# US 9,436,048 B2 · Display device and method of manufacturing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,436,048 B2 - Document ID: US9436048B2 - Status: Granted - Kind: B2 - Application number: 14/189,882 - Filed: 2014-02-25 - Published: 2015-06-04 - Granted: 2016-09-06 - Earliest claimed: 2013-11-29 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Joon Sam Kim; Jong Hwan Kim - Web page: https://patentgrep.com/patent/US9436048B2 ## CPC - G02F 1/13452: {Conductors connecting driver circuitry and terminals of panels} - G02F 2201/56: Substrates having a particular shape, e.g. non-rectangular - H05K 1/147: {at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence)} - H05K 2201/09027: Non-rectangular flat PCB, e.g. circular - H05K 2201/10128: Display - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract In an aspect, a display device comprising a panel having a circular surface and a pad unit which is disposed adjacent to an outer circumference of the panel and receives an external signal, wherein the pad unit is divided into a plurality of sub-pads, and the sub-pads are separated from each other is provided. ## Claims ### Claim 1 A display device comprising: a panel having a circular surface; a pad unit which is disposed adjacent to an outer circumference of the panel and receives a driving signal for the panel; and a base film on which a semiconductor chip is mounted, wherein the base film comprises a plurality of separate sub-films, and each of the sub-films comprises bumps connected to one of the sub-pads, wherein the driving signal includes gate signals and data signals, wherein the pad unit is divided into a plurality of sub-pads, and the sub-pads are separated from each other. ### Claim 2 (depends on 1) The display device of claim 1, wherein the bumps are formed to correspond to each of the sub-pads. ### Claim 3 (depends on 1) The display device of claim 1, wherein the sub-pads are separated by substantially equal distances. ### Claim 4 (depends on 1) The display device of claim 1, wherein the sub-pads are symmetrical with respect to a virtual line that connects a central point on the surface of the panel and a point on a side of the panel. ### Claim 5 (depends on 1) The display device of claim 1, wherein the sub-pads extend in a direction and have equal lengths. ### Claim 6 (depends on 1) The display device of claim 1, wherein the panel comprises a display area in which display elements are located and a non-display area which surrounds the display area, wherein the pad unit is formed in the non-display area. ### Claim 7 A display device comprising: a panel having a circular surface; a pad unit which is disposed adjacent to an outer circumference of the panel and receives a driving signal for the panel; and a base film on which a semiconductor chip is mounted, wherein the base film comprises a plurality of separate sub-films, and each of the sub-films comprises bumps connected to one of the sub-pads, wherein the driving signal includes gate signals and data signals, wherein the pad unit is divided into a plurality of sub-pads, and the sub-pads are arranged along a side of the panel to be separated from each other. ### Claim 8 (depends on 7) The display device of claim 7, wherein each of the sub-pads comprise a plurality of unit sub-pads, wherein each of the unit sub-pads forms a step difference with an adjacent unit sub-pad. ### Claim 9 (depends on 7) The display device of claim 7, wherein the sub-pads are symmetrical with respect to a virtual line that connects a central point on the surface of the panel and a point on the side of the panel. ### Claim 10 (depends on 7) The display device of claim 7, wherein the bumps are formed to correspond to each of the sub-pads. ### Claim 11 (depends on 7) The display device of claim 7, wherein each of the sub-films has a side rounded to correspond to the side of the panel. ### Claim 12 (depends on 7) The display device of claim 7, wherein the panel comprises a display area in which display elements are located and a non-display area which surrounds the display area, wherein the pad unit is formed in the non-display area. ### Claim 13 A display device comprising: a panel having a circular surface; a pad unit which is disposed adjacent to an outer circumference of the panel and receives a driving signal for the panel; and a film on which a semiconductor chip is mounted, wherein the film comprises a plurality of separate sub-films, and each of the sub-films comprises bumps connected to one of the sub-pads, wherein the driving signal includes gate signals and data signals, wherein the pad unit is divided into a plurality of sub-pads which are arranged along a side of the panel, wherein the sub-pads are separated from each other, and the sub-pads and the side of the panel are separated by equal distances. ### Claim 14 (depends on 13) The display device of claim 13, wherein each of the sub-pads comprise a plurality of unit sub-pads, wherein each of the unit sub-pads is placed toward a central point on the surface of the panel. ### Claim 15 (depends on 13) The display device of claim 13, wherein the bumps are formed to correspond to each of the sub-pads. ### Claim 16 (depends on 13) The display device of claim 13, wherein each of the sub-films has a side rounded to correspond to the side of the panel. ### Claim 17 (depends on 13) The display device of claim 13, wherein the panel comprises a display area in which display elements are located and a non-display area which surrounds the display area, wherein the pad unit is formed in the non-display area.