KR102051385B1 - Display apparatus and image processing method thereof - Google Patents

Abstract

A display device and an image processing method thereof are provided. The display device includes a display panel and a processor. The display panel has at least one arc-shape. The processor is configured to: receive position and shape information of the arc-shape of the display panel; adjust display data according to the position and shape information to generate adjusted display data and set an anti-aliasing block with a plurality of weighting values; scan the adjusted display data by the anti-aliasing block, and find at least one first weighting value and at least one second weighting value corresponding to a first gray level and a second gray level; operate an arithmetic operation by a grey level of a scanned pixel or a scanned sub-pixel with the first or second weighting value, and adjust the grey level of the scanned pixel or the scanned sub-pixel according to an operation result. The present invention can improve display quality of an image.

Description

Display device and image processing method thereof {DISPLAY APPARATUS AND IMAGE PROCESSING METHOD THEREOF}

Cross Reference to Related Application

This application is directed to US Provisional Serial No. 62 / 535,233, filed Jul. 21, 2017, Taiwan Application Serial No. 106133145, filed September 27, 2017, and Taiwan Application Serial No. 106139124, filed 11/13/2017. Claims priority benefits. The entirety of each of the above-mentioned patent applications is hereby incorporated by reference in and part of this specification.

The present invention relates to a display device and an image processing method thereof, in particular an image processing method configured to generate a display image having an arc shape.

As electronic technology has developed, electronic devices have become an important tool in people's lives. Providing advanced screen display is also an integral part of today's electronic devices.

In today's display panels, in order to render a clearer and more intense display screen, the shape of the display screen provided by the electronic device is no longer a monotonous rectangle defined. In order to make arc shaped display screens, the prior art usually makes shaded display screens by covering the display screen out of the arc shape or cutting the display panel into an arc shape using shadow stickers. However, for different customer needs, these conventional means will need to customize the design of display panel or shaded stickers. In addition, in a display screen rendered by the prior art, jagged edges are usually seen in a portion of an arc shape, which degrades display quality.

The present invention provides a display device and its image processing method, which can effectively reduce the jagged edges of the display screen.

The display device provided by the present invention includes a display panel and a processor. The display panel has at least one arc shape. The processor coupled to the display panel comprises: receiving at least one arc-shaped position and shape information of the display panel; Receive display data and adjust the display data according to the position and shape information to generate adjusted display data; Set an antialiasing block having a plurality of weights; And scan the adjusted display data according to the position and shape information by the anti-aliasing block, find at least one first weight corresponding to a first gray level among the weights, and generate a second of the weights. Finds at least one second weight corresponding to the gray level, calculates an arithmetic operation based on the at least one first weight or at least one second weight and the gray level of the scanned pixel or the scanned sub-pixel Generate and adjust the gray level of the scanned pixel or the scanned sub-pixel in accordance with a result of the operation.

An image processing method of the present invention includes: recording position and shape information of at least one arc shape of a display panel; Receiving display data and adjusting the display data according to the position and shape information to generate adjusted display data; The antialiasing block is set, the antialiasing block having a plurality of elements, each element having the weight; And scan the adjusted display data according to the position and shape information by the anti-aliasing block, find at least one first weight corresponding to a first gray level among the weights, and a second of the weights. Finds at least one second weight corresponding to the gray level, calculates an arithmetic operation based on the at least one first weight or at least one second weight and the gray level of the scanned pixel or the scanned sub-pixel Generating and adjusting the gray level of the scanned pixel or the scanned sub-pixel in accordance with a result of the operation.

Based on the above, the present invention provides an antialiasing block for scanning a display image, the arithmetic through the weights and gray levels of the scanned pixels or the scanned sub-pixels for the antialiasing block. The computation is calculated to protect the sharpness of the pixels or sub-pixels with respect to the arc-shaped display limits in the display image, thereby achieving an antialiasing effect and improving the display quality of the image.

BRIEF DESCRIPTION OF DRAWINGS To make the above-described features and advantages of the present invention more understandable, some embodiments are described in detail as follows with the accompanying drawings.

