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

Voltage drop compensation method and device for AMOLED display module

A display module and voltage drop compensation technology, applied in static indicators, instruments, etc., can solve the problems of being unable to apply to mass-produced products, time-consuming and labor-intensive, and differences in display characteristics, and achieve the effect of improving brightness uniformity

Active Publication Date: 2021-03-26
HEFEI VISIONOX TECH CO LTD
View PDF9 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the production process of AMOLED display devices, the display characteristics of individual products are different. The current conventional IR-Drop compensation scheme is adjusted individually for each AMOLED display module, which is time-consuming and laborious, and cannot be applied. for mass production

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
  • Voltage drop compensation method and device for AMOLED display module
  • Voltage drop compensation method and device for AMOLED display module
  • Voltage drop compensation method and device for AMOLED display module

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0048]The features and exemplary embodiments of the various aspects of the present invention will be described in detail below, in order to make the objects, technical solutions and advantages of the present invention, the invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. It will be appreciated that the specific embodiments described herein are intended to be in an explanation of the invention. For those skilled in the art, the present invention can be carried out without some details in these specific details. The description of the embodiments is merely a better understanding of the present invention is provided by way of example to illustrate the examples of the present invention.

[0049] It should be noted that in this article, a relationship term such as the first and second, etc. is only used to separate an entity or operation with another entity or an operational area, without having to require or impl...

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 embodiment of the invention provides a voltage drop compensation method and device for an AMOLED display module, and the method comprises the steps: constructing the characteristic groups of a sample display module and a voltage drop compensation scheme corresponding to each characteristic group according to the characteristic representation value of a thin film transistor; acquiring the characteristic representation value of a to-be-compensated display module; determining a characteristic group to which the to-be-compensated display module belongs according to the characteristic representation value of the to-be-compensated display module; and selecting a pressure drop compensation scheme corresponding to the characteristic group as a pressure drop compensation scheme of the to-be-compensated display module according to the characteristic group to which the to-be-compensated display module belongs. According to the embodiment of the invention, the voltage drop compensation methodand device for the AMOLED display module can correspond to to-be-compensated display modules with various characteristics, do not need to debug a voltage drop scheme for each to-be-compensated displaymodule independently, and are time-saving and efficient.

Description

Technical field [0001] The present invention belongs to the field of display panel, and more particularly to a pressure drop compensation method and apparatus for an AMOLD display module. Background technique [0002] AMOLED (ACTIVE MATRIX Organic Light-Emitting Diode) The display device is a display device displayed in a current drive, all sub-pixel supplies voltage supplies, due to the factors such as drive circuit layout and VDD line impedance, When the product is normally displayed, the brightness of pixels in different positions is inconsistent (the overall display is poor in the brightness). Therefore, the theoretical current of different position sub-pixels is different from the actual current, and the brightness of the pixels between different positions is inconsistent (the overall display brightness is poor), which is IR DROP. The pressure drop (IR-DROP) compensation function can compensate for the difference in brightness between different locations, and improve the ove...

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
IPC IPC(8): G09G3/3225G09G3/3258
CPCG09G3/3225G09G3/3258G09G2320/0276
Inventor 李文兴葛明伟李永岗
Owner HEFEI VISIONOX TECH CO LTD