# US 12,181,764 B2 · Liquid crystal panel and related manufacturing method > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,181,764 B2 - Document ID: US12181764B2 - Status: Granted - Kind: B2 - Application number: 18/509,461 - Filed: 2023-11-15 - Published: 2024-10-31 - Granted: 2024-12-31 - Earliest claimed: 2023-04-25 - Assignees: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTd. - Applicants: Guangzhou China Star Optoelectronics Semiconductor Display Technology Co., LTD. - Inventors: Shixin Zhou - Web page: https://patentgrep.com/patent/US12181764B2 ## CPC - G02F 1/1368: in which the switching element is a three-electrode device {(G02F1/136277 takes precedence)} - G02F 1/133553: {Reflecting elements (associated to illuminating devices G02F1/133605)} - G02F 1/133555: {Transflectors} - G02F 1/134318: {having a patterned common electrode} - G02F 1/134363: {for applying an electric field parallel to the substrate, i.e. in-plane switching [IPS]} - G02F 1/136286: {Wiring, e.g. gate line, drain line} - 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 liquid crystal panel including an array substrate, in which a common electrode layer is disposed on a substrate and includes a common electrode and a reflective portion, the common electrode is disposed corresponding to a pixel region, the reflective portion is disposed corresponding to a non-pixel region, a signal component is disposed corresponding to the non-pixel region, at least a part of the signal component is disposed on the reflective portion, an insulating unit layer is disposed on the signal component and covers the common electrode layer and the substrate, a pixel electrode is disposed corresponding to the pixel region on the insulating unit layer, and the pixel electrode and the common electrode are configured to generate an electric field. ## Claims ### Claim 1 A liquid crystal panel, comprising an array substrate, the array substrate comprising: a substrate; a common electrode layer, disposed on the substrate and comprising a common electrode and a reflective portion, wherein the common electrode is disposed corresponding to a pixel region, and the reflective portion is disposed corresponding to a non-pixel region located around the pixel region; a signal component, disposed corresponding to the non-pixel region, wherein at least a part of the signal component is disposed on the reflective portion; and an insulating unit layer, disposed on the signal component and covering the common electrode layer and the substrate; and a pixel electrode, disposed corresponding to the pixel region on the insulating unit layer. ### Claim 2 (depends on 1) The liquid crystal panel according to claim 1, wherein the reflective portion comprises a first transparent conductive layer and a reflective layer, and the first transparent conductive layer and the reflective layer are stacked on the substrate. ### Claim 3 (depends on 2) The liquid crystal panel according to claim 2, wherein the reflective portion further comprises a second transparent conductive layer, the first transparent conductive layer is disposed on the substrate, the reflective layer is disposed on the first transparent conductive layer, and the second transparent conductive layer is disposed on the reflective layer. ### Claim 4 (depends on 3) The liquid crystal panel according to claim 3, wherein the common electrode is connected to the first transparent conductive layer and the second transparent conductive layer, and a thickness of the common electrode is equal to a sum of a thickness of the first transparent conductive layer and a thickness of the second transparent conductive layer. ### Claim 5 (depends on 3) The liquid crystal panel according to claim 3, wherein the common electrode comprises a third transparent conductive layer and a fourth transparent conductive layer that are stacked, the third transparent conductive layer is disposed on the substrate; and the signal component comprises a common electrode line connected to the common electrode, the first transparent conductive layer and the third transparent conductive layer are connected and integrally formed, and the second transparent conductive layer and the fourth transparent conductive layer are connected and integrally formed. ### Claim 6 (depends on 5) The liquid crystal panel according to claim 5, further comprising an active layer, a source electrode, and a drain electrode, wherein the signal component comprises a gate electrode, and the insulating unit layer comprises a first insulating layer and a second insulating layer; and the gate electrode is disposed on the reflective portion, the first insulating layer covers the gate electrode, the common electrode, and the substrate; the active layer is disposed on the first insulating layer, the source electrode and the drain electrode are spaced apart on the active layer; the second insulating layer covers the source