1 illustrates a flowchart of an image processing method of an exemplary embodiment of the present invention.
2 illustrates a schematic diagram of the arc-shaped shape and position of a representative embodiment of the present invention.
3 illustrates a schematic diagram of a method of adjusting display data of a representative embodiment of the present invention.
4 and 5 illustrate schematic diagrams of scanning an antialiasing block of a representative embodiment of the present invention.
6A-6E each illustrate schematic diagrams of many types of different embodiments of the antialiasing block of the present invention.
7 illustrates a schematic diagram of an anti-aliased display image of a representative embodiment of the present invention.
8 illustrates a schematic diagram of a display device of a representative embodiment of the present invention.

1 and 8, FIG. 1 illustrates a flowchart of an image processing method of a representative embodiment of the present invention, and FIG. 8 illustrates a schematic diagram of a display device of a representative embodiment of the present invention. The display device 800 includes a display panel 810, a processor 820, and a memory 830. The display panel 810 has one or a plurality of arc shapes ASA. The processor 820 is coupled to the display panel 810 and is configured to execute a plurality of steps as illustrated in FIG. 1. Memory 830 may be used to store position and shape information of arc shapes ASA and provide processor 820 for reading.

Processor 820 may be a microprocessor with any computing capability. Alternatively, processor 820 may be designed via hardware description language (HDL) or any other design method of digital circuitry familiar to those skilled in the art, wherein the hardware circuitry is a field programmable gate array. (FPGA), complex programmable logic devices (CPLDs) or application specific integrated circuits (ASICs).

The memory 830 can be any type of volatile or non-volatile memory, without limitation.

In addition, the arc shape ASA may be generated on any position of the display panel 810, and the arc shape ASA of the design occurring on the upper right side of the display panel 810 is not intended to limit the present invention only. Is an illustrative example.

Regarding the flowchart of FIG. 1, step S110 records arc-shaped position and shape information of the display panel. In an exemplary embodiment of the present invention, the amount of arc shapes ASA on the display panel 810 may be one or more, without limitation on the amount. Regarding the position of the arc shape ASA on the display panel 810, a coordinate system may be defined on the display panel, and the position of the arc shape ASA may be defined as a coordinate range of the arc shape ASA. Regarding the shape of the arc shape ASA, a bitmap can be established with pixels or sub-pixels that occur in the range of the arc shape ASA on the corresponding display panel. The shape of the arc shape (ASA) is characterized by recording the bits outside the arc shape (ASA) as a first logic level, and recording the bits in the arc shape (ASA) as a second logic level (first logic level and second). The logic levels are complementary to one another), where the display panel 810 has a plurality of pixels, each pixel consisting of a plurality of sub-pixels. A plurality of sub-pixels included in a single pixel may be used to display colors of different wavelengths, for example one pixel may comprise three sub-pixels, each of red, green and blue It can be used to produce display effects.

Of course, a representative embodiment of the present invention can also establish a bitmap directly for every pixel or sub-pixel on the display panel 810 without having to establish the coordinate system mentioned above, and through the bitmap different logic levels It is also possible to record the position and shape information of the arc shape (ASA) respectively.

In addition, the recording method of the above-mentioned bitmap is merely an illustrative example which is not intended to limit the scope of the present invention. It is well known to those skilled in the art that a method of recording the shape and position of an object via digital data can be applied to the present invention.

On the other hand, the position and shape information of the arc shape ASA can be recorded in a storage medium, for example, any type of memory 830, without limitation.

Thereafter, step S120 receives the display data, adjusts the display data according to at least one arc-shaped position and shape information, and generates adjusted display data. To illustrate in detail, in a representative embodiment of the present invention, the display boundary of the arc shape ASA can be learned according to the position and shape information of the arc shape ASA. Then, in order to generate the adjusted display data, in the display data, the corresponding pixel gray degree outside the display boundary is adjusted to, for example, the second gray scale value of the first color (eg black) gray scale value. In the display data, the pixel gradation value corresponding to the inside of the display boundary is maintained as the average first gradation value (not the first color and not black). Of course, in another exemplary embodiment of the present invention, the second gradation value is also not necessarily black gradation value, and may be set to other types of gradation values of arbitrary colors, where the second gradation value is clear with the first gray level value. It can be set to a color gray that can be easily distinguished. Of course, the sub-pixels in each pixel, for example red (R), green (G), blue (B) or other colors, may also be adjusted respectively. Using the red (R) sub-pixel as an example, in order to generate the adjusted display data, in the display data, the corresponding sub-pixel gray degree outside of the display boundary is for example a first color (e.g., ? Is adjusted to the second gradation of the gradation value, and in the display data, the sub-pixel gradation corresponding to the inside of the display boundary is the average (not first color, and? Is not red) first gradation value. Is maintained as. Referring to FIGS. 2 and 3 simultaneously, FIG. 2 illustrates a schematic diagram of the arc-shaped shape and position of a representative embodiment of the present invention, and FIG. 3 illustrates a schematic diagram of a method of adjusting display data of a representative embodiment of the present invention. . In FIG. 2, the display panel 210 has a plurality of arc shapes AS1 to AS6, wherein the arc shapes AS1 to AS4 can each be disposed on four corners of the display panel 210 and also arc shaped. The fields AS5 and AS6 may be generated on the edge of the groove 211 on the display panel 210. In an exemplary embodiment of the invention, the arc shapes AS1 to AS4 are convex arc shapes, and the arc shapes AS5 and AS6 are concave arc shapes. In a representative embodiment of the present invention, it is worth mentioning that the amount and shape of the arc shapes on the display panel 210 is not definite, and that the display panel 210 can be any type of abnormal cut display panel. .

