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OpenCDD
CNRv1rev 52011-08-31

contrast ratio

0112/2///61360_4#AAE848

minimum guaranteed value of the maximum obtainable ratio between the brightness of the light areas to the brightness of the dark areas of a liquid crystal display at specified values of the operating voltage, ambient temperature and viewing angle

Used by classes
1
property
Code
AAE848
Data type
LEVEL(MIN) OF REAL_MEASURE_TYPE
Unit
UAA915 UAA915
Used by classes (1)

Version history5#

  1. Current rev 05
    17 Aug 2015 · 15:40 UTC by BATCH 00000917
    View on cdd.iec.ch ↗
  2. superseded rev 04
    23 Jul 2015 · 11:08 UTC by BATCH 00000907
    ↓ Version JSON
    View on cdd.iec.ch ↗
  3. superseded rev 03
    22 Jul 2015 · 14:21 UTC by BATCH 00000904
    ↓ Version JSON
    View on cdd.iec.ch ↗
  4. superseded rev 02
    30 May 2012 · 15:03 UTC by BATCH 00000788
    ↓ Version JSON
    View on cdd.iec.ch ↗
  5. superseded rev 01
    30 May 2012 · 14:53 UTC by BATCH 00000787
    ↓ Version JSON
    View on cdd.iec.ch ↗

IEC CDD records every published revision of each entity — version number, status, timestamp, and the change request that introduced it. OpenCDD captures the full chain of custody from cdd.iec.ch; the entry marked Current is the one rendered on this page.

Metadata#

Remark
The ratio is always a value greater than one. This means that, for a negative image mode, it is the ratio of the brightness of an addressed display zone to the brightness of a non-addressed zone and, for a positive image mode, it is the ratio of the brightness of the non-addressed zone to that of the addressed zone.
Version
1
Revision
5
Status
Standard
Publisher
IEC
Published in
IEC 61360-4
Responsible committee
SC3D
Dates
  • Original: 1996-08-01
  • Current version: 2011-08-31
  • Current revision: 2015-08-17