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Organic light emitting diode display device and display panel thereof

A technology of light-emitting diodes and display panels, applied to static indicators, instruments, etc., which can solve problems such as user perception of brightness differences, data voltage distortion, and image quality degradation of OLED display devices

Pending Publication Date: 2022-02-18
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when the display panel displays an image based on the stored data voltage, the stored data voltage may be distorted due to leakage current in pixels of the display panel, and thus, the image quality of the OLED display device may be degraded.
Further, when the driving frequency for the display panel is changed from the previous driving frequency to the current driving frequency, the brightness of the display panel driven at the current driving frequency may be different from the brightness of the display panel driven at the previous driving frequency, and this brightness difference May be perceived as a defect by users

Method used

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  • Organic light emitting diode display device and display panel thereof
  • Organic light emitting diode display device and display panel thereof
  • Organic light emitting diode display device and display panel thereof

Examples

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Embodiment Construction

[0053] Hereinafter, embodiments of the inventive concept will be explained in detail with reference to the accompanying drawings.

[0054] figure 1 is a block diagram showing a display panel of an organic light emitting diode (OLED) display device according to an embodiment, figure 2 is a graph showing an example of the luminance of a display panel driven at a normal drive frequency and the luminance of a display panel driven at a low frequency lower than the normal drive frequency, and image 3 is a diagram showing an example of data voltage ranges for red, green, and blue pixels of a conventional display panel and data voltage ranges of red, green, and blue pixels for a display panel according to an embodiment.

[0055] refer to figure 1 The display panel 100 of the OLED display device according to the embodiment may include first pixels RPX emitting light of a first color, second pixels GPX emitting light of a second color, and third pixels BPX emitting light of a third ...

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Abstract

The invention relates to an organic light emitting diode display device and a display panel thereof. The display panel of an OLED display device includes a first pixel configured to emit first color light, a second pixel configured to emit second color light , and a third pixel configured to emit third color light. Each of the first, second and third pixels includes at least two transistors, at least one capacitor and an organic light emitting diode. At least one of at least two transistors or at least one capacitor included in the third pixel has a size different from a size of a corresponding one of the at least two transistors or the at least one capacitor included in the first pixel or the second pixel.

Description

technical field [0001] Embodiments of the inventive concept relate to display devices, and more particularly, to a display panel of an organic light emitting diode (OLED) display device and the OLED display device. Background technique [0002] In organic light emitting diode (OLED) display devices employed in portable devices such as smartphones and tablet computers, it may be desirable to reduce power consumption. Recently, in order to reduce the power consumption of the OLED display device, a low frequency driving technique that reduces the driving frequency when displaying a still image has been developed. For example, when low frequency driving is performed, the OLED display device may not drive the display panel for at least one frame period, and the display panel may display an image based on the stored data voltage, thereby reducing power consumption of the OLED display device. [0003] However, when the display panel displays an image based on the stored data volta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3233
CPCG09G3/3233G09G2320/0233G09G2300/0861G09G2310/0262G09G2300/0819G09G2300/0452G09G2340/0435G09G2330/021G09G2320/103G09G2300/0852G09G2300/0876G09G2300/0426G09G2300/0842G09G2230/00G09G3/3258G09G3/3266G09G3/3291
Inventor 贾智铉琴络铉严基明
Owner SAMSUNG DISPLAY CO LTD