electrode, the drain electrode, the active layer, and the first insulating layer; the pixel electrode is disposed on the second insulating layer and connected to the source electrode or the drain electrode. ### Claim 7 (depends on 6) The liquid crystal panel according to claim 6, further comprising a first trace and a transfer line, wherein the first trace is disposed in a same layer as the source electrode, and the transfer line is disposed in a same layer as the pixel electrode; the signal component comprises a second trace disposed on the reflective portion and is disposed in a same layer as the gate electrode; and the transfer line is connected between the first trace and the second trace. ### Claim 8 (depends on 6) The liquid crystal panel according to claim 6, wherein the signal component further comprises a data line disposed in a same layer as the source electrode and disposed corresponding to the reflective portion. ### Claim 9 (depends on 3) The liquid crystal panel according to claim 3, wherein the first transparent conductive layer, the reflective layer, and the second transparent conductive layer are stacked to form a Bragg reflective structure. ### Claim 10 (depends on 1) The liquid crystal panel according to claim 1, further comprising a counter substrate disposed opposite to the array substrate, wherein the counter substrate comprises a black matrix, and the black matrix is disposed corresponding to the reflective portion. ### Claim 11 A method for manufacturing a liquid crystal panel, comprising: forming a common electrode layer on a substrate, wherein the common electrode layer comprises a common electrode corresponding to a pixel region and a reflective portion corresponding to a non-pixel region; forming a signal component on the reflective portion corresponding to the non-pixel region; forming an insulating unit layer on the substrate; and forming a pixel electrode on the insulating unit layer. ### Claim 12 (depends on 11) The method according to claim 11, wherein the forming the common electrode layer on the substrate comprises: sequentially forming a first transparent conductive material layer and a reflective material layer on the substrate; and patterning the first transparent conductive material layer and the reflective material layer to form a first transparent conductive layer, a reflective layer, and a third transparent conductive layer with a mask. ### Claim 13 (depends on 12) The method according to claim 12, wherein the first transparent conductive material layer is made of an oxide semiconductor material, and the reflective material layer is made of metallic material with reflective properties. ### Claim 14 (depends on 12) The method according to claim 12, wherein a thickness of the first transparent conductive material layer ranges between 50 angstroms and 100 angstroms. ### Claim 15 (depends on 12) The method according to claim 12, wherein the mask is a grayscale mask or a halftone mask. ### Claim 16 (depends on 11) The method according to claim 11, wherein the forming the signal component on the reflective portion corresponding to the non-pixel region, comprises: sequentially forming a second transparent conductive material layer and a first metal layer on the substrate; patterning the second transparent conductive material layer and the first metal layer to form a second transparent conductive layer, a fourth transparent conductive layer, and a gate electrode and a second trace of the signal component, wherein the first transparent conductive layer, the reflective layer, and the second transparent conductive layer are stacked to form the reflective portion, and the third transparent conductive layer and the fourth transparent conductive layer are stacked to form the common electrode. ### Claim 17 (depends on 16) The method according to claim 16, wherein the forming the insulating unit layer on the substrate, comprises: forming a first insulating layer covering the first metal layer and the common electrode layer; forming an active layer on the first insulating layer; forming a source electrode, a drain electrode, a first trace, and a data line on the first insulating layer; and forming a second insulating layer covering the source electrode, the drain electrode, the active layer. ### Claim 18 (depends on 16) The method according to claim 16, wherein the second transparent conductive material layer is made of an oxide semiconductor material. ### Claim 19 (depends on 16) The method according to claim 16, wherein a thickness of the second transparent conductive material layer ranges between 50 angstroms and 100 angstroms. ### Claim 20 (depends on 16) The method according to claim 16, wherein the forming the pixel electrode on the insulating unit layer comprises: forming the pixel electrode and a transfer line on the insulating unit layer, wherein the transfer line is connected to the first trace and the second trace.