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

Current driving device and method for active organic light-emitting diode

A light-emitting diode, current-driven technology, applied to instruments, static indicators, etc., can solve problems such as increased manufacturing costs and increased process complexity

Inactive Publication Date: 2008-01-30
WINTEK CORP
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] However, the above-mentioned patents must use P-type (P-Type) and N-type (N-Type) color low-temperature polysilicon thin-film transistor (C-TFT LTPS) process, the complexity of the process will be relatively increased, and the manufacturing cost will also be relatively increased.

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
  • Current driving device and method for active organic light-emitting diode
  • Current driving device and method for active organic light-emitting diode
  • Current driving device and method for active organic light-emitting diode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Relevant detailed content and technical description of the present invention, now in conjunction with accompanying drawing, explain as follows:

[0020] Please refer to FIG. 1 , which is a schematic view of the device of the present invention. As shown in the figure: the driving device proposed by the present invention is one or two adjacent sub-pixels (odd sub-pixel 10 and even sub-pixel 20), and each sub-pixel driving device includes 4 thin film transistors and 1 capacitor; 10 and even-numbered sub-pixels 20 each include a writing element T1 and T1', a switching element T2 and T2', a driving element T3 and T3', a control element T4 and T4', a storage element C and C', a The light-emitting elements 11 and 21; and the driving circuit includes the odd enabling line 101 and a power supply line 52 of the odd sub-pixel 10, the even enabling line 201 and a power supply line 52' of the even sub-pixel 20, and an odd sub-pixel 10 and even sub-pixels 20 share a data line 50 , a...

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

It is a kind of current driving apparatus and method of active organic LED. It comprises two neighboring sub-pixels (even sub-pixel and odd sub-pixel); each sub-pixel consists of a writing element, a switch element, a drive element, a control element, a storing element, and an illuminating element. The drive line consists of odd enabled line of odd sub-pixel, even enabled line of even sub-pixel, a datawire shared by odd sub-pixel and even sub-pixel, a scanning wire, a power supply cord, and a common cathode line. It can be used to improve the screen image uneven condition of active organic LED, and save the number of datawire.

Description

technical field [0001] The invention relates to a current driving device of an active organic light emitting diode display, in particular to a current programmed driving device capable of improving uneven images of an active organic light emitting diode panel. Background technique [0002] Organic light emitting displays can be divided into passive type and active type according to the driving method. The so-called active-driven organic light-emitting display uses thin film transistors and capacitors to store signals to control the brightness and gray-scale performance of the organic light-emitting display. [0003] Although the production cost and technical threshold of passive organic light-emitting displays are low, they are limited by the driving method and the resolution cannot be increased. Therefore, the size of the applied products is limited to within about 5 inches, and the products will be limited to the market with low resolution and small size. If you want to o...

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): G09G3/32G09G3/3233
Inventor 罗新台简志忠
Owner WINTEK CORP