JP2016009033A - Cover glass, cover glass protection member, and manufacturing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover glass 1 that is easily manufactured and offers less shape variation of a peripheral portion and superior shock resistance, and to provide a manufacturing method therefor.SOLUTION: A cover glass 1 comprises a transparent base material 10 and a ring-like frame 18 that is made of a shrinkable material and is adhesively placed on a peripheral portion of the transparent base material.

Description

  The present invention relates to a cover glass for a display device, a cover glass protective member, and a method for manufacturing the same.

  A cover glass for a display device is generally formed by cutting a large-sized glass in accordance with the size of the cover glass, thereby improving production efficiency. When cutting large-sized glass, an etching method is often employed so that the glass is not damaged during cutting.

Special table 2014-502950 gazette

  However, in the etching method, the cut surface is not flat, but has a sharp shape. For this reason, the cut surface may be protected by covering with a protective resin. In this case, a method of coating the resin with a dispenser or the like with the surface on which the resin is formed facing upward is adopted so that the resin does not sag, but since there are four side surfaces of the cover glass, the resin is applied to each surface. Prior to coating, each surface must be placed on top, resulting in poor workability.

  Moreover, since the shape of the cut surface formed by the etching method is not uniform, the shape of the resin formed on the cut surface is also ununiform. Therefore, there is a problem that it is difficult to make the resin on the cut surface into a desired shape.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a cover glass that is easy to manufacture, has no variation in the shape of the peripheral edge, and is excellent in impact resistance, and a method for manufacturing the same. There is to do.

  In order to solve the above-described problems, in one embodiment of the present invention, a cover glass including a transparent base material and an annular frame body made of a shrinkable material, which is disposed in close contact with the periphery of the transparent base material. Is provided.

  The frame may be a contraction of a contractible material.

  The frame may include the annular contraction and an adhesive attached to the inner peripheral surface of the contraction.

  The shrinkable material may contain natural rubber.

  You may provide the decorating layer laminated | stacked on the said transparent base material from the peripheral edge of the said transparent base material to the inside predetermined range.

It may be provided with a touch panel sensor integrally formed on the surface opposite to the surface on the observer side of the transparent substrate,
The surface on the viewer side of the transparent substrate may be provided with an active area capable of touch detection by the touch panel sensor and an inactive area where touch detection is not possible,
The decorative layer may be arranged to overlap the inactive area,
The frame body may be disposed in close contact so as to cover the entire side surface of the periphery of the transparent base material on which the touch panel sensor is integrally formed.

In another aspect of the present invention, it comprises an annular frame made of a shrinkable material of a shrinkable material placed in close contact with the periphery of the transparent substrate,
A cover glass protective member to which an adhesive is attached is provided on the inner peripheral surface of the frame.

In another aspect of the present invention, a liquid shrinkable material is poured into a cylindrical annular mold and cured to form a shrinkage of the cylindrical annular shrinkable material;
Applying an adhesive to the inner peripheral surface of the shrinkage,
There is provided a method for manufacturing a cover glass protection member, comprising: cutting the contracted material having the adhesive applied to the inner peripheral surface into a predetermined thickness along the circumferential direction.

  According to the present invention, a cover glass having no variation in the shape of the peripheral edge and excellent in impact resistance can be produced by a simple manufacturing process.

The top view of the electronic device 3 provided with the display apparatus 2 which mounts the cover glass 1 by this embodiment. The longitudinal cross-sectional view in the II-II line of FIG. The top view which shows the structure of the touchscreen sensor 7 formed in the back surface side of the cover glass 1. FIG. The top view of the cover glass 1 by this embodiment. FIG. 5 is a cross-sectional view taken along line IV in FIGS. 3 and 4. (A) is sectional drawing in the state which affixed the resin film 19 on both main surfaces of the large format glass 20, (b) is sectional drawing which shows the state which performed the etching process. (A)-(e) is a figure explaining the manufacturing process of the cover glass 1 by this embodiment. (A)-(e) is a figure explaining the manufacturing process of the cover glass protector 22. FIG. (A)-(d) is a figure which shows some examples of the shape of the internal peripheral surface of the cover glass protective body 22. FIG. (A)-(c) is a figure which shows some examples of the shape of the outer peripheral surface of the cover glass protective body 22. FIG.

