CN114578983A - Display device - Google Patents

Display device Download PDF

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Publication number
CN114578983A
CN114578983A CN202110310710.4A CN202110310710A CN114578983A CN 114578983 A CN114578983 A CN 114578983A CN 202110310710 A CN202110310710 A CN 202110310710A CN 114578983 A CN114578983 A CN 114578983A
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CN
China
Prior art keywords
display
transflective
layer
display device
module
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Granted
Application number
CN202110310710.4A
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Chinese (zh)
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CN114578983B (en
Inventor
林士尧
詹明昌
林稜偕
詹柏青
詹孟嘉
郑国丰
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Unimicron Technology Corp
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Unimicron Technology Corp
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Publication of CN114578983A publication Critical patent/CN114578983A/en
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Vehicle Body Suspensions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)
  • Liquid Crystal (AREA)

Abstract

The invention provides a display device, which comprises a display and a semi-penetrating and semi-reflecting module. The transflective module is disposed at one side of the display and includes a glass substrate and a transflective structure layer. The transflective structure layer is disposed on the glass substrate and between the glass substrate and the display. The display device of the invention can reduce or avoid the generation of ghost shadow and has better display quality.

Description

Display device
Technical Field
The present invention relates to a display device, and more particularly, to a display device capable of reducing ghost.
Background
In a conventional product having a transflective touch display device, a light-tight conductive material layer (such as a chromium layer) is disposed in front of a cover glass (i.e., between a user and the cover glass). The above configuration not only affects the touch function, but also causes ghost to affect the display quality. In addition, a protective layer is required to cover the opaque conductive material layer, which not only increases the production cost, but also is easy to be contaminated and not easy to clean.
Disclosure of Invention
The present invention is directed to a display device, which can reduce or prevent the occurrence of ghost images and has a better display quality.
According to an embodiment of the present invention, a display device includes a display and a transflective module. The transflective module is disposed at one side of the display and includes a glass substrate and a transflective structure layer. The transflective structure layer is disposed on the glass substrate and between the glass substrate and the display.
In the display device according to the embodiment of the invention, the transflective module further includes a plastic frame. The rubber frame is arranged between the display and the semi-penetration semi-reflection structure layer. The glue frame, the display and the semi-penetration semi-reflection structure layer define a space.
In the display device according to the embodiment of the invention, the display includes a display body and a touch line.
In the display device according to the embodiment of the invention, the touch line is built in the display body or is externally hung on one side of the display body.
In the display device according to the embodiment of the invention, the transflective module further includes a plastic frame and a touch sensing layer. The touch sensing layer is configured on the semi-penetration semi-reflection structural layer. The rubber frame is arranged between the display and the touch sensing layer. The glue frame, the display and the touch sensing layer define a space.
In the display device according to the embodiment of the invention, the transflective module further includes a plastic frame, a touch module and an optical adhesive layer. The optical adhesive layer is configured on the semi-penetration semi-reflection structure layer. The touch module is fixed on the semi-penetration semi-reflection structure layer through the optical adhesive layer. The rubber frame is arranged between the display and the touch module. The glue frame, the display and the touch module define a space.
In the display device according to the embodiment of the invention, the touch module includes a single-layer ito electrode structure layer or a double-layer ito electrode structure layer.
In the display device according to the embodiment of the invention, the transflective structure layer includes a transflective mirror.
In the display device according to the embodiment of the invention, an orthogonal projection of the display on the glass substrate is smaller than or equal to an orthogonal projection of the transflective structure layer on the glass substrate.
In an embodiment of the display device, the display device further includes an optical adhesive layer disposed between the display and the transflective module. The display and the transflective module are bonded together by an optical glue layer.
In view of the above, in the design of the display device of the present invention, the transflective structure layer of the transflective module is located between the glass substrate and the display, i.e. located in a side of the glass substrate relatively far away from the user (i.e. behind). Therefore, compared with the prior art that the opaque conductive material layer is arranged in front of the protective glass, the distance between the light reflected by the display again through the semi-transparent semi-reflective structure layer and the light directly reflected by the display is smaller, and the ghost can be effectively reduced or avoided. Therefore, the display device of the invention has better display quality.
Drawings
FIG. 1 is a schematic cross-sectional view of a display device according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a display device according to another embodiment of the invention;
FIG. 3 is a schematic cross-sectional view of a display device according to another embodiment of the invention;
FIG. 4A is a schematic cross-sectional view of a display device according to another embodiment of the invention;
FIG. 4B is a schematic cross-sectional view of the touch module shown in FIG. 4A;
FIG. 4C is a schematic cross-sectional view illustrating another touch module according to an embodiment of the invention;
fig. 5 is a schematic cross-sectional view of a display device according to another embodiment of the invention.
Description of the reference numerals
100a, 100b, 100c, 100d, 100f a display device;
110a, 110b a display;
