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US 11,114,017 B2Granted
Mura correction driver
AssigneeSilicon Works Co., Ltd.
InventorsKi Taek Kim, Jun Young Park, Doo Hwa Jang, Seung Wan Yu, Do Yeon Kim
Life of this patent
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Abstract
A Mura correction driver which corrects Mura detected in a detection image obtained by photographing a display panel. The Mura correction driver uses Mura correction data including a position value of a Mura block for a display panel and coefficient values for the Mura block, and corrects display data corresponding to the position value of the Mura block, by using a Mura correction equation to which the coefficient values of the Mura block are applied.
Claims14
A Mura correction driver comprising:
- a Mura memory configured to store Mura correction data including a position value of a Mura block for a display panel and coefficient values for the Mura block;
- and
- a Mura correction unit configured to receive display data and the Mura correction data, set first display data corresponding to the position value of the Mura block, as a first input value of a quadratic Mura correction equation to which the coefficient values of the Mura block are applied, generate a solution of the Mura correction equation corresponding to the first input value, as first correction display data for the first display data, and output the display data including the position value of the Mura block and the first correction display data,
- wherein the Mura memory,
- stores the position value of the Mura block which has Mura as a result of determining a brightness value in a block unit of a detection image for each gray level of the display panel, and stores the coefficient values of coefficients of the Mura correction equation for correcting a measurement value of the Mura block for each gray level to an average pixel brightness value of the display panel by using the Mura correction equation.
2 more elements
A Mura correction driver comprising:
- a Mura memory configured to store Mura correction data including a position value of a Mura block for a display panel and coefficient values for the Mura block;
- a display brightness value control unit configured to receive a control signal for display brightness value control, and provide a control value corresponding to the control signal;
- a Mura correction equation setting circuit configured to receive the Mura correction data, and set a Mura correction equation for a first input vale, by applying the coefficient values of the Mura block;
- an input value adjustment circuit configured to set a third input value by calculating the first input value and the control value, and change the Mura correction equation into an equation for the third input value;
- and
- a correction output circuit configured to generate a solution of the Mura correction equation corresponding to the third input value as first display data corresponding to the position value of the Mura block among display data is inputted as the first input value, as first correction display data for the first display data, and output the display data including the position value of the Mura block and the first correction display data.
3 more elements
Dependencies are inferred from the claim text.