# US 2022/0044642 A1 · Backlight module and display device having same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0044642 A1 - Document ID: US20220044642A1 - Status: Published application - Kind: A1 - Application number: 17/052,837 - Filed: 2020-09-04 - Published: 2022-02-10 - Earliest claimed: 2020-08-05 - Assignees: Tcl China Star Optoelectronics Technology Co., Ltd. - Applicants: Tcl China Star Optoelectronics Technology Co., Ltd. - Inventors: Lixuan CHEN - Web page: https://patentgrep.com/patent/US20220044642A1 ## CPC - G09G 3/342: {using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines} - G09G 2300/0408: Integration of the drivers onto the display substrate - G09G 2300/0426: Layout of electrodes and connections - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) ## Abstract A backlight module and a display device having same are disclosed. The backlight module includes a light substrate, a plurality of backlight units, and a drive circuit. Among the backlight units driven by each drive unit, in a same row or a same column, at most two of the backlight units are arranged continuously beside each other, and these backlight units are not arranged in a quadrangular pattern. On a same light substrate, connecting wires between all the backlight units are disposed on a same layer. ## Claims ### Claim 1 A backlight module, comprising: at least one light substrate; a plurality of backlight units, distributed on the light substrate; and a drive circuit having a plurality of drive units each used for driving two or more of the backlight units; wherein among the backlight units driven by each of the drive units, in a same row or a same column, at most two of the backlight units are arranged continuously beside each other, and these backlight units are not arranged in a quadrangular pattern; on a same light substrate, connecting wires between all the backlight units are disposed on a same layer. ### Claim 2 (depends on 1) The backlight module as claimed in claim 1, wherein when the number of the backlight units driven by each of the drive units is two, the two backlight units are either adjacent to each other or not adjacent to each other. ### Claim 3 (depends on 1) The backlight module as claimed in claim 1, wherein when the number of the backlight units driven by each of the drive units is three, all the three backlight units are not adjacent to one another, or the three backlight units are adjacent to each other, or one of the three backlight units is not adjacent to one of the other two backlight units. ### Claim 4 (depends on 1) The backlight module as claimed in claim 1, wherein when the number of the backlight units driven by each of the drive units is more than three, a structure formed by the backlight units that are interconnected has a zigzag shape. ### Claim 5 (depends on 1) The backlight module as claimed in claim 1, wherein there are at most two types of the dive units, first drive units and second drive units, on a same light substrate; all the first drive units drives a same number and arrangement of the backlight units; all the second drive units drives a same number and arrangement of the backlight units; wherein there are a plurality of the first drive units; and there are at most two second drive units. ### Claim 6 (depends on 5) The backlight module as claimed in claim 5, wherein when an array of the backlight units driven by the first drive units extends in a direction of the row, the backlight units of each of the light substrate are arranged into an odd number of columns, and the backlight units driven by the second drive units are disposed in a first row or a last row of each light substrate. ### Claim 7 (depends on 5) The backlight module as claimed in claim 5, wherein when the array of the backlight units driven by the first drive units extends in a direction of the column, the backlight units of each of the light substrate are arranged into an odd number of rows, and the backlight units driven by the second drive units are disposed in a first column or a last column of each light substrate. ### Claim 8 (depends on 5) The backlight module as claimed in claim 5, wherein when the array of the backlight units driven by the first drive units extends in the direction of the row, the backlight units of each of the light substrate are arranged into an even number of columns, and the backlight units driven by the second drive units are disposed in the first row and the last row of each light substrate. ### Claim 9 (depends on 5) The backlight module as claimed in claim 5, wherein when the array of the backlight units driven by the first drive units extends in the direction of the column, the backlight units of each of the light substrate are arranged into an even number of rows, and the backlight units driven by the second drive units are disposed in the first column and the last column of each light substrate. ### Claim 10 (depends on 8) The backlight module as claimed in claim 8, wherein the drive units include third drive units, each of the third drive units drives two backlight units, wherein the two backlight units driven by a same third drive unit are disposed on different light