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Active Matrix LCD with Integrated Optical Touch Screen

From Planar Systems, Inc.
 

 

A 2.4 in. by 2.4 in. TFT LCD is presented with an embedded 60x60 array of a-Si photo sensors, for use as a high performance touch-enabled LCD with low cost. In the shadow mode the optical touch screen operates with finger or stylus input under ambient lighting conditions from 50 lux to 50 klux.

TFT LCDs with touch screens have become popular in displays for industrial and retail applications, as well as in PDAs and emerging tablet PC products. The majority of touch-enabled AMLCDs are based on resistive, capacitive or inductive touch technology. All these solutions require externally added components or screens, which add cost and reduce optical performance. For example, the most commonly used and currently lowest cost approach is based on resistive touch panels, which reduce display transmittance by about 20 %, increase reflectance and have a limited lifetime.


Products & Services
Industrial computer monitors are ruggedized for use in control room, factory floor, or process applications. Search by Specification | Learn more about Industrial Computer Monitors
Touch screen displays are user-friendly input devices. The user touches the screen and the input is communicated directly to the computer. Search by Specification | Learn more about Touch Screen Displays
Touch screen sensors are composed of a transparent touch surface surrounded by a sensor array that provides positional information to a processor. Search by Specification | Learn more about Touch Screen Sensors
Flat panel displays (FPDs) are thin, flat, electronic devices used to display data. They are commonly used in notebook computers. Most styles include the housing and ports necessary to connect them to a computer. Search by Specification | Learn more about Flat Panel Displays

Product Announcements
S-Tek, Inc. - Touch Screen
A touch panel or touch screen is a touch-sensitive transparent screen mounted in front of an LCD. It provides a way for a person to interact with an electronic system. Typically the system will... (read more)
VarTech Systems - Touchscreens for CRT and LCD Displays
When it comes to touchscreen technology, the five most prevalent types are Capacitive, Infrared, Resistive, SAW and Guided Wave with Resistive and Capacitive being the most widely used types for... (read more)
Planar Systems, Inc. - PT Touch Screens Now Feature SAW Technology!
The PT 15, 17 and 19" SAW touchscreen LCD monitors are perfect for healthcare, retail, point-of-sale and hospitality applications. The all-glass SAW touchscreen is activated by a finger, gloved hand... (read more)
GM Nameplate - Custom Resistive Touch Screens
Present complex functions in a straightforward and comprehensible user interface, that's easy to operate for even inexperienced users, with a GM Nameplate custom manufactured touch screen. (read more)
TLC Electronics - New 7" TFT Color Display with Touch Panel
TLC Electronics, Inc is proud to offer FEMA's new TFT LCDs with integrated touch screens. (read more)
Densitron Corporation of America - Densitron America's 3.5
Press Release: April 6, 2009 - Densitron Corporation introduces their first in a series of ITO Projective Capacitive Touch (PCT) Bright TFT display modules for OEM use into North America! Designed... (read more)
Densitron Corporation of America - DensiTouch™ Touchscreen Panels
DensiTouch™ touchscreen family of panels offer speed, clarity and durability. Densitron's touch screens can exceed 50-million operations at a single point, transmissivity greater than 90%... (read more)
Higgstec Inc. - Taiwan -Lowcost Touch panel
If You're Dissatisfied with the Touch Giants, You Should Consider Higgstec Inc. Superior Quality, Better Products and Service! Why Pay More... (read more)
PanJit Touch Screen Solutions Division - Touch Screens Solutions
PanJit Touch Screens Division is one of the leading Resistive and Capacitive Touch Screens Solution providers in the World. Servicing various market segments and applications, including Military... (read more)
Densitron Corporation of America - Densitron's NEW 5.7" Surface Acoustic Wave TFT
Press Release: Feb 23, 2009 - Densitron Corporation introduces the world's first 5.7" Surface Acoustic Wave High Bright TFT display for OEM use into North America! Designed specifically to offer a... (read more)

Topics of Interest
Overview In this chapter, a number of specific AMLCD configurations are described that are different from the standard, stand-alone transmissive color TFT LCD. Ultra-high-resolution monochrome... (Read More)
Wei-Chung Cheng Massoud Pedram, University of Southern California OVERVIEW Abstract This chapter presents transmittance scaling; a technique aimed at conserving power in a transmissive... (Read More)
Flat panel displays, exposed to ambient sunlight conditions such as those in ATMs and point-of-sale terminals, that are installed outdoors or exposed to direct sunlight are problematic. High ambient... (Read More)
The image quality and small form factor of TFT LCDs has allowed their application in numerous portable devices as well as in desktop monitors and LCD television. This chapter first describes the basic... (Read More)
A touch-sensitive switch is a switch that is implemented as a trace on a printed circuit board. The architecture of the trace creates a capacitive element on the board. Touching this trace with your... (Read More)