Pen Touch Overview. (Pdp Pen Touch Concept); Plasma Display - LG 42PA4500 Service Manual

7-5. Pen touch overview. (PDP Pen Touch Concept)

Principle 1. The Pen using PDP Cell's light energy
Step 1. The pen detect the PDP Cell's light
Step 2. The pen convert detected light to voltage
Step 3. The pen calculate X,Y position
Step 4. The pen transfer the X,Y data through RF
The photo sensor in the
Plasma
Display
Copyright © 2012 LG Electronics Inc. All rights reserved.
Only for training and service purposes
RF Wireless communication
Pen
pen detect the light
The HDMI or RGB signal is PC's output that configuration set by clone mode.
Principle 2. The position data processed Pentouch TV
Application looks like PC mouse.
Step 1. USB Dongle receive the position data.
Step 2. USB Dongle Driver parsing the positon
Step 3. Pentouch TV application drawing and click function.
Step 4. The result was displayed PDP TV through HDMI or
RGB cable.
(2.4GHz)
USB
Dongle
It can use Multi-Touch function by support 2 pens.
Pentouch TV Application
- It was developed by LG.
- It can be using internet for web surfing , Flash Game etc.
LGE Internal Use Only