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Display drive chip, display drive chip assembly and display device

A display driver and display device technology, which is applied in the fields of display driver chip components, display driver chips, and display devices, can solve problems such as impedance mismatch and poor display, and achieve a wide range of devices, reduce display defects, and facilitate narrow frame design Effect

Inactive Publication Date: 2013-10-02
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problems to be solved by the present invention include, aiming at the problem of poor display caused by impedance mismatch in existing display devices, providing a display driver chip and a display driver chip with less display defects, high display quality, and easy realization of narrow frame design Components, Display Devices

Method used

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  • Display drive chip, display drive chip assembly and display device
  • Display drive chip, display drive chip assembly and display device
  • Display drive chip, display drive chip assembly and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 2 As shown, the present embodiment provides a display driver chip 1, which can be a gate driver IC (Gate Driver IC) for driving gate lines, or a data driver IC (Data Driver IC) for driving data lines. ) and other types of display driver chips 1 .

[0037] The display driver chip 1 has a plurality of output ports, and each output port is used to connect a driving line 71 (gate line, data line, common electrode line, etc., including the part located in the expansion area 91 and the part located in the display area 92). part) and provide a drive signal for it. The number of output ports of each display driver chip 1 is usually tens to hundreds, which can be determined according to its model.

[0038] Such as figure 2As shown, the display driver chip 1 of this embodiment is arranged on the printed circuit board 82, and the printed circuit board 82 is connected to the array substrate 9 through the flexible circuit board 81, and the output ports of the dis...

Embodiment 2

[0059] Such as image 3 As shown, this embodiment provides a display driver chip 1 assembly, which includes a display driver chip 1 and a flexible circuit board 81. The display driver chip 1 includes a plurality of output ports, and each output port is connected to a connection line on the flexible circuit board 81. 72, and the connecting line 72 is used to connect the driving line 71.

[0060] Preferably, the display driver chip 1 can be directly arranged on the flexible circuit board 81 , that is, the display driver chip 1 component is preferably a chip-on-chip film. At this time, the output port of the display driving chip 1 can be directly connected to the driving line 71 on the array substrate 9 through the connection line 72 on the flexible circuit board 81 .

[0061] Of course, the display driver chip 1 can also be disposed on the printed circuit board 82 , and the printed circuit board 82 is connected to the array substrate 9 through the flexible circuit board 81 .

...

Embodiment 3

[0069] This embodiment also provides a display device, which includes the above-mentioned display driving chip or display driving chip assembly.

[0070] Preferably, the display device of this embodiment is a liquid crystal display device or an organic light emitting diode display device. Specifically, the display device in this embodiment can be any product or component with a display function, such as electronic paper, mobile phone, tablet computer, television, monitor, notebook computer, digital photo frame, and navigator.

[0071] Of course, the display device should also include other known structures, such as an array substrate, a backlight source, a color filter substrate, a packaging substrate, a power supply, a frame, and the like.

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PUM

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Abstract

The invention provides a display drive chip, a display drive chip assembly and a display device, belongs to the field of the display technology, and can solve the problem, caused by unmatched impedances, of poor displaying of the conventional display device. The display drive chip provided by the invention comprises a plurality of output ports and a drive circuit, wherein the output port are used for outputting drive signals; the drive circuit is used for generating drive signals and connected with the output ports; a chip impedance matching unit with a certain impedance is arranged between at least one output port and the drive circuit. The invention can be used in a display device adopting an active drive array such as an LCD device and an organic LED display device, is particularly applicable to display devices adopting technologies of narrow frame, dual gate, triple gate and high frequency drive.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a display driving chip, a display driving chip assembly and a display device. Background technique [0002] Such as figure 1 As shown, in liquid crystal display devices, organic light emitting diode display devices (OLED) and other display devices that use active drive arrays, the drive lines 71 (gate lines, data lines, etc.) on the array substrate 9 are controlled by the display drive chip 1 ( Driver IC) (including gate drive chip and data drive chip) control drive. Wherein, the display driver chip 1 can be disposed on a printed circuit board 82 (PCB), the printed circuit board 82 is connected to a flexible circuit board 81 (FPC), and the flexible circuit board 81 is connected to the array substrate 9 . Of course, the display driver chip 1 can also be disposed on the flexible circuit board 81 to form a chip-on-film (COF), or the display driver chip 1 can also be d...

Claims

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Application Information

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IPC IPC(8): G09G3/36G09G3/32
CPCG02F1/13452G09G3/20G09G3/3225G09G3/3648G09G2300/0426G09G2320/0204G09G2320/0223
Inventor 张亮邵喜斌王丹许益祯孙志华吴行吉姚树林刘莎
Owner BOE TECH GRP CO LTD
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