CN115394234A - Image display system and image processing method thereof - Google Patents

Image display system and image processing method thereof Download PDF

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Publication number
CN115394234A
CN115394234A CN202211227463.2A CN202211227463A CN115394234A CN 115394234 A CN115394234 A CN 115394234A CN 202211227463 A CN202211227463 A CN 202211227463A CN 115394234 A CN115394234 A CN 115394234A
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image
signal source
rectangular
scaling
scaled
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Inventor
林柏均
李启祯
陈宥竹
康育齐
陈威廷
黄竣晖
胡翊翔
苏峻贤
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AU Optronics Corp
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AU Optronics Corp
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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/045—Zooming at least part of an image, i.e. enlarging it or shrinking it
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0464—Positioning

Abstract

An image display system and an image processing method thereof. The image display system comprises an image processing circuit, an image distribution circuit and a plurality of display modules. The image processing circuit receives an input of a rectangular image source and scales the rectangular image source to generate a re-image source. The image distribution circuit divides the re-image signal source to generate a plurality of sub-image signals. The display modules respectively have a non-rectangular display area, and respectively drive the non-rectangular display area to display based on the corresponding one of the sub-image signals.

Description

Image display system and image processing method thereof
Technical Field
The present invention relates to a display technology, and more particularly, to an image display system and an image processing method thereof.
Background
Generally, the display panel is rectangular as a frame, which is easy to handle and cut, so the display panel is mostly rectangular. However, with the development of semiconductor technology, the display panel has been gradually developed toward a profile so that the use of the display panel can be more diversified. However, in the irregular display panel, the original data arrangement manner may cause display disorder, and thus the data arrangement manner of the irregular display panel needs to be updated.
Disclosure of Invention
The invention provides an image display system and an image processing method thereof, which rearrange the original rectangular images into the actual display area of each display module by zooming and positioning the rectangular images so as to avoid the discontinuity of the displayed images.
The image display system of the invention comprises an image processing circuit, an image distribution circuit and a plurality of display modules. The image processing circuit receives an input of a rectangular image source and scales the rectangular image source to generate a re-image source. The image distribution circuit divides the re-image signal source to generate a plurality of sub-image signals. The display modules respectively have a non-rectangular display area, and respectively drive the non-rectangular display area to display based on the corresponding one of the sub-image signals.
The image processing method of the image display system of the invention comprises the following steps. A rectangular image signal source is received by an image processing circuit of the image display system. The rectangular image source is scaled by the image processing circuit to generate a new image source. The re-image signal source is cut by an image distribution circuit of the image display system to generate a plurality of sub-image signals to be provided to a plurality of display modules of the image display system.
Based on the above, the touch display panel and the sensing method thereof according to the embodiments of the invention, after being processed by the image processing circuit, the display data of the rectangular image source is scaled and positioned to correspond to the non-rectangular display area of the display module, so that the display module can display non-rectangular but continuous images to improve the viewing quality.
In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
FIG. 1 is a system diagram of an image display system according to an embodiment of the invention.
FIG. 2 is a diagram illustrating image processing of an image display system according to an embodiment of the invention.
FIG. 3 is a diagram illustrating image processing of an image display system according to another embodiment of the present invention.
FIG. 4 is a system diagram of an image display system according to another embodiment of the present invention.
FIG. 5 is a flowchart illustrating an image processing method of an image display system according to an embodiment of the present invention.
Wherein the reference numerals are as follows:
100. 400: image display system
110. 410: image processing circuit
111: zooming block
113: positioning block
120: data search circuit
121: scaling look-up table
123: valid data and invalid data lookup table
130. 430: image distribution circuit
140 _1to 140_n, 440 _1to 440_n: display module
413: transmission block
DDP, DDPa: distribution of data points
Dx, D1 to D8: amount of invalid data
IBS: shape information
P1, P2, P1a, P2a: block
RIS: rectangular image signal source
RPIS: re-image source
SR: image scaling value
Vx, V1 to V8: effective data volume
XDb: blue data
XDg: green data
XDr: red data
XDsub1 to XDsub n: sub-image signal
S510, S520 and S530: step (ii) of
Detailed Description
