Display unit

Abstract

To provide a display unit that, when the distance between a protective material and a display is reduced to expand a range where the display is visible, prevents adhesion of the protective material to the display and does not inhibit visibility.SOLUTION: A display unit has a display 107 that includes a display part 941 displaying information and a non-display part 1071; a protective material 112 that covers the display 107; and a display cover 111 that covers the display 107 and an operation key group 122. A gap is formed between the display 107 and the protective material 112 to prevent the display 107 and the protective material 112 from attaching to each other, and the protective material 112 is attached to the display cover 111.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to a display device having a display. [Background technology]

[0002] Some copiers, scanners, printers, etc. use displays in their display units. The displays are installed in openings in the exterior covers, and a protective material is placed on the top of the displays to prevent them from being scratched. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2019-41253 A Summary of the Invention [Problem to be solved by the invention]

[0004] For example, the display section described in Patent Document 1 is unitized, and spacers and cushioning materials are placed between the protective material and the display, leaving a gap between them to prevent contact between the protective material and the display, but the protective material and the display are separated by the distance of the spacer, and the visible range of the display may be narrowed when the user looks at it from an angle.Therefore, there is a method of increasing the distance between the protective material and the display to increase the visible range of the display, but the protective material may stick to the display due to static electricity, etc., resulting in poor visibility.

[0005] To provide a display device in which a protective material and a display are not unitized, and visibility is not impaired even when the protective material is brought close to the display in order to widen the visible range of the display, without the protective material being in close contact with the display. [Means for solving the problem]

[0006] In view of the above, the display device according to the present invention comprises: A display having a display section for displaying information and a non-display section; A protective material for covering the display; A display cover that covers the display and a group of operation keys, forming a gap between the display and the protective material to prevent the display and the protective material from sticking to each other; The protective material is attached to the display cover side. Effect of the Invention

[0007] According to the present invention, even if the protective material is brought closer to the display in order to widen the visible range of the display, the protective material does not come into close contact with the display, and visibility is not impaired. [Brief description of the drawings]

[0008] [Figure 1] 1 is a schematic diagram of an image reading device according to the present invention. [Diagram 2] FIG. 2 is a block diagram of a control unit of the image reading device of FIG. 1. [Diagram 3] 1 is a front view of an image reading device according to a first embodiment of the present invention; [Figure 4] FIG. 2 is an exploded perspective view of the upper cover unit according to the first embodiment of the present invention. [Diagram 5] 1 is a perspective view of a display according to a first embodiment of the present invention. [Figure 6] 1 is a cross-sectional view of the periphery of a display according to a first embodiment of the present invention. [Figure 7] 1 is a cross-sectional view of the periphery of a display according to a first embodiment of the present invention. [Figure 8] 1 is a cross-sectional view of a protective material according to a first embodiment of the present invention when it comes into contact with a display. [Figure 9] 1 is an exploded perspective view of a rectangular spacer and peripheral components of a display according to a first embodiment of the present invention. [Figure 10] FIG. 11 is a schematic diagram of an image reading device according to a second embodiment of the present invention. [Figure 11] FIG. 11 is a cross-sectional view of the periphery of a display according to a second embodiment of the present invention. [Figure 12] FIG. 11 is a cross-sectional view of a protective material according to a second embodiment of the present invention when it comes into contact with a display. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] FIG. 1 is a schematic diagram of an image reading device 100 equipped with a display unit according to the present invention.

[0010] <Device configuration> The image reading device 100 is a device that conveys one or more conveying media S loaded on a mounting table 1 one by one into the device along a route RT, reads the images, and discharges the media to a discharge tray 2. The conveying media S to be read are, for example, sheets such as office paper, checks, business cards, cards, etc., and may be thick or thin sheets. Examples of cards include insurance cards, driver's licenses, and credit cards. The conveying media S also include booklets such as passports. When a booklet is the target, a holder or the like can be used. By placing a booklet in an open state in a transparent holder or the like and placing it on the mounting table 1, the booklet is conveyed together with the holder, and the image can be read.

[0011] <Paper Feed> A first transport unit 10 is provided as a feeding mechanism that feeds the transport medium S along the path RT. In the present invention, the first transport unit 10 includes a feed roller 11 and a separation roller 12 arranged opposite the feed roller 11, and transports the transport medium S on the mounting table 1 one by one in the transport direction (direction D1). A driving force is transmitted to the feed roller 11 from a drive unit 3 such as a motor via a transmission unit 5, and the feed roller 11 is driven to rotate in the direction of the arrow in the figure (the positive direction for transporting the transport medium S along the path RT). The transmission unit 5 is, for example, an electromagnetic clutch, and connects and disconnects the driving force from the drive unit 3 to the feed roller 11.

[0012] <Drive unit> In the present invention, for example, the transmission unit 5 that connects the drive unit 3 and the feed roller 11 is in a state in which the driving force is normally transmitted, and the driving force is interrupted when the transport medium S is reversed or stopped. When the transmission of the driving force is interrupted by the transmission unit 5, the feed roller 11 is in a state in which it can rotate freely. Note that such a transmission unit 5 does not need to be provided when the feed roller 11 is driven in only one direction.

[0013] <Separated structure> The separation roller 12, which is disposed opposite the feed roller 11, is a roller for separating the transport media S one by one, and is in contact with the feed roller 11 with a constant pressure. To ensure this state of contact, the separation roller 12 is provided so as to be able to swing and is configured so as to be biased toward the feed roller 11. A driving force is transmitted to the separation roller 12 from the drive unit 3 via a torque limiter 12a, and the separation roller 12 is driven to rotate in the direction of the solid arrow (the opposite direction to the forward direction of the feed roller 11).

[0014] Since the transmission of driving force is restricted by the torque limiter 12a, the separation roller 12 rotates in a direction (indicated by a dashed arrow) that rotates together with the feed roller 11 when in contact with the feed roller 11. As a result, when multiple conveying media S are conveyed to the pressure contact portion between the feed roller 11 and the separation roller 12, two or more conveying media S except for one are blocked so as not to be conveyed downstream.

[0015] In the present invention, the separation mechanism is constituted by the separation roller 12 and the feed roller 11, but such a separation mechanism is not necessarily provided, and any feed mechanism that sequentially feeds the transport medium S one by one to the path RT will suffice. In addition, when a separation mechanism is provided, instead of a configuration such as the separation roller 12, a separation pad that applies friction to the transport medium S may be pressed against the feed roller 11 to provide a similar separation function.

[0016] <Conveyor structure> The second transport section 20, which serves as a transport mechanism located downstream of the first transport section 10 in the transport direction, includes a drive roller 21 and a driven roller 22 driven by the drive roller 21, and transports the transport medium S transported from the first transport section 10 downstream. A driving force is transmitted to the drive roller 21 from a drive section 4 such as a motor, and the drive roller 21 is driven to rotate in the direction of the arrow in the figure. The driven roller 22 is pressed against the drive roller 21 with a constant pressure, and rotates together with the drive roller 21. The driven roller 22 may be configured to be biased against the drive roller 21 by a biasing unit (not shown) such as a spring.

[0017] The third transport section 30, which is located downstream of the second transport section 20 in the transport direction, includes a drive roller 31 and a driven roller 32 driven by the drive roller 31, and transports the transport medium S transported from the second transport section 20 to the discharge tray 2. In other words, the third transport section 30 functions as a discharge mechanism.

[0018] A driving force is transmitted from a driving unit 4 such as a motor to the driving roller 31, and the driving roller 31 is rotated in the direction of the arrow in the figure. The driven roller 32 is pressed against the driving roller 31 with a constant pressure, and rotates together with the driving roller 31. The driven roller 32 may be configured to be biased against the driving roller 31 by a biasing unit (not shown) such as a spring.

[0019] <Block diagram explanation> The control unit 80 will be described with reference to Fig. 2. Fig. 2 is a block diagram of the control unit 80 of the image reading device 100.

[0020] The control unit 80 includes a CPU 81, a storage unit 82, an operation unit 83, a communication unit 84, an interface unit 85, and a display unit 94. The CPU 81 controls the entire image reading device 100 by executing a program stored in the storage unit 82. The storage unit 82 is composed of, for example, a RAM, a ROM, etc. The operation unit 83 is composed of, for example, a switch, a touch panel, etc., and accepts operations from an operator.

[0021] The communication unit 84 is an interface for information communication with an external device. When assuming a PC (personal computer) as the external device, examples of the communication unit 84 include a USB interface and a SCSI interface. In addition to such a wired communication interface, the communication unit 84 may also be a wireless communication interface, or may be equipped with both wired and wireless communication interfaces.

[0022] The interface unit 85 is an I / O interface for data input / output with the actuator 86 and the sensor 87. The actuator 86 includes the drive units 3 and 4, the transmission unit 5, etc. The sensor 87 includes the double-feed detection sensor 40, the medium detection sensors 50 and 60, the image reading unit 70, etc.

[0023] The display unit 94 is an interface for displaying information on a display such as an LCD or an OLED.

[0024] <Drive by receiving a start instruction from the PC> The basic operation of the image reading apparatus 100 will be described. When the control unit 80 receives, for example, an image reading start instruction from an external personal computer to which the image reading apparatus 100 is connected, it starts driving the first conveyance unit 10 to the third conveyance unit 30. The conveyance medium S stacked on the mounting table 1 is conveyed one by one from the conveyance medium S located at the bottom most.

[0025] Also, as will be described later, the reading of the image may be started by a start key provided on the operation unit 83 of the image reading apparatus 100, and then the start of the image reading may be notified to the external personal computer.

[0026] <Start reading according to the output of the resist sensor> The control unit 80 starts reading the image of the conveyed medium S conveyed by the second conveying unit 20 by the image reading unit 70 at a timing based on the detection result of the medium detection sensor 60, temporarily stores the read image, and sequentially transmits it to the external computer. The conveyed medium S from which the image has been read is discharged by the third conveying unit 30 to the discharge tray 2, and the image reading process of the conveyed medium S is completed.

[0027] First Embodiment 3 is a front view of image reading device 100 equipped with a display unit according to the first embodiment of the present invention. More precisely, it is a view seen from a direction perpendicular to upper cover 110 provided at an angle on the front side of image reading device 100 (direction X in FIG. 1), and is a view seen from slightly above the front with the device placed on the table.

[0028] A display 107 as an example of the display unit 94 and an operation key group 122 as an example of the operation unit 83 are provided inside a display cover 111 at the top of the front side, the display 107 is covered with a protective material 112, and the operation key group 122 includes a start key, a stop key, and the like for starting the operation of the image reading device 100. The display 107 is an LCD, an OLED, or the like.

[0029] FIG. 4 is a perspective view of the upper cover unit 104 in an exploded state.

[0030] The upper cover unit 104 is made up of an upper cover 110, a display cover 111, a protective material 112, a spacer 113, double-sided tapes 115, 125, and 135, and an operation key group 122. The display cover 111 has an opening 114 formed therein.

[0031] 5 is a perspective view of the display 107. The display 107 has a display section 941 and a non-display section 1071 that surrounds the display section.

[0032] FIG. 6 is an enlarged view of the periphery of the display 107 of the image reading device 100 according to the first embodiment of the present invention taken along the line AA of FIG.

[0033] The upper unit 103 is composed of an upper cover unit 104 and an upper frame unit 105 .

[0034] The upper frame unit 105 is composed of an upper frame 106, a display 107, a substrate 108, and a plate 109. The display 107 and the substrate 108 are connected by a cable such as an FFC (not shown), and fixed to the plate 109. The plate 109 is fixed to the upper frame 106.

[0035] 4 and 6, the display cover 111 is provided with an opening 114, and the opening 114 is approximately the same size as the display section 941 of the display 107 shown in Fig. 5. The size of the opening 114 may be approximately the same as or smaller than the display section 941, but having the same size allows the display section 941 to be displayed larger.

[0036] In addition, in this embodiment, the display cover 111 and the upper cover 110 are separate parts, and as shown in FIG. 4, the parts are fixed to each other with double-sided tape 135. However, the fixing method may be other methods such as screws or fitting instead of double-sided tape, and the display cover 111 and the upper cover 110 may be integrated.

[0037] In this embodiment, the protective material 112 is a sheet material such as PET (polyethylene terephthalate). It is larger than the size of the opening 114 of the display cover 111, and preferably has a thickness of, for example, about 0.5 mm or less. However, this is not limited as long as the thickness is sufficient to protect the display 107.

[0038] In this embodiment, the spacer 113 is a sheet material such as PET (polyethylene terephthalate) and has a thickness of, for example, about 0.2 mm. The outer size is approximately the same as that of the protective material 112, and the spacer 113 has a window portion 113a that is larger than the display portion 941 of the display 107 and smaller than the outer size of the display 107 shown in Fig. 4. The thickness is not limited to the above.

[0039] FIG. 7 is an enlarged view of the periphery of the display 107 in the cross section taken along the line BB shown in FIG.

[0040] Spacer 113 is attached to one side of protective material 112 with double-sided tape 125. The surface of protective material 112 on which spacer 113 is not attached is attached to the surface of display cover 111 that is not the exterior surface (hereinafter referred to as the inner surface of display cover 111) with double-sided tape 115.

[0041] Since the opening 114 that displays the display 107 is inclined and dust particles fall downstream in the transport direction (direction D1), it is preferable that the double-sided tape 115 of the protective material 112 and the display cover 111 be attached to the inner surface of the display cover 111 along at least one side of the opening 114 downstream in the transport direction (direction D1).

[0042] In this embodiment, the double-sided tape 115 is attached only to one side of the inner surface of the display cover 111 on the downstream side in the conveyance direction (direction D1).

[0043] Furthermore, instead of attaching the spacer 113 to one side of the protective material 112, the spacer 113 may be attached with double-sided tape 125 to an area of ​​the display 107 where no image is displayed, or the spacer 113 may be attached to both the protective material 112 and the display 107.

[0044] 6 and 7, when upper cover unit 104 is fixed to upper frame unit 105, protective material 112 covers and protects display 107. After fixing, there is a gap T between protective material 112 and display 107. Gap T is provided to prevent protective material 112 from sticking to display 107.

[0045] The protective material 112 and the spacer 113 are thin because they are made of sheet materials, and it is possible to reduce the distance between the protective material 112 and the display 107 .

[0046] FIG. 8 is an enlarged view of the periphery of display 107 when protective material 112 comes into contact with display 107, in the CC cross section shown in FIG.

[0047] When a user touches the protective material 112, the protective material 112 comes into contact with the display 107 as shown in Fig. 8. Because there is a gap T between the protective material 112 and the display 107 as shown in Fig. 7, and the protective material 112 is attached to the upper cover 110, a force acts on the protective material 112 in a direction (arrow V) away from the display 107 due to the elasticity of the spacer 113 and the protective material 112. Therefore, the protective material 112 instantly separates from the display 107, preventing the visibility from being impaired. In addition, the protective material 112 remains partially attached, and the aesthetic appearance of the product is not marred.

[0048] In addition to the above, spacer 113 may be shaped like a strip as shown in Fig. 9, which overlaps with a part of non-display section 1071 of display 107 and has a width that does not extend beyond the outline of protective material 112. Fig. 9 is a perspective view showing protective material 112, strip-shaped spacer 123, display 107, and double-sided tapes 115 and 125 in an expanded state. Strip-shaped spacer 123 is arranged on at least two opposing sides.

[0049] <Second embodiment> In the above-described first embodiment, a configuration has been shown in which the spacer 113 is attached to the protective material 112 so that the display 107 and the protective material 112 do not come into close contact with each other. However, it is also possible to prevent the display 107 and the protective material 112 from coming into close contact with each other without using the spacer 113. This will be explained below. Explanations of units and the like having the same configuration as in the first embodiment will be omitted.

[0050] 10 is a front view of an image reading device 100 equipped with a display unit according to a second embodiment of the present invention. More precisely, it is a view seen from a direction perpendicular to an upper cover 110 provided at an angle on the front side of the image reading device 100 (the X direction in FIG. 1), and is a view seen from slightly above the front with the device placed on the table.

