CN113132768A

CN113132768A - Image display system and method

Info

Publication number: CN113132768A
Application number: CN201911415664.3A
Authority: CN
Inventors: 黄玺谚
Original assignee: To Mao Electronics Suzhou Co ltd
Current assignee: To Mao Electronics Suzhou Co ltd; Chroma ATE Suzhou Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-16

Abstract

The application provides an image display system, which comprises a drawing module and a data mapping module. The drawing module is used for providing original picture data, and the original picture data defines a first pixel array. The data mapping module is electrically connected with the drawing module and comprises a first storage unit and a data reading unit. The first storage unit receives data related to the first pixel array and stores the data as a plurality of first temporary storage data. The data reading unit is electrically connected with the first storage unit, is controlled by the first multitask instruction to read at least part of first temporary storage data in the first storage unit, and provides the read first temporary storage data for the first display channel.

Description

Image display system and method

Technical Field

The present invention relates to an image display system and method, and more particularly, to an image display system and method capable of simplifying a data mapping method.

Background

With the rapid development of display technologies, display devices are required to support not only higher image quality but also multiple external screens, virtual reality or augmented reality image output with high image quality. Generally, a display device uses a plurality of drawing modules in hardware, and different drawing modules are responsible for processing different display areas, and each drawing module may process only a small portion of the screen. At this time, in order to support various data mapping formats, each graphics module needs to perform a complicated operation to ensure that the combined sprite is complete. However, the data mapping format that the drawing module needs to consider is so many that the drawing module is difficult to design and has many limitations when new functions are added.

In addition, since each drawing module handles only the display area for which it is responsible, there is a possibility that an abnormality may occur at the boundary of the display area. In particular, the display abnormality problem may be more significant when a picture is shifted (scrolling) or the resolution is adjusted. Therefore, there is a need for a simpler image display system and method that not only reduces the problems caused by frame shifting, but also increases the design flexibility of the graphics module.

Disclosure of Invention

In view of the above, the present application provides an image display system, in which a graphics module provides original image data, so as to avoid different display areas in an image processed by different graphics modules and reduce the problems caused by image translation. In addition, the image display system of the application hands the work of the data mapping to the data mapping module, so that the work of the drawing module is simplified, and the design flexibility of the drawing module can be increased.

In some embodiments, the original frame data may further define a second pixel array, and the data mapping module may further include a second storage unit. The second storage unit receives data related to the second pixel array and stores the data as a plurality of second temporary storage data. The data reading unit can be electrically connected to the second storage unit, and controlled by the second multitask instruction to read at least part of the second temporary storage data in the second storage unit and provide the read second temporary storage data to the second display channel. On the other hand, the data reading unit may be further controlled by the third multitasking instruction to read out another part of the first temporary data in the first storage unit and provide the read out first temporary data to the third display channel.

The application provides an image display method, which can store original image data by a storage unit and distribute the stored temporary storage data to display channels by utilizing a multitask instruction, thereby reducing the problems generated during image translation.

The application provides an image display method, which comprises the following steps. First, providing original frame data, wherein the original frame data defines a first pixel array. Then, a first storage unit is provided, and the first storage unit receives data related to the first pixel array and stores the data as a plurality of first temporary storage data. And reading out at least part of the first temporary data in the first storage unit according to the first multitask instruction. And providing the read first temporary data to a first display channel.

In some embodiments, the original frame data may further define a second pixel array, and the image display method may further include the following steps. First, a second storage unit is provided, which receives data associated with a second pixel array and stores the data as a plurality of second temporary storage data. And reading out at least part of second temporary data in the second storage unit according to the second multitask instruction. And providing the read second temporary data to a second display channel. In addition, the image display method may further include the following steps. First, the first temporary data of another part in the first storage unit is read out according to the third multitask instruction. And providing the read first temporary data to a third display channel.

In summary, the image display system and method provided by the present application can provide original image data by only one graphics module, store the original image data, and distribute the stored temporary storage data to the display channels by using the multitask instruction, thereby reducing the problems generated during the image translation. The method can avoid different drawing modules processing different display areas in the picture and reduce the problems generated during picture translation. In addition, the image display system of the application hands the work of the data mapping to the data mapping module, so that the work of the drawing module is simplified, and the design flexibility of the drawing module can be increased.

