PARAMETER(1) |
MIN |
NOM |
MAX |
UNIT |
Dark Blemishes(2) |
|
|
4 |
|
Light Blemishes(3) |
|
|
4 |
|
Border Artifacts(4) |
|
|
Allowed |
|
Minor Blemishes(4) |
|
|
Allowed |
|
Bright Pixels(3) |
|
|
0 |
|
Dark Pixels(6)(5) |
|
|
4 |
|
Pixel Clusters (Dark)(5) |
|
|
0 |
|
Dark Pixels (Adjacent) (5)(6) |
|
|
0 |
|
Unstable Pixels(4) |
|
|
0 |
|
Optical Performance |
See Optical Performance |
|
Ambient Lighting Conditions |
|
See (7) |
|
|
(1) Blemish counts do not include reflections or shadows of the same artifact. Gray 10 linear gamma graphic is the darkest screen that can be used for IQ evaluation. Any artifact that is not specifically addressed in this table is acceptable unless mutually agreed to between DLP® Products and the customer. Viewing distance must be > 48 inches. Screen size should be similar to application image size. All values referenced are in linear gamma. Non-linear gamma curves may be running by default, and it should be ensured with a TI applications engineer that the equivalent linear gamma value as specified is used to judge artifacts.
(2) Determined on Blue 60 linear gamma screen. Blemish cannot be darker than background.
(3) Determined on Gray 10 linear gamma screen. Blemish cannot be lighter than background.
(4) A Minor light blemish is any blemish that can be seen on a black screen but not a Gray 10 linear gamma screen. A Minor dark blemish is any blemish that can be seen on a white screen but not a Blue 60 linear gamma screen. Border artifacts, unstable pixels, and Active area shading are allowed unless visible on a screen brighter than Gray 10 linear gamma.
(5) Determined on a White screen.
(6) Dark pixels must be at least fifty (50) mirrors apart.
(7) The parameters stated in
DMD Image Quality Specification assume that the viewed images are set with a nominally adjusted brightness for ambient lighting condition. For example, if the ambient lighting conditions are very dark, such as night time conditions, then the image brightness level will be matched to nominal expected value as used in the end application. Similarly, if the ambient lighting conditions are very bright, such as day time viewing conditions, then the image brightness may be adjusted to the nominal brightness level as would be expected in the end application.