Since 1975 RPG Electronics has manufactured the highest quality and most reliable Liquid Crystal Testers. LCD testers from RPG Electronics have since been used around the world from the United States to China and beyond.  Our commitment to providing the best possible testing equipment was once again proven with the recent release of our Model 4200.

The Model 4200 LCD Tester tests both direct-drive and multiplexed displays. The Model 4200 drives up to 66 pins and detects short circuits between any two pins. The 4200 also displays patterns at multiple programmable voltages to allow visual display tests. Additionally, the 4200 LCD Tester has a backwards compatible mode allowing use of existing Model 3200 test fixtures. In compatible mode, up to 64 pins can be set to drive segments and up to 33 pins can be set to drive backplanes. When using the new variable duty cycle mode, up to 33 pins can drive segments (or columns) and up to 33 pins can drive backplanes (or rows). All tests use AC waveforms to prevent display damage. Current and Resistance tests are performed with square waves. Visual tests are performed with Type A or Type B multiplexed waveforms of programmable duty cycle and bias levels. The RS-232 remote control and PLC ports allow complete automation and result logging.