射的光量,并落在给定的立体角内。亮度的单位是坎德拉每平方米(cd/m2 或 Nits)。
2.3.5 Visual perception is the ability to interpret the surrounding environment using light in the visible spectrum reflected by the objects in the environment.
2.3.5 视觉感知是利用环境中物体反射的可见光谱中的光来解释周围环境的能力。
2.3.6 Minimum Luminance (ML) sets the base value when visually observing the panel for light leakage. The ML is defined at the center of the display when viewed from perpendicular. ML varies on the panels with location and angle of viewing. Lower contrast display panels typically have higher ML which may exceed 0.6 Nits.
2.3.6 最小亮度 (ML) 设置目视观察面板漏光时的基准值 。从垂直方向查看时,ML 定义在显示屏的中心。ML 在面板上随位置和视角而变化。L低对比度显示面板通常具有更高的 ML,可能 超过 0。6 尼特。
Figure 2.3.6.1 Expected Minimum Luminance Values
图 2.3.6.1 预期最小亮度值
2.3.7 Neutral Density filters reduce luminance of a source by a fixed percentage and pass all visible light equally without regards to color and viewing angle. An 8% ND filter passes 8% of the light. A 10% ND filter passes 10% of the light. ND filters work by reducing the luminance of the light leakage being tested for compliance to a point where it is almost invisible. The point of almost invisible is subjective but easier to differentiate when reduced to the barely visible level.
2.3.7 中性密度滤光片按固定百分比降低光源的亮度,并均匀地通过所有可见光,而不考虑颜色和视角。8% ND 滤镜可通过 8% 的光线。10% ND 滤镜可透射 10% 的光线。ND 滤镜的工作原理是将被测试的漏光亮度降低到几乎看不见的程度。几乎看不见的一点是主观的,但更容易区分 when 降低到 几乎看不见的水平。