Touch component, touch display device and electronic equipment

Abstract

The invention discloses a touch control assembly, a touch control display device and electronic equipment, the touch control assembly is used for the touch control display device, the touch control assembly comprises a substrate, a photosensitive device and a touch panel, and the substrate is used for being arranged on a display assembly of the touch control display device; the photosensitive device is arranged on the substrate; the touch panel is arranged on the photosensitive device, the touch panel is a flexible piece, and the touch panel is used for receiving touch pressure to deform; when the touch panel is not subjected to touch pressure, light rays are totally reflected in the touch panel, and when the touch panel is subjected to touch pressure, the light rays are emitted into the photosensitive device from the touch panel. According to the touch control assembly, the photosensitive device and the touch panel are arranged, the photosensitive device can send out the signal according to the received light so as to accurately position the touch control position, the structure is simple, the manufacturing process can be simplified conveniently, and disassembly and assembly are convenient.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a touch control component, a touch control display device and an electronic device. Background Art

[0002] With the rapid development of display technology, the touch function of the display screen has become a major concern for display products. The touch module of the existing touch screen is integrated in the touch screen, which has a complex structure, is difficult to manufacture, and is not easy to disassemble and assemble. Summary of the invention

[0003] The purpose of the present application is to provide a touch control component, a touch control display device and an electronic device. The touch control component has a simple structure and is easy to assemble and disassemble.

[0004] To achieve the purpose of this application, this application provides the following technical solutions: In a first aspect, the present application provides a touch control component for a touch display device, comprising a substrate, a photosensitive device and a touch panel, wherein the substrate is used to be arranged on the display component of the touch display device; the photosensitive device is arranged on the substrate; the touch panel is arranged on the photosensitive device, the touch panel is a flexible member, and the touch panel is used to deform by receiving touch pressure; When there is no touch pressure, the light is totally reflected in the touch panel, and when there is touch pressure, the light is emitted from the touch panel into the photosensitive device.

[0005] In one embodiment, the touch panel includes a connected plate body and a protrusion, wherein the protrusion protrudes from a surface of the plate body facing the substrate, and the protrusion faces the photosensitive device; When there is no touch pressure, the light incident from the plate body is totally reflected in the protrusion; when there is touch pressure, the light incident from the plate body is incident into the photosensitive device through the protrusion.

[0006] In one embodiment, the protrusion is hemispherical, and the outer surface of the protrusion is a spherical surface protruding out of the plate body.

[0007] In one embodiment, the protrusions and the photosensitive devices are both arranged in an array, and the multiple protrusions and the multiple photosensitive devices are arranged in a one-to-one correspondence; the substrate also includes a plurality of detection lines, the photosensitive devices are electrically connected to the detection lines, and the detection lines are used to transmit the signals generated by the photosensitive devices.

[0008] In one embodiment, the photosensitive devices in the same column or row are connected in series to the same detection line.

[0009] In one embodiment, a transparent conductive layer is disposed on a surface of the touch panel facing away from the substrate.

[0010] In one embodiment, the touch control assembly further includes a light source, which is disposed on a side of the touch panel and is used to input light to the touch panel.

[0011] In a second aspect, the present application further provides a touch display device, comprising a display component and a touch component as described in any one of the various embodiments of the first aspect, wherein a substrate of the touch component is disposed on the display component.

[0012] In one embodiment, the display component includes a plurality of pixels arranged in an array, the touch component includes a plurality of photosensitive devices arranged in an array, and the plurality of photosensitive devices are arranged corresponding to the plurality of pixels; the display component also includes a scan line and a data line, and the touch component also includes a first signal line and a second signal line, and the first signal line and the second signal line are both electrically connected to the photosensitive device; the scan line and the first signal line have the same extension direction, and the data line and the second signal line have the same extension direction, and in the direction in which the display component and the touch component are stacked, the scan line overlaps with the first signal line, and the data line overlaps with the second signal line.

[0013] In a third aspect, the present application further provides an electronic device, comprising a housing and a touch display device as described in any one of the various embodiments of the second aspect, wherein the touch display device is accommodated in the housing.

[0014] By setting a photosensitive device and a touch panel, the touch panel is a flexible part and is used to deform when receiving touch pressure. When there is no touch pressure, the light is totally reflected in the touch panel. When receiving touch pressure, the light is emitted from the touch panel into the photosensitive device. In this way, the photosensitive device can send a signal according to the received light to accurately locate the touch position. The structure of the touch component is simple, which is convenient for simplifying the manufacturing process and easy to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 is a partial cross-sectional schematic diagram of a touch display device according to an embodiment; Figure 2 is a schematic cross-sectional view of a touch panel of an embodiment; Figure 3 is a schematic top view of a portion of a touch control assembly of an embodiment; Figure 4 is a schematic top view of a portion of a touch display device according to an embodiment; Figure 5 is a schematic diagram of an electronic device according to an embodiment.

[0017] Description of reference numerals: 1000-Electronic equipment; 100-touch display device, 10-touch component, 11-substrate, 111-detection line, 112-first signal line, 113-second signal line, 12-photosensitive device, 13-touch panel, 131-board body, 132-protrusion, 14-light source, 20-display component, 21-pixel, 22-color film substrate, 23-array substrate, 231-pixel electrode, 232-thin film transistor, 24-liquid crystal layer, 25-scanning line, 26-data line; 200-housing; X-first direction, Y-second direction, Z-third direction. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there can be a central component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there can be a central component at the same time.

[0020] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this application and in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in this application includes any and all combinations of one or more of the related listed items.

[0021] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0022] Please refer to Figure 5An embodiment of the present application provides an electronic device 1000 , including a housing 200 and a touch display device 100 in the embodiment of the present application, and the touch display device 100 is accommodated in the housing 200 .

[0023] Optionally, the electronic device 1000 may be a mobile phone, tablet, computer, electronic paper, etc., without specific limitation. When applying touch pressure to the touch display device 100 of the electronic device 1000, it may be touched directly by a finger or by other devices such as a stylus, etc., without specific limitation.

[0024] Optionally, the connection between the housing 200 and the touch display device 100 may be bonding, snap-on, screw-on, magnetically connected, etc., without specific limitation. The shape of the touch display device 100 may be square, circular, rectangular, trapezoidal, irregular, etc., and the shape of the housing 200 may correspond to that of the touch display device 100, without limitation.

[0025] The electronic device 1000 in the embodiment of the present application adopts the touch display device 100 in the embodiment of the present application. The touch display device 100 has high touch accuracy and accurate touch position positioning.

[0026] Please refer to Figure 1 The embodiment of the present application further provides a touch display device 100 , including a display component 20 and a touch component 10 in the embodiment of the present application, wherein a substrate 11 of the touch component 10 is disposed on the display component 20 .

[0027] The display component 20 can be any feasible display component in the art, such as a liquid crystal display screen, etc., without specific limitation. The display component 20 can be an independently purchased display component or a self-made display component, without limitation.

[0028] The touch control assembly 10 in the embodiment of the present application is described in detail below.

[0029] With the rapid development of display technology, the touch function of the display screen has become a major focus of people for display products.

[0030] Please refer to Figure 1 The present application provides a touch control component 10 for a touch control display device 100 . The touch control component 10 includes a substrate 11 , a photosensitive device 12 and a touch panel 13 .

[0031] The substrate 11 is used to be arranged on the display component 20 of the touch display device 100. The substrate 11 can be a transparent substrate commonly used in the art, and the transparent substrate can be a transparent plastic substrate or a transparent insulating substrate, etc., without specific limitation. In one embodiment, the transparent substrate is a polymethyl methacrylate (PMMA) board. It can be understood that the thickness of the substrate 11 can be set according to demand, and the embodiment of the present application does not impose additional restrictions on this. The connection method between the substrate 11 and the display component 20 can be bonding, snap-on, screw connection, magnetic connection, etc., without specific limitation.

[0032] The photosensitive device 12 is disposed on the substrate 11. The photosensitive device 12 may be a commonly used photosensitive component in the art, and may output different signals according to the size of the light flux, and is not specifically limited.

