Abstract: An apparatus for testing a flexible screen. The apparatus for testing a flexible screen includes a slide rail, a reel, a clamping module and a drive module. The reel is fixed to one end of the slide rail. The axial direction of the reel is perpendicular to the extension direction of the slide rail. The flexible screen includes a first end and a second end which are disposed opposite to each other. The reel is configured to fix the first end of the flexible screen and rotate to drive the flexible screen to fit to the reel and coil around the reel. The clamping module is configured to clamp the second end of the flexible screen. The reel is further configured to rotate to drive, through the flexible screen, the clamping module to slide along the slide rail towards the reel.

Abstract: A method for Gamma debugging. The method for Gamma debugging is applicable to a display panel including a first display area and a second display area. A light transmittance of the first display area is greater than that of the second display area. The method includes: selecting, in the second display area, a test area having a same shape and size as the first display area; obtaining a first present brightness value when the test area corresponds to a specified register value under a specified grayscale; determining a plurality of first target brightness values when the first display area corresponds to a plurality of register values under the specified grayscale, according to the first present brightness value and a linear relationship between register values and brightness of the display panel; and performing Gamma debugging on the first display area according to the first target brightness values.

Abstract: A support strip and a method of new tensioning. The support strip includes a support segment and a predetermined cutting segment. Each of two ends of the support segment is connected with the predetermined cutting segment in a length direction of the support strip. The support segment includes a support body and a covering portion. The support body extends in a length direction. The covering portion is located at a first side of the support body. A second side of the support body is opposite to the first side in a width direction perpendicular to the length direction. The predetermined cutting segment comprises an offset-compensating portion. A first side edge of the offset-compensating portion extends in the length direction. A second side edge of the offset-compensating portion is inclined from the second side to the first side.

Abstract: A method for manufacturing a display panel including a display area, a hole area and a transition area between the display area and the hole area. The method includes: providing a semi-finished product of the display panel, including a substrate and a partition ring disposed around the hole area; forming a desorption layer on the surface of the substrate and in the hole area; forming a luminescent structure layer in the display area and the transition area on the side of the substrate, and a luminescent structure layer on the surface of the desorption layer away from the substrate and in the hole area, a portion of the luminescent structure layer in the transition area being partitioned by the partition ring; sublimating the material of the desorption layer to remove a portion of the luminescent structure layer in the hole area.

Abstract: A flexible screen support device and a flexible display terminal are provided. The flexible screen support device includes: a rotating assembly including a rotation shaft; a first housing and a second housing respectively connected to the rotating assembly; and a fixing piece, located on one side, away from the rotating assembly, of the first housing and the second housing. At least one of the first housing and the second housing rotates around the rotating assembly to make the fixing piece bend or flatten, and a horizontal length of a side surface, perpendicular to the rotation shaft, of the fixing piece in a flattened state is equal to a length of the side surface, which is a curved surface, of the fixing piece in a bent state.

Abstract: A display panel and a display device. The display panel has a display area and a packaging area located on an outer periphery of the display area, and the display panel includes: an array substrate provided with pixel units distributed in an array and corresponding to the display area; the cover plate disposed opposite to the array substrate, the cover plate including a first substrate, a signal wire layer and an insulating layer formed on the first substrate, wherein the insulating layer covers the signal wire layer, wherein the signal wire layer includes a plurality of touch electrodes and a signal wire electrically connected to the touch electrodes and the signal wire is at least partially located in the packaging area; a packaging adhesive layer disposed between the cover plate and the array substrate to bond the cover plate and the array substrate.

Abstract: A display panel, a display apparatus and a method for preparing the display apparatus. The display panel includes: a fingerprint recognition region; a display region arranged as at least partially surrounding the fingerprint recognition region; an active layer arranged on a side of the substrate and comprising a plurality of active units distributed in an array on the substrate; and a light blocking layer arranged on a side of the active layer facing the substrate and arranged in the fingerprint recognition region. The light blocking layer includes a plurality of light blocking units, and along a direction perpendicular to the display panel, orthographic projections of the plurality of light blocking units on the substrate cover orthographic projections of the plurality of active units on the substrate.

