TWI729658B - Image display system and method thereof - Google Patents

Abstract

The invention discloses an image display system and a method thereof, the image display system comprises a graphic module and a data mapping module. The graphic module provides an original image data, and defines a first pixel array. The data mapping module, electrically connected with the graphic module, comprises a first memory unit and a data fetching unit. The first memory unit receives the data corresponding to the first pixel array, and stores as a plurality of first register data. The data fetching unit, electrically connected with the first memory unit, reads at least a part of the first register data and provides the read first register data to a first display channel according to a first multiplexing command.

Description

Image display system and method

The present invention relates to an image display system and method, in particular to an image display system and method that can simplify data mapping means.

With the rapid development of display technology, display devices must not only be able to correspond to higher picture quality, but also be able to support high-quality multiple sets of external monitors, virtual reality or augmented reality image output. Generally speaking, a display device uses multiple drawing modules on the hardware, and different drawing modules are responsible for processing different display areas, and each drawing module may only process a small part of the screen. At this time, in order to support various data mapping formats, each drawing module needs to undergo complex calculations to ensure that the combined sub-screen is complete. However, because there are many data mapping formats that the graphics module needs to consider, it is very difficult to design the graphics module to add new functions, and it is also subject to many restrictions.

In addition, since each drawing module only processes the display area for which it is responsible, an abnormality may occur at the boundary of the display area. Especially, when the screen is scrolling or the resolution is adjusted, the display abnormality problem may be more significant. Therefore, the industry needs a simpler image display system and method, which can not only reduce the problems caused by screen translation, but also increase the design flexibility of the drawing module.

The present invention provides an image display system in which a drawing module provides original picture data, which can avoid processing different display areas in a picture by different drawing modules and reduce problems caused by picture translation. In addition, the image display system of the present invention delegates the work of data mapping to the data mapping module, which simplifies the work of the drawing module and can also increase the design flexibility of the drawing module.

The present invention provides an image display system, which includes a drawing module and a data mapping module. The drawing module is used to provide original picture data, and the original picture data defines a first pixel array. The data mapping module is electrically connected to the drawing module and includes a first storage unit and a data reading unit. The first storage unit receives data associated with the first pixel array and stores it as a plurality of first temporary data. The data reading unit is electrically connected to the first storage unit, and is controlled by a first multiplexing instruction to read at least a part of the first temporary storage data in the first storage unit, and read the first temporary storage data Provided to the first display channel.

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 associated with the second pixel array and stores it as a plurality of second temporary data. The data reading unit can further be electrically connected to the second storage unit, and is controlled by the second multiplexing instruction to read at least part of the second temporary storage data in the second storage unit, and store the read second temporary storage The data is provided to the second display channel. On the other hand, the data reading unit can also be controlled by a third multiplexing instruction to read another part of the first temporary storage data in the first storage unit, and provide the read first temporary storage data to the third display aisle.

The present invention provides an image display method, which can store the original screen data by a storage unit, and then distribute the stored temporary storage data to the display channels by using multiple tasks, so as to reduce the problems caused by the screen translation.

The present invention provides an image display method including the following steps. First, provide original picture data, and the original picture data defines a first pixel array. Then, a first storage unit is provided, and the first storage unit receives data associated with the first pixel array and stores it as a plurality of first temporary data. In addition, at least part of the first temporary storage data in the first storage unit is read according to the first multiplexing instruction. And, providing the first temporary data that has been read out to the 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. The second storage unit receives data associated with the second pixel array and stores it as a plurality of second temporary data. Furthermore, at least part of the second temporary storage data in the second storage unit is read according to the second multiplexing instruction. And, providing the read-out second temporary storage data to the second display channel. In addition, the image display method may further include the following steps. First, read another part of the first temporary storage data in the first storage unit according to the third multiplexing instruction. And, providing the read-out first temporary data to the third display channel.

In summary, the image display system and method provided by the present invention can provide the original screen data by only one drawing module, and store the original screen data, and then use multiple tasks to distribute the stored temporary data to the display channel , So as to reduce the problems caused when the screen is shifted. In this way, different drawing modules can be avoided from processing different display areas in the screen, and problems caused by screen translation can be reduced. In addition, the image display system of the present invention delegates the work of data mapping to the data mapping module, which simplifies the work of the drawing module and can also increase the design flexibility of the drawing module.

