Configurations, methods, and devices for improved visual performance of a light-emitting element display and/or a camera recording an image from the display
The invention relates to a light source display, comprising a plurality of light-emitting elements (LEEs), such as for example LEDs, being arranged on a horizontal and vertical grid resulting in an array or a matrix of LEEs or LEDs forming a LEE or LED board. More particularly, the invention relates to a display with a drive circuit configuration comprising at least two drive circuits, wherein at least one of the LEEs or LEDs driven by a first driver of a first drive circuit is residing physically with a second drive circuit. Herewith, improved visual performance of the display can be achieved, as well as improved interplay of the display with a camera recording an image from the display, or else the display can be enhanced for 3D application.
1. A light-emitting diode (LED) display, comprising:
a plurality of LEDs,
wherein each of the plurality of LEDs comprises a plurality of LED dies,
wherein at least two of the plurality of LED dies of at least one of said LEDs are stacked on top of each other,
wherein, depending on the LED die fabrication, the LED dies are stacked according to a predetermined order, and
wherein the predetermined order of LED die fabrication being determined by a level of transparency, wherein the LED dies are stacked such that the LED die with a highest level of transparency is on top of the stacked LED dies.
2. A light-emitting diode (LED) display, comprising:
a plurality of LEDs,
wherein each of the plurality of LEDs comprises a plurality of LED dies including at least a first LED die, a second LED die, and a third LED die,
wherein the first LED die, the second LED die, and the third LED die have different levels of transparency, with the first LED die having a higher level of transparency than each of the second LED die and the third LED die, and the second LED die having a higher level of transparency than the third LED die,
wherein the first LED die, the second LED die, and the third LED die are stacked on top of each other such that the first LED die is stacked on top of the second LED die and the third LED die, and the second LED die is stacked on top of the third LED die, and
wherein two or more of the LED dies of the at least one of said LEDs have a different die size.
3. A light-emitting diode (LED) display, comprising:
a plurality of LEDs,
wherein each of the plurality of LEDs comprises a plurality of LED dies including at least a first LED die, a second LED die, and a third LED die,
wherein the first LED die, the second LED die, and the third LED die have different levels of transparency, with the first LED die having a higher level of transparency than each of the second LED die and the third LED die, and the second LED die having a higher level of transparency than the third LED die,
wherein the first LED die, the second LED die, and the third LED die are stacked on top of each other such that the first LED die is stacked on top of the second LED die and the third LED die, and the second LED die is stacked on top of the third LED die, and
wherein the die size of one or more of the LED dies is configured such that the LED outputs a predetermined color temperature.
4. A light-emitting diode (LED) display, comprising:
a plurality of LEDs,
wherein each of the plurality of LEDs comprises a plurality of LED dies including at least a first LED die, a second LED die, and a third LED die,
wherein the first LED die, the second LED die, and the third LED die have different levels of transparency, with the first LED die having a higher level of transparency than each of the second LED die and the third LED die, and the second LED die having a higher level of transparency than the third LED die,
wherein the first LED die, the second LED die, and the third LED die are stacked on top of each other such that the first LED die is stacked on top of the second LED die and the third LED die, and the second LED die is stacked on top of the third LED die, and
wherein
an area of the first LED die is 1 to 20% less than an area of the first second LED die or the third LED die,
or
an area of the first LED die or the second LED die is 1 to 20% less than an area of the third LED die.
5. A method for manufacturing a LED display according to claim 3 , having increased light output and/or reduced viewing angle differences, the method comprising:
forming a plurality of LEDs in an array;
wherein each of the plurality of LEDs is formed to include a plurality of LED dies,
wherein at least two of the plurality of LED dies of at least one of said LEDs are formed to be stacked on top of each other.
6. A light-emitting element (LEE) display, comprising a plurality of LEEs,
wherein each of the LEEs comprises a plurality of LEE subunits including at least a first LEE subunit, a second LEE subunit, and a third LEE subunit,
wherein the LEE subunit, the LEE subunit, and LEE subunit die have different levels of transparency, with the first LEE subunit having a higher level of transparency than each of the second LEE subunit and the third LEE subunit, and the second LEE subunit having a higher level of transparency than the third LEE subunit,
wherein the first LEE subunit, the second LEE subunit, and the third LEE subunit are stacked on top of each other such that the first LEE subunit is stacked on top of the second LEE subunit and the third LEE subunit, and the second LEE subunit is stacked on top of the third LEE subunit.
7. The LED display according to claim 2 , wherein each of the LEDs comprises at least three color LED dies, and
wherein each of the three color LED dies have a different die size.
8. The LED display according to claim 2 , wherein a comparative size of the two or more LED dies of the at least one of said LEDs are predetermined to obtain a desired color ratio or color brightness ratio of the at least one of said LEDs.
9. The light-emitting element (LEE) display according to claim 6 , wherein two or more of the LEE dies of the at least one of said LEEs have a different die size.
10. The light-emitting element (LEE) display according to claim 6 , wherein the die size of one or more of the LEE dies is configured such that the LEE outputs a predetermined color temperature.
11. The light-emitting element (LEE) display according to claim 6 , wherein the at least two of the plurality of LEE dies stacked on top of each other includes a first LEE die and a second LEE die, the second LEE die being stacked on top of the first LEE die, wherein an area of the second LEE die is 1 to 20% less than an area of the first LEE die.
12. A light-emitting diode (LED) display, comprising:
a plurality of LEDs,
wherein each of the plurality of LEDs comprises a plurality of LED dies including at least a first LED die, a second LED die, and a third LED die,
wherein the first LED die, the second LED die, and the third LED die are stacked such that the first LED die is arranged above the second LED die and the third LED die, and the second LED die is arranged between the first LED die and the third LED die,
wherein the first LED die has a higher level of transparency than each of the second LED die and the third LED die, and the second LED die has a higher level of transparency than the third LED die.
13. The LED display according to claim 12 , further comprising an electronical interface including a LED drive circuit having electrical connections that electrically connect to the plurality of LEDs, and electronics to light up the LEDs, wherein the plurality of LEDs are configured to be controlled by signals via the electronical interface.
14. The LED display according to claim 12 , wherein each of the plurality of LEDs comprises at least three color LED dies.
15. The LED display according to claim 12 , wherein each of the plurality of LED dies is defined by a die size.
16. The LED display according to claim 12 , wherein each of the plurality of LED dies is defined by a die color.
17. The LED display according to claim 12 , wherein each of the plurality of LED dies are defined by a die size and a die color.
18. The LED display according to claim 12 , wherein two or more of the plurality of LED dies are different in die color.
19. The LED display according to claim 12 , wherein two or more of the plurality of LED dies are different in die size and die color.
20. The LED display according to claim 12 , wherein said LED display comprises molding in between the LEDs.
21. The LED display according to claim 12 , further comprising a lenticular lens array applied in front of the plurality of LEDs.
22. The LED display according to claim 12 , wherein at least two of the plurality of LED dies of at least one of said plurality of LEDs are stacked directly on top of each other.
23. The LED display according to claim 12 , wherein the first LED die is stacked directly on top of the second LED die and/or the second LED die is stacked directly on top of the third LED die.
24. The LED display according to claim 12 , wherein an area of the first LED die is entirely overlapped by an area of the second LED die and/or an area of the second LED die is entirely overlapped by an area of the third LED die.