# US 8,786,816 B2 · Display panel and manufacturing method for the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,786,816 B2 - Document ID: US8786816B2 - Status: Granted - Kind: B2 - Application number: 12/926,333 - Filed: 2010-11-10 - Published: 2011-09-29 - Granted: 2014-07-22 - Earliest claimed: 2010-03-23 - Assignees: Samsung Display Co., Ltd. - Applicants: Nam-Jin Kim - Inventors: Nam-Jin Kim - Web page: https://patentgrep.com/patent/US8786816B2 ## CPC - G02F 1/133351: {Manufacturing of individual cells out of a plurality of cells, e.g. by dicing} - G02F 1/1339: Gaskets; Spacers; Sealing of cells - 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 ## Abstract A display panel includes a first substrate, a second substrate facing the first substrate, a dam disposed between the first substrate and the second substrate along edges of the first and second substrates, the first substrate, second substrate, and dam having a same outermost incision surface, and a sealing member disposed between the first and second substrates, the sealing member being between an interior of the display panel and the dam. ## Claims ### Claim 1 A display panel, comprising: a first substrate; a second substrate facing the first substrate; a dam disposed between the first substrate and the second substrate along edges of the first and second substrates, the first substrate, second substrate, and dam having a same outermost incision surface; a sealing member disposed between the first and second substrates, the sealing member being between an interior of the display panel and the dam; and a driving circuit along a first side of the first substrate, the dam extending along three sides of the first substrate other than the first side of the first substrate, wherein the dam extends continuously only along the three different sides of the first substrate to define an approximate U-shape along respective edges of the three sides, and an outermost surface of the first substrate along the three different sides being substantially level with an outermost surface of the second substrate and the dam. ### Claim 2 (depends on 1) The display panel as claimed in claim 1, further comprising: a pixel electrode on the first substrate; and a common electrode on the second substrate. ### Claim 3 (depends on 2) The display panel as claimed in claim 2, wherein the common electrode includes indium tin oxide (ITO) or indium zinc oxide (IZO). ### Claim 4 (depends on 2) The display panel as claimed in claim 2, wherein an inner surface of the dam faces the interior of the display panel, the common electrode being only between the inner surface of the dam and the interior of the display panel. ### Claim 5 (depends on 1) The display panel as claimed in claim 1, wherein the dam includes a non-conductive material. ### Claim 6 (depends on 5) The display panel as claimed in claim 5, wherein the dam further comprises a column spacer configured to maintain a gap between the first and second substrates. ### Claim 7 (depends on 5) The display panel as claimed in claim 5, further comprising a color filter and an overcoat on the second substrate, the dam including a substantially same material as the overcoat. ### Claim 8 (depends on 1) The display panel as claimed in claim 1, wherein the sealing member includes a spacer. ### Claim 9 (depends on 8) The display panel as claimed in claim 8, wherein the spacer includes a non-conductive material. ### Claim 10 (depends on 8) The display panel as claimed in claim 8, wherein the spacer includes a conductive material. ### Claim 11 (depends on 10) The display panel as claimed in claim 10, wherein the spacer is electrically connected with a common electrode on the second substrate. ### Claim 12 (depends on 1) The display panel as claimed in claim 1, wherein the sealing member extends continuously along an entire perimeter of the second substrate, the dam being in direct contact with the sealing member only along three sides of the second substrate. ### Claim 13 (depends on 1) The display panel as claimed in claim 1, wherein a perimeter of the sealing member is completely enclosed between the driving circuit along the first side of the first substrate and the dam along the three other sides of the first substrate. ### Claim 14 (depends on 12) The display panel as claimed in claim 12, wherein the sealing member and the dam define a coplanar surface along the first side of the first substrate, the coplanar surface facing the driving circuit on the first substrate. ### Claim 15 A liquid crystal display panel, comprising: a first substrate; a second substrate facing the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; a dam disposed between the first substrate and the second substrate along edges of the first and second substrates, the dam including an insulating material and being spaced apart from the liquid crystal layer; a sealing member disposed between the first and second substrates, the sealing member being between the liquid crystal layer and the dam; and at least one conductive member having an end portion positioned on the first substrate or the second substrate, a terminal edge of the end portion being coplanar with a lateral surface of the sealing member, and the terminal edge of the end portion contacting the dam to be electrically blocked from the outside. ### Claim 16 (depends on 15) The liquid crystal display panel as claimed in claim 15, wherein the dam, the first substrate, and the second substrate have a same outermost incision surface. ### Claim 17 A manufacturing method of a liquid crystal display panel, comprising: defining a plurality of cells on first and second substrates, the first and second substrates facing each other; forming a thin film transistor in each cell on the first substrate; forming a color filter and a common electrode in each of the plurality of cells on the second substrate; forming a dam along boundaries of the defined cells on the second substrate; forming a sealing member on the second substrate adjacent to the dam, each sealing member being between an interior of a respective cell and the dam; forming a liquid crystal layer in the interior of each cell; forming a driving circuit area along a first side in each cell of the plurality of cells on the second substrate, such that the dam is formed along three sides, other than the first side, of each cell; sealing the first substrate and the second substrate, such that each of the dam and the sealing member is between the first and second substrates; and cutting out each cell through the dam, such that the dam is along edges of the first and second substrates in each cell, and the first substrate, second substrate, and dam having a same outermost incision surface, wherein the dam extends continuously only along the three different sides of the first substrate to define an approximate U-shape along respective edges of the three sides, and an outermost surface of the first substrate along the three different sides being substantially level with an outermost surface of the second substrate and the dam. ### Claim 18 (depends on 17) The manufacturing method as claimed in claim 17, wherein forming the sealing member includes depositing a sealant with a higher height than that of the dam. ### Claim 19 (depends on 17) The manufacturing method as claimed in claim 17, wherein the dam is formed of a non-conductive material.