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Gamma correction method for displaying drive of field emitting display device

A display device and display driver technology, which is applied to static indicators, instruments, electrical components, etc., can solve problems such as poor reducibility, achieve the effect of increasing gray levels and improving display quality

Active Publication Date: 2009-06-10
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this way, there is a nonlinear relationship between the display brightness and the driving voltage of the field emission display device, which will make the device poor in restoring the image.

Method used

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  • Gamma correction method for displaying drive of field emitting display device
  • Gamma correction method for displaying drive of field emitting display device
  • Gamma correction method for displaying drive of field emitting display device

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Embodiment Construction

[0020] Such as figure 2 It is a flow chart for realizing the gamma correction method of the present invention. Such as image 3 It is a functional block diagram of the gamma correction implementation of the present invention, which is composed of an A / D conversion circuit, a gamma correction control circuit, a gamma correction lookup table storage unit and a drive control circuit, wherein the gamma correction control circuit includes a signal processor, a program memory and a data memory . The specific embodiment of the gamma correction method of the present invention is combined figure 2 and image 3 to describe.

[0021] After the analog image signal is converted into a digital image grayscale signal by the A / D conversion circuit, it is input to the gamma correction control circuit; the gamma correction control circuit corrects the digital image grayscale signal according to the correction relation (1); the corrected The digital image grayscale signal is output to the...

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Abstract

A gamma calibrating method of display-driving on field emission display component includes applying large bit wide quantization image signal and leading in gamma calibration treatment as well as inputting image data signal with fixed bit to drive field electronic emission display component for realizing that light brightness of display component is changed on linear mode in following with grey-level signal variation of inputted image.

Description

technical field [0001] The invention belongs to the field of display technology, in particular to field emission flat panel display driving technology. Background technique [0002] Flat panel display technology is becoming the mainstream display technology. Field emission display (Field Emission Display, referred to as FED) is one of several flat panel displays currently under research, and its working principle relies on the field electron emission phenomenon. Under the action of a strong electric field, electrons are first emitted from the surface of the cold cathode material through tunneling into the vacuum, then accelerated, and finally hit the phosphor film to cause light emission. It is characterized in that it adopts a cold cathode electron source array and adopts a cross-matrix addressing method to realize lighting of a display unit. [0003] In field emission display devices, the cold cathode electron source is the core component, and its emission current determ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/30H05B33/08H05B44/00
CPCY02B20/343Y02B20/30
Inventor 邓少芝陈振华许宁生陈军
Owner SUN YAT SEN UNIV
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