Frequently Asked Questions about E-Paper Displays (FAQ-4 Frontlight & Touch Panel Questions)
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- Time of issue:2026-03-04 17:39
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(Summary description)
Frequently Asked Questions about E-Paper Displays (FAQ-4 Frontlight & Touch Panel Questions)
(Summary description)
- Categories:FAQ
- Author:
- Origin:
- Time of issue:2026-03-04 17:39
- Views:
Information
(IV) E-Paper · Cover Lens/Touch/Front Light FAQ
Covering practical FAQs such as lamination process, front light debugging, touch screen anomalies, etc. Enter keywords to quickly search for answers.
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1 Why is the AA area of the e-paper smaller after adding a glass cover lens?
To prevent the screen's wiring and MARK points from being visible in the viewing window after lamination, which would affect the user experience.
2 When is OCA lamination needed?
OCA lamination is needed for full lamination of e-paper front lights or touch screens. (What is OCA?)
3 Customer cannot turn on the front light during use?
1) Is the FPC inserted backwards?
2) Is the supply voltage normal?
2) Is the supply voltage normal?
4 How to adjust the brightness of the front light?
1) Add a variable resistor to the circuit
2) Adjust the current using a current source
2) Adjust the current using a current source
5 Touch screen has no coordinate output?
1) Is the FPC inserted backwards?
2) Does the data line support data transmission?
2) Does the data line support data transmission?
6 Touch sensitivity is insufficient during use?
1) Program optimization
2) Firmware upgrade
2) Firmware upgrade
⚡ Enter any keyword (e.g., "cover lens", "sensitivity", "OCA") to filter in real-time
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