The features, objectives and functions of the present invention will be further disclosed below. However, the following are only examples of the present invention, and should not be used to limit the scope of the present invention, that is, all equivalent changes and modifications made in accordance with the scope of the patent application of the present invention will still be the essence of the present invention. Without departing from the spirit and scope of the present invention, it should be regarded as a further implementation aspect of the present invention.

Please refer to FIG. 1. FIG. 1 is a functional block diagram of an image display system according to an embodiment of the present invention. As shown in FIG. 1, the image display system 1 exemplified in this embodiment can support more than one display channel (lane), and can support a variety of data mapping modes. In order to improve the structure of the existing image display system, the image display system 1 of this embodiment demonstrates a drawing module 10 and a corresponding data mapping module 12. The data mapping module 12 is electrically connected to the drawing module 10, and the data mapping module 12 can 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 shown 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 illustrates 4 display channels (display channel 20 to display channel 26), the number of display channels is not particularly limited in this embodiment. Taking a common liquid crystal display as an example, the display channel may be, for example, a channel used to send data to a source driver, which will not be repeated in this embodiment. The components of the image display system 1 will be described below.

For the convenience of description, please refer to FIG. 1, FIG. 2A and FIG. 2B together. FIG. 2A shows a schematic diagram of the original screen data provided by a drawing module according to an embodiment of the present invention, and FIG. 2B shows an implementation according to the present invention. For example, a schematic diagram of the data stored in the first storage unit and the data provided to the first display channel. As shown in FIG. 2A, the drawing module 10 can be used to provide original image data. The original image data can include data of 16 pixels, and can be numbered from 0 to 15 according to the respective pixel positions. Here, the 16 pixels are regarded as a 4×4 pixel array, and this 4×4 pixel array can be defined as the first pixel array A1. At this time, both the horizontal resolution and vertical resolution of the original picture data can be 4. Different from the traditional graphics module, if the user wants to convert this 4x4 pixel array to output by a display channel, the graphics module 10 does not need to perform the data mapping format conversion in advance, but can directly convert every data in the original screen data. The data in each pixel is sequentially stored in the storage unit 120 (first storage unit) in the data mapping module 12.

In one example, the storage unit 120 may be a random access memory (RAM), which is used to temporarily store data from pixel positions 0 to 15 in the original image data. Here, the original screen data temporarily stored in the storage unit 120 may be referred to as temporary storage data (first temporary storage data). As shown in the upper diagram of FIG. 2B, the storage unit 120 sequentially stores the corresponding original screen data. Data for pixel positions 0 to 15. Because in the aforementioned situation, the original screen data is converted to be output by only one display channel, the data reading unit 124 will be controlled by the first multiplexing command serial to read out the temporary data in the storage unit 120 and output it to Display channel 20. The first multiplexing instruction will instruct the data reading unit 124 not to switch the display channel, but only need to sequentially output the temporarily stored data in the storage unit 120 to the display channel 20. As shown in the lower part of FIG. 2B, the display channel 20 can correctly receive the data from pixel positions 0 to 15 in the original picture data. In one example, the data reading unit 124 may include a multiplexer (MUX). It can be seen that the image display system 1 of this embodiment can easily complete the data mapping output by one display channel.

In addition, for the situation of screen shifting, please refer to FIG. 2B and FIG. 2C together. FIG. 2C is a schematic diagram of screen shifting according to the embodiment of FIG. 2B. The same as the previous example, the original image data can include a 4x4 first pixel array A1, and the drawing module 10 can sequentially store the data in each pixel in the original image data into the data mapping module 12 Storage unit 120. 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 picture data. At this time, if an instruction to shift the screen is received, for example, the screen is shifted 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 may start to read the data at the pixel position 1, and then read the data at the pixel position 1 to 15 in sequence, and then read the data at the pixel position 0 back. In other words, the data output from the data reading unit 124 to the display channel 20 can be seen from the lower diagram of FIG. 2C. The display channel 20 can receive the data from pixel positions 1 to 15 in the original picture data correctly. To the data at pixel position 0, the screen can be shifted smoothly in this way.

