# US 11,308,828 B2 · Display panel, display module and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,308,828 B2 - Document ID: US11308828B2 - Status: Granted - Kind: B2 - Application number: 16/770,599 - Filed: 2019-12-03 - Published: 2021-12-30 - Granted: 2022-04-19 - Earliest claimed: 2019-08-08 - Assignees: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Applicants: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd. - Inventors: Haifeng Wang - Web page: https://patentgrep.com/patent/US11308828B2 ## CPC - G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED} - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS ## Abstract The present application provides a display panel, a display module and a display device. In a non-display region of the display panel, exhaust holes are disposed inside arranging areas of alignment terminals. When attaching a support film in the non-display region, the exhaust holes serve as gas discharge channels to exhaust the gas located in the arranging areas of the alignment terminals and located between the support film and the display panel, thereby alleviating the problem of bubbles between the display panel and the support film in existing flexible displays. ## Claims ### Claim 1 A display panel, wherein in a non-display region, the display panel comprises: alignment terminals; and exhaust holes, formed inside arranging areas of the alignment terminals and penetrating the display panel, configured to exhaust bubbles generated when attaching the display panel to a support film. ### Claim 2 (depends on 1) The display panel according to claim 1, wherein the exhaust holes are disposed in locations where the alignment terminals are located. ### Claim 3 (depends on 2) The display panel according to claim 2, wherein only one exhaust hole is disposed in a location where one alignment terminal is located. ### Claim 4 (depends on 3) The display panel according to claim 3, wherein the exhaust hole is located at a center of the alignment terminal. ### Claim 5 (depends on 2) The display panel according to claim 2, wherein at least two exhaust holes are disposed in a location where one alignment terminal is located. ### Claim 6 (depends on 5) The display panel according to claim 5, wherein the exhaust holes are distributed uniformly in the location where the alignment terminal is located. ### Claim 7 (depends on 5) The display panel according to claim 5, wherein the exhaust holes are same in size and shape. ### Claim 8 (depends on 5) The display panel according to claim 5, wherein at least one of the exhaust holes is different from other exhaust holes in size, or at least one of the exhaust holes is different from other exhaust holes in shape. ### Claim 9 (depends on 2) The display panel according to claim 2, wherein an area of the exhaust hole occupies 30% to 60% of an area of the alignment terminal. ### Claim 10 (depends on 1) The display panel according to claim 1, wherein the exhaust hole is shaped as one or more of a circle, a quadrilateral and a cross. ### Claim 11 A display module, comprising: a display panel comprising alignment terminals and first exhaust holes in a non-display region, the first exhaust holes formed inside arranging areas of the alignment terminals and penetrating the display panel, the first exhaust holes configured to exhaust bubbles generated when attaching the display panel to a support film; and the support film, configured to support the display panel, comprising a first support film located in a display region and a second support film located in the non-display region. ### Claim 12 (depends on 11) The display module according to claim 11, wherein a plurality of second exhaust holes are disposed on the second support film, and the second exhaust holes are configured to exhaust bubbles generated when attaching the display panel to the second support film. ### Claim 13 (depends on 12) The display module according to claim 12, wherein a density of the second exhaust holes corresponding to the arranging areas of the alignment terminals is greater than a density of the second exhaust holes corresponding to other areas. ### Claim 14 (depends on 12) The display module according to claim 12, wherein the second exhaust holes are distributed uniformly over the second support film. ### Claim 15 (depends on 12) The display module according to claim 12, wherein the second exhaust holes are same in size and shape. ### Claim 16 (depends on 15) The display module according to claim 15, wherein the second exhaust holes and the first exhaust holes have a same shape, and the second exhaust holes and the first exhaust holes have a same size. ### Claim 17 (depends on 15) The display module according to claim 15, wherein the second exhaust holes and the first exhaust holes have different shapes, or the second exhaust holes and the first exhaust holes have different sizes. ### Claim 18 (depends on 11) The display module according to claim 11, wherein at least one of the second exhaust holes is different from other second exhaust holes in size, or at least one of the second exhaust holes is different from other second exhaust holes in shape. ### Claim 19 (depends on 11) The display module according to claim 11, wherein the second exhaust holes are shaped as one or more of a circle, a quadrilateral and a cross. ### Claim 20 A display device, comprising a display module, the display module comprising: a display panel, comprising alignment terminals and first exhaust holes in a non-display region, the first exhaust holes formed inside arranging areas of the alignment terminals and penetrating the display panel, the first exhaust holes configured to exhaust bubbles generated when attaching the display panel to a support film; and the support film, configured to support the display panel, comprising a first support film located in a display region and a second support film located in the non-display region.