Electronic device

Abstract

An electronic device includes a display panel, a frame, a plurality of rigid supports, an adhesive unit, and a transparent cover plate. The frame has a peripheral portion and a limiting portion. The peripheral portion surrounds the display panel. The limiting portion extends upward from the peripheral portion, and the limiting portion has a height greater than the display panel. The rigid supports are disposed on a plurality of corners of the frame adjacent to the display panel. The adhesive unit is disposed on the peripheral portion. The peripheral portion of the transparent cover plate is secured to the peripheral portion by the adhesive unit, is limited by the limiting portion, and a plurality of corners of the transparent cover plate are respectively positioned on the rigid supports and are supported by the rigid supports. The rigid supports can reduce the shrinkage of the adhesive unit after hardening, reduce the strain of the transparent cover plate, and reduce the Mura phenomenon of uneven light.

Description

Technical Field

[0001] This invention relates to the field of electronics, and more particularly to an electronic device. Background Technology

[0002] In current electronic devices, such as monitors, laptops, or tablets, adhesive is usually applied to the frame around the display element, and a cover is placed on it, such as a touchpad, a specific optical sheet, or simply a protective cover.

[0003] However, as the moisture in the adhesive evaporates and the adhesive dries, there is a significant volume shrinkage, which in turn causes strain on the cover plate attached to it. This strain can cause significant problems for subsequent light emission. Commonly seen problems include light leakage at corners or light streaks caused by strain, known as murras. These problems have a serious impact on wide-viewing-angle display technology.

[0004] For light leakage and common Mura testing techniques, the human eye is used at a distance of 60 to 65 cm to inspect for light leakage using filters with different transmittance. Generally, the inspection starts with a set of filters with high transmittance (approximately 10%) and then moves to a set of filters with low transmittance (approximately 2%) until the light leakage is no longer detectable by the naked eye. The JND (Joint Noise Distance) standard is then applied. The JND ranges from approximately 2.0 to 3.5. A JND of 2.0 means that light leakage or light streaks cannot be detected using a filter set with approximately 10% transmittance. A JND of 3.5 means that light leakage or light streaks cannot be detected even with a filter set with approximately 2% transmittance. A high JND value indicates that a filter set with lower transmittance is required to detect it, implying severe light leakage. For the average consumer, a JND of 2.6 or lower is recommended.

[0005] Currently, strain is generated by adhesive bonding, resulting in significant light leakage at the corners. When the adhesive is first applied, the test result is approximately JND 2.6-2.8 (it cannot be interpreted without a filter set with 5.5% to 6% transmittance). However, after drying and aging tests, deterioration was found, and the test result JND exceeded 3.0 (it cannot be interpreted without a filter set with 3% to 5% transmittance). Summary of the Invention

[0006] To address the problems faced by existing technologies, an electronic device is provided herein. The electronic device includes a display panel, a frame, multiple rigid support members, an adhesive unit, and a transparent cover.

[0007] The frame has a peripheral portion and a limiting portion. The peripheral portion surrounds the display panel, and the limiting portion extends upward from the peripheral portion, with a height greater than that of the display panel. Rigid support members are located at multiple corners of the frame, adjacent to the display panel. Adhesive units are located on the peripheral portion. The periphery of the transparent cover is fixed to the peripheral portion via the adhesive units and is limited by the limiting portion. Multiple corners of the transparent cover are located on the rigid support members and supported by them.

[0008] In some embodiments, each rigid support is a gasket disposed on the periphery. More specifically, in some embodiments, the gasket extends toward the display panel and abuts against the periphery of the display panel.

[0009] In some embodiments, each rigid support is integrally formed with the periphery and extends upward from the periphery.

[0010] In some embodiments, the frame further includes two first supports and two second supports, the two first supports are parallel to each other, the two second supports are parallel to each other, and the second supports are connected to the two first supports, forming a corner at the junction of the first supports and the second supports. The two first supports and the two second supports have a peripheral portion and a portion of a limiting portion. Except for the corner of the frame, the periphery of the transparent cover is directly fixed to the peripheral portion through an adhesive unit.

[0011] In some embodiments, the height of the limiting portion is higher than that of the rigid support. More specifically, in some embodiments, at the corners of the frame, the total height of the rigid support and the transparent cover is not greater than the height of the limiting portion.

[0012] In some embodiments, the adhesive unit is located at a corner of the frame between the rigid support and the limiting portion.

[0013] In some embodiments, the rigid support is made of polyethylene terephthalate (PET), acrylic (PMMA), Teflon (PTFE), or metal.

[0014] In some embodiments, the transparent cover is a touchpad.

[0015] As described in the previous embodiments, the rigid support member can reduce the shrinkage caused by the hardening of the adhesive unit and the strain on the transparent cover plate, thereby reducing the Mura phenomenon of corner light leakage and uneven light intensity.

[0016] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0017] Figure 1 This is a top view of the electronic device.

[0018] Figure 2 This is a partial cross-sectional view of a first embodiment of the electronic device.

[0019] Figure 3 This is a partial cross-sectional view of a second embodiment of the electronic device.

[0020] In the attached figures, the following labels are used:

[0021] 1: Electronic devices

[0022] 10: Display Panel

[0023] 20: Framework

[0024] 201: First stent

[0025] 203: Second stent

[0026] 21: Peripheral Section

[0027] 23: Limiting part

[0028] 25: Corner

[0029] 30: Rigid support components

[0030] 40: Adhesive unit

[0031] 50: Transparent cover plate Detailed Implementation

[0032] The structural and working principles of the present invention will be described in detail below with reference to the accompanying drawings:

[0033] In the accompanying drawings, the widths of some elements, areas, etc., have been enlarged for clarity. Throughout the specification, the same reference numerals denote the same elements. It should be understood that when an element is referred to as being "on" or "connected" to another element, it may be directly on or connected to the other element, or intermediate elements may also be present. Conversely, when an element is referred to as being "directly on" or "directly connected" to another element, no intermediate elements are present.

[0034] Additionally, relative terms such as "below" or "bottom" and "above" or "top" may be used herein to describe the relationship between one element and another, as illustrated in the figures. It should be understood that relative terms are intended to include different orientations of the device beyond those shown in the figures. For example, if a device in one figure is flipped, an element described as being "below" the other element will be oriented "above" the other element. Thus, the exemplary term "below" can include both "below" and "above" orientations, depending on the specific orientation of the figure. Similarly, if a device in one figure is flipped, an element described as being "below" or "under" the other element will be oriented "above" the other element. Thus, the exemplary term "below" or "under" can include both "above" and "below" orientations.

[0035] It should be understood that although the terms "first," "second," "third," etc., may be used herein to describe various elements, components, regions, or parts, these elements, components, regions, and / or parts should not be limited by these terms. These terms are used only to distinguish one element, component, region, or part from another element, component, region, layer, or part. Therefore, "first element," "component," "region," or "part" discussed below may be referred to as a second element, component, region, or part without departing from the teachings of this document.

[0036] Figure 1 This is a top view of the electronic device. Figure 2 This is a partial cross-sectional view of a first embodiment of the electronic device. Figure 1 and Figure 2 As shown, the electronic device 1 includes a display panel 10, a frame 20, a plurality of rigid support members 30, an adhesive unit 40, and a transparent cover plate 50.

[0037] like Figure 2 As shown, Figure 2 It is along Figure 1 A cross-section along lines AA or BB, omitting components of the electronic device 1, focuses on the relationship between the display panel 10, frame 20, multiple rigid support members 30, adhesive units 40, and transparent cover 50. The frame 20 surrounds the display panel 10 and has a peripheral portion 21 and a limiting portion 23. The peripheral portion 21 surrounds the display panel 10, and the limiting portion 23 extends upward from the peripheral portion 21, with a height greater than that of the display panel 10. Rigid support members 30 are disposed on multiple corners 25 of the frame 20, adjacent to the display panel 10. Adhesive units 40 are disposed on the peripheral portion 21. The periphery of the transparent cover 50 is fixed to the peripheral portion 21 via the adhesive units 40 and is limited by the limiting portion 23. Multiple corners of the transparent cover 50 are located on the rigid support members 30 and supported by them.

[0038] Here, the electronic device 1 can be a simple display device or a touch device, etc. Therefore, the transparent cover 50 can be a simple protective cover or a touchpad. However, the above is only an example and is not intended to limit the scope. The transparent cover 50 can also be an optical plate with specific optical properties.

[0039] More specifically, the peripheral portion 21 is a recessed, flat area of ​​the frame 20 surrounding the display panel 10. The adhesive unit 40 is applied along the peripheral portion 21, and the transparent cover plate 50 is then mounted on the peripheral portion 21 and fixed by the adhesive unit 40. The height of the limiting portion 23 is higher than the rigid support member 30. Therefore, at the corner 25 of the frame 20, the adhesive unit 40 is located between the rigid support member 30 and the limiting portion 23. The adhesive unit 40 is subjected to pressure from the weight of the transparent cover plate 50, and some adhesive units 40 may be partially located on the surface of the rigid support member 30. However, this further reduces the strain on the transparent cover plate 50 caused by the shrinkage of the adhesive unit 40 after drying. Furthermore, it reduces light leakage at the corner 25 and the Mura phenomenon (uneven light intensity).

[0040] In the first embodiment, the rigid support 30 is a gasket. The gasket is disposed on the peripheral portion 21. The gasket, i.e., the rigid support 30, can extend further toward the display panel 10 and abut against the periphery of the display panel 10. Since the main function of the rigid support 30 here is to provide rigid support for the transparent cover 50, the material used needs to provide strong rigidity. Commonly used materials can be polyethylene terephthalate (PET), acrylic (PMMA), Teflon (PTFE), or metal, etc.

[0041] In some embodiments, taking a quadrilateral frame 20 as an example, the frame 20 includes two first supports 201 and two second supports 203. The two first supports 201 are parallel to each other, the two second supports 203 are parallel to each other, and the two second supports 203 are connected to the two first supports 201, thus forming a quadrilateral frame 20. A corner 25 is formed at the junction of the first supports 201 and the second supports 203. The two first supports 201 and the two second supports 203 have a peripheral portion 21 and a portion of a limiting portion 23. The rigid support 30 can be at the endpoints of the first supports 201 and / or the second supports 203, that is, the corner 25 of the frame 20 can have one or two rigid support 30s to support the transparent cover plate 50. However, the above is only an example and is not intended to limit. For example, the display panel 10, the frame 20, and the transparent cover plate 50 can also be cut or assembled into pentagonal, hexagonal, or other shapes. However, a rigid support 30 is provided at the corner 25 to support the transparent cover plate 50.

[0042] It is worth noting that, except for the corners 25 of the frame 20, the periphery of the transparent cover 50 is directly fixed to the periphery 21 via the adhesive unit 40. There are no additional rigid support members 30 for support; this is a structural adjustment made solely to reduce light leakage at the corners 25 and the Mura phenomenon of uneven light intensity.

[0043] Additionally, in some embodiments, at corner 25 of frame 20, the total height of rigid support 30 and transparent cover 50 is not greater than the height of limiting portion 23. This is so that transparent cover 50 is flush with or slightly lower than limiting portion 23 to facilitate the application of protective film, etc. However, this is only an example and not intended to be limiting. In practice, adjustments can be made according to product specifications.

[0044] Figure 3 This is a partial cross-sectional view of a second embodiment of the electronic device. The second embodiment is a variation of the first embodiment and has no difference in appearance; therefore, the top view is omitted. The second embodiment differs from the first embodiment in that the rigid support member 30 is integrally formed with the peripheral portion 21 and extends upward from the peripheral portion 21. The rigid support member 30 is part of the frame 20. Thus, a boss structure is formed at the corner 25 of the frame 20, and the adhesive unit 40 is located between the rigid support member 30 and the limiting portion 23. Here, since it is integrally formed, the rigid support member 30 and the frame 20 must be made of the same material.

[0045] Similarly, except for the corners 25 of the frame 20, the periphery of the transparent cover 50 is directly fixed to the periphery 21 via the adhesive unit 40. There are no additional rigid support members 30 for support; this is a structural adjustment made solely to reduce light leakage at the corners 25 and the Mura phenomenon of uneven light intensity.

[0046] Based on actual assessments, using the first and second embodiments, adding a rigid support 30 to the corner 25 of the frame 20 results in a JND of 2.4 to 2.7 during bonding (unreadable only with a filter group of approximately 5% to 7% transmittance). After the adhesive unit 40 has dried and cured, the JND is between 2.3 and 2.5 (unreadable only with a filter group of 6% to 9% transmittance). This represents a significant improvement over existing technologies, with a marked reduction in light leakage and Mura phenomena (uneven light intensity) after curing.

[0047] In summary, the rigid support member 30 supports the transparent cover plate 50, which reduces the shrinkage caused by the hardening of the adhesive unit 40 and the strain on the transparent cover plate 50, thereby reducing light leakage at the corner 25 and the Mura phenomenon of uneven light intensity.

[0048] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. An electronic device, which is a display device or a touch device, characterized in that, Include: A display panel; A frame having a periphery and a limiting portion, the periphery surrounding the display panel, the limiting portion extending upward from the periphery, and the height of the limiting portion being greater than that of the display panel; Multiple rigid support members are installed at multiple corners of the frame, adjacent to the display panel; An adhesive unit is disposed on the peripheral portion, wherein at the corners of the frame, the adhesive unit is located between the rigid support and the limiting portion; and A transparent cover, serving as a protective cover or touchpad, is located on the display panel. The periphery of the transparent cover is fixed to the periphery via an adhesive unit and is limited by a limiting part. Multiple corners of the transparent cover are respectively located on and supported by rigid support members. At the corner of the frame, the total height of the rigid support and the transparent cover is not greater than the height of the limiting part; except at the corner of the frame, the periphery of the transparent cover is directly fixed to the periphery through the adhesive unit.

2. The electronic device as claimed in claim 1, characterized in that, Each of the rigid support members is a gasket, which is disposed on the periphery.

3. The electronic device as claimed in claim 2, characterized in that, The gasket extends toward the display panel and abuts against the periphery of the display panel.

4. The electronic device as claimed in claim 1, characterized in that, Each of the rigid support members is integrally formed with the peripheral portion and extends upward from the peripheral portion.

5. The electronic device as claimed in claim 1, characterized in that, The frame further includes two first supports and two second supports, the two first supports are parallel to each other, the two second supports are parallel to each other, and the two second supports are connected to the two first supports. The corners are formed at the junction of the first supports and the second supports. The two first supports and the two second supports have a peripheral portion and a portion of the limiting portion.

6. The electronic device as claimed in claim 1, characterized in that, The height of the limiting part is higher than that of the rigid support members.

7. The electronic device as claimed in claim 1, characterized in that, The transparent cover is a touch panel.

8. The electronic device as claimed in claim 1, characterized in that, The rigid support components are made of polyethylene terephthalate, acrylic, Teflon or metal.

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