# US 2023/0273484 A1 · Display panel 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 2023/0273484 A1 - Document ID: US20230273484A1 - Status: Published application - Kind: A1 - Application number: 18/079,794 - Filed: 2022-12-12 - Published: 2023-08-31 - Earliest claimed: 2022-02-28 - Assignees: Mianyang Hkc Optoelectronics Technology Co., Ltd.; Hkc Corporation Limited - Applicants: Mianyang Hkc Optoelectronics Technology Co., Ltd.; Hkc Corporation Limited - Inventors: XINGHAO XUE - Web page: https://patentgrep.com/patent/US20230273484A1 ## CPC - G02F 1/133377: {Cells with plural compartments or having plurality of liquid crystal microcells partitioned by walls, e.g. one microcell per pixel} - G02F 1/13396: {Spacers having different sizes} - G02F 1/13394: {spacers regularly patterned on the cell subtrate, e.g. walls, pillars (G02F1/133377 takes precedence)} - 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 and a display device are disclosed. The display panel includes a first substrate, a second substrate, and a liquid crystal. The first substrate and the second substrate are aligned and assembled together. The liquid crystal is filled between the first substrate and the second substrate. The display panel further includes a retaining wall that is arranged on the first substrate and that extends toward the second substrate. The retaining wall divides a display region of the display panel into at least two partitions. The liquid crystal is filled in the at least two partitions. The retaining wall obstructs the liquid crystal from flowing across the different partitions. ## Claims ### Claim 1 A display panel, comprising a first substrate, a second substrate, and a liquid crystal; wherein the first substrate and the second substrate are aligned and assembled together, and wherein the liquid crystal is filled between the first substrate and the second substrate; wherein the display panel further comprises a retaining wall that is disposed on the first substrate and that extends toward the second substrate; wherein the retaining wall divides a display region of the display panel into at least two partitions; wherein the liquid crystal is filled in the at least two partitions, and the retaining wall is operative to obstruct the liquid crystal from flowing across different partitions. ### Claim 2 (depends on 1) The display panel of claim 1, further comprising a plurality of signal lines that are arranged in a crisscross pattern to form a plurality of pixel regions; wherein the retaining wall is arranged corresponding to the signal lines, and divides the display region of the display panel into a plurality of rectangular partitions; wherein a size of each of the plurality of rectangular partitions is greater than or equal to 1 cm*1 cm. ### Claim 3 (depends on 2) The display panel of claim 2, wherein the plurality of rectangular partitions each have an equal size. ### Claim 4 (depends on 2) The display panel of claim 2, further comprising a black matrix disposed corresponding to the plurality of signal lines, wherein a width of the retaining wall is smaller than or equal to a width of the black matrix. ### Claim 5 (depends on 1) The display panel of claim 1, further comprising a main spacer and an auxiliary spacer; wherein one end of the main spacer abuts against the first substrate, and another end of the main spacer abuts against the second substrate; wherein a height of the auxiliary spacer is less than a height of the main spacer; and wherein a height of the retaining wall is smaller than the height of the main spacer and greater than or equal to the height of the auxiliary spacer. ### Claim 6 (depends on 5) The display panel of claim 5, wherein the retaining wall is made of an identical material with that of the main spacer; wherein the main spacer comprises at least a first main spacer, which comprises the retaining wall and a boss disposed on the retaining wall; wherein one end of the boss facing away from the retaining wall abuts against the second substrate. ### Claim 7 (depends on 5) The display panel of claim 5, wherein one end of the auxiliary spacer is disposed on the first substrate, and wherein another end of the auxiliary spacer is suspended from the second substrate; wherein a protruding structure is disposed on the second substrate and abuts with the auxiliary spacer and/or the retaining wall to constitute the main spacer. ### Claim 8 (depends on 1) The display panel of claim 1, further comprising a main spacer and an auxiliary spacer; wherein one end of the main spacer abuts with the first substrate, and another end of the main spacer abuts with the second substrate; wherein a height of the auxiliary spacer is less than a height of the main spacer; a height of the retaining wall is equal to the height of the main spacer; wherein the retaining wall divides the display region of the display panel into at least two partitions, and at least one gap is defined in the retaining wall between adjacent partitions, and the liquid crystal is operative to flow between different partitions through the at least one gap. ### Claim 9 (depends on 8) The display panel of claim 8, wherein a material of the retaining wall is identical with that of the main spacer; wherein the main spacer comprises at least a first main spacer, which comprises the retaining wall and a boss disposed on