Display device and calibration method

• Main Authors: SUN, CHUN-YI, WU, HUNG-PAO, LIN, JON-HONG, HUANG, BO-RU, WU, PENG-HSIANG, LEE, LIAN-YOUNG
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2023
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

A display device includes a display panel, a back light module and a circuit. The display panel includes multiple regions. The back light module includes multiple light emitting units, and each region corresponds to at least one of the light emitting units. The circuit includes a correction lookup table corresponding to a first light emitting unit. The correction lookup table records a parameter and multiple duty cycles. The circuit accesses the correction lookup table and determines an output duty cycle according to the duty cycles. The circuit determines a current value of the first light emitting unit according to the output duty cycle and the parameter for driving the first light emitting unit.