Abstract: A pixel array includes a plurality of pixel groups, each of which includes a plurality of brightness sub-pixel regions, a plurality of first sub-pixel regions, and a plurality of second sub-pixel regions. Each brightness sub-pixel regions has a first side, a second side, a third side, and a fourth side. The first sub-pixel regions include a first group and a second group, and the second sub-pixel regions include a third group and a fourth group. The first, the second, the third, and the fourth groups are respectively disposed at the first, the third, the second, and the fourth sides of the first brightness sub-pixel region. Extension lines of long directions of the first, the second, the third, and the fourth groups respectively interlace a vertical baseline at a first angle ?1, a second angle ?2, a third angle ?3, and a fourth angle ?4. 0°<?1<90°, 0°<?2<90°, 0°<?3<90°, and 0°<?4<90°.

Abstract: A display panel includes a substrate, a luminous display array, a thin film encapsulation, an auxiliary layer, an optical film and an optical clear adhesive. The luminous display array is disposed on the substrate. The thin film encapsulation layer is disposed on the substrate, covering the luminous display array. The auxiliary layer is disposed on the then thin film encapsulation. The auxiliary layer has an even top surface, and a shore hardness ranging from D4 to D60. The optical film is disposed on the auxiliary layer. The optical clear adhesive is disposed on the even top surface of the auxiliary layer for attaching the auxiliary layer and the optical film.

Abstract: An organic electroluminescent device including an anode layer, an organic functional layer and a cathode layer is provided. The organic functional layer is disposed between the anode layer and the cathode layer. The cathode layer includes a first conductive layer and a second conductive layer. The first conductive layer is disposed between the organic functional layer and the second conductive layer, and work function of the first conductive layer is higher than work function of the second conductive layer.

Abstract: A display panel includes a substrate, a luminous display array, a thin film encapsulation, an auxiliary layer, an optical film and an optical clear adhesive. The luminous display array is disposed on the substrate. The thin film encapsulation layer is disposed on the substrate, covering the luminous display array. The auxiliary layer is disposed on the then thin film encapsulation. The auxiliary layer has an even top surface, and a shore hardness ranging from D4 to D60. The optical film is disposed on the auxiliary layer. The optical clear adhesive is disposed on the even top surface of the auxiliary layer for attaching the auxiliary layer and the optical film.

Abstract: A pixel structure of electroluminescent display panel has a first sub-pixel region, a second sub-pixel region and a third sub-pixel region. The pixel structure of electroluminescent display panel includes a first organic light-emitting layer and a second organic light-emitting layer. The first organic light-emitting layer, which includes a first organic light-emitting material, is disposed at least in the first sub-pixel region and the second sub-pixel region. The second organic light-emitting layer, which includes a second organic light-emitting material and a third organic light-emitting material, is disposed at least in the second sub-pixel region and the third sub-pixel region. The first organic light-emitting layer and the second organic light-emitting layer overlap in the second sub-pixel region. The first sub-pixel region and the third sub-pixel region have different cavity lengths.

Abstract: A white organic light-emitting device is provided by the present invention. The white organic light-emitting device includes an anode, a hole transport layer, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, an electron transport layer and a cathode, wherein the second light-emitting layer is formed between the first and the third light-emitting layers, the emission wavelength of the second light-emitting layer is longer than that of the first and third light-emitting layers, and the host material of the first and third light-emitting layer are different. The white organic light-emitting device of the present invention is capable of effectively increasing the luminous efficiency, reducing operating voltage, and providing color stability.

Abstract: Organic compounds and organic electroluminescent devices employing the same are provided.

Abstract: A pixel structure of an electroluminescent display panel includes a first sub-pixel region, a second sub-pixel region, a third sub-pixel region and a fourth sub-pixel region having different cavity lengths. The first sub-pixel region and the second sub-pixel region share a first organic light-emitting layer, which can generate a first primary color light in the first sub-pixel region, and a second primary color light in the second sub-pixel region. The third sub-pixel region and the fourth sub-pixel region share a second organic light-emitting layer, which can generate a third primary color light in the third sub-pixel region, and a fourth primary color light in the fourth sub-pixel region. The first primary color light, the second primary color light, the third primary color light and the fourth primary color light have different spectra of wavelength.

Abstract: In one aspect of the invention, an organic light emitting diode device has a substrate, a cathode formed on the substrate, an anode spaced-apart from the cathode, a plurality of electroluminescent units stacked between the cathode and the anode, and a plurality of charge generation layers, each of which is formed between two adjacent electroluminescent units. Each electroluminescent unit has an electron-transport layer, an emission layer formed on the electron-transport layer, and a hole-transport layer formed on the emission layer. The electron-transport layer of the first electroluminescent unit is formed on the cathode, defining a first energy barrier, and the anode is formed on the hole-transport layer of the last electroluminescent unit, defining a second energy barrier. The first energy barrier is higher than the second energy barrier. The first electroluminescent unit has a lifetime longer than that of each of the rest electroluminescent units.

