# US 12,112,669 B2 · Display device and driving circuit structure > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,112,669 B2 - Document ID: US12112669B2 - Status: Granted - Kind: B2 - Application number: 18/297,003 - Filed: 2023-04-07 - Published: 2023-11-02 - Granted: 2024-10-08 - Earliest claimed: 2022-04-28 - Assignees: E Ink Holdings Inc. - Applicants: E Ink Holdings Inc. - Inventors: Shu-Fen Tsai; Chen-Yun Ma; Puru Howard Shieh; Chih-Ching Wang - Web page: https://patentgrep.com/patent/US12112669B2 ## CPC - G09G 3/035: {for flexible display surfaces} - G09G 3/20: for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix {no fixed position being assigned to or needed to be assigned to the individual characters or partial characters} - H10D 86/411: {characterised by materials, geometry or structure of the substrates} - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - H10W 72/50: Bond wires - H10W 90/00: Package configurations - G09G 2300/0426: Layout of electrodes and connections - H10W 72/90: Bond pads, in general - H10W 72/9445: {Top-view layouts, e.g. mirror arrays} - H10W 90/752: {between stacked chips} - 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 - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A display device includes a display region and a periphery region surrounding the display region. The display device includes an driving circuit substrate, a TFT array substrate, a front plane laminate, and multiple conductive wires. The driving circuit substrate includes multiple first conductive pads. The TFT array substrate includes multiple second conductive pads. The TFT array substrate is located on the driving circuit substrate. The TFT array substrate is located between the driving circuit substrate and the front plane laminate. The conductive wires are electrically connected with the first conductive pads and the second conductive pads, respectively. The first conductive pads and the second conductive pads are located in the periphery region. ## Claims ### Claim 1 A display device having a display region and a periphery region surrounding the display region, wherein the display device comprises: a driving circuit substrate comprising a plurality of first conductive pads; a TFT array substrate comprising a plurality of second conductive pads and a plurality of data lines extending along a first direction, wherein the TFT array substrate is located on the driving circuit substrate, the data lines are electrically connected with a portion of the second conductive pads, and the portion of the second conductive pads are located at opposite two sides of the display device along the first direction; a front plane laminate comprising a display medium layer, wherein the TFT array substrate is located between the driving circuit substrate and the front plane laminate; and a plurality of conductive wires electrically connected with the first conductive pads and the second conductive pads respectively, wherein the first conductive pads and the second conductive pads are located in the periphery region. ### Claim 2 (depends on 1) The display device of claim 1, wherein an orthogonal projection of the TFT array substrate on the driving circuit substrate is free from overlapping with the first conductive pads. ### Claim 3 (depends on 1) The display device of claim 1, wherein an area of the driving circuit substrate is greater than an area of the TFT array substrate. ### Claim 4 (depends on 1) The display device of claim 1, wherein the first conductive pads averagely surround the TFT array substrate. ### Claim 5 (depends on 1) The display device of claim 1, wherein the first conductive pads are located on a surface of the driving circuit substrate facing the TFT array substrate. ### Claim 6 (depends on 1) The display device of claim 1, wherein the second conductive pads averagely surround the front plane laminate. ### Claim 7 (depends on 1) The display device of claim 1, wherein the driving circuit substrate, the TFT array substrate, and the front plane laminate have a circular shape. ### Claim 8 (depends on 1) The display device of claim 1, wherein the TFT array substrate further comprises a plurality of scan lines extending along a second direction, the scan lines are electrically connected with a portion of the second conductive pads, and the portion of the second conductive pads are located at opposite two sides of the display device along the second direction. ### Claim 9 (depends on 1) The display device of claim 1, wherein the TFT array substrate further comprises a plurality of selection lines extending along a second direction, the selection lines are electrically connected with a portion of the second conductive pads, and the portion of the second conductive pads are located at opposite two sides of the display device along the second direction. ### Claim 10 (depends on 1) The display device of claim 1, wherein the driving circuit substrate further comprises a first pattern, and the TFT array substrate further comprises a second pattern matching the first pattern. ### Claim 11 A display device having a display region and a periphery region surrounding the display region, wherein the display device comprises: an driving circuit substrate comprising a plurality of first conductive pads, a plurality of first driving circuits, and a driver connection region, wherein the driver connection region is located at a side of the driving circuit substrate, and opposite two sides of each one of the first driving circuits are electrically connected with one of the first conductive pads and connected with the driver connection region; a TFT array substrate comprising a plurality of second conductive pads, wherein the TFT array substrate is located on the driving circuit substrate; a front plane laminate comprising a display medium layer, wherein the TFT array substrate is located between the driving circuit substrate and the front plane laminate; and a plurality of conductive wires electrically connected with the first conductive pads and the second conductive pads respectively, and wherein when viewed in a top view, an orthogonal projection of the driver connection region is in a boundary formed by the driving circuit substrate and the TFT array substrate collectively. ### Claim 12 (depends on 11) The display device of claim 11, wherein the driving circuit substrate further comprises a plurality of common voltage circuits, and opposite two sides of each one of the common voltage circuit are electrically connected with one of the first conductive pads and connected with the driver connection region. ### Claim 13 (depends on 12) The display device of claim 12, wherein one of the first conductive pads is electrically connected with more than one of the common voltage circuits. ### Claim 14 (depends on 11) The display device of claim 11, wherein the boundary collectively formed by the driving circuit substrate, the TFT array substrate, and the front plane laminate has a circular shape. ### Claim 15 A driving circuit structure, applied in a display device, wherein the driving circuit structure comprises: an driving circuit substrate comprising a driver connection region, wherein the driver connection region is located at a side of the driving circuit substrate; and a TFT array substrate located on the driving circuit substrate and a plurality of second conductive pads, wherein the TFT array substrate further comprises a plurality of data lines extending along a first direction and a plurality of scan lines extending along a second direction, the data lines are electrically connected with a portion of the second conductive pads, the scan lines are electrically connected with a portion of the second conductive pads, and the portion of the second conductive pads are located at opposite two sides of the display device along the second direction, and wherein when viewed in a top view, an orthogonal projection of the driver connection region is in a boundary form by the driving circuit substrate and the TFT array substrate collectively.