Organic light-emitting diode display substrate and display device and preparation method thereof
A technology of light-emitting diodes and display substrates, which is applied in the manufacturing/processing of organic light-emitting devices, organic light-emitting devices, diodes, etc. low consumption effect
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Embodiment 1
[0026] This embodiment provides an organic light emitting diode display substrate, which includes blue pixels and first color pixels,
[0027] A first-color light-emitting unit is provided in the first-color pixel, and in the first direction, the first-color light-emitting unit sequentially includes a first electrode, a first functional layer, a first-color light-emitting layer, a first carrier generation layer, a first A blue light emitting layer, a second carrier generation layer, a second blue light emitting layer, a second functional layer, and a second electrode;
[0028] A blue light-emitting unit is provided in the blue pixel, and in the first direction, the blue light-emitting unit sequentially includes a first electrode, a first functional layer, a first carrier generation layer, a first blue light-emitting layer, a second The carrier generation layer, the second blue light emitting layer, the second functional layer, and the second electrode.
[0029] In the organic...
Embodiment 2
[0031] Such as figure 2 As shown, this embodiment provides an organic light emitting diode (OLED) display substrate, including blue pixels B and first color pixels.
[0032] Preferably, the OLED display substrate further includes pixels of a second color.
[0033] More preferably, one of the first color and the second color is blue and the other is green.
[0034] That is to say, the organic light emitting diode display substrate of this embodiment can be a conventional organic light emitting diode display substrate having three color pixels of red, green and blue. In this embodiment, the first color is red and the second color is green as an example for description. Of course, it should be understood that the first color may be green and the second color may be red, and the OLED display substrate may also include pixels of other colors such as yellow pixels and white pixels.
[0035] In the OLED display substrate of this embodiment:
[0036] A red light-emitting unit is ...
Embodiment 3
[0057] Such as figure 2 As shown, this embodiment provides a method for preparing the above-mentioned organic light emitting diode display substrate, wherein,
[0058] The first light-emitting layer (such as the red light-emitting layer ER) is formed by a solution method (of course, if there is a green light-emitting layer EG as the second light-emitting layer, it should also be prepared by a solution method);
[0059] The first blue light emitting layer EB1 and the second blue light emitting layer EB2 are formed by vapor deposition.
[0060] That is to say, in the above-mentioned organic light emitting diode display substrate, red light emitting layer ER, green light emitting layer EG and other light emitting layers can be prepared by solution method, and blue light emitting layer (first blue light emitting layer EB1, second blue light emitting layer EB1, etc. The blue light-emitting layer EB2) can be prepared by evaporation method.
[0061] In this embodiment, because the...
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Abstract
Description
Claims
Application Information
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