TWI720782B - Image processing method and display and portable electronic device using the same - Google Patents

Abstract

An image processing method suitable for a display. The method includes: performing a frame boundary blurring procedure on a frame of picture data to generate a frame of processed picture data; and generating a plurality of corresponding frames according to the processed picture data of the frame The gate driving signal and a plurality of source driving voltages drive a pixel array to display a picture with blurred boundaries.

Description

Image processing method and display and portable electronic device using the same

The present invention relates to an image processing method, in particular to an image processing method suitable for display frames with two different resolution regions.

The display is a very common electronic device in daily life. Generally speaking, the monitor will display various brightness, hue and resolution on the screen through the display unit. Because some monitors are equipped with a camera lens below the screen, the pixel density must be reduced in the area of the screen above the camera lens. Achieve higher light transmittance. When there are two areas with different resolutions on the screen, due to the dependence of resolution and brightness, the boundary between the areas will become very obvious, which makes it easy for users to perceive the discontinuous relationship between the two areas. It is not conducive to the overall continuity of the content displayed on the screen. In the existing method, gamma adjustment can be performed on the high-resolution area and the low-resolution area respectively, so that the RGB hue values of the two areas are close to the blur difference, but when the resolution difference is too large, the above calculation The law will not be enough to use.

In order to solve the above problems, a novel display image processing method is urgently needed in the art.

The main purpose of the present invention is to disclose an image processing method suitable for displays with two different resolution regions, which can reduce the difference between the resolution regions and improve the overall continuity of the display screen.

To achieve the above objective, an image processing method is proposed, which is suitable for a display, and the method includes:

Perform a frame boundary blurring process on a frame of picture data to generate a frame of processed picture data; and

Generate a plurality of gate driving signals and a plurality of source driving voltages corresponding to the frame data processed to drive a pixel array to display a picture with blurred boundaries;

Among them, the picture boundary blurring procedure includes:

Defining a first resolution area and a second resolution area in the frame data, and the resolution of the first resolution area is higher than the resolution of the second resolution area;

Perform a resolution gradual decrease processing procedure on the first resolution area to form a first resolution distribution in the first resolution area, and perform a resolution gradual increase processing procedure on the second resolution area to A second resolution distribution is formed in the second resolution area, wherein the first resolution distribution is minimized at the junction of the first resolution area and the second resolution area, and the second resolution distribution is The junction of the first resolution area and the second resolution area is increased to the highest; and

A brightness reduction process is performed on the first resolution area to blur the boundary of the first resolution area.

In one embodiment, the brightness decay processing program sets the brightness distribution in the first resolution region at a fixed declining rate of change.

In one embodiment, the image processing method further includes:

Randomly insert low-luminance pixels on both sides of the junction of the first resolution area and the second resolution area to achieve the effect of blurring the boundary.

In order to achieve the above objective, the present invention further provides a display which has a control unit, a drive unit and a pixel array, and which performs an image processing method to make the pixel array present a picture with blurred boundaries, wherein, The method includes: using the control unit to execute a picture boundary blurring procedure to generate a frame of processed picture data according to a frame of picture data; and using the driving unit to generate a plurality of corresponding gates according to the frame of the processed picture data A driving signal and a plurality of source driving voltages are used to drive the pixel array to display the border blurred picture, wherein the picture border blurring procedure includes:

Defining a first resolution area and a second resolution area in the frame data, and the resolution of the first resolution area is higher than the resolution of the second resolution area;

Perform a resolution gradual decrease processing procedure on the first resolution area to form a first resolution distribution in the first resolution area, and perform a resolution gradual increase processing procedure on the second resolution area to A second resolution distribution is formed in the second resolution area, wherein the first resolution distribution is minimized at the junction of the first resolution area and the second resolution area, and the second resolution distribution is The junction of the first resolution area and the second resolution area is increased to the highest; and

A brightness reduction process is performed on the first resolution area to blur the boundary of the first resolution area.

In one embodiment, the brightness decay processing program sets the brightness distribution in the first resolution region at a fixed declining rate of change.

In an embodiment, the image boundary blurring procedure further includes:

Randomly insert low-luminance pixels on both sides of the junction of the first resolution area and the second resolution area to achieve the effect of blurring the boundary.

In possible embodiments, the display may be a liquid crystal display, an organic light emitting diode display, a micro light emitting diode display, or a quantum dot light emitting diode display.

To achieve the above objective, the present invention further provides a portable electronic device having a central processing unit and the aforementioned display, wherein the central processing unit is used to communicate with the control unit.

In possible embodiments, the portable electronic device may be a smart phone, a notebook computer, a tablet computer or a personal digital assistant.

In order to enable your reviewer to further understand the structure, features and purpose of the present invention, the drawings and detailed descriptions of the preferred embodiments are attached as follows.

