Boe Technology Group Co., Ltd.

Beihang University

Compuware Corporation

Yuliang Li

Jiangnan Lu

Hongge Li

Kenn Min Chong

A pixel circuit configured to drive a light-emitting element and a driving method therefor, and a display substrate, the pixel circuit comprising: a first switch sub-circuit configured to input, under the control of a first control signal line, a data signal of a data signal line to a first node; a second switch sub-circuit configured to input, under the control of a second control signal line, a first signal of a first signal line to a second node; a driving sub-circuit configured to drive, under the control of the potential of the first node, the light-emitting element to emit light; and a memory sub-circuit configured to store a threshold voltage of the driving sub-circuit before the second switch sub-circuit is turned on in each work cycle of the pixel circuit.

Pixel circuit configured to drive light-emitting element and driving method therefor, and display substrate

Systems and methods provide for quantifying the similarity between images that appear similar. Given a set of images, one image is selected as the base image, to which the remaining images are compared. One or more portions of the base image are selected for comparison and the color composition of these areas is calculated. Then, the color compositions are examined to quantify the similarity or difference between the images, which is assigned a score reflective of the quantitative similarity or difference. The results are displayed. These systems and methods allow, e.g, a website owner to check whether web pages have come through imperfectly across different browsers; the analysis identifies not just blatant errors, but even single-pixel shifts.

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Beijing, China

Yuliang Li