Further details regarding other functions and embodiments of the present application are described below with reference to the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a functional block diagram of an image display system according to an embodiment of the present application;

FIG. 2A is a diagram illustrating original frame data provided by a graphics module according to an embodiment of the present disclosure;

FIG. 2B is a schematic diagram of data stored in a first storage unit and data provided to a first display channel according to an embodiment of the present application;

FIG. 2C is a diagram illustrating the generation of frame panning according to the embodiment of FIG. 2B;

FIG. 3A is a diagram illustrating original frame data provided by a graphics module according to another embodiment of the present application;

FIG. 3B is a schematic diagram of data stored in a first storage unit and data provided to a first display channel according to another embodiment of the present application;

FIG. 4A is a diagram illustrating original frame data provided by a graphics module according to yet another embodiment of the present application;

FIG. 4B is a schematic diagram of data stored in the first and second storage units and data provided to the first and second display channels according to yet another embodiment of the present application;

FIG. 4C is a schematic diagram of data stored in the first and second storage units and data provided to the first, second, third, and fourth display channels according to yet another embodiment of the present application;

FIG. 5 is a flowchart illustrating steps of an image displaying method according to an embodiment of the present disclosure.

Description of the symbols

1 image display system 10 drawing module

12 data mapping module 120 storage unit

122 storage unit 124 data reading unit

20 display channel 22 display channel

24 display channel 26 display channel

Detailed Description

The foregoing and other technical matters, features and effects of the present application will be apparent from the following detailed description of a preferred embodiment, which is to be read in connection with the accompanying drawings. Directional terms as referred to in the following examples, for example: up, down, left, right, front or rear, etc., are simply directions with reference to the drawings. Accordingly, the directional terminology used is intended to be in the nature of words of description rather than of limitation.

Referring to fig. 1, fig. 1 is a functional block diagram of an image display system according to an embodiment of the present application. As shown in fig. 1, the video display system 1 of the present embodiment can support more than one display channel (lane) and can support various data mapping modes. In order to improve the architecture of the conventional image display system, the image display system 1 of the present embodiment exemplifies a graphics module 10 and a corresponding data mapping module 12. The data mapping module 12 is electrically connected to the graphics module 10, and the data mapping module 12 may be electrically connected to more than one display channel. Here, the data mapping module 12 may include more than one storage unit, such as the storage unit 120 and the storage unit 122 illustrated in fig. 1, and the storage unit 120 and the storage unit 122 may be electrically connected to the data reading unit 124. In addition, although fig. 1 shows 4 display channels (display channel 20 to display channel 26), the number of display channels is not particularly limited in the present embodiment. Taking a common liquid crystal display as an example, the display channel may be, for example, a channel for sending data to a source driver (source driver), and this embodiment is not described again. Each component of the image display system 1 will be described below.

For convenience of description, please refer to fig. 1, fig. 2A and fig. 2B together, where fig. 2A is a schematic diagram illustrating original frame data provided by a graphics module according to an embodiment of the present application, and fig. 2B is a schematic diagram illustrating data stored in a first storage unit and data provided to a first display channel according to an embodiment of the present application. As shown in fig. 2A, the graphics module 10 may be configured to provide raw frame data, which may include data of 16 pixels, and may be numbered from 0 to 15 according to the respective pixel positions. Here, the 16 pixels are considered as a 4x4 pixel array, and the 4x4 pixel array can be defined as the first pixel array a 1. At this time, both the horizontal resolution and the vertical resolution of the original picture data may be 4. Unlike the conventional graphics module, if the user wants to convert the 4 × 4 pixel array to be output from a display channel, the graphics module 10 does not need to perform the conversion of the data mapping format in advance, but can directly store the data in each pixel of the original frame data into the storage unit 120 (the first storage unit) of the data mapping module 12 in sequence.

In one example, the storage unit 120 can be a Random Access Memory (RAM) for temporarily storing data of pixel positions 0 to 15 in the original frame data. Here, the original frame data temporarily stored in the storage unit 120 may be referred to as temporary storage data (first temporary storage data), and as shown in the upper diagram of fig. 2B, the storage unit 120 sequentially stores data corresponding to pixel positions 0 to 15 in the original frame data. Since the original frame data is converted to be output from only one display channel in the foregoing case, the data reading unit 124 is controlled by the first multiplexing command to serially read out the temporary data stored in the storage unit 120 and output to the display channel 20. The first multitasking instruction indicates that the data reading unit 124 does not need to switch the display channel, and only needs to sequentially output the temporary data stored in the storage unit 120 to the display channel 20. As shown in the bottom graph of fig. 2B, the display channel 20 can correctly receive the data of pixel positions 0 to 15 in the original picture data. In one example, the data read unit 124 may comprise a Multiplexer (MUX). It can be seen that the image display system 1 of the present embodiment can easily perform data mapping output from one display channel.