Unless defined otherwise, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It will be understood that, although the terms "first," "second," "third," etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a "first element," "component," "region," "layer" or "portion" discussed below could be termed a second element, component, region, layer or portion without departing from the teachings herein.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms, including "at least one", unless the content clearly indicates otherwise. "or" means "and/or". As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, regions, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, regions integers, steps, operations, elements, components, and/or groups thereof.
FIG. 1 is a system diagram of an image display system according to a first embodiment of the present invention. Referring to fig. 1, in the present embodiment, an image display system 100 includes an image processing circuit 110, a data searching circuit 120, an image distribution circuit 130, and a plurality of display modules 140_1-140_n, where n is a derivative, and each of the display modules 140 _1-140 _nhas a non-rectangular display area, such as a circle, a triangle, a diamond, an iris, a trapezoid, a pentagon, and the like. The image processing circuit 110 is coupled between the data search circuit 120 and the image distribution circuit 130, and the image distribution circuit 130 is coupled to the plurality of display modules 140_1-140 \n.
The data search circuit 120 receives the panel information IBS associated with the display modules 140 _1to 140 _nto provide a plurality of image scaling values SR, a plurality of valid data volumes Vx, and a plurality of invalid data volumes Dx based on the panel information IBS. The image processing circuit 110 receives an input of the rectangular image signal source RIS and the image scaling value SR, the effective data amount Vx, and the invalid data amount Dx from the data search circuit 120, scales the rectangular image signal source RIS based on the image scaling value SR, and positions the scaled rectangular image signal source RIS based on the effective data amount Vx and the invalid data amount Dx, thereby generating a re-image signal source RPIS. The original image signal source RPIS is also rectangular image data, but the red data XDr, the green data XDg, and the blue data XDb included in the rectangular image signal source RIS are compressed into a partial data area of the original image signal source RPIS through calculation.
The image distribution circuit 130 divides the re-image signal source RPIS to generate a plurality of sub-image signals XDsub1 to XDsubn, which are transmitted to the display modules 140 u 1 to 140 u n, respectively (i.e. the sub-image signals XDsub1 to XDsubn are distributed to the display modules 140 u 1 to 140 u n). The display modules 140_1 to 140_ n drive the non-rectangular display areas to display based on the corresponding sub-image signals XDsub1 to XDsub n after receiving the corresponding one of the sub-image signals XDsub1 to XDsub n.
According to the above, after being processed by the image processing circuit 110, the display data (i.e. the red data XDr, the green data XDg, and the blue data XDb) of the rectangular image signal source RIS is scaled and positioned to correspond to the non-rectangular display areas of the display modules 140 _1to 140_n, so that the display modules 140 _1to 140 _ndisplay non-rectangular but continuous images to improve the viewing quality.
In the embodiment of the invention, the image processing circuit 110 includes a scaling block 111 and a positioning block 113. The scaling block 111 is coupled to the data search circuit 120, and receives the rectangular image signal source RIS and the image scaling value SR, and scales the plurality of image rows of the rectangular image signal source RIS based on the image scaling values SR to generate a scaled image signal source SRIS. The positioning block 113 is coupled to the scaling block 111 and the data searching circuit 120 to receive the scaled video source SRIS, the valid data amount Vx and the invalid data amount Dx, and position the scaled video rows of the scaled video source SRIS based on the valid data amounts Vx and the invalid data amount Dx to generate the re-video source RPIS.
In the embodiment of the present invention, the scaling block 111 scales the image rows of the rectangular image signal source RIS based on one of an equal-scale snapshot, a gaussian snapshot, a linear interpolation method, and a bilinear interpolation method. Further, the function used for the scaled snapshot includes: p (i) t )＝p(i ot ) And i ot ＝round(i t SR), where p () = pixel function, i t = target x-axis, i ot = repositioned x-axis, round () = rounding function, SR = scaling; the functions used for the Gaussian snapshot include:
Figure BDA0003879871090000051
Figure BDA0003879871090000052
and i ot ＝round(i t SR), where G (x) = gaussian kernel of size x, σ = standard deviation, μ = central axis,
Figure BDA0003879871090000053
the functions used by the linear interpolation method include:
Figure BDA0003879871090000054
i ot ＝(i t /SR)、
Figure BDA0003879871090000055
and
Figure BDA0003879871090000056
wherein floor () = function taking integer downwards, ceil () = function taking integer upwards; the bilinear interpolation method uses functions including: dy1= y '-y1, dy2= y2-y1, dx1= x' -x1, dx2= x2-x1, px1= P1+ dx (P2-P1), px2= P3+ dx (P4-P3), P '= Px1+ dy (Px 2-Px 1), where y1 to y4= the y axis of 4 adjacent pixels, x1 to x4= the x axis of 4 adjacent pixels, y' = the y axis of the target pixel, x '= the x axis of the target pixel, P1 to P4 are the pixel values of 4 adjacent pixels, and P' is the pixel value of the target pixel. In an embodiment of the present invention, the standard deviation σ may be 1, and the size x of the gaussian kernel may be 3 × 1.
