Abstract:
The present invention provides an organic EL device having at least an anode, a first hole transport layer, a second hole transport layer, a luminous layer, an electron transport layer, and a cathode in this order, wherein the second hole transport layer contains an arylamine compound represented by the following general formula (1), and the electron transport layer contains a pyrimidine derivative represented by the following general formula (2). The organic EL device of the present invention has a high efficiency, and is driven at a low driving voltage. Further, it has a particularly long lifetime.
Abstract:
An organic light emitting display device includes a display panel including a display region where a plurality of pixels are disposed, a pad region including a bending region and a pad electrode region where pad electrodes are disposed, a polarizing layer disposed in the display region, and a lower protection film disposed on a lower surface of the display panel. The lower protection film includes a first and a second lower protection film pattern. The first lower protection film pattern is disposed in the display region, and the second lower protection film pattern in the pad electrode region such that a lower surface of the display panel in the bending region is exposed. The bending protection layer has an upper surface with a height that is less than a height of the polarizing layer, and is disposed in the bending region on the display panel
Abstract:
An organic light-emitting diode (OLED) display device, a manufacturing method thereof and a display device are disclosed. The OLED device includes: a first substrate (1); an OLED (2) disposed on the first substrate (1); at least one encapsulation layer (3, 4) disposed on the OLED (2); a bonding layer (5) disposed on the at least one encapsulation layer (3, 4); and a second substrate (6) disposed on the bonding layer (5). A concave-convex structure is provided on at least one surface of the at least one encapsulation layer (3, 4). The OLED display device can reduce the damage of moisture and oxygen on the OLED device and improve the moisture and oxygen resistance of the OLED device.
Abstract:
The present disclosure discloses an encapsulation system and an encapsulation method, the encapsulation system comprising a thickness detection unit, an output control unit and an energy output unit, the thickness detection unit being connected with the output control unit, and the output control unit being connected with the energy output unit. The thickness detection unit is configured to detect a thickness of an encapsulant at a to-be-heated location in a component to be encapsulated and generate corresponding thickness information. The output control unit is configured to generate corresponding output control information depending on the thickness information. The energy output unit is configured to output, depending on the output control information, to the encapsulant at the to-be-heated location energy for heating the encapsulant. With the technical solution of the present disclosure, the encapsulant can be heated properly based on its actual state such that the encapsulant at the to-be-heated location can all sufficiently melt, which effectively improves the sealing of the product.
Abstract:
A display unit capable of being simply designed and manufactured by using more simplified light emitting device structure while capable of high definition display and display with superior color reproducibility and a manufacturing method thereof are provided. The display unit is a display unit (1), wherein a plurality of organic EL devices (3B), (3G), and (3R), in which a function layer (6) including a light emitting layer (11) is sandwiched between a lower electrode (4) made of a light reflective material and a semi-transmissive upper electrode (7), and which has a resonator structure in which light h emitted in the light emitting layer (11) is resonated using a space between the lower electrode (4) and the upper electrode (7) as a resonant section (15) and is extracted from the upper electrode (7) side are arranged on a substrate (2). In the respective organic EL devices (3B), (3G), and (3R), the function layer (6) is made of an identical layer, and an optical distance L of the resonant section (15) is set to a value different from each other so that blue, green, or red wavelength region is resonated.
Abstract:
A display device including emitting areas (BEA, REA, GEA, WEA) is provided. The emitting areas of the display device may realize a different color each other. The display device includes light-emitting structures (300B, 300R, 300G, 300W) on the emitting areas. The adjacent light-emitting structures have different heights with respect to the lower substrate, such that a size of a non-emitting area between the adjacent emitting areas is reduced.
Abstract:
A light emitting photonic crystal having an organic light emitting diode and methods of making the same are disclosed. An organic light emitting diode disposed within a photonic structure having a band-gap, or stop-band, allows the photonic structure to emit light at wavelengths occurring at the edges of the band-gap. Photonic crystal structures that provide this function may include materials having a refractive index that varies periodically such as distributed Bragg reflectors, aligned nematic liquid crystals, and holographically recorded gratings.
Abstract:
Disclosed is an organic light emitting display device. The organic light emitting display device includes a substrate in which red, green, and blue pixel areas are defined, a first electrode (110) and a first hole transporting layer (130) that are formed on the substrate, first to third emission common layers (142, 144, 146) formed in each of the pixel areas on the first hole transporting layer (130), and an electron transporting layer (150) and a second electrode (160) that are formed on the third emission common layer (146). Accordingly, color mixture is prevented, limitations due to a defective mask are overcome, a process is simplified, and the manufacturing cost is saved.
Abstract:
Disclosed is an organic electroluminescent device, comprising a substrate and light emitting units formed in sequence on the substrate, characterized in that, each of the light emitting units comprises a first electrode layer (1), a light emitting layer (2) and a second electrode layer (3), the light emitting layer comprises a host material and a dye, the host material is made of materials having both electron transport capability and hole transport capability; at least one material in the host material has a CT excited triplet state energy level T 1 greater than its n-π excited triplet state energy level S 1 , and T 1 -S 1 ≤ 0.3eV; or, at least one material in the host material has a CT excited triplet state energy level T 1 greater than its n-π excited triplet state energy level S 1 , and T 1 -S 1 ≥ 1eV, with the difference between its n-π excited second triplet state energy level and its CT excited first singlet state energy level being in the range of -0.1eV to 0.1eV. The organic electroluminescent device configuration can sufficiently utilize the triplet state energy in the host material and the dye to increase the luminous efficiency and prolong the service life of the device.
Abstract:
A double-layer doped phosphorescent light emitting device and a fabrication method thereof are provided, and the double-layer doped phosphorescent light emitting device comprises a light emitting double-layer (13), wherein the light emitting double-layer comprises a first light emitting layer (131) and a second light emitting layer (132), the first light emitting layer and the second light emitting layer each comprise a host material and a guest material, the host material of the first light emitting layer (131) is a hole type host material and the host material of the second light emitting layer (132) is an electron type host material.