Electronic component board and display panel

Patent metadata

Field	Value
Publication number	US-10964284-B2
Application number	US-201916557206-A
Country	US
Kind code	B2
Filing date	Aug 30, 2019
Priority date	Sep 5, 2018
Publication date	Mar 30, 2021
Grant date	Mar 30, 2021

Abstract

An electronic component board includes a signal line area in which signal lines extend in parallel to each other and a frame area that surrounds the signal line area. In the frame area, terminals, connection lines that connect the signal lines and the terminals, and circuits that are arranged along a portion of an outline of the signal line area and on respective line paths of the connection lines. The connection lines are routed such that an entire outline thereof is formed in a fan shape so as to be narrowed from the signal lines toward the terminals. The circuits include a first circuit and a second circuit. The second circuit has a small X-dimension in an arrangement direction of the circuits and a large Y-dimension in a perpendicular direction.

First claim

The invention claimed is:

1. An electronic component board comprising:
a signal line area where signal lines extend; and
a frame area surrounding the signal line area, wherein
in the frame area, terminals through which an external signal is input to the signal lines, connection lines connecting the signal lines and the terminals, and circuits are disposed, and the circuits are disposed between the signal line area and the terminals and arranged on line paths of the connection lines and arranged along a portion of an outline of the signal line area,
the connection lines are routed such that an entire outline thereof is formed in a fan shape so as to be narrowed from the signal lines toward the terminals,
the circuits include a first circuit and a second circuit,
the first circuit has an arrangement dimension in an arrangement direction of the circuits greater than that of the second circuit, and has a perpendicular dimension in a perpendicular direction perpendicular to the arrangement direction smaller than that of the second circuit, and
wherein the first circuit and the second circuit are crossing sections of the signal lines and an auxiliary line that is used as a detour line when the signal lines are disconnected.

2. The electronic component board according to claim 1 , wherein
the first circuits and one of the terminals that are connected with one of the connection lines are disposed with a displacement in the arrangement direction that is greater than a displacement of the second circuit and another one of the terminals that are connected with another one of the connection lines, and
the one connection line connecting the one terminal and the first circuit is inclined at an angle θ 1 with respect to the arrangement direction and the other connection line connecting the other terminal and the second circuit is inclined at an angle θ 2 with respect to the arrangement direction and the angle θ 1 and the angle θ 2 satisfy |tan θ 1 |<|tan θ 2 |.

3. The electronic component board according to claim 1 , wherein
the first circuit includes a first circuit component and the second circuit includes a second circuit component, and
the first circuit component differs from the second circuit component in at least one of a shape, a direction, a number, and an arrangement direction if multiple circuit components are included.

4. The electronic component board according to claim 1 , wherein
the signal lines include column lines or row lines, the column lines and the row lines are arranged in a matrix,
pixel electrodes are disposed corresponding to intersections of the column lines and the row lines in the signal line area, and
the signal line area displays an image.

5. A display panel comprising the electronic component board according to claim 1 .

6. An electronic component board comprising:
a signal line area where signal lines extend; and
a frame area surrounding the signal line area, wherein
in the frame area, terminals through which an external signal is input to the signal lines, connection lines connecting the signal lines and the terminals, and circuits are disposed, and the circuits are disposed between the signal line area and the terminals and arranged on line paths of the connection lines and arranged along a portion of an outline of the signal line area,
the connection lines are routed such that an entire outline thereof is formed in a fan shape so as to be narrowed from the signal lines toward the terminals,
the circuits include a first circuit and a second circuit,
the first circuit has an arrangement dimension in an arrangement direction of the circuits greater than that of the second circuit, and has a perpendicular dimension in a perpendicular direction perpendicular to the arrangement direction smaller than that of the second circuit,
a circuit deformation area is present between the first circuit and the second circuit, and
the first circuit and the second circuit are crossing sections of the signal lines and an auxiliary line that is used as a detour line when the signal lines are disconnected.

7. The electronic component board according to claim 6 , wherein
the first circuits and one of the terminals that are connected with one of the connection lines are disposed with a displacement in the arrangement direction that is greater than a displacement of the second circuit and another one of the terminals that are connected with another one of the connection lines, and
the one connection line connecting the one terminal and the first circuit is inclined at an angle θ 1 with respect to the arrangement direction and the other connection line connecting the other terminal and the second circuit is inclined at an angle θ 2 with respect to the arrangement direction and the angle θ 1 and the angle θ 2 satisfy |tan θ 1 |<|tan θ 2 |.

8. The electronic component board according to claim 6 , wherein
the first circuit includes a first circuit component and the second circuit includes a second circuit component, and
the first circuit component differs from the second circuit component in at least one of a shape, a direction, a number, and an arrangement direction if multiple circuit components are included.

9. The electronic component board according to claim 6 , wherein the first circuit and the second circuit are test circuits that supply a test signal to the signal lines.

10. The electronic component board according to claim 6 , wherein the first circuit and the second circuit are protection circuits.

11. The electronic component board according to claim 6 , wherein
the signal lines include column lines or row lines, the column lines and the row lines are arranged in a matrix,
pixel electrodes are disposed corresponding to intersections of the column lines and the row lines in the signal line area, and
the signal line area displays an image.

12. A display panel comprising the electronic component board according to claim 6 .

13. The electronic component board according to claim 6 , wherein the first circuit and the second circuit are connected via a circuit connection line and the circuit connection line is curved in the circuit deformation area.

Assignees

• Sharp Kk

Inventors

• Fujikawa Yohsuke

Classifications

• G02F1/1345

  Conductors connecting electrodes to cell terminals · CPC title

• G09G3/3688 Primary

  suitable for active matrices only · CPC title

• G02F1/136286

  Wiring, e.g. gate line, drain line · CPC title

• G02F1/133308

  Support structures for LCD panels, e.g. frames or bezels · CPC title

• G09G3/006

  Electronic inspection or testing of displays and display drivers, e.g. of LED or LCD displays (testing individual LED's G01R31/2635; testing lamps G01R31/44; testing of optical features of LCD displays G02F1/1309) · CPC title