Touch panel and electronic equipment

Abstract

A touchpad includes: a protective layer; the touch structure layer is stacked on one side of the protective layer; the shielding layer is stacked on the side, away from the protection layer, of the touch structure layer; the electrochromism layer is stacked on the side, away from the touch structure layer, of the shielding layer, and the electrochromism layer is changed into a transparent state from an atomized state when powered on; the pattern display layer is stacked on the side, away from the shielding layer, of the electrochromic layer, and patterns on the pattern display layer can be shielded or displayed by the electrochromic layer. According to the touchpad, when the electrochromic layer is in the atomized state, the touchpad only has a touch function, when the electrochromic layer is in the transparent state, corresponding input operation can be executed according to the displayed pattern, and the functions of the touchpad are diversified; by arranging the shielding layer, the interference of the electrochromic layer on the touch structure layer can be reduced, and the touch effect of the touch structure layer can be guaranteed. The utility model further provides an electronic device which comprises a body and the touchpad, and the touchpad is arranged on the body.

Description

Technical Field

[0001] The present application relates to the field of touch-related technologies, and in particular to a touch panel and an electronic device. Background Art

[0002] The current touch panel has a monochrome glass protective layer attached to one side of the touch structure layer. Since the finished touch panel glass only presents a fixed monochrome color, no characters or patterns are displayed, and it only has a touch function but no input function, the function is single. Utility Model Content

[0003] In view of the above, it is necessary to provide a touch panel and an electronic device to make the touch panel have various functions.

[0004] An embodiment of the present application provides a touch panel, comprising: a protective layer; a touch structure layer stacked on one side of the protective layer; a shielding layer stacked on the side of the touch structure layer away from the protective layer; an electrochromic layer stacked on the side of the shielding layer away from the touch structure layer, the electrochromic layer changing from an atomized state to a transparent state when power is applied; and a pattern display layer stacked on the side of the electrochromic layer away from the shielding layer, the pattern on the pattern display layer being able to be shielded or displayed by the electrochromic layer.

[0005] In the above touch panel, by arranging the electrochromic layer and the pattern display layer on one side of the touch structure layer, when the electrochromic layer is in an atomized state, the pattern of the pattern display layer cannot be displayed. At this time, the touch panel only has a touch function. When the voltage is added to the electrochromic layer, the electrochromic layer becomes transparent, and the pattern of the pattern display layer is revealed. The corresponding input operation can be performed according to the revealed pattern, and the functions of the touch panel are relatively diverse. In addition, by arranging the shielding layer, the interference of the electrochromic layer on the touch structure layer can be reduced, which is conducive to ensuring the touch effect of the touch structure layer.

[0006] In some embodiments, the touch control structure layer includes a touch control substrate layer and two touch control conductive layers, and the two touch control conductive layers are disposed on two opposite sides of the touch control substrate layer.

[0007] In this way, the two touch conductive layers are respectively positive and negative electrodes. When the two touch conductive layers are energized, the touch function can be achieved by pressing the touch structure layer.

[0008] In some embodiments, the electrochromic layer includes a first conductive layer, a liquid crystal layer, and a second conductive layer stacked in sequence, the first conductive layer is connected to the shielding layer, and the second conductive layer is connected to the pattern display layer.

[0009] In this way, the first conductive layer and the second conductive layer are connected to the positive and negative electrodes respectively. When the first conductive layer and the second conductive layer are energized, the electric field generated between the first conductive layer and the second conductive layer can adjust the optical axis orientation of the liquid crystal droplets in the liquid crystal layer, so that the electrochromic layer appears transparent. When the first conductive layer and the second conductive layer are deenergized, the liquid crystal droplets return to their original high haze state.

[0010] In some embodiments, the touch panel further includes an anti-glare layer, wherein the anti-glare layer is disposed between the pattern display layer and the electrochromic layer and is connected to the pattern display layer and the electrochromic layer respectively.

[0011] In this way, the anti-glare layer can scatter the light emitted by the display screen and the external light to avoid glare that affects the user experience.

[0012] In some embodiments, the touch panel further includes a color adjustment layer, and the color adjustment layer is disposed between the shielding layer and the electrochromic layer and is connected to the shielding layer and the electrochromic layer respectively.

[0013] Thus, by adding a toning substance into the toning layer, the color and transparency of the toning layer can be changed.

[0014] In some embodiments, the pattern on the pattern display layer is an interactive interface pattern.

[0015] In this way, when power is turned on, input operation of the touch structure layer can be realized through the interactive interface pattern.

[0016] In some embodiments, the touch panel also includes multiple adhesive layers, which are respectively connected between the protective layer and the touch structure layer, between the touch structure layer and the shielding layer, between the shielding layer and the electrochromic layer, and between the electrochromic layer and the pattern display layer.

[0017] In this way, the connection between the protection layer, the touch structure layer, the shielding layer, the electrochromic layer and the pattern display layer can be made stronger.

[0018] In some embodiments, the thickness of the electrochromic layer ranges from 110 μm to 120 μm.

[0019] In this way, the strength of the electrochromic layer can be ensured.

[0020] In some embodiments, the thickness of the pattern display layer ranges from 45 μm to 55 μm.

[0021] In this way, the strength of the pattern display layer can be ensured to set a desired pattern.

[0022] An embodiment of the present application further provides an electronic device, comprising a body and the touch panel as described above, wherein the touch panel is arranged on the body.

[0023] The above-mentioned electronic device includes a touch panel. By arranging an electrochromic layer and a pattern display layer on one side of the touch structure layer, when the electrochromic layer is in an atomized state, the pattern of the pattern display layer cannot be displayed. At this time, the touch panel only has a touch function. When the voltage is added to the electrochromic layer, the electrochromic layer becomes transparent, and the pattern of the pattern display layer is revealed. The corresponding input operation can be performed according to the revealed pattern, and the functions of the touch panel are relatively diverse. In addition, by arranging a shielding layer, the interference of the electrochromic layer on the touch structure layer can be reduced, which is beneficial to ensuring the touch effect of the touch structure layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the electronic device proposed in the first embodiment of the present application.

[0025] Figure 2 yes Figure 1 The schematic diagram of the partial structural cross-section of the electronic device shown is along the AA line.

[0026] Figure 3 yes Figure 2 A cross-sectional schematic diagram of a touch structure layer in a touch panel is shown.

[0027] Figure 4 yes Figure 2 A schematic cross-sectional view of the electrochromic layer in the touch panel shown.

[0028] Figure 5 It is a schematic cross-sectional diagram of a portion of the structure of an electronic device proposed in the second embodiment of the present application.

[0029] Figure 6 It is a schematic cross-sectional diagram of a portion of the structure of an electronic device proposed in the third embodiment of the present application.

[0030] Figure 7 It is a schematic cross-sectional diagram of a portion of the structure of an electronic device proposed in the fourth embodiment of the present application.

[0031] Figure 8 yes Figure 2 The diagram is a schematic diagram of a pattern display layer in a touch panel according to an embodiment.

[0032] Fig. 9 yes Figure 2 The schematic diagram of the pattern display layer in the touch panel in another embodiment is shown.

[0033] Main component symbols

[0034] Electronic devices 100

[0035] Body 10

[0036] Trackpad 20

[0037] Protective layer 21

[0038] Touch structure layer 22

[0039] Touch substrate layer 221

[0040] Touch conductive layer 222

[0041] Shielding layer 23

[0042] Electrochromic layer 24

[0043] First conductive layer 241

[0044] Liquid crystal layer 242

[0045] Second conductive layer 243

[0046] Pattern display layer 25

[0047] Anti-glare layer 26

[0048] Color layer 27

[0049] Adhesive layer 28 DETAILED DESCRIPTION

[0050] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0051] The embodiments of the present application are further described below in conjunction with the accompanying drawings.

[0052] See also Figure 1 The first embodiment of the present application provides an electronic device 100, including a body 10 and a touch panel 20, wherein the touch panel 20 is disposed on the body 10. The electronic device 100 may be a tablet computer, an electronic paper reader, an MP3 / 4 / 5, a personal digital assistant, a camera, a television, a washing machine, a refrigerator, etc.

[0053] See also Figure 2The touch panel 20 includes a protective layer 21, a touch structure layer 22, a shielding layer 23, an electrochromic layer 24 and a pattern display layer 25. The touch structure layer 22 is stacked on one side of the protective layer 21; the shielding layer 23 is stacked on the side of the touch structure layer 22 away from the protective layer 21; the electrochromic layer 24 is stacked on the side of the shielding layer 23 away from the touch structure layer 22, and the electrochromic layer 24 changes from an atomized state to a transparent state when power is turned on; the pattern display layer 25 is stacked on the side of the electrochromic layer 24 away from the shielding layer 23, and the pattern on the pattern display layer 25 can be shielded or displayed by the electrochromic layer 24.

[0054] In this embodiment, the protection layer 21 is transparent glass. The protection layer 21 has a certain hardness and can protect the touch structure layer 22 .

[0055] It can be understood that in other embodiments, the touch structure layer 22 is arranged on the side of the pattern display layer 25 away from the electrochromic layer 24. When the voltage is added to the electrochromic layer 24, the electrochromic layer 24 becomes transparent, and the pattern of the pattern display layer 25 is revealed. At this time, the protective layer 21 can be pressed according to the revealed pattern and act on the touch structure layer 22, so that the electronic device 100 performs the corresponding function according to the pressing operation.

[0056] In some embodiments, the thickness of the electrochromic layer 24 has a value range L1 of 110 μm-120 μm. Thus, when the thickness of the electrochromic layer 24 is within the above range, the strength of the electrochromic layer 24 can be ensured and it is not easily damaged.

[0057] In some embodiments, the thickness of the pattern display layer 25 has a value range L2 of 45 μm-55 μm. Thus, when the thickness of the pattern display layer 25 is within the above range, the strength of the pattern display layer 25 can be guaranteed to set a desired pattern.

[0058] See also Figure 3 In some embodiments, the touch structure layer 22 includes a touch substrate layer 221 and two touch conductive layers 222, and the two touch conductive layers 222 are arranged on two opposite sides of the touch substrate layer 221. In this embodiment, the material of the touch substrate layer 221 is PET (polyethylene terephthalate) material, and the material of the touch conductive layer 222 is ITO (Indium-Tin Oxide) material, and the touch substrate layer 221 and the touch conductive layer 222 are both transparent materials. In this way, the two touch conductive layers 222 are positive and negative electrodes respectively. When the two touch conductive layers 222 are energized, the touch function can be realized by pressing the touch structure layer 22.

[0059] See also Figure 4In some embodiments, the electrochromic layer 24 includes a first conductive layer 241, a liquid crystal layer 242, and a second conductive layer 243 which are stacked in sequence. The first conductive layer 241 is connected to the shielding layer 23, and the second conductive layer 243 is connected to the pattern display layer 25. The material of the first conductive layer 241 and the second conductive layer 243 is one of transparent conductive materials, for example, the material used is ITO material; the liquid crystal layer 242 mainly contains polymer glue and liquid crystal, and the liquid crystal layer 242 is a liquid crystal dispersed in a micron-level droplet in an organic solid polymer matrix. In this way, the first conductive layer 241 and the second conductive layer 243 are connected to positive and negative electrodes respectively. When the first conductive layer 241 and the second conductive layer 243 are energized, the electric field generated between the first conductive layer 241 and the second conductive layer 243 can adjust the optical axis orientation of the liquid crystal droplets in the liquid crystal layer 242, so that the electrochromic layer 24 is transparent. When the first conductive layer 241 and the second conductive layer 243 are deenergized, the liquid crystal droplets return to the initial high haze state.

[0060] See also Figure 5 In some embodiments, the touch panel 20 further includes an anti-glare layer 26, which is disposed between the pattern display layer 25 and the electrochromic layer 24 and connected to the pattern display layer 25 and the electrochromic layer 24 respectively. In this embodiment, the anti-glare layer 26 is made of PET material. In this way, the anti-glare layer 26 can scatter the light emitted by the display screen and the external light to avoid glare that affects the user experience.

[0061] See also Figure 6 In some embodiments, the touch panel 20 further includes a coloring layer 27, which is disposed between the shielding layer 23 and the electrochromic layer 24 and connected to the shielding layer 23 and the electrochromic layer 24 respectively. In this embodiment, the material of the coloring layer 27 is PET material. In this way, by adding a coloring substance to the coloring layer 27, the color and transparency of the coloring layer 27 can be changed. The coloring substance can be a metal ion, and the coloring layer 27 can be light blue, light red, etc. after coloring, but is not limited thereto.

[0062] See also Figure 7 In some embodiments, the touch panel 20 further includes a plurality of adhesive layers 28, which are respectively connected between the protective layer 21 and the touch structure layer 22, between the touch structure layer 22 and the shielding layer 23, between the shielding layer 23 and the electrochromic layer 24, and between the electrochromic layer 24 and the pattern display layer 25. In this embodiment, the adhesive layer 28 is an OCA optical adhesive layer. In this way, the connection between the protective layer 21, the touch structure layer 22, the shielding layer 23, the electrochromic layer 24, and the pattern display layer 25 can be made more secure.

[0063] See also Figure 8In some embodiments, the pattern on the pattern display layer 25 is an interactive interface pattern. For example, a numeric keypad. In this embodiment, the material of the pattern display layer 25 is ink, and the pattern is formed on the material by Deco film or CG printing. In this way, the interactive interface pattern on the pattern display layer 25 is shielded when the electrochromic layer 24 is in a foggy state, and the interactive interface pattern on the pattern display layer 25 cannot be seen from above the protective layer 21; the interactive interface pattern on the pattern display layer 25 is revealed when the electrochromic layer 24 is transparent, and the interactive interface pattern on the pattern display layer 25 can be seen from above the protective layer 21 to perform interactive operations.

[0064] It can be understood that the pattern on the pattern display layer 25 can also be a non-interactive interface pattern, which is a pattern used only for display, for example Fig. 9 The cat pattern in the pattern display layer 25 is shielded when the electrochromic layer 24 is in a foggy state, and the non-interactive interface pattern on the pattern display layer 25 cannot be seen from above the protective layer 21; the non-interactive interface pattern on the pattern display layer 25 is revealed when the electrochromic layer 24 is transparent, and the non-interactive interface pattern on the pattern display layer 25 can be seen from above the protective layer 21.

[0065] The above-mentioned electronic device 100 includes a touch panel 20. By setting an electrochromic layer 24 and a pattern display layer 25 on one side of the touch structure layer 22, when the electrochromic layer 24 is in an atomized state, the pattern of the pattern display layer 25 cannot be displayed. At this time, the touch panel 20 only has a touch function. When the voltage is added to the electrochromic layer 24, the electrochromic layer 24 becomes transparent, and the pattern of the pattern display layer 25 is revealed. The corresponding input operation can be performed according to the revealed pattern. The functions of the touch panel 20 are relatively diverse; and by setting the shielding layer 23, the interference of the electrochromic layer 24 on the touch structure layer 22 can be reduced, which is conducive to ensuring the touch effect of the touch structure layer 22.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application and are not intended to limit it. Although the present application has been described in detail with reference to the preferred embodiments, a person of ordinary skill in the art should understand that the technical solution of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present application.

Claims

1. A touch panel, characterized in that: include: Protective layer; A touch structure layer, stacked on one side of the protective layer; A shielding layer, stacked on a side of the touch structure layer away from the protective layer; An electrochromic layer, stacked on a side of the shielding layer away from the touch structure layer, wherein the electrochromic layer changes from an atomized state to a transparent state when powered on; The pattern display layer is stacked on the side of the electrochromic layer away from the shielding layer, and the pattern on the pattern display layer can be shielded or displayed by the electrochromic layer.

2. The touch panel according to claim 1, wherein: The touch control structure layer includes a touch control substrate layer and two touch control conductive layers. The two touch control conductive layers are arranged on two opposite side surfaces of the touch control substrate layer.

3. The touch panel according to claim 1, wherein: The electrochromic layer includes a first conductive layer, a liquid crystal layer and a second conductive layer which are sequentially stacked, the first conductive layer is connected to the shielding layer, and the second conductive layer is connected to the pattern display layer.

4. The touch panel according to claim 1, wherein: The touch panel further comprises an anti-glare layer, which is arranged between the pattern display layer and the electrochromic layer and is connected to the pattern display layer and the electrochromic layer respectively.

5. The touch panel according to claim 1, wherein: The touch panel further includes a color adjustment layer, which is disposed between the shielding layer and the electrochromic layer and is connected to the shielding layer and the electrochromic layer respectively.

6. The touch panel according to claim 1, wherein: The pattern on the pattern display layer is an interactive interface pattern.

7. The touch panel according to claim 1, wherein: The touch panel further includes a plurality of adhesive layers, which are respectively connected between the protection layer and the touch structure layer, between the touch structure layer and the shielding layer, between the shielding layer and the electrochromic layer, and between the electrochromic layer and the pattern display layer.

8. The touch panel according to claim 1, wherein: The thickness of the electrochromic layer ranges from 110 μm to 120 μm.

9. The touch panel according to claim 1, wherein: The thickness of the pattern display layer ranges from 45 μm to 55 μm.

10. An electronic device, characterized in that: It comprises a body and a touch panel as described in any one of claims 1 to 9, wherein the touch panel is arranged on the body.

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