Sub-pixel rendering data conversion apparatus and method

Patent metadata

Field	Value
Publication number	US-10621932-B1
Application number	US-201816158325-A
Country	US
Kind code	B1
Filing date	Oct 12, 2018
Priority date	Oct 12, 2018
Publication date	Apr 14, 2020
Grant date	Apr 14, 2020

Abstract

A sub-pixel rendering data conversion apparatus including an inverse sub-pixel rendering circuit and a sub-pixel rendering circuit is provided. The inverse sub-pixel rendering circuit receives the first sub-pixel rendering data converted from the first true image data and converting the first sub-pixel rendering data to the second true image data, and the first sub-pixel rendering data includes data of the first sub-pixel rendering arrangement. The sub-pixel rendering circuit converts the second true image data to the second sub-pixel rendering data and outputs the second sub-pixel rendering data to a display panel, the second sub-pixel rendering data includes data of the second sub-pixel rendering arrangement, and the display panel includes a plurality of sub-pixels arranged in the manner of the second sub-pixel rendering arrangement.

First claim

What is claimed is:

1. A sub-pixel rendering data conversion apparatus, comprising:
an inverse sub-pixel rendering circuit, receiving a first sub-pixel rendering data converted from a first true image data and converting the first sub-pixel rendering data to a second true image data, wherein the first sub-pixel rendering data comprises data of a first sub-pixel rendering arrangement; and
a sub-pixel rendering circuit, converting the second true image data to a second sub-pixel rendering data and outputting the second sub-pixel rendering data to a display panel, wherein the second sub-pixel rendering data comprises data of a second sub-pixel rendering arrangement, and the display panel comprises a plurality of sub-pixels arranged in the manner of the second sub-pixel rendering arrangement.

2. The sub-pixel rendering data conversion apparatus as recited in claim 1 , wherein the inverse sub-pixel rendering circuit and the sub-pixel rendering circuit are located in a driver chip.

3. The sub-pixel rendering data conversion apparatus as recited in claim 2 , further comprising a data processing circuit located in the driver chip, wherein the second true image data is further processed by the data processing circuit.

4. The sub-pixel rendering data conversion apparatus as recited in claim 1 , wherein the sub-pixel rendering circuit is located in a driver chip, and the inverse sub-pixel rendering circuit is located in a decoder chip.

5. The sub-pixel rendering data conversion apparatus as recited in claim 4 , further comprising a data processing circuit located in the driver chip, wherein the second true image data is further processed by the data processing circuit.

6. The sub-pixel rendering data conversion apparatus as recited in claim 1 , wherein the first sub-pixel rendering arrangement and the second sub-pixel rendering arrangement are different.

7. A sub-pixel rendering data conversion method, comprising:
receiving a first sub-pixel rendering data converted from a first true image data, wherein the first sub-pixel rendering data comprises data of a first sub-pixel rendering arrangement;
converting the first sub-pixel rendering data to a second true image data by an inverse sub-pixel rendering circuit;
converting the second true image data to a second sub-pixel rendering data by a sub-pixel rendering circuit, wherein the second sub-pixel rendering data comprises data of a second sub-pixel rendering arrangement; and
outputting the second sub-pixel rendering data to a display panel, wherein the display panel comprises a plurality of sub-pixels arranged in the manner of the second sub-pixel rendering arrangement.

8. The sub-pixel rendering data conversion method as recited in claim 7 , wherein the inverse sub-pixel rendering circuit and the sub-pixel rendering circuit are located in a driver chip.

9. The sub-pixel rendering data conversion method as recited in claim 8 , further comprising:
processing the second true image data by a data processing circuit located in the driver chip.

10. The sub-pixel rendering data conversion method as recited in claim 7 , wherein the sub-pixel rendering circuit is located in a driver chip, and the inverse sub-pixel rendering circuit is located in a decoder chip.

11. The sub-pixel rendering data conversion method as recited in claim 10 , further comprising:
processing the second true image data by a data processing circuit located in the driver chip.

12. The sub-pixel rendering data conversion method as recited in claim 7 , wherein the first sub-pixel rendering arrangement and the second sub-pixel rendering arrangement are different.

13. A sub-pixel rendering data conversion apparatus, comprising:
a sub-pixel rendering circuit, configured to receive a first sub-pixel rendering data converted from a first true image data and convert the first sub-pixel rendering data to a second true image data at a first time, wherein the first sub-pixel rendering data comprises data of a first sub-pixel rendering arrangement, and
the sub-pixel rendering circuit is configured to convert the second true image data to a second sub-pixel rendering data and output the second sub-pixel rendering data to a display panel at a second time, wherein the second sub-pixel rendering data comprises data of a second sub-pixel rendering arrangement, and the display panel comprises a plurality of sub-pixels arranged in the manner of the second sub-pixel rendering arrangement.

14. The sub-pixel rendering data conversion apparatus as recited in claim 13 , wherein a controller controls the sub-pixel rendering circuit to perform an inverse function at the first time and a forward function at the second time.

15. The sub-pixel rendering data conversion apparatus as recited in claim 13 , wherein the sub-pixel rendering circuit is located in a driver chip.

16. The sub-pixel rendering data conversion apparatus as recited in claim 13 , wherein the sub-pixel rendering circuit is located in a decoder chip.

17. The sub-pixel rendering data conversion apparatus as recited in claim 15 , further comprising a data processing unit located in the driver chip, wherein the second true image data is further processed by the data processing unit.

Assignees

• Novatek Microelectronics Corp

Inventors

• Su Shang-Yu
• Lin Cheng-Wen
• Pai Feng-Ting

Classifications

• G09G2340/0457

  Improvement of perceived resolution by subpixel rendering · CPC title

• G09G5/04

  using circuits for interfacing with colour displays · CPC title

• G09G5/005

  Adapting incoming signals to the display format of the display terminal · CPC title

• G09G3/2074 Primary

  using sub-pixels · CPC title

• G09G2300/0452

  Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components · CPC title