OLED display modules for large-format OLED displays
View Patent ↗OLED display modules for large-format displays are disclosed. The OLED display module includes a matrix of OLEDs, with each OLED having an anode and a cathode, and an OLED drive circuit having electrical connections defined by rows and columns that electrically connect to the OLEDs in the OLED matrix. Groups of adjacent rows are arranged in parallel and groups of adjacent columns are arranged in parallel, thereby defining super pixels each having an array of four or more OLEDS, wherein the OLEDs in a given super pixel cannot be individually activated. The modules can be combined to form the large-format display.
1. An organic light-emitting diode (OLED) display module, comprising:
a matrix of OLEDs, with each OLED having an anode and a cathode; and
an OLED drive circuit having electrical connections defined by rows and columns that electrically connect to the OLEDs in the OLED matrix,
wherein groups of i adjacent rows are arranged in parallel and wherein groups of j adjacent columns are arranged in parallel, thereby defining super pixels each having an i×j array of OLEDS, wherein i and j are integers equal to or greater than 2, and wherein the OLEDs in a given super pixel cannot be individually activated, and
wherein some of the super pixels are edge super pixels, and wherein the display module does not emit light visible to an observer from regions where at least some of the edge super pixels are located.
2. The OLED display module according to claim 1 , wherein the OLED display module includes n rows and k columns of super pixels, wherein n and k are integers, further wherein the OLED drive circuit has a common-anode configuration, including only k current sinks and only k column switches, with each super pixel column including one of the current sinks and one of the column switches, and the OLED drive circuit including only n voltage inputs and only n row switches with each super pixel row including one of the voltage inputs and one of the row switches.
3. The OLED display module according to claim 1 , wherein the OLEDs in the matrix of OLEDs emit light of substantially the same wavelength.
4. The OLED display module according to claim 1 , wherein OLEDs within one of the super pixels emit a different color of light than other OLEDs within the same super pixel.
5. The OLED display module according to claim 4 , wherein at least one OLED within the super pixel emits red light, at least one OLED within the super pixel emits green light and at least one OLED within the super pixel emits blue light.
6. The OLED display module according to claim 4 , wherein the colors of light emitted by OLEDs within the super pixel include two or more of red, green, blue, yellow, white, orange, magenta or cyan.
7. The OLED display module according to claim 1 , wherein some of the super pixels are edge super pixels, and wherein at least some of the edge super pixels are inactive.
8. The OLED display module according claim 1 , wherein some of the super pixels have edge sub-pixels, and wherein one or more of the edge sub-pixels are inactive.
9. The OLED display module according claim 8 , wherein each of the edge sub-pixels in each super pixel is inactive.
10. The OLED display module according to claim 1 , further including a circuit controller electrically connected to the rows and columns.
11. The OLED display module according to claim 1 , wherein the circuit controller is electrically connected to the rows and columns via a ball-grid-array (BGA) structure.
12. The OLED display module according to claim 1 , wherein the OLED display module includes a plurality of monochrome modules arranged in a layered configuration, at least one of the monochrome modules configured to emit a different color of light than another one of the monochrome modules, further wherein each of the monochrome modules includes at least one of the matrix of OLEDs defining super pixels, wherein the OLEDs in at least one super pixel in at least one monochrome module cannot be individually activated.
13. An organic light-emitting diode (OLED) display module, comprising:
a matrix of OLEDs, with each OLED having an anode and a cathode, wherein some of the OLEDs constitute edge OLEDs;
an OLED drive circuit having electrical connections defined by rows and columns that electrically connect to the OLEDs in the OLED matrix wherein at least some of the edge OLEDs are not electrically connected to the OLED drive circuit,
wherein groups of adjacent rows are arranged in parallel and wherein groups of adjacent columns are arranged in parallel, thereby defining super pixels each having an array of at least four OLEDS, and wherein the OLEDs in a given super pixel cannot be individually activated, and
wherein the OLED display module includes n rows and k columns of super pixels, wherein n and k are integers, further wherein the OLED drive circuit includes only n row switches and only k column switches, each super pixel row including one of the row switches and each super pixel column including one of the column switches.
14. The OLED display module according to claim 13 , further wherein the OLED drive circuit has a common-anode configuration, including only k current sinks, and only n voltage inputs, each super pixel column including one of the current sinks and one of the column switches and each super pixel row including one of the voltage inputs and one of the row switches.
15. The OLED display module according to claim 13 , wherein the OLED drive circuit has a common-cathode configuration.
16. The OLED display module according to claim 13 , wherein all of the edge OLEDs are not electrically connected to the OLED drive circuit and are not included in any of the super pixels.
17. The OLED display module according to claim 13 , wherein the module includes four edges, and wherein all of the edge OLEDs that reside along at least one of the four edges of the module are not electrically connected to the OLED drive circuit.
18. The OLED display module according to claim 13 , wherein OLEDs within one of the super pixels emits a different color of light than other OLEDs within the super pixel.
19. The OLED display module according to claim 18 , wherein colors of light emitted by OLEDs within the super pixel include two or more of red, green, blue, yellow, white, orange, magenta and cyan.
20. The OLED display module according to claim 13 , wherein each super pixel includes edge sub pixels, and wherein at least some of the edge sub pixels in each super pixel are inactive.
21. The OLED display module according to claim 20 , wherein all of the edge sub pixels in each super pixel are inactive.
22. The OLED display module according to claim 13 , wherein the module is a color module including a plurality of monochrome modules arranged in a layered configuration, at least one of the monochrome modules configured to emit a different color of light than another one of the monochrome modules, wherein each of the monochrome modules includes one of the matrix of OLEDs defining super pixels, wherein the OLEDs in a given super pixel in a given monochrome module cannot be individually activated.
23. An organic light-emitting diode (OLED) display module, comprising:
a matrix of OLEDs, with each OLED having an anode and a cathode ; and
an OLED drive circuit having electrical connections defined by rows and columns that electrically connect to the OLEDs in the OLED matrix,
wherein groups of i adjacent rows are arranged in parallel and wherein groups of j adjacent columns are arranged in parallel, thereby defining super pixels each having an i x j array of OLEDS, wherein i and j are integers equal to or greater than 2, and wherein the OLEDs in a given super pixel cannot be individually activated, and
wherein some of the super pixels have edge sub-pixels, and wherein the display module does not emit light visible to an observer from regions where one or more of the edge sub-pixels are located.
24. An organic light-emitting diode (OLED) display module, comprising:
a matrix of OLEDs, with each OLED having an anode and a cathode; and
an OLD drive circuit having electrical connections defined by rows and columns that electrically connect to the OLEDs in the OLED matrix,
wherein groups of i adjacent rows are arranged in parallel and wherein groups of j adjacent columns are arranged in parallel, thereby defining super pixels each having an i x j array of OLEDS, wherein i and j are integers equal to or greater than 2, and wherein the OLEDs in a given super pixel cannot be individually activated,
wherein some of the super pixels are edge super pixels, and wherein the display module does not emit light visible to an observer from regions where at least some of the edge super pixels are located, and
wherein the OLED display module includes n rows and k columns of super pixels, wherein n and k are integers, further wherein the OLED drive circuit includes only n row switches and only k column switches, each super pixel row including one of the row switches and each super pixel column including one of the column switches.