[0033] In a specific embodiment, the photosensitive device 12 is a thin film transistor 232 (Thin Film Transistor, TFT, hereinafter referred to as photosensitive TFT). When the photosensitive TFT is irradiated by light, its characteristic curve moves upward and the leakage current becomes larger. Therefore, the change of light in the area where the touch panel 13 is subjected to touch pressure will cause the photosensitive TFT to generate leakage current, and the function of detecting the touch area is realized by detecting the change of leakage current.

[0034] The photosensitive device 12 and the substrate 11 may be connected by bonding, clamping, screwing, etc., without any specific limitation.

[0035] The touch panel 13 is disposed on the photosensitive device 12 . The touch panel 13 is a flexible member and is used to deform by receiving touch pressure.

[0036] There is no need for any other supporting structure between the touch panel 13 and the substrate 11, and the touch panel 13 is supported by the photosensitive device 12, in which case the touch panel 13 is in direct contact with the photosensitive device 12; alternatively, an additional supporting structure is provided between the touch panel 13 and the substrate 11, in which case the touch panel 13 and the photosensitive device 12 may be in contact with each other or may have a gap therebetween, without any specific limitation.

[0037] For example, the touch component 10 also includes a frame, which is connected to the four edges of the substrate 11 and to the substrate 11 to provide support for the substrate 11; or, a transparent support column is also arranged between the substrate 11 and the touch panel 13, one end of the support column is connected to the substrate 11, and the other end is connected to the touch panel 13, and the support column is spaced apart from the photosensitive device 12.

[0038] The touch panel 13 may be an integrated structure, that is, the touch panel 13 is an integrated structure made by an integrated molding process. Alternatively, the touch panel 13 may also be a split structure, and the various parts are connected and fixed by bonding, clamping, etc., without specific limitation. In a specific embodiment, the touch panel 13 is an integrated structure made of a high-transmittance resin by an integrated molding process.

[0039] When there is no touch pressure, the light is totally reflected in the touch panel 13 . When there is touch pressure, the light is incident from the touch panel 13 into the photosensitive device 12 .

[0040] Total reflection means that when light is incident from a denser medium (a medium with a larger refractive index) into a less dense medium (a medium with a smaller refractive index), if the incident angle is greater than or equal to a certain critical angle (θc), the light will no longer be refracted but will be completely reflected back to the original medium. The touch panel 13 in the embodiment of the present application applies this principle when there is no touch pressure. Under normal circumstances, the incident light will be reflected and will not irradiate the photosensitive device 12.

[0041] When receiving touch pressure, the flexible touch panel 13 is deformed by pressure and loses its total reflection function, so that the light is refracted, and the light flux irradiated on the photosensitive device 12 becomes larger. The photosensitive device 12 sends a signal to define the user's touch position.

[0042] Taking the photosensitive device 12 as a photosensitive TFT as an example, when receiving touch pressure, the light flux irradiating the photosensitive TFT becomes larger, which will stimulate the charged particles in the photosensitive TFT channel, making it active, and the characteristic curve of the photosensitive TFT moves up, resulting in an increase in leakage current. The signal is transmitted to the control module through another signal line for recognition and then fed back to the display screen, and the display screen performs corresponding display to perform the touch display function of the touch display device 100.

[0043] The touch control assembly 10 in the embodiment of the present application is provided with a photosensitive device 12 and a touch panel 13. The touch panel 13 is a flexible member and is used to deform by receiving touch pressure. When there is no touch pressure, the light is totally reflected in the touch panel 13. When there is touch pressure, the light is emitted from the touch panel 13 into the photosensitive device 12. In this way, the photosensitive device 12 can send a signal according to the received light to accurately locate the touch position. The structure is simple, which facilitates the simplification of the manufacturing process.

[0044] In addition, the touch assembly 10 in the embodiment of the present application can be used as the smallest selling unit that can be sold independently. The touch assembly 10 in the embodiment of the present application can match display screens with the same external dimensions but different pixel sizes, and has a high degree of adaptability. When the touch assembly 10 needs to be repaired or replaced, only the touch assembly 10 can be disassembled for repair or replacement without disassembling the entire touch display device 100, which is convenient for disassembly and assembly.

[0045] In one embodiment, Figure 2 As shown, the touch panel 13 includes a connected plate body 131 and a protrusion 132, the protrusion 132 protrudes from the surface of the plate body 131 facing the substrate 11, and the protrusion 132 is opposite to the photosensitive device 12. Figure 2 As shown in (A), the light incident from the plate 131 is totally reflected in the protrusion 132; when receiving touch pressure, as shown in Figure 2 As shown in (B), the light incident from the plate 131 enters the photosensitive device 12 through the protrusion 132 .

[0046] The touch pad 13 may be an integrated structure, that is, the plate body 131 and the protrusion 132 are an integrated structure made by an integrated molding process, in which case the plate body 131 and the protrusion 132 are made of the same material. Alternatively, the touch pad 13 may also be a split structure, in which the plate body 131 and the protrusion 132 are connected and fixed by bonding, clamping, etc., in which case the plate body 131 and the protrusion 132 may be made of the same material or different materials, and there is no specific limitation. The plate body 131 may be a flexible part or a rigid part, and the protrusion 132 may be a flexible part.

[0047] In a specific embodiment, the plate body 131 is made of glass material commonly used in the art, the protrusion 132 is made of silicone material commonly used in the art, and the touch panel 13 is formed by pressing the plate body 131 made of glass material and the protrusion 132 made of silicone material together.

[0048] Optionally, the shape of the plate 131 can be square, rectangular, circular, trapezoidal, regular polygonal, irregular shape, etc., which can be selected according to actual needs and is not specifically limited.

[0049] The specific number of the protrusions 132 is not limited, and can be set according to the required accuracy and the pixel size of the display component 20 of the touch display device 100. The shape of the protrusions 132 can be block-shaped, columnar, hemispherical, etc., as long as the light is fully reflected in the protrusions 132 when there is no touch pressure, and there is no specific limitation.

[0050] In one embodiment, Figure 2 As shown, the protrusion 132 is hemispherical, and the outer surface of the protrusion 132 is a spherical surface protruding from the plate body 131. In this way, when there is no touch pressure, the light incident from the plate body 131 can be totally reflected in the protrusion 132 and emitted from the plate body 131.

[0051] Optionally, the touch panel 13 is spaced apart from the substrate 11 and when no touch pressure is applied, a first distance exists between an end of the protrusion 132 away from the plate body 131 and the photosensitive device 12 , and the first distance is less than or equal to a first preset value.

[0052] Optionally, the first preset value ranges from 0 mm to 2 mm, and the specific value of the first preset value can be 0 mm, 0.2 mm, 0.5 mm, 0.7 mm, 1 mm, 1.2 mm, 1.5 mm, 1.7 mm, etc., without specific limitation. The first distance between the protrusion 132 and the photosensitive device 12 is less than or equal to the first preset value, and the first distance is a natural number. In a specific embodiment, when the first preset value is equal to 0 mm, the first distance is equal to 0 mm, that is, the protrusion 132 is just in contact with the photosensitive device 12.

[0053] When there is no touch pressure, the light incident from the plate body 131 is totally reflected in the protrusion 132 and then emitted through the plate body 131; when there is touch pressure, the protrusion 132 is deformed, and its totally reflective structure is destroyed, so the light cannot be totally reflected in the protrusion 132, but is refracted by the protrusion 132 and then enters the photosensitive device 12, and the photosensitive device 12 sends a signal to display the touch position. By setting the touch panel 13 to include the connected plate body 131 and the protrusion 132, the photosensitive device 12 can send a signal according to the received light to accurately locate the touch position, with sensitive detection and accurate positioning.

[0054] In one embodiment, Figure 1 and Figure 3 As shown, the protrusions 132 and the photosensitive devices 12 are arranged in an array, and the protrusions 132 and the photosensitive devices 12 are arranged one by one. The substrate 11 also includes a plurality of detection lines 111, and the photosensitive devices 12 are electrically connected to the detection lines 111, and the detection lines 111 are used to transmit the signals generated by the photosensitive devices 12.

[0055] Optionally, the number of protrusions 132 and photosensitive devices 12 is the same, and multiple protrusions 132 and multiple photosensitive devices 12 are arranged in multiple rows and columns. The spacing between two adjacent rows and two adjacent columns can be the same or different, and there is no specific limitation.

