# US 2025/0098476 A1 · Methods and Configurations for Improving the Performance of Sensors under a Display

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- Number: US 2025/0098476 A1
- Document ID: US20250098476A1
- Status: Published application
- Kind: A1
- Application number: 18/969,642
- Filed: 2024-12-05
- Published: 2025-03-20
- Earliest claimed: 2019-04-23
- Assignees: Apple Inc.
- Applicants: Apple Inc.
- Inventors: Warren S. Rieutort-Louis; Woo Shik Jung; Abbas Jamshidi Roudbari; Shin-Hung Yeh; Christopher E. Glazowski; Jean-Pierre S. Guillou; Yuchi Che
- Web page: https://patentgrep.com/patent/US20250098476A1

## CPC

- H10K 59/88: Dummy elements, i.e. elements having non-functional features
- H10K 59/121: characterised by the geometry or disposition of pixel elements
- H10K 59/131: Interconnections, e.g. wiring lines or terminals
- H10K 59/353: {characterised by the geometrical arrangement of the RGB subpixels}
- H10K 59/40: OLEDs integrated with touch screens
- H10K 59/60: OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes
- H10K 59/65: OLEDs integrated with inorganic image sensors
- 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 2300/0426: Layout of electrodes and connections
- H10K 59/122: Pixel-defining structures or layers, e.g. banks
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- 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

An electronic device may include a display and a sensor under the display. The display may include an array of subpixels for displaying an image to a user of the electronic device. At least a portion of the array of subpixels may be selectively removed in a pixel removal region to improve optical transmittance to the sensor through the display. The pixel removal region may include a plurality of pixel free regions that are devoid of thin-film transistor structures, that are devoid of power supply lines, that have continuous open areas due to rerouted row/column lines, that are partially devoid of touch circuitry, that optionally include dummy contacts, and/or have selectively patterned display layers.

## Claims

### Claim 1

An electronic device comprising:
a display having first pixels of a first pixel density arranged in an active area of the display; and
a sensor under the display, wherein:
the display further comprises a sensor region that at least partially overlaps with the sensor;
the sensor region comprises second pixels of a second pixel density less than the first pixel density;
the sensor region further comprises pixel free regions devoid of thin-film transistors; and
the display further comprises an opaque mask having openings respectively aligned with the pixel free regions.

### Claim 2 (depends on 1)

The electronic device of claim 1, wherein the second pixels comprise blue subpixels and green subpixels smaller than the blue subpixels.

### Claim 3 (depends on 1)

The electronic device of claim 1, wherein the second pixels comprise blue subpixels and red subpixels smaller than the blue subpixels.

### Claim 4 (depends on 1)

The electronic device of claim 1, wherein the second pixels comprise a first number of blue subpixels and a second number of red subpixels equal to the first number of blue subpixels.

### Claim 5 (depends on 1)

The electronic device of claim 1, wherein the second pixels comprise a first number of blue subpixels and a second number of green subpixels greater than the first number of blue subpixels.

### Claim 6 (depends on 1)

The electronic device of claim 1, wherein the second pixels comprise a first number of red subpixels and a second number of green subpixels greater than the first number of red subpixels.

### Claim 7 (depends on 1)

The electronic device of claim 1, wherein the display further comprises:
power supply lines coupled to the second pixels and having distal ends terminating at the pixel free regions; and
data lines or gate lines coupled to the second pixels and having one or more turns disposed along peripheral edges of the pixel free regions.

### Claim 8

An electronic device comprising:
a display having first pixels of a first pixel density arranged in an active area of the display;
a sensor under the display, wherein the display further comprises a sensor region that at least partially overlaps with the sensor, wherein the sensor region comprises second pixels of a second pixel density less than the first pixel density, and wherein the sensor region further comprises pixel free regions devoid of thin-film transistors; and
a conductive touch sensor formed over the display, wherein the conductive touch sensor comprises conductive touch sensor mesh structures formed over the second pixels and mesh free regions aligned to the pixel free regions.

### Claim 9 (depends on 8)

The electronic device of claim 8, wherein the second pixels comprise:
blue subpixels; and
green subpixels smaller than the blue subpixel or red subpixels smaller than the blue subpixels.

### Claim 10 (depends on 8)

The electronic device of claim 8, wherein the second pixels comprise a first number of blue subpixels and a second number of red subpixels equal to the first number of blue subpixels.

### Claim 11 (depends on 8)

The electronic device of claim 8, wherein the second pixels comprise a first number of blue subpixels and a second number of green subpixels greater than the first number of blue subpixels.

### Claim 12 (depends on 8)

The electronic device of claim 8, wherein the second pixels comprise a first number of red subpixels and a second number of green subpixels greater than the first number of red subpixels.

### Claim 13 (depends on 8)

The electronic device of claim 8, wherein the display further comprises:
power supply lines coupled to the second pixels and having distal ends terminating at the pixel free regions; and
data lines or gate lines coupled to the second pixels and having one or more turns disposed along peripheral edges of the pixel free regions.

### Claim 14

An electronic device comprising:
a display having first pixels of a first pixel density arranged in an active area of the display; and
a sensor under the display, wherein the display comprises a sensor region that at least partially overlaps with the sensor, wherein the sensor region comprises second pixels of a second pixel density less than the first pixel density, and wherein the sensor region further comprises pixel free regions having dummy contacts configured to provide emission current uniformity in the sensor region.

### Claim 15 (depends on 14)

The electronic device of claim 14, wherein the second pixels comprise blue subpixels and green subpixels smaller than the blue subpixels.

### Claim 16 (depends on 14)

The electronic device of claim 14, wherein the second pixels comprise blue subpixels and red subpixels smaller than the blue subpixels.

### Claim 17 (depends on 14)

The electronic device of claim 14, wherein the second pixels comprise a first number of blue subpixels and a second number of red subpixels equal to the first number of blue subpixels.

### Claim 18 (depends on 14)

The electronic device of claim 14, wherein the second pixels comprise a first number of blue subpixels and a second number of green subpixels greater than the first number of blue subpixels.

### Claim 19 (depends on 14)

The electronic device of claim 14, wherein the second pixels comprise a first number of red subpixels and a second number of green subpixels greater than the first number of red subpixels.

### Claim 20 (depends on 14)

The electronic device of claim 14, wherein the display further comprises:
power supply lines coupled to the second pixels and having distal ends terminating at the pixel free regions; and
data lines or gate lines coupled to the second pixels and having one or more turns disposed along peripheral edges of the pixel free regions.
