Organic Light Emitting Diodes and Display Panels
A light-emitting diode, an organic technology, applied in the direction of semiconductor devices, electrical components, circuits, etc., can solve the problems that the intensity and color of red and green units are not easy to control, affect the display effect, and be complicated, so as to achieve stable light color, good display effect, The effect of stable light intensity ratio
Active Publication Date: 2019-03-12
BOE TECH GRP CO LTD +1
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Problems solved by technology
In order to improve the color shift and increase the lifespan of blue light, it can also be realized by using B+Y+B or B+R / G+B three units. The yellow light color gamut formed by R / G is better than that of pure Y yellow light. Therefore, R / G is mostly used to realize WOLED, but in the actual process, the adjustment of the recombination ratio of R and G electrons and holes is relatively complicated, and the intensity and light color of the red and green units are not easy to control, which affects the display effect.
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[0027] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted.
[0028] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present disclosure. However, those skilled in ...
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The invention provides an organic light-emitting diode and a display panel and belongs to the technical field of display. The organic light-emitting diode comprises a substrate, a first electrode arranged on the substrate, a second electrode, and a light-emitting layer between the first electrode and the second electrode, wherein the light-emitting layer comprises a first blue light unit, a secondyellow light unit and a first connection layer; and the first blue light unit is connected with the yellow light unit in series through the first connection layer, wherein the yellow light unit has astructure doped with a red dopant and a green dopant in a co-host, and the doping ratio trends of the red dopant and the green dopant in the co-host are opposite. According to the organic light-emitting diode, the light-emitting ratios of red and green units are easy to adjust, and the light intensity ratios of the red and green units are stable, so that the light color after the red and green units are compounded with the blue light unit is more stable and a relatively good display effect is achieved. The exciton compound rate can be improved and diffusion of compounded excitons towards functional layers at two sides is avoided, thereby reducing quenching caused by exciton movement and improving the light-emitting efficiency.
Description
technical field [0001] The present disclosure relates to the field of display technology, in particular, to an organic light emitting diode and a display panel. Background technique [0002] In recent years, OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display devices are suitable for flexible panels, It is considered to be the mainstream technology for next-generation displays due to its advantages such as a wide temperature range. Due to the flat light emission characteristics of OLED, it can also be made into WOLED (White Organic Light Emitting Diode, white light organic electroluminescent diode), which is used as a solid-state lighting source or a backlight source for liquid crystal displays. [0003] Due to the shadow effect of FMM (Fine Metal Mask, high-precision metal mask), large-size OLED displays need to use IJP ((Ink Jet Printing, inkjet printing technology) coating method. Currently, WOLED+CF (ColorFilter, color filter) is mostly used. ligh...
Claims
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IPC IPC(8): H01L51/50
Inventor 贾文斌万想朱飞飞王欣欣彭锐叶志杰孙力
Owner BOE TECH GRP CO LTD