# US 12,191,293 B2 · Display device and method for fabricating same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,191,293 B2 - Document ID: US12191293B2 - Status: Granted - Kind: B2 - Application number: 17/623,203 - Filed: 2021-12-16 - Published: 2024-01-25 - Granted: 2025-01-07 - Earliest claimed: 2021-12-10 - Assignees: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Shijuan Yi - Web page: https://patentgrep.com/patent/US12191293B2 ## CPC - H10W 90/00: Package configurations - H10D 86/021: {of multiple TFTs} - H10D 86/40: characterised by multiple TFTs - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT] - H10K 59/124: Insulating layers formed between TFT elements and OLED elements - Y02B 20/30: Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED] - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES - Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS ## Abstract A display device and a method for fabricating the same are provided. The display device includes a support substrate, a light-emitting chip, and a thin film transistor. The light-emitting chip is disposed on a side of the support substrate. The thin film transistor is disposed on a side of the light-emitting chip away from the support substrate. The thin film transistor is connected to the light-emitting chip. ## Claims ### Claim 1 A display device comprising: a support substrate; a light-emitting chip disposed on a side of the support substrate, wherein the light-emitting chip comprises a first electrode and a second electrode, and the first electrode is located on a side of the second electrode away from the support substrate; a thin film transistor disposed on a side of the light-emitting chip away from the support substrate and connected to the light-emitting chip, wherein the thin film transistor comprises a source and a drain; and a first signal transmission electrode disposed on the side of the light-emitting chip away from the support substrate, wherein the source is connected to the first signal transmission electrode, and the drain is connected to the first electrode. ### Claim 2 (depends on 1) The display device of claim 1, wherein the first signal transmission electrode is disposed on a side of the thin film transistor away from the light-emitting chip, the display device comprises a first drive electrode disposed on the side of the light-emitting chip away from the support substrate, arranged spaced apart from the thin film transistor, and connected between the drain and the first electrode. ### Claim 3 (depends on 2) The display device of claim 2, wherein the first drive electrode is arranged in the same layer as the drain and directly connected to the drain. ### Claim 4 (depends on 2) The display device according to claim 2, wherein the display device further comprises a bridging electrode arranged in the same layer as the first signal transmission electrode, and connecting the drain and the first drive electrode. ### Claim 5 (depends on 1) The display device of claim 1, wherein the thin film transistor further comprises a first gate and a second gate disposed on a side of the first gate away from the light-emitting chip, the source and the drain are disposed on a side of the second gate away from the light-emitting chip, the first signal transmission electrode and the source are arranged in the same layer, and the first signal transmission electrode is connected between the source and the second gate. ### Claim 6 (depends on 1) The display device of claim 1, wherein the display device comprises a second signal transmission electrode disposed on the side of the light-emitting chip away from the support substrate, and connected to the second electrode. ### Claim 7 (depends on 6) The display device of claim 6, wherein the second signal transmission electrode is disposed on a side of the thin film transistor away from the light-emitting chip; or the second signal transmission electrode and the source electrode are arranged in the same layer. ### Claim 8 (depends on 6) The display device of claim 6, wherein the display device comprises a second drive electrode disposed on a side of the light-emitting chip close to the support substrate, and connected between the second signal transmission electrode and the second electrode. ### Claim 9 (depends on 8) The display device of claim 8, wherein the display device comprises a connecting electrode connected between the second signal transmission electrode and the second drive electrode. ### Claim 10 (depends on 8) The display device of claim 8, wherein the second drive electrode is disposed corresponding to the second electrode and is a transparent electrode, the display device comprises a metal electrode disposed between the support substrate and the light-emitting chip and provided with an opening, the second drive electrode is disposed in the opening and electrically connected to the metal electrode, and the display device comprises a connecting electrode connected between the second signal transmission electrode and the metal electrode. ### Claim 11 (depends on 10) The display device of claim 10, wherein the thin film transistor comprises an active layer having an orthographic projection overlapping with the metal electrode on a plane where the metal electrode is located. ### Claim 12 (depends on 6) The display device of claim 6, wherein the second signal transmission electrode and the first signal transmission electrode are arranged in the same layer. ### Claim 13 (depends on 3) The display device of claim 3, wherein the display device comprises a second signal transmission electrode disposed on the side of the light-emitting chip away from the support substrate and connected to the second electrode; the second signal transmission electrode is disposed on the side of the thin film transistor away from the light-emitting chip; or the second signal transmission electrode and the source are arranged in the same layer. ### Claim 14 (depends on 13) The display device of claim 13, wherein the display device comprises a second drive electrode, a connecting electrode and a metal electrode, the second drive electrode is disposed on a side of the light-emitting chip close to the support substrate, the second drive electrode is connected between the second signal transmission electrode and the second electrode, disposed corresponding to the second electrode, and is a transparent electrode; the connecting electrode is connected between the second signal transmission electrode and the second drive electrode; and the metal electrode is disposed between the support substrate and the light-emitting chip and provided with an opening, and the second drive electrode is disposed in the opening and is electrically connected to the metal electrode. ### Claim 15 (depends on 4) The display device of claim 4, wherein the display device comprises a second signal transmission electrode disposed on the side of the light-emitting chip away from the support substrate and connected to the second electrode; and the second signal transmission electrode is disposed on the side of the thin film transistor away from the light-emitting chip; or the second signal transmission electrode and the source electrode are arranged in the same layer. ### Claim 16 (depends on 5) The display device of claim 5, wherein the display device comprises a second signal transmission electrode disposed on the side of the light-emitting chip away from the support substrate and connected to the second electrode; and the second signal transmission electrode is disposed on the side of the thin film transistor away from the light-emitting chip; or the second signal transmission electrode and the source are arranged in the same layer. ### Claim 17 (depends on 16) The display device of claim 16, wherein the display device comprises a second drive electrode, a connecting electrode and a metal electrode, the second drive electrode is disposed on a side of the light-emitting chip close to the support substrate, the second drive electrode is connected between the second signal transmission electrode and the second electrode, disposed corresponding to the second electrode, and is a transparent electrode; the connecting electrode is connected between the second signal transmission electrode and the second drive electrode; and the metal electrode is disposed between the support substrate and the light-emitting chip and provided with an opening, and the second drive electrode is disposed in the opening and is electrically connected to the metal electrode. ### Claim 18 (depends on 1) The display device of claim 1, wherein the display device comprises a flat layer disposed between the light-emitting chip and the thin film transistor and encapsulating the light-emitting chip. ### Claim 19 (depends on 1) The display device of claim 1, wherein the display device further comprises a drive component disposed on a side of the thin film transistor away from the light-emitting chip and connected to the thin film transistor. ### Claim 20 A display device comprising: a support substrate; a light-emitting chip disposed on a side of the support substrate, wherein the light-emitting chip comprises a first electrode and a second electrode, and the first electrode is located on a side of the second electrode away from the support substrate; a thin film transistor disposed on a side of the light-emitting chip away from the support substrate and connected to the light-emitting chip, wherein the thin film transistor comprises a source and a drain; a first signal transmission electrode disposed on the side of the light-emitting chip away from the support substrate, wherein the source is connected to the first signal transmission electrode, and the drain is connected to the first electrode; a first drive electrode disposed on the side of the light-emitting chip away from the support substrate, arranged spaced apart from the thin film transistor, and connected between the drain and the first electrode; and a second signal transmission electrode disposed on the side of the light-emitting chip away from the support substrate, and connected to the second electrode.