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EP-4322514-B1 - ELECTRONIC APPARATUS HAVING DISPLAY INCLUDING OPTICAL SENSOR

EP4322514B1EP 4322514 B1EP4322514 B1EP 4322514B1EP-4322514-B1

Inventors

  • SEO, DONGIL
  • PARK, JAEHYOUNG
  • Lee, Kihuk

Dates

Publication Date
20260506
Application Date
20220531

Claims (14)

  1. An electronic device (300) comprising: a front cover (320) forming a front surface of the electronic device; a rear cover (380) forming a rear surface opposite to the front surface; a display (330) placed between the front cover and the rear cover and visually exposed through the front cover; a first camera (710) disposed on the front surface; and a processor (120) operatively connected to the first camera and the display, wherein the display is divided into a display region (400) and a sensor region (420) when facing the front surface, and the electronic device is characterized by comprising: a light-emitting/light-receiving layer (460) comprising light-emitting diodes disposed in the display region (400), and at least one photodiode disposed in the sensor region (420); and a filter layer (470) placed between the front cover (320) and the light-emitting/light-receiving layer (460) and comprising light-emitting filters aligned with the light-emitting diodes in the display region (400), and at least one light-receiving filter aligned with the at least one photodiode in the sensor region (420), and wherein the processor (120) is configured to receive, from the at least one photodiode, light information related to light passed through the at least one light-receiving filter to be received by the at least one photodiode, and perform, by using the light information, a function related to an image acquired from the first camera (710) to be displayed on the display (330).
  2. The electronic device of claim 1, wherein the sensor region (420) comprises a first sensor region configured to recognize a light source type, and wherein the at least one light-receiving filter comprises: a first light-receiving filter (473a) disposed in the first sensor region and configured to filter out visible light and infrared light components from light received from the outside through the front cover (320); and a second light-receiving filter (473b) disposed in the first sensor region and configured to filter out a visible light component from light received from the outside through the front cover (320), and wherein the at least one photodiode comprises: a first photodiode (463a) aligned with the first light-receiving filter (473a) in the first sensor region and configured to respond to light having passed through the first light-receiving filter (473a); and a second photodiode (463b) aligned with the second light-receiving filter (473b) in the first sensor region and configured to respond to light having passed through the second light-receiving filter (473b).
  3. The electronic device of claim 2, wherein the processor (120) is configured to acquire information related to a light source type by using light information collected from the first photodiode (463a) and the second photodiode (463b), and correct a first image acquired from the first camera (710), based on the acquired information, to display the corrected first image on the display (330).
  4. The electronic device of claim 1, wherein the sensor region (420) comprises a second sensor region for measuring the illuminance around the electronic device, and wherein the at least one light-receiving filter comprises a third light-receiving filter (540) disposed in the second sensor region and configured to filter out a specified color component from light received from the outside through the front cover (320), and wherein the at least one photodiode comprises a third photodiode (520) aligned with the third light-receiving filter (540) in the second sensor region and configured to respond to light having passed through the third light-receiving filter 540).
  5. The electronic device of claim 4, wherein the processor (120) is configured to acquire information related to the illuminance around the electronic device by using light information collected from the third photodiode (520), and set the brightness of the display (330), based on the acquired information.
  6. The electronic device of claim 4, wherein the specified color component is a green component.
  7. The electronic device of claim 1, wherein the sensor region comprises a third sensor region for recognizing the proximity of an object (603) with respect to the electronic device, and wherein the filter layer (470) further comprises a first light-emitting/light-receiving filter (650) disposed in the third sensor region and configured to filter out a specified light component in a first wavelength band from incident light, and wherein the light-emitting/light-receiving layer further comprises: a first light-emitting diode (635) aligned with the first light-emitting/light-receiving filter (650) in the third sensor region and configured to generate light in the first wavelength band; and a fourth photodiode (645) configured to respond to light having passed through the first light-emitting/light-receiving filter (650).
  8. The electronic device of claim 7, wherein the filter layer (470) further comprises a second light-emitting/light-receiving filter (680) disposed in the third sensor region and configured to filter out a specified light component in a second wavelength band from incident light, and wherein the light-emitting/light-receiving layer (470) further comprises: a second light-emitting diode (665) aligned with the second light-emitting/light-receiving filter (680) in the third sensor region and configured to generate light in the second wavelength band; and a fifth photodiode (675) configured to respond to light having passed through the second light-emitting/light-receiving filter (680).
  9. The electronic device of claim 8, wherein one of the first wavelength band and the second wavelength band is a wavelength band corresponding to infrared light, and the other one is a wavelength band corresponding to green light.
  10. The electronic device of claim 1, wherein the outer edge of the display (330) is divided into a display upper region, a display lower region, a display left region, and a display right region when facing the front surface, and wherein the sensor region (420) is placed in at least one region of the display regions.
  11. The electronic device of claim 1, wherein the processor (120) is configured to receive light information from the at least one photodiode while a light-emitting diode placed around the at least one photodiode does not emit light.
  12. The electronic device of claim 11, wherein the processor (120) is further configured to activate the at least one photodiode and receive light information from the activated at least one photodiode, when the display (330) becomes dark before a screen to be displayed on the display is switched to an execution screen of a camera application.
  13. The electronic device of claim 11, further comprising a second camera (715) disposed on the rear surface, wherein the processor (120) is configured to activate the at least one photodiode at a time and receive light information from the at least one photodiode, when the display (330) becomes dark before an image to be displayed on the display (330) is switched from a second image acquired through the second camera (715) to a first image acquired through the first camera (710).
  14. The electronic device of claim 1, wherein the execution screen of the camera application to be displayed on the display (330) comprises: a first portion configured to interact with a user; a second portion configured to display an image acquired through the first camera (710); and a third portion configured to be dark, and wherein the sensor region (420) is placed in a display region corresponding to the third portion.