substrates and are disposed in a same row or a same column, and wherein the backlight units driven by the third drive units and the backlight units driven by the second drive units are disposed on opposite sides of the light substrate. ### Claim 11 (depends on 1) The backlight module as claimed in claim 1, wherein each of the drive units comprises: a switch tube, wherein a source electrode of the switch tube is connected to a first node; a drive tube, wherein a gate electrode of the drive tube is connected to the first node; and a storage capacitor, wherein one end of the capacitor is connected with a negative voltage, and the other end of the capacitor is connected to the first node. ### Claim 12 (depends on 1) A display device, comprising the backlight module as claimed in claim 1, wherein the backlight module comprises: at least one light substrate; a plurality of backlight units, distributed on the light substrate; and a drive circuit having a plurality of drive units each used for driving two or more of the backlight units; wherein among the backlight units driven by each of the drive units, in a same row or a same column, at most two of the backlight units are arranged continuously beside each other, and these backlight units are not arranged in a quadrangular pattern; on a same light substrate, connecting wires between all the backlight units are disposed on a same layer. ### Claim 13 (depends on 12) The display device as claimed in claim 12, wherein when the number of the backlight units driven by each of the drive units is two, the two backlight units are either adjacent to each other or not adjacent to each other. ### Claim 14 (depends on 12) The display device as claimed in claim 12, wherein when the number of the backlight units driven by each of the drive units is three, all the three backlight units are not adjacent to one another, or the three backlight units are adjacent to each other; or one of the three backlight units is not adjacent to one of the other two backlight units. ### Claim 15 (depends on 12) The display device as claimed in claim 12, wherein when the number of the backlight units driven by each of the drive units is more than three, a structure formed by the backlight units that are interconnected has a zigzag shape. ### Claim 16 (depends on 12) The display device as claimed in claim 12, wherein there are at most two types of the dive units, first drive units and second drive units, on a same light substrate; all the first drive units drives a same number and arrangement of the backlight units; all the second drive units drives a same number and arrangement of the backlight units; wherein there are a plurality of the first drive units; and there are at most two second drive units. ### Claim 17 (depends on 16) The display device as claimed in claim 16, wherein when an array of the backlight units driven by the first drive units extends in a direction of the row, the backlight units of each of the light substrate are arranged into an odd number of columns, and the backlight units driven by the second drive units are disposed in a first row or a last row of each light substrate; and when the array of the backlight units driven by the first drive units extends in a direction of the column, the backlight units of each of the light substrate are arranged into an odd number of rows, and the backlight units driven by the second drive units are disposed in a first column or a last column of each light substrate. ### Claim 18 (depends on 16) The display device as claimed in claim 16, wherein when the array of the backlight units driven by the first drive units extends in the direction of the row, the backlight units of each of the light substrate are arranged into an even number of columns, and the backlight units driven by the second drive units are disposed in the first row and the last row of each light substrate; and when the array of the backlight units driven by the first drive units extends in the direction of the column, the backlight units of each of the light substrate are arranged into an even number of rows, and the backlight units driven by the second drive units are disposed in the first column and the last column of each light substrate. ### Claim 19 (depends on 17) The display device as claimed in claim 17, wherein the drive units include third drive units, each of the third drive units drives two backlight units, wherein the two backlight units driven by a same third drive unit are disposed on different light substrates and are disposed in a same row or a same column, and wherein the backlight units driven by the third drive units and the backlight units driven by the second drive units are disposed on opposite sides of the light substrate. ### Claim 20 (depends on 12) The display device as claimed in claim 12, wherein each of the drive units comprises: a switch tube, wherein a source electrode of the switch tube is connected to a first node; a drive tube, wherein a gate electrode of the drive tube is connected to the first node; and a storage capacitor, wherein one end of the capacitor is connected with a negative voltage, and the other end of the capacitor is connected to the first node.