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Organic light-emitting device, display panel and display device

An electroluminescent device and organic light-emitting layer technology, which is applied in the direction of electric solid devices, electrical components, semiconductor devices, etc., can solve the problems of OLED display color difference and large color shift, achieve a flat brightness efficiency curve, and alleviate color aberration and color shift. , the effect of reducing the efficiency roll-off

Pending Publication Date: 2021-11-23
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display panels are widely used in the current display and lighting fields due to their wide color gamut, low power consumption, windability, and thin structure, and are likely to completely replace LCD ( Liquid Crystal Display (LCD) trend; however, an unavoidable disadvantage of OLED compared to LCD is the display color difference and color shift problem, because OLED usually uses RGB (red, green and blue) three primary colors at present (that is, the display requires RGB three devices light emission), and LCD is a backlight panel that adjusts the light intensity through liquid crystal molecules to achieve different brightness displays; therefore, the brightness of LCD is closer to linearity with the current density curve than OLED, which is also the reason for the large color difference and color shift of OLED display

Method used

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  • Organic light-emitting device, display panel and display device
  • Organic light-emitting device, display panel and display device
  • Organic light-emitting device, display panel and display device

Examples

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Embodiment Construction

[0040] 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 embodiments 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 same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0041] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, for example, according to the description in the accompanyin...

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PUM

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Abstract

The invention relates to the technical field of display, and discloses an organic light-emitting device, a display panel and a display device. The organic light-emitting device comprises an anode and a cathode which are oppositely arranged, and an organic light-emitting layer located between the anode and the cathode, under the set electric field intensity, the ratio of the electron mobility to the hole mobility of the organic light-emitting layer is larger than or equal to 6 and smaller than or equal to 12, so that efficiency roll-off is reduced, the brightness efficiency curve of the organic light-emitting device is smoother, and color difference and color cast under high brightness are relieved.

Description

technical field [0001] The present disclosure relates to the field of display technology, in particular, to an organic electroluminescent device, a display panel including the organic electroluminescent device, and a display device including the display panel. Background technique [0002] OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) display panels are widely used in the current display and lighting fields due to their wide color gamut, low power consumption, windability, and thin structure, and are likely to completely replace LCD ( Liquid Crystal Display (LCD) trend; however, an unavoidable disadvantage of OLED compared to LCD is the display color difference and color shift problem, because OLED usually uses RGB (red, green and blue) three primary colors at present (that is, the display requires RGB three devices Light emission), while LCD is a backlight panel that adjusts the light intensity through liquid crystal molecules to achieve different bright...

Claims

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Application Information

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IPC IPC(8): H01L51/50H01L27/32
CPCH10K59/12H10K50/11H10K2101/40
Inventor 周辉李彦松杜小波陈永红马立辉
Owner BOE TECH GRP CO LTD