# US 12,217,698 B2 · Odd and even row sequential driving in AMOLED with pentile arrangement

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- Number: US 12,217,698 B2
- Document ID: US12217698B2
- Status: Granted
- Kind: B2
- Application number: 18/033,604
- Filed: 2021-05-11
- Published: 2024-01-18
- Granted: 2025-02-04
- Earliest claimed: 2021-05-11
- Assignees: Google Inc.
- Applicants: Google LLC
- Inventors: Sangmoo Choi; Sun-il Chang
- Web page: https://patentgrep.com/patent/US12217698B2

## CPC

- G09G 3/3266: Details of drivers for scan electrodes
- G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)}
- G09G 2300/0452: Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components
- G09G 2310/0202: Addressing of scan or signal lines
- G09G 2310/08: Details of timing specific for flat panels, other than clock recovery
- G09G 2330/021: Power management, e.g. power saving
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)

## Abstract

A display device includes subpixels of a first, second, and third colors, scan lines, and column lines. The subpixels are arranged in an array of rows and columns, with each subpixel in a column being electrically connected to a same column line. Each subpixels in a column is configured for receiving electronic scan signals that control a light output from an emissive element of the subpixel from a scan line and from the column line connected to the subpixel. One or more line drivers provide the electronic scan signals, during a time period for rendering a frame, to subpixels in a first set of columns first to subpixels of the first color and then to the subpixels of the third color and to subpixels in a second set of columns first to subpixels of the third color and then to the subpixels of the first color.

## Claims

### Claim 1

A display device comprising:
a plurality of subpixels of a first color;
a plurality of subpixels of a second color;
a plurality of subpixels of a third color, wherein the plurality of subpixels of the first, second, and third colors are arranged in an array, the array having a plurality of rows and a plurality of columns, with rows of the array including subpixels arranged in a repeating pattern of subpixels of the first color, the second color, the third color, and the second color, and with alternating columns of the array including subpixels: (a) arranged in a repeating pattern of a subpixel of the first color and a subpixel of the third color, and (b) having only subpixels of the second color;
a plurality of scan lines;
a plurality of column lines;
each subpixel in a column of the array being electrically connected to a same column line of the plurality of column lines and each of the subpixels in a column being configured for receiving electronic scan signals from a scan line and from the column line connected to the subpixel, wherein the received signals control a light output from an emissive element of the subpixel; and
one or more line drivers configured for providing the electronic scan signals, during a time period for rendering a frame on the display device:
(i) to subpixels in a first column of subpixels, first to multiple subpixels of the first color in a sequential order and then to multiple subpixels of the third color in a sequential order, and
(ii) to subpixels in a second column of subpixels, first to multiple subpixels of the third color in a sequential order and then to multiple subpixels of the first color in a sequential order.

### Claim 2 (depends on 1)

The display device of claim 1, wherein the plurality of rows includes more than 1300 rows, and wherein the plurality of columns includes more than 700 columns.

### Claim 3

A display device comprising:
a plurality of subpixels of a first color;
a plurality of subpixels of a second color;
a plurality of subpixels of a third color, wherein the plurality of subpixels of the first, second, and third colors are arranged in an array, the array having a plurality of rows and a plurality of columns, with rows of the array including subpixels arranged in a repeating pattern of subpixels of the first color, the second color, the third color, and the second color, and with alternating columns of the array including subpixels: (a) arranged in a repeating pattern of a subpixel of the first color and a subpixel of the third color, and (b) having only subpixels of the second color;
a plurality of scan lines;
a plurality of column lines;
each subpixel in a column of the array being electrically connected to a same column line of the plurality of column lines and each of the subpixels in a column being configured for receiving electronic scan signals from a scan line and from the column line connected to the subpixel, wherein the received signals control a light output from an emissive element of the subpixel; and
one or more line drivers configured for providing the electronic scan signals, during a time period for rendering a frame on the display device, to subpixels in a first set of columns of subpixels first to subpixels of the first color and then to the subpixels of the third color and to subpixels in a second set of columns of subpixels first to subpixels of the third color and then to the subpixels of the first color, wherein the one or more line drivers includes:
a first line driver configured to provide scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns, and
a second line driver configured to provide scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns.

### Claim 4 (depends on 3)

The display device of claim 3, further comprising a timing controller electrically coupled to the first and second line drivers,
wherein the timing controller is configured for providing, during the time period for rendering a frame on the display device, a first start pulse signal to the first line driver, a second start pulse to the second line driver and a plurality of clock signals to both the first and second line drivers, and
wherein the first line driver is configured for providing the scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided first start pulse signal and the plurality of clock signals, and
wherein the second line driver is configured for providing scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided second start pulse signal and the plurality of clock signals.

