# US 12,217,708 B2 · Display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,217,708 B2 - Document ID: US12217708B2 - Status: Granted - Kind: B2 - Application number: 18/541,885 - Filed: 2023-12-15 - Published: 2024-04-11 - Granted: 2025-02-04 - Earliest claimed: 2020-03-06 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Ji Seon Lee; Jin Sung An; Seok Je Seong; Seong Jun Lee; Se Wan Son - Web page: https://patentgrep.com/patent/US12217708B2 ## CPC - G09G 3/3291: in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/40: characterised by multiple TFTs - H10D 86/423: {comprising semiconductor materials not belonging to the Group IV, e.g. InGaZnO} - H10D 86/60: wherein the TFTs are in active matrices - G09G 2300/0426: Layout of electrodes and connections - H10K 59/1213: {the pixel elements being TFTs} - 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) - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes a substrate, a first active pattern, a first gate electrode, a second active pattern, a second gate electrode, a first connecting pattern, and a second connecting pattern. The first connecting pattern is disposed on the second active pattern and is electrically connected to the first gate electrode, and the second connecting pattern is disposed on the first connecting pattern and is electrically connected to the first connecting pattern and the second active pattern. ## Claims ### Claim 1 A display device, comprising: a substrate; a first transistor disposed above the substrate and including: a first active pattern covered by a first gate insulating layer; and a first gate electrode covered by a first interlayer insulating layer disposed between the first gate insulating layer and the first interlayer insulating layer, wherein the first transistor generates a driving current; a second transistor disposed above the first gate electrode and including: a second active pattern covered by a second gate insulating layer; and a second gate electrode covered by a second interlayer insulating layer disposed between the second gate insulating layer and the second interlayer insulating layer, wherein a first end of the second active pattern is electrically connected to a first end of the first active pattern, and a second end of the second active pattern is electrically connected to the first gate electrode of the first transistor; a first connecting pattern disposed above the second active pattern and connected to the first gate electrode; and a second connecting pattern disposed above the first connecting pattern and connected to the first connecting pattern and the second end of the second active pattern. ### Claim 2 (depends on 1) The display device of claim 1, wherein the second transistor diode-connects the first transistor and the second transistor is a compensation transistor that compensates for a threshold voltage of the first transistor. ### Claim 3 (depends on 2) The display device of claim 2, wherein the first connecting pattern is disposed in a same layer as the second gate electrode. ### Claim 4 (depends on 2) The display device of claim 2, wherein the second connecting pattern partially overlaps the first connecting pattern. ### Claim 5 (depends on 4) The display device of claim 4, wherein the first connecting pattern contacts the first gate electrode through a first contact hole overlapping the first connecting pattern and the first gate electrode, and the second connecting pattern does not overlap the first contact hole. ### Claim 6 (depends on 4) The display device of claim 4, wherein the second connecting pattern contacts the first connecting pattern through a second contact hole overlapping the first connecting pattern and the second connecting pattern. ### Claim 7 (depends on 4) The display device of claim 4, wherein the second connecting pattern contacts the second active pattern through a third contact hole overlapping the second connecting pattern and the second active pattern. ### Claim 8 (depends on 2) The display device of claim 2, further comprising: a storage capacitor electrode disposed above the first gate electrode, wherein a hole is defined through the storage capacitor electrode, and the second connecting pattern does not overlap the hole. ### Claim 9 (depends on 1) The display device of claim 1, further comprising: a shielding pattern disposed above the first connecting pattern, wherein the shielding pattern receives a constant voltage; and a data line disposed above the shielding pattern, wherein the data line overlaps the shielding pattern, and provides a data voltage. ### Claim 10 (depends on 9) The display device of claim 9, wherein the shielding pattern overlaps the first connecting pattern. ### Claim 11 (depends on 9) The display device of claim 9, wherein the shielding pattern is disposed between the data line and the first connecting pattern. ### Claim 12 (depends on 9) The display device of claim 9, wherein the constant voltage is a power voltage. ### Claim 13 (depends on 9) The display device of claim 9, further comprising: a power voltage line disposed above the shielding pattern, wherein the power voltage line provides the power voltage to the shielding pattern. ### Claim 14 (depends on 1) The display device of claim 1, wherein the data line is disposed above the second connecting pattern. ### Claim 15 (depends on 1) The display device of claim 1, further comprising: a first bottom gate electrode disposed under the second active pattern and electrically connected to the second gate electrode. ### Claim 16 (depends on 15) The display device of claim 15, wherein the first bottom gate electrode overlaps the second gate electrode. ### Claim 17 (depends on 15) The display device of claim 15, further comprising: a third gate electrode disposed above the second active pattern; and a second bottom gate electrode disposed under the second active pattern, overlapping the third gate electrode, and electrically connected to the third gate electrode. ### Claim 18 (depends on 1) The display device of claim 1, wherein the first active pattern includes polycrystalline silicon, and the second active pattern includes oxide semiconductor. ### Claim 19 (depends on 1) The display device of claim 1, further comprising: a light blocking pattern disposed above the second connecting pattern and overlapping the second active pattern. ### Claim 20 (depends on 1) The display device of claim 1, further comprising: a fourth gate electrode disposed between the first active pattern and the second active pattern, wherein the fourth gate electrode constitutes a transistor with the second active pattern.