# US 10,311,771 B2 · Display device, image data processing apparatus and method

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- Number: US 10,311,771 B2
- Document ID: US10311771B2
- Status: Granted
- Kind: B2
- Application number: 15/149,307
- Filed: 2016-05-09
- Published: 2017-06-22
- Granted: 2019-06-04
- Earliest claimed: 2015-12-16
- Assignees: EverDisplay Optronics (Shanghai) Limited
- Applicants: Everdisplay Optronics (Shanghai) Limited
- Inventors: Lina Xiao
- Web page: https://patentgrep.com/patent/US10311771B2

## CPC

- G09G 3/2074: {using sub-pixels}
- G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)}
- G09G 3/3208: organic, e.g. using organic light-emitting diodes [OLED]
- G09G 3/3275: Details of drivers for data electrodes
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

The present disclosure provides a display device, and an image data processing apparatus and method. The image data processing apparatus is applied in a pixel matrix, and includes: an edge detecting module, configured to receive to-be-displayed image data in the pixel matrix, and perform edge detection on the to-be-displayed image data to acquire edge pixels located at an edge of a predetermined type; a subpixel selecting module, configured to judge whether the first and second subpixels in the edge pixels are located on an even more outer side at the edge of the predetermined type relative to the third subpixel, and select the first and second subpixels located on the even more outer side at the edge of the predetermined type relative to the third subpixel as to-be-adjusted subpixels; a luminance attenuating module, configured to perform luminance attenuation on the to-be-adjusted subpixels; and a data transmitting module.

## Claims

### Claim 1

An image data processing apparatus, applied in a pixel matrix, each pixel in the pixel matrix comprising a first subpixel and a second subpixel located in a first subpixel row and a third subpixel located in a second subpixel row, each of the first subpixel row and second subpixel row being formed by first to third subpixels aligned repeatedly;
wherein the image data processing apparatus comprises:
an edge detecting module, configured to receive to-be-displayed image data in the pixel matrix, and perform edge detection on the to-be-displayed image data to acquire edge pixels located at an edge of a predetermined type;
a subpixel selecting module, configured to judge whether the first and second subpixels in the edge pixels are located on an even more outer side at the edge of the predetermined type relative to the third subpixel, and select the first and second subpixels located on the even more outer side at the edge of the predetermined type relative to the third subpixel as to-be-adjusted subpixels;
a luminance attenuating module, configured to perform luminance attenuation on the to-be-adjusted subpixels according to a predetermined luminance attenuation coefficient, to obtain to-be-transmitted image data; and
a data transmitting module, configured to transmit the to-be-transmitted image data to a source driver.

### Claim 2 (depends on 1)

The image data processing apparatus according to claim 1, wherein the edge of the predetermined type is an edge parallel to an extension direction of the first and second subpixel rows.

### Claim 3 (depends on 2)

The image data processing apparatus according to claim 2, wherein in a pixel in the mth row and the nth column in the pixel matrix, the first and second subpixels are located in the 2m−1th subpixel row, and the third subpixel is located in the 2mth subpixel row; in a pixel in the mth row and n+1th column in the pixel matrix, the first and second subpixels are located in the 2mth subpixel row, and the third subpixel is located in the 2m−1th subpixel row; and
the subpixel selecting module judges, according to positions of the edge pixels in the pixel matrix and the type of the edge where the edge pixels are located, whether the first and second subpixels in the edge pixels are located at the even more outer side at the edge of the predetermined type relative to the third subpixel.

### Claim 4 (depends on 1)

The image data processing apparatus according to claim 1, wherein the image data processing apparatus further comprises:
a mapping converting module, coupled to the edge detecting module, and configured to receive original image data in strip-like arrangement and convert the original image data into to-be-displayed image data in delta-like arrangement in the pixel matrix.

### Claim 5 (depends on 1)

The image data processing apparatus according to claim 1, wherein the edge detecting module employs the Sobel edge detection algorithm or the Roberts Cross edge detection algorithm to perform edge detection on the to-be-displayed image data.

### Claim 6 (depends on 1)

The image data processing apparatus according to claim 1, wherein the first subpixel is a red subpixel, the second subpixel is a green subpixel, and the third subpixel is a blue subpixel.

### Claim 7 (depends on 6)

The image data processing apparatus according to claim 6, wherein the predetermined luminance attenuation coefficient is positively correlated to a light-emitting efficiency of the first subpixel and the second subpixel and an aperture opening ratio of the first subpixel and the second subpixel.

### Claim 8 (depends on 7)

The image data processing apparatus according to claim 7, wherein the predetermined luminance attenuation coefficient is from 20% to 40%.

### Claim 9 (depends on 1)

A display device, comprising an image data processing apparatus according to claim 1.

### Claim 10

An image data processing method, applied in a pixel matrix, each pixel in the pixel matrix comprising a first subpixel and a second subpixel located in a first subpixel row and a third subpixel located in a second subpixel row, each of the first subpixel row and second subpixel row being formed by first to third subpixels aligned repeatedly;
wherein the image data processing method comprises:
step S1: receiving to-be-displayed image data in the pixel matrix, and performing edge detection on the to-be-displayed image data to acquire edge pixels located at an edge of a predetermined type;
step S2: judging whether the first and second subpixels in the edge pixels are located on an even more outer side at the edge of the predetermined type relative to the third subpixel, and selecting the first and second subpixels located on the even more outer side at the edge of the predetermined type relative to the third subpixel as to-be-adjusted subpixels;
step S3: performing luminance attenuation on the to-be-adjusted subpixels according to a predetermined luminance attenuation coefficient, to obtain to-be-transmitted image data; and
step S4: transmitting the to-be-transmitted image data to a source driver.

### Claim 11 (depends on 10)

The image data processing method according to claim 10, wherein the edge of the predetermined type is an edge parallel to an extension direction of the first and second subpixel rows.

### Claim 12 (depends on 11)

The image data processing method according to claim 11, wherein in a pixel in the mth row and the nth column in the pixel matrix, the first and second subpixels are located in the 2m−1th subpixel row, and the third subpixel is located in the 2mth subpixel row; in a pixel in the mth row and n+1th column in the pixel matrix, the first and second subpixels are located in the 2mth subpixel row, and the third subpixel is located in the 2m−1th subpixel row; and
in the step S2, it is judged, according to positions of the edge pixels in the pixel matrix and the type of the edge where the edge pixels are located, whether the first and second subpixels in the edge pixels are located at the even more outer side at the edge of the predetermined type relative to the third subpixel.

### Claim 13 (depends on 10)

The image data processing method according to claim 10, wherein prior to the step S1, the image data processing method further comprises:
step S0: receiving original image data in strip-like arrangement and converting the original image data into to-be-displayed image data in delta-like arrangement in the pixel matrix.

### Claim 14 (depends on 10)

The image data processing method according to claim 10, wherein in the step S1, the Sobel edge detection algorithm or the Roberts Cross edge detection algorithm is employed to perform edge detection on the to-be-displayed image data.

### Claim 15 (depends on 10)

The image data processing method according to claim 10, wherein the first subpixel is a red subpixel, the second subpixel is a green subpixel, and the third subpixel is a blue subpixel.

### Claim 16 (depends on 15)

The image data processing method according to claim 15, wherein the predetermined luminance attenuation coefficient is positively correlated to a light-emitting efficiency of the first subpixel and the second subpixel and an aperture opening ratio of the first subpixel and the second subpixel.

### Claim 17 (depends on 16)

The image data processing method according to claim 16, wherein the predetermined luminance attenuation coefficient is from 20% to 40%.