Description

[Technical Field] Various embodiments relate to an electronic device having a display including a light sensor. [Background Art] When a camera is used to capture an image of an object, the object in the image may have a distorted color, which is different from the proper color thereof, due to an external light source (e.g., a fluorescent lamp, an incandescent lamp, the sun, etc.). To correct this type of distortion, automatic white balance (AWB) may be used to determine the picture quality. For example, an electronic device may include a sensor for acquiring light information (e.g., an ambient light sensor (ALS), a flicker sensor, an illuminance sensor, etc.). The electronic device may also use light information, such as brightness, wavelength, type of light-emitting light source, etc., to correct images obtained from the camera, thereby removing color distortion. Document EP3806436A1 discloses a mobile terminal which includes: a housing, a cover plate, a display panel and a photographing module. [Summary] Embodiments of the invention are set out in the appended claims. The description and drawings may also present additional non-claimed embodiments, exemplary embodiments, examples, aspects and implementations for the better understanding of the claimed embodiments defined in the appended claims. [Disclosure of Invention] [Technical Problem] An electronic device may include a display that fills the entire front surface without a bezel. As result, a front camera and a light sensor may be disposed beneath the display, facing forwards. However, light information acquired by the light sensor may be distorted under the influence of the display. Consequently, the distortion by the display may adversely affect image correction. The disclosure has been made to address at least the above-mentioned problems and/or disadvantages and to provide at least the advantages described below. An aspect of the disclosure is to provide an electronic device that may acquire accurate light information from a light sensor disposed on a display. Another aspect of the disclosure is to provide an electronic device that may acquire accurate light information from a light sensor disposed on a display, and may use the acquired light information to perform a function related to an image to be displayed on the display, after being acquired from a camera. [Solution to Problem] In accordance with an aspect of the disclosure, an electronic device may include: a front cover forming a front surface of the electronic device; a rear cover forming a rear surface opposite to the front surface; a display placed between the front cover and the rear cover and visually exposed through the front cover; a first camera disposed on the front surface; and a processor operatively connected to the first camera and the display. The display may be divided into a display region and a sensor region when facing the front surface. The display may include: a light-emitting/light-receiving layer including light-emitting diodes disposed in the display region, and at least one photodiode disposed in the sensor region; and a filter layer placed between the front cover and the light-emitting/light-receiving layer and including light-emitting filters aligned with the light-emitting diodes in the display region, and at least one light-receiving filter aligned with the at least one photodiode in the sensor region. The processor may be configured to receive, from the at least one photodiode, light information related to light passed through the at least one light-receiving filter to be received by the at least one photodiode, and perform, by using the light information, a function related to an image acquired from the first camera to be displayed on the display. In accordance with another aspect of the disclosure, an electronic device may include: a front cover forming a front surface of the electronic device; a rear cover forming a rear surface opposite to the front surface; and a display placed between the front cover and the rear cover, visually exposed through the front cover, and divided into a display region and a sensor region for recognizing a light source, when facing the front surface. The display may include: a light-emitting/light-receiving layer including light-emitting diodes disposed in the display region, a first photodiode disposed in a first sub-sensor region of the sensor region, and a second photodiode disposed in a second sub-sensor region of the sensor region; and a filter layer placed between the front cover and the light-emitting/light-receiving layer and including light-emitting filters aligned with the light-emitting diodes in the display region, a first light-receiving filter aligned with the first photodiode in the first sub-sensor region, and a second light-receiving filter aligned with the second photodiode in the second sub-sensor region. The first light-receiving filter may filter out visible light and infrared light components from light rece