Abstract: An organic electroluminescent device and a display apparatus, where the organic electroluminescent device includes an anode functional layer, a first electron blocking layer, a second electron blocking layer, a light-emitting layer and a cathode functional layer; the first electron blocking layer includes a red light electron blocking layer and a green light electron blocking layer, which are disposed side by side, and the second electron blocking layer is a blue light electron blocking layer; a HOMO energy level of a red light electron blocking material in the red light electron blocking layer and a HOMO energy level of a green light electron blocking material in the green light electron blocking layer are both lower than a HOMO energy level of a blue light electron blocking material in the blue light electron blocking layer.

Abstract: A Gamma debugging method, apparatus and device. The method includes: determining a target display parameter of a display module at an ith gray scale binding point according to a target display parameter of the display module at a first gray scale binding point and a preset Gamma mapping relationship, controlling the display module to display an initial gray scale picture according to the target display parameter at the ith gray scale binding point, and collecting an actual display parameter of the display module at the ith gray scale binding point; and adjusting, under a condition that a difference between the actual display parameter at the ith gray scale binding point and the target display parameter at the ith gray scale binding point goes beyond a preset deviation threshold range, a data signal parameter corresponding to the ith gray scale binding point.

Abstract: An array substrate and a display panel. The array substrate includes: a substrate; a patterned shielding layer, having a fixed potential, arranged on one side of the substrate, and includes multiple shielding units connected to each other; and a driving circuit layer, arranged on one side of the shielding layer away from the substrate and comprising multiple driving transistors. An orthographic projection of each of the plurality of driving transistors projected on the shielding layer at least partially covers a corresponding one of the shielding units.

Abstract: A method for gamma debugging, an apparatus for gamma debugging and a device for gamma debugging. The method includes: acquiring a first voltage difference value between a first gray scale binding point and a second gray scale binding point of a first display panel at a first brightness level; performing gamma debugging on a second display panel at the first brightness level, to determine a voltage value corresponding to the first gray scale binding point of the second display panel at the first brightness level; and taking a difference between the voltage value corresponding to the first gray scale binding point of the second display panel at the first brightness level and the first voltage difference value as a first initial voltage value, to perform gamma debugging on the second display panel at the second gray scale binding point at the first brightness level.

Abstract: A pixel arrangement structure, a display panel, and a display apparatus. The pixel arrangement structure includes: a plurality of first pixel units each including at least two first sub-pixels, and at least two second sub-pixels and at least one third sub-pixel with different colors. A ratio of numbers of the at least two first sub-pixels, the at least two second sub-pixels and the at least one third sub-pixel is 2:2:1. At least two first sub-pixels and the at least two second sub-pixels are arranged alternately around the at least one third sub-pixel, and connecting lines between central points of the at least two first sub-pixels and central points of the at least two second sub-pixels form a polygon; a plurality of second pixel units each arranged between adjacent first pixel units along the row direction and the column direction.

Abstract: A laminating device adapted for laminating a curved cover plate and a flexible screen. The laminating device includes at least one elastic support assembly and a flexible supporting board for supporting the flexible screen. The flexible supporting board includes a top wall having a central spine portion and loading portions; The elastic support assembly is deformable so that the flexible supporting board can be deformed from a first state to a second state under a pressing effect of the curved cover plate; in the first state, the flexible supporting board is in a shape of a ridge and one of the loading portions is obliquely connected between the central spine portion and one of the side walls, so that in the process of the flexible supporting board being deformed from the first state to the second state, the inclination of the loading portion gradually decreases.

Abstract: A support structural member and a display device. The support structural member includes: a support frame, having a screen body support surface, in which the support frame includes a first support body and a second support body, the first support body and the second support body are connected to each other, and the second support body is enabled to move relative to the first support body in a first direction; a power unit, including a transmitting mechanism, a screen body connecting mechanism and a driver, in which the driver drives the second support body to move relative to the first support body in the first direction through the transmitting mechanism, and the driver drives the screen body connecting mechanism to move through the transmitting mechanism, so that the second support body and the screen body connecting mechanism move in the same direction in the first direction.

