Lifetime; Module; Led; Test Conditions - Toshiba LTA057A341F Specification

7. Lifetime

7.1 Module (except LED)
MTTF (Mean Time To Failure): 50,000 h
(This value is not assurance time but inference value by following conditions.)
Conditions : Ambient temperature : 25±5°C (No wind)

7.2 LED

7.2.1 Test Conditions

Ambient temperature
LED current
Lighting condition

7.2.2 Specifications

MTBF : 20,000 h (I
Definitions of failure for judgment shall be as follows.
1) LCD luminance becomes half of the minimum value specified in 5.2.
2) LED doesn't light normally.
Note1) In case of LCD long period operation, discoloration of light guide or optical sheet.
As the result, there is possibility to have out of specification for the optical characteristics
as "5.2". But this is not irregular phenomena.
Moreover, LED also has the characteristic of color shift by long period operation.
Toshiba Matsushita Display Technology Co.,Ltd
Specification No. TENTATIVE
Ambient humidity : 65%(RH)
: 25±5°C (No wind)
: 15mA
: continuous lighting
=15mA)
LED
Date: 2008 – 11- 07
Date: - -
←# Special
New No. LTA057A341F-14
Old
No.
←& Addition
Sheet
31
← Change