LCD Screen Failure Case Share
- The below cases are just some examples of common LCD screen failures, not all of them.
- The below cases photos are edited and processed on the basis of the original data photos.
Individual failure phenomena have been highlighted for easy observation. - The remarks of “Can repair?” only represent personal opinions. Although many factors and site operability are considered as much as possible in the definition, due to the influence of factors such as tools, accessories, and actual failure characteristics, A failure that some remarks can fix may not be fixed in the implementation, and vice versa. It is suggested that the reliable repair information should be judged by the screen repairing unit according to the fault phenomenon. Please refer to the opinion of the maintenance unit for confirmation of the specific maintenance capability and information on whether it can be repaired.
Item | Type | Fault | Photo | Can repair? | Reason |
1 | Line fault | Always bright vertical line (half-line) regardless of color | NO | ||
2 | Always bright vertical belt(half-line) colorinsensitive |
NO | |||
3 | Dark vertical line gray line colorless | NO | |||
4 | Dark vertical line(half line) gray line colorless | NO | |||
5 | Always bright horizontal line(half line) colorinsensitive |
NO | |||
6 | Dark horizontal line gray line colorless | NO | |||
7 | Dark horizontal line(half line) gray line colorless | NO | |||
8 | Dark cross gray line colorless | NO | |||
9 | Bright cross colorinsensitive There is a stress point electrode damage | NO | |||
10 | External injury (there is a force point) | NO | |||
11 | External injury (there is a force point) |
NO | |||
12 | external injury (there is a force point) | NO | |||
13 | Physical damage | NO | |||
14 | LCD vertical lines Accompanying spots leak |
NO | |||
15 | LCD screen dark spot leakage | NO | |||
16 | LCD screen dark spot leakage | NO | |||
17 | LCD screen color spots non-leakage | NO | |||
18 | LCD screen color spots non-leakage | NO | |||
19 | Half of image is normal, half of image is upside down | NO | Other substrate issues |
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20 | Image folding | NO | system settings problem |
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21 | A certain base color of image is abnormal | NO | Other substrate issue |
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22 | Image light and dark balance is abnormal | NO | Other substrate issue |
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23 | A certain primary color signal of the image is lost | NO | Other substrate issue |
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24 | Image luminance signal loss | NO | Other substrate issue |
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25 | Images are out of sync |
NO | Other substrate issue |
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26 | Image noise bands are not the same | NO | Other substrate issue |
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27 | Partial backlight not bright CCFL | NO | |||
28 | Partial backlight not bright CCFL |
NO | Other substrate issue |
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29 | There are even dark horizontal lines on image Quantity is 22 or 44 |
NO | Other substrate issue |
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30 | Image trailing | NO | Software or other board issue |