PARALLEL REDUNDANT CHIPLET SYSTEM

• US 20170025075A1
• Filed: 07/23/2015
• Published: 01/26/2017
• Est. Priority Date: 07/23/2015
• Status: Active Application

• Current Assignee: X Display Company Technology Limited (Sensinnovat BVBA)
• Original Assignee: X-Celeprint Limited
• Inventors: Cok, Ronald S., Rotzoll, Robert R., Bower, Christopher, Meitl, Matthew
• Granted Patent: US 10,255,834 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G09G 2300/0408 Integration of the drivers onto the display substrate
• CPC Class Codes: G09G 2320/0693 Calibration of display systems
• CPC Class Codes: G09G 2330/08 Fault-tolerant or redundant circuits, or circuits in which repair of defects is prepared
• CPC Class Codes: G09G 3/2003 Display of colours specific for liquid crystal displays G09G3/3607
• CPC Class Codes: G09G 3/32 semiconductive, e.g. using light-emitting diodes [LED]

Abstract

A parallel redundant integrated-circuit system includes an input connection, an output connection and first and second active circuits. The first active circuit includes one or more first integrated circuits and has an input connected to the input connection and an output connected to the output connection. The second active circuit includes one or more second integrated circuits and is redundant to the first active circuit, has an input connected to the input connection, and has an output connected to the output connection. The second integrated circuits are separate and distinct from the first integrated circuits.

Claims

1. A parallel redundant integrated-circuit system, comprising:

a common input connection;

a common output connection;

a first active circuit comprising one or more first integrated circuits, the first active circuit having an input connected to the common input connection and an output connected to the common output connection; and

a second active circuit comprising one or more second integrated circuits, the second active circuit redundant to the first active circuit and having an input connected to the common input connection and an output connected to the common output connection, wherein the one or more second integrated circuits are separate and distinct from the one or more first integrated circuits.

2. The parallel redundant integrated-circuit system of claim 1, wherein the common input or common output connection is a signal connection.

4. The parallel redundant integrated-circuit system of claim 1, comprising a plurality of common input connections that comprises the common input connection.

6. The parallel redundant integrated-circuit system of claim 1, comprising a plurality of common output connections that comprises the common output connection.

7. The parallel redundant integrated-circuit system of claim 1, wherein the common input connection is connected to the common output connection through the first and second active circuits or wherein the first and second active circuits include a signal-transfer element and the common input connection is connected to the common output connection through the signal-transfer element.

8. The parallel redundant integrated-circuit system of claim 1, wherein the first active circuit comprises a first light emitter and the second active circuit comprises a second light emitter.

9. The parallel redundant integrated-circuit system of claim 1, wherein the first active circuit comprises a first driver circuit and the second active circuit comprises a second driver circuit.

10. The parallel redundant integrated-circuit system of claim 9, wherein:

the first active circuit comprises a first red-light emitter that emits red light, a first green-light emitter that emits green light, and a first blue-light emitter that emits blue light;

the first driver circuit comprises a first red driver circuit driving the first red-light emitter, a first green driver circuit driving the first green-light emitter, and a first blue driver circuit driving the first blue-light emitter;

the second active circuit comprises a second red-light emitter that emits red light, a second green-light emitter that emits green light, and a second blue-light emitter that emits blue light; and

the second driver circuit comprises a second red driver circuit driving the second red-light emitter, a second green driver circuit the second green-light emitter, and a second blue driver circuit driving the second blue-light emitter.

11. The parallel redundant integrated-circuit system of claim 1, wherein the first driver circuit comprises a first bit-to-current convertor and the second driver circuit comprises a second bit-to-current convertor.

12. The parallel redundant integrated-circuit system of claim 1, wherein the first active circuit comprises a first storage element and the second active circuit comprises a second storage element.

14. The parallel redundant integrated-circuit system of claim 1, wherein the common input connection, the common output connection, the first active circuit, and the second active circuit form a component group, and the parallel redundant integrated-circuit system comprising a plurality of component groups.

15. The parallel redundant integrated-circuit system of claim 14, wherein the plurality of component groups comprises a first component group and a second component group and wherein the common output connection of the first component group is connected to the common input connection of the second component group.

16. The parallel redundant integrated-circuit system of claim 14, wherein the first and second active circuits of each component group of the plurality of component groups each comprise one or more light emitters.

3. (canceled)

5. (canceled)

13. (canceled)

17-18. -18. (canceled)

19. A parallel redundant integrated-circuit system, comprising:

a common input connection;

a first active circuit comprising one or more first integrated circuits and at least one light emitter, the first active circuit having an input connected to the common input connection;

a second active circuit comprising one or more second integrated circuits and at least one light emitter, the second active circuit redundant to the first active circuit and having an input connected to the common input connection; and

wherein the second integrated circuits are separate and distinct from the first integrated circuits.

20. The parallel redundant integrated-circuit system of claim 19, wherein:

the at least one light emitter of the first active circuit comprises a first red-light emitter that emits red light, a first green-light emitter that emits green light, and a first blue-light emitter that emits blue light; and

the at least one light emitter of the second active circuit comprises a second red-light emitter that emits red light, a second green-light emitter that emits green light, and a second blue-light emitter that emits blue light.

21. The parallel redundant integrated-circuit system of claim 20, wherein the parallel redundant integrated-circuit system is a display.

22-33. -33. (canceled)

34. A method of calibrating a parallel redundant integrated-circuit system, comprising:

providing, by a controller having a memory, a control signal to a plurality of component groups each having a first active circuit and a second active circuit, wherein;

each first active circuit comprises a first light emitter and has an input connected to a common input connection and an output connected to a common output connection; and

each second active circuit comprises a second light emitter, wherein the second active circuit is redundant to the first active circuit, the second active circuit has an input connected to the common input connection and an output connected to the common output connection, and the second light emitter is separate and distinct from the first light emitter;

measuring, by a light measurement and calibration device, light emitted from the component groups; and

determining, by the light measurement and calibration device, that the light emitted by a first component group is less than the light emitted by a second component group;

storing, in the controller memory, a first calibration value for the first component group and used to calibrate a control signal so that the light emitted light by the first component group is substantially the same as the light emitted by the second component group when the control signal is provided in common to a plurality of component groups including a faulty component group.

35. The parallel redundant integrated-circuit system of claim 34, wherein the first calibration value for a light emitter in the first component group is a factor of two of a second calibration value for a corresponding light emitter in the second component group.

36. A parallel redundant integrated-circuit display, comprising:

an array of component groups, each component group having one or more integrated circuits and two or more redundant light emitters having a common input connection and a common output connection, wherein the one or more integrated circuits respond to control signals to drive the two or more light emitters in parallel to emit light, and wherein the two or more redundant light emitters are separate and distinct from each other.

37. The parallel redundant integrated-circuit display of claim 36, wherein the component groups comprise:

one or more red-light component groups, the two or more redundant light emitters in each red-light component group comprising two or more redundant red-light emitters that emit red light and have a common input and a common output;

one or more green-light component groups, the two or more redundant light emitters in each green-light component group comprising two or more redundant green-light emitters that emit green light and have a common input and a common output; and

one or more blue-light component groups, the two or more redundant light emitters in each blue-light component group comprising two or more redundant blue-light emitters that emit blue light and have a common input and a common output.

38-55. -55. (canceled)