UM10720 Datasheet, PDF (6/16 Pages) NXP Semiconductors – User manual for the TFT touch demo board OM11058

NXP Semiconductors
UM10720
User manual for the TFT touch demo board OM11058
2.1 Display layers
The basic building elements of - for example - a passive LCD are shown in Figure 4.
Polarizer
Segments:
transparent
opaque
Display glass - Top
Segments – Top ITO
Liquid crystal molecules
Common – Bottom ITO
Polarizer
incident light
UM10720_03
Fig 4. LCD layers
The touch sensor pads can be placed on the same layer as the display ITO as an
interleaved pattern (in-cell) or on top of the display glass, sandwiched under the polarizer
(on-cell), see Figure 5.
UM10720
User manual
All information provided in this document is subject to legal disclaimers.
Rev. 1 — 25 June 2013
© NXP B.V. 2013. All rights reserved.
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