In the embodiment of the invention, the positioning block 113 determines a data point distribution based on the valid data volumes Vx and the invalid data volumes Dx, and positions the scaled image rows of the scaled image source SRIS based on the data point distribution.
In the embodiment of the present invention, the data lookup circuit 120 includes a scaling lookup table 121 and a valid data and invalid data lookup table 123. The valid data and invalid data lookup table 123 receives the profile information IBS to sequentially provide the valid data amounts Vx and the invalid data amounts Dx. The scaling lookup table 121 receives the slice information IBS to provide the image scaling values SR.
FIG. 2 is a diagram illustrating image processing of an image display system according to an embodiment of the invention. Referring to fig. 1 and 2, after receiving the rectangular video signal source RIS, the scaling block 111 scales the rectangular video signal source RIS to generate a non-rectangular scaled video signal source SRIS. Then, positioningThe block 113 is based on these effective data amounts V 1 ～V 8 And the invalid data amounts D 1 ～D 8 Determining the data point distribution DDP and correspondingly filling the effective data volume V into the display data in the scaled video source SRIS 1 ～V 8 The indicated position to generate a re-image source RPIS. The original RPIS includes blocks (as indicated by P1 and P2) corresponding to the display modules 140 _u1 to 140_, and the corresponding blocks P1 and P2 include portions (as indicated by blank spaces) and portions (as indicated by oblique lines) corresponding to the non-rectangular display areas of the display modules 140 _u1 to 140 _. Finally, each of the blocks P1 and P2 is cut to form the sub-image signals XDsub 1-XDsub n required by the display modules 140_1-140_n.
FIG. 3 is a diagram illustrating image processing of an image display system according to another embodiment of the present invention. Referring to fig. 2 and fig. 3, in the present embodiment, different data point distributions DDPa are shown, that is, the effective data amount V of the data point distribution DDPa 1 ～V 5 The corresponding regions of the bands are tapered, so that the portions (as shown in the blank space) of the corresponding regions P1a and P2a corresponding to the non-rectangular display regions of the display modules 140 _1-140 _nare tapered, depending on the position of the data read by the display modules 140 _1-140 _n. And each of the display modules 140 _1to 140 _nmay include a storage device (not shown) for storing the sub image signals XDsub1 to XDsubn used.
FIG. 4 is a system diagram of an image display system according to another embodiment of the present invention. Referring to fig. 1 and 4, the image display system 200 is substantially the same as the image display system 100, except for a transmission block 413 of the image processing circuit 410, an image distribution circuit 430 and a plurality of display modules 440_1-440 _n, wherein the same or similar elements are given the same or similar reference numerals. In the embodiment, the transmission block 413 is coupled to the scaling block 111 and the data searching circuit 120 to receive the scaled video source SRIS, the valid data amount Vx and the invalid data amount Dx, output the scaled video source SRIS as the re-video source RPIS, and output the valid data amount Vx and the invalid data amount Dx to the video distribution circuit 430.
The image distribution circuit 430 also divides the re-image signal source RPIS to generate a plurality of sub-image signals XDsub1 to XDsubn, and transmits the valid data volume Vx and the invalid data volume Dx to the display modules 440_1 to 440_n. Then, the display modules 440\ u 1 to 440_ u n respectively position the plurality of scaled image rows of the corresponding sub-image signals XDsub1 to XDsub n based on the effective data amount Vx and the invalid data amount Dx, and respectively drive the non-rectangular display area to display based on the positioned sub-image signals XDsub1 to XDsub n, wherein the positioning manner can be shown in the embodiments of fig. 2 and 3, and is not described herein again.
FIG. 5 is a flowchart illustrating an image processing method of an image display system according to an embodiment of the invention. Referring to fig. 5, in the present embodiment, the image processing method includes the following steps. In step S510, a rectangular image source is received via an image processing circuit of the image display system. In step S520, the rectangular image source is scaled by the image processing circuit to generate a re-image source. In step S530, the re-image source is divided by an image distribution circuit of the image display system to generate a plurality of sub-image signals, wherein the sub-image signals are provided to a plurality of display modules of the image display system. The sequence of steps S510, S520, and S530 is for illustration, and the embodiment of the invention is not limited thereto. Moreover, the details of steps S510, S520, and S530 can be shown in the embodiments of fig. 1 to 4, and are not repeated herein.
In summary, the touch display panel and the sensing method thereof according to the embodiments of the invention, after being processed by the image processing circuit, the display data of the rectangular image source is scaled and positioned to correspond to the non-rectangular display area of the display module, so that the display module can display non-rectangular but continuous images to improve the viewing quality.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims (15)

