Display apparatus and display panel for the same

• US 10,642,109 B2
• Filed: 10/26/2017
• Issued: 05/05/2020
• Est. Priority Date: 10/27/2016
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Ko, Dae Sung, Kim, Dong-Woon, Han, Seung San
• Primary Examiner(s): Chang, Charles S
• Application Number:
  US15/794,750
• Publication Number:
  US 20180120611A1
• Time in Patent Office: 922 Days
• Field of Search: 349 58, 349149-152
• CPC Class Codes: G02F 1/133302 Rigid substrates, e.g. inorganic substrates
• CPC Class Codes: G02F 1/133308 Support structures for LCD panels, e.g. frames or bezels
• CPC Class Codes: G02F 1/13332 Front frames
• CPC Class Codes: G02F 1/133325 Assembling processes
• CPC Class Codes: G02F 1/133528 Polarisers
• CPC Class Codes: G02F 1/1345 Conductors connecting electrodes to cell terminals
• CPC Class Codes: G02F 1/13452 Conductors connecting driver circuitry and terminals of panels
• CPC Class Codes: G02F 2202/023 curable

Abstract

A display panel and display apparatus which includes the display panel are provided. The display apparatus includes a display panel configured to display a screen, the display panel including: a first glass substrate; a second glass substrate disposed behind the first glass substrate, wherein an end portion of the second glass substrate extends past an end of the first glass substrate such that the end portion of the second glass substrate is not overlapped by the first glass substrate; and a cover that covers a front surface of the end portion of the second glass substrate, wherein a front surface of the cover is coplanar with a front surface of the display panel.

Claims

1. A display apparatus comprising:

a display panel configured to display a screen, the display panel comprising;

a first glass substrate;

a second glass substrate disposed behind the first glass substrate, wherein an end portion of the second glass substrate extends past an end of the first glass substrate such that the end portion of the second glass substrate is not overlapped by the first glass substrate;

a cover that covers a front surface of the end portion of the second glass substrate, wherein a front surface of the cover is coplanar with a front surface of the display panel;

a chip on film (COF) having an end connected to the front surface of the end portion of the second glass substrate; and

an adhesive applied on an end of the second glass substrate,

wherein the COF is bent with respect to the end of the second glass substrate, and

wherein the cover contacts and covers a bent portion of the COF.

2. The display apparatus according to claim 1, wherein the display panel further comprises:

a first polarizing film disposed on a front surface of the first glass substrate, a front surface of the first polarizing film forming the front surface of the display panel; and

a second polarizing film disposed on a rear surface of the second glass substrate, and

the front surface of the cover is coplanar with the front surface of the first polarizing film.

3. The display apparatus according to claim 2, wherein an end portion of the first glass substrate extends past an end of the first polarizing film such that the end portion of the first glass substrate is not overlapped by the first polarizing film, and

the cover covers a front surface of the end portion of the first glass substrate.

4. The display apparatus according to claim 3, wherein the cover is formed of a photocurable resin.

5. The display apparatus according to claim 1, wherein the COF is adhered to the end of the second glass substrate by an adhesive material, and

the cover supports the bent portion and an adhered portion of the COF.

6. The display apparatus according to claim 1, wherein the end portion of the second glass substrate is a lower end portion of the second glass substrate and the end of the first glass substrate is a lower end of the first glass substrate, and

the cover covers the front surface of the lower end portion of the second glass substrate to form a lower end of the display panel.

7. The display apparatus according to claim 1, wherein the end portion of the second glass substrate is an upper end portion of the second glass substrate and the end of the first glass substrate is an upper end of the first glass substrate, and

the cover covers the front surface of the upper end of the second glass substrate to form an upper end of the display panel.

8. The display apparatus according to claim 1, wherein a lower end portion of the second glass substrate extends past a lower end of the first glass substrate and an upper end portion of the second glass substrate extends past an upper end of the first glass substrate such that the upper end portion and the lower end portion of the second glass substrate are not overlapped by the first glass substrate, and

the cover comprises:

a first cover that covers a front surface of the upper end portion of the second glass substrate to form an upper end of the display apparatus; and

a second cover that covers a front surface of the lower end portion of the second glass substrate to form a lower end of the display apparatus.

9. The display apparatus according to claim 1, wherein the display panel further comprises liquid crystals disposed between the first glass substrate and the second glass substrate.

10. The display apparatus according to claim 1, further comprising a frame case comprising a bezel configured to support edges of the display panel without overlapping the front surface of the cover.

11. A display panel comprising:

a first glass substrate;

a second glass substrate disposed behind the first glass substrate, wherein an end portion of the second glass substrate extends past an end of the first glass substrate such that the end portion of the second glass substrate is not overlapped by the first glass substrate;

a first polarizing film disposed on a front surface of the first glass substrate;

a cover that covers a front surface of the end portion of the second glass substrate, wherein a front surface of the cover is coplanar with a front surface of the first polarizing film;

a chip on film (COF) having an end connected to the front surface of the end portion of the second glass substrate; and

a frame case comprising a bezel configured to support edges of the display panel without overlapping the front surface of the cover,

wherein the COF is bent, and

wherein the cover covers a bent portion of the COF and directly contacts the bent portion of the COF.

12. The display panel according to claim 11, wherein an end portion of the first glass substrate extends past an end of the first polarizing film such that the end portion of the first glass substrate is not overlapped by the first polarizing film, and

the cover covers a front surface of the end portion of the first glass substrate.

13. The display panel according to claim 11, further comprising liquid crystals disposed between the first glass substrate and the second glass substrate.

14. The display panel according to claim 13, further comprising a second polarizing film disposed on a rear surface of the second glass substrate.