In addition, referring to fig. 2B and fig. 2C together for the frame shift situation, fig. 2C is a schematic diagram illustrating the frame shift generated according to the embodiment of fig. 2B. As in the previous example, the original frame data may include the first pixel array A1 of 4x4, and the graphics module 10 may sequentially store the data in each pixel of the original frame data into the storage unit 120 of the data mapping module 12. As shown in the upper diagram of fig. 2C, the storage unit 120 may also sequentially store data corresponding to pixel positions 0 to 15 in the original frame data. At this time, if a screen shift instruction is received, for example, the screen shifts by one pixel, the data reading unit 124 only needs to start reading from the next pixel position. For example, the data reading unit 124 can start reading data from pixel position 1, sequentially read data from pixel position 1 to pixel position 15, and then read data from pixel position 0. In other words, the data output by the data reading unit 124 to the display channel 20 can be seen from the lower diagram of fig. 2C, and the display channel 20 can receive the data of pixel position 0 after correctly receiving the data of pixel positions 1 to 15 in the original frame data, so that the frame shift can be successfully completed.

In addition, the conventional graphics modules are based on resolution of 4 or 8 pixels to reduce errors in subsequent operations when mapping data. For example, if a conventional graphics module is required to output a frame with a horizontal resolution that is not a multiple of 4, for example, the horizontal resolution is 5, the problem of image breakage or bright and dark lines often occurs during the frame shifting. Here, the present embodiment can exemplify an example of outputting original picture data to an arbitrary resolution. Referring to fig. 3A and 3B together, fig. 3A is a schematic diagram illustrating original frame data provided by a graphics module according to another embodiment of the present disclosure, and fig. 3B is a schematic diagram illustrating data stored in a first storage unit and data provided to a first display channel according to another embodiment of the present disclosure. As shown, the graphics module 10 of the present embodiment may provide the first pixel array a1 with original frame data of 4 × 2, for example, the original frame data may include data of 8 pixels, and may be numbered from 0 to 7 according to the respective pixel positions.

Unlike the conventional graphics module, the resolution of which is limited, the graphics module 10 of the present embodiment still only needs to store the original frame data into the storage unit 120 of the data mapping module 12 in sequence, as shown in the top view of fig. 3B. Then, assuming that the horizontal resolution of the frame is replaced by 5, the data reading unit 124 only needs to sequentially read the first 5 temporary data stored in the storage unit 120 and output the temporary data to the display channel 20. That is, the data reading unit 124 only outputs 5 consecutive temporary data to a corresponding display channel, and the new frame resolution can be replaced with 5, as shown in the lower diagram of fig. 3B. Accordingly, based on the architecture of the present embodiment, the video display system 1 can reset the screen to any resolution regardless of the horizontal or vertical resolution of the original video data.

Of course, the image display system 1 of the present application may also map original image data to a plurality of display channels, please refer to fig. 1, 4A and 4B together, where fig. 4A is a schematic diagram illustrating original image data provided by a graphics module according to another embodiment of the present application, and fig. 4B is a schematic diagram illustrating data stored in the first and second storage units and data provided to the first and second display channels according to another embodiment of the present application. As in the previous embodiment, the graphics module 10 may also provide raw frame data, which may include 16 pixels of data, and may be numbered from 0 to 15 according to the respective pixel positions. Unlike the previous embodiment, fig. 4A considers 16 pixels as two 4x2 pixel arrays, for example, two 4x2 pixel arrays may be defined as a first pixel array a1 and a second pixel array a2, respectively.

Then, similarly to the previous embodiment, the graphics module 10 also does not need to perform the conversion of the data mapping format in advance, but only needs to store the data in each pixel of the first pixel array a1 into the storage unit 120 (first storage unit) and store the data in each pixel of the second pixel array a2 into the storage unit 122 (second storage unit), respectively. At this time, the original frame data buffered in the storage unit 120 can be referred to as a first buffered data, and the original frame data buffered in the storage unit 122 can be referred to as a second buffered data, as shown in fig. 4B. In one example, the storage unit 120 sequentially stores data corresponding to pixel locations 0 to 7 in the original frame data, and the storage unit 122 sequentially stores data corresponding to pixel locations 8 to 15 in the original frame data. Assuming that the original frame data is converted to be outputted from two display channels, the data reading unit 124 is controlled by the first multiplexing command to serially read out the temporary data stored in the storage unit 120 and output the temporary data to the display channel 20. The data reading unit 124 is controlled by the second multitasking instruction to serially read out the temporary data stored in the storage unit 122 and output the temporary data to the display channel 22. As shown in fig. 4B, display channel 20 can correctly receive data for pixel locations 0 through 7 in the original picture data, and display channel 22 can also correctly receive data for pixel locations 8 through 15 in the original picture data. It can be seen that the image display system 1 of the present embodiment can also easily perform data mapping output from two display channels.

