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Display data transmission method and apparatus

A technology for displaying data and transmission methods, applied in the field of communication, can solve the problems of heavy access to DRAM, low display resolution, high power consumption, etc., and achieve the effects of reducing load and power consumption, improving resolution, and reducing clock delay

Active Publication Date: 2008-08-06
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, because each read address almost crosses the ROW (row) of the DRAM, the operation of activating the row (Activate Row) is required, so the power consumption is relatively large
In summary, prior art 2 accesses DRAM with heavy load, high power consumption, and low display resolution

Method used

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  • Display data transmission method and apparatus
  • Display data transmission method and apparatus
  • Display data transmission method and apparatus

Examples

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] Figure 2.a is a schematic diagram of the structural composition of an embodiment of the display data transmission device of the present invention; in a specific implementation, the display data transmission device can be a display controller (Display Controller), and support data in RGB format storage. As shown in Figure 2.a, the display data transmission device of this embodiment includes a data acquisition unit 1, a memory 2, and a read controller 3, wherein,

[0029] The data acquisition unit 1 is used to sequentially read the display data of a plurality of sub-bands (Stripe) stored in the display memory in combination with a zigzag scanning mode in combination with a burst transmission mode (Burst); in specific implementations, the data acquisition unit...

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PUM

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Abstract

The embodiment of the present invention discloses a transmission method for display data and a device thereof; wherein the transmission method for display data comprises the following steps: orderly reading the display data of a plurality of sub-bands stored in a display memory in a manner of combination Z-scan with a burst transmission; rotatably storing the burst read display data along a row direction; reading the rotatably stored display data along a line direction and sending the read display data to an display device to display. Compared with the prior art, the transmission method and the device for display data have the advantages of being capable of reducing the load and power consumption of accessing the display memory and being capable of enhancing the resolution of display frames.

Description

technical field [0001] The invention relates to the communication field, in particular to a display data transmission method and device. Background technique [0002] At present, many mobile terminals can support two display modes of horizontal screen and vertical screen, and seamless switching between the two display modes is possible. Generally, one of them is selected as the default display mode, while the other is the non-default mode. In the default mode, the displayed image does not need to be rotated by 90 degrees / 270 degrees. In the non-default mode (horizontal or vertical screen) The rotary engine needs to rotate the image by 90 degrees / 270 degrees and send it to the liquid crystal display (LCD) for display. [0003] Image rotation display is generally divided into two categories, non-real-time rotation and real-time rotation. Non-real-time rotation means that the rotation engine (which can be implemented by software or hardware) first rotates each frame of image ...

Claims

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Application Information

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IPC IPC(8): G09G5/36G09G5/39G09G5/395
Inventor 黄骏季渊童朝伍
Owner HUAWEI TECH CO LTD