Display device

• US 10,529,745 B2
• Filed: 03/01/2018
• Issued: 01/07/2020
• Est. Priority Date: 07/05/2016
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: Lee, Kuan-Feng, Wu, Yuan-Lin
• Primary Examiner(s): Edun, Muhammad N
• Application Number:
  US15/909,097
• Publication Number:
  US 20180197885A1
• Time in Patent Office: 677 Days
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G09G 2310/0297 Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
• CPC Class Codes: G09G 3/3266 Details of drivers for scan electrodes
• CPC Class Codes: H01L 2223/54426 for alignment
• CPC Class Codes: H01L 23/544 Marks applied to semiconductor devices or parts, e.g. registration marks, alignment structures, wafer maps test patterns for characterising or monitoring manufacturing processes H01L22/00
• CPC Class Codes: H01L 27/1225 with semiconductor materials not belonging to the group IV of the periodic table, e.g. InGaZnO
• CPC Class Codes: H01L 27/124 with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits wiring structures per se H01L23/52
• CPC Class Codes: H01L 27/1251 comprising TFTs having a different architecture, e.g. top- and bottom gate TFTs

Abstract

A display device is provided. The display device includes a substrate having a first surface and a second surface opposite to the first surface. The display device also includes a first conductive layer disposed on the first surface and a second conductive layer disposed on the second surface. The display device further includes a printed circuit board assembly disposed on the second surface and electrically connected to the second conductive layer, a processing unit disposed on and electrically connected to the printed circuit board assembly and a first connective portion at least partially disposed in the substrate and penetrating from the first surface to the second surface. The first conductive layer is electrically connected to the second conductive layer through the first connective portion.

Claims

1. A display device, comprising:

a substrate having a first surface and a second surface opposite to the first surface;

a first conductive layer disposed on the first surface;

a second conductive layer disposed on the second surface;

a printed circuit board assembly disposed on the second surface and electrically connected to the second conductive layer;

a processing unit disposed on and electrically connected to the printed circuit board assembly; and

a first connective portion at least partially disposed in the substrate, and penetrating from the first surface to the second surface,

wherein the first conductive layer is electrically connected to the second conductive layer through the first connective portion.

2. The display device as claimed in claim 1, further comprising:

a demultiplexer disposed on the first surface and electrically connected to the first conductive layer.

3. The display device as claimed in claim 1, further comprising:

a gate driver circuit disposed on the first surface and electrically connected to the first conductive layer.

4. The display device as claimed in claim 3, wherein the gate driver circuit further comprises:

a display signal line disposed on the first surface,

wherein the gate driver circuit is electrically connected to the first conductive layer through the display signal line.

5. The display device as claimed in claim 1, wherein the printed circuit board assembly is a flexible printed circuit board assembly.

6. The display device as claimed in claim 5, wherein the printed circuit board assembly and the processing unit form a chip-on-film structure.

7. The display device as claimed in claim 1, wherein the processing unit does not overlap the first connective portion along a direction perpendicular to the first surface.

8. The display device as claimed in claim 1, further comprising:

a first insulation layer disposed on the first conductive layer; and

a second connective portion at least partially disposed in the first insulation layer, and penetrating through the first insulation layer,

wherein the processing unit overlaps the second connective portion along a direction perpendicular to the first surface.

9. The display device as claimed in claim 1, wherein the substrate has a bent portion and a main portion, wherein the first connective portion is disposed in the main portion of the substrate.

10. The display device as claimed in claim 9, further comprising:

a gate driver circuit disposed on the first surface of the bent portion and electrically connected to the first conductive layer.

11. The display device as claimed in claim 10, wherein the supporting member has a first alignment mark.

12. The display device as claimed in claim 11, wherein the bent portion of the substrate has a second alignment mark, and the second alignment mark is corresponding to the first alignment mark.

13. The display device as claimed in claim 9, further comprising a supporting member disposed between the main portion and the bent portion along a direction perpendicular to the first surface of the main portion.