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Organic luminous display panel and its voltage drive organic light emitting pixel

A voltage-driven, organic technology, applied in the field of organic light-emitting display panels, can solve problems such as uneven screen display

Active Publication Date: 2012-01-11
INNOLUX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another object of the present invention is to provide an organic light-emitting pixel display panel, which can improve the defect of uneven picture display caused by the power drop (IR drop) on the panel.

Method used

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  • Organic luminous display panel and its voltage drive organic light emitting pixel
  • Organic luminous display panel and its voltage drive organic light emitting pixel
  • Organic luminous display panel and its voltage drive organic light emitting pixel

Examples

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Embodiment Construction

[0052] Please refer to the following Figure 3A , which is a circuit block diagram of a voltage-driven organic light-emitting pixel according to an embodiment of the present invention. In an embodiment of the present invention, the voltage-driven organic light emitting pixel 300 includes an organic light emitting diode 310 , a data writing circuit 320 , a capacitor 330 , transistors M1 , M2 , M3 and a switch 370 .

[0053] Wherein, the organic light emitting diode 310 includes a first terminal 310a and a second terminal 310b, and the data writing circuit 320 is electrically coupled to the data line Data_N, the sustain voltage line Sus_N and the scan line Scan_N. And the data writing circuit 320 according to the scan voltage signal V carried by the scan line Scan_N Scan_N To determine the electrical conduction of the output end to the data line Data_N or the sustain voltage line Sus_N. In addition, the capacitor 330 has a terminal a and a terminal b, and the terminal a is ele...

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Abstract

The invention discloses a large-size active organic light emitting display panel and voltage driving organic light emitting pixel thereof, which comprise an organic light emitting diode, a data writing circuit, a capacitor, a first transistor, a second transistor, a third transistor and a first switch; among which, the data writing circuit comprises a second switch and a third switch. Compared with the prior structure, the voltage driving organic light emitting pixel of the invention can make up for the deficiency that the difference of the critical voltages between the thin film transistors (TFT) in the low-temperature poly-silicon (LPS) causes the picture to be displayed with Mura on the active organic electroluminescence display, and can improve the deficiency that the IR drop on the panel causes the Mura on the display of the picture and can enhance the stability of the circuit and has larger aperture ratio.

Description

technical field [0001] The present invention relates to an organic light emitting display panel, and in particular to an organic light emitting display panel with the function of compensating different critical voltages. Background technique [0002] Nowadays, electronic products with light, thin, short, and small characteristics are loved and accepted by the general public. Compared with the old vacuum tube displays, flat-panel displays are light, thin, and easy to place and carry, so they have become quite common. And promising electronic products. [0003] Please refer to figure 1 , figure 1 Shown is an existing voltage-driven organic light-emitting pixel, the voltage-driven organic light-emitting pixel 100 has transistors m1, m2, m4, m5, m6 and capacitor C st , and capacitance C st Has endpoints c, d. In addition, the sustain voltage line Sus_N-3 is electrically coupled to the transistor m5, and the scan line Scan_N-3 is electrically coupled to the gates of the tran...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32G09G3/30G09G3/20H05B33/08H05B33/14H05B37/02H01L27/32H01L51/50G09G3/3208H05B44/00
CPCY02B20/325Y02B20/30
Inventor 黄建翔郭鸿儒曾名骏
Owner INNOLUX CORP
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