Samsung Display Co., Ltd.

Dae-gwang Jang

Seungjae Lee

Seongheon Cho

Kuk-hwan Ahn

Byung Ki Chun

A display device includes a display panel including pixels, driving chips applying data voltages to the pixels through channels; and a timing controller determining the data voltages output from the channels by each of the driving chips based on input image data, determining a load ratio of each of the driving chips based on the data voltages, generating a current temperature profile of a first pixel row based on the load ratio of each of the driving chips, generating a current temperature profile of a second pixel row based on the load ratio of each of the driving chips, and generating a two-dimensional temperature profile based on the current temperature profiles of the first pixel row and the second pixel row.

Display device and method of generating temperature profile of display device

Disclosed is an electronic device including a display layer which includes an active area for displaying an image and a peripheral area disposed adjacent to the active area, pixels each of which includes a driving transistor and a light emitting element, a memory that stores a plurality of maps, a driving controller connected to the memory and including a control unit. The plurality of maps includes a first map, a second map, and a third map. The control unit includes a first current output unit that outputs the first current value corresponding to the data voltage based on the first map, a voltage output unit that outputs the voltage based on the second map, and a heat generation characteristic output unit that outputs the power based on the third map and outputs a heat generation characteristic for each location within the active area based on the power.

Electronic device and driving methods of electronic device

A display device includes: a display panel displaying an image; and a drive controller receiving an image signal, and driving the plurality of pixels, and including a heat emitting controller, wherein the heat emitting controller includes: an average region setter receiving the image signal, setting, to one pixel region, some pixels of the plurality of pixels, and extracting an average gray level, based on gray levels of the some pixels of the plurality of pixels to set an average region from the pixel region; a diffusion region setter substituting a diffusion region, which is set to have a temperature corresponding to the average gray level, into the average region; and a look-up table map generator generating a look-up table map by predicting, based on the diffusion region, heat emitted from an inner part of a display region of the display panel and varied depending on the image.

Drive controller, display device, and method for driving display device

A display device including: a display panel including pixels; a controller configured to receive input image data, to detect a high gray region adjacent to a low gray region in an image represented by the input image data, to set at least a portion of the low gray region adjacent to the high gray region as a light spread region based on a light spread distance or a pixel density of the display panel, and to generate output image data by correcting the input image data for the light spread region; and a data driver configured to provide data voltages to the pixels based on the output image data.

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Yongin-si, South Korea

Dae-gwang Jang