### Claim 5 (depends on 3)

The display device of claim 3, further comprising a timing controller electrically coupled to the first and second line drivers,
wherein the timing controller is configured for providing, during a time period for rendering a frame on the display device, a common start pulse signal to the first line driver and to the second line driver, a plurality of first clock signals to the first line driver and a plurality of second clock signals to the second line driver, and
wherein the first line driver is configured for providing the scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided common start pulse signal and the plurality of first clock signals, and
wherein the second line driver is configured for providing scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided common start pulse signal and the plurality of second clock signals.

### Claim 6 (depends on 3)

The display device of claim 3, further comprising a timing controller electrically coupled to the first and second line drivers,
wherein the timing controller is configured for providing, during a time period for rendering a frame on the display device, a first start pulse signal to the first line driver, a plurality of first clock signals to the first line driver and a plurality of second clock signals to the second line driver, and
wherein the first line driver is configured for providing the scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided first start pulse signal and the plurality of first clock signals and wherein the first line driver is configured for providing a second start pulse signal to the second line driver when first line driver has provided scan signals to all of the subpixels of the first color in the first set of columns and all of the subpixels of the third color in the second set of columns, and
wherein the second line driver is configured for providing scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided second start pulse signal and the plurality of second clock signals.

### Claim 7 (depends on 3)

The display device of claim 3, wherein the first line driver is configured for providing scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns a sequential order, on each column, from a top of the display device to a bottom of the display device, and
the second line driver is configured for providing scan signals subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns a sequential order, on each column, from a bottom of the display device to a top of the display device.

### Claim 8 (depends on 7)

The display device of claim 7, further comprising a timing controller electrically coupled to the first and second line drivers,
wherein the timing controller is configured for providing, during a time period for rendering a frame on the display device, a first start pulse signal to the first line driver, a plurality of first clock signals to the first line driver and a plurality of second clock signals to the second line driver, and
wherein the first line driver is configured for providing the scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided first start pulse signal and the plurality of first clock signals and wherein the first line driver is configured for providing a second start pulse signal to the second line driver when first line driver has provided scan signals to all of the subpixels of the first color in the first set of columns and to all of the subpixels of the third color in the second set of columns, and
wherein the second line driver is configured for providing scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided second start pulse signal and the plurality of second clock signals.

### Claim 9 (depends on 7)

The display device of claim 7, further comprising a timing controller electrically coupled to the first and second line drivers,
wherein the timing controller is configured for providing, during a time period for rendering a frame on the display device, a first start pulse signal to the first line driver, a plurality of clock signals to both the first line driver to the second line driver, and
wherein the first line driver is configured for providing the scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided first start pulse signal and the plurality of clock signals and wherein the first line driver is configured for providing a second start pulse signal to the second line driver when first line driver has provided scan signals to all of the subpixels of the first color in the first set of columns and to all off the subpixels of the third color in the second set of columns, and
wherein the second line driver is configured for providing the scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided second start pulse signal and the plurality of clock signals.

### Claim 10 (depends on 1)

The display device of claim 1, wherein the subpixels of the first, second, and third colors include organic light emitting diodes and wherein the first color includes red (R), the second color includes green (G), the third color includes blue (B), and wherein the plurality of subpixels of the first, second, and third colors are arranged in a Pentile RGBG array.

### Claim 11

A method of driving a display panel, the display panel having: a plurality of subpixels of a first color; a plurality of subpixels of a second color; a plurality of subpixels of a third color, the plurality of subpixels of the first, second, and third colors being arranged in an array having a plurality of rows and a plurality of columns, with rows of the array including subpixels arranged in a repeating pattern subpixels of the first color, the second color, the third color, and the second color, and with alternating columns of the array including subpixels: (a) arranged in a repeating pattern of a subpixel of the first color and a subpixel of the third color, and (b) including only subpixels of the second color, a plurality of scan lines; and a plurality of column lines, with each subpixel in a column of the array being electrically connected to a same column line of the plurality of column lines, the method comprising:
providing to each subpixel electronic signals from a scan line and from a column line, wherein the provided signals control a light output from an emissive element of the subpixel;
providing scan signals, from one or more line drivers, during a time period for rendering a frame on the display device;
(i) to subpixels in a first column of subpixels, first to multiple subpixels of the first color in a sequential order and then to multiple subpixels of the third color in a sequential order, and
(ii) to subpixels in a second column of subpixels, first to multiple subpixels of the third color in a sequential order and then to multiple subpixels of the first color in a sequential order.

### Claim 12 (depends on 11)

The method of claim 11, wherein the subpixels of the first, second, and third colors include organic light emitting diodes and wherein the first color includes red (R), the second color includes green (G), the third color includes blue (B), and wherein the plurality of subpixels of the first, second, and third colors are arranged in a Pentile RGBG array.

