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Engineering Change Notification

Public | Finalized Published: 30 January 2026 - Reference: 04_2026_ECN

TAGS: [Electrical]

Specification revision of may Backlight for JH 21T27

Hatteland Technology AS hereby informs about changes for the following model(s):
JH 21T27 MMD-yRy-yyyyyy

Notice: Customized models are ALSO affected by this Engineering Change Notification.

JH 21T27 MMD-yRy-yyyyyy

Changes:

Specification revision, Optimization of Mayimum Backlight Luminance. from 500 cd/m2 to 350 cd/m²

Additional information:

This adjustment is implemented to achieve tighter control over peak luminance levels and to mitigate visual artifacts inherent to IPS technology.
By optimizing the luminance, we ensure a more uniform and diffused light distribution across the panel.

The revised specification continues to provide a performance increase over previous generations, ensuring superior brightness while prioritizing image stability.
JH 20T14: 260 cd/m² vs JH 21T27: 350 cd/m²

No impact on form, fit, function.

Contact:

For further enquiries regarding this Engineering Change Notification, please contact Support at Hatteland Technology AS.

Matching products online:

JH 21T27 MMD-yRy-yyyyyy

Implemented by:

________________________________

Joakim Emanuelsson
Vice President Product Management
Hatteland Technology AS

Read and Understood by:

________________________________

(Your name)
(Your company)

Last revised: 30 January 2026