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Active matrix organic light emitting display (AMOLED) device

A display device, active matrix technology, applied in the field of active matrix OLED equipment

Inactive Publication Date: 2009-07-15
INTERDIGITAL CE PATENT HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0044] The disadvantage of this solution is that it requires addressing the matrix three times faster than standard addressing
Another disadvantage is that due to the fact that different colors are displayed at different time intervals (for example, during the first subframe, red+green+blue; during the second subframe, red+blue; during the third subframe, only blue color), so there is some color smearing (lag) on ​​moving edges

Method used

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  • Active matrix organic light emitting display (AMOLED) device
  • Active matrix organic light emitting display (AMOLED) device
  • Active matrix organic light emitting display (AMOLED) device

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Embodiment Construction

[0080] The idea of ​​the present invention is to address only the pixels associated with one color at a given time period of a video frame by modifying the connections of the row and column drivers to the active matrix and by addressing the video information differently to the column drivers. Component light emitting elements. In the following part of the description, the row driver is called the first driver, because the same output of this driver can select the light-emitting elements belonging to a group of rows, and the column driver is called the second driver, because the driver's Both outputs can simultaneously deliver video information to light elements belonging to the same column of the matrix. The internal structure of the first driver and the second driver is the same as that of a typical row driver and column driver and is well known to those skilled in the art.

[0081] Figure 11 A display device is shown, which includes: a QVGA matrix 10 of light-emitting ele...

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Abstract

The present invention relates to an active matrix OLED (Organic Light Emitting Display) device. It comprises a matrix of luminous elements associated to different colour components (red, green,blue). According to the invention, the connection of the row driver (20) and / or data driver (30) to the luminous elements of the matrix is modified. Each output of the row driver is connected to luminous element associated to a same colour component (red or green or blue).

Description

technical field [0001] The present invention relates to an active matrix OLED (Organic Light Emitting Display) device. The device has been developed more particularly but not exclusively for video applications. Background technique [0002] The structure of active matrix OLEDs or AM-OLEDs is known. It includes: [0003] - An active matrix, comprising, for each cell, the association of several thin-film transistors (TFTs) with a capacitor connected to the OLED material; this capacitor acts as a memory component that stores a value during a portion of a video frame representing the or video information to be displayed by the unit during the next part of the video frame; the TFT acts as a switch enabling the selection of the unit, the storage of data in the capacitor, and the display of the video information corresponding to the stored data by the unit ; [0004] - a row or gate driver which selects the cells of the matrix row by row in order to refresh the contents of said...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G2300/0842G09G2300/0452G09G3/3225G09G3/3233G09G3/3266G09G2320/0271G09G3/3291H10K59/12
Inventor 塞巴斯蒂安·韦特布鲁克英戈·多瑟西尔万·蒂鲍德
Owner INTERDIGITAL CE PATENT HLDG
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