Abstract: A compound according to Formula (1), in which D is an electron donor containing a nitrogen atom and is bonded to a benzene ring through the nitrogen atom; A is an electron acceptor containing a boron atom and is bonded to a benzene ring through the boron atom; m and n are each an integer selected from 1, 2 or 3; and R11, R12, R13, R14 are each independently selected from the group consisting of a hydrogen atom, alkyl, alkoxy, cyano, trifluoromethyl, an electron acceptor A?, and a nitrogen-containing electron donor D. In the compound, biphenyl acts as a linking unit between the electron donor D and the electron acceptor A, such that units D and A are located at different positions of the molecule, realizing effective separation between HOMO and LUMO. In addition, the light absorption and vibration strength of the molecule are enhanced.

Abstract: The present disclosure describes a compound, a light-emitting material, an organic light-emitting display panel and an organic light-emitting display device. The compound has the structure of Formula I. The light-emitting material comprises any one or a combination of at least two of the compounds. The organic light-emitting display panel comprises an anode and a cathode disposed opposite to each other, and an organic layer disposed between the anode and the cathode. The material of the organic layer comprises any one or a combination of at least two of the compounds. The organic light-emitting display device comprises the organic light-emitting display panel. The compound has an energy level difference between a singlet and a triplet states as ?Est?0.30 eV, and, when used in an organic light-emitting display panel, can further increase the luminous efficiency of the device.

Abstract: The present disclosure provides an organic light-emitting display panel and an organic light-emitting display device for improving the uniformity of the display effects of both sides. The organic light-emitting display panel includes an array substrate having a plurality of pixel units; a plurality of organic light-emitting diodes located in the pixel units of the array substrate. The plurality of organic light-emitting diodes includes a plurality of first organic light-emitting diodes and a plurality of second organic light-emitting diodes, wherein the first organic light-emitting diodes are organic bottom light-emitting diodes and the second organic light-emitting diodes are organic top light-emitting diodes. The area of the pixel unit where the first organic light-emitting diodes are located is larger than area of the pixel unit where the second organic light-emitting diodes are located. The organic light-emitting display panel according to the present disclosure is applied in a display device.

Abstract: The present disclosure provides a display panel and a display apparatus. The display panel includes: light-emitting elements which include a first light-emitting element that emits light of a first color having a wavelength ranging from ?1 to ?2, a second light-emitting element that emits light of a second color having a wavelength ranging from ?3 to ?4, and a third light-emitting element that emits light of a third color having a wavelength ranging from ?5 to ?6; and first to third capping layers respectively covering light-exiting sides of the first to third light-emitting elements. At least one of the first to third capping layers contains an ultraviolet light absorber that can absorb light having a wavelength ranging from 380 nm to 410 nm with an absorption rate greater than or equal to 20%.

Abstract: A display device includes an eyeball tracking inductor, a display panel and a processor, where the processor is electrically connected to the eyeball tracking inductor and the display panel separately; the eyeball tracking inductor is configured to identify user eyeball image information; the processor is configured to determine a gaze region and a split view region of a user viewing the display panel, according to the user eyeball image information, control the gaze region to be displayed at a first resolution, and control the split vision region of the display panel to be displayed at a second resolution, where the first resolution is greater than the second resolution.

Abstract: Provided are a display panel and a display device. The display panel includes multiple light-emitting devices. Each of the multiple light-emitting devices includes a red light-emitting device, a green light-emitting device and a blue light-emitting device. The red light-emitting device includes a red light-emitting layer, a peak wavelength of a red spectrum emitted by the red light-emitting device is ?11, and a peak wavelength of an intrinsic emission spectrum of a red light-emitting material in the red light-emitting layer is ?12. The green light-emitting device includes a green light-emitting layer, a peak wavelength of a green spectrum emitted by the green light-emitting device is ?21, and a peak wavelength of an intrinsic emission spectrum of a green light-emitting material in the green light-emitting layer is ?22. ?1=?11??12, ?2=?21??22.

Abstract: A compound having a structure represented by Formula I, and an organic electroluminescent device and an electronic apparatus including the same. The compound may be used as a hole transport material of an organic electroluminescent device. The compound provided by the present disclosure has a shallow LUMO, an appropriate HOMO energy level and a high triplet energy level ET, and can effectively improve hole transport ability, and block electron transition and exciton transport; meanwhile, the compound has high electron mobility, and excellent thermal stability and thin film stability. The compound provided by the present disclosure is used as the hole transport material of an organic electroluminescent device, so that the material has good solubility and appropriate mobility and the inter-pixel cross-talk is effectively avoided, which is conducive to improving light emitting efficiency and lifetime of the device.

