Microsoft Technology Licensing, LLC

Nokia Technologies Oy

Samu Kallio

Max Lindfors

Somakanthan Somalingam

Ralf Wieser

Tero Maaranen

Toni Hemminki

A temperature of a display is evaluated from the image displayed. The device may be tested with various images or with various test patterns in order to obtain the heat generation response related to the image. For example, a bright image may generate more heat than a dark image. The heat generation response behavior is stored into a device memory. A heat radiation response behavior is also obtained with various test patterns. The display temperature is estimated using an image to be displayed with the predetermined heat generation and heat radiation responses. The ambient temperature may be used to improve the estimation.

Evaluation of a display temperature

A method, apparatus, and a computer program is provided. The method comprises: determining an ambient light value from ambient light data provided by at least one ambient light sensor, in dependence upon the spectral distribution of the ambient light data provided by the at least one ambient light sensor and a manufacturer of the at least one ambient light sensor.

Ambient light detection and data processing

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Espoo, Finland

Samu Kallio