Abstract: An organic electroluminescent device includes an optical substrate, a transparent electrode, an organic electroluminescent structure, and a back electrode. The optical substrate includes a base and a plurality of scattering particles. The scattering particles are mixed in the base. The transparent electrode is directly disposed on the optical substrate. The organic electroluminescent structure is disposed on the transparent electrode. The back electrode is disposed on the organic electroluminescent structure.

Abstract: An organic electroluminescent light source including a first organic electroluminescent device and a second organic electroluminescent device is provided. The first organic electroluminescent device is coupled to a first bias voltage to emit a first color light having a color temperature ranging from 2800K to 3500K. The second organic electroluminescent device is coupled to a second bias voltage to emit a second color light. The first color light and the second color light mix to generate a third color light having a color temperature ranging from 3500K to 6500K.

Abstract: An organic electroluminescent device includes an optical substrate, a transparent electrode, an organic electroluminescent structure, and a back electrode. The optical substrate includes a base and a plurality of scattering particles. The scattering particles are mixed in the base. The transparent electrode is directly disposed on the optical substrate. The organic electroluminescent structure is disposed on the transparent electrode. The back electrode is disposed on the organic electroluminescent structure.

Abstract: An organic light-emitting laminate for use in an organic electroluminescent device, characterized in comprising: a first light-emitting layer, including a first main light-emitting material and a first phosphorescent material, a second light-emitting layer, including a second main light-emitting material and a second phosphorescent material, formed on the first light-emitting layer, and a carrier-transporting material, which is included in at least one of the first light-emitting layer and the second light-emitting layer; wherein the first main light-emitting material, the second main light-emitting material and the carrier-transporting material each have a triplet energy level higher than that of the first phosphorescent material and the second phosphorescent material. The present invention also provides an organic electroluminescent device containing the organic light-emitting laminate.

Abstract: An organic light emitting device is provided. The organic light emitting device includes a substrate, at least one organic scattering layer, a first electrode layer, an organic light emitting layer, and a second electrode layer. The organic scattering layer is disposed on a surface of the substrate, and a glass transition temperature Tg of a material of the organic scattering layer is lower than 150° C. The first electrode layer is disposed on the substrate. The organic light emitting layer is disposed on the first electrode layer. The second electrode layer is disposed on the organic light emitting layer.

Abstract: An organic electroluminescent light source including a first organic electroluminescent device and a second organic electroluminescent device is provided. The first organic electroluminescent device is coupled to a first bias voltage to emit a first color light having a color temperature ranging from 2800K to 3500K. The second organic electroluminescent device is coupled to a second bias voltage to emit a second color light. The first color light and the second color light mix to generate a third color light having a color temperature ranging from 3500K to 6500K.

Abstract: Organic compounds and organic electroluminescent devices employing the same are provided.

Abstract: A white organic light-emitting device is provided by the present invention. The white organic light-emitting device includes an anode, a hole transport layer, a first light-emitting layer, a second light-emitting layer, a third light-emitting layer, an electron transport layer and a cathode, wherein the second light-emitting layer is formed between the first and the third light-emitting layers, the emission wavelength of the second light-emitting layer is longer than that of the first and third light-emitting layers, and the host material of the first and third light-emitting layer are different. The white organic light-emitting device of the present invention is capable of effectively increasing the luminous efficiency, reducing operating voltage, and providing color stability.

Abstract: A white light organic electroluminescent element is provided. The white organic electroluminescent element comprises an anode, a hole transporting layer on the anode, an orange light emitting layer on the hole transporting layer, a blue light emitting layer on the orange light emitting layer, an electron transporting layer on the blue light emitting layer, and a cathode on the electron transporting layer, wherein the orange light emitting layer is formed by co-evaporation of a host-emitting material, a blue guest-emitting material, and an orange guest-emitting material.

Abstract: Provided is an organic light-emitting laminate for use in an organic electroluminescent device, characterized in comprising: a first light-emitting layer, including a first main light-emitting material and a first phosphorescent material, a second light-emitting layer, including a second main light-emitting material and a second phosphorescent material, formed on the first light-emitting layer, and a carrier-transporting material, which is included in at least one of the first light-emitting layer and the second light-emitting layer; wherein the first main light-emitting material, the second main light-emitting material and the carrier-transporting material each have a triplet energy level higher than that of the first phosphorescent material and the second phosphorescent material. The present invention also provides an organic electroluminescent device containing the organic light-emitting laminate.

Abstract: A white light organic electroluminescent element is provided. The white organic electroluminescent element comprises an anode, a hole transporting layer on the anode, an orange light emitting layer on the hole transporting layer, a blue light emitting layer on the orange light emitting layer, an electron transporting layer on the blue light emitting layer, and a cathode on the electron transporting layer, wherein the orange light emitting layer is formed by co-evaporation of a host-emitting material, a blue guest-emitting material, and an orange guest-emitting material.