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Device and method for amplifying image translation display

A technology for magnifying images and images, applied in the field of digital display terminals, can solve problems such as slow speed, and achieve the effect of reduced read and write volume, low cost, and high performance

Inactive Publication Date: 2012-10-03
ARKMICRO TECH
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  • Summary
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Problems solved by technology

The above two methods all involve the reading and writing of a large amount of data, and need to compete with other devices in the system for SDRAM bandwidth, so the speed will be much slower than simply modifying the base address pointer of the LCD controller to read data, and through the software and hardware acceleration module The method also requires additional storage space for storing

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  • Device and method for amplifying image translation display
  • Device and method for amplifying image translation display
  • Device and method for amplifying image translation display

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Embodiment Construction

[0031] Below in conjunction with the accompanying drawings, the specific embodiments of the present invention will be described in detail.

[0032] Such as figure 1 As shown, in order to realize the display of pictures, the existing digital display terminal main control chip includes not only CPU, but also image decoder, SDRAM controller, LCD display control, and image scaler module. Under this architecture, after the image decoder is decoded, to realize the movement of the enlarged image, the CPU first needs to take out the area to be enlarged from the SDRAM through the SDRAM controller, and then enlarge the extracted image area to the size of the display screen through the image scaler, and finally Sent to the LCD controller for LCD display. This process is inefficient because it involves a lot of data movement such as data extraction and full screen data refresh.

[0033] Such as figure 2Shown is a schematic structural diagram of an enlarged image translation display de...

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Abstract

The invention discloses a device and a method for amplifying image translation display. The device comprises a CPU, an LCD controller, an SDRAM controller, a band source destination windowing image scaler, an image scaler, an SDRAM and an LCD display screen. The invention also discloses the method for amplifying the image translation display, which comprises the following steps that: the CPU setsa source windowing address generator and a destination windowing address generator, starts the image scaler to implement scaling processing of images, writes the processed data into the SDRAM, and finally displays the data through an LCD display. The device and the method greatly reduce the read-write quantity of the data, save the bandwidth of the SDRAM, improve the display speed, and implement horizontal smooth movement of the amplified images, thereby achieving higher performance with lower cost.

Description

technical field [0001] The invention relates to a digital display terminal, in particular to a device and method for realizing horizontal movement of a digital image. Background technique [0002] Since the digital display terminal has many advantages that the analog display terminal does not have, it is popular in more and more application fields. For example, digital images used in digital display terminals can be processed with special effects such as zooming in, zooming out, and image enhancement before being output for display. However, for the horizontal movement displayed by the enlarged image, in products currently on the market such as digital photo frames, it can be found that when moving the enlarged image, the movement in the horizontal direction will obviously feel frustrated and not as smooth as the vertical movement. [0003] One of the most important issues to be faced in digital display terminal products is the SDRAM capacity, because the current data sourc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36
Inventor 彭亮金善子郑涛吴焯焰石岭
Owner ARKMICRO TECH
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