# US 12,190,767 B2 · Tiling device including substrates and data driving circuit

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- Number: US 12,190,767 B2
- Document ID: US12190767B2
- Status: Granted
- Kind: B2
- Application number: 17/985,926
- Filed: 2022-11-14
- Published: 2023-06-15
- Granted: 2025-01-07
- Earliest claimed: 2021-12-15
- Assignees: Innolux Corporation
- Applicants: Innolux Corporation
- Inventors: Yu-Hsin Feng; Yu-Tse Lu; Chong-De Wang
- Web page: https://patentgrep.com/patent/US12190767B2

## CPC

- G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters}
- G09G 3/2096: {Details of the interface to the display terminal specific for a flat panel (suitable for both CRT and flat panel G09G5/006; specific for a CRT G09G1/167)}
- H10W 72/00: Interconnections or connectors in packages
- G06F 3/1446: {display composed of modules, e.g. video walls}
- G09G 3/3275: Details of drivers for data electrodes
- G09G 3/3688: {suitable for active matrices only}
- G09G 2300/026: Video wall, i.e. juxtaposition of a plurality of screens to create a display screen of bigger dimensions
- G09G 2300/0828: forming a digital to analog [D/A] conversion circuit
- G09G 2310/0202: Addressing of scan or signal lines
- G09G 2310/0267: Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
- G09G 2310/0275: Details of drivers for data electrodes, other than drivers for liquid crystal, plasma or OLED displays, not related to handling digital grey scale data or to communication of data to the pixels by means of a current
- G09G 2320/0673: for control of gamma adjustment, e.g. selecting another gamma curve
- G09G 2360/122: Tiling
- 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)
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)

## Abstract

A tiling device with a driving method having a low number of data pins is provided. The tiling device includes a first substrate, a second substrate and a data driving circuit. The first substrate includes a plurality of first semiconductor units. The second substrate includes a plurality of second semiconductor units. The data driving circuit simultaneously provides first data signals to the plurality of first semiconductor units and the plurality of second semiconductor units, and simultaneously provides second data signals to the plurality of first semiconductor units and the plurality of second semiconductor units.

## Claims

### Claim 1

A tiling device, comprising:
a first substrate, comprising a plurality of first semiconductor units;
a second substrate, comprising a plurality of second semiconductor units; and
a data driving circuit, coupled to the first substrate and the second substrate, and configured to simultaneously provide first data signals to the plurality of first semiconductor units and the plurality of second semiconductor units, and simultaneously provide second data signals to the plurality of first semiconductor units and the plurality of second semiconductor units,
wherein the first substrate further comprises at least one first data channel for receiving the first data signals,
wherein the second substrate further comprises at least one second data channel for receiving the second data signals,
wherein the data driving circuit comprises at least one data pin for providing the first data signals and the second data signals, and
wherein a number of the at least one data pin is less than a sum of a number of the at least one first data channel and a number of the at least one second data channel.

### Claim 2 (depends on 1)

The tiling device as claimed in claim 1, wherein the plurality of first semiconductor units and the plurality of second semiconductor units are each one of pixel units and sub-pixel units.

### Claim 3 (depends on 1)

The tiling device as claimed in claim 1, wherein the data driving circuit provides the first data signals and the second data signals at different time periods.

### Claim 4 (depends on 1)

The tiling device as claimed in claim 1, wherein
the number of the at least one first data channels is the same as the number of the at least one second data channels.

### Claim 5 (depends on 1)

The tiling device as claimed in claim 1, wherein
the number of the at least one first data channel is different from the number of the at least one second data channel.

### Claim 6 (depends on 1)

The tiling device as claimed in claim 1, further comprising:
a scan driving circuit, coupled to the first substrate and the second substrate, configured to provide a first scan signal to the first substrate during a first time period and provide a second scan signal to the second substrate during a second time period, wherein the first time period is different from the second time period.

### Claim 7 (depends on 6)

The tiling device as claimed in claim 6, wherein
the first data signal is provided to the plurality of first semiconductor units and the plurality of second semiconductor units during the first time period, and
the second data signals are provided to the plurality of first semiconductor units and the plurality of second semiconductor units during the second time period.

### Claim 8 (depends on 7)

The tiling device as claimed in claim 7, wherein during the first time period, the first scan signal is provided to at least one first semiconductor unit in a first unit row in the first substrate.

### Claim 9 (depends on 8)

The tiling device as claimed in claim 8, wherein
the at least one first semiconductor unit in the first unit row updates display content of the first unit row in response to at least one of the first data signals during the first time period.

### Claim 10 (depends on 7)

The tiling device as claimed in claim 7, wherein during the second time period, the second scan signal is provided to at least one second semiconductor unit in a second unit row in the second substrate.

### Claim 11 (depends on 10)

The tiling device as claimed in claim 10, wherein
the at least one second semiconductor unit in the second unit row updates display content of the second unit row in response to at least one of the second data signals during the second time period.

### Claim 12 (depends on 6)

The tiling device as claimed in claim 6, further comprising:
a third substrate, wherein the data driving circuit is coupled to the first substrate, the second substrate, and the third substrate.

### Claim 13 (depends on 12)

The tiling device as claimed in claim 12, wherein the data driving circuit simultaneously provides the first data signals to the plurality of first semiconductor units, the plurality of second semiconductor units, and the plurality of third semiconductor units of the third substrate, and simultaneously provides the second data signals to the plurality of first semiconductor units, the plurality of second semiconductor units, and the plurality of third semiconductor units, and simultaneously provides third data signals to the plurality of first semiconductor units, the plurality of second semiconductor units, and the plurality of third semiconductor units.

### Claim 14 (depends on 13)

The tiling device as claimed in claim 13, wherein
the third substrate further comprises at least one third data channel for receiving the third data signals, and
the number of the at least one first data channel, the number of the at least one second data channel, and a number of the at least one third data channel are identical to one another.

### Claim 15 (depends on 13)

The tiling device as claimed in claim 13, wherein
the third substrate further comprises at least one third data channel for receiving the third data signals, and
the number of the at least one first data channel, the number of the at least one second data channel, and a number of the at least one third data channel are completely different from one another.

### Claim 16 (depends on 12)

The tiling device as claimed in claim 12, wherein the scan driving circuit further provides third scan signals to the third substrate during a third time period, wherein the third time period is different from the first time period and the second time period.

### Claim 17 (depends on 6)

The tiling device as claimed in claim 6, further comprising:
a timing controller, coupled to the data driving circuit and the scan driving circuit and configured to provide a clock signal required by the data driving circuit during operation and to provide a clock signal and an initial signal required by the scan driving circuit during operation.

### Claim 18 (depends on 1)

The tiling device as claimed in claim 1, further comprising:
a gamma circuit, coupled to the data driving circuit and configured to perform digital-to-analog conversion on an image signal based on a gamma curve to generate voltage signals for generating the first data signals and the second data signals.

### Claim 19 (depends on 1)

The tiling device as claimed in claim 1, wherein the first substrate and the second substrate are tiling substrates, respectively.
