Display device

• US 10,216,052 B2
• Filed: 11/27/2017
• Issued: 02/26/2019
• Est. Priority Date: 06/25/2015
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Shin, Donghee, Kim, Kyungho
• Primary Examiner(s): Gumedzoe, Peniel M
• Application Number:
  US15/823,301
• Publication Number:
  US 20180081226A1
• Time in Patent Office: 456 Days
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels
• CPC Class Codes: G02F 1/13458 Terminal pads
• CPC Class Codes: G02F 1/136286 Wiring, e.g. gate line, drain line
• CPC Class Codes: G02F 1/1368 in which the switching element is a three-electrode device G02F1/136277 takes precedence
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 2320/0223 Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
• CPC Class Codes: G09G 3/20 for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
• CPC Class Codes: H01L 25/0652 the devices being arranged next and on each other, i.e. mixed assemblies
• 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

Abstract

A display device includes a substrate including a plurality of pixels disposed in a display area of the substrate. A non-display area of the substrate is disposed adjacent to the display area. The display device further includes a plurality of gate lines and a plurality of data lines arranged in a matrix form in the display area on the substrate, at least one driver integrated circuit (IC) disposed in the non-display area on the substrate, and a plurality of data fan-out wirings disposed on the substrate and connecting the data lines and the at least one driver IC. Lengths of the data fan-out wirings vary, and the data lines overlap the gate lines more as the lengths of the corresponding data fan-out wirings decrease.

Claims

1. A display device, comprising:

a substrate comprising a display area and a non-display area adjacent to the display area, a plurality of pixels being disposed on the display area;

a plurality of first lines disposed on the display area;

a plurality of second lines disposed on the display area, the plurality of second lines crossing the plurality of the first lines; and

a plurality of fan-out lines disposed on the substrate, the plurality of fan-out lines connecting the second lines and a driver;

wherein the second lines overlap the first lines more at crossing areas where the first and second lines cross as the lengths of the corresponding fan-out lines decrease,

wherein the second lines have the same widths at non-crossing areas where the first and second lines do not cross.

2. The display device of claim 1, wherein a capacitance between the second lines and the first lines increases as the length of the corresponding fan-out lines decreases.

3. The display device of claim 1, wherein the lengths of the fan-out lines are the same as a shortest distance between the driver and the corresponding second lines.

4. The display device of claim 1, wherein the fan-out lines comprise:

a one fan-out line connected to a one second line of the plurality of second lines, wherein the length of the one fan-out line is a greatest length among the lengths of the fan-out lines; and

an another fan-out line connected to an another second line of the plurality of second lines, wherein the length of the another fan-out line is a smallest length among the lengths of the fan-out lines, and the another fan-out line is disposed near a center portion of the driver.

5. The display device of claim 4, wherein the lengths of the plurality of fan-out lines decrease from the one fan-out line to the another fan-out line.

6. The display device of claim 4, wherein a resistance of the plurality of fan-out lines decreases from the one fan-out line to the another fan-out line.

7. The display device of claim 4, wherein the second lines overlap the first lines more from the one second line to the another second line.

8. The display device of claim 4, wherein a capacitance between the second lines and the first lines increases from the one second line to the another second line.

9. The display device of claim 4, wherein the one fan-out line is connected to an end portion of the driver.

10. The display device of claim 4, wherein the another fan-out line is connected to the center portion of the driver.

11. The display device of claim 1, further comprising:

an insulating layer disposed between the first lines and the second lines, wherein the insulating layer insulates the first lines from the second lines.

12. The display device of claim 1, wherein the driver includes a plurality of driver ICs, and the plurality of driver ICs is arranged at a consistent interval.

13. The display device of claim 1, wherein the widths of the portions of at least one of the second lines at the crossing area is greater than a width of a majority portion of the at least one of the second lines at the non-crossing area.

14. A display device, comprising:

a substrate comprising a display area and a non-display area adjacent to the display area, a plurality of pixels being disposed on the display area;

a plurality of first lines and second lines disposed on the display area;

a plurality of fan-out lines disposed on the substrate, the plurality of fan-out lines connecting the second lines and a driver;

wherein the second lines comprises overlap portion overlapping with the first lines and non-overlapping portions not overlapping the first lines,

wherein the second lines have more areas as the lengths of the corresponding fan-out lines decrease,

wherein the non-overlapping portions of the second lines have the same widths.