TWM602234U - Electronic device - Google Patents

Abstract

An electronic device including a fingerprint sensing module, a display panel, a connection layer, and a plurality of supporting elements is provided. The fingerprint sensing module receives a sensing light beam. The fingerprint sensing module includes a collimating layer. The display panel is disposed on the fingerprint sensing module, and provides an illumination light beam to a finger to reflect the sensing light beam. The connection layer is connected between the fingerprint sensing module and the display panel. The connection layer is ring-shaped. The plurality of supporting elements are disposed on the fingerprint sensing module. The support element is non-transparent. The collimating layer includes a plurality of through holes, and the plurality of supporting elements do not overlap the plurality of through holes in the vertical direction.

Description

Electronic device

The present invention relates to an electronic device, and especially to an electronic device with fingerprint recognition function.

In current devices, optical adhesives (such as solid transparent optical adhesives (Optically Clear Adhesive, OCA) or ultraviolet hardening resins (Optically Clear Resin, OCR)) are often used to combine the light-emitting display and the under-screen optics in a fully bonded manner. Fingerprint recognition module. However, the yield rate of the device adopting the full bonding method is low, which will cause consumption and scrapping of the light-emitting display screen in the bonding process, and will inevitably cause an increase in cost. Therefore, controlling the bonding yield is more important than the material cost.

In addition, under strong light or direct sunlight, light reflected between the light-emitting display and the under-screen optical fingerprint recognition module will affect the image quality of the fingerprint. In order to avoid the consumption and scrapping of the light-emitting display during the lamination process, an improved solution for the bonding of a large-area full-screen fingerprint recognition module and a light-emitting display is improved, and it can also solve the problem of lighting under strong light or direct sunlight. The problem of reflected light will occur between the display screen and the under-screen optical fingerprint recognition module, which needs to be devoted to this field.

This new creation provides an electronic device that can improve the overall structural strength and increase image clarity.

The present invention provides an electronic device, which includes a fingerprint sensing module, a display panel, a connection layer and a plurality of supporting elements. The fingerprint sensing module receives the sensing beam. The fingerprint sensing module includes a collimation layer. The display panel is configured in the fingerprint sensing module, and provides an illumination beam to the finger to reflect the sensing beam. The connection layer is connected between the fingerprint sensing module and the display panel. The connecting layer is ring-shaped. The multiple supporting elements are arranged in the fingerprint sensing module. The supporting element is opaque. The collimating layer includes a plurality of light-transmitting holes, and the plurality of supporting elements do not overlap the plurality of light-transmitting holes in the vertical direction.

Based on the above, in the electronic device created by the present invention, the display panel and the fingerprint sensing module are connected in a frame-attached manner through the connecting layer, and the display panel and the fingerprint sensing module are configured with a plurality of supporting elements to support The display panel is separated from the fingerprint sensor module. In this way, it is possible to prevent the display panel from touching or hitting the fingerprint sensing module due to the finger pressing, thereby causing damage to the display panel, thereby increasing the structural strength of the electronic device.

In order to make the above-mentioned features and advantages of the new creation more obvious and understandable, the following embodiments are specially cited, and the accompanying drawings are described in detail as follows.

FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the new creation. Please refer to Figure 1. The present embodiment provides an electronic device 100 including a fingerprint sensing module 110, a display panel 120, a connection layer 130, and a plurality of supporting elements 140. The electronic device 100 has a fingerprint recognition function, which is suitable for allowing a user to perform fingerprint sensing by pressing on the display panel 120. Specifically, the display panel 120 transmits the illumination light beam L1 to the user's finger 10 to reflect and generate the sensing light beam L2. The electronic device 100 receives the sensing light beam L2 for fingerprint sensing. For example, the electronic device 100 is, for example, a smart phone, a tablet computer, a notebook computer or a touch-sensitive display device, etc. The invention of the present invention is not limited thereto.

The fingerprint sensing module 110 receives the sensing beam L2. In detail, the fingerprint sensing module 110 includes a collimation layer 112. The collimation layer 112 includes a plurality of light-transmitting holes H for collimating the light beam passing through the collimation layer 112. Specifically, the fingerprint sensing module 110 further includes a sensing layer 114, a filter layer 116, and an anti-reflection layer 118. The collimation layer 112 is disposed between the sensing layer 114 and the filter layer 116, and the filter layer 116 is disposed Between the sensing layer 114 and the anti-reflection layer 118. The sensing layer 114 is, for example, an image sensor chip such as a complementary metal oxide semiconductor (CMOS) or a charge coupled device (CCD). The filter layer 116 is, for example, an infrared cut filter for use. However, in other embodiments, the filter layer 116 can also be a filter for filtering other visible light wavebands or invisible light wavebands. The anti-reflective layer 118 is, for example, an anti-reflective coating to reduce reflection, thereby improving the photosensitive effect of the fingerprint sensor module 110. In addition, when the ambient light beam LE such as strong light or sunlight is directly irradiated, the reflected light generated between the display panel 120 and the fingerprint sensor module 110 can be prevented from affecting the fingerprint image. Therefore, the sensing quality of the fingerprint sensing module 110 can be improved.

The display panel 120 is suitable for providing the illumination light beam L1 to the user's finger 10 to reflect the sensing light beam L2. The display panel 120 is, for example, an organic light-emitting diode (OLED) display panel. However, in other embodiments, the display panel 120 can also be a liquid crystal display panel or other appropriate display panels, and the invention is not limited to this.

The connection layer 130 is connected between the fingerprint sensing module 110 and the display panel 120, wherein the connection layer 130 is ring-shaped. In other words, there is a light opening in the sensing area corresponding to the fingerprint sensing module 110 to allow the sensing light beam L2 to pass. In this embodiment, the connection layer 130 is made of a non-light-transmitting material, such as a UV curable glue. As a result, during the assembly process, the use of UV curable glue for bonding can increase the chance of reassembly by heating. Therefore, it can replace the full bonding process of optical glue, improve the assembly fault tolerance rate, and further improve the yield rate of manufacturing the electronic device 100. In addition, the use of UV-curable adhesives for close bonding can prevent the interior from being invaded by dust or moisture, so it can improve image clarity. However, in other embodiments, the connecting layer 130 can also be double-sided tape, and the invention is not limited to this.

A plurality of supporting elements 140 are arranged in the fingerprint sensing module 110, between the fingerprint sensing module 110 and the display panel 120, the filter layer 116 is located between the collimating layer 112 and the supporting element 140, and the anti-reflection layer 118 is arranged Between the filter layer 116 and the supporting element 140. The supporting element 140 is a non-transmissive spacer structure, for example, made of a polymer material. For example, the supporting element 140 can be made of photolithography and etching (Photolithography and Etching Process, PEP), roll to roll (Roll to Roll), precision embossing (Embossing), laminating (Laminate), printing (Printing) or the above Any combination of manufacturing processes is formed on the fingerprint sensor module 110. These supporting elements 140 do not overlap the light-transmitting holes H of the collimating layer 112 in the vertical direction D1. In other words, there is air A between the supporting elements 140, and when the sensing light beam L2 is transmitted from the finger 10 to the fingerprint sensing module 110, it will not be blocked by the supporting elements 140.

In addition, in this embodiment, the supporting element 140 abuts the display panel 120 in a butting manner. In other words, the supporting element 140 is connected to the fingerprint sensing module 110 only by the bottom 144, the display panel 120 is connected to the fingerprint sensing module 110 through the connection layer 130, and the supporting element 140 is not directly connected to the display panel 120. Therefore, during fingerprint sensing, the finger 10 can have elastic space when pressing the display panel 120, thereby increasing the structural strength of the electronic device 100. In addition, it can also reduce the difficulty of dismantling during maintenance.

