Area-saving driving circuit for display panel

A driving circuit of a display panel, comprising:

• a gamma circuit, producing a gamma voltage;
• a plurality of driving units, producing a reference driving voltage according said gamma voltage, respectively;
• a line buffer, producing a plurality of pixel data;
• a plurality of digital-to-analog converting circuits, receiving said reference driving voltage output by said plurality of driving units, selecting one of said plurality of reference voltages as a data driving voltage according to the pixel data, respectively, and transmitting said plurality of data driving voltages to said display panel;
• a voltage boost circuit, used for producing a first supply voltage, and providing said first supply voltage to said plurality of digital-to-analog converting circuits;
• and
• a plurality of voltage boost units, used for producing a second supply voltage, and providing said second supply voltage to said plurality of driving units.

A driving module of a display panel, comprising:

• a flexible circuit board, connected electrically with said display panel;
• and
• a driving chip, disposed on one side of said flexible circuit boards, and comprising:
• a gamma circuit, producing a gamma voltage;
• a plurality of driving units, producing a reference driving voltage according said gamma voltage, respectively;
• a line buffer, producing a plurality of pixel data;
• a plurality of digital-to-analog converting circuits, receiving said reference driving voltage output by said plurality of driving units, selecting one of said plurality of reference voltages as a data driving voltage according to the pixel data, respectively, and transmitting said plurality of data driving voltages to said display panel for displaying images;
• a voltage boost circuit, used for producing a first supply voltage, and providing said first supply voltage to said plurality of digital-to-analog converting circuits;
• and
• at least a voltage boost unit, used for producing a second supply voltage, and providing said second supply voltage to said plurality of driving units.

A display device, comprising:

• a display panel, used for displaying an image;
• a flexible circuit board, connected electrically with said display panel;
• and
• a driving chip, disposed on one side of said flexible circuit boards, producing plurality of data driving voltages to said display panel for displaying said image, and comprising:
• a gamma circuit, producing a gamma voltage;
• a plurality of driving units, producing a reference driving voltage according said gamma voltage, respectively;
• a line buffer, producing a plurality of pixel data;
• a plurality of digital-to-analog converting circuits, receiving said reference driving voltage output by said plurality of driving units, selecting one of said plurality of reference voltages as a data driving voltage according to pixel data, respectively, and transmitting said plurality of data driving voltages to said display panel;
• a voltage boost circuit, used for producing a first supply voltage, and providing said first supply voltage to said plurality of digital-to-analog converting circuits;
• and
• at least a voltage boost unit, used for producing a second supply voltage, and providing said second supply voltage to said plurality of driving units.

A driving circuit of a display panel, comprising:

• a gamma circuit, producing a plurality of gamma voltage;
• a line buffer, producing a plurality of pixel data;
• a plurality of digital-to-analog converting circuits, receiving the plurality of gamma voltages, and selecting one of a plurality of reference voltages as a reference driving voltage according to the pixel data, respectively;
• a plurality of driving units, receiving said reference driving voltage output by said plurality of digital-to-analog converting circuits, producing a data driving voltage according to said reference driving voltage, and transmitting said data driving voltage to said display panel for display images;
• a voltage boost circuit, used for producing a first supply voltage, and providing said first supply voltage to said plurality of digital-to-analog converting circuits;
• and
• at least a voltage boost unit, used for producing a second supply voltage, and providing said second supply voltage to said plurality of driving units;
• where said plurality of driving units comprise:
• a differential unit, receiving said first supply voltage as the power supply, and producing a differential voltage according to said gamma voltage;
• and
• an output unit, receiving said second supply voltage as the power supply, and producing said data driving voltage according to said differential voltage.

A method for manufacturing a display device, comprising steps of:

• providing a display panel, a flexible circuit board, and a driving chip;
• disposing said driving chip to a side of said display panel;
• and
• disposing said flexible circuit board to said display panel and connected electrically with said driving chip;
• where said flexible circuit board requires no storage capacitor.