Flat display panel with framing for flexible substrate folding

• US 4,862,153 A
• Filed: 05/29/1987
• Issued: 08/29/1989
• Est. Priority Date: 05/30/1986
• Status: Expired due to Term

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Nakatani, Hiroshi, Kawaguchi, Hisao, Nakabu, Shigeo
• Primary Examiner(s): Groody, James J.
• Assistant Examiner(s): Powell, Mark R.
• Application Number:
  US07/055,527
• Time in Patent Office: 823 Days
• Field of Search: 340/758, 340/765, 340/784, 340/718, 340/719, 340/815.2, 350/335, 350/336, 350/344, 350/331 R, 350/339 R, 313/511
• US Class Current: 345/80
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels
• CPC Class Codes: H05K 3/361 Assembling flexible printed circuits with other printed circuits

Abstract

A flat matrix display panel having every side connected to an end of a flexible wiring substrate with an LSI chip loaded thereon. The flexible wiring substrate is formed into an S shape cross section by folding the substrate along an upper and a lower frames. The LSI chip is located near the center of the S-shaped substrate. The other end of the flexible wiring substrate is connected to a PC board which has other circuit components mounted thereon.

Claims

1. A display panel comprising:

a flexible substrate having an LSI chip mounted to substantially a middle portion thereof;

a flat display panel element connected to a first end portion of said flexible substrate;

a first frame positioned adjacent to said display element, said flexible substrate having a second portion folded about said first frame; and

a second frame positioned opposite to said second portion of said flexible substrate, said first frame and said display element, said flexible substrate having said middle portion constrained between said first and second frames, said second frame having a recess for positioning said LSI chip.

2. The display panel of claim 1, further comprising a printed circuit board connected to a third portion of said flexible substrate between said third portion and said second frame means, said printed circuit board projecting from said flexible substrate for mounting circuit components thereon.

3. The display panel of claim 1, wherein said flexible substrate is a wide tape carrier.

4. The display panel of claim 1, wherein said display element means is a liquid crystal display.

5. The display panel of claim 1, wherein said display element means is an electro luminescent display.

6. A display panel comprising:

a flat panel display element having a terminal edge;

a flexible substrate having an LSI chip mounted at substantially a middle portion, said flexible substrate being arranged to wrap around said terminal edge of said flat panel display element; and

a frame to aid and constrain the routing of said flexible substrate to enable first and second controlled direction reversals thereof, said frame having a recess for positioning said LSI chip.

7. The display panel of claim 6, wherein said frame comprises an upper frame portion for enabling said first controlled direction reversal and having said recess for positioning said LSI chip and a lower frame portion positioned opposite to said upper frame portion for enabling said second controlled direction reversal of said flexible substrate.

8. The display panel of claim 7, further comprising a printed circuit board connected between said flexible substrate and said lower frame.