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Grayscale modulation method of field emission flat panel display

A flat-panel display and gray-scale modulation technology, applied to static indicators, instruments, etc., can solve the problems of difficult hardware implementation and many driving signals, and achieve the effect of improving gray-scale display accuracy and simple driving circuit

Inactive Publication Date: 2013-04-03
ZHONGSHAN FLASHLIGHT POLYTECHNIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This grayscale display method requires more driving signals to achieve high-level display accuracy, so it is difficult to implement on hardware

Method used

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  • Grayscale modulation method of field emission flat panel display
  • Grayscale modulation method of field emission flat panel display

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Experimental program
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Embodiment Construction

[0016] The present invention is described in further detail below:

[0017] The following table shows the gray levels corresponding to the 4-level driving signals in each subfield:

[0018]

[0019] The data signal is displayed in 6-bit grayscale, a display period T is divided into 3 sub-fields, and the driving signal is set to 4 levels to achieve 4 3 =64-level grayscale display example, to illustrate the grayscale display control method of the field emission flat panel display of the present invention.

[0020] The first step is to set the size of the display drive signal to 4-level V 0 , V 1 , V 2 , V 3 , where V 0 =0. Let the luminance generated by them applied to the pixel be L respectively 0 , L 1 , L 2 , L 3 , to adjust V 1 , V 2 , V 3 size such that L 0 :L 1 :L 2 :L 3 = 0:1:2:3.

[0021] The second step is to divide the unit display period of one field into three subfields, and the corresponding display period of each subfield is weighted F 0 , F ...

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Abstract

The invention discloses a grayscale display control method of a field emission flat panel display. The method includes: dividing driving signals into a plurality of levels with the amplitude fixed; dividing a field of display period into a plurality of sub-fields, wherein display periods in the sub-fields are different in weight; in the display period of each subfield, selecting one of the driving signals to be applied to a pixel unit to be displayed; and combining brightness of the sub-fields to achieve grayscale display of the field emission flat panel display. The method is simple in needed drive circuit and free of a complicated amplitude amplifying circuit, can solve the problem that the display cannot respond to narrow pulses and has unique advantages in grayscale display.

Description

[technical field] [0001] The invention belongs to the technical field of image display, and in particular relates to a gray scale modulation method of a field emission flat panel display. [Background technique] [0002] Field emission display is a new type of flat-panel display under research, and grayscale display technology is one of the key technologies to realize image display. There are three types of grayscale modulation methods commonly used in flat panel displays: amplitude grayscale modulation, spatial grayscale modulation and time grayscale modulation. The amplitude modulation method realizes the gray scale display by changing the amplitude of the driving signal. This gray scale modulation method involves a complex driving circuit, and it is difficult to achieve accurate gray scale display due to the nonlinearity of the circuit. The spatial grayscale modulation method obtains the grayscale effect by controlling the number of light-emitting points of the pixel unit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
Inventor 陈振华熊宇彭建宇左红英
Owner ZHONGSHAN FLASHLIGHT POLYTECHNIC