Integrated thermal spreading

摘要

Techniques are provided for removing thermal gradients from an organic light emitting diode (OLED) display. In one embodiment, an OLED display device includes a thermally conductive layer placed between electronic components housed within the device and the OLED display. Heat given off by the electronic components is transferred from warm to cold regions of the thermally conductive layer to create a more uniform ambient temperature across the back of the OLED display. Some embodiments indicate a position of the thermally conductive layer within layers of an OLED display stack (e.g., between a glass substrate and polyimide layer). Some embodiments include a specific range of thermal conductivities and/or thicknesses desired for the thermally conductive layer.

主权项

1. An organic light emitting diode (OLED) display device comprising:
an OLED display panel; a thermally conductive layer disposed adjacent the OLED display panel, wherein the thermally conductive layer has a thickness of approximately 20 microns to 500 microns and is configured to transfer heat from a relatively higher temperature region of the OLED display panel to a relatively lower temperature region of the OLED display panel; and a substrate, wherein the thermally conductive layer is disposed over the substrate and wherein the OLED display panel is disposed over the thermally conductive layer.