An organic light emitting element, manufacturing method and display device
A technology of organic light-emitting elements and display devices, which is applied in the direction of electrical components, semiconductor/solid-state device manufacturing, semiconductor devices, etc., and can solve problems such as weakening of luminous intensity, short life, and affecting the image display effect of organic light-emitting element display panels. Avoid yellowish white light and ensure the effect of image display
Active Publication Date: 2018-04-24
WUHAN TIANMA MICRO ELECTRONICS CO LTD +1
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[0004] However, in the existing organic light emitting element display panel, due to the difference in the stability of the organic light emitting elements of three different colors, the life of the blue light organic light emitting element is shorter than that of the red light organic light emitting element and the green light organic light emitting element. As the use time continues to increase, the luminous intensity of blue organic light emitting elements will become weaker than that of green light organic light emitting elements and red light organic light emitting elements, and the white light synthesized by the three will be yellowish, which will affect the image display of organic light emitting element display panels Effect
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[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0021] like figure 1 as shown, figure 1 It is the brightness and time curve diagram of red light, green light, blue light and white light in the existing OLED display panel. The horizontal axis T is the time axis, and the unit is s (second), and the vertical axis luminance is the brightness axis. When the blue light organic light-emitting element synthesizes white light with the red light and green light organic light-emitting element, because the blue light...
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The invention discloses an organic light-emitting element, a manufacturing method and a display device. The organic light-emitting element comprises: an anode and a cathode arranged oppositely; a functional layer arranged between the anode and the cathode; A hole injection layer, a hole transport layer, a light-emitting layer, and an electron transport layer of cloth; the first direction is perpendicular to the anode and the cathode, and the anode points to the cathode; the light-emitting layer includes a first blue light functional layer and a second blue light functional layer; wherein , the CIE coordinates of blue light emitted through the first blue light functional layer are (x1, y1), and the CIE coordinates of blue light emitted through the second blue light functional layer are (x2, y2), and x1=x2, y1>y2. The technical solution of the present invention can reduce the degree of the yellowish color gamut of the synthesized white light caused by the brightness difference between the blue light organic light emitting element and the red light and green light emitting element, and even avoid the problem of the yellowish yellowish of the synthesized white light, ensuring the image display effect.
Description
technical field [0001] The present invention relates to the technical field of display devices, and more specifically, to an organic light-emitting element, a manufacturing method and a display device. Background technique [0002] With the continuous development of science and technology, more and more electronic devices with display functions are widely used in people's daily life and work, which brings great convenience to people's daily life and work, and has become an indispensable essential tool. [0003] The main component of an electronic device to realize a display function is a display panel. An OLED (Organic Light-Emitting Diode, organic light-emitting) display panel is a display panel commonly used in electronic devices today. In existing OLED display panels, white light is generally synthesized by red organic light emitting elements, green organic light emitting elements and blue organic light emitting elements. [0004] However, in the existing organic light...
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IPC IPC(8): H01L51/56H01L51/50H01L27/32
CPCH10K59/30H10K59/00H10K50/13H10K50/125H10K50/11H10K50/00H10K71/00
Inventor 朱见杰熊志勇
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD