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EP-3812832-B1 - ELECTRONIC DEVICE

EP3812832B1EP 3812832 B1EP3812832 B1EP 3812832B1EP-3812832-B1

Inventors

  • YANG, Shu-han
  • HUANG, Hui-min
  • YEH, CHIA-MIN

Dates

Publication Date
20260513
Application Date
20201019

Claims (9)

  1. A liquid crystal display device (10, 10A), having a peripheral region (12), the liquid crystal display device (10, 10A) comprising: a first substrate (100); a second substrate (200), disposed opposite to the first substrate (100); a first support member (PS1), disposed in the peripheral region (12), and located between the first substrate (100) and the second substrate (200); a planarization layer (130), disposed on the first substrate (100), and having a first portion (131, 132) and a plurality of openings (133, 133A, 134), the first portion (131) being disposed between the openings (133), and the first support member (PS1) and the first portion (131) being overlapped in a normal direction (N) of the first substrate (100); an alignment layer (150, 151, 152, 153, 154), disposed on the planarization layer (130),wherein the alignment layer (150, 151, 152) on the first portion (131, 132) has a first thickness (H1), the alignment layer (150, 153, 154) in the openings (133, 134) has a second thickness (H2), and the first thickness (H1) is greater than or equal to zero and less than the second thickness (H2); a plurality of active devices (T) disposed on the first substrate (100), wherein each of the active devices (T) comprises a gate (G), a semiconductor layer (CH), a source (S) and a drain (D); and a first conductive layer (M1) and a second conductive layer (M2) disposed on the first substrate (100), wherein the first support member (PS1) overlaps the first conductive layer (M1) in the normal direction (N) of the first substrate (100), the gates (G) of the active devices (T) belong to the first conductive layer (M1), and the sources (S) and the drains (D) of the active devices (T) belong to the second conductive layer (M2), wherein the display device (10, 10A) is characterized by further comprising: a light-shielding layer (BM) disposed between the second substrate (200) and the first support member (PS1); an overcoat layer (220) disposed on the light-shielding layer (BM), the first support member (PS1) being disposed on the overcoat layer (220); and another alignment layer (250) disposed on the overcoat layer (220), the another alignment layer (250) being arranged to surround the first support member (PS1).
  2. The liquid crystal display device (10, 10A) as claimed in claim 1, wherein the openings (133, 133A, 134) has an arc-shaped edge in the normal direction (N) of the first substrate (100).
  3. The liquid crystal display device (10, 10A) as claimed in claim 1, wherein the first thickness (H1) is greater than or equal to 0 Å and less than or equal to 500 Å.
  4. The liquid crystal display device (10, 10A) as claimed in claim 1, further comprising an insulating layer (140) disposed on the planarization layer (130), wherein the insulating layer (140) is disposed between the first support member (PS1) and the planarization layer (130), a ratio of a thickness of the planarization layer (130) and a thickness of the insulating layer (140) is greater than or equal to 1.5 and less than or equal to 25, and the insulating layer (140) is filled into the openings (133, 133A, 134) or overlaps the first portion (131, 132).
  5. The liquid crystal display device (10, 10A) as claimed in claim 1, further comprising a package element (160) disposed in the peripheral region (12), wherein the package element (160) surrounds the first support member (PS1).
  6. The liquid crystal display device (10, 10A) as claimed in claim 5, wherein the package element (160) is in direct contact with the alignment layer (150, 151, 152, 153, 154).
  7. The liquid crystal display device (10, 10A) as claimed in claim 5, wherein the package element (160) and the planarization layer (130) are overlapped in the normal direction (N) of the first substrate (100).
  8. The liquid crystal display device (10A) as claimed in claim 1, the electronic device (10A) having a working region (14) disposed adjacent to the peripheral region (12), the electronic device (10A), characterized by further comprising: a second support member (PS2), disposed in the working region (14), and located between the first substrate (100) and the second substrate (200), wherein a height (H3) of the first support member (PS1) is the same as a height (H4) of the second support member (PS2).
  9. The liquid crystal display device (10, 10A) as claimed in claim 1, wherein the another alignment layer (250) is not overlapped with the first support member (PS1) in the normal direction (N) of the first substrate (100).

Description

BACKGROUND Technical Field The disclosure relates to an electronic device, and particularly relates to an electronic device with openings disposed in a peripheral region. Description of Related Art Electronic products have become indispensable necessities in modern society. Along with rapid development of the electronic products, consumers have high expectations for qualities, functions or prices of the products. Therefore, the electronic products need to be improved, such as improving reliability of electronic devices, but there are still some problems to be solved. SUMMARY The disclosure is directed to an electronic device having better reliability or display quality. According to an embodiment of the disclosure, the electronic device has a peripheral region, and includes a first substrate, a second substrate, a first support member, a planarization layer, and an alignment layer. The second substrate is opposite to the first substrate. The first support member is disposed in the peripheral region and located between the first substrate and the second substrate. The planarization layer is disposed on the first substrate and has a first portion and an opening. The first portion is disposed between the opening, and the first support member and the first portion are overlapped in a normal direction of the first substrate. The alignment layer is disposed on the planarization layer. The alignment layer on the first portion has a first thickness. The alignment layer in the opening has a second thickness. The first thickness is greater than or equal to zero and less than the second thickness. Based on the above description, based on the planarization layer having the openings and configuration of the first portions between the openings, structural reliability, reliability, performance or display quality of the electronic device may be improved. US 2016/131929 A1 discloses a display panel including a first substrate having a display area and a non-display area. A sealant is disposed on the first substrate and on the non-display area. A planarization layer is disposed on the first substrate. The planarization layer has a first trench formed therein on the non-display area. The first trench has a bottom and a side adjacent to the bottom. The bottom has a roughness that is greater than the roughness of the side. US 2009/289260 A1 discloses a liquid crystal display device which can reduce or eliminate a display defect. The liquid crystal display device includes a first alignment film formed on one of the pair of substrates; a second alignment film formed on another of the pair of substrates; first projecting portions which are provided to the first alignment film and project into the liquid crystal layer by first constitutional members which constitute a layer below the first alignment film; and second projecting portions which are provided to the second alignment film, face the first projecting portions, and project into the liquid crystal layer by second constitutional members which constitute a layer below the second alignment film. WO 2019/198376 A1 discloses a liquid crystal display comprising a first substrate and a second substrate, each having a display region and a peripheral region around the display region; a sealing material which adheres the first substrate and the second substrate in the peripheral regions thereof; a first alignment film provided to the first substrate; a second alignment film provided to the second substrate; a liquid crystal layer between the first alignment film and the second alignment film; and a plurality of protrusions which protrude from the second substrate towards the first substrate. Further known display devices are provided in EP 3018525 A1 and US 2016/161778 A1. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure. FIG. 1 is a schematic top view of an electronic device according to an embodiment of the disclosure.FIG. 2 is a schematic cross-sectional view of the electronic device of FIG. 1 viewing along a section line A-A' and a section line B-B'.FIG. 3 is a schematic top view of an electronic device according to another embodiment of the disclosure.FIG. 4 is a schematic cross-sectional view of the electronic device of FIG. 3 viewing along a section line A-A' and a section line C-C'. DESCRIPTION OF THE EMBODIMENTS The present invention is provided by the appended claims. The following disclosure serves a better understanding of the present invention. Accordingly, the disclosure may be understood with reference to the following detailed description and the accompanying drawings. It should be noted that, for ease of understanding by readers and concise drawings, a plurality of accompanying drawings