LG Display Co. is in talks to supply Panasonic Corp. with big-screen TV panels using its next-generation technology, sources familiar with the matter said.

LG Display, which is already a provider of smaller screens to Apple Inc., is seeking to boost adoption of organic light-emitting diode technology, the sources said, asking not to be identified because the talks are private. The Seoul-based company is also seeking new customers in Japan, the sources added.

OLED technology, which offers a brighter and sharper picture than the more popular liquid-crystal displays, has struggled to win customers amid higher prices and sluggish demand for TVs.

LG Electronics Inc., which owns about 38 percent of LG Display, is the biggest maker of sets using OLED, while chief competitor Samsung Electronics Co. focuses on LCD technology for its ultrahigh-definition screens.