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Display panel and method for driving the display panel

A technology for display panels and driving circuits, applied in static indicators, instruments, electrical components, etc., can solve problems such as the reduction of image color reproducibility, and achieve the effect of contributing to weight reduction, miniaturization, and effective driving

Pending Publication Date: 2020-04-14
SAMSUNG ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At this time, not only the color gradation of light but also the wavelength of light will change according to the amplitude of the current, so the color reproducibility of the image will decrease

Method used

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  • Display panel and method for driving the display panel
  • Display panel and method for driving the display panel
  • Display panel and method for driving the display panel

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Embodiment Construction

[0046] In explaining the present disclosure, when it is judged that specific descriptions for related known technologies may unnecessarily obscure the gist of the present invention, the detailed descriptions are omitted. And, repeated descriptions of the same structures will be omitted.

[0047] The suffix "unit" used in the following description for constituent elements is given or mixed for the convenience of writing the description only, and does not have a distinctive meaning or function by itself.

[0048] Terms used in the present disclosure are for describing the embodiments only, and are not intended to limit and / or define the present disclosure. A singular expression also includes a plural expression unless a distinction is clearly shown in the text.

[0049] In the present disclosure, terms such as "comprising" or "having" are intended to describe the existence of features, numbers, steps, operations, constituent elements, components or combinations thereof describe...

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PUM

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Abstract

The invention discloses a display panel and a method for driving the display panel. In the display panel, a plurality of pixels respectively including a plurality of sub pixels are arranged in a matrix form on a glass. Each of the plurality of sub pixels includes a driving circuit disposed on the glass and configured to receive a PAM data voltage and a PWM data voltage, and an inorganic light emitting device configured to emit a light based on a driving current provided from the driving circuit. The PAM data voltage is applied at once to the plurality of pixels included in the display panel. The driving circuit compensates a deviation between driving circuits included in each of the plurality of sub pixels based on a driving voltage of the driving circuit, and controls a pulse width of a driving current having an amplitude corresponding to the applied PAM data voltage based on the applied PWM data voltage so as to control a grayscale of a light emitted by the inorganic light emitting device.

Description

technical field [0001] The present disclosure relates to a display panel and a method for driving the display panel, and in more detail, relates to a display panel using light emitting elements to form pixels and a method for driving the display panel. Background technique [0002] Conventionally, in display panels that drive inorganic light-emitting elements (hereinafter referred to as LEDs) such as red light-emitting diodes (LEDs), green LEDs, and blue LEDs as sub-pixels (sub pixels), the pulse width (PAM: Pulse Amplitude Modulation) The driving method shows the color scale (grayscale or gradation) of the sub-pixel. [0003] At this time, not only the gradation of the light but also the wavelength of the light changes according to the amplitude of the current, and thus the color reproducibility of the image decreases. figure 1 shows the wavelength shift (wavelength shift) according to the magnitude (magnitude, or amplitude (or amplitude)) of the driving current flowing in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G3/32H01L25/0753H01L25/167H01L33/62G09G2300/0452G09G3/2011G09G3/2014G09G3/2003G09G2320/0242G09G2310/0297G09G2310/0259G09G2310/066G09G2300/0852G09G2300/0861G09G2310/0251G09G2330/12G09G3/2081G09G2310/0216G09G2310/0245G09G2310/063G09G3/3233G09G2320/045G09G2330/028G09G2320/0233H01L27/156G09G2300/043G09G2310/08G09G2310/0202G09G2300/0426G09G2320/0633G09G2300/0819
Inventor 金珍浩金容商申相旻吴宗洙丁英基
Owner SAMSUNG ELECTRONICS CO LTD
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