摘要:
Disclosed are an optical detection method and an optical detection apparatus for a fatigue state of a user, and an optical detection device, this application relates to the field of detection technology, and is for improving accuracy of detection of the fatigue state. An optical detection method includes: irradiating eyes of the user with an infrared light; obtaining an intensity of an infrared light reflected by the eyes of the user; and determining whether the user is in a fatigue state based on the intensity of the reflected infrared light.
摘要:
A method for manufacturing the OLED includes: forming an anode, a cathode layer and an intermediate layer; forming a patterned first organic material layer on the cathode layer; forming a patterned second organic material layer on the first organic material layer using a material different from that of the first organic material layer, wherein a projection of the first organic material layer in a direction perpendicular to a major plane of the OLED overlaps with a projection of the second organic material layer in the direction; and forming an auxiliary electrode on the cathode layer, wherein a projection of the auxiliary electrode in the direction perpendicular to the major plane of the OLED does not overlap with the projections of the first organic material layer and the second organic material layer in the direction.
摘要:
The present invention relates to the field of organic electroluminescent technology, particularly relates to an aromatic amine derivative, its preparation method, uses and organic electroluminescent devices. The technical aim of the present invention is to improve the film forming ability and the redox repeatability. The aromatic amine derivative has the structure of formula I, wherein, R1, R2, R3 and R4 each independently represent a hydrogen, a substituted or unsubstituted C1-C40 alkyl, a substituted or unsubstituted C1-C40 alkoxy, a substituted or unsubstituted C3-C40 cycloalkyl, a substituted or unsubstituted C6-C50 aryl group, a substituted or unsubstituted C3-C50 heteroaryl containing one or two heteroatoms selected from N, O and S, or a substituted or unsubstituted C10-C40 fused aryl group formed together with the phenyl group linked therewith; wherein, m, n, p and q each independently represent 0, 1, 2, 3, 4 or 5; the substituents are one or more groups selected from the group consisting of a halogen, a C1-C10 alkyl, a C1-C10 alkoxy, a C3-C20 cycloalkyl, a C6-C20 aryl group or a C4-C20 heteroaryl group. The present invention may be applied in organic electroluminescent devices.
摘要:
The present disclosure relates to organic electroluminescent materials and organic electroluminescent devices, in particular, discloses a compound of formula (1), wherein R1, R2, R3 and R4 are each independently selected from hydrogen, a substituted or unsubstituted C1-20 alkyl, a substituted or unsubstituted C3-20 cycloalkyl, a substituted or unsubstituted aromatic hydrocarbyl, or a substituted or unsubstituted aromatic heterocyclic group; and at least one of R1, R2, R3 and R4 contains a group having a hole-transporting ability; and at least one of R1, R2, R3 and R4 contains a group having an electron-transporting ability; A and B each independently represent hydrogen, a substituted or unsubstituted, fused aromatic ring, or a substituted or unsubstituted, fused heteroaromatic ring containing a heteroatom(s) selected from O, N and S.
摘要:
The present disclosure provides an electroluminescent device, its manufacturing method, a display substrate and a display device. The electroluminescent device includes a substrate, and a pixel defining layer arranged on the substrate. A pixel aperture matrix is formed in the pixel defining layer, at least one connection channel is formed on the pixel defining layer, an electroluminescent layer in a predetermined color is formed in each pixel aperture of the pixel aperture matrix, and the connection channel is configured to connect at least two pixel apertures of the pixel aperture matrix in an identical row or column and corresponding to the electroluminescent layers in an identical color.