In addition, the traditional drawing module uses a resolution of 4 or 8 pixels as the basis for data mapping to reduce subsequent calculation errors. For example, if a traditional graphics module is required to output a picture with a horizontal resolution that is not a multiple of 4, such as a horizontal resolution of 5, the problem of broken pictures or bright and dark lines will often occur when the picture is shifted. Here, this embodiment can demonstrate an example of outputting the original screen data to an arbitrary resolution. Please refer to FIGS. 3A and 3B together. FIG. 3A shows a schematic diagram of the original screen data provided by a drawing module according to another embodiment of the present invention, and FIG. 3B shows a first storage according to another embodiment of the present invention. A schematic diagram of the data stored in the unit and the data provided to the first display channel. As shown in the figure, the drawing module 10 of this embodiment can provide a first pixel array A1 whose original image data is 4x2. For example, the original image data can include data of 8 pixels, and can be numbered from 0 to according to the respective pixel positions. 7.

Different from the traditional graphics module whose resolution is limited, the graphics module 10 of this embodiment still only needs to store the original screen data sequentially into the storage unit 120 in the data mapping module 12, as shown in the upper diagram of FIG. 3B. Shown. Next, assuming that the horizontal resolution of the screen is to be replaced with 5, the data reading unit 124 only needs to sequentially read the first 5 temporary data in the storage unit 120 and output them to the display channel 20. In other words, the data reading unit 124 only needs to output 5 consecutive temporarily stored data to a corresponding display channel, and the new screen resolution can be replaced with 5, as shown in the lower diagram of FIG. 3B. Accordingly, based on the architecture of this embodiment, regardless of the horizontal or vertical resolution of the original image data, the image display system 1 can reset the screen to any resolution.

Of course, the image display system 1 of the present invention can also map the original image data to multiple display channels. Please refer to FIGS. 1, 4A and 4B together. FIG. 4A shows a drawing according to another embodiment of the present invention. A schematic diagram of the original screen data provided by the module. FIG. 4B is a schematic diagram showing the data stored in the first and second storage units and the data provided to the first and second display channels according to another embodiment of the present invention. Similar to the previous embodiment, the drawing module 10 can also provide original image data. The original image data can include data of 16 pixels, and can be numbered from 0 to 15 according to the respective pixel positions. Different from the previous embodiment, FIG. 4A regards 16 pixels as two 4x2 pixel arrays. For example, two 4x2 pixel arrays can be defined as a first pixel array A1 and a second pixel array A2, respectively.

Next, similar to the previous embodiment, the drawing module 10 also does not need to convert the data mapping format in advance, and only needs to store the data in each pixel in the first pixel array A1 sequentially into the storage unit 120 (the first pixel array A1). A storage unit), and the data in each pixel in the second pixel array A2 is sequentially stored in the storage unit 122 (second storage unit). At this time, the original screen data temporarily stored in the storage unit 120 may be referred to as first temporary storage data, and the original screen data temporarily stored in the storage unit 122 may be referred to as second temporary storage data, as shown in FIG. 4B . In one example, 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. Assuming that the original image data is to be converted to be output by two display channels, the data reading unit 124 reads out the temporary data in the storage unit 120 under the control of the first multiplexing command serial, and outputs it to the display channel 20. In addition, the data reading unit 124 is also controlled by the second multiplexing command to serially read out the temporary data in the storage unit 122 and output it to the display channel 22. As shown in FIG. 4B, the display channel 20 can correctly receive the data of pixel positions 0 to 7 in the original picture data, and the display channel 22 can also correctly receive the data of pixel positions 8 to 15 in the original picture data. From this, it can be seen that the image display system 1 of this embodiment also easily completes the data mapping output by the two display channels.

On the other hand, the image display system 1 of the present invention can also output the temporary storage data in one storage unit to multiple display channels. Please refer to FIGS. 4A and 4C together. FIG. 4C shows another implementation according to the present invention. For example, a schematic diagram of the data stored in the first and second storage units and the data provided to the first, second, third, and fourth display channels. Similar to the previous embodiment, 16 pixels can also be regarded as two 4x2 pixel arrays in FIG. 4A. For example, two 4x2 pixel arrays can be defined as a first pixel array A1 and a second pixel array A2, respectively. In addition, the graphics module 10 can sequentially store the data in each pixel in the first pixel array A1 into the storage unit 120, and sequentially store the data in each pixel in the second pixel array A2 in the storage unit 122. In other words, 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.

