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Flexible circuit film and display panel assembly having the same

一种柔性电路膜、显示面板的技术，应用在电路可弯曲/可拉伸的零部件、印刷电路零部件、印刷电路等方向，能够解决信号传输线不能很好地传输控制信号、劣化LCD装置显示质量等问题

Active Publication Date: 2007-06-20
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Cracked signal transmission lines do not transmit control signals well
Therefore, the crack formed in the signal transmission line of the flexible circuit film deteriorates the display quality of the LCD device

Method used

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  • Flexible circuit film and display panel assembly having the same
  • Flexible circuit film and display panel assembly having the same
  • Flexible circuit film and display panel assembly having the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 (display panel assembly)

[0029] FIG. 1 is a perspective view illustrating a display panel assembly according to a first exemplary embodiment of the present invention.

[0030] Referring to FIG. 1 , the display panel assembly 600 includes a first substrate 100 , a second substrate 200 , a liquid crystal layer 300 , a printed circuit board (PCB) 400 and a flexible circuit film 500 . The display panel assembly 600 displays images using light.

[0031] The first substrate 100 includes: a plurality of pixel electrodes arranged in a matrix; a plurality of thin film transistors (TFTs) applying a driving voltage to each pixel electrode; a plurality of signal lines providing a driving signal to each TFT.

[0032] A transparent conductive material such as indium tin oxide (ITO) film, indium zinc oxide (IZO) film, amorphous indium tin oxide (a-ITO) film, etc. is deposited and patterned by a photolithography process to form a pixel electrode.

[0033] The second s...

Embodiment 2

[0068] Embodiment 2 (display panel assembly)

[0069] The display panel assembly according to the present embodiment is substantially the same as the display panel assembly according to Embodiment 1 except for the features of the crack preventing portion. Accordingly, any further description of similar parts will be omitted, and substantially identical elements will be denoted by identical numerals and identical names.

[0070] 7 is a perspective view illustrating a flexible circuit film of a display panel assembly according to a second exemplary embodiment of the present invention. Fig. 8 is a sectional view taken along line III-III' in Fig. 7 .

[0071] Referring to FIGS. 7 and 8 , the flexible circuit film 500 according to the present invention includes a substrate 510 , a signal transmission line 520 , a protective layer 530 , a driving chip 540 and a crack prevention part 560 .

[0072] The substrate 510 may have a plate shape. The substrate 510 may contain ductile s...

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Abstract

A flexible circuit film whose signal lines are resistant to cracking even upon bending is presented. The flexible circuit film includes a base substrate, a signal transmission line and a crack-preventing portion. The signal transmission line is formed on a first surface of the base substrate. The crack-preventing portion is formed on a portion of a second surface of the base substrate that is opposite to the first surface to prevent cracking of the signal transmission line. The crack-preventing portion is formed on the part of the flexible circuit film that is bent by a large angle when the flexible circuit film is assembled with another component.

Description

technical field [0001] The present invention relates to a flexible circuit film and a display panel assembly with the flexible circuit film. More particularly, the present invention relates to a flexible circuit film that reduces the formation of cracks in signal transmission lines and a display panel assembly having the flexible circuit film. Background technique [0002] In general, a liquid crystal display (LCD) device corresponding to a flat panel display device displays images using electrical and optical characteristics of liquid crystals. LCD devices have excellent characteristics such as thin thickness, light weight, low driving voltage, low power consumption, and the like. Due to these advantages, LCD devices are widely used as display panels in various applications. [0003] The LCD device includes a display panel assembly and a backlight assembly that provides light to the display panel assembly. The display panel assembly displays imag...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/00H05K1/02G09F9/00
CPCG02F1/13452Y10T428/24917H05K3/361H05K1/0281H05K2201/09781H05K2201/09681H05K2201/2009G02F1/1345
Inventor 金沃珍
Owner SAMSUNG DISPLAY CO LTD
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