Displayer and driving method thereof

A display and conduction technology, applied in the field of organic light emitting diode displays and their driving

Active Publication Date: 2013-09-25
INNOCOM TECH SHENZHEN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] In fact, it is not possible to achieve C due to space constraints at design time 2 >>C P , resulting in fT The variation of the drive current I DRIVE effect, but the drive current I DRIVE still with the critical voltage V T related, will still be affected by the threshold voltage V T Variation effect of

Method used

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  • Displayer and driving method thereof
  • Displayer and driving method thereof
  • Displayer and driving method thereof

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Embodiment Construction

[0041] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0042] First preferred embodiment of the display

[0043] refer to image 3 , the first preferred embodiment of the display of the present invention has at least one pixel circuit. The pixel circuit includes an OLED 31 , a transistor 32 , a first capacitor 33 , a second capacitor 34 , a first switch 35 , a second switch 36 , a third switch 37 and a switch unit 38 .

[0044] The OLED 31 has an anode and a cathode electrically connected to a first power terminal 41 . The transistor 32 has a first terminal, a second terminal electrically connected to the anode of the OLED 31, and a control terminal. The first capacitor 33 has a first terminal and a second terminal electrically connected to the control terminal of the transistor 32 . The second capacitor 34 has a first terminal electrically connected to the first terminal of the first capacitor 33 , and a second...

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Abstract

The invention provides a displayer and a driving method of the displayer. The displayer is provided with a pixel circuit. The pixel circuit comprises an organic light-emitting diode, a transistor, a first capacitor, a second capacitor, a first switch, a second switch, a third switch and a switch unit. The invention further provides a driving method used for driving the pixel circuit. As a result, the first switch, the second switch, the third switch and the switch unit are controlled, so that a driving current generated by the transistor is unrelated to the critical voltage of the transistor substantially.

Description

technical field [0001] The invention relates to a display technology, in particular to an organic light emitting diode (OLED) display and a driving method thereof. Background technique [0002] Due to the advantages of self-illumination, high brightness, fast response time, and wide viewing angle, OLED display devices have gradually attracted attention and been used. [0003] An OLED display device achieves the function of displaying images through a plurality of pixel circuits arranged in an array and capable of displaying different colors, and sequentially scans the pixel circuits row by row or column by row to determine the light intensity of each pixel circuit. Each pixel circuit includes an OLED, and generates a driving current to drive the OLED, so that the OLED emits light whose intensity is related to the magnitude of the driving current. [0004] refer to figure 1 and figure 2 , an existing pixel circuit includes an OLED11, a first transistor 12, a second transi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32G09G3/3208
Inventor 曾名骏郭拱辰陈联祥
Owner INNOCOM TECH SHENZHEN
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