Please refer to FIGS. 1 and 2, which illustrate a flowchart of an embodiment of an image processing method of the present invention applied to a display and a block diagram of an embodiment of the display. The method is applied to a display 100. 100 can be a liquid crystal display, an organic light emitting diode display, a micro light emitting diode display, or a quantum dot light emitting diode display, and it has a control unit 110, a driving unit 120, and a pixel array 130, wherein the method Including: using the control unit 110 to execute a picture boundary blurring process to generate a frame of processed picture data D _{IMGOUT according to a frame of picture data D IMG} (step a1); and using the drive unit 120 to process the picture data D according to the frame _IMGOUT generated corresponding to the m gate drive signal V _G [1: m] and the n source drive voltage V _a [1: n], to drive the pixel array 130 displays blur of a boundary of pictures, m, n are Is an integer greater than 1 (step b1).

Please refer to FIG. 3, which shows a flowchart of an embodiment of the image boundary blurring procedure of the image processing method of FIG. 1. As shown in FIG. 3, the image boundary blurring process includes: _{defining a first resolution area and a second resolution area in the frame image data D IMG} , wherein the resolution of the first resolution area is higher than the resolution of the first resolution area. The resolution of the second resolution area (step a2); perform a resolution reduction processing procedure on the first resolution area to form a first resolution distribution in the first resolution area, and the second resolution The resolution area performs a resolution increasing processing procedure to form a second resolution distribution in the second resolution area, wherein the first resolution distribution is at the junction of the first resolution area and the second resolution area And the second resolution distribution rises to the highest at the junction of the first resolution area and the second resolution area (step b2); and performing a brightness reduction process on the first resolution area The procedure is to blur the boundary of the first resolution area (step c2).

Please refer to FIG. 4, which illustrates a resolution distribution formed in the low-resolution area after the image boundary blurring process of FIG. 3 performs a resolution increasing process on a low-resolution area. As shown in FIG. 4, the resolution of a low-resolution area 12 becomes higher in a boundary area 12a, and accordingly, the low-resolution area 12 can have no resolution at the junction with a high-resolution area adjacent to it. Discontinuity occurs. For example, assuming that the resolution of the low-resolution area and the high-resolution area are 4000ppi and 12000ppi, respectively, the picture boundary blurring procedure in Figure 3 can gradually increase the resolution of the boundary area of the low-resolution area from 4000ppi to 12000ppi. To enhance the continuous display effect of the screen.

Please refer to FIG. 5, which illustrates that the brightness decay processing procedure used in the picture boundary blurring procedure of FIG. 3 forms a brightness decay curve distribution in the high-resolution area. As shown in FIG. 4, the brightness of a high-resolution region decreases linearly toward a low-resolution region, and the brightness of the low-resolution region is consistent with the brightness of the low-resolution region at the junction of the high-resolution region and the low-resolution region.

In addition, the image boundary blurring procedure includes the possibility of randomly inserting low-brightness pixels on both sides of the junction of the high-resolution area and the low-resolution area to achieve the effect of blurring the boundary.

Based on the above description, the present invention further provides a portable electronic device. Please refer to FIG. 6, which shows a block diagram of an embodiment of the portable electronic device of the present invention. As shown in FIG. 6, a portable electronic device 200 has a central processing unit 210 and a display 220. The display 220 is implemented by the display 100 in FIG. Unit 110 communicates.

In addition, in possible embodiments, the portable electronic device 200 may be a smart phone, a notebook computer, a tablet computer, or a personal digital assistant.

The disclosure in this case is a preferred embodiment, and any partial changes or modifications that are derived from the technical ideas of the case and can be easily inferred by those who are familiar with the art will not deviate from the scope of the patent right of the case.

In summary, regardless of the purpose, means and effects of this case, it is shown that it is very different from the conventional technology, and its first invention is suitable for practicality, and it does meet the patent requirements of the invention. I implore the examiner to observe it and grant the patent as soon as possible. Society is for the best prayer.

Step a1: Utilize the control unit to execute a picture boundary blurring process to generate a frame of processed picture data based on one frame of picture data. Step b1: Utilize the drive unit to generate corresponding m gate drive signals based on the processed picture data of the frame V _G [1: m] and n source driving voltages V _a [1: n] to drive the pixel array to display a picture with blurred boundaries, m and n are integers greater than 1. Step a2: In the frame A first resolution area and a second resolution area are defined in the picture data, wherein the resolution of the first resolution area is higher than the resolution of the second resolution area, and the first resolution area is reduced in brightness The processing procedure is to blur the boundary of the first resolution area. Step b2: Perform a resolution reduction processing procedure on the first resolution area to form a first resolution distribution in the first resolution area, and The second resolution area performs a resolution increasing processing procedure to form a second resolution distribution in the second resolution area, wherein the first resolution is distributed in the first resolution area and the second resolution The junction of the regions is reduced to the lowest, and the second resolution distribution rises to the highest at the junction of the first resolution region and the second resolution region. Step c2: Perform a brightness reduction process on the first resolution region The program blurs the boundary of the first resolution area 12: low-resolution area 12a: boundary area 100: display 110: control unit 120: driving unit 130: pixel array 200: portable electronic device 210: central processing unit 220: monitor

