Abstract:
In a method of forming an organic light emitting structure, a plurality of first electrodes spaced apart from each other is formed on a lower substrate. A first organic layer covering the first electrodes is formed on the lower substrate. A preliminary pixel defining layer is formed on the first organic layer. The preliminary pixel defining layer includes a photosensitive material, and is selectively exposed to light so that the preliminary pixel defining layer and a portion of the first organic layer beneath the preliminary pixel defining layer are transformed into a pixel defining layer and a first organic layer pattern, respectively. An emitting layer is formed on the first organic layer exposed by the pixel defining layer. A second organic layer is formed on the emitting layer. A second electrode is formed on the second organic layer.
Abstract:
A display panel manufacturing device including a stage slider, a first stage configured to slide on the stage slider and to receive a test substrate, a second stage on the stage slider and configured to receive a main substrate, and a patterning unit located at a distance from the stage slider and configured to discharge organic drops onto the test substrate, configured to analyze patterns of the organic drops, configured to modify the patterns of the discharged organic drops according to an analysis of the patterns of the organic drops, and configured to discharge the organic drops onto the main substrate.
Abstract:
An organic light emitting display device is disclosed. The organic light emitting display device includes a substrate, a first electrode, a pixel defining layer, a first hydrophobic pattern, at least one charge transport layer, a second hydrophobic pattern, an organic light emitting layer and a second electrode. The substrate has a pixel region and a non pixel region surrounding the pixel region. The first electrode, the at least one charge transport layer and the organic light emitting layer are disposed on the substrate in the pixel region, while the pixel defining layer, the first hydrophobic pattern and the second hydrophobic pattern are disposed on the substrate in the non pixel region. The charge transport layer of one pixel is separated from a charge transport layer of another pixel by the first and second hydrophobic patterns to prevent crosstalk phenomenon.
Abstract:
A photosensitive composition, which has a cross-linking monomer having at least two ethylenic double bonds, a photopolymerization initiator, and an organic solvent, and a method of preparing a barrier rib for a plasma display panel, wherein the photosensitive composition is used. The photosensitive composition provides improved adherence to an inorganic material and an organic material.
Abstract:
A flat display panel in which a field emission principle of ferroelectrics is applied to improve the luminous efficiency with a low driving voltage, and a method of driving the same. The flat display panel includes a first substrate and a second substrate which face each other, barrier ribs which are disposed between the first and second substrates and partition a space between the first and second substrates into a plurality of display cells, a ferroelectric layer which is disposed to face the display cells and is formed of a ferroelectric material that is to be dielectric-polarized according to an external electric field, a first electrode and a third electrode to which electric fields having different opposite polarities are sequentially applied and which induces polarization inversion in the ferroelectric layer placed between the first and third electrodes so that the ferroelectric layer emits electron beams into the display cells, an excitation gas filled in the display cells to be excited by the electron beams, and a phosphor layer formed in the display cells.
Abstract:
The invention provides a plasma display panel having improved luminous efficiency. The improved luminous efficiency may result in part from at least the configuration and/or arrangement of facing sustain and scan electrodes. In one embodiment, the electrodes may have concave portions that are selectively formed at locators where the electrodes intersect barrier ribs that separate adjacent discharge cells of different colors. This configuration may reduce the charge distribution around the portions where the concave are formed, and may also prevent erroneous discharge from being transferred to adjacent discharge cells. The principles of the invention may be used to produce or light density PDP that increases luminous efficiency and decreases a discharge firing voltage.
Abstract:
An organic light emitting diode (OLED) display may be constructed with a substrate; a first electrode formed on the substrate; a barrier rib formed on the substrate and having an opening exposing the first electrode; an organic emission layer formed on the first electrode; and a second electrode formed on the organic emission layer. The barrier rib includes an isolating groove formed between organic emission layers of neighboring pixels. Accordingly, in the organic light emitting diode (OLED) display, the isolating groove is formed at the barrier rib such that ink is prevented from crossing over the barrier rib and flowing into a neighboring pixel without a hydrophobic surface treatment of the barrier rib.
Abstract:
An apparatus for forming a thin layer on a large substrate, a method of manufacturing an organic light-emitting display apparatus by using the apparatus, and an organic light-emitting display apparatus manufactured using the method.
Abstract:
A plasma display panel capable of increasing a luminous efficiency while decreasing discharge firing voltage while easily generating an address discharge by generating a sustain discharge as facing discharge. The discharge sustain electrodes are on barrier ribs between the two substrates. One of the sustain discharge electrodes extends between discharge cells and the other extends through discharge cells dividing discharge cells into two portions. Each discharge sustain electrode is surrounded by a dielectric material and also a non-transparent MgO protective layer. These electrodes are formed to be tall and narrow to allow for superior facing discharge potential.
Abstract:
A photosensitive composition, which has a cross-linking monomer having at least two ethylenic double bonds, a photopolymerization initiator, and an organic solvent, and a method of preparing a barrier rib for a plasma display panel, wherein the photosensitive composition is used. The photosensitive composition provides improved adherence to an inorganic material and an organic material.