Serial row-select matrix-addressed system

• US 9,930,277 B2
• Filed: 01/21/2016
• Issued: 03/27/2018
• Est. Priority Date: 12/23/2015
• Status: Active Grant

• Current Assignee: X Display Company Technology Limited (Sensinnovat BVBA)
• Original Assignee: X-Celeprint Limited
• Inventors: Cok, Ronald S.
• Primary Examiner(s): Lam, Hung H
• Application Number:
  US15/003,721
• Publication Number:
  US 20170187976A1
• Time in Patent Office: 796 Days
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2310/0221 with use of split matrices G09G3/3644 and G09G3/3666 take precedence
• CPC Class Codes: G09G 2310/0267 Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
• CPC Class Codes: G09G 2310/0286 Details of a shift registers arranged for use in a driving circuit
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: G09G 3/3208 organic, e.g. using organic light-emitting diodes [OLED]
• CPC Class Codes: G09G 3/3611 Control of matrices with row and column drivers
• CPC Class Codes: H01L 27/14601 Structural or functional details thereof
• CPC Class Codes: H04N 25/74 Circuitry for scanning or addressing the pixel array

Abstract

A matrix-addressed system includes a system substrate and an array of pixels arranged in rows and columns disposed on the system substrate. A column-control circuit provides information to or receives information from the pixels. The column-control circuit includes a separate column-driver circuit connected to each column of pixels that provides information in common to all of the pixels in the column or receives information in common from all of the pixels in the column. A row-select circuit likewise disposed on the system substrate includes a serial shift register having a number of row storage elements equal to or larger than the number of rows in the array of pixels. Each row storage element in the shift register has a row-select line connected to all of the pixels in a row.

Claims

1. A matrix-addressed system, comprising:

a system substrate;

an array of pixels arranged in rows and columns disposed on the system substrate;

a column-control circuit for providing information to or receiving information from the pixels, the column-control circuit comprising a separate column-driver circuit connected to each column of pixels that provides information in common to all of the pixels in the column or receives information in common from all of the pixels in the column through a corresponding column line; and

a row-select circuit disposed on the system substrate, the row-select circuit comprising a serial shift register comprising a number of row storage elements equal to or larger than the number of rows in the array of pixels, each row storage element in the shift register comprising a corresponding row-select line connected to all of the pixels in a row,

wherein the pixels each comprise one or more light elements and wherein each pixel comprises a pixel circuit connected to the light elements of the pixel, connected to the column-driver circuit corresponding to the column in which the pixel is arranged, and connected to the row-select line corresponding to the row in which the pixel is arranged; and

wherein the pixel circuit comprises a pixel storage element that stores information in response to signals communicated by the row-select line and column-driver circuit to which the pixel circuit is connected.

2. The system of claim 1, wherein:

the light elements are light emitters or light-emitting diodes, or

the light elements are light sensors or photo-sensors sensitive to visible light, infrared light, ultraviolet light, x-rays, or electromagnetic radiation.

3. The system of claim 2, wherein each pixel comprises a pixel circuit that is connected to the light element(s) of the pixel, connected to the column line corresponding to the column in which the pixel is arranged, and connected to the row-select line corresponding to the row in which the pixel is arranged and wherein the pixel circuit is formed in or on one or more pixel substrates that are separate, distinct, and independent of the system substrate.

4. The system of claim 2, wherein the light elements are bare die or unpackaged semiconductor devices.

5. The system of claim 1, wherein the information is digital information.

6. The system of claim 5, wherein the serial shift register is a digital shift register comprising flip-flops or digital latches.

7. The system of claim 1, wherein the light elements are formed in or on one or more light-element substrates that are separate, distinct, and independent of the system substrate.

8. The system of claim 1, wherein the row-select circuit is formed in or on one or more row-select substrates that are separate, distinct, and independent of the system substrate.

9. The system of claim 8, wherein the row-select circuit comprises a plurality of serially connected separate, distinct, and independent row-select substrates that each comprises a row storage element and provides one or more but less than all of the row-select lines.

10. The system of claim 1, comprising a redundant row-select circuit connected in parallel with the row-select circuit.

11. The system of claim 1, wherein the system is a display system comprising an array of light emitters or the system is a sensor system comprising an array of sensors.

12. The system of claim 1, wherein the row-select circuit comprises a control element associated with one or more row storage elements that limits the operation of the one or more row storage elements to those row storage elements whose stored value changes.

13. A method of making a matrix-addressed system, comprising:

providing a system substrate, a column-control circuit, and a display controller;

disposing an array of pixels arranged in rows and columns on the system substrate;

providing a column-control circuit comprising a separate column-driver circuit connected to each column of pixels that provides information in common to all of the pixels in the column or receives information in common from all of the pixels in the column through a corresponding column line;

disposing a row-select circuit on the system substrate, the row-select circuit comprising a serial shift register comprising a number of row storage elements equal to or larger than the number of rows in the array of pixels, each row storage element in the shift register comprising a corresponding row-select output connected to all of the pixels in a row; and

electrically connecting the pixels to the row-select circuit and to the column-control circuit,

wherein disposing the row-select circuit comprises micro-transfer printing the row-select circuit onto the system substrate.

14. The method of claim 13, wherein disposing the array of pixels comprises micro-transfer printing one or more light elements onto the system substrate.

15. The method of claim 13, wherein micro-transfer printing an array of pixels comprises micro-transfer printing one or more light elements onto a pixel module substrate and disposing the pixel module substrate onto the system substrate.

16. The method of claim 13, wherein micro-transfer printing the row-select circuit onto the system substrate comprises micro-transfer printing a plurality of row-select substrates onto the system substrate, the row-select substrates each comprising at least a portion of the row-select circuit.

17. A matrix-addressed system, comprising:

an array of pixels arranged in rows and columns;

a column-control circuit for providing information to or receiving information from the pixels, the column-control circuit comprising a separate column-driver circuit connected to each column of pixels that provides or receives information in common to all of the pixels in the column through a corresponding column line;

a row-select circuit disposed on the system substrate, the row-select circuit comprising a serial shift register comprising a number of row storage elements equal to or larger than the number of rows in the array of pixels, each row storage element in the shift register comprising a corresponding row-select line connected to all of the pixels in a row; and

a system substrate and an array of pixel module substrates, wherein each pixel is disposed on a corresponding pixel module substrate, and wherein the pixel module substrates and the row select circuit are disposed on the system substrate.

18. A matrix-addressed system, comprising:

a system substrate;

an array of pixels arranged in rows and columns disposed on the system substrate;

a column-control circuit for providing information to or receiving information from the pixels, the column-control circuit comprising a separate column-driver circuit connected to each column of pixels that provides information in common to all of the pixels in the column or receives information in common from all of the pixels in the column through a corresponding column line; and

a row-select circuit disposed on the system substrate, the row-select circuit comprising a serial shift register comprising a number of row storage elements equal to or larger than the number of rows in the array of pixels, each row storage element in the shift register comprising a corresponding row-select line connected to all of the pixels in a row;

wherein the row-select circuit is formed in or on one or more row-select substrates that are separate, distinct, and independent of the system substrate; and

wherein the row-select circuit comprises a plurality of serially connected separate, distinct, and independent row-select substrates that each comprises a row storage element and provides one or more but less than all of the row-select lines.

19. A matrix-addressed system, comprising:

a system substrate;

an array of pixels arranged in rows and columns disposed on the system substrate;

a column-control circuit for providing information to or receiving information from the pixels, the column-control circuit comprising a separate column-driver circuit connected to each column of pixels that provides information in common to all of the pixels in the column or receives information in common from all of the pixels in the column through a corresponding column line; and

a row-select circuit disposed on the system substrate, the row-select circuit comprising a serial shift register comprising a number of row storage elements equal to or larger than the number of rows in the array of pixels, each row storage element in the shift register comprising a corresponding row-select line connected to all of the pixels in a row;

wherein the pixels each comprise one or more light elements, and the light elements are light emitters or light-emitting diodes, or the light elements are light sensors or photo-sensors sensitive to visible light, infrared light, ultraviolet light, x-rays, or electromagnetic radiation; and

wherein each pixel comprises a pixel circuit that is connected to the light element(s) of the pixel, connected to the column line corresponding to the column in which the pixel is arranged, and connected to the row-select line corresponding to the row in which the pixel is arranged and wherein the pixel circuit is formed in or on one or more pixel substrates that are separate, distinct, and independent of the system substrate.

20. The system of claim 19, wherein the one or more pixel substrates are disposed on the system substrate.

21. The system of claim 19, wherein the one or more pixel substrates and the light elements are disposed on a pixel module substrate separate and distinct from the system substrate, the one or more pixel substrates, and the light elements, and wherein the pixel module substrate is disposed on the system substrate.