奇
菱
光電股份有限公司
Chi Lin Optronics Corp.
Doc. No
CS-72601
Version A3
Title
CHT-726 Level 1 Service Manual
Page
20 / 75
j. White Peaking mode (SLR, spoke light recapture) must be turned off.
k. Refer to Table 1 for acceptance criteria, in the specified order:
2. Test Sequence:
Tests shall be run in the sequence listed in Table 1.
TEST ORDER
CHECK ITEMS
SCREEN
ACCEPTANCE CRITERIA
1
Major Dark Blemish
Blue 90
Zero Dark blemishes
2
Dark Pixel
Blue 90
Zoned Screen
(See below Figure 1)
Zero Dark pixels allowed in Zone A
≤
2 dark pixels
allowed in Zone B
Zero Adjacent dark pixels
3
Border Defects
Gray 30
Zero Border Defects
Zero Non-Active Area Artifacts
4
Major Light Blemish
Gray 10
Zero Light blemishes
5
Light Pixel
Gray 10
Zero Light pixel
6
Minor Blemishes
White or Black
Total of Dark and Light Blemishes
≤
6
(see note 4 for size limitation)
7
Unstable Pixel
Red Ramp Screen
Zero Unstable pixels
Table 1. Image Quality Specification Test Criteria
※
Notes:
1. This specification applies to the active pixel area (addressed pixels) of the DMD only. All other
defects outside of this area are acceptable. Also in this manner, customer projection optics must
control light effectively. Light reflecting from anywhere outside of the active pixel area is not a
basis for DMD acceptance.
2. All cosmetic DMD defects (scratches on the external DMD surface, for example) will be judged
using the above test conditions on the projected image only.
3. Projected blemish numbers include the shadow of the artifact in addition to the artifact itself.
(Count = 2).
4. The projected image shall not contain any blemish more than 4 inches long, measured on a 42 inch
(107cm) diagonal screen.
5. Any defect not mentioned in the above criteria shall be acceptable, unless customer and Texas
Instruments mutually agree that it is a problem for the marketplace.
