Driving systems of display panels

Patent metadata

Field	Value
Publication number	US-10460644-B2
Application number	US-201715327633-A
Country	US
Kind code	B2
Filing date	Jan 13, 2017
Priority date	Dec 26, 2016
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

The present disclosure relates to a driving system of display panels. The driving system includes a main board and a display panel. The main board is configured with a driving chip, and the driving chip electrically connects to the display panel via a flexible circuit board to drive the display panel to display. With such configuration, the driving system is configured with the main board and the driving chip, and the driving chip is arranged on the main board, instead of the flexible circuit board. With such configuration, the space of the display area occupied by the components is reduced so as to realize the narrow border design for a top border and a bottom border of the display panel. In this way, the screen ratio of the display panel is increased.

First claim

What is claimed is:

1. A driving system of display panels, comprising:
a main board and a display panel, the main board being configured with a driving chip, the display panel comprising a display area and a non-display area configured below the display area, the non-display area comprising a lead unit, a splitter unit, a testing unit, and a fan-out unit arranged in sequence;
wherein sub-pixels in the display area electrically connect to the lead unit, the lead unit electrically connects to the splitter unit, the splitter unit and the testing unit electrically connect to the fan-out unit respectively, and the fan-out unit electrically connects to the driving chip, and the driving chip electrically connects to the display panel via a flexible circuit board to drive the display panel to display, and the flexible circuit board is a double-sided flexible circuit board.

2. The driving system as claimed in claim 1 , wherein the lead unit comprises signal lines connected with the sub-pixels in the display area; the signal lines comprises scanning lines, data lines, or a combination of scanning lines and data lines; and the lead unit is transformed into the splitter unit, and the number of the signal lines are reduced by the splitter unit.

3. The driving system as claimed in claim 2 , wherein the lead unit further comprises virtual sub-pixels which are not configured to display.

4. A driving system of display panels, comprising:
a main board and a display panel, the main board being configured with a driving chip, and the driving chip electrically connecting to the display panel via a flexible circuit board to drive the display panel to display;
wherein the display panel comprises a display area and a non-display area configured below the display area, the non-display area comprises a lead unit, a splitter unit, a testing unit, and a fan-out unit arranged in sequence;
wherein sub-pixels in the display area electrically connect to the lead unit, the lead unit electrically connects to the splitter unit, the splitter unit and the testing unit electrically connect to the fan-out unit respectively, and the fan-out unit electrically connects to the driving chip.

5. The driving system as claimed in claim 4 , wherein the flexible circuit board comprises a main body, a first connecting area, and a second connecting area;
wherein the fan-out unit electrically connects to the first connecting area via a bonding method, and the driving chip electrically connects to the second connecting area via the bonding method or a connector.

6. The driving system as claimed in claim 5 , wherein the connector is a top-pin connector.

7. The driving system as claimed in claim 5 , wherein material of the bonding method is an anisotropic conductive film.

8. The driving system as claimed in claim 4 , wherein the main board is further configured with a power regulation circuit electrically connecting to the driving chip, the power regulation circuit provides regulated power to the driving chip.

9. The driving system as claimed in claim 8 , wherein the main board is configured with a filter circuit electrically connecting to the power regulation circuit, and the filter circuit provides a filtering function to the power regulation circuit.

10. The driving system as claimed in claim 4 , wherein the flexible circuit board is a double-sided flexible circuit board.

11. The driving system as claimed in claim 4 , wherein the main board on the driving system further comprises a main chip electrically connecting to a driving chip, the main chip is configured to receive and parse video signals to obtain driving signals and timing signals, the driving chip receives the driving signals and the timing signals, and drives the display panel to display in accordance with the driving signals and the timing signals.

12. The driving system as claimed in claim 4 , wherein the lead unit comprises signal lines connected with the sub-pixels in the display area; the signal lines comprises scanning lines, data lines, or a combination of scanning lines and data lines; and the lead unit is transformed into the splitter unit, and the number of the signal lines are reduced by the splitter unit.

13. The driving system as claimed in claim 12 , wherein the lead unit further comprises virtual sub-pixels which are not configured to display.

Assignees

• Wuhan China Star Optoelectronics Technology Co Ltd

Inventors

• Guo Xingling
• Tan Xiaoping
• Li Man

Classifications

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G2380/02

  Flexible displays · CPC title

• G09F9/00

  Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) · CPC title

• G09G3/2092 Primary

  Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto (suitable for both CRT and flat panel G09G5/003; specific for a CRT G09G1/165) · CPC title

• H04M1/0277 Primary

  for a printed circuit board assembly · CPC title