Multi-sensing channels design for pixel compensation

    公开(公告)号:US10832617B2

    公开(公告)日:2020-11-10

    申请号:US16830286

    申请日:2020-03-26

    Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals, the sensing channels are coupled to the sensing lines in an arrangement selected from one of a random arrangement and a normal arrangement. The driver further includes a signal convertor coupled to the sensing channels and configured to receive the sensing signals from the sensing channels in a sequence selected from one of a random sequence and a normal sequence.

    MULTI-SENSING CHANNELS DESIGN FOR PIXEL COMPENSATION

    公开(公告)号:US20190156754A1

    公开(公告)日:2019-05-23

    申请号:US16120468

    申请日:2018-09-04

    Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels and a signal convertor. The plurality of sensing channels are configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals. The signal convertor are coupled to the sensing channels and configured to receive the sensing signals from the sensing channels. The signal convertor receives the sensing signals from the sensing channels in different sequences during different sensing periods.

    Driving apparatus for a display panel

    公开(公告)号:US11074851B2

    公开(公告)日:2021-07-27

    申请号:US16937598

    申请日:2020-07-24

    Abstract: A driving apparatus capable of driving a display panel is provided. The driving apparatus can include a multiplexer and an output circuit. The multiplexer may include at least one first input terminal configured to receive information data in a first mode, at least one second input terminal configured to receive display data in a second mode, and at least one output terminal coupled to at least one input terminal of the output circuit. The output circuit can be configured to convert digital data into an analog voltage and output the analog voltage via at least one output terminal of the output circuit. The output circuit can be configured to convert the information data in the first mode and convert the display data into at least one driving voltage for driving at least one data line of the display panel in the second mode. The information data cannot be used for driving the display panel to present an image.

    Operational amplifier
    7.
    发明授权

    公开(公告)号:US10673397B2

    公开(公告)日:2020-06-02

    申请号:US15688899

    申请日:2017-08-29

    Abstract: An operational amplifier includes an output node; an output stage, comprising a plurality of output current paths and a plurality of control nodes, wherein the plurality of control nodes are respectively coupled to the plurality of output current paths, and the plurality of output current paths are coupled to the output node and respectively coupled to a plurality of power supply sources providing different voltages; and a selecting unit, configured to couple an internal output node of the operational amplifier to one of the plurality of control nodes of the output stage.

    Driving apparatus for a display panel and operation method thereof

    公开(公告)号:US10777120B2

    公开(公告)日:2020-09-15

    申请号:US15917852

    申请日:2018-03-12

    Abstract: A driving apparatus capable of driving a display panel and an operation method thereof are provided. The driving apparatus includes an output circuit, a receiver circuit and a multiplexer. The output circuit is configured to output a driving voltage for driving a data line of the display panel. The receiver circuit is configured to receive display data for driving the display panel to present an image. A first input terminal of the multiplexer is configured to receive information data, wherein the information data is not configured to drive the display panel to present an image. A second input terminal of the multiplexer is coupled to an output terminal of the receiver circuit. An output terminal of the multiplexer is coupled to an input terminal of the output circuit.

    TRIMMING METHOD, TRIMMING CIRCUITRY, AND TRIMMING SYSTEM FOR INTEGRATED CIRCUIT WITH MEMORY USAGE REDUCTION

    公开(公告)号:US20190181103A1

    公开(公告)日:2019-06-13

    申请号:US15839813

    申请日:2017-12-12

    Abstract: The disclosure provides a trimming method, a trimming circuitry, and a trimming system for an IC with memory usage reduction. The method is applicable to a system including a tester, a characteristic adjustable circuit, and a trimming circuitry having a characteristic outputting circuit, a data memory, and a trim memory. The method includes the following steps. Under each condition, output signals respectively corresponding to trim settings are received from the characteristic adjustable circuit by the characteristic outputting circuit to obtain output values of the condition, a statistical parameter associated with the output values of the condition is calculated by the tester. The statistical parameter of at least one of the conditions is written into the data memory by the tester. An optimal trim setting of the characteristic adjustable circuit is determined according to the statistical parameters under all the conditions and written into the trim memory by the tester.

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