Figure 1 shows a series of green squares on the in-focus screen and faded-out red boxes on the other displays.

图 1 在获得焦点的屏幕中显示一系列绿色正方形，并在其他显示屏中显示逐渐淡出的红框。

youdao

In order to view the cartoon, the student has to focus on the screen to control the viewing of the cartoon.

FORBES: Applying A Brain-Computer Interface For Children With ADHD

Otherwise, it's aimed more at the casual carry-around crowd with a 40 percent smaller body, touch-screen focus selection, control ring exposure adjustment, a 3-inch 920k dot TFT LCD, art filters (in the smartphone app), image (or film) stabilization and 1080P 30 fps HD video.

ENGADGET

In order to gain a better grip on the app's appearance in the land of mobile desserts, it teamed up with Samsung to focus on a single screen, and a single screen resolution.

ENGADGET: Flipboard beta coming to all Android devices soon, hopes to handle resolution variety with poise (updated: it's live!)