IEC TS 62715-5-4:2019 free download

10-15-2020 comment

IEC TS 62715-5-4:2019 free download.Flexible display devices – Part 5-4: Measuring method of blur in flexible transparent displays.The size of this pdf file is 11.7M.
IEC TS 62715-5-4:2019 (E) specifies the measuring conditions and measuring methods for determining the blur of objects when viewed through a flexible transparent display. This document mainly applies to flexible transparent display modules that have a constant radius curvature about a single axis. The display is measured in a static mechanical state.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
intent constitutes requirements of this document. For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 62715-1-1, Flexible display devices-Part 1-1 Terminology and letter symbols;
IEC 62715-5-1, Flexible display devices -Part 5-1: Measuring methods of optical performance;
4.3 Standard setup conditions
4.3.1 Display mounting
The fixture used to mount a curved display plays a critical role in obtaining accurate and reproducible results. [1] The display mount should be designed to accommodate the specific enable characteristics of the flexible transparent display in its intended use configuration he mount should be capable of maintaining the intended shape of the display and locate it in he required measurement position and viewing direction. The measuring methods specified.
this document only apply for displays that have a constant radius of curvature about a single axIs
The origin of the coordinate system is positioned at the imaging surface of the DUT and centered on the screen. Unless otherwise specified, the optical axis of the LMD shall be ligned to within 1 of the DUTs surface normal at its centre. For spot-type LMDs, the retro- eflection of the LMD can be used to obtain this alignment. Otherwise, an alignment laser can be used to define the optical axis. The methods also assume that the rotation stages an mechanical mounting have sufficient accuracy and stability to maintain a tolerance of less.

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