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US 12,008,965 B2Granted
Display panel and display device using the same
AssigneeLG Display Co., Ltd.
InventorsJin Woo Jung, Sang Jin Nam
Life of this patent
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Abstract
The present disclosure relates to a display panel and a display device using the same, and includes a second pixel area in which pixels having a resolution or pixels per inch (PPI) lower than that of a first pixel area are arranged. A data voltage of pixel data to be written to a pixel in the second pixel area is applied to a first gate electrode of a driving element disposed in the second pixel area. A compensation voltage for increasing luminance of the second pixel area is applied to a second gate electrode of the driving element.
Claims19
A display panel comprising:
- a first pixel area in which pixels are arranged;
- and
- a second pixel area in which pixels having a resolution or pixels per inch less than a resolution or pixels per inch of the first pixel area are arranged, wherein
- each of the pixels in the first pixel area includes a first driving transistor configured to drive a light emitting element, and
- each of the pixels in the second pixel area includes a second driving transistor configured to drive a light emitting element, wherein
- the second driving transistor includes a first gate electrode, a second gate electrode, a first electrode, and a second electrode,
- a data voltage of pixel data to be written to a pixel of the second pixel area is applied to the first gate electrode of the second driving transistor through a data line, and
- a compensation voltage for increasing luminance of the second pixel area is applied to the second gate electrode of the second driving transistor,
- wherein the first driving transistor includes:
- a first gate electrode and a second gate electrode;
- a first electrode to which a pixel driving voltage is applied;
- and
- a second electrode connected to an anode electrode of the light emitting element, and
- wherein the pixel driving voltage is applied to the second gate electrode of the first driving transistor.
11 more elements
A display device comprising:
- a display panel including a first pixel area in which pixels are arranged and a second pixel area in which pixels having a resolution or pixels per inch less than a resolution or pixels per inch of the first pixel area are arranged;
- a data driver configured to convert pixel data of an input image into a data voltage and supply the data voltage to data lines connected to the pixels in the first pixel area and the pixels in the second pixel area;
- and
- a luminance compensation unit configured to generate a compensation voltage for increasing luminance of the second pixel area, wherein the compensation voltage is applied to the pixels in the second pixel area,
- wherein each of the pixels in the first pixel area includes a first driving transistor configured to drive a light emitting element, and each of the pixels in the second pixel area includes a second driving transistor configured to drive a light emitting element,
- wherein the second driving transistor includes a first gate electrode, a second gate electrode, a first electrode, and a second electrode,
- wherein a data voltage of pixel data to be written to the pixel of the second pixel area is applied to the first gate electrode of the second driving transistor through a data line,
- wherein the compensation voltage for increasing the luminance of the second pixel area is applied to the second gate electrode of the second driving transistor, and
- wherein the first driving transistor includes:
- a first gate electrode and a second gate electrode;
- a first electrode to which a pixel driving voltage is applied;
- and
- a second electrode connected to an anode electrode of the light emitting element, and
- wherein the pixel driving voltage is applied to the second gate electrode of the first driving transistor.
11 more elements
Dependencies are inferred from the claim text.