Luminance compensation method of light-emitting device

Abstract

A luminance compensation method of a light-emitting device is disclosed. The light-emitting device has a plurality of light-emitting elements. The luminance compensation method includes following steps of: obtaining a position of at least one of the light-emitting elements in a brightness anomalous status; and changing a brightness of at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status for compensating a brightness of the light-emitting elements in the brightness anomalous status.

What is claimed is: 
     
       1. A luminance compensation method of a light-emitting device, wherein the light-emitting device comprises a plurality of light-emitting elements, the luminance compensation method comprising steps of:
 obtaining a position of at least one of the light-emitting elements element in a brightness anomalous status, among the light-emitting elements; and 
 changing a brightness of at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status for compensating a brightness of the light-emitting element in the brightness anomalous status, 
 wherein there are N of the light-emitting elements spaced from the light-emitting element in the brightness anomalous status by a first distance, the N light-emitting elements emit light with a same color the same as the light-emitting element in the brightness anomalous status, and there are M of the light-emitting elements configured for compensating the light-emitting element in the brightness anomalous status, where M is less than or equal to N, and M and N are respectively an integer greater than or equal to 1, and 
 wherein the light-emitting element in the brightness anomalous status has a luminance L1, a difference between the luminance L1 and a normal luminance L is (L1−L), and a luminance of each of the M light-emitting elements configured for compensating the light-emitting element in the brightness anomalous status is between L and (L−(L1−L)). 
 
     
     
       2. The luminance compensation method according to  claim 1 , wherein the position of the light-emitting element in the brightness anomalous status corresponds to a dark spot or a bright spot. 
     
     
       3. The luminance compensation method according to  claim 1 , before the step of obtaining the position of at least one of the light-emitting elements element in the brightness anomalous status, further comprising a step of:
 turning on the light-emitting device according to at least one preset gray-level value. 
 
     
     
       4. The luminance compensation method according to  claim 3 , after the step of turning on the light-emitting device according to the preset gray-level value, further comprising a step of:
 retrieving an image of the light-emitting elements for determining the position of the light-emitting element in the brightness anomalous status. 
 
     
     
       5. The luminance compensation method according to  claim 3 , after the step of turning on the light-emitting device according to the preset gray-level value, further comprising a step of:
 measuring a voltage value or a current value of the light-emitting elements for determining the position of the light-emitting element in the brightness anomalous status. 
 
     
     
       6. The luminance compensation method according to  claim 1 , wherein the step of changing the brightness of at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status for compensating the brightness of the light-emitting element in the brightness anomalous status is to change a brightness peak or a duty cycle of the at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status. 
     
     
       7. The luminance compensation method according to claim  claim 1 , wherein there are P of the light-emitting elements spaced from the light-emitting element in the brightness anomalous status by a second distance, the P light-emitting elements emit light with a same color the same as the light-emitting element in the brightness anomalous status, and there are Q of the light-emitting elements configured for compensating the light-emitting element in the brightness anomalous status, where Q is less than or equal to P, and P and Q are respectively an integer greater than or equal to 1. 
     
     
       8. The luminance compensation method according to  claim 7 , wherein the light-emitting element in the brightness anomalous status has a luminance L2, a difference between the luminance L2 and a the normal luminance L is (L2−L), and a luminance of each of the Q light-emitting elements configured for compensating the light-emitting element in the brightness anomalous status is between L and (L−(L2−L)). 
     
     
       9. The luminance compensation method according to  claim 1 , before the step of changing the brightness of at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status for compensating the brightness of the light-emitting element in the brightness anomalous status, further comprising a step of:
 removing at least a part of a light-mixing preventing layer disposed between the light-emitting element in the brightness anomalous status and the at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status. 
 
     
     
       10. The luminance compensation method according to  claim 1 , wherein each of the light-emitting element elements is a Mini LED or a Micro LED. 
     
     
       11. A luminance compensation method of a light-emitting device, wherein the light-emitting device comprises a plurality of light-emitting elements, the luminance compensation method comprising:
 obtaining a position of at least one of the light-emitting elements in a brightness anomalous status;   removing at least a part of a light-mixing preventing layer disposed between the light-emitting element in the brightness anomalous status and the at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status, so that a compensation light emitted from the at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status enters a position of the light-emitting element in the brightness anomalous status; and   changing a brightness of at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status for compensating a brightness of the light-emitting element in the brightness anomalous status.   
     
     
       12. The luminance compensation method according to  claim 11 , wherein the position of the light-emitting element in the brightness anomalous status corresponds to a dark spot or a bright spot. 
     
     
       13. The luminance compensation method according to  claim 11 , before said obtaining the position of at least one of the light-emitting elements in the brightness anomalous status, further comprising:
 turning on the light-emitting device according to at least one preset gray-level value.   
     
