Organic electroluminescence device and display method thereof
An electroluminescent device and display method technology, applied in the direction of circuits, electrical components, electric solid-state devices, etc., can solve the problems of low driving voltage, color shift of the screen, etc., reduce color shift, increase light-emitting area, compensate for The effect of low luminous efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0045] First of all, it should be explained that the traditional organic electroluminescent device is a pixel unit composed of RGB three-color sub-pixels. In practical application, there is a large difference in efficiency of blue sub-pixels under different driving voltage conditions. Specifically, under high-voltage driving, the luminous efficiency of the blue sub-pixel is relatively high; under low-voltage driving, the luminous efficiency of the blue sub-pixel is lower than the normal level. However, the red sub-pixel and the green sub-pixel can normally emit light under low-voltage driving, and their luminous efficiency is relatively balanced. This leads to a large difference between the luminous efficiency of the red light sub-pixel unit and the green light sub-pixel unit and the luminous efficiency of the blue light sub-pixel under low-voltage driving, which in turn causes a color shift phenomenon on the screen.
[0046] In view of the above problems, an embodiment of the...
Embodiment 2
[0063] An embodiment of the present invention provides a display method of the organic electroluminescence device provided in the above embodiment 1, such as Figure 4 shown, including the following steps:
[0064] Step S21, provide an organic electroluminescent device, the organic electroluminescent device includes a plurality of pixel units distributed in an array, each pixel unit includes a red light sub-pixel unit 1, a green light sub-pixel unit 2 and a blue light sub-pixel unit 3, the blue light sub-pixel unit 3 The number is at least two, wherein each sub-pixel unit can be driven independently.
[0065] The organic electroluminescence device has been described in detail in Embodiment 1, and will not be repeated here.
[0066] Step S22 , judging the number of blue light sub-pixels to be turned on according to the brightness value requirements for the blue light sub-pixels.
[0067] That is, through the above display method, according to the brightness value requirement ...
Embodiment 3
[0077] This embodiment provides an organic electroluminescent device, including several pixel units distributed in an array, such as figure 2 As shown, each pixel unit includes a red sub-pixel unit 1, a green sub-pixel unit 2 and two blue sub-pixel units 3, and the blue sub-pixel unit 3 includes a first blue sub-pixel unit 31 and a second blue sub-pixel unit 32 , each sub-pixel unit can be driven independently.
[0078] Wherein, BCzVBI is selected as the luminescent material in the first blue sub-pixel unit 31 , and BCzVBI is selected as the luminescent material in the second blue sub-pixel unit 32 .
[0079] In this embodiment, the device structure of the red sub-pixel unit 1 is Ag(10nm) / ITO(100nm) / CuPc(20nm) / TPD(200nm) / CBP:Ir(piq) 3 (3%, 30nm) / TPBi(40nm) / LiF(1nm) / Mg:Ag(20%, 15nm) / NPB(60nm).
[0080] The device structure of the green sub-pixel unit 2 is Ag(10nm) / ITO(100nm) / CuPc(20nm) / TPD(200nm) / CBP:Ir(ppy) 3 (10%, 30nm) / TPBi(40nm) / LiF(1nm) / Mg:Ag(20%, 15nm) / NPB(60nm).
[...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap