DISPLAY PANEL AND METHOD OF MANUFACTURING THE SAME

• US 20140368772A1
• Filed: 02/12/2014
• Published: 12/18/2014
• Est. Priority Date: 06/18/2013
• Status: Abandoned Application

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: HWANG, Jinho, YANG, SungHoon, JO, Gugrae
• Application Number:
  US14/178,358
• Publication Number:
  US 20140368772A1
• Time in Patent Office: Days
• US Class Current: 349/106
• CPC Class Codes: G02F 1/133502 Antiglare, refractive index matching layers
• CPC Class Codes: G02F 1/1362 Active matrix addressed cells G02F1/134336, G02F1/134363 take precedence
• CPC Class Codes: H01L 29/78633 with a light shield

Abstract

A display panel includes a display substrate and a reflection prevention pattern. The display substrate includes a first substrate, a plurality of signal lines on an inner surface of the first substrate, and a plurality of pixels coupled to corresponding ones of the signal lines. The reflection prevention pattern is on an outer surface of the first substrate and overlaps the signal lines.

Claims

1. A display panel, comprising:

a first display substrate that includes a first substrate, a plurality of signal lines on an inner surface of the first substrate, and a plurality of pixels coupled to corresponding ones of the signal lines; and

a reflection prevention pattern on an outer surface of the first substrate, wherein the reflection prevention pattern overlaps the signal lines.

2. The display panel as claimed in claim 1, wherein the reflection prevention pattern entirely covers the signal lines.

3. The display panel as claimed in claim 1, wherein the signal lines comprise:

a plurality of gate lines in a first direction and arranged in a second direction crossing the first direction; and

a plurality of data lines insulated from the gate lines and crossing the gate lines, wherein each of the pixels includes;

a thin film transistor connected to a corresponding gate line of the gate lines and a corresponding data line of the data lines; and

a pixel electrode connected to the thin film transistor.

4. The display panel as claimed in claim 3, wherein the reflection prevention pattern overlaps the thin film transistor included in each of the pixels.

5. The display panel as claimed in claim 1, wherein the reflection prevention pattern includes at least one of a metal oxide material or a metal nitride material.

6. The display panel as claimed in claim 5, wherein the metal oxide material and the metal nitride material comprise one of chromium, copper, aluminum, or titanium.

7. The display panel as claimed in claim 1, wherein the reflection prevention pattern includes a photosensitive organic material.

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

a second display substrate that includes a second substrate and a color filter layer, the color filter layer on an inner surface of the second substrate and facing the first display substrate; and

a liquid crystal layer between the first and second display substrates.

9. The display panel as claimed in claim 8, wherein the color filter layer includes a black matrix overlapping the signal lines and a plurality of color filters overlapping the pixels.

10. A method of manufacturing a display panel, comprising:

forming signal lines on a first surface of a first substrate; and

forming a reflection prevention pattern on a second surface of the first substrate to overlap the signal lines.

11. The method as claimed in claim 10, wherein the reflection prevention pattern entirely overlaps the signal lines.

12. The method as claimed in claim 10, wherein forming the reflection prevention pattern includes:

forming a negative photosensitive layer on the second surface;

irradiating a light onto the negative photosensitive layer through the first surface;

removing a portion of the negative photosensitive layer overlapping the signal lines, to form an opening;

forming a reflection prevention layer on the second surface to overlap the negative photosensitive layer and the opening; and

removing the negative photosensitive layer and a portion of the reflection prevention layer, which is disposed on the negative photosensitive layer.

13. The method as claimed in claim 12, wherein the reflection prevention layer includes at least one of a metal oxide material or a metal nitride material.

14. The method as claimed in claim 13, wherein the metal oxide material and the metal nitride material comprise one of chromium, copper, aluminum, or titanium.

15. The method as claimed in claim 10, wherein forming the reflection prevention pattern includes:

forming a positive photosensitive layer on the second surface;

irradiating light onto the positive photosensitive layer through the first surface; and

removing a portion of the positive photosensitive layer not overlapping the signal lines.

16. The method as claimed in claim 10, further comprising:

forming a thin film transistor on the first surface to be coupled to a corresponding signal line and a pixel electrode coupled to the thin film transistor.

17. The method as claimed in claim 16, wherein the reflection prevention pattern overlaps the thin film transistor.

18. The method as claimed in claim 10, further comprising:

coupling a second substrate including a color filter layer to the first substrate.

19. The method as claimed in claim 18, further comprising:

injecting a liquid crystal layer between the first and second substrates.

20. A pixel, comprising:

a transparent substrate including a first area and a second area; and

a reflection prevention pattern overlapping the first area and not the second area, wherein the first area corresponds to a transistor and the second area correspond to a light emission area for forming an image, and wherein the reflection prevention pattern overlaps one or more signal lines coupled to the transistor.