Method for improving image quality of color plasma display panel

A technology of plasma display and image quality, applied in static indicators, cathode ray tube indicators, instruments, etc., can solve the problem of inconsistency between image gray level and display, and achieve the effect of improving display quality and reducing distortion.

CN1801291AInactive Publication Date: 2006-07-12四川世纪双虹显示器件份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2006-07-12
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for improving image quality of colorful plasma display screen which comprises: measuring display screen brightness and recording the error between real gray grade and theoretical gray grade in an error look-up device; inputting interface original data to an accumulator, adding the error outputted from look-up device and sending data to a round-off device; getting integer part of data and sending it to a controller and the look-up device for data processing in the controller and being as corresponding error in address look-up table; sending the error to the accumulator for being calculated with next field data; getting the decimal error part after rounded and sending the error to the accumulator for being added with the error data of next field data and look-up device; when accumulating eight fields error data, resetting all error data and performing next cycle field error accumulation.
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Description

technical field

[0001] The invention relates to a method for improving the image quality of a display screen, in particular to a method for improving the image quality of a color plasma display screen. Background technique

[0002] The principle of AC color plasma display (AC PDP) display is to use multi-sub-field technology to achieve multi-gray levels, and divide a frame of image into multiple sub-fields to achieve. Different sub-fields have different weights, and sub-fields with different weights Corresponding to different brightness weights, the multi-level grayscale display of images can be realized by combining subfields with different weights. In this way, the gray value of the input signal has a linear relationship with the brightness of the displayed image (see figure 1 ), the brightness of the AC color plasma display (AC PDP) display image is realized by sustaining pulses, but in fact, the characteristic relationship between the display screen and the line driver ...

Examples

specific Embodiment

[0013] Such as image 3 As shown, a method for improving the image quality of a color plasma display is to calculate the error of each gray level and store it in a table of the error finder 200, and keep the error of each field to the next field when the image is displayed , adding and rounding to the data of the next field for display, and recursing the error of this field to the next field. The error recursion takes eight fields as a cycle, and then clears the previous error and recalculates at the eighth field , so that due to the characteristics of the human eye, the image seen is a comprehensive effect, which can better reduce the distortion of the gray level of the image. Concrete embodiment comprises the following steps:

[0014] a) First, measure the display brightness of the display screen, record the error between the actual gray level and the theoretical gray level, calculate the error of each gray level and store it in the error finder 200; in the finder 200 is a ...