Abstract: The present disclosure provides an organic compound, an electron transport material, and an application thereof. The organic compound has a structure as shown in Formula I. Design of molecular structure and substituents enables it to undergo tridentate coordination or tetradentate coordination with metal, and more stably and firmly combination with metal, so that it has stronger stability and longer working life when used as an electron transport material, which effectively solves a problem of rising drift voltage. The organic compound has greater rigid distortion, which can suppress an increase of intermolecular attraction and prevent it from forming a planar structure to cause excessive intermolecular attraction. The organic compound is used as an electron transport material, and can be applied to an electron transport layer and/or an electron injection layer of an OLED device, which can effectively improve luminous efficiency and working life of the device, and reduce turn-on voltage.

Abstract: The present disclosure provides a compound for a display panel. The compound includes elements selected from O, S or N, electron-donor groups and electron-accepting groups. The OLED device in the display panel includes an anode, a cathode, and at least one organic thin film layer between the anode and the cathode. The organic thin film layer includes a light emitting layer, the light emitting layer includes the compound of the present disclosure, and the compound is used to be any one of a host material, a doping material, and a co-doping material. The compound reduces energy level difference between singlet and triplet states ?EST through design of the compound molecular structure. The compound realizes an efficient reverse intersystem crossing process, has typical TADF characteristics, and can be used as a light-emitting layer material of an OLED device to improve luminous efficiency and working life.

Abstract: An organic compound has a structure as shown in Formula (I). The compound has a phosphorus-oxygen five-membered ring combined with a five-membered ring as an electron acceptor unit. The compound has a high luminous efficiency and a lower material cost than phosphorescent metal complexes. The compound can be built into a stack structure of organic optoelectronic device, such as OLED. The resultant organic optoelectronic device includes an anode, a cathode, and at least one organic thin film located between the anode and the cathode, the organic thin film contains the compound as shown in Formula (I).

Abstract: The present disclosure provides an organic compound, having a structure represented by Formula 1, in which L1, L2, and L3 are each independently selected from a single bond, or C4-C30 arylene; X1, X2, and X3 are each independently selected from CRa, or N, and at least one of X1, X2, or X3 is N; Ar1, Ar2, and Ar3 are each independently selected from C6-C60 aryl, a structure represented by Formula 2, or a structure represented by Formula 3; at least one of Ar1, Ar2, or Ar3 is the structure represented by Formula 2, and at least one of Ar1, Ar2, or Ar3 is the structure represented by Formula 3; X4, X5, X6, and X7 are each independently selected from CRb, or N, and at least one of X4, X5, X6, or X7 is N; # indicates a bonding position; and Ra and Rb are specifically defined in the specification.

Abstract: The present disclosure relates provides an compound represented by Chemical Formula 1, in which Ar1, Ar2, Ar3 and Ar4 are C6-C40 aryl, or C5-C40 heteroaryl; R1 and R2 are —C(R)2—, —N(R)—, —O—, or —S—; X1, X2 and X3 are C or N; L1 and L2 are phenylene, naphthylene, or biphenylene; Y1 and Y2 are each an electron-withdrawing group selected from a N-containing heterocyclic group, or a cyano-containing group. The compound of the present disclosure has bipolar characteristics of simultaneously transmitting holes and electrons. The bipolar transmission host is beneficial to charge transmission balance in the light-emitting layer, and can widen the exciton recombination region, to simplify the device structure and improving device efficiency. The present disclosure further provides a display panel and a display apparatus.

Abstract: An organic compound can be applied as a host material for an OLED display device. The compound has a structure represented by Formula (I): a and b, being independently 1, 2 or 3, respectively represent the numbers of electron donor D and electron acceptor A; c and d, independently being 0, 1, or 2, respectively representing the numbers of group L1 and group L2. D, L1 and L2 are each alkyl, cycloalkylene, heterocyclic group, aryl, heteroaryl, fused aryl, or fused heteroaryl; and A is selected from nitrogen-containing heterocyclic substituents, cyano-containing substituents, triaryl-boron-derived substituents, and phosphoxy-containing substituents. The compound has a D-(?)-?-(?)-A structure with bipolarity, and the ? bond can interrupt an intramolecular charge transfer between D and A, so that the excited state is limited to a local excited state in moiety of D or A, and the compound has a small excited-state dipole moment.

Abstract: A display panel comprises a light-emitting element and a capping layer disposed at a light exit side of the light-emitting element. The light-emitting element includes a first light-emitting element, a second light-emitting element and a third light-emitting element emitting a first color light, a second color light and a third color light, respectively. The capping layer includes a first capping layer and a second capping layer stacked together. The second capping layer includes a first sub-capping layer, a second sub-capping layer and a third sub-capping layer correspondingly disposed at light exit sides of the first light-emitting element, the second light-emitting element and the third light-emitting element, respectively. At least one of the first sub-capping layer, the second sub-capping layer, or the third sub-capping layers is configured to have a larger refractive index of light emitted by the corresponding light-emitting element than light emitted by other light-emitting elements.