### Claim 13 (depends on 11)

The method of claim 11, wherein the plurality of rows includes more than 1300 rows, and wherein the plurality of columns includes more than 700 columns.

### Claim 14

A method of driving a display panel, the display panel having: a plurality of subpixels of a first color; a plurality of subpixels of a second color; a plurality of subpixels of a third color, the plurality of subpixels of the first, second, and third colors being arranged in an array having a plurality of rows and a plurality of columns, with rows of the array including subpixels arranged in a repeating pattern subpixels of the first color, the second color, the third color, and the second color, and with alternating columns of the array including subpixels: (a) arranged in a repeating pattern of a subpixel of the first color and a subpixel of the third color, and (b) including only subpixels of the second color, a plurality of scan lines; and a plurality of column lines, with each subpixel in a column of the array being electrically connected to a same column line of the plurality of column lines, the method comprising:
providing to each subpixel electronic signals from a scan line and from a column line, wherein the provided signals control a light output from an emissive element of the subpixel;
providing scan signals, from one or more line drivers, during a time period for rendering a frame on the display device, to subpixels in a first set of columns of subpixels first to subpixels of the first color and then to the subpixels of the third color and to subpixels in a second set of columns of subpixels first to subpixels of the third color and then to the subpixels of the first color, including by:
providing scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns from a first line driver; and
providing scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns from a second line driver.

### Claim 15 (depends on 14)

The method of claim 14, further comprising:
providing, from a timing controller electrically coupled to the first and second line drivers, during the time period for rendering a frame on the display device, a first start pulse signal to the first line driver, a second start pulse to the second line driver and a plurality of clock signals to both the first and second line drivers;
providing scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided first start pulse signal and the plurality of clock signals; and
providing scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided second start pulse signal and the plurality of clock signals.

### Claim 16 (depends on 14)

The method of claim 14, further comprising:
providing, from a timing controller electrically coupled to the first and second line drivers, during the time period for rendering a frame on the display device, a common start pulse signal to the first line driver and to the second line driver, a plurality of first clock signals to the first line driver, and a plurality of second clock signals to the second line driver;
providing scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided common start pulse signal and the plurality of first clock signals;
providing scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided common start pulse signal and the plurality of second clock signals.

### Claim 17 (depends on 14)

The method of claim 14, further comprising:
providing, from a timing controller electrically coupled to the first and second line drivers, during the time period for rendering a frame on the display device, a first start pulse signal to the first line driver, a plurality of first clock signals to the first line driver, and a plurality of second clock signals to the second line driver;
providing, from the first line driver, scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided first start pulse signal and the plurality of first clock signals;
providing, from the first line driver, a second start pulse signal to the second line driver when first line driver has provided scan signals to all of the subpixels of the first color in the first set of columns and all of the subpixels of the third color in the second set of columns; and
providing, from the second line driver, scan signals to subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided second start pulse signal and the plurality of second clock signals.

### Claim 18 (depends on 14)

The method of claim 14, further comprising:
providing, from the first line driver, scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns a sequential order, on each column, from a top of the display device to a bottom of the display device, and
providing, from the second line driver, scan signals subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns a sequential order, on each column, from a bottom of the display device to a top of the display device.

### Claim 19 (depends on 18)

The method of claim 18, further comprising:
providing, from a timing controller electrically coupled to the first and second line drivers, during the time period for rendering a frame on the display device, a first start pulse signal to the first line driver, a plurality of first clock signals to the first line driver, and a plurality of second clock signals to the second line driver;
providing the scan signals to subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided first start pulse signal and the plurality of first clock signals;
providing a second start pulse signal from the first line driver to the second line driver when first line driver has provided scan signals to all of the subpixels of the first color in the first set of columns and to all of the subpixels of the third color in the second set of columns; and
providing scan signals from the second line driver to the subpixels of the third color in the first set of columns and to the subpixels of the first color in the second set of columns in response to the provided second start pulse signal and the plurality of second clock signals.

### Claim 20 (depends on 18)

The method of claim 18, further comprising:
providing, from a timing controller electrically coupled to the first and second line drivers, during the time period for rendering a frame on the display device, a first start pulse signal to the first line driver and a plurality of clock signals to both the first line driver to the second line driver;
providing scan signals to the subpixels of the first color in the first set of columns and to subpixels of the third color in the second set of columns in response to the provided first start pulse signal and the plurality of clock signals;
providing a second start pulse signal from the first line driver to the second line driver when first line driver has provided scan signals to all of the subpixels of the first color in the first set of columns and to all of the subpixels of the third color in the second set of columns; and
providing the scan signals to the subpixels of the third color in the first set of columns and to subpixels of the first color in the second set of columns in response to the provided second start pulse signal and the plurality of clock signals.