the retaining wall; wherein one end of the boss facing away from the retaining wall abuts against the second substrate. ### Claim 10 (depends on 8) The display panel of claim 8, wherein one end of the auxiliary spacer is disposed on the first substrate, and another end of the auxiliary spacer is suspended from the second substrate; wherein the second substrate comprises a protruding structure, which abuts with the auxiliary spacer and/or the retaining wall to constitute the main spacer. ### Claim 11 (depends on 10) The display panel of claim 10, wherein the boss and the retaining wall are integrally formed. ### Claim 12 (depends on 10) The display panel of claim 10, wherein a density of the second main spacers is greater than that of the first main spacers. ### Claim 13 (depends on 8) The display panel of claim 8, wherein one end of the auxiliary spacer is disposed on the first substrate, and another end of the auxiliary spacer is suspended from the second substrate; wherein the second substrate comprises a protruding structure, which abuts with the auxiliary spacer to constitute the main spacer. ### Claim 14 (depends on 13) The display panel of claim 13, wherein a number of the protruding structures is greater than a half of a number of the auxiliary spacers. ### Claim 15 (depends on 13) The display panel of claim 13, wherein an area of a surface of the protruding structure that abuts against the auxiliary spacer is set to be larger than an area of a surface of the auxiliary spacer that abuts against the protruding structure and smaller than an area of a surface of the black matrix at a corresponding position. ### Claim 16 (depends on 8) The display panel of claim 8, wherein one end of the auxiliary spacer is disposed on the first substrate, and another end of the auxiliary spacer is suspended from the second substrate; wherein the second substrate comprises a protruding structure, which abuts with the auxiliary spacer to constitute the main spacer; wherein an area of a surface of the protruding structure that abuts against the retaining wall is set to be larger than an area of a surface of the retaining wall that abuts against the protruding structure and smaller than an area of a surface of the black matrix at a corresponding position. ### Claim 17 (depends on 1) The display panel of claim 1, wherein the retaining wall adopts any one of a spacer material, a color filter material, and/or a planarization layer material. ### Claim 18 (depends on 2) The display panel of claim 2, wherein a size of the rectangular partition corresponding to a central portion of the display region of the display panel is smaller than a size of the rectangular partition corresponding to an edge portion of the display region. ### Claim 19 A display panel, comprising a first substrate, a second substrate, and a liquid crystal; wherein the first substrate and the second substrate are aligned and assembled together, and the liquid crystal is filled between the first substrate and the second substrate; wherein the display panel further comprises a retaining wall that is disposed on the first substrate and that extends toward the second substrate; wherein the retaining wall divides a display region of the display panel into at least two partitions, and the liquid crystal is filled in the at least two partitions; the retaining wall is operative to obstruct the liquid crystal from flowing across different partitions; wherein the display panel further comprises a plurality of signal lines that are arranged in a crisscross pattern to form a plurality of pixel regions; wherein the retaining wall is arranged corresponding to the plurality of signal lines and divides the display region of the display panel into a plurality of rectangular partitions; wherein a size of each of the rectangular partitions is greater than or equal to 1 cm*1 cm; wherein the display panel further comprises a black matrix disposed corresponding to the plurality of signal lines, wherein a width of the retaining wall is smaller than or equal to a width of the black matrix. ### Claim 20 A display device, comprising a backlight module and a display panel, wherein the backlight module is arranged on a side of a light incident surface of the display panel; the display panel comprises a first substrate, a second substrate, and a liquid crystal, wherein the first substrate and the second substrate are aligned and assembled together, and the liquid crystal is filled between the first substrate and the second substrate; wherein the display panel further comprises a retaining wall that is disposed on the first substrate and that extends toward the second substrate; wherein the retaining wall divides a display region of the display panel into at least two partitions, and the liquid crystal is filled in the at least two partitions; the retaining wall is operative to obstruct the liquid crystal from flowing across different partitions; wherein the display panel further comprises a plurality of signal lines that are arranged in a crisscross pattern to form a plurality of pixel regions; wherein the retaining wall is arranged corresponding to the plurality of signal lines and divides the display region of the display panel into a plurality of rectangular partitions; and wherein a size of each of the rectangular partitions is greater than or equal to 1 cm*1 cm.