Abstract: The present disclosure provides a compound used as the CPL material. The compound has a structure as shown in chemical formula I, in which L1 is selected from the group consisting of a substituted or unsubstituted C6-C30 arylene, C3-C30 heteroarylene, a substituted or unsubstituted C10-C60 fused arylene, and a substituted or unsubstituted C10-C60 fused heteroarylene; Ar1 is selected from the group consisting of a substituted or unsubstituted C6-C30 arylene, C3-C30 heteroarylene, a substituted or unsubstituted C10-C60 fused arylene, and a substituted or unsubstituted C10-C60 fused heteroarylene; n is 1 or 2, and when n is 2, the two Ar1 are identical or different; R1, R2, R3 and R4 are each independently selected from the group consisting of hydrogen, and a substituted or unsubstituted aryl or fused aryl, R1 and R2 are optionally bonded to form a ring, and R3 and R4 are optionally bonded to form a ring.

Abstract: The present disclosure provides an azapyrene compound, a display panel and a display apparatus. The compound has a structure represented by Chemical Formula 1, in which X1-X4 are each a nitrogen atom or C—Ra, one or two of X1-X4 are a nitrogen atom; only one of X1 and X2 is a nitrogen atom; only one of X3 and X4 is N; Ra is mainly hydrogen, deuterium, or C1-C10 alkyl; Ar1 and Ar2 are each C6-C30 aryl or C3-C30 heteroaryl; m and n are 0, 1, 2, or 3, and when one of m and n is 0, the other one of m and n is not 0; and L1 and L2 are a single bond, C6-C30 arylene, or C3-C30 heteroarylene; p and q are 0, 1, or 2. The compound can be used as a CPL material to improve external quantum efficiency (EQE) of an organic light-emitting device and light-emitting efficiency.

Abstract: An organic light-emitting diode (OLED) display panel and an OLED display device are provided. The OLED display panel comprises a first substrate; a first electrode layer disposed on the first substrate and including a plurality of first electrodes; a hole transport layer disposed on a surface of the first electrode layer far away from the first substrate, and formed by a first hole transport material and a second hole transport material having different carrier mobility; a plurality of light-emitting devices disposed on a surface of the hole transport layer far away from the first electrode layer and arranged in correspondence with the plurality of first electrodes respectively; an electron transport layer disposed on a surface of the plurality of light-emitting devices far away from the hole transport layer; and a second electrode layer disposed on a surface of the electron transport layer far away from the plurality of light-emitting devices.

Abstract: The present invention relates to an OLED display panel comprising a first electrode, and a first hole transporting layer, a second hole transporting layer, and an electron transporting layer stacked on the first electrode, and a second electrode formed; at least two light emitting units are provided on the second hole transporting layer; the electron transporting layer covers the light emitting units; the material of the electron transporting layer fills the gap(s) between adjacent light emitting units; the first hole transporting layer comprises a hole transporting material which has a hole mobility of 9×10?5-5×10?4 cm2/V·S, and a solubility of 10 g/L or more in a cleaning solvent at 25° C. The present invention utilizes a hole transporting material having a specific hole mobility as a common hole transporting layer, avoiding crosstalks between different pixels.

Abstract: An organic compound, a display panel, and a display apparatus are provided. The organic compound has a structure represented by Chemical Formula 1, in which R1 to R8 are each independently selected from hydrogen, substituted or unsubstituted C6-C18 aryl, pyridyl, quinolyl, C1-C16 alkyl, C1-C16 alkoxy, hydroxyl, and carboxyl; m, n, x and y each independently represent 0 or 1, where m+x?1, n+y?1, m+n?1, and x+y?1; L1 and L2 are each independently selected from substituted or unsubstituted C6-C30 arylene, substituted or unsubstituted C5-C30 heteroarylene, substituted or unsubstituted C1-C8 alkylene, and substituted or unsubstituted C1-C8 alkyleneoxy; Ar1 and Ar2 each independently have a structure shown in Chemical Formula 2, in which R21 to R27 are each independently selected from hydrogen, substituted or unsubstituted C6-C18 aryl, pyridyl, quinolyl, C1-C16 alkyl, C1-C16 alkoxy, hydroxyl, and carboxyl.

Abstract: Provided are a display panel, a display device and a display method of the display panel. The display panel includes a pixel array, where the pixel array includes a plurality of pixel groups and each of the plurality of pixels group includes first-type pixel units and second-type pixel units; and a drive circuit configured to provide a drive signal for the pixel array. A display mode of the display panel includes a high-definition display mode in which within one-frame time, the first-type pixel units and the second-type pixel units collectively display a same to-be-displayed picture; a stereoscopic display mode in which the first-type pixel units display a user's left-eye picture within first time and the second-type pixel units display a user's right-eye picture within second time; and a power saving display mode in which the first-type pixel units display a picture and the second-type pixel units do not perform displaying.