Array substrate, preparation method of the same, and display apparatus
An array substrate and sub-pixel unit technology, which is applied in semiconductor/solid-state device manufacturing, organic semiconductor devices, electrical components, etc., can solve the impact of full-color display effects on the production yield of resonant cavities, limit the diversity of resonant cavity lengths, and affect Resonant cavity yield and other issues to achieve the effect of achieving diversity, improving work reliability, and improving surface roughness
Active Publication Date: 2019-04-19
BOE TECH GRP CO LTD
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Problems solved by technology
However, it is difficult for ITO to form a thicker film layer, which limits the diversity of the cavity length of the resonator and limits the improvement of the full-color display effect.
Moreover, in the process of etching and forming ITO with different thicknesses, the problem of ITO etching residue or over-etching is prone to occur, which affects the yield of the resonant cavity.
To sum up, the existing technology of forming resonant cavities with different cavity lengths limits the improvement of full-color display effects and affects the production yield of resonant cavities
Method used
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Embodiment Construction
[0032] The embodiment of the present application provides an array substrate, such as figure 1 As shown, the array substrate has sub-pixel units with multiple luminescent colors; figure 1 The cross-sectional view of AA’ in figure 2 As shown, each sub-pixel unit includes a resonant cavity 3 formed by a reflective layer 1 and a cathode 2 oppositely arranged, and the resonant cavity 3 further includes: an anode 4 located between the reflective layer 1 and the cathode 2 , and the luminescent functional layer 5 between the anode 4 and the cathode 2; as figure 1 , 2 The array substrate shown includes a red sub-pixel unit R, a green sub-pixel unit G and a blue sub-pixel unit B, figure 2 The middle light emitting functional layer 5 includes a red light emitting functional layer 6, a green light emitting functional layer 7 and a blue light emitting functional layer 8;
[0033] The resonant cavities 3 of the sub-pixel units of the same luminous color have the same length, and the ...
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The invention discloses an array substrate, a preparation method of the same, and a display apparatus, for improving the display effect of display products and improving the manufacturing yield rate of a resonant cavity. The array substrate is provided with sub-pixel units with various emitting colors, wherein each sub-pixel unit includes a resonant cavity formed a reflection layers and a cathodewhich are arranged oppositely; the resonant cavity also includes an anode between the reflection layer and the cathode, and a light emitting functional layer between the anode and the cathode; the length of the resonant cavity of the sub-pixel units of the same emitting color is the same, and the length of the resonant cavity of the sub-pixel unit of different emitting color is different to each other; the thicknesses of the anode of the sub-pixel unit of different emitting color is the same; and the thickness of the light emitting functional layer of the sub-pixel unit of different emitting color is the same.
Description
technical field [0001] The present application relates to the field of display technology, in particular to an array substrate, a manufacturing method thereof, and a display device. Background technique [0002] Organic light-emitting diodes (Organic Light-Emitting Diodes, OLEDs) are widely used in display and other fields due to their advantages such as self-luminescence, high efficiency, low operating voltage, thinness, and flexibility. Generally, the emission band of organic light-emitting materials is relatively wide, and the full width at half maximum of the spectrum is about 100 nanometers, which has a certain gap for the saturated color required for full-color display. In order to improve the effect of full-color display, the method of introducing an optical resonant cavity into the device has been proved to be a good method. Compared with ordinary organic light-emitting devices, organic light-emitting devices with resonant cavities can obtain better monochromatic li...
Claims
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IPC IPC(8): H01L27/32H01L51/52H01L51/56
CPCH10K59/35H10K59/1201H10K59/878H10K59/12H10K59/876H10K59/80518H10K71/231H10K2102/351H10K50/852H10K71/00
Inventor 王国英宋振
Owner BOE TECH GRP CO LTD