The difference from the previous embodiment is that the data reading unit 124 is not only controlled by the first multiplexing instruction and the second multiplexing instruction, but can also be controlled by the third multiplexing instruction and the fourth multiplexing instruction. For example, as shown in FIG. 4C, the data reading unit 124 reads out part of the temporary data in the storage unit 120 under the control of the first multiplexing command sequence, for example, only the pixel position in the original picture data The data of 0, 2, 4, and 6 are output to display channel 20. In addition, the data reading unit 124 can be controlled by the third multiplexing instruction serial to read another part of the temporary data in the storage unit 120, such as reading the pixel positions 1, 3, 5, and 5 in the original image data. 7 data, and output to display channel 24. In addition, the data reading unit 124 will be controlled by the second multiplexing command serial to read out part of the temporary data in the storage unit 122, for example, only read out the pixel positions 8, 10, 12, and 14 in the original picture data. Data and output to display channel 22. In addition, the data reading unit 124 can be controlled by the fourth multiplexing instruction serial to read another part of the temporary data in the storage unit 122, such as reading the pixel positions 9, 11, 13, and 13 in the original image data. 15 data, and output to display channel 26.

On the other hand, in order to explain the image display method of the present invention, please refer to FIGS. 1 to 5 together. FIG. 5 is a flowchart illustrating the steps of the image display method according to an embodiment of the present invention. As shown in the figure, first in step S50, the drawing module 10 can provide original picture data, and the original picture data defines a first pixel array A1. Then in step S52, the storage unit 120 (first storage unit) in the data mapping module 12 can receive data associated with the first pixel array and store it as a plurality of first temporary data. And in step S54, the data reading unit 124 can read at least part of the first temporary data in the storage unit 120 according to the first multiplexing instruction. And, the data reading unit 124 may provide the read first temporary data to the display channel 20 (first display channel). The remaining steps of the image display method described in this embodiment have been fully described in the foregoing embodiment of the image display system, and this embodiment will not be repeated here.

In summary, the image display system and method provided by the present invention can provide the original screen data by only one drawing module, and store the original screen data, and then use multiple tasks to distribute the stored temporary data to the display channel , So as to reduce the problems caused when the screen is shifted. In this way, different drawing modules can be avoided from processing different display areas in the screen, and problems caused by screen translation can be reduced. In addition, the image display system of the present invention delegates the work of data mapping to the data mapping module, which simplifies the work of the drawing module and can also increase the design flexibility of the drawing module.

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

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

2A is a schematic diagram showing the original screen data provided by the drawing module according to an embodiment of the present invention.

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

FIG. 2C is a schematic diagram showing the screen translation generated according to the embodiment of FIG. 2B.

FIG. 3A is a schematic diagram showing the original image data provided by the drawing module according to another embodiment of the present invention.

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

4A is a schematic diagram showing the original image data provided by the drawing module according to still another embodiment of the present invention.

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

4C is a schematic diagram showing 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 invention.

FIG. 5 is a flowchart showing the steps of an image display method according to an embodiment of the invention.

no

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

Claims (5)

An image display system comprising: a drawing module for providing an original picture data, the original picture data defining a first pixel array; and a data mapping module electrically connected to the drawing module, including: a first pixel array A storage unit receives data associated with the first pixel array and stores it as a plurality of first temporary storage data; a data reading unit is electrically connected to the first storage unit and controlled by a first multiplexer Instruct to read 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. The image display system according to claim 1, wherein the original frame data further defines a second pixel array, and the data mapping module further includes: a second storage unit for receiving data associated with the second pixel array, And stored as a plurality of second temporary storage data; wherein the data reading unit is further electrically connected to the second storage unit, and is controlled by a second multiplexing command to read at least part of the second storage unit Second temporary storage data, and provide the read-out second temporary storage data to a second display channel. The image display system according to claim 1, wherein the data reading unit is further controlled by a third multiplexing instruction to read the first temporary storage data in another part of the first storage unit, and will be The first temporary data read out are provided to a third display channel. An image display method, including: Provide an original picture data, the original picture data defines a first pixel array and a second pixel array; provide a first storage unit, the first storage unit receives the data associated with the first pixel array, and stores it as multiple First temporary storage data; read out at least a part of the first temporary storage data in the first storage unit according to a first multiplexing instruction; and provide the read first temporary storage data to A first display channel; a second storage unit is provided, and the second storage unit receives data associated with the second pixel array and stores it as a plurality of second temporary storage data; reads out the data according to a second multiplexing command At least part of the second temporary storage data in the second storage unit; and providing the read-out second temporary storage data to a second display channel. The image display method according to claim 4, further comprising: reading out the first temporary data in another part of the first storage unit according to a third multiplexing instruction; and the ones to be read out The first temporary storage data is provided to a third display channel.

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