[0051] 11 is an enlarged view of the periphery of a display 107 according to the second embodiment of the present invention in the cross section taken along the line DD shown in FIG.

[0052] The upper unit 203 is composed of an upper cover unit 204 and an upper frame unit 205 .

[0053] A convex rib 222 is provided on the inner surface of the display cover 211 on the upstream side of the opening 214 in the transport direction (D1 direction). The opening 214 that displays the display 107 is inclined, and dust and lint fall to the downstream side in the transport direction (D1 direction), so it is preferable that the convex rib 222 is provided on the upstream side in the transport direction (D1 direction) of the opening 214. In addition, the rib 222 is located on the interior side of the upper surface of the display 107, and is long enough not to come into contact with the plate 109.

[0054] A protective material 212 is attached with double-sided tape 215 to the inner surface of the display cover 211, which is the surface that is not the exterior surface of the display cover 211, and on the downstream side of the opening 214 in the conveying direction (direction D1).

[0055] When the upper cover unit 204 and the upper frame unit 205 are assembled, the protective material 212 comes into contact with a part 1071a of the non-display portion 1071 of the display 107 and the tip portion 222a of the rib 222. The protective material 212 bends slightly outward relative to the display 107.

[0056] A gap P is provided between the protection material 212 on the downstream side in the conveying direction (D1 direction) and the display 107 to prevent them from sticking together.

[0057] FIG. 12 is an enlarged view of the periphery of display 107 when protective material 212 comes into contact with display 107 in the cross section taken along the line DD shown in FIG.

[0058] When a user touches the protective material 212, the protective material 212 comes into contact with the display 107 as shown in Fig. 12. Since the protective material 212 is attached to the upper cover side and is curved, a force acts in a direction (arrow V) away from the display 107 due to the elasticity of the protective material 212. The protective material 212 instantly separates from the display 107, and visibility is not impaired. In addition, the protective material 212 does not partially stick to the display 107, damaging the aesthetic appearance of the product. [Explanation of symbols]

[0059] 100 Image reader S Transport medium 1. Placement table 3 Drive unit 4 Drive unit 5 Transmission section 10 First conveyor section 11 Feed roller 12 Separation roller 80 Control section 93 Display cover 94 Display section 103 Upper Unit 104 Upper cover unit 105 Upper frame unit 106 Upper Frame 107 Display 941 Display section 1071 Hidden part 108 Substrate 109 Plate 110 Top cover 111 Display cover 112 Protective materials 113 Spacer 114 Opening 115, 125, 135, 215 double-sided tape 122 Operation keys 124 Lower Unit 222 Rib

Claims

1. A display having an information display section and a non-display section, A protective material covering the aforementioned display, It has a display cover that covers the aforementioned display and the group of operation keys, In order to prevent the display and the protective material from sticking together, a gap is formed between the display and the protective material. A display device characterized in that the protective material is attached to the display cover side.

2. The display device according to claim 1, characterized in that the protective material is attached to the inner surface of the display cover along at least one side.

3. A spacer is provided between the protective material and the display to form the gap. The display device according to claim 1, characterized in that the spacer is attached to at least one of the protective material or the non-display portion of the display.

4. The display device according to claim 1 or 2, characterized in that the display cover is provided with an opening the size of the display portion of the display.

5. The display device according to claim 3, characterized in that the spacer has a window portion in the portion corresponding to the display area of ​​the display.

6. The display device according to claim 3, characterized in that the spacer is in the shape of a strip and is arranged on at least two opposing sides of the protective material and the non-display portion of the display.

7. The display cover has a protrusion on its inner surface, The display device according to claim 1, characterized in that the protective material is attached to the inner surface of the display cover along one edge, and when the display and the display cover are assembled, it contacts a part of the non-display portion of the display and the tip of the protrusion and curves to form the gap.

8. The display cover is provided on a surface whose front surface intersects with the mounting surface of the display device, The display device according to claim 7, characterized in that the tip of the protrusion contacts the protective material above one side of the protective material.

Images