The circuit in Figure 1 uses only five I/O lines to drive a dot- or bar-graph display of 20 LEDs. Although this version of the design uses a small and inexpensive one-time-programmable microprocessor, ...

This circuit uses two National Semiconductor LM3914 dot/bar-display-driver ICs to implement a two-digit, 0 to 5V LED voltmeter that mimics a subranging flash ADC. An LED bar graph comprising five LEDs ...

When it comes to big, bright visuals, nothing beats direct-view LED. Long relegated to select high-profile applications like stadium jumbotrons and Times Square billboards, recent years have seen ...

With Apple's next-generation iPad expected to adopt much higher resolution displays, the electronics maker and its component suppliers are reportedly challenged with designing new backlight solutions ...