Abstract: A light-emitting substrate includes a driving circuit layer, a first light-emitting layer located on a side of the driving circuit layer, a second light-emitting layer located on a side of the first light-emitting layer away from the driving circuit layer, and a third light-emitting layer located on a side of the second light-emitting layer away from the driving circuit layer. The pixel circuit layer includes pixel circuits. The first light-emitting layer includes first light-emitting devices respectively coupled to the pixel circuits. The second light-emitting layer includes second light-emitting devices respectively coupled to the pixel circuits. The third light-emitting layer includes third light-emitting devices respectively coupled to the pixel circuits. Orthographic projections of a first light-emitting device, a second light-emitting device and a third light-emitting device on the driving circuit layer do not necessarily coincide with each other.

Abstract: Embodiments of the present disclosure provide a circuit board, a display apparatus, and a manufacturing method for a circuit board. The manufacturing method for the circuit board includes: providing a precursor substrate; forming seed patterns and an auxiliary seed pattern on a side of the precursor substrate, where the seed patterns are located in the patterned areas, the auxiliary seed pattern is located in the non-patterned area, and the seed pattern and the auxiliary seed pattern are separated from each other; and forming a pad at a position of the seed pattern and an auxiliary pattern at a position of the auxiliary seed pattern by an electroplating process.

Abstract: A chip on film includes: a flexible substrate; and a multilayer wiring structure disposed on the flexible substrate. The multilayer wiring structure includes a first wiring layer, a first insulation layer and a second wiring layer, which are sequentially arranged in a direction towards the flexible substrate the flexible substrate. The first wiring layer includes a first conductive material and the second wiring layer includes a second conductive material. The chip on film further includes: pins, at least part of which are in the first wiring layer; first via holes in the first insulation layer; and a second wire and a second wire leading portion in the second wiring layer, which are electrically connected to each other. More than one pin is electrically connected to the second wire leading portion through more than one first via hole, respectively.

Abstract: The present disclosure provides a display substrate, including: a base substrate; and a plurality of spacers on a side of the base substrate and each comprising at least one first sub-pattern and at least one second sub-pattern stacked along a normal direction of the base substrate, the first sub-pattern being made of an organic material and the second sub-pattern being made of an inorganic material. The present disclosure also provides a method for manufacturing the display substrate and a display device.

Abstract: The present disclosure relates to a liquid crystal phase shifter, a method for operating the liquid crystal phase shifter and an antenna. The liquid crystal phase shifter includes a first substrate, a second substrate, a liquid crystal layer and at least one adjustment unit. The one of the at least one adjustment unit includes a first electrode, a second electrode and a control circuit. The control circuit comprises a driving sub-circuit, a switching sub-circuit and a reset sub-circuit. The driving sub-circuit is configured to input a voltage to the first electrode. The reset sub-circuit is configured reset a voltage of a control terminal of the driving sub-circuit.

Abstract: A display panel and a display device are provided. The display panel includes a plurality of display units, each display unit includes a transparent area, and the display panel further includes a base substrate and a composite functional layer. The composite functional layer is provided on a side of the base substrate and has a first through-hole formed therein, and the first through-hole is provided in the transparent area. The composite functional layer includes a composite transparent layer and a light-shielding layer. The composite transparent layer includes a plurality of transparent functional layers, and includes a light-transmitting part surrounding the first through-hole. An orthographic projection of the light-shielding layer on the base substrate covers an orthographic projection of at least a portion of the light-transmitting part on the base substrate.

Abstract: A servo control method for a multi-joint hydraulic manipulator based on adaptive sliding mode is provided. A motion trajectory of an end of the multi-joint hydraulic manipulator in a workspace is generated, and expected angular displacement, angular velocity and angular acceleration of individual joints are calculated. An actual angular displacement and an actual angular velocity of the individual joints under a current position-pose are calculated. Combined with a dynamic model of the manipulator, a driving force of individual joints is calculated. Based on the expected angular displacement, the actual angular displacement and the driving force, a sliding-mode surface is constructed. The adaptive law is updated to perform adaptive sliding-mode control for the manipulator. A system for implementing the servo control method is also provided.