FIG. 1 shows a flowchart of an embodiment of an image processing method suitable for a display according to the present invention. FIG. 2 is a block diagram of an embodiment of a display to which the image processing method of FIG. 1 is applied. FIG. 3 is a flowchart of an embodiment of the image boundary blurring procedure of the image processing method of FIG. 1. FIG. FIG. 4 shows a resolution distribution formed in the low-resolution area after the image boundary blurring process of FIG. 3 performs a resolution increasing process on a low-resolution area. FIG. 5 shows that the brightness reduction process used in the image boundary blurring process of FIG. 3 forms a brightness reduction curve distribution in the high-resolution area. FIG. 6 is a block diagram of an embodiment of the portable electronic device of the present invention.

Step a2: Define a first resolution area and a second resolution area in the frame data, wherein the resolution of the first resolution area is higher than the resolution of the second resolution area for the first resolution Perform a brightness reduction process for the first resolution area to blur the boundary of the first resolution area

Step b2: Perform a resolution gradual decrease processing procedure on the first resolution area to form a first resolution distribution in the first resolution area, and perform a resolution gradual increase processing procedure on the second resolution area To form a second resolution distribution in the second resolution area, wherein the first resolution distribution is minimized at the junction of the first resolution area and the second resolution area, and the second resolution The degree distribution rises to the highest at the junction of the first resolution area and the second resolution area

Step c2: Perform a brightness reduction process on the first resolution area to blur the boundary of the first resolution area

Claims (7)

An image processing method suitable for a display. The method includes: performing a frame boundary blurring procedure on a frame of picture data to generate a frame of processed picture data; and generating a plurality of corresponding frames according to the processed picture data of the frame The gate driving signal and a plurality of source driving voltages are used to drive a pixel array to display a border blurred picture; wherein the picture border blurring process includes: defining a first resolution area and a first resolution area in the frame picture data A second resolution area, and the resolution of the first resolution area is higher than the resolution of the second resolution area; performing a resolution reduction process on the first resolution area in the frame image data to A first resolution distribution is formed in the first resolution area, and a resolution increasing process is performed on the second resolution area in the frame image data to form a second resolution area in the second resolution area Resolution distribution, wherein the first resolution distribution is minimized at the junction of the first resolution area and the second resolution area, and the second resolution is distributed in the first resolution area and the second resolution area The junction of the resolution area is increased to the highest; the first resolution area in the frame image data is subjected to a brightness reduction process to blur the boundary of the first resolution area; and the frame image data is in the boundary of the first resolution area. Low-brightness pixels are randomly inserted on both sides of the junction of the first resolution area and the second resolution area to achieve the effect of blurring the boundary. According to the image processing method described in the first item of the scope of patent application, the brightness decay processing procedure is to set the brightness distribution in the first resolution area at a fixed decreasing rate of change. A display has a control unit, a drive unit, and a pixel array, and the pixel array presents a border blurred picture by executing an image processing method, wherein the method includes: using the control unit to execute A screen boundary blurring process to generate a frame of processed image data based on one frame of image data; and the use of the drive unit to generate corresponding gate drive signals and multiple source drive voltages based on the processed image data of the frame , To drive the pixel array to display the border blurred picture, wherein the picture border blurring procedure includes: A first resolution area and a second resolution area are defined in the frame data, and the resolution of the first resolution area is higher than the resolution of the second resolution area; Perform a resolution reduction process on the first resolution area to form a first resolution distribution in the first resolution area, and perform a resolution gradually increase on the second resolution area in the frame image data The processing procedure is to form a second resolution distribution in the second resolution area, wherein the first resolution distribution is minimized at the junction of the first resolution area and the second resolution area, and the second resolution area The second resolution distribution rises to the highest at the junction of the first resolution area and the second resolution area; a brightness reduction process is performed on the first resolution area in the frame image data to blur the first resolution area The boundary of the resolution area; and randomly insert low-luminance pixels on both sides of the junction of the first resolution area and the second resolution area in the frame data to achieve the effect of blurring the boundary. According to the display described in item 3 of the scope of patent application, the brightness decay processing program is to set the brightness distribution in the first resolution area with a fixed declining rate of change. The display described in item 3 of the scope of patent application is a display selected from the group consisting of a liquid crystal display, an organic light emitting diode display, a micro light emitting diode display, and a quantum dot light emitting diode display. A portable electronic device, which has a central processing unit and the display as described in any one of items 3 to 5 of the scope of patent application, wherein the central processing unit is used for communicating with the control unit. The portable electronic device described in item 6 of the scope of patent application is an electronic device selected by the group consisting of a smart phone, a notebook computer, a tablet computer, and a personal digital assistant.

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