GLRT
Gray Level Response Time Measurement Kit
The Gray-Level Response Time measurement kit enables rapid measurement of gray-level response time of LCD displays. The package consists of Westar’s gray-level response time measurement software combined with the TRD-200 Temporal Response Detector, and T-Drive™ II LCD Tester.
The GLRT system is used by major display manufacturers and integrators throughout the world. This system automates gray-to-gray response time measurements of LCD displays, saving hundreds of hours in the lab.
Features
Includes instrument, LCD tester, and software
Includes TRD-200, T-Drive II, and GLRT software
Measure gray level response time and flicker
Standalone kit for measuring gray level response time, flicker frequency, and flicker intensity
No oscilloscope required
Internal 500KHz digitizer with USB interface. No need for oscilloscope or data acquisition cards
Applications
Product testing for quality assurance and quality control
Response time and flicker measurements of cell phone displays, tablets, flat panel monitors, and LCD TVs for QA/QC.
Product R&D and engineering
LCD and OLED display response time measurements for R&D and engineering.
See it in Action
The GLRT software is easy to use and provides automated sweeps through a user specified number of gray-levels. The results are presented as a 3-D graph and as a table of numeric response time values. Response times as short as 100us can be measured with the standard instrument.
Specifications
| Parameter | Specification |
|---|---|
| TRD-200 | |
| Type | Hamamatsu H10722-110 |
| Spectral Response | 230 nm to 700 nm |
| Frequency Bandwidth | DC to 20 kHz |
| Sample Rate | 500 KHz |
| A/D Resolution | 16-Bit |
| Buffer | 4 Mega-sample |
| Trigger Types | Adjustable Trigger Level Positive / Negative Edge External Trigger Input (TTL) |
| Gain Adjustments | Microprocessor controlled with peak detection (works with pulsed signals) |
| More Info | View Full TRD-200 Specifications |
| T-Drive II | |
| Outputs | LVDS, TMDS / Analog, TTL (optional) |
| Blink Pattern | User specified gray-levels |
| Blink Rate | User specified |
| Blink Sync Output | TTL |
| Remote Interface | USB |
| More Info | View Full T-Drive II Specifications |
| Parameter | Specification |
|---|---|
| GLRT Software | |
| Reports | 3-D gray level graph (surface or bar graph) |
| Data Export | Comma delimited text file |
| Gray Level Controls | User selectable gray-level range, and number of measurements within range |
| Response Time Thresholds | User selectable (typical 10% – 90%) |
| PC Requirements (not included) | |
| Operating System | Windows XP, Windows 7 |
| Processor | greater than 1 GHz |
| Memory | greater than 256Kb |
| HDD | over 500 Mb free space |
| Ports | 2 USB 2.0 |
| Utilities | |
| System Power | 100-240 VAC, 50 or 60 Hz |
Ordering Information
The GLRT kit includes:
- Gray Level Response Time Software
- TRD-200 Temporal Response Detector
- T-Drive™ II LCD Tester
Three Lens Options for the TRD-200
The TRD-200 has a C-mount that can work with compatible optics of your choice or you can order a lens from us. We have three lenses available depending on your application.
FO: Fiber Optic
The “Fiber Optic” option uses a SMA-905 standard fiber optic coupler to receive the light signal from a fiber optically coupled (remote) source.
STD: Standard Objective Lens
The Standard objective lens and 1/16″ pinhole aperture with a working distance of 30 to 60 inches. Use the –STD input optics for most LCD types.
SAO: Slit Aperture Optics
The “Slit Aperture Optics” option uses a horizontal line aperture (slit mask emulation) instead of a circular spot. This allows a single display line to be measured and thus avoids Tr and Tf skew due to oversized spots. This adjustable-focus option is for LCDs with Tr and Tf specs less than 5 ms.