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Display device

A technology for a display device and a display panel, which is applied to static indicators, instruments, etc., can solve the problems of display quality deterioration of the display panel, and achieve the effect of improving the display quality.

Pending Publication Date: 2022-03-29
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the offset value has only a positive value or when the offset value has only a negative value, the output voltage of the gamma amplifier may become different from the target voltage, so that the display quality of the display panel may deteriorate

Method used

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Embodiment Construction

[0054] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of various exemplary embodiments or implementations of the invention. As used herein, "embodiment" and "implementation" are interchangeable words that are non-limiting examples of devices or methods that employ one or more of the inventive concepts disclosed herein. It is evident, however, that the various exemplary embodiments may be practiced without these specific details, or with one or more equivalent arrangements. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the various exemplary embodiments. Furthermore, the various exemplary embodiments may be different, but are not necessarily exhaustive. For example, the specific shape, configuration, and characteristics of an exemplary embodiment may be used or implemented in another exemplary embodime...

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Abstract

The display device includes a display panel, a gamma reference voltage generator, and a data driver. The gamma reference voltage generator is configured to generate a gamma reference voltage. The gamma reference voltage generator includes a gamma amplifier configured to output a gamma reference voltage. The data driver is configured to generate a data voltage based on the gamma reference voltage and output the data voltage to the display panel. The polarity of the offset voltage of the gamma amplifier is alternately inverted in one frame unit and in two frame units.

Description

technical field [0001] Exemplary embodiments / implementations of the present invention generally relate to display devices and methods of driving the display devices. More particularly, embodiments of the inventive concept relate to a display device and a method of driving the display device that effectively compensate an offset voltage of a gamma amplifier. Background technique [0002] Generally, a display device includes a display panel and a display panel driver. The display panel includes a plurality of gate lines and a plurality of data lines. The display panel driver includes a gate driver, a data driver and a gamma reference voltage generator. The gate driver outputs gate signals to the gate lines. The data driver outputs data voltages to the data lines. The gamma reference voltage generator provides the gamma reference voltage to the data driver. [0003] The gamma amplifier outputting the gamma reference voltage from the gamma reference voltage generator to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20
CPCG09G3/20G09G2320/0673G09G3/3611G09G3/3685G09G3/3696G09G3/3614G09G2300/0426G09G2320/0276G09G2310/0291G09G3/2011G09G3/3275G09G2320/0247G09G2310/0254G09G2330/028G09G2310/08G09G2310/0275
Inventor 金受妍林泰坤金智贤李智叡
Owner SAMSUNG DISPLAY CO LTD