1. An image display system, comprising:
an image processing circuit, which receives the input of a rectangular image signal source and scales the rectangular image signal source to generate a re-image signal source;
an image distribution circuit for dividing the re-image signal source to generate a plurality of sub-image signals; and
and a plurality of display modules, each having a non-rectangular display area, and each driving the non-rectangular display area to display based on a corresponding one of the sub-image signals.
2. The image display system of claim 1, wherein the image processing circuit comprises:
a scaling block, receiving the rectangular image signal source and a plurality of image scaling values, and scaling a plurality of image rows of the rectangular image signal source based on the image scaling values to generate a scaled image signal source; and
and the positioning block is used for receiving the scaling image signal source, a plurality of effective data volumes and a plurality of invalid data volumes, and positioning a plurality of scaling image rows of the scaling image signal source based on the effective data volumes and the invalid data volumes so as to generate the new image signal source.
3. The image display system of claim 2, wherein the scaling block scales the image rows of the rectangular image source based on one of an equal-scale snapshot, a gaussian snapshot, a linear interpolation, and a bi-linear interpolation.
4. The image display system of claim 2, wherein the positioning block determines a data point distribution based on the valid data amount and the invalid data amount, and positions the scaled image row of the scaled image source based on the data point distribution.
5. The image display system of claim 2, further comprising a data lookup circuit receiving a shape information associated with the display module to provide the image scaling value, the valid data amount, and the invalid data amount based on the shape information.
6. The image display system of claim 5, wherein the data lookup circuit comprises:
a lookup table of effective data and invalid data for receiving the shape information and providing the effective data volume and the invalid data volume in sequence; and
and a scaling lookup table for receiving the shape information to provide the image scaling value.
7. The image display system of claim 1, wherein the image processing circuit comprises:
a scaling block, receiving the rectangular image signal source and a plurality of image scaling values, and scaling a plurality of image rows of the rectangular image signal source based on the image scaling values to generate a scaled image signal source; and
and a transmission block for receiving the scaled video signal source, a plurality of valid data volumes and a plurality of invalid data volumes, outputting the scaled video signal source as the re-video signal source, and outputting the valid data volumes and the invalid data volumes.
8. The image display system of claim 7, wherein the display module locates a plurality of scaled image rows of the corresponding sub-image signals based on the valid data amount and the invalid data amount, respectively, and drives the non-rectangular display area to display based on the located sub-image signals, respectively.
9. An image processing method of an image display system comprises the following steps:
receiving a rectangular image signal source through an image processing circuit of the image display system;
scaling the rectangular image signal source by the image processing circuit to generate a re-image signal source;
the re-image signal source is cut by an image distribution circuit of the image display system to generate a plurality of sub-image signals to be provided to a plurality of display modules of the image display system.
10. The image processing method of claim 9 wherein generating the re-image signal source comprises:
scaling the plurality of image rows of the rectangular image signal source based on a plurality of image scaling values to generate a scaled image signal source; and
the scaled image rows of the scaled image source are positioned based on the valid data volumes and the invalid data volumes to generate the re-image source.
11. The image processing method of claim 10, wherein the image rows of the rectangular image source are scaled based on one of an equal-scale snapshot, a gaussian snapshot, a linear interpolation, and a bi-linear interpolation.
12. The image processing method of claim 10, wherein locating the scaled image row of the scaled image source based on the valid data amount and the invalid data amount comprises:
determining a data point distribution based on the effective data amount and the ineffective data amount; and
the scaled image row of the scaled image source is located based on the data point distribution.
13. The image processing method of claim 10, further comprising:
providing, via a data lookup circuit of the image display system, the image scaling value, the valid data amount, and the invalid data amount based on a shape information associated with the display module.
14. The image processing method of claim 9 wherein generating the re-image signal source comprises:
scaling the plurality of image rows of the rectangular image signal source based on a plurality of image scaling values to generate a scaled image signal source; and
outputting the scaled video source as the re-video source.
15. The image processing method of claim 14, further comprising:
positioning, by the display module, a plurality of scaled image rows of the sub-image signal based on a plurality of valid data volumes and a plurality of invalid data volumes to drive a plurality of non-rectangular display areas of the display module.
CN202211227463.2A 2022-04-21 2022-10-09 Image display system and image processing method thereof Pending CN115394234A (en)

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