# US 12,008,831 B2 · Sensing device substrate and display apparatus having the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,008,831 B2 - Document ID: US12008831B2 - Status: Granted - Kind: B2 - Application number: 17/355,179 - Filed: 2021-06-23 - Published: 2022-03-03 - Granted: 2024-06-11 - Earliest claimed: 2020-08-27 - Assignees: Au Optronics Corporation - Applicants: Au Optronics Corporation - Inventors: Ming-Yao Chen; Jui-Chi Lo; Wei-Ming Huang - Web page: https://patentgrep.com/patent/US12008831B2 ## CPC - G06V 40/1306: {non-optical, e.g. ultrasonic or capacitive sensing} - H10D 86/481: {integrated with passive devices, e.g. auxiliary capacitors} - H10D 86/60: wherein the TFTs are in active matrices - H10F 39/12: Image sensors - H10F 39/198: {Contact-type image sensors [CIS]} - G06V: IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES - H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION ## Abstract A sensing device substrate includes a substrate and a sensing device. The sensing device is disposed on the substrate and includes a first electrode, a second electrode, a sensing layer, a conductive layer, and a first insulating layer. The first electrode is located on the substrate. The second electrode is overlapped with the first electrode. The sensing layer is located between the second electrode and the first electrode. The conductive layer is overlapped with the second electrode and electrically connected to the first electrode. The conductive layer has a first opening, and the first opening is overlapped with the sensing layer. The first insulating layer is located between the conductive layer and the second electrode. A display apparatus including the sensing device substrate is also provided. ## Claims ### Claim 1 A sensing device substrate, comprising: a substrate; and a sensing device located on the substrate, wherein the sensing device comprises: a first electrode located on the substrate; a second electrode overlapped with the first electrode; a sensing layer located between the second electrode and the first electrode; a conductive layer overlapped with the second electrode and electrically connected to the first electrode, wherein the conductive layer has a first opening, and the first opening is overlapped with the sensing layer; and a first insulating layer located between the conductive layer and the second electrode, wherein the second electrode is disposed between the first electrode and the conductive layer, the sensing device comprises a first capacitance and a second capacitance, the first capacitance is comprised of the first electrode and a first portion of the second electrode that is overlapped with the sensing layer in top view, and the second capacitance is comprised of the conductive layer and a second portion of the second electrode that is not overlapped with the sensing layer and is overlapped with the conductive layer in top view. ### Claim 2 (depends on 1) The sensing device substrate of claim 1, wherein the sensing device further comprises a second insulating layer, and the second insulating layer is located between the second electrode and the first electrode and has a second opening, wherein the second opening is overlapped with the sensing layer. ### Claim 3 (depends on 2) The sensing device substrate of claim 2, wherein an area ratio of the first opening to the second opening is between 1/9 and 4/9. ### Claim 4 (depends on 1) The sensing device substrate of claim 1, wherein the first insulating layer is sandwiched between the conductive layer and the second electrode, the first insulating layer has a via, and the conductive layer is electrically connected to the first electrode through the via of the first insulating layer. ### Claim 5 (depends on 1) The sensing device substrate of claim 1, wherein the second electrode is a transparent electrode. ### Claim 6 (depends on 5) The sensing device substrate of claim 5, wherein the conductive layer is an opaque conductive layer. ### Claim 7 (depends on 1) The sensing device substrate of claim 1, wherein the second electrode is an opaque electrode and has a third opening, wherein the third opening is overlapped with the first opening. ### Claim 8 (depends on 7) The sensing device substrate of claim 7, wherein the third opening is smaller than the first opening. ### Claim 9 (depends on 1) The sensing device substrate of claim 1, further comprising a first signal line and a second signal line disposed on the substrate, wherein the first electrode is electrically connected to one of the first signal line and the second signal line, and the second electrode is electrically connected to the other of the first signal line and the second signal line. ### Claim 10 (depends on 1) A display apparatus, comprising: a pixel array substrate; and the sensing device substrate of claim 1 overlapped with the pixel array substrate. ### Claim 11 (depends on 10) The display apparatus of claim 10, wherein the pixel array substrate comprises a pixel electrode and a common electrode, and the conductive layer is electrically connected to the first electrode via one of the pixel electrode and the common electrode. ### Claim 12 (depends on 11) The display apparatus of claim 11, wherein the conductive layer is the other of the pixel electrode and the common electrode. ### Claim 13 (depends on 10) The display apparatus of claim 10, further comprising a cover substrate, wherein the sensing device substrate is located between the pixel array substrate and the cover substrate. ### Claim 14 (depends on 13) The display apparatus of claim 13, wherein the cover substrate comprises a light-shielding layer, the light-shielding layer has a fourth opening, and the fourth opening is overlapped with the first opening. ### Claim 15 (depends on 14) The display apparatus of claim 14, wherein the fourth opening is larger than the first opening. ### Claim 16 (depends on 15) The display apparatus of claim 15, wherein the sensing device further comprises a second insulating layer, and the second insulating layer is located between the second electrode and the first electrode and has a second opening, wherein the second opening is overlapped with the sensing layer. ### Claim 17 (depends on 10) The display apparatus of claim 10, further comprising a cover substrate, wherein the pixel array substrate is located between the sensing device substrate and the cover substrate. ### Claim 18 (depends on 17) The display apparatus of claim 17, wherein the sensing device substrate further comprises a dimming structure, the dimming structure is located between the sensing device and the pixel array substrate, the dimming structure has a fifth opening, and the fifth opening is overlapped with the first opening. ### Claim 19 (depends on 18) The display apparatus of claim 18, wherein the fifth opening is larger than the first opening.