Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for improving contrast of PDP (Plasma Display Panel)

A technology of contrast and brightness, which is applied in the field of improving PDP contrast, and can solve problems such as image instability

Inactive Publication Date: 2015-07-22
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this will cause disadvantages such as image instability

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for improving contrast of PDP (Plasma Display Panel)
  • Method for improving contrast of PDP (Plasma Display Panel)
  • Method for improving contrast of PDP (Plasma Display Panel)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Electrochromic filter film with monolithic structure

[0035] The electrochromic filter film with integral structure is a large filter film with a size sufficient to cover the entire screen at one time. The filter film is used such as image 3 In the structure shown, the change of its transmittance is controlled by an external power supply, and these external power supplies are provided by two electrodes, one is a horizontal electrode 53, which is connected to image 3 The first transparent conductive layer 32 in; the other is a vertical electrode 54, connected to image 3 The second transparent conductive layer 34 in. In the PDP driving mode, in the preparation period and the addressing period, a certain voltage is passed between the two electrodes to make the transmittance of the entire film the lowest, so as to reduce the brightness of the background light; Sex voltage, the transmittance of the entire membrane strip is the highest, which increases the transmittance...

Embodiment 2

[0037] Electrochromic filter film with array structure

[0038] The electrochromic filter film of the array structure is arranged in order to form a large filter film with a size sufficient to cover the entire screen. These filter film strips are used image 3 As shown in the structure, these small filter film blocks are arranged in an array structure (as shown in Figure 6), they share a bottom substrate, the film blocks are closely arranged, and each non-adjacent filter film block unit All have different external power supplies, and these external power supplies are provided by two electrode arrays, one is a horizontal electrode array (mark 63 in Figure 6), and the other is a vertical electrode array (mark 64 in Figure 6), so that each filter After the film block is supplied with voltage, due to the difference in image color or external light, by adjusting the external voltage, the optical properties of the filter film blocks on the screen are also different. In the PDP driv...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for improving the contrast of a PDP (Plasma Display Panel). A filter membrane with adjustable transmissivity is introduced to the outer side of a PDP screen, and in the driving mode of the PDP, at a preparation period and an addressing period, a voltage is fed between a horizontal electrode and a vertical electrode, the transmissivity of the filter membrane is the lowest, and the brightness of background light is reduced; and at a maintenance period, an opposite polarity voltage is fed, the transmissivity of the filter membrane is the highest so as to improve the transmissivity of an addressing unit to be lightened, and the strength of emergent light is improved, so that the contrast is greatly improved.

Description

technical field [0001] The present invention relates to a driving technology of a PDP screen, and provides a filter film technology with a fast and real-time adjustable transmittance through the driving technology, which can realize real-time adjustment of the transmittance of the filter film under the special driving mode of the PDP. Rate and reflectivity, thereby greatly improving the contrast of PDP. Background technique [0002] PDP is a flat-panel display that uses gas discharge to emit light. It consists of two parts: a display body and a circuit system, and the display body is a display light-emitting part. At present, the main factors restricting the further development of PDP are brightness and contrast. In order to obtain a high contrast in the bright room, a filter film is installed directly in front of the display on the PDP display. The thickness of this filter film is generally 100-500 μm, and its transmittance is generally 30-50%, which can effectively reduce...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/28G09G3/20
Inventor 陈泽祥董淼胡添勇
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA