Toshiba TDP-D1 Service Manual page 107

2.9 Border Artifacts
All variations of these artifacts are acceptable under this image quality
specification.Border artifacts are a general category of image artifacts that may show up on
screen inthe area outside of the active array. Border artifacts include: Exposed Bond
Wires,Exposed Metal 2, and Reflective Edge.
2.9.1 Bond Wires
Bond Wires attach the die to the superstructure. If visible, they will appear as short
light parallel lines outside of the Sea of Mirrors (SOM).
2.9.2 Exposed Metal 2
Exposed Metal 2 is due to a shift in positioning of either the die or the window
aperture, which may allow light to be reflected off of the layer of metal 2 that is
below the super structure (mirrors). This defect is located at the outer edge of the
SOM.
2.9.3 Reflective Edge
Reflective Edge is light that may reflect from the edge of the DMD's window
aperture onto the projection screen. It will appear as a thin diffuse line outside of the
SOM.
2.10 Two Zone Blue 60 Screen
The Two Zone Blue 60 screen is used to test for major dark blemishes. Refer to Figure
1for configuration. All areas of the screen are colored a Microsoft Paintbrush blue
60(green and red set at 0, blue set at 60).
NOTE: If linear degamma is not used then the Microsoft Paintbrush values must
beadjusted to match the degamma table being used in order to generate an equivalent
bluelevel on the test screen image.
2.11 Two Zone Gray 10 Screen
The Two Zone Gray 10 screen is used to test for major light blemishes. Refer to Figure1
for configuration. All areas of the screen are colored a Microsoft Paintbrush gray 10(green,
red, and blue set at 10).
NOTE: If linear degamma is not used then the Microsoft Paintbrush values must be
adjusted to match the degamma table being used in order to generate an equivalent gray
level on the test screen image.
The Kit shall provide digital imaging functionality, in accordance with the Projector system design
allocations, such that it provides the Projector with the functional capability to project images that
meet the image quality requirements specified in Table I and it shall not possess artifacts or other
characteristics that cause projected images to fail to meet those same requirements.
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