DISPLAY DEVICE, METHOD OF DRIVING DISPLAY DEVICE, AND ELECTRONIC APPARATUS

• US 20150279266A1
• Filed: 03/13/2015
• Published: 10/01/2015
• Est. Priority Date: 03/27/2014
• Status: Active Grant

• Current Assignee: Sony Group Corp.
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Onoyama, Yusuke, Kimura, Kei
• Granted Patent: US 11,521,551 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G09G 2300/0408 Integration of the drivers onto the display substrate
• CPC Class Codes: G09G 2300/0842 forming a memory circuit, e.g. a dynamic memory with one capacitor
• CPC Class Codes: G09G 2310/0213 controlling the sequence of the scanning lines with respect to the patterns to be displayed, e.g. to save power
• CPC Class Codes: G09G 2310/0224 Details of interlacing
• CPC Class Codes: G09G 2310/0291 Details of output amplifiers or buffers arranged for use in a driving circuit
• CPC Class Codes: G09G 2320/0219 Reducing feedthrough effects in active matrix panels, i.e. voltage changes on the scan electrode influencing the pixel voltage due to capacitive coupling
• CPC Class Codes: G09G 2320/0233 Improving the luminance or brightness uniformity across the screen
• CPC Class Codes: G09G 3/3225 using an active matrix
• CPC Class Codes: G09G 3/3266 Details of drivers for scan electrodes

Abstract

Provided is a display device including: a pixel array unit in which pixels including a light-emitting unit are arranged in a matrix shape; two drive units which are disposed on the same substrate as the pixel array unit with the pixel array unit interposed therebetween, which have output stages in a number that is half of the number of pixel rows of the pixel array unit, and in which the output stages are in charge of driving of pixels on an odd row side and on an even row side; and a control unit which performs control of driving the pixels on the odd row side by using the output stages of one drive unit between the two drive units, of driving the pixels on the even row side by using the output stages of the other drive unit, and of inverting the driving for each field.

Claims

1. A display device, comprising:

a pixel array unit in which pixels including a light-emitting unit are arranged in a matrix shape;

two drive units which are disposed on the same substrate as the pixel array unit with the pixel array unit interposed therebetween, which have output stages in a number that is half of the number of pixel rows of the pixel array unit, and in which the output stages are in charge of driving of pixels on an odd row side and on an even row side; and

a control unit which performs control of driving the pixels on the odd row side by using the output stages of one drive unit between the two drive units, of driving the pixels on the even row side by using the output stages of the other drive unit, and of inverting the driving for each field.

2. The display device according to claim 1,

wherein each of the two drive units has two switches which selectively establish a connection between each output stage and each scanning line on an odd row side, and a connection between the output stage and each scanning line on an even row side.

3. The display device according to claim 2,

wherein when turning on a switch on an odd row side and turning off a switch on an even row side with respect to the two switches on one side of the two drive units, the control unit turns on a switch on an even row side and turns off a switch on an odd row side with respect to the two switches on the other side of the two drive units, and converts on/off control of the two switches for each field.

4. A display device, comprising:

a pixel array unit in which pixels including a light-emitting unit are arranged in a matrix shape;

two drive units which are disposed on the same substrate as the pixel array unit with the pixel array unit interposed therebetween, which have output stages in a number that is half of the number of pixel rows of the pixel array unit, and in which the output stages are in charge of driving of pixels on an odd row side and on an even row side; and

a switch unit in which two switches, which selectively establish a connection between each output stage of the two drive units and each scanning line on an odd row side and a connection between the output stage and each scanning line on an even row side, are disposed for every output stages of the two drive units.

5. A display device, comprising:

a pixel array unit in which pixels including a light-emitting unit are arranged in a matrix shape;

a first scanning line that is commonly connected to pixels which are arranged in a first row;

a first switch;

a second switch;

a first drive unit; and

a second drive unit,

wherein an output stage of the first drive unit is connected to one end of the first scanning line through the first switch,

an output stage of the second drive unit is connected to the other end of the first scanning line through the second switch, and

when the first switch enters a conduction state, the second switch enters a non-conduction state.

6. The display device according to claim 5, further comprising:

a second scanning line that is commonly connected to pixels which are arranged in a second row;

a third switch; and

a fourth switch,

wherein the output stage of the first drive unit is connected to an end of the second scanning line through the third switch,

the output stage of the second drive unit is connected to the other end of the second scanning line through the fourth switch,

when the third switch enters a conduction state, the fourth switch enters a non-conduction state, and

when the first switch enters a conduction state, the third switch enters a non-conduction state.

7. A method of driving a display device that includes a pixel array unit in which pixels including a light-emitting unit are arranged in a matrix shape, and two drive units which are disposed on the same substrate as the pixel array unit with the pixel array unit interposed therebetween, which have output stages in a number that is half of the number of pixel rows of the pixel array unit, and in which each of the output stages is in charge of driving of pixels on an odd row side and on an even row side, the method comprising:

driving pixels on the odd row side by using the output stages of one drive unit between the two drive units, driving pixels on the even row side by using the output stages of the other drive unit, and inverting the driving for each field.

8. An electronic apparatus, comprising:

a display device including;

a pixel array unit in which pixels including a light-emitting unit are arranged in a matrix shape;

two drive units which are disposed on the same substrate as the pixel array unit with the pixel array unit interposed therebetween, which have output stages in a number that is half of the number of pixel rows of the pixel array unit, and in which the output stages are in charge of driving of pixels on an odd row side and on an even row side; and

a control unit which performs control of driving the pixels on the odd row side by using the output stages of one drive unit between the two drive units, of driving the pixels on the even row side by using the output stages of the other drive unit, and of inverting the driving for each field.