Display controller having auxilary circuits in two FPGAs in connection

1. A display controller comprising:

n field-programmable gate arrays (FPGAs), wherein n is an integer greater than 1;

wherein a respective one of the n FPGAs comprises a first input circuit and an output circuit and a first process circuit connected between the first input circuit and the output circuit;

wherein the first input circuit is configured to receive a respective one first sub-image corresponding to the respective one of the n FPGAs, wherein n first sub-images respectively corresponding to the n FPGAs is combined to form one frame of initial image;

wherein the first process circuit is configured to enhance image-resolution of the respective one first sub-image corresponding to the respective one of the n FPGAs to obtain a respective one second sub-image corresponding to the respective one of the n FPGAs; and

wherein the output circuit is configured to deliver the respective one second sub-image corresponding to the respective one of the n FPGAs to a timing-controller;

wherein the respective one of the n FPGAs further comprises an auxiliary circuit connected to the first process circuit;

wherein the auxiliary circuit is configured to obtain an auxiliary sub-image corresponding to the respective one of the n FPGAs, the auxiliary sub-image is a sub-portion within the one frame of initial image physically next to the first sub-image corresponding to the respective one of the n FPGAs;

wherein the auxiliary circuit is further configured to enhance image-resolution of the first sub-image corresponding to the respective one of the n FPGAs based on the auxiliary sub-image; and

wherein the first input circuit in a respective one of the n FPGAs is configured to couple with the auxiliary circuit therein via the first process circuit therein; the auxiliary circuits respectively in two of the n FPGAs are in connection, wherein two first sub-images corresponding respectively to the two of the n FPGAs are two neighboring portions in the one frame of initial image.

2. The display controller of claim 1 , wherein the image-resolution of the second sub-image is at least two times of that of the first sub-image.

3. The display controller of claim 1 ,

wherein the auxiliary circuit is configured

to receive a reference sub-image sent from another auxiliary circuit in connection, wherein the reference sub-image comprises at least one portion of the first sub-image corresponding to a respective one of the n FPGAs comprising the another auxiliary circuit; and

to determine the auxiliary sub-image corresponding to the respective one of the n FPGAs based on the reference sub-image, wherein the auxiliary sub-image comprises at least one portion of the reference sub-image.

4. The display controller of claim 3 , wherein a total number of rows of pixels in the reference sub-image is equal to a total number of rows of pixels in the first sub-image; and

a total number of columns of pixels in the reference sub-image is one half of a total number of columns of pixels in the first sub-image.

5. The display controller of claim 3 , wherein the respective one of the n FPGAs further comprises a select circuit configured to connect the first input circuit with the first process circuit, and a second input circuit having a target interface and being connected with the output circuit via the select circuit;

wherein the select circuit is configured to select one of the first input circuit and the second input circuit to form a conduction path with the output circuit; and

the output circuit is configured to deliver the respective one second sub-image corresponding to the respective one of the n FPGAs to the timing-controller when the output circuit is in the conduction path with the first input circuit which receives the corresponding one first sub-image.

6. The display controller of claim 5 , wherein the respective one of the n FPGAs further comprises a second process circuit connected between the second input circuit and the select circuit,

wherein a respective one second input circuit of the respective one of the n FPGAs is configured to receive a respective group of n groups of third sub-images corresponding to the respective one of the n FPGAs from the target interface, wherein the n groups of third sub-images respectively corresponding to the n FPGAs are combined sequentially along row direction of pixels to form one frame of target image, wherein the respective group of the n groups of third sub-images includes m number of third sub-images sequentially along column direction of pixels, where m is an integer greater than 1;

wherein a respective one second process circuit of the respective one of the n FPGAs is configured to divide the respective group of the n groups of third sub-images to multiple fourth sub-images, wherein a total number of rows of pixels of a respective one fourth sub-image is equal to a total number of rows of pixels of the target image.

7. The display controller of claim 6 , wherein a respective one output circuit of the n FPGAs is configured to deliver the multiple fourth sub-images to the timing-controller when the output circuit is in the conduction path with the second input circuit.

8. The display controller of claim 7 , wherein the respective one output circuit of the n FPGAs further comprises a scan sub-circuit connected to both the first process circuit and the select circuit and an output sub-circuit connected to the timing-controller;

wherein the scan sub-circuit is configured to:

perform a scan process to the respective one second sub-image when the output circuit is in the conduction path with the first input circuit to make a scanning rate associated with the respective one second sub-image to be a target scanning rate set by the timing-controller; or

perform a scan process to a respective one of the multiple fourth sub-images when the output circuit is in the conduction path with the second input circuit to make a scanning rate associated with the respective one of the multiple fourth sub-images to be a target scanning rate set by the timing-controller.

9. The display controller of claim 8 , wherein the respective one output circuit of the n field-programmable gate arrays further comprises a synchronize sub-circuit connected to the scan sub-circuit and the output sub-circuit, wherein the synchronize sub-circuit is configured to perform a clock signal synchronization with each and every other synchronize sub-circuits of a corresponding (n-1) number of field-programmable gate arrays other than the respective one of the n FPGAs based on at least a single target clock signal before the output sub-circuit sends the respective one second or fourth sub-image that has been subjected the scan process to the timing-controller.

10. The display controller of claim 9 , wherein the respective one output circuit of the n field-programmable gate arrays further comprises a first adjust sub-circuit configured to connect both the first process circuit and the select circuit with the scan sub-circuit, wherein the first adjust sub-circuit is configured to perform a first image process to the respective one second or fourth sub-image in red-green-blue color mode for enhancing image quality before the output sub-circuit sends the respective one second or fourth sub-image that has been subjected to the first image process.

11. The display controller of claim 10 , wherein the respective one select circuit of the n FPGAs comprises a first select sub-circuit, a second adjust sub-circuit, and a second select sub-circuit connected to the first select sub-circuit and the first select sub-circuit, the auxiliary circuit being connected to a first input terminal of the first select sub-circuit, the second process circuit being connected to a second input terminal of the first select sub-circuit, the first process circuit being connected to a first output terminal of the second select sub-circuit, and the output circuit being connected to a second output terminal of the second select sub-circuit;

wherein the first select sub-circuit is configured to select one of the first input terminal and the second input terminal to be in a conduction path with the second adjust sub-circuit;

wherein the second select sub-circuit is configured to select the first output terminal to connect with the first process circuit when the first input terminal is connected to the second adjust sub-circuit and to select the second output terminal to connect with the second adjust sub-circuit when the second input terminal is connected to the second adjust sub-circuit.

12. The display controller of claim 11 , wherein the second adjust sub-circuit is configured to perform a second image process to the respective one first sub-image and the respective one auxiliary sub-image corresponding to the respective one of the n FPGAs for converting image color codes thereof to a target color mode when the first input terminal is connected to the second adjust sub-circuit; and to perform a second image process to the respective multiple fourth sub-images corresponding to the respective one of the n FPGAs for converting image color modes thereof to a target color mode when the second input terminal is connected to the second adjust sub-circuit.

13. The display controller of claim 1 , wherein a respective one output circuit of the respective one of the n FPGAs is configured to deliver an image to the timing-controller based on V-By-One standard protocol.

14. A display control system comprising:

the display controller of claim 1 ;

a system-on-chip; and

a timing-controller;

wherein the system-on-chip is coupled to the display controller to provide a respective one of n first sub-images corresponding to a respective one of n FPGAs in the display controller to generate a respective one second sub-image; and

the timing-controller is coupled to the display controller to receive n second sub-images generated from then first sub-images which are n portions of one frame of initial image.

15. A display apparatus comprising a display panel and the display control system of claim 14 , wherein the timing-controller connected between the display control system and the display panel.

16. A display control method using a display controller:

wherein the display controller comprises n field-programmable gate arrays (FPGAs), wherein n is an integer greater than 1;

a respective one of the n FPGAs comprises a first input circuit and an output circuit and a first process circuit connected between the first input circuit and the output circuit;

the method comprises:

receiving a respective one of n first sub-images corresponding to a respective one of the n FPGAs by the first input circuit;

combining n first sub-images respectively corresponding to the n FPGAs into one frame of initial image;

processing, by the first process circuit, the respective one of the n first sub-images corresponding to the respective one of the n FPGAs to obtain a respective one second sub-image with enhanced image-resolution corresponding to the respective one of the n FPGAs; and

sending, by the output circuit, the respective one second sub-image corresponding to the respective one of the n FPGAs to a timing-controller;

wherein the respective one of the n FPGAs further comprises an auxiliary circuit connected to the first process circuit;

the method further comprises:

obtaining, by the auxiliary circuit, an auxiliary sub-image corresponding to the respective one of the n FPGAs, wherein the auxiliary sub-image is a sub-portion within the one frame of initial image physically next to the first sub-image corresponding to the respective one of the n FPGAs; and

enhancing, by the auxiliary circuit, image-resolution of the first sub-image corresponding to the respective one of the n FPGAs based on the auxiliary sub-image; and

coupling the first input circuit in a respective one of the n FPGAs with the auxiliary circuit therein via the first process circuit therein;

wherein the auxiliary circuits respectively in two of the n FPGAs are in connection; and

two first sub-images corresponding respectively to the two of the n FPGAs are two neighboring portions in the one frame of initial image.