Abstract: Provided are an OLED display panel and a preparation method thereof. The OLED display panel includes a light-shielding layer, a planarization layer, an anode layer, a light-emitting material layer, and a cathode layer. The light-shielding layer includes a light-shielding structure and a first structure. The anode layer includes an anode and a third structure. The first structure and the third structure disposed in a non-light-emitting region of the OLED display panel are electrically connected. The light-emitting material layer is on a side of the anode layer away from a substrate. The cathode layer is on a side of the light-emitting material layer away from the substrate. In the non-light-emitting region, the first structure is connected to a fixed value voltage. The light-emitting material layer is provided with a first via hole. The cathode layer is electrically connected to the third structure through the first via hole.

Abstract: The present application provides a display panel including: a substrate, a thin film transistor layer, an insulation layer, an anode layer, an electron transport layer, and a cathode layer. The thin film transistor layer includes an auxiliary transistor. A first cathode auxiliary hole is defined in the insulation layer. The anode layer includes a connection portion disposed in the first cathode auxiliary hole and electrically connected to the auxiliary transistor. The electron transport layer includes an electron transport portion disposed to correspond to the connection portion. The cathode layer includes a cathode auxiliary electrode connected to the electron transport portion. The present application can prevent an issue of uneven brightness due to voltage decrease and improves quality of the display panel.

Abstract: The display panel includes a base substrate, an inorganic layer, a thin film transistor layer, and an anode layer. The inorganic layer is disposed on the base substrate, the thin film transistor layer is disposed on the inorganic layer, the thin film transistor layer is defined with a first opening, and the first opening exposes a part of the inorganic layer. The thin film transistor layer includes a source-drain layer, the anode layer is partially positioned on the part of the inorganic layer exposed by the first opening, and the anode layer is electrically connected to the source-drain layer.

Abstract: A method for manufacturing a color filter is provided, including: preparing a photomask comprising a plurality of pixel units, the pixel units each comprising red, green, and blue color resist layers; preparing a first substrate coated with a photosensitive polyester layer; exposing the first substrate by a light source irradiating through the photomask, so that color resist elements of different colors are formed on the first substrate from reaction of light passing respectively through the red, green, and the blue color resist layers with the photosensitive polyester layer; and developing the first substrate and washing part of the first substrate that is not exposed. The method for manufacturing the color filter is simple in technique, thereby effectively reducing the production cost of the color filter.

Abstract: A method for manufacturing a color filter is provided, including: preparing a photomask comprising a plurality of pixel units, the pixel units each comprising red, green, and blue color resist layers; preparing a first substrate coated with a photosensitive polyester layer; exposing the first substrate by a light source irradiating through the photomask, so that color resist elements of different colors are formed on the first substrate from reaction of light passing respectively through the red, green, and the blue color resist layers with the photosensitive polyester layer; and developing the first substrate and washing part of the first substrate that is not exposed. The method for manufacturing the color filter is simple in technique, thereby effectively reducing the production cost of the color filter.

Abstract: The present invention provides a stepper automatic filter replacement device, employed to clamp at least one filer, wherein the stepper automatic filter replacement device comprises a support, a rotation shaft installed at the support, a driving element and at least one clamping jaw, and the at least one clamping jaw is employed to clamp the filter; an extending arm is installed at periphery of the rotation shaft corresponding to the at least one clamping jaw, and the at least one clamping jaw is installed on the extending arm, and the driving element drives the rotation shaft to drive the extending arm to rotate, and to drive the filter to rotate. The present invention further provides a stepper.