For a single supporting element 140, the supporting element 140 has a flat top 142, and the area of the top 142 of the supporting element 140 is smaller than the area of the bottom 144. For example, the supporting element 140 is a flat-topped cone-shaped geometric cylinder. Therefore, the ambient light or stray light transmitted from the side can be effectively blocked, thereby improving the clarity of the image. In this way, it is possible to prevent the display panel 120 from touching or hitting the fingerprint sensing module 110 due to the pressing of the finger 10, thereby causing damage to the display panel 120, thereby increasing the structural strength of the electronic device 100. In different embodiments, the appearance of the supporting element 140 can be any geometric shape, and the area of the top 142 of the supporting element 140 can also be larger than the area of the bottom 144, and the sensing beam L2 can be directly transmitted to the fingerprint sensing mold without being blocked. Group 110.

To sum up, in the electronic device created by the present invention, the display panel and the fingerprint sensing module are connected in a frame-attached manner through the connecting layer, and the display panel and the fingerprint sensing module are equipped with a plurality of supporting elements. To support the display panel to be spaced from the fingerprint sensing module. In this way, it is possible to prevent the display panel from touching or hitting the fingerprint sensing module due to the finger pressing, thereby causing damage to the display panel, thereby increasing the structural strength of the electronic device.

Although the creation of this new type has been disclosed in the above embodiments, it is not intended to limit the creation of this new type. Anyone with ordinary knowledge in the technical field can make some changes and changes without departing from the spirit and scope of the new creation. Retouching, therefore, the scope of protection of the creation of the new model shall be subject to the scope of the attached patent application.

10: fingers 100: electronic device 110: Fingerprint sensor module 112: collimation layer 114: sensing layer 116: filter layer 118: Anti-reflective layer 120: display panel 130: connection layer 140: support element 142: top 144: bottom A: Air D1: vertical direction H: light hole L1: Illumination beam L2: Sensing beam LE: Ambient beam

FIG. 1 is a schematic diagram of an electronic device according to an embodiment of the new creation.

10: fingers

100: electronic device

110: Fingerprint sensor module

112: collimation layer

114: sensing layer

116: filter layer

118: Anti-reflective layer

120: display panel

130: connection layer

140: support element

142: top

144: bottom

A: Air

D1: vertical direction

H: light hole

L1: Illumination beam

L2: Sensing beam

LE: Ambient beam

Claims (10)

An electronic device including: A fingerprint sensing module to receive a sensing beam, the fingerprint sensing module including a collimating layer; The display panel is configured on the fingerprint sensing module and provides an illumination beam to the finger to reflect the sensing beam; A connection layer connected between the fingerprint sensing module and the display panel, the connection layer is ring-shaped; and A plurality of supporting elements are arranged in the fingerprint sensing module, and the supporting elements are non-transparent, Wherein, the collimation layer includes a plurality of light-transmitting holes, and the plurality of supporting elements do not overlap the plurality of light-transmitting holes in a vertical direction. The electronic device according to claim 1, wherein the plurality of supporting elements abut the display panel. The electronic device according to claim 1, wherein there is air between the adjacent plurality of supporting elements. The electronic device according to claim 1, wherein the material of the plurality of supporting elements is a polymer material. The electronic device according to claim 1, wherein the plurality of supporting elements each have a flat top. The electronic device according to claim 1, wherein the top area and the bottom area of the plurality of supporting elements are different. The electronic device according to claim 1, wherein the fingerprint sensing module further includes a sensing layer and a filter layer, the collimation layer is located between the sensing layer and the filter layer, and the The filter layer is located between the collimating layer and the plurality of supporting elements. The electronic device according to claim 7, wherein the fingerprint sensing module further includes an anti-reflection layer disposed between the filter layer and the plurality of supporting elements. The electronic device according to claim 1, wherein the connection layer is opaque. The electronic device according to claim 1, wherein the connecting layer is a UV curable adhesive.

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