On the other hand, the image display system 1 of the present application may further output the temporary data stored in one storage unit to a plurality of display channels, please refer to fig. 4A and 4C together, and fig. 4C is a schematic diagram illustrating data stored in the first and second storage units and data provided to the first, second, third and fourth display channels according to another embodiment of the present application. As in the previous embodiment, fig. 4A may also view 16 pixels as two 4x2 pixel arrays, for example, two 4x2 pixel arrays may be defined as a first pixel array a1 and a second pixel array a2, respectively. Furthermore, the graphics module 10 may sequentially store the data in each pixel of the first pixel array A1 into the storage unit 120, and sequentially store the data in each pixel of the second pixel array A2 into the storage unit 122. That is, the storage unit 120 sequentially stores data corresponding to pixel positions 0 to 7 in the original picture data, and the storage unit 122 sequentially stores data corresponding to pixel positions 8 to 15 in the original picture data.

Unlike the previous embodiment, the data fetch unit 124 is controlled not only by the first and second multitasking instructions, but also by the third and fourth multitasking instructions. For example, as shown in fig. 4C, the data reading unit 124 is controlled by the first multiplexing command to serially read out part of the temporary data stored in the storage unit 120, for example, only the data at

pixel positions

0, 2, 4, and 6 in the original frame data, and output the data to the display channel 20. The data reading unit 124 can be controlled by the third multiplexing command to serially read out another part of the temporary data stored in the storage unit 120, for example, read out the data at

pixel positions

1, 3, 5, and 7 in the original frame data, and output the data to the display channel 24. In addition, the data reading unit 124 is controlled by the second multiplexing command to serially read out part of the temporary data stored in the storage unit 122, for example, only the data at

pixel positions

8, 10, 12, and 14 in the original frame data, and output the data to the display channel 22. The data reading unit 124 can be controlled by the fourth multiplexing command to serially read out the temporary data stored in another portion of the storage unit 122, for example, the data at

pixel positions

9, 11, 13, and 15 in the original frame data, and output the data to the display channel 26.

On the other hand, for explaining the image display method of the present application, please refer to fig. 1 to 5 together, and fig. 5 is a flowchart illustrating steps of the image display method according to an embodiment of the present application. As shown, first in step S50, the graphics module 10 may provide original frame data, which defines a first pixel array a 1. Next, in step S52, the storage unit 120 (first storage unit) in the data mapping module 12 may receive the data associated with the first pixel array and store the data as a plurality of first temporary data. In step S54, the data reading unit 124 may read at least a portion of the first temporary data stored in the storage unit 120 according to the first multitasking instruction. And, the data reading unit 124 may provide the read-out first temporary data to the display channel 20 (first display channel). The remaining steps of the image display method of this embodiment are fully described in the embodiments of the image display system, and are not described herein again.

The above-described embodiments and/or implementations are only illustrative of the preferred embodiments and/or implementations for implementing the technology of the present application, and are not intended to limit the implementations of the technology of the present application in any way, and those skilled in the art can make many changes or modifications to the equivalent embodiments without departing from the scope of the technology disclosed in the present application, but should still be considered as the technology or implementations substantially the same as the present application.

Claims

1. An image display system, comprising:

a drawing module for providing an original image data, the original image data defining a first pixel array; and

a data mapping module electrically connected to the drawing module, comprising:

a first storage unit, receiving data related to the first pixel array and storing the data as a plurality of first temporary storage data;

a data reading unit electrically connected to the first storage unit and controlled by a first multitask instruction to read out at least part of the first temporary storage data in the first storage unit and provide the read out first temporary storage data to a first display channel.

2. The image display system of claim 1, wherein the original frame data further defines a second pixel array, and the data mapping module further comprises:

a second storage unit, receiving data related to the second pixel array and storing the data as a plurality of second temporary storage data;

the data reading unit is further electrically connected to the second storage unit, and is controlled by a second multitask instruction to read at least part of the second temporary storage data in the second storage unit and provide the read second temporary storage data to a second display channel.

3. The system of claim 1, wherein the data reading unit is further controlled by a third multitasking instruction to read out another part of the first temporary data stored in the first storage unit and provide the read out first temporary data to a third display channel.

4. An image display method, comprising:

providing an original picture data, wherein the original picture data defines a first pixel array;

providing a first storage unit, wherein the first storage unit receives data related to the first pixel array and stores the data as a plurality of first temporary storage data;

reading out at least part of the first temporary storage data in the first storage unit according to a first multitask instruction; and

the read first temporary data are provided to a first display channel.

5. The image display method of claim 4, wherein the original frame data further defines a second pixel array, and the image display method further comprises:

providing a second storage unit, wherein the second storage unit receives data related to the second pixel array and stores the data as a plurality of second temporary storage data;

reading out at least part of the second temporary storage data in the second storage unit according to a second multitask instruction; and

the read second temporary data are provided to a second display channel.

6. The image display method of claim 4, further comprising:

reading out the first temporary storage data of the other part of the first storage unit according to a third multitask instruction; and

the read first temporary data are provided to a third display channel.