Display apparatus

Abstract

A display device. The display device includes a pixel array, a timing controller, and a source driver. The pixel array has a plurality of liquid crystal pixels and a plurality of self-emissive pixels. The timing controller receives display data to provide driving mode data and pixel grayscale data, wherein the driving mode data is based on the configuration positions of the liquid crystal pixels and the self-emissive pixels. The source driver is coupled between the pixel array and the timing controller, and receives the driving mode data and the pixel grayscale data to provide a plurality of liquid crystal source voltages and a plurality of self-emissive source voltages based on the driving mode data and the pixel grayscale data.

Claims

1. A display device, comprising: A pixel array having multiple liquid crystal pixels and multiple self-emissive pixels; a timing controller receiving display data to provide driving mode data and pixel grayscale data, wherein the driving mode data is based on an arrangement position of the liquid crystal pixels and the self-emissive pixels; and a source driver coupled between the pixel array and the timing controller, and receiving the driving mode data and the pixel grayscale data to provide multiple liquid crystal source voltages and multiple self-emissive source voltages based on the driving mode data and the pixel grayscale data, wherein the liquid crystal source voltages are provided to the liquid crystal pixels and their voltage polarity relative to a common voltage varies with time, and the self-emissive source voltages are provided to the self-emissive pixels and their voltage polarity relative to the common voltage does not vary with time.

2. The display device as claimed in claim 1, wherein the drive mode data includes a enable field, a channel number field, and a channel start field, wherein the enable field is used to determine a drive mode for a corresponding column in the pixel array, the channel number field indicates a number of self-emissive pixels in the corresponding column, and the channel start field indicates a starting position of the self-emissive pixels in the corresponding column.

3. The display device as claimed in claim 1, wherein the source driver comprises: A decoding circuit receives the driving mode data, the pixel grayscale data, and a polarity data to provide multiple sub-pixel data, multiple driving mode signals, and a polarity switch signal; and multiple source channels are coupled to the decoding circuit, and each of the source channels receives a first sub-pixel data and a second sub-pixel data of the sub-pixel data, a first driving mode signal of the driving mode signals, and the polarity switch signal to provide a pair of liquid crystal source voltages or self-emissive source voltages.

4. The display device as claimed in claim 3, wherein each of the source channels comprises: A first switch has a first terminal for receiving first sub-pixel data, a second terminal for receiving second sub-pixel data, a control terminal for receiving a polarity switch signal, and an output terminal; a second switch has a first terminal for receiving second sub-pixel data, a second terminal for receiving first sub-pixel data, a control terminal for receiving the polarity switch signal, and an output terminal; a first potentiometer has an input terminal coupled to the output terminal of the first switch, a positive power supply terminal for receiving a positive system voltage, a negative power supply terminal for receiving a ground voltage, and an output terminal; A second potential converter has an input terminal coupled to the output terminal of the second switch, a positive power supply terminal, a negative power supply terminal receiving the ground voltage, and an output terminal; a multiplexing circuit has a first input terminal receiving a negative system voltage, a second input terminal receiving the positive system voltage, a control terminal receiving the first drive mode signal, and an output terminal coupled to the positive power supply terminal of the second potential converter. A first digital-to-analog converter has an input terminal coupled to the output terminal of the first potentiometer and an output terminal; A second digital-to-analog converter having an input terminal coupled to the output terminal of the second potentiometer and an output terminal; A third switch has an input terminal coupled to the output terminal of the first digital-to-analog converter, a control terminal for receiving the polarity switch signal, a first output terminal coupled to a first source line, and a second output terminal coupled to a second source line. And a fourth switch having an input terminal coupled to the output terminal of the second digital-to-analog converter, a first output terminal coupled to the second source line, and a second output terminal coupled to the first source line, wherein the first source line and the second source line are used to receive the pair of liquid crystal source voltages or the self-emissive source voltages.

5. The display device as claimed in claim 3, wherein the driving mode data, the pixel grayscale data, and the polarity data are encapsulated in a single line of data.

6. The display device as claimed in claim 5, wherein the line of data is transmitted via an integrated-stream protocol (ISP).

7. The display device as claimed in claim 1, wherein the self-emissive pixels include at least one micro light-emitting diode pixel and / or at least one organic light-emitting diode pixel.

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