     
       14. The luminance compensation method according to  claim 13 , after said turning on the light-emitting device according to the preset gray-level value, further comprising:
 retrieving an image of the light-emitting elements for determining the position of the light-emitting element in the brightness anomalous status.   
     
     
       15. The luminance compensation method according to  claim 13 , after said turning on the light-emitting device according to the preset gray-level value, further comprising:
 measuring a voltage value or a current value of the light-emitting elements for determining the position of the light-emitting element in the brightness anomalous status.   
     
     
       16. The luminance compensation method according to  claim 11 , wherein said changing the brightness of at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status for compensating the brightness of the light-emitting element in the brightness anomalous status is to change a brightness peak or a duty cycle of the at least one of the light-emitting elements disposed adjacent to the light-emitting element in the brightness anomalous status. 
     
     
       17. The luminance compensation method according to  claim 11 , wherein there are N of the light-emitting elements spaced from the light-emitting element in the brightness anomalous status by a first distance, the N light-emitting elements emit light with a color the same as the light-emitting element in the brightness anomalous status, there are M of the light-emitting elements configured for compensating the light-emitting element in the brightness anomalous status, M is less than or equal to N, and M and N are respectively an integer greater than or equal to 1. 
     
     
       18. The luminance compensation method according to  claim 17 , wherein the light-emitting element in the brightness anomalous status has a luminance L1, a difference between the luminance L1 and a normal luminance L is (L1−L), and a luminance of each of the M light-emitting elements configured for compensating the light-emitting element in the brightness anomalous status is between L and (L−(L1−L)). 
     
     
       19. The luminance compensation method according to  claim 17 , wherein there are P of the light-emitting elements spaced from the light-emitting element in the brightness anomalous status by a second distance, the P light-emitting elements emit light with a color the same as the light-emitting element in the brightness anomalous status, there are Q of the light-emitting elements configured for compensating the light-emitting element in the brightness anomalous status, Q is less than or equal to P, and P and Q are respectively an integer greater than or equal to 1, wherein the light-emitting element in the brightness anomalous status has a luminance L2, a difference between the luminance L2 and a normal luminance L is (L2−L), and a luminance of each of the Q light-emitting elements configured for compensating the light-emitting element in the brightness anomalous status is between L and (L−(L2−L)). 
     
     
       20. The luminance compensation method according to  claim 11 , wherein the light-emitting element is a Mini LED or a Micro LED. 
     
     
       21. The luminance compensation method according to  claim 1 , wherein the light-emitting device comprises a plurality of pixels, and each of the plurality of pixels comprises at least one of the light-emitting elements.  
     
     
       22. The luminance compensation method according to  claim 21 , wherein the plurality of pixels are arranged in a stripe shape, a delta shape, or a mosaic shape. 
     
     
       23. The luminance compensation method according to  claim 1 , wherein the light-emitting element in the brightness anomalous status has a brightness out of a range of ±10% of an average brightness of the N light-emitting elements in the same color. 
     
     
       24. The luminance compensation method according to  claim 1 , wherein the light-emitting device further comprises:
 a first substrate having a surface on which the light-emitting elements are disposed; and   a second substrate disposed opposite the first substrate, wherein the light-emitting elements are disposed between the first substrate and the second substrate.   
     
     
       25. The luminance compensation method according to  claim 24 , wherein the first substrate comprises an active matrix circuit substrate. 
     
     
       26. The luminance compensation method according to  claim 24 , wherein the first substrate comprises a matrix circuit configured to drive at least one of the light-emitting elements. 
     
     
       27. The luminance compensation method according to  claim 24 , wherein the light-emitting device further comprises a light-mixing preventing layer disposed between the first substrate and the second substrate. 
     
     
       28. The luminance compensation method according to  claim 27 , wherein the light-mixing preventing layer comprises a black matrix layer. 
     
     
       29. The luminance compensation method according to  claim 27 , wherein the light-mixing preventing layer extends from the first substrate to the second substrate, and wherein the light-mixing preventing layer is separated from the second substrate and does not contact the second substrate. 
     
     
       30. The luminance compensation method according to  claim 24 , wherein the light-emitting device further comprises a sealant layer disposed at outer peripheries of the first substrate and the second substrate. 
     
     
       31. The luminance compensation method according to  claim 24 , wherein the light-emitting device comprises an adhesive layer or a film layer. 
     
     
       32. The luminance compensation method according to  claim 1 , wherein the luminance of each of the M light-emitting elements is set to be (L-(L1-L)/2).  
     
     
       33. The luminance compensation method according to  claim 5 , further comprising determining a position of a first light-emitting element as the position of the light-emitting element in the brightness anomalous status when a measurement of a voltage value or a current value of the first light-emitting element is out of a range of ±10% of a corresponding voltage value or current value of the N light-emitting elements. 
     
     
       34. The luminance compensation method according to  claim 5 , wherein the light-emitting element in the brightness anomalous status has a brightness lower than a corresponding brightness of the N light-emitting elements.