The position and shape of the arc shapes AS1 to AS6 can be obtained from their position and shape information. In addition, as shown in FIG. 3, image data corresponding to arc shapes AS1 to AS6 may be obtained from image data according to position and shape information. In FIG. 3, the portion of the image data 301 is image data corresponding to, for example, arc shape AS1. The display boundary 310 corresponding to the boundary of the arc shape AS1 may be obtained according to the position and shape information of the arc shape AS1. In addition, the adjusted display data (such as the partially adjusted display data 302) may be, for example, through pixel gradations outside 311 of the display boundary 310, which is a second gradation of black gradations, and It can be obtained through the gradation value inside 312 of the display boundary 310 which remains the original gradation value (first gradation value). Of course, the adjusted display data (such as the partially adjusted display data 302) may also be sub-pixel systems outside the display boundary 310, for example, where? Is the second gray level of red. Through the measure and through the gradation within 312 of the display boundary 310 which remains the original average gradation (first gradation).

Referring now to Figures 4 and 5, Figures 4 and 5 illustrate schematic diagrams for scanning an antialiasing block of a representative embodiment of the present invention. Subsequent to step S120, after acquiring the adjusted display data, step S130 sets an anti-aliasing block having a plurality of elements with each element having a weight, where step S130 is at the center of the anti-aliasing block. An element of is set as the center weight, and peripheral elements of the center elements are each set as a plurality of peripheral weights. The sum of the center weights and the surrounding weights may be equal to a reference value, for example 1. Referring to FIG. 4, the antialiasing block 420 has nine elements E1 to E9, wherein elements E1 to E8 are peripheral elements and element E9 is the central element. Corresponding to anti-aliasing block 420, the weight of anti-aliasing block 420 may be set as shown in Table 1.

1/16 2/16 1/16 2/16 4/16 2/16 1/16 2/16 1/16

At this time, the weights of the elements E1 to E9 are 1/16, 2/16, 1/16, 2/16, 1/16, 2/16, 1/16, 2/16 and 4/16, respectively. .

Of course, the values of the weights in Table 1 are merely illustrative examples that are not intended to limit the scope of the invention. In a representative embodiment of the present invention, the center weight is greater than the ambient weight, and in other embodiments of the present invention, the center weight may also not be greater than the ambient weight. The values of the center weights and the surrounding weights may be appropriately adjusted according to the actual situation and the intensity of the antialiasing effect without any limitation.

In step S140, the antialiasing block 420 scans the display data 410 adjusted according to the position and shape information, wherein the scan operation fixes the central element E9 of the antialiasing block 420. One in anti-aliasing block 420 that can align with each scanned pixel or sub-pixel in display data 410 adjusted according to the sequence and direction, and corresponding to the pixel or sub-pixel grayness. Find an or a plurality of elements as a first gray level, find a first weight of one or a plurality of elements mentioned above, and in antialiasing block 420 corresponding to a pixel or sub-pixel gray level Find one or a plurality of elements of as a second gray level, find one or a plurality of elements of a second weight among the aforementioned elements, and also perform a first arithmetic operation on the first weight or the second weight Calculate, A second arithmetic operation is obtained by calculating a second arithmetic operation regarding the result of the first arithmetic operation and the grayness of the scanned pixel or sub-pixel, and the second arithmetic operation is used to obtain the second arithmetic operation. By adjusting the gradation value, an antialiasing display effect is achieved.