  Embodiments of the present invention will be described below with reference to the drawings. In the drawings attached to the present specification, for the sake of illustration and ease of understanding, the scale, the vertical / horizontal dimension ratio, and the like are appropriately changed and exaggerated from those of the actual product. In addition, as used in the present specification, the shape and geometric conditions and the degree thereof are specified, for example, terms such as “parallel”, “orthogonal”, “identical”, etc. are not bound to a strict meaning. Therefore, it should be interpreted to include a range where a similar function can be expected.

  1-10 is a figure explaining one Embodiment of this invention. In the embodiment described below, a cover glass and a cover glass protective member that can be used for a display device of an electronic device such as a mobile phone or a smartphone will be described.

  FIG. 1 is a plan view of an electronic apparatus 3 including a display device 2 on which a cover glass 1 according to the present embodiment is mounted, and FIG. 2 is a longitudinal sectional view taken along line II-II in FIG. The electronic device 3 in FIG. 1 is, for example, a smartphone, and includes a display device 2 including a flat panel display module and a case (housing) 4 that covers the periphery of the display device 2. A main body 5 of the electronic device 3 is disposed below the display device 2. That is, the case 4 is disposed so as to cover the periphery of the display device 2 and the main body 5 except for the display surface side of the display device 2. The main unit 5 includes a processor, an image processing unit, a communication processing unit, a storage unit, an input interface unit, and the like, but the detailed contents of the main unit 5 are omitted.

  In this specification, the display surface side of the display device 2, that is, the side on which the user (observer) visually recognizes the display surface is referred to as the front surface, and the opposite surface is referred to as the back surface.

  The display device 2 includes a pixel display unit 6 and a cover glass 1 disposed on the front surface of the pixel display unit 6. The cover glass 1 is integrally formed with a touch panel sensor 7 on the back side thereof. Alternatively, a touch panel sensor substrate may be laminated on the back surface side of the cover glass 1, and the touch panel sensor 7 may be formed on the touch panel sensor substrate.

  The cover glass 1 forms a surface closest to the user of the display device 2. When the user touches this surface, the touch panel sensor 7 detects the touch position. The pixel display unit 6 may be of any type as long as it is an existing flat display unit such as a liquid crystal display unit, an organic EL display unit, or a plasma display unit.

  The touch panel sensor 7 is disposed on the back side of the cover glass 1, that is, the side facing the display surface of the pixel display unit 6. More specifically, an active area where the touch panel sensor 7 is disposed and an inactive area where the touch panel sensor 7 is not disposed are provided on the back side of the cover glass 1. The user touches the front side of the cover glass 1, but when the user touches the front side region that overlaps the active region, the touch position is detected by the touch panel sensor 7. On the other hand, even if an area overlapping the inactive area on the front side of the non-cover glass 1 is touched, the touch position is not detected.

  As the touch sensing method of the touch panel sensor 7, various existing methods such as a resistance film method and a capacitance method can be applied.

  FIG. 3 is a plan view showing the structure of the touch panel sensor 7 formed on the back side of the cover glass 1. The touch panel sensor 7 includes a plurality of rectangular unit mesh regions 11 arranged in a plurality of rows along the first direction X on the cover glass 1 and a plurality of rows along a second direction Y intersecting the first direction X. And a plurality of rectangular unit mesh regions 12 arranged over the rectangular shape. The plurality of unit mesh regions 11 arranged along the first direction X and the plurality of unit mesh regions 12 arranged along the second direction Y are arranged via gaps 13 and insulated from each other. Has been. The plurality of unit mesh regions 11 in each column extending along the first direction X are connected in series for each column. Similarly, the plurality of unit mesh regions 12 in each column extending along the second direction Y are connected in series for each column.

  One side of each of the unit mesh regions 11 and 12 is set to, for example, about 4 mm in accordance with the size of a human finger. If one side of the unit mesh areas 11 and 12 is about 4 mm, the human finger always touches two or more adjacent unit mesh areas 11 and 12.

  Touch detection lines 14 are connected to the unit mesh regions 11 located at one end of each row extending along the first direction X, and these touch detection lines 14 are connected to the corresponding pads 16 through the inactive regions 9. Has been. Similarly, the touch detection lines 15 are connected to the unit mesh area 12 located at one end of each column extending along the second direction Y, and these touch detection lines 15 pass through the inactive areas 9 and correspond to the corresponding pads. 16 is connected.

  When a human finger touches one of the unit mesh areas 11 and 12, a current flows through the corresponding touch detection lines 14 and 15, and the touch position can be detected. As described above, when a human finger touches the front surface of the cover glass 1, a current flows through the touch detection line 14 connected to the unit mesh region 11 of one or more columns extending in the first direction X, and the second A current flows through the touch detection line 15 connected to the unit mesh region 12 in one or more columns extending in the direction Y. Thereby, a touch position can be specified correctly.

  As described above, the plurality of touch detection lines 14 and 15 are arranged in the inactive area 9. Since the cover glass 1 is transparent by itself, the touch detection lines 14 and 15 may be observed through. Therefore, a decorative layer 17 is provided on the back surface side of the cover glass 1 in association with the position of the inactive region 9 as shown in FIG. By coloring the decoration layer 17 with a predetermined color, there is no possibility that the touch detection line can be seen through the cover glass 1.

  On the other hand, the active region 8 of the cover glass 1 substantially overlaps the display area of the pixel display unit 6 and is transparent so that the display area can be seen through as it is.

  FIG. 4 is a plan view of the cover glass 1 according to the present embodiment. The cover glass 1 in FIG. 4 includes a transparent base material 10, a decorative layer 17, and a frame body 18 made of a shrinkable material of a shrinkable material placed in close contact with the periphery of the transparent base material 10.

  The frame 18 is a contracted product obtained by applying heat to a contractible material and curing it, for example. Since the frame 18 is disposed in close contact with the entire periphery of the cover glass 1, even if an impact is applied to the edge portion of the cover glass 1, the impact can be absorbed by the contracted material, and damage to the cover glass 1 can be prevented. it can. Thus, the frame 18 is provided to protect the edge portion of the cover glass 1 that is weak in strength.

  When attaching the frame 18 to the cover glass 1, the operation of attaching the adhesive to the four sides of the cover glass 1 requires applying the adhesive to the end face of the cover glass for each side using a dispenser. The workability is bad. Further, since the width of the frame 18 is about several hundred μm, it is not easy to attach an adhesive to the inner peripheral surface of the frame 18 when the frame 18 is attached to the cover glass 1, and workability is improved. bad. Therefore, it is desirable to apply an adhesive in advance to the inner peripheral surface of the frame 18, that is, the side that contacts the peripheral edge of the cover glass 1. Accordingly, when the frame body 18 is fitted to the peripheral edge of the cover glass 1, the frame body 18 can be firmly adhered to the peripheral edge of the cover glass 1 by the adhesive on the inner peripheral surface of the frame body 18.

  The decoration layer 17 is arrange | positioned so that it may overlap with the inactive area | region 9, as mentioned above. More specifically, the decorative layer 17 is laminated on the back surface side of the transparent substrate 10 from the periphery of the transparent substrate 10 to a predetermined range inside. By making the decoration layer 17 opaque, the touch detection line is not visually recognized from the front side of the cover glass 1. In addition, since the decoration layer 17 does not improve the intensity | strength of the cover glass 1, you may abbreviate | omit it depending on the case.

  FIG. 5 is a cross-sectional view taken along line IV in FIGS. In FIG. 5, the case 4 is omitted. As shown in FIG. 5, the touch detection line 15 is arranged on the surface of the decorative layer 17, that is, the surface opposite to the contact surface of the decorative layer 17 with the transparent substrate 10. A plurality of unit mesh regions 12 connected in series along the second direction Y are arranged on the exposed surface of the transparent substrate 10, that is, the surface on which the decorative layer 17 is not laminated.

  The recent cover glass 1 has a thickness of less than 1 mm and may be damaged even by a slight impact. For this reason, chemical strengthening treatment is often performed on the cover glass 1. In the chemical strengthening treatment, for example, the alkali ion contained in the glass is exchanged with another alkali ion having a larger ion radius at a temperature equal to or lower than the strain point. The glass is strengthened by forming a compressive stress layer that generates compressive stress.

  In contrast, in the present embodiment, the entire periphery of the transparent substrate 10 of the cover glass 1 is covered with the frame body 18 to protect the cover glass 1. Impact resistance can be improved. Therefore, in the cover glass 1 according to the present embodiment, the chemical strengthening process can be omitted and the manufacturing process can be simplified, so that the productivity is improved and the manufacturing cost can be suppressed.

  In addition, the cover glass 1 of this embodiment may attach the frame 18 after performing the chemical strengthening process of the transparent base material 10. FIG. Thereby, the impact resistance can be further improved as compared with the cover glass 1 subjected to a normal chemical strengthening treatment.

  Specific materials of the shrinkable material constituting the frame 18 according to the present embodiment are elastic and shrinkable resins such as natural rubber, butyl rubber, silicon rubber, fluorine rubber, isoprene rubber, and urethane rubber. . Depending on the type of shrinkable material, the color of the frame 18 is transparent, chromatic or achromatic. From the viewpoint of design, the heat-shrinkable material that is the material of the frame 18 may contain at least one of a coloring material, a phosphorescent material, and a light emitting material. Thereby, the frame 18 can be intentionally decorated with a chromatic color or an achromatic color, the design of the frame 18 can be given, and the cover glass 1 that is excellent in design can be provided.

  It is desirable that the shrinkage of the shrinkable material constituting the frame 18 is prepared in advance according to the size of the transparent substrate 10 of the cover glass 1. Thereby, the frame 18 can be attached to the cover glass 1 only by fitting the contracted material along the periphery of the transparent substrate 10. Therefore, the production efficiency of the cover glass 1 can be improved.

  Further, since the frame body 18 uses a shrinkable material, it itself has elasticity. By attaching the frame 18 around the cover glass 1, the edge portion that is most sensitive to the impact of the transparent substrate 10 can be protected, and the cover glass 1 can be obtained without subjecting the transparent substrate 10 to chemical strengthening treatment. The impact resistance performance can be improved, and the production efficiency can be further improved and the member cost can be reduced.

  Next, the manufacturing process of the cover glass 1 according to the present embodiment will be described. First, a large glass 20 that is the basis of the cover glass 1 is prepared. As the large format glass 20, for example, tempered glass can be used. The large format glass 20 has a thickness of about 400 to 700 μm.

  And the decoration layer 17 is formed in a part of one main surface of this large format glass 20 according to the non-active area | region 9 of the cover glass 1, and then, the touch panel sensor 7 is formed on one main surface side of the large format glass 20. Form. The touch panel sensor 7 is formed by OGS (One Grass Solution) that directly forms a sensor electrode using the large glass 20 as a base material. Or another glass base material may be laminated | stacked on the surface of the large format glass 20, and a sensor electrode may be formed on this glass base material. The sensor electrode can be formed of, for example, ITO (indium tin oxide).

  Next, a plurality of resin films 19 that act as an anti-etching mask are attached to both main surfaces of the large glass 20 on which the decorative layer 17 and the touch panel sensor 7 are formed. The size of each resin film 19 is adjusted to the outer size of the cover glass 1, and a gap is provided between the cover glasses 1 that are adjacent vertically and horizontally. These gaps serve as etching grooves for individualization. FIG. 6A is a cross-sectional view in a state in which the resin film 19 is attached to both main surfaces of the large format glass 20. As shown in FIG. 6 (a), the resin film 19 is pasted while being aligned so as to overlap vertically.

  As the resin film 19, for example, biaxially stretched polypropylene or unstretched polypropylene having a thickness of about 50 to 100 μm can be used.

  Next, the large glass 20 exposed from the both surfaces of the resin film 19 is etched into individual pieces by immersion (dipping), spraying, or the like using an etching solution made of a hydrofluoric acid solution, for example. . Thereby, as shown in FIG.6 (b), as for the side surface of the transparent base material 10 for each cover glass 1 separated into pieces, both main surface sides are shaved to the same extent, and the center part of the side surface is sharp. Shape.

  Next, as shown in FIG. 7A, a shrinkable material 21 made of a shrinkable material, which is a material of the frame body 18, is prepared, and the shrinkage 21 is slightly expanded as shown in FIG. 7B. Then, it is fitted on the side surface of each transparent substrate 10 that has been singulated. Since the resin film 19 is affixed on both main surfaces of each of the separated transparent base materials 10, the shrinkable material 21 of the shrinkable material is as shown in FIGS. 7 (c) and 7 (d). Are fitted between the two resin films 19 so as to contact the side surface of the transparent substrate 10. As described above, since the adhesive is preliminarily attached to the inner peripheral surface of the contraction 21, when the contraction 21 comes into contact with the side surface of the transparent substrate 10, the contraction 21 and the transparent group are caused by the adhesive. The material 10 adheres firmly.

  The shrinkable material 21 of the shrinkable material has, for example, an annular shape, and the inner diameter thereof is desirably slightly smaller than the outer size of the transparent substrate 10. In this case, when an operator or a work machine arranges the contracted material 21 along the side surface of the transparent base material 10 in a state where the contracted material 21 is slightly expanded, the contracted material 21 naturally contracts and contacts the side surface of the transparent base material 10. The shrinkage 21 and the transparent substrate 10 can be firmly bonded by the shrinkage force of the shrinkage 21.

  By using the shrinkable material 21 of the shrinkable material as in this embodiment, the workability is improved as compared with, for example, applying a liquid resin material along the periphery of the transparent substrate 10 with a dispenser or the like. Further, since the thickness of the shrinkable material does not vary, the frame 18 having a uniform size can be formed.

  As described above, the shrinkable material 21 is preferably an elastic material so that an operator or the like can slightly stretch and fit into the transparent base material 10. Moreover, as shown in FIG.6 (b), since the side part of the transparent base material 10 separated into pieces is sharp in the center part, the inner peripheral surface of the frame 18 does not contact the entire surface part, There may be a gap between them. Therefore, when the shrinkable material 21 is in contact with the side surface of the transparent substrate 10, it is desirable that the shrinkable material 21 is in contact with the entire side surface. Therefore, the shrinkable material 21 is preferably a flexible and flexible material.

  Next, as shown in FIG.7 (e), the resin film 19 affixed on both surfaces of the transparent base material 10 is peeled. Next, when the shrinkage 21 is a thermosetting resin, heat is applied to the shrinkage 21 fitted around the periphery of the transparent substrate 10 to be cured. Thereby, the frame 18 of the cover glass 1 is completed.

  In order to improve the productivity of the cover glass 1 according to the present embodiment, the cover glass protector 22 having a size that can be fitted to the periphery of the cover glass 1 is prepared in advance as a molded product, and the molded product is transparent. It is desirable to form the frame 18 by fitting it into the peripheral edge of the conductive substrate 10. Further, the cover glass protector 22 is preliminarily made to contain at least one of a coloring material, a phosphorescent material, and a light emitting material in consideration of design properties.

  If such a cover glass protector 22 is prepared, the large glass is separated into individual pieces, and then the cover glass protector 22 is fitted into the individual transparent substrates 10 separated into individual pieces. By bonding with the cover glass 10, the cover glass 1 having the frame 18 can be manufactured very easily, and the productivity can be improved.

  FIG. 8 is a diagram for explaining a manufacturing process of the cover glass protector 22. First, as shown in FIG. 8 (a), a liquid shrinkable material is poured into a cylindrical annular mold 23 and cured to form a shrinkage 21 of the cylindrical annular shrinkable material.

  Next, the mold is removed as shown in FIG. Next, as shown in FIG. 8C, an adhesive 24 is applied to the inner peripheral surface of the contracted material 21. Next, as shown in FIG. 8 (d), the contracted material 21 to which the adhesive 24 is applied is cut into a predetermined thickness along the circumferential direction, and as a result, shown in FIG. 8 (e). Thus, the cover glass protector 22 is obtained.

  Since a large number of cover glass protectors 22 can be produced at a time, the production efficiency is good and the unit price is reduced. Moreover, the outer shape of the cover glass protector 22 is similar to a general-purpose rubber band, and a process of applying an adhesive to the inner peripheral surface may be added using the rubber band manufacturing process.

  The inner peripheral surface of the cover glass protector 22 may be processed into a shape that matches the shape of the side surface of the transparent substrate 10. As shown in FIG. 6, when forming the transparent base material 10 by an etching method, the side surface tends to become a pointed shape. In this case, a concave portion may be formed in advance on the inner peripheral surface of the cover glass protector 22 so that the contact area with the pointed portion of the transparent substrate 10 increases.

  For example, FIG. 9 is a diagram showing some examples of the shape of the inner peripheral surface of the cover glass protector 22. 9A is an example of a flat shape, FIG. 9B is an example having a V-shaped recess, FIG. 9C is an example having a flat recess in a part, and FIG. 9D is a gentle one. The example which has a curved-surface-shaped recessed part is shown. 9A to 9D show an example in which the outer peripheral surface of the cover glass protector 22 is flattened.

  On the other hand, since the outer peripheral surface side of the cover glass protector 22 is in contact with the inner peripheral surface of the housing of the electronic device as shown in FIG. 2, it is necessary to make the shape in accordance with the shape of the inner peripheral surface. For example, FIG. 10 is a diagram showing some examples of the shape of the outer peripheral surface of the cover glass protector 22. FIG. 10A shows an example of a flat outer peripheral surface, FIG. 10B shows an example of a shape close to a spherical surface, and FIG. 10C shows an example of an aspheric shape. In addition, in Fig.10 (a)-FIG.10 (c), the example which flattens the internal peripheral surface of the cover glass protective body 22 is shown.

