Display device and control method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsKwang-chui Jung, Joan-chul Goh, Young-soo Yun, Beohm-rock Choi
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Abstract
A display device with improved brightness and a method of controlling the display device are presented. The display device includes a driving transistor, a pixel electrode electrically connected to the driving transistor, a detecting transistor detecting a magnitude of an electric signal transferred from the driving transistor to the pixel electrode, and a controller. The controller regulates a data voltage applied to the pixel electrode based on a difference between the detected electric signal and a predetermined reference level. The display device achieves improved homogeneity of brightness by compensating for any deterioration of TFTs.
Claims18
A display device comprising:
- a driving transistor;
- a pixel electrode electrically connected to the driving transistor;
- a detecting transistor detecting a magnitude of an electric signal transferred from the driving transistor to the pixel electrode;
- and
- a controller regulating a data voltage applied to the pixel electrode based on a difference between the detected electric signal and a predetermined reference level.
A display device comprising:
- a pixel electrode;
- a detecting transistor detecting a pixel current applied to the pixel electrode;
- and
- a controller regulating a pixel voltage applied to the pixel electrode based on a difference between the pixel current and a predetermined reference level.
A method of controlling a display device, the method comprising:
- turning on a driving transistor;
- detecting an electric signal transmitted from the driving transistor to a pixel electrode;
- comparing the detected electric signal with a predetermined reference level;
- and
- regulating a data voltage applied to the pixel electrode based on a difference between the electric signal and the predetermined reference level.
Dependencies are inferred from the claim text.