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Organic light emitting diode (OLED) pixel array, method for fabricating OLED pixel array, OLED display panel and display device

A pixel array and pixel technology, which is applied in the field of organic electroluminescence, can solve the problems of affecting display effect, dark spots, color edges, etc., and achieve the effects of improving resolution, reducing white space, and compacting arrangement.

Inactive Publication Date: 2016-05-04
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this array method needs to borrow the sub-pixels of adjacent pixels, and there are often problems such as chromatic aberration, color fringing, and dark spots that seriously affect the display effect when displaying.

Method used

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  • Organic light emitting diode (OLED) pixel array, method for fabricating OLED pixel array, OLED display panel and display device
  • Organic light emitting diode (OLED) pixel array, method for fabricating OLED pixel array, OLED display panel and display device
  • Organic light emitting diode (OLED) pixel array, method for fabricating OLED pixel array, OLED display panel and display device

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Embodiment Construction

[0047] specific implementation plan

[0048] In the standard RGB pixel array in the prior art, the OLED pixel array is composed of pixel units, and each pixel unit includes sub-pixels of red, green and blue colors (ie R sub-pixel, G sub-pixel, B sub-pixel). Any sub-pixel specifically includes an anode layer, a hole transport layer, an organic material light-emitting layer capable of emitting red / green / blue light, an electron transport layer, a cathode layer, and the like. In one row of the array, both the sub-pixels and the pixel units are side by side, so as to form a pixel row in which R, G, and B sub-pixels are sequentially arranged cyclically.

[0049] A fine metal mask is a high-precision mask with tiny openings. In order to prepare a pixel array, the two sub-pixels in the R / G / B sub-pixels are blocked by using the shielding effect of the mask block blocking area (such as blocking the R sub-pixel and the G sub-pixel), and the deposition corresponding to the other sub-pixe...

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Abstract

The invention discloses an organic light emitting diode (OLED) pixel array. The OLED pixel array comprises a plurality of pixel units, wherein the pixel units are arranged side by side in a line direction of the pixel array; each pixel unit comprises an R sub pixel, a G sub pixel and a B sub pixel; in each pixel unit, the B sub pixel is an intermediate sub pixel, and the R sub pixel and the G sub pixel are end sub pixels; and adjacent end sub pixels of two adjacent pixel units are same-type sub pixels. The invention also discloses a method for evaporating the pixel array by using a fine metal mask, wherein adjacent same-color sub pixels of the adjacent pixel units are evaporated in the same mask opening. The method has the advantages that color mixing is prevented, the resolution is improved, and the mask operation is facilitated. The invention also discloses an OLED display panel and display device applying the pixel array.

Description

field of invention [0001] The invention relates to the field of organic electroluminescence, in particular to an OLED pixel array, a method for preparing the OLED pixel array, an OLED display panel containing the OLED pixel array, and a display device. Background technique [0002] Flat panel displays include LCD displays, OLED displays, PDP displays, and electronic ink displays. Organic Light Emitting Diode (OLED) display is recognized by the industry as the second largest display after Liquid Crystal Display (LCD) due to its thinness, active light emission, fast response speed, wide viewing angle, rich colors and high brightness, low power consumption, high and low temperature resistance and many other advantages. The third-generation display technology can be widely used in terminal products such as smartphones, tablets, and TVs. [0003] The existing mature technology of OLED is to use Fine Metal Mask (FMM) to prepare color pixel patterns by evaporating organic light-em...

Claims

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Application Information

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IPC IPC(8): H01L27/32
CPCH10K59/353G09G2300/0452G09G2320/0242G09G3/3208H10K59/35
Inventor 李冬伟
Owner BOE TECH GRP CO LTD
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