Képerny

Képerny is not a standard term in most technical vocabularies. In Hungarian, the word for screen or display is képernyő; when the form képerny appears, it is often a truncated form or a loaned usage rather than a separate concept. The following overview treats the general idea of a screen as a display device in information technology.

A screen or display is an output hardware component that presents visual information produced by a computer, video device, or sensor. Screens render images by controlling an array of pixels arranged in a grid. Modern screens use technologies such as LCD (liquid crystal display) with LED backlighting, OLED (organic light-emitting diode), and increasingly microLED. They vary in size, resolution, aspect ratio, color depth, refresh rate, luminance, and viewing angles. Touchscreens combine display functions with input sensing, enabling direct interaction.

Screens can be standalone monitors, built into laptops and tablets, or integrated into smartphones, televisions, and other devices. Ongoing developments include higher pixel densities, wider color gamuts, high dynamic range (HDR), adaptive synchronization for smoother motion, and improvements in efficiency. Ergonomics and health considerations emphasize appropriate brightness, contrast, blue-light management, and suitable viewing distance to reduce eye strain.

In applications, screens enable graphical user interfaces, multimedia playback, and real-time visualization across personal computing, professional work, and digital signage. The term screen thus encompasses a broad range of display technologies and form factors used to present visual information to users.