Image capturing apparatus

• US 10,056,439 B2
• Filed: 02/14/2018
• Issued: 08/21/2018
• Est. Priority Date: 12/11/2015
• Status: Active Grant

• Current Assignee: Gingy Technology Inc.
• Original Assignee: Gingy Technology Inc.
• Inventors: Chung, Chuck, Wu, Jen-Chieh
• Primary Examiner(s): Pervan, Michael
• Application Number:
  US15/896,083
• Publication Number:
  US 20180175125A1
• Time in Patent Office: 188 Days
• CPC Class Codes: G06V 40/12 Fingerprints or palmprints
• CPC Class Codes: G06V 40/1318 using electro-optical elements or layers, e.g. electroluminescent sensing
• CPC Class Codes: G06V 40/70 Multimodal biometrics, e.g. combining information from different biometric modalities
• CPC Class Codes: H04N 23/50 Constructional details
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 59/65 OLEDs integrated with inorganic image sensors
• CPC Class Codes: H10K 59/87 Passivation; Containers; Encapsulations

Abstract

An image capturing apparatus including a sensor, an organic light emitting diode (OLED) display panel, and a collimator is provided. The OLED display panel is disposed on an image capturing side of the sensor. The collimator is disposed between the OLED display panel and the sensor. The collimator includes a plurality of collimating devices overlapped with each other. Each of the collimating devices includes a transparent substrate and a light absorbing layer disposed on the transparent substrate. The light absorbing layer includes a plurality of light passing openings, and the light passing openings expose sensing areas of the sensor.

Claims

1. An image capturing apparatus, comprising:

a sensor;

an organic light emitting diode display panel, disposed on an image capturing side of the sensor; and

a collimator, disposed between the organic light emitting diode display panel and the sensor, the collimator comprising a plurality of collimating devices overlapped with each other, wherein each of the plurality of collimating devices comprises a transparent substrate and a light absorbing layer disposed on the transparent substrate, the light absorbing layer comprises a plurality of light passing openings, and the plurality of light passing openings exposes a plurality of sensing areas of the sensor,

wherein the organic light emitting diode display panel comprises an active device array layer, a planarization layer, a display device array layer, a passivation layer, and a cover plate, the planarization layer is disposed on the active device array layer and comprises a through hole, the through hole exposes a portion of the active device array layer, the display device array layer comprises an anode, a light emitting layer, and a cathode, the anode is disposed on the planarization layer and extends into the through hole to contact the portion of the active device array layer, the light emitting layer is disposed on the anode, the cathode is disposed on the light emitting layer, the passivation layer is disposed on the cathode, and the cover plate is disposed on the passivation layer,

wherein the organic light emitting diode display panel comprises a reflective layer disposed between the active device array layer and the collimator, and

wherein the reflective layer comprises a plurality of holes exposing the plurality of sensing areas of the sensor.

2. The image capturing apparatus of claim 1, wherein the organic light emitting diode display panel comprises a plurality of drill holes respectively penetrating the passivation layer, the display device array layer, the planarization layer, the active device array layer, and the reflective layer to expose the plurality of sensing areas of the sensor.

3. The image capturing apparatus of claim 2, wherein a distance between the plurality of light passing openings is S, a width of each of the plurality of light passing openings is W, W<

S, a transparent substrate thickness of a first collimating device of the plurality of collimating devices is T1, a transparent substrate thickness of a second collimating device of the plurality of collimating devices is T2, and the image capturing apparatus satisfies;

4. The image capturing apparatus of claim 3, wherein the image capturing apparatus satisfies:

5. The image capturing apparatus of claim 4, further comprising:

a light source; and

a bandpass filter layer, disposed between the organic light emitting diode display panel and the sensor, wherein a light spectrum of the light source falls within a transmission spectrum of the bandpass filter layer.

6. The image capturing apparatus of claim 3, wherein the image capturing apparatus satisfies:

7. The image capturing apparatus of claim 1, wherein a plurality of recesses are formed on a surface of the transparent substrate, and the light absorbing layer is disposed in the plurality of recesses of the transparent substrate.

8. The image capturing apparatus of claim 7, wherein a distance between the plurality of light passing openings is S, a width of each of the plurality of light passing openings is W, W<

S, a transparent substrate thickness of a first collimating device of the plurality of collimating devices is T1, a transparent substrate thickness of a second collimating device of the plurality of collimating devices is T2, and the image capturing apparatus satisfies;

9. The image capturing apparatus of claim 8, wherein the image capturing apparatus satisfies:

10. The image capturing apparatus of claim 8, wherein the image capturing apparatus satisfies:

11. The image capturing apparatus of claim 8, further comprising:

a light source; and

a bandpass filter layer, disposed between the organic light emitting diode display panel and the sensor, wherein a light spectrum of the light source falls within a transmission spectrum of the bandpass filter layer.

12. The image capturing apparatus of claim 1, wherein a distance between the plurality of light passing openings is S, a width of each of the plurality of light passing openings is W, W<

S, a transparent substrate thickness of a first collimating device of the plurality of collimating devices is T1, a transparent substrate thickness of a second collimating device of the plurality of collimating devices is T2, and the image capturing apparatus satisfies;

13. The image capturing apparatus of claim 12, wherein the image capturing apparatus satisfies:

14. The image capturing apparatus of claim 12, wherein the image capturing apparatus satisfies:

15. The image capturing apparatus of claim 14, further comprising:

a light source; and

a bandpass filter layer, disposed between the organic light emitting diode display panel and the sensor, wherein a light spectrum of the light source falls within a transmission spectrum of the bandpass filter layer.

16. The image capturing apparatus of claim 12, further comprising:

a light source; and

a bandpass filter layer, disposed between the organic light emitting diode display panel and the sensor, wherein a light spectrum of the light source falls within a transmission spectrum of the bandpass filter layer.

17. The image capturing apparatus of claim 1, further comprising:

a light source; and

a bandpass filter layer, disposed between the organic light emitting diode display panel and the sensor, wherein a light spectrum of the light source falls within a transmission spectrum of the bandpass filter layer.

18. The image capturing apparatus of claim 1, wherein the organic light emitting diode display panel comprises a plurality of drill holes respectively penetrating the cover plate, the passivation layer, the display device array layer, the planarization layer, the active device array layer, and the reflective layer to expose the plurality of sensing areas of the sensor.