Boe Technology Group Co., Ltd.

Hefei Xinsheng Optoelectronics Technology Co., Ltd.

Institute of Pharmacology and Toxicology Academy of Military Medical Sciences Pla China

Yong Qian

Peng Wu

Jideng Zhou

Guodong Liu

Chunsheng Gao

Meiyan Yang

Yuli Wang

Jingjing Dai

Li Shan

Yan Qiu

A display substrate, a test method for the display substrate and a display device are provided. The display substrate includes a base substrate, a touch detection circuit layer and a pixel driving circuit layer. The display substrate includes a display region and a non-display region surrounding the display region. The touch detection circuit layer includes a driving signal line and a dummy electrode line arranged side by side in the display region and insulated from each other, and both the driving signal line and the dummy electrode line extend from the display region to the non-display region. The non-display region is provided with a plurality of test pads including a first pad electrically connected to the driving signal line and a second pad electrically connected to the dummy electrode line.

Display substrate, test method for the same and display device

The invention relates to a drug sustained-release composition, particularly a sustained-release composition comprising metoprolol and preparation method thereof. The invention also relates to a combination product comprising a sustained-release composition comprising metoprolol and a pharmaceutical composition comprising hydrochlorothiazide. The sustained-release composition comprising metoprolol according to the invention eliminates the phenomena of delayed release of such sustained-release compositions in the prior art, has a better drug release curve, and also have the advantages such as simple formula, easy operation, stable quality, strong controllability, and good reproducibility, and therefore have good application prospects.

Metoprolol sustained-release composition and preparation method thereof

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Beijing, China

Yong Qian