As shown in FIG. 5, elements E1, E2, E7 and E8 of antialiasing block 420 correspond to pixels or sub-pixels of a second gray level. It can be learned that the second weights of elements E1, E2, E7 and E8 are 1/16, 2/16, 1/16 and 2/16, respectively. In addition, elements E3 through E6 and E9 of antialiasing block 420 correspond to pixels or sub-pixels of the first gray level. It can be learned that the first weights of elements E3 through E6 and E9 are 1/16, 2/16, 1/16, 2/16 and 4/16, respectively.

In a representative embodiment of the present invention, the sum of the first weights may be calculated to obtain a first operation result equal to 1/16 + 2/16 + 1/16 + 2/16 + 4/16 = 10/16 . In addition, by adjusting the gray level (e.g., equal to 255) of the scanned pixel or sub-pixel by the first operation result (= 10/16), the adjusted gray level (= 255 × 10/16 = 159) Can be obtained.

In another exemplary embodiment of the present invention, the sum of the second weights equal to 1/16 + 2/16 + 1/16 + 2/16 = 6/16 can also be calculated and the reference value at 6/16 (= 1). ) Is obtained by obtaining a first operation result (= 1-6 / 16 = 10/16). Then, by adjusting the gray level (e.g., equal to 255) of the scanned pixel or sub-pixel by the first operation result (= 10/16), the adjusted gray level (= 255 × 10/16 = 159 ) Can be obtained.

It can be inferred from the above that the gradation value of the scanned pixel or sub-pixel can be adjusted from 255 to 159 according to the above calculation, thereby producing an antialiasing effect.

The above scan operation can be operated on fully adjusted display data, and also sets the scan area for the range corresponding to the arc shapes in the adjusted display data, and can only be operated on the set scan area.

The rectangle of the anti-aliasing block described above is 3x3, which is merely an example, with reference to FIGS. 6A-6E where FIGS. 6A-6E are each of the many types of different embodiments of the anti-aliasing block of the present invention. Schematics, where the shape of the antialiasing block can be any polygons, and their measurements also do not have their limits fixed. In an exemplary embodiment of the present invention, the measurement and shape of the antialiasing block and its weights set by the elements may be set according to the antialiasing brightness value. The antialiasing brightness value may be set by the technician without any limitation, or may also be input by the user via the input interface.

Referring to FIG. 7, FIG. 7 illustrates a schematic diagram of an anti-aliased display image of an exemplary embodiment of the present invention, wherein on the arc-shaped edge EG of the anti-aliased display image 700, its edge The jagged phenomenon is removed cleanly and effectively improves its display quality.

Based on the above, the present invention provides an antialiasing block for scanning an area of image data corresponding to an arc shape. Through the set of weights on the antialiasing block, the gradation of the scanned pixel or sub-pixel can be adjusted, thereby producing an antialiasing effect on the arc-shaped portion of the display image and improving its display quality. can do.

It will be apparent to those skilled in the art that various modifications and changes can be made to the disclosed embodiments without departing from the scope or spirit of the invention. In view of the foregoing, it is intended that the present disclosure cover the modifications and variations provided they fall within the scope of the following claims and their equivalents.

Claims (21)