  As shown in FIGS. 9 and 10, when processing the inner peripheral surface and outer peripheral surface of the cover glass protector 22 into a desired shape, the shape of the mold into which the liquid resin is poured is shown in FIG. 8A. What is necessary is just to process into a desired shape.

  Thus, in this embodiment, since the frame body 18 made of the contracted material 21 of the shrinkable material is disposed in close contact with the periphery of the transparent base material 10, even if the cover glass 1 receives an impact, the impact is applied to the frame body. 18, as a result, it becomes difficult for the impact to be transmitted to the transparent substrate 10, and the impact resistance of the cover glass 1 can be improved without subjecting the transparent substrate 10 to chemical strengthening treatment. .

  Since the shrinkable material 21 of the shrinkable material, which is the material of the frame 18, can be prepared in advance as the cover glass protector 22, the cover glass protector 22 is placed on the periphery of the transparent substrate when the cover glass 1 is manufactured. The frame body 18 can be easily formed simply by fitting, the workability is good, and the member cost is not so much. Further, if the adhesive 24 is attached in advance to the inner peripheral surface of the shrinkable material 21 of the shrinkable material, the frame 18 and the transparent base material 10 are firmly bonded to each other only by being fitted to the periphery of the transparent substrate. Can be made. Furthermore, if a thermosetting resin is used as the shrinkable material, the shrinkage 21 can be cured by applying heat to the shrinkage 21 after fitting the shrinkage 21 to the periphery of the transparent substrate 10. The strength of the frame 18 can be further improved.

  In the present embodiment, the touch panel sensor 7 is formed on the large-sized glass, and the frame 18 may be attached to the individual pieces. Therefore, the manufacturing process for producing the cover glass 1 can be simplified, and the production efficiency can be improved. Manufacturing costs can be reduced.

  Furthermore, since the shrinkage | contractions which comprise the frame 18 are uniform in thickness and width, the thickness and width of the frame 18 can also be made uniform.

  The aspect of the present invention is not limited to the individual embodiments described above, and includes various modifications that can be conceived by those skilled in the art, and the effects of the present invention are not limited to the contents described above. That is, various additions, modifications, and partial deletions can be made without departing from the concept and spirit of the present invention derived from the contents defined in the claims and equivalents thereof.

  DESCRIPTION OF SYMBOLS 1 Cover glass, 2 Display apparatus, 3 Electronic device, 4 Case, 5 Main body part, 6 Pixel display part, 7 Touch panel sensor, 11, 12 Unit mesh area, 13 Crevice, 14, 15 Touch detection line, 16 pads, 17 addition Decoration layer, 18 frame, 19 resin film, 20 large glass, 21 shrinkable material, 22 cover glass protector, 23 mold, 24 adhesive

Claims (8)

A transparent substrate;
A cover glass comprising: an annular frame made of a shrinkable material, which is disposed in close contact with the periphery of the transparent substrate.   The cover glass according to claim 1, wherein the frame body is a shrinkage of a shrinkable material.   The cover glass according to claim 2, wherein the frame body includes the annular contraction and an adhesive attached to an inner peripheral surface of the contraction.   The cover glass according to claim 1, wherein the shrinkable material contains natural rubber.   The cover glass in any one of Claims 1 thru | or 4 provided with the decorating layer laminated | stacked on the said transparent base material from the periphery of the said transparent base material in the predetermined range inside. A touch panel sensor integrally formed on the surface opposite to the observer side surface of the transparent substrate;
On the surface of the observer side of the transparent substrate, an active area capable of touch detection by the touch panel sensor, and an inactive area where touch detection is impossible, are provided,
The decorative layer is arranged to overlap the inactive area,
The cover frame according to claim 5, wherein the frame body is disposed in close contact so as to cover the entire side surface of the periphery of the transparent base material on which the touch panel sensor is integrally formed. Comprising an annular frame made of a shrinkage of a shrinkable material placed in close contact with the periphery of the transparent substrate;
A cover glass protective member having an adhesive attached to the inner peripheral surface of the frame. Pouring a liquid shrinkable material into a cylindrical annular mold and curing to form a shrinkage of the cylindrical annular shrinkable material;
Applying an adhesive to the inner peripheral surface of the shrinkage,
A method of manufacturing a cover glass protective member, comprising: cutting the contracted article, the inner peripheral surface of which is coated with the adhesive, into a predetermined thickness along the circumferential direction.