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US 11,388,820 B2Granted
Driving circuit board and display apparatus
AssigneesBeijing Boe Display Technology Co., Ltd., Boe Technology Group Co., Ltd.
InventorsJunjie Guo, Zhihua Sun, Shulin Yao
Life of this patent
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Abstract
A driving circuit board includes: a circuit connection board having a first surface and a second surface that is opposite to the first surface in a thickness direction of the circuit connection board; at least one driver integrated circuit (IC) disposed on the first surface of the circuit connection board; and a printed circuit board assembly (PCBA) bonded to the second surface of the circuit connection board.
Claims11
A driving circuit board, comprising:
- a circuit connection board, having a first surface and a second surface that is opposite to the first surface in a thickness direction of the circuit connection board;
- at least one driver integrated circuit (IC) disposed on the first surface of the circuit connection board;
- and
- a printed circuit board assembly (PCBA) bonded to the second surface of the circuit connection board, wherein
- the circuit connection board has a first region, a second region, and a third region located between the first region and the second region;
- the second region 1 s closer to the PCBA than the first region, wherein
- the circuit connection board includes:
- a plurality of first pads disposed in the first region, wherein surfaces of the plurality of first pads facing away from the second surface are within the first surface;
- and
- a plurality of second pads disposed in the second region, wherein surfaces of the plurality of second pads facing away from the first surface are within the second surface;
- the at least one driver IC is located in the third region;
- the PCBA is bonded to the circuit connection board via the plurality of second pads;
- the PCBA is within the second region of the circuit connection board along a first direction;
- a boundary of the first region away from the second region is a first side surface of the circuit connection board;
- a boundary of the second region away from the first region is a second side surface of the circuit connection board;
- the second side surface is opposite to the first side surface;
- and
- the first direction is a direction from the first side surface to the second side surface or a direction from the second side surface to the first side surface;
- wherein the PCBA includes:
- a printed circuit board;
- a timing controller disposed on a surface of the printed circuit board facing the circuit connection board, wherein the timing controller is configured to convert an image data signal into a signal suitable for the driver IC and output the signal to the driver IC;
- and
- a power management integrated circuit (PMIC) disposed on the surface of the printed circuit board facing the circuit connection board, wherein the PMIC is configured to provide operating voltages.
20 more elements
Dependencies are inferred from the claim text.