As a display device,
A display panel having at least one arc shape;
A processor coupled to the display panel, the processor comprising:
Receive position and shape information of at least one arc shape of the display panel;
Receive display data and adjust the display data according to the position and shape information to generate adjusted display data;
Set an antialiasing block having a plurality of weights; And
Scan the adjusted display data according to the position and shape information by the anti-aliasing block, find at least one first weight corresponding to a first gray level among the weights, Find at least one second weight corresponding to a second gray level among the arithmetic values, and arithmetic by the at least one first weight or the at least one second weight and a third gray level of the scanned pixel or the scanned sub-pixel And generate a calculation result by operating a calculation, and adjusting the third gray level of the scanned pixel or the scanned sub-pixel in accordance with the calculation result. The display device of claim 1, wherein the second gray degree is a gray degree of a first color, and the first gray degree is not a gray degree of the first color. The system of claim 1, wherein the processor is further configured to:
Configure a display boundary of the display data according to the position and shape information;
And when adjusting the display data, the corresponding pixel or sub-pixel grayness outside the display boundary is the second grayness. The system of claim 1, wherein the processor is further configured to:
And set a central element of the antialiasing block as a center weight and set a plurality of peripheral elements of the antialiasing block as a plurality of peripheral weights. The display apparatus of claim 4, wherein a sum of the center weight and the peripheral weights is equal to a reference value. The system of claim 1, wherein the processor is further configured to:
Setting a scan area corresponding to the at least one arc shape in the adjusted display data according to the position and shape information; And
And sequentially scan the plurality of pixels or the plurality of sub-pixels in the scan area by the anti-aliasing block. The system of claim 1, wherein the processor is further configured to:
Calculate a sum of the at least one first weight; And
And calculate the product of the sum of the at least one first weight and the third gray level of the scanned pixel or the scanned sub-pixel to generate the calculation result. The system of claim 1, wherein the processor is further configured to:
Calculate a sum of the at least one second weight;
Calculate a difference between the sum of the at least one second weight and a reference value; And
And calculate the product of the difference and the third gray level of the scanned pixel or the scanned sub-pixel to generate the calculation result. The display device of claim 1, wherein the antialiasing block is a polygon having N sides, and N is a positive integer greater than three. The display apparatus of claim 1, wherein the processor is further configured to receive an antialiasing brightness value and to set the measurements and the weights of the antialiasing block according to the antialiasing brightness value. The display apparatus according to claim 1, wherein the display panel is an abnormally cut display panel. As an image processing method,
Recording at least one arc-shaped position and shape information on the display panel;
Receiving display data, adjusting the display data according to the position and shape information of the at least one arc shape, and generating adjusted display data;
Setting an anti-aliasing block having a plurality of elements, each element having a weight; And
Scan the adjusted display data according to the position and shape information by the anti-aliasing block, find at least one first weight corresponding to a first gray level of the weights, and a second gray of the weights Find an at least one second weight corresponding to the degree, and calculate an arithmetic operation based on the at least one first weight or the at least one second weight and a third gray level of the scanned pixel or the scanned sub-pixel Generating an operation result, and adjusting the third gray level of the scanned pixel or the scanned sub-pixel in accordance with the operation result. The method of claim 12, wherein the second gray degree is a gray degree of a first color, and wherein the first gray degree is not a gray degree of the first color. The method according to claim 12,
Setting a display boundary of the display data according to the position and shape information;
And when adjusting the display data, the corresponding pixel or sub-pixel grayness outside the display boundary is the second grayness. The method of claim 12, wherein setting the anti-aliasing block having the plurality of elements, each element having the weight:
Setting a central element of the antialiasing block as a center weight, and setting a plurality of peripheral elements of the antialiasing block as a plurality of peripheral weights. The method according to claim 15, wherein the antialiasing block is set, wherein the sum of the center weight and the peripheral weights is equal to a reference value. The method of claim 12, wherein the scanning of the adjusted display data according to the position and shape information by the antialiasing block comprises:
Setting a scan area corresponding to the at least one arc shape in the adjusted display data according to the position and shape information; And
Sequentially scanning a plurality of pixels or a plurality of sub-pixels in the scan area by the anti-aliasing block. The method of claim 12, wherein the arithmetic operation is calculated based on the at least one first weight or the at least one second weight and the third gray level of the scanned pixel or the scanned sub-pixel to obtain the arithmetic result. Generating, and adjusting the third gray level of the scanned pixel or the scanned sub-pixel in accordance with the operation result:
Calculating a sum of the at least one first weight; And
Calculating the product of the sum of the at least one first weight and the third gray level of the scanned pixel or the scanned sub-pixel to generate the operation result. The method of claim 12, wherein the arithmetic operation is calculated based on the at least one first weight or the at least one second weight and the third gray level of the scanned pixel or the scanned sub-pixel to obtain the arithmetic result. Generating and adjusting the third gray level of the scanned pixel or the scanned sub-pixel in accordance with the result of the operation:
Calculating a sum of the at least one second weight value;
Calculating a difference between the sum of the at least one second weight and a reference value; And
Calculating the product of the difference and the third gray level of the scanned pixel or the scanned sub-pixel to produce the calculation result. The method according to claim 12,
Receiving an antialiasing brightness value and setting the measurements and the weights of the antialiasing block according to the antialiasing brightness value. The image processing method according to claim 12, wherein the display panel is an abnormally cut display panel.

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