112, displaying the body;
114, touch control circuit;
120a, 120c, 120d, 120f, a transflective module;
122, a glass substrate;
123, a rubber frame;
124, a semi-penetrating semi-reflecting structure layer;
126 touch sensing layer;
127, an optical adhesive layer;
128. 128' a touch module;
128a substrate;
128b, 128c electrode layers;
130, an optical adhesive layer;
l1, L2 light;
s1, S3, S4 space;
u is the user.
Detailed Description
Reference will now be made in detail to exemplary embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
Fig. 1 is a schematic cross-sectional view of a display device according to an embodiment of the invention. Referring to fig. 1, in the present embodiment, a display device 100a includes a display 110a and a transflective module 120 a. The transflective module 120a is disposed at one side of the display 110a and includes a glass substrate 122 and a transflective structure layer 124. The transflective structure layer 124 is disposed on the glass substrate 122 and between the glass substrate 122 and the display 110 a.
In detail, in the present embodiment, the display 110a is, for example, a thin film transistor-liquid crystal display (TFT-LCD) display, an Organic Light Emitting Diode (OLED) display, a Micro light emitting diode (Micro LED) display, or a sub-millimeter light emitting diode (Mini LED) display, which is not limited herein. The orthographic projection of the display 110a on the glass substrate 122 is less than or equal to the orthographic projection of the transflective structure layer 124 on the glass substrate 122. In one embodiment, the transflective structure layer 124 can be, for example, a transflective mirror. In another embodiment, the transflective structure layer 124 may be a transflective layer formed by overlapping a transparent non-conductive material with a high refractive material and a low refractive material by sputtering, wherein the transflective layer has a transmittance of 30% and a reflectance of 70%; alternatively, the transmittance is 40% and the reflectance is 60%; alternatively, the transmittance is 50% and the reflectance is 50%. Here, the non-conductive material is, for example, aluminum, chromium, tin, nickel, silicon or other suitable material, and the high refractive material is, for example, silicon dioxide, magnesium fluoride (MgF)2) Sodium fluoroaluminate (Na)3AlF6) Or other suitable material, and low refractive index material such as titanium dioxide (TiO)2) Niobium pentoxide (Nb)2O5) Tantalum pentoxide (Ta)2O5) Zinc oxide (ZnO), silicon nitride (Si)3N4) Or other suitable material.
In addition, the transflective module 120a of the present embodiment further includes a plastic frame 123. The plastic frame 123 is disposed between the display 110a and the transflective structure layer 124 to fix the display 110a and the transflective module 120 a. The frame 123, the display 110a and the transflective structure layer 124 define a space S1, and air exists in the space S1. Here, the material of the frame 123 includes, but is not limited to, epoxy resin or optical adhesive.
In the present embodiment, the transflective structure layer 124 of the transflective module 120a is disposed on the inner side of the glass substrate 122, i.e. relatively far away from the user U but relatively close to the display 110 a. Compared to the prior art in which a layer of opaque conductive material (e.g., chrome layer) is disposed in front of the cover glass (i.e., between the user and the cover glass), the distance between the transflective structure layer 124 and the display 110a is shorter. When the user U looks from the transflective module 120a to the display 110a, the distance between the light L1 reflected from the display 110a and the light L2 reflected again by the transflective structure layer 124 and the light L1 directly reflected from the display 110a is relatively small, so that the occurrence of ghost shadow can be effectively reduced or avoided. In this way, the display device 100a of the present embodiment has better display quality. In addition, the transflective structure layer 124 can be made of a non-conductive material and disposed on the inner side of the glass substrate 122, so as to have better weather resistance.
It should be noted that the following embodiments follow the reference numerals and parts of the contents of the foregoing embodiments, wherein the same reference numerals are used to indicate the same or similar elements, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, and the following embodiments will not be repeated.
Fig. 2 is a schematic cross-sectional view of a display device according to another embodiment of the invention. Referring to fig. 1 and fig. 2, the display device 100b of the present embodiment is similar to the display device 100a of fig. 1, and the difference between the two is: in the present embodiment, the display 110b further has a touch function. In detail, the display 110b of the present embodiment includes a display body 112 and a touch circuit 114, wherein the touch circuit 114 is built in the display body 112, which is a built-in Touch In Cell (TIC). In another embodiment, not shown, the touch line can be externally hung on one side of the display body, i.e. an integrated Touch On Cell (TOC), which still falls within the scope of the present invention.
Fig. 3 is a schematic cross-sectional view of a display device according to another embodiment of the invention. Referring to fig. 1 and fig. 3, the display device 100c of the present embodiment is similar to the display device 100a of fig. 1, and the difference between the two devices is: in the present embodiment, the transflective module 120c further includes a touch sensing layer 126. The touch sensing layer 126 is disposed on the transflective structure layer 124, wherein the transflective structure layer 124 is disposed between the touch sensing layer 126 and the glass substrate 122. The rubber frame 123 is disposed between the display 110a and the touch sensing layer 126 to fix the display 110a and the transflective module 120 c. The plastic frame 123, the display 110a and the touch sensing layer 126 define a space S3, and air exists in the space S3.
In short, the transflective module 120c of the present embodiment further includes a touch sensing layer 126 as an input of the human-machine interface, wherein the transflective structure layer 124 made of a non-conductive material is located between the touch sensing layer 126 and the glass substrate 122, and the touch sensing of the touch sensing layer 126 is not affected. In addition, the transflective structure layer 124 is disposed on the inner side of the glass substrate 122, which can reduce or prevent the display device 100c from generating ghost images, and can also increase the weather resistance of the transflective structure layer 124.
Fig. 4A is a schematic cross-sectional view of a display device according to another embodiment of the invention. Fig. 4B is a schematic cross-sectional view of the touch module shown in fig. 4A. Fig. 4C is a schematic cross-sectional view illustrating another touch module according to an embodiment of the invention. Referring to fig. 1 and fig. 4A at the same time, the display device 100d of the present embodiment is similar to the display device 100a of fig. 1, and the difference between the two is: in the present embodiment, the transflective module further includes a touch module 128 and an optical adhesive layer 127. The optical adhesive layer 127 is disposed on the transflective structure layer 124, wherein the transflective structure layer 124 is disposed between the optical adhesive layer 127 and the glass substrate 122. The touch module 128 is fixed on the transflective structure layer 124 by an optical adhesive layer 127. As shown in fig. 4B, the touch module 128 of the present embodiment is composed of a substrate 128a and an electrode layer 128B disposed on one side of the substrate 128a, wherein the substrate 128a is, for example, a glass substrate or a plastic substrate, and the electrode layer 128B is, for example, indium tin oxide. That is, the touch module 128 is a single-layer indium tin oxide (SITO) electrode structure layer. In another embodiment, referring to fig. 4C, the touch module 128 'is composed of a substrate 128a and two electrode layers 128b and 128C disposed on two opposite sides of the substrate 128a, that is, the touch module 128' is a double-layer indium tin oxide (DITO) electrode structure layer. In another embodiment, not shown, the touch module may be arranged as an electrode layer by a double-layer metal mesh (mesh), which still falls within the protection scope of the present invention. In addition, the rubber frame 123 is disposed between the display 110a and the touch module 128 to fix the display 110a and the transflective module 120 d. The plastic frame 123, the display 110a and the touch module 128 define a space S4, and air exists in the space S4.
Fig. 5 is a schematic cross-sectional view of a display device according to another embodiment of the invention. Referring to fig. 1 and fig. 5, a display device 100f of the present embodiment is similar to the display device 100a of fig. 1, and the difference between the two devices is: the display device 100f of the present embodiment further includes an optical adhesive layer 130 disposed between the display 110a and the transflective module 120f, wherein the display 110a and the transflective module 120f are bonded together through the optical adhesive layer 130. Here, the optical adhesive layer 130 is completely attached on the surfaces of the display 110a and the transflective structure layer 124, i.e. there is no air layer between the display 110a and the transflective module 120f in this embodiment.
It should be noted that the display devices 100a, 100b, 100c, 100d, and 100f of the present embodiment also have a mirror function because the transflective modules 120a, 120c, 120d, and 120f are provided. Therefore, the display devices 100a, 100b, 100c, 100d, and 100f of the present embodiment may also be combined with a photosensitive device according to the difference of the ambient light intensity to automatically sense and adjust the brightness of the display devices 100a, 100b, 100c, 100d, and 100f, so that the user U can see the image with the best contrast, and the display devices 100a, 100b, 100c, 100d, and 100f can have the best contrast.
In summary, in the design of the display device of the present invention, the transflective structure layer of the transflective module is located between the glass substrate and the display, i.e. located in a side of the glass substrate relatively far away from the user (i.e. the rear side). Therefore, compared with the prior art that the opaque conductive material layer is arranged in front of the protective glass, the distance between the light beam reflected by the semi-transparent semi-reflective structure layer and the light beam reflected directly from the display is smaller, and the generation of ghost shadow can be effectively reduced or avoided. Therefore, the display device of the invention has better display quality.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A display device, comprising:
a display; and
the transflective module is configured at one side of the display and comprises a glass substrate and a transflective structure layer, wherein the transflective structure layer is configured on the glass substrate and is positioned between the glass substrate and the display.
2. The display device as claimed in claim 1, wherein the transflective module further comprises a plastic frame disposed between the display and the transflective structural layer, and the plastic frame, the display and the transflective structural layer define a space.
3. The display device according to claim 2, wherein the display comprises a display body and a touch control circuit.
4. The display device according to claim 3, wherein the touch line is built in the display body or externally hung on one side of the display body.
5. The display device of claim 1, wherein the transflective module further comprises a plastic frame and a touch sensing layer, the touch sensing layer is disposed on the transflective structure layer, the plastic frame is disposed between the display and the touch sensing layer, and the plastic frame, the display and the touch sensing layer define a space.
6. The display device as claimed in claim 1, wherein the transflective module further comprises a frame, a touch module and an optical adhesive layer, the optical adhesive layer is disposed on the transflective structural layer, the touch module is fixed on the transflective structural layer through the optical adhesive layer, the frame is disposed between the display and the touch module, and the frame, the display and the touch module define a space.
7. The display device according to claim 6, wherein the touch module comprises a single-layer ITO electrode structure layer or a double-layer ITO electrode structure layer.
8. The display device of claim 1, wherein the transflective structural layer comprises a transflective mirror.
9. The display device as claimed in claim 1, wherein an orthographic projection of the display on the glass substrate is smaller than or equal to an orthographic projection of the transflective structure layer on the glass substrate.
10. The display device according to claim 1, further comprising:
an optical glue layer disposed between the display and the transflective module, wherein the display and the transflective module are bonded together by the optical glue layer.
CN202110310710.4A 2020-12-01 2021-03-23 Display device Active CN114578983B (en)

Applications Claiming Priority (2)

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US202063119656P 2020-12-01 2020-12-01
US63/119,656 2020-12-01

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CN114578983B CN114578983B (en) 2024-03-12

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JP2007133294A (en) * 2005-11-14 2007-05-31 Epson Imaging Devices Corp Liquid crystal device and electronic apparatus
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US20190018271A1 (en) * 2017-07-12 2019-01-17 Shanghai Tianma Micro-electronics Co., Ltd. Touch display device

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US7088405B2 (en) * 2003-05-05 2006-08-08 3M Innovative Properties Company Structured transflectors for enhanced ambient and backlight operation of transmissive liquid crystal displays
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TWI397745B (en) * 2009-06-23 2013-06-01 Hannstar Display Corp Transflective dispalying device and methof for assembling the same
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Publication number Priority date Publication date Assignee Title
CN1432824A (en) * 2001-07-02 2003-07-30 住友化学工业株式会社 Semi-transmitting film, semi-transmitting polarizing film and polarization light source and liquid crystal device with said films
JP2007133294A (en) * 2005-11-14 2007-05-31 Epson Imaging Devices Corp Liquid crystal device and electronic apparatus
CN104932750A (en) * 2015-06-30 2015-09-23 京东方科技集团股份有限公司 Touch screen and manufacturing method thereof and touch display device
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CN107664837A (en) * 2017-10-20 2018-02-06 京东方科技集团股份有限公司 A kind of reflective display

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TW202223508A (en) 2022-06-16
CN114578983B (en) 2024-03-12
TWI783415B (en) 2022-11-11

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