Services and Solutions | Testing
AGParts can offer a solution to your LCD testing needs. Our service department can audit your LCD's in any quantity to meet your requirements. The combination of our professional auditing experience and our effective time management enables us to offer a successful program geared to meet your companies specifications, and time constraints.
Pixel Testing
LCD's sometimes have pixels that are either permanently shut off (dead) or permanently turned on (stuck in one color). This test consists of a series of colored screens that make bad pixels easy to spot. Most of the LCD's that we test have a few bad pixels, but we check to see that each LCD has no more than the number deemed acceptable by its manufacturer.
Pixel Tracking and Phase-Lock Test
This screen helps reduce noise fluctuations and sharpens image quality by optimizing an LCD's pixel tracking and timing lock, which is sometimes referred to as phase, timing, or horizontal time.
Page of Text Testing
The screens above illustrate a display's ability to render text under a variety of conditions. We cycle through various text and background colors, view split screens with inverse text and background colors, and adjust the type and the size of a font.
Screen Uniformity
Perfectly uniform backlighting across an LCD's entire display surface is difficult to achieve. It is not uncommon for an LCD to have bright or dim patches or subtler variations in color intensity, which give the appearance of shading across the screen, or variable color intensity on the display. We use this screen to check for irregularities caused by backlighting issues or other screen-uniformity factors, such as variations or reflections inside the glass panel.
Brightness of CCFL
Backlights can often dim overall or have "dim spots" in certain areas of the LCD screen. Backlights can begin to dim in the corners due to long burn hours for older bulbs. Overall brightness and uniformity are tested to meet your specifications.
Polarizer Evaluation
LCD's are evaluated for scratches, surface blemishes, and polarizer alignment to ensure that the LCD meets your standards. Scratched LCD's can have their polarizer return to new status with the application of a new polarizer at our facility.
|
