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Display system and display device driver

A display device and display system technology, applied to static indicators, image reproducers using solid-state color display devices, instruments, etc., to achieve the effect of image quality improvement and power reduction

Active Publication Date: 2012-03-21
SYNAPTICS JAPAN GK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, according to the investigation of the inventors, there is room for improvement in the above-mentioned technology in terms of achieving both reduction in power required to transmit image data and improvement in image quality of images displayed on a display device.

Method used

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  • Display system and display device driver

Examples

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no. 1 example

[0059] figure 1 is a block diagram showing an exemplary configuration of the display system according to the first embodiment of the present invention. In this embodiment, the present invention is applied to a display system including a liquid crystal display device 1 . The liquid crystal display device 1 includes a timing controller 2 , a driver 3 and a liquid crystal display panel 4 . Pixels, data lines (signal lines) and gate lines (scanning lines) are arranged in a display area 4 a of the liquid crystal display panel 4 . Each pixel includes an R sub-pixel (a sub-pixel for displaying red), a G sub-pixel (a sub-pixel for displaying green), and a B sub-pixel (a sub-pixel for displaying blue), and the associated data Each sub-pixel is provided at the intersection of the line and the gate line. In the following, pixels associated with the same gate line are referred to as pixel lines. The data lines of the liquid crystal display panel 4 are driven by a driver 3 , and the ga...

no. 2 example

[0106] Figure 7 is a block diagram showing an exemplary configuration of a liquid crystal display device 1 according to a second embodiment of the present invention. The liquid crystal display device 1 of the second embodiment is similar in construction to the liquid crystal display device 1 of the first embodiment. The difference is as follows: In the first embodiment, (4×1) pixel compression is performed in the compression circuit 5 a, and FRC processing is performed in the FRC circuit 12 of the driver 3 . On the other hand, in the second embodiment, an appropriate compression method is selected in the compression circuit 5a according to the content of the image data 21, and FRC is further selected from the compression circuit 5a and the FRC circuit 12 of the driver 3 according to the selection of the compression method. The processed entity. This makes it possible to further improve the image quality of a displayed image.

[0107] Specifically, performing FRC processing...

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Abstract

The invention provides a display system and a display device driver. The display system includes: a display device, a transmitting device which generates compressed data by performing a compression process on image data corresponding to a display image, and a driver which drives the display device in response to the compressed data received from the transmitting device. The driver includes: a decompression circuit which generates decompressed data by decompressing the compressed data, an FRC circuit configured to perform an FEC process on the decompressed data to generate display data and a drive circuit which drives the display device in response to the display data. The following relation holds: m2>m3>m1, where m1 is a number of bits of the compressed data per pixel, m2 is a number of bits of the decompressed data per pixel and m3 is a number of bits of the display data per pixel.

Description

technical field [0001] The present invention relates to a display system and a display device driver, and more particularly, to a technique for transferring data to a display device driver. Background technique [0002] One requirement for a display device such as a liquid crystal display device is multi-grayscale display, and the display device (eg, a liquid crystal display panel) itself may not be suitable for the required multi-grayscale display. For example, there is an allocation of 8 bits to each of red (R), green (G) and blue (B) in the raw image data, and the display device may be adapted to assign 8 bits to each of red (R), green (G) and blue (B). A case where 6-bit image data is allocated for each color (B). [0003] One method for dealing with such a mismatch is to perform a color reduction process. The problem of the mismatch of the number of gray levels between the image data and the display device can be solved by: Each color (B) is allocated 8 bits) to perf...

Claims

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Application Information

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IPC IPC(8): G09G3/36
CPCH04N9/30G09G2340/02G09G3/20G09G3/36G09G3/3688G09G3/2066G09G2370/08
Inventor 降旗弘史能势崇
Owner SYNAPTICS JAPAN GK