Abstract: Provided is an organic light-emitting diode display substrate, including: a source/drain layer, a planarization layer and an anode layer which are laminated in sequence, wherein the source/drain layer includes at least one pair of first signal lines; the anode layer includes a common power line, wherein the common power line is provided with vent holes; overlapping areas between two first signal lines in each pair of the first signal lines and a projection pattern of the vent hole are equal, the overlapping area being greater than 0, wherein the projection pattern of the vent hole is a pattern of an orthographic projection of the vent hole in the common power line on the source/drain layer. A display panel and a display device are also provided.

Abstract: A rare-earth magnet according to an embodiment of the present invention comprises: a rare-earth magnet precursor including a composition of (R1(1-x)R2x)yFe(100-y-z-v-w)CozBvTMlw in which R1 comprises at least one of Nd or Pr, and R2 comprises Ce; and a diffusion metal including a composition of (LRE(100-p-q)HREp)TM2q, and diffused on the surface of the rare-earth magnet precursor, wherein the LRE in the diffusion metal can comprise light rare earth including Y, and the HRE can comprise heavy rare earth.

Abstract: The present invention discloses a guard assembly for a saw blade, which includes an inner guard portion and an outer guard portion. The inner and outer guard portions define a containing space therebetween. A circular saw blade includes two parallel sides and a rotating axis perpendicular to the two sides. At least a portion of the saw blade is located within the containing space. The outer guard portion is pivotally connected with the inner guard portion about a pivotal axis which is substantially parallel to each side of the blade. The improved guard assembly, which can be opened laterally, is convenient to change the saw blade and to clean the inner of the guard.

Abstract: The present invention discloses a guard assembly for a saw blade, which includes an inner guard portion and an outer guard portion. The inner and outer guard portions define a containing space therebetween. A circular saw blade includes two parallel sides and a rotating axis perpendicular to the two sides. At least a portion of the saw blade is located within the containing space. The outer guard portion is pivotally connected with the inner guard portion about a pivotal axis which is substantially parallel to each side of the blade. The improved guard assembly, which can be opened laterally, is convenient to change the saw blade and to clean the inner of the guard.

Abstract: A tile cutter which has increased cutting capability and with good portability at the same time, comprises a support frame, a saw unit mounted on the support frame, at least one rail and a worktable assembly. The at least one rail is fixed on the support frame and comprises a longitudinal axis. The worktable assembly comprises at least a first worktable and a second worktable, support surfaces of which are in the same plane. The second worktable is slidably installed on the first rail and the first worktable is installed on the second worktable.

Abstract: The present invention discloses a guard assembly for a saw blade, which comprises an inner guard portion and an outer guard portion. The inner and outer guard portions define a containing space therebetween. A circular saw blade includes two parallel sides and a rotating axis perpendicular to the two sides. At least a portion of the saw blade is located within the containing space. The outer guard portion is pivotally connected with the inner guard portion about a pivotal axis which is substantially parallel to each side of the blade. The improved guard assembly, which can be opened laterally, is convenient to change the saw blade and to clean the inner of the guard.

Abstract: The present invention is to provide a tile cutter in simple configuration having a locking device of dual locking functions. The tile cutter comprises a support frame, a cutting device mounted on the support frame, at least one rail disposed on the support frame, a worktable assembly slidably installed in or on a first rail of the at least one rail and a water tray. The first rail has a longitudinal axis. The worktable assembly comprises a first worktable and a second worktable. One of the support frame and the water tray is mounted or placed on the other one of the support frame and the water tray. A locking device is mounted between the first worktable and the second worktable. The locking device comprises a first locking portion and a second locking portion.

Abstract: A tile cutter which has increased cutting capability and with good portability at the same time, comprises a support frame, a saw unit mounted on the support frame, at least one rail and a worktable assembly. The at least one rail is fixed on the support frame and comprises a longitudinal axis. The worktable assembly comprises at least a first worktable and a second worktable, support surfaces of which are in the same plane. The second worktable is slidably installed on the first rail and the first worktable is installed on the second worktable.