[0056] Optionally, the plurality of detection lines 111 are arranged in parallel, and the plurality of detection lines 111 may be arranged at intervals along the row direction or column direction of the array of photosensitive devices 12 , without any specific limitation.

[0057] refer to Figure 1 , first define the direction. X is the first direction, Y is the second direction, and Z is the third direction. The first direction X, the second direction Y, and the third direction Z are perpendicular to each other. The substrate 11 is disposed on the display assembly 20 in the third direction Z, the photosensitive device 12 is disposed on the substrate 11 in the third direction Z, and the touch panel 13 is disposed on the photosensitive device 12 in the third direction Z. In one embodiment, the first direction X is the row direction in which the plurality of protrusions 132 and the plurality of photosensitive devices 12 are arranged in an array, and the second direction Y is the column direction in which the plurality of protrusions 132 and the plurality of photosensitive devices 12 are arranged in an array.

[0058] Optionally, the plurality of detection lines 111 extend along the second direction Y, and the plurality of detection lines 111 are arranged at intervals in the first direction X.

[0059] When the photosensitive device 12 is a TFT, the detection line 111 is electrically connected to the drain electrode of the photosensitive device 12, and the detection line 111 is used to transmit the leakage current generated by the photosensitive device 12. When receiving touch pressure, the light flux irradiated on the TFT becomes larger, which will stimulate the charged particles in the TFT channel and make it active. The characteristic curve of the TFT moves up, resulting in an increase in the leakage current transmitted by the detection line 111. By detecting the leakage current size in the detection line 111, the integrated circuit (IC) identifies it and feeds it back to the display component 20, so that the touch position can be accurately located, with sensitive detection and accurate positioning.

[0060] When the photosensitive device 12 is other devices, the detection line 111 corresponds to the signal generated by the photosensitive device 12 for transmitting the touch position.

[0061] By providing a plurality of protrusions 132 and a plurality of photosensitive devices 12 arranged in an array, the photosensitive devices 12 are electrically connected to the detection lines 111 , and the signal of the photosensitive device 12 changing due to the touch can be transmitted in time.

[0062] In one embodiment, the photosensitive devices 12 in the same column or row are connected in series to the same detection line 111 .

[0063] Optional, such as Figure 3 As shown, the detection line 111 extends along the second direction Y, and the photosensitive devices 12 located on the same straight line in the second direction Y are connected in series to the same detection line 111. Since the signal emitted by a single photosensitive device 12 is weak, and the user presses multiple hemispherical structures when touching, causing multiple photosensitive devices 12 to react, connecting the photosensitive devices 12 along the second direction Y in series to the same detection line 111 can increase the signal transmitted by the detection line 111 to improve IC sensing. Afterwards, the IC will compare the time when the signal is generated with the time when which row of photosensitive devices 12 is turned on at this time to confirm the touch area.

[0064] When the photosensitive device 12 is a TFT, the drain electrodes of the photosensitive device 12 along the second direction Y are connected in series to the same detection line 111 to increase the leakage current transmitted by the detection line 111 .

[0065] By arranging the photosensitive devices 12 in the same column or row to be connected in series to the same detection line 111 , the signal transmitted by the detection line 111 can be increased, which is convenient for detection.

[0066] In one embodiment, a transparent conductive layer is disposed on the surface of the touch panel 13 facing away from the substrate 11 .

[0067] Optionally, the transparent conductive layer may be an ITO (indium tin oxide) electrode, an AZO (aluminum doped zinc oxide) electrode, etc., without specific limitation.

[0068] By providing a transparent conductive layer, when a user touches the screen, the transparent conductive layer can quickly conduct away the static charge, thereby avoiding interference of static electricity on the touch signal.

[0069] Optionally, the light incident from the touch panel 13 may be ambient light, or a light source 14 may be provided to provide incident light.

[0070] In one embodiment, Figure 1 As shown, the touch control assembly 10 further includes a light source 14, which is disposed on the side of the touch panel 13 and is used to input light to the touch panel 13. When there is no touch pressure, the light is totally reflected in the touch panel 13, and when there is touch pressure, the light is emitted from the touch panel 13 into the photosensitive device 12, so that the photosensitive device 12 can send a signal according to the received light to accurately locate the touch position, with sensitive detection and accurate positioning.

