Abstract: A detection method for a display screen is provided, including: emitting, by a light source, light onto a surface of a display screen to form a diffuse reflection, where the light source includes an initial first color channel value a1 and an initial second color channel value b1; measuring, by a detector, a first color channel value a and a second color channel value b of the reflected light; calculating a color breakup value lab of the reflected light by: lab=?{square root over ((a?a1)2+(b?b1)2)}; calculating, in response to (a+b) being not equal to 0, a hue value ? by: ?=|a+b|/(a+b); calculating a color breakup and hue quantization value ? of the reflected light by: ?=lab×?=|a+b|?{square root over ((a?a1)2+(b?b1)2)}/(a+b); and determining whether the display screen is qualified based on determining whether the color breakup and hue quantization value ? is within a predetermined quantization value range.

Abstract: An OLED display panel and a manufacturing method of the same are provided. The OLED display panel includes a base plate, a first electrode layer and a pixel definition layer on a first side of the base plate, a plurality of electroluminescent layers on the first electrode layer, a second electrode layer covering the pixel definition layer and the plurality of electroluminescent layers, an encapsulation layer covering the second electrode layer, a black matrix and a color filter layer on the encapsulation layer and a plurality of photosensitive fingerprint sensors on a second side of the base plate; a plurality of light-transmitting holes are arranged in the black matrix, and orthographic projections of the plurality of light-transmitting holes on the second electrode layer are in hollow-out regions of the second electrode layer, respectively; and the photosensitive fingerprint sensors are in the orthographic projections of the light-transmitting holes, respectively.

Abstract: A display panel (10), including a light-emitting device layer (11) and a color film layer (12) arranged on a light-emitting side of the light-emitting device layer (11), the light-emitting device layer (11) includes a plurality of light-emitting units (112); each light-emitting unit (112) includes one first sub-pixel (1122), one second sub-pixel (1124) and two third sub-pixels (1126); the color film layer (12) includes a black matrix (122) and a plurality of color film units (124) corresponding to the plurality of light-emitting units (112); each color film unit (124) includes a first color film (1242) corresponding to the one first sub-pixel (1122), a second color film (1244) corresponding to the one second sub-pixel (1124) and a third color film (1246) corresponding to the two third sub-pixels (1126); the black matrix (122) is located between any two of the first color film (1242).

Abstract: An OLED display panel and a manufacturing method of the same are provided. The OLED display panel includes a base plate, a first electrode layer and a pixel definition layer on a first side of the base plate, a plurality of electroluminescent layers on the first electrode layer, a second electrode layer covering the pixel definition layer and the plurality of electroluminescent layers, an encapsulation layer covering the second electrode layer, a black matrix and a color filter layer on the encapsulation layer and a plurality of photosensitive fingerprint sensors on a second side of the base plate; a plurality of light-transmitting holes are arranged in the black matrix, and orthographic projections of the plurality of light-transmitting holes on the second electrode layer are in hollow-out regions of the second electrode layer, respectively; and the photosensitive fingerprint sensors are in the orthographic projections of the light-transmitting holes, respectively.

Abstract: An OLED display substrate, a method of manufacturing the same and an OLED display apparatus are provided, and the display substrate includes a substrate base; a device layer including OLED light-emitting devices; an encapsulation layer on respective sides of the OLED light-emitting devices away from the substrate base; a black matrix layer on a side of the encapsulation layer away from the substrate base, the black matrix layer including openings; and a color filter layer on a side of the black matrix away from the substrate base, the color filter layer including color filters correspondingly provided on respective sides of the openings away from the substrate base, the color filters include working color filters and at least one common color filter; area of each common color filter on the substrate base is more than 50 times as large as area of any working color filter on the substrate base.