Display panel driving circuit and display device including the same
AssigneeLG Display Co., Ltd.
InventorSe Dong Park
Life of this patent
Estimating the term…
Abstract
A display panel driving circuit according to an embodiment and a display device including the same are disclosed. A display panel driving circuit includes a drive IC configured to supply PWM data of an input image to a plurality of data lines connected to pixels; and a driving control part configured to transmit the PWM data to the drive IC or modulate the PWM data to transmit it to the drive IC according to a result of comparing a grayscale value of the input image with a preset reference grayscale value, wherein the reference grayscale value is preset as a smallest grayscale value in which a flicker does not occur.
Claims5
A display panel driving circuit comprising:
- a drive IC configured to supply PWM data of an input image to a plurality of data lines connected to pixels;
- and
- a driving control part configured to transmit the PWM data to the drive IC or modulate the PWM data to transmit it to the drive IC according to a result of comparing a grayscale value of the input image with a preset reference grayscale value,
- wherein the reference grayscale value is preset as a smallest grayscale value in which a flicker does not occur,
- wherein the driving control part is configured to modulate a duty ratio of the PWM data using a pre-stored lookup table and to modulate a voltage level of the modulated PWM data using a preset voltage value in response to the grayscale value of the input image is less than the reference grayscale value.
A display device comprising:
- a pixel array including a plurality of data lines, a plurality of scan lines, and a plurality of pixels;
- a line selection part configured to supply a driving voltage to the plurality of scan lines;
- a drive IC configured to supply PWM data of an input image to the plurality of data lines;
- and
- a driving control part configured to transmit the PWM data to the drive IC or to modulate the PWM data to transmit it to the drive IC according to a result of comparing a grayscale value of the input image with a preset reference grayscale value,
- wherein the reference grayscale value is preset as a smallest grayscale value in which a flicker does not occur,
- wherein the driving control part is configured to modulate a duty ratio of the PWM data using a pre-stored lookup table and to modulate a voltage level of the modulated PWM data using a preset voltage value in response to the grayscale value of the input image is less than the reference grayscale value.
Dependencies are inferred from the claim text.