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Pixel sensing circuit and display driving integrated circuit

A technology of sensing circuits and integrated circuits, applied in static indicators, instruments, etc., can solve the problems of image quality degradation in display interval or frame rate, reduce frame rate, reduce display interval, etc., to minimize sensing time, reduce Sensing error, the effect of shortening the sensing time

Pending Publication Date: 2022-04-12
LX SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, an increase in the sensing interval may mean reducing the display interval of the panel in one frame or reducing the frame rate
Reduction of the display interval or frame rate may cause problems such as image quality degradation
Especially in the case of OLED (Organic Light Emitting Diode) panels, the operating range of the pixel sensing circuit may be further reduced as the load on the pixel increases and the display speed increases

Method used

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  • Pixel sensing circuit and display driving integrated circuit
  • Pixel sensing circuit and display driving integrated circuit
  • Pixel sensing circuit and display driving integrated circuit

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Embodiment Construction

[0040] Hereinafter, some embodiments of the present disclosure will be described in detail with reference to exemplary drawings. Regarding the reference numerals of components in the respective drawings, it should be noted that even if the same reference numerals are shown in different drawings, these reference numerals are assigned to the same components. In addition, in describing the present disclosure, a detailed description of well-known configurations or functions related to the present disclosure that may obscure the subject matter of the present disclosure will be omitted.

[0041] In addition, terms such as "first", "second", "A", "B", "(a)", "(b)" or the like may be used to describe components of the present disclosure. These terms are only intended to distinguish the corresponding component from other components, and the nature, order or sequence of the corresponding component is not limited to these terms. Where components are described as being "coupled", "combin...

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Abstract

The present disclosure relates to a pixel sensing circuit that expands an operation interval of an integrator by using an additional signal and makes it possible to ensure a time required for stable output of a sensing voltage.

Description

technical field [0001] This disclosure relates to techniques for testing pixel sensing circuits. Background technique [0002] The display device may include a source driver for driving pixels arranged on the panel. [0003] The source driver determines a data voltage according to image data, and controls brightness of each pixel by supplying the data voltage to the pixel. [0004] On the other hand, even if the same data voltage is supplied, the luminance of each pixel may vary depending on the characteristics of the pixel. For example, each pixel includes a driving transistor, and when the threshold voltage of the driving transistor changes, the luminance of the pixel may change even if the same data voltage is supplied. If the source driver does not take into account the characteristic changes of these pixels, the driven pixels have undesired brightness and degraded image quality. Smudges on the screen are an example of poor image quality. [0005] In order to improve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/3233G09G3/3275
CPCG09G3/3275G09G3/3233G09G2320/0295G09G2310/0291G09G2310/0294G09G2320/0233G09G2320/045G09G2360/142G09G2300/0439G09G3/3291G09G2330/12
Inventor 池承桓李相珉催箕伯尹祯培
Owner LX SEMICON CO LTD
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