Active matrix organic light emitting display and pixel structure thereof

Abstract

The invention provides an active matrix organic light emitting display and a pixel structure thereof. The pixel structure at least comprises a first pixel and a second pixel; the first pixel comprises a red sub-pixel, a first green sub-pixel and a blue sub-pixel, wherein the red sub-pixel, the first green sub-pixel and the blue sub-pixel are distributed in a triangular form; the second pixel comprises the red sub-pixel, a second green sub-pixel and the blue sub-pixel, wherein the red sub-pixel, the second green sub-pixel and the blue sub-pixel are distributed in a triangular manner. The first pixel and the second pixel share the red sub-pixel and the blue sub-pixel. Compared with the prior art, the pixel structure disclosed by the invention has the advantages that the first pixel and the second pixel, which are adjacent, share the red sub-pixel and the blue sub-pixel, so that the aperture opening ratio can be increased and the quality of a display frame can be improved. When the pixels are arranged in the horizontal direction, the quantity of pixel columns of the pixel structure provided by the invention can be reduced by half; when the pixels are arranged in the vertical direction, the quantity of pixel lines of the pixel structure provided by the invention can be reduced by half.

Description

technical field [0001] The invention relates to an organic light emitting display, in particular to an active matrix organic light emitting display and a pixel structure thereof. Background technique [0002] In recent years, conventional displays have been gradually replaced by portable thin flat panel displays. Self-illuminating displays such as organic or inorganic light emitting displays have more advantages than other flat panel displays because organic or inorganic light emitting displays can provide a wide viewing angle, good contrast ratio, and have a fast response speed. In this way, organic or inorganic light-emitting displays have attracted widespread attention as next-generation displays, especially organic light-emitting displays (Organic Light Emitting Displays, OLEDs) that include light-emitting layers formed by organic materials, while providing color images, compared with inorganic light-emitting displays. Emissive displays have higher brightness, lower dri...

AI Technical Summary

Problems solved by technology

However, when making the green sub-pixel, using a slit mask will result in a large alignment error

In addition, when the red and blue sub-pixels converge at four points, the display screen tends to be grainy; if a pixel structure with β equal to 2 is used, an algorithm is also required when driving the RB sub-pixels, and the timing control method is used to display the left and right screens or to calculate Averaging the signal to render the picture

However, the bridge electrodes connecting adjacent green sub-pixels are difficult to manufacture, and the flatness and alignment accuracy are low

In addition, the aperture ratio of the green sub-pixel is also smaller

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