Abstract: A display panel defines a display region and a non-display region located around the display region, and includes: an array layer disposed in the display region and the non-display region; a metal wiring layer disposed in part of the array layer located in the non-display region; a touch control layer, which is arranged on the side of the metal wiring layer away from the array layer and comprises a plurality of touch leads, the plurality of touch leads extending from the display region to the non-display region; a plurality of functional film layers located between the array layer and the touch control layer and located in the display region; and a conductive structure located between the metal wiring layer and the touch control layer, the plurality of touch leads being electrically connected to the metal wiring layer by the conductive structure.

Abstract: A compensation method and device for a display panel. The compensation method for a display panel includes acquiring a plurality of test grayscales of a to-be-tested display panel, performing a grayscale extension on the test grayscales to determine a plurality of test mapping grayscales corresponding to the test grayscales; acquiring, by using a camera, actual display brightness of each of the test mapping grayscales and actual display chroma of each of the test mapping grayscales; and determining a grayscale compensation formula of each display region of the at least two display regions of the display panel according to target display brightness of each of the test mapping grayscales, target display chroma of each of the plurality of test mapping grayscales, the actual display brightness of each of the test mapping grayscales, and the actual display chroma of each of the test mapping grayscales.

Abstract: A gamma debugging method includes: according to a duty cycle and gamma data corresponding to a first display brightness level, and a duty cycle corresponding to a second display brightness level, or according to the duty cycle and the gamma data corresponding to the first display brightness level, and gamma data corresponding to the second display brightness level, determining maximum brightness corresponding to an inserted display brightness level and a duty cycle corresponding to the inserted display brightness level; and determining whether a binding-point grayscale at the inserted display brightness level is greater than a preset grayscale threshold, and when the binding-point grayscale at the inserted display brightness level is greater than the preset grayscale threshold, calculating, according to a preset calculation formula, a gamma register value corresponding to the binding-point grayscale at the inserted display brightness level.

Abstract: The present disclosure relates to display technologies, and particularly discloses an organic electroluminescent device. This organic electroluminescent device includes a light-emitting layer, the light-emitting includes an exciplex composed of a donor molecule and an acceptor molecule, and a wide band gap material for increasing the inter-molecular spacing between the donor molecule and the acceptor molecule. According to the device of the present disclosure, the degree of orbital overlap of HOMO and LUMO of the formed exciplex and the singlet-triplet energy level difference can be reduced, the reverse intersystem crossing rate (kRISC) of the exciplex host can be increased, the Föster energy transferred to the guest molecule can be enhanced, and the efficiency and the lifetime of the device can be improved.

Abstract: The present disclosure relates to the field of display technologies, and particularly discloses an organic electroluminescent device. The organic electroluminescent device has a first electrode, a second electrode, and an organic functional layer. The organic functional layer comprises a light-emitting layer. The light-emitting layer comprises at least a host material and a guest material. The host material comprises an exciplex composed of a donor molecule and a receptor molecule, wherein the donor molecule and/or the receptor molecule contains a large steric hindrance substituent group X for increasing an inter-molecular distance between the donor molecule and the receptor molecule, which enables to enhance Foster energy transfer to the guest material molecule, improve device efficiency, inhibit Triplet-Polaron Annihilate Annihilation (TPA), and prolong the device lifetime.

Abstract: Provided are a driver chip and a display apparatus. The driver chip includes a digital module, an analog module, and a decoupling capacitor. The digital module is configured to generate a digital signal. The analog module includes a reference voltage source and a Gamma voltage generation circuit, an output terminal of the reference voltage source is electrically connected to an input terminal of the Gamma voltage generation circuit, and the Gamma voltage generation circuit is configured to generate a Gamma voltage according to a reference voltage outputted by the reference voltage source. The decoupling capacitor is connected between the digital module and the output terminal of the reference voltage source.