[0071] Optionally, the light source 14 is disposed on the side of the plate body 131 of the touch panel 13, and the light source 14 can be an LED lamp bead commonly used in the art, etc., without limitation. The number of light sources 14 can be one or more, without limitation. When a photosensitive device 12 that is more sensitive to light is used, one light source 14 can be provided; when the photosensitive device 12 is less sensitive to light, multiple light sources 14 can also be provided to increase the incident light flux, so as to improve the accuracy of the photosensitive device 12.

[0072] The light provided by the light source 14 can be normal backlight or infrared light, which can be selected according to actual needs. Take the photosensitive device 12 as TFT as an example: the light source 14 emits normal light, and directly uses the light to illuminate the photosensitive TFT to increase the leakage current of the photosensitive TFT. The effect is stable, but it is necessary to deal with the problem of the whitening of the surface brightness of the touch panel 13; the light source 14 emits infrared light to illuminate the photosensitive TFT, and stimulates the activity of charged particles through thermal effects and light. Since infrared light is invisible light, the touch panel 13 will not turn white, but the heat will increase accordingly, and heat dissipation needs to be done well; without setting up an additional light source 14, directly using ambient light for illumination, the screen will not turn white, and the heat will not increase, but due to the limited intensity of ambient light, it is necessary to ensure that the photosensitive device 12 has sufficient sensitivity.

[0073] In one embodiment, Figure 1 and Figure 4 As shown, Figure 4The solid line in the figure represents the structure of the touch control component 10, and the dotted line represents the structure of the display component 20. The display component 20 includes a plurality of pixels 21 arranged in an array, and the touch control component 10 includes a plurality of photosensitive devices 12 arranged in an array, and the plurality of photosensitive devices 12 are arranged correspondingly to the plurality of pixels 21.

[0074] Optionally, the display component 20 can be a liquid crystal display screen commonly used in the art, etc., and is not specifically limited. The display component 20 includes a color filter substrate 22, an array substrate 23, and a liquid crystal layer 24. The color filter substrate 22 is arranged opposite to the array substrate 23, and the liquid crystal layer 24 is arranged between the color filter substrate 22 and the array substrate 23. The substrate 11 of the touch component 10 is arranged on the color filter substrate 22.

[0075] Optionally, the plurality of pixels 21 arranged in an array may be an integrated structure or a split structure, and the plurality of pixels 21 are connected to each other, without any specific limitation.

[0076] The display assembly 20 further includes scan lines 25 and data lines 26. The array substrate 23 includes a plurality of scan lines 25 and a plurality of data lines 26, wherein the plurality of scan lines 25 extend along a first direction X, and the plurality of data lines 26 extend along a second direction Y, wherein each pixel 21 is connected to a scan line 25 and a data line 26, and a pixel 21 is defined between two adjacent scan lines 25 and two adjacent data lines 26.

[0077] Optionally, the plurality of scan lines 25 are parallel to each other and are arranged at equal intervals, and the plurality of data lines 26 are parallel to each other and are arranged at equal intervals. In the orthographic projection along the third direction Z, the plurality of scan lines 25 and the plurality of data lines 26 are arranged perpendicularly and staggered to each other, and a pixel 21 is formed between each two adjacent scan lines 25 and two adjacent data lines 26, and a plurality of pixels 21 are formed between the plurality of scan lines 25 and the plurality of data lines 26, and the plurality of pixels 21 together constitute an effective display area of ​​the display component 20.

[0078] Optional, such as Figure 4 As shown, a pixel electrode 231 and a thin film transistor 232 are provided in the array substrate 23 of each pixel 21, the gate of the thin film transistor 232 is electrically connected to the scan line 25, the source of the thin film transistor 232 is electrically connected to the data line 26, and the drain of the thin film transistor 232 is electrically connected to the pixel electrode 231.

[0079] Optionally, the pixel electrode 231 is a transparent electrode commonly used in the art, and the transparent electrode may be an ITO (indium tin oxide) electrode, an AZO (aluminum-doped zinc oxide) electrode, etc., without specific limitation.

[0080] Optionally, the number of photosensitive devices 12 is the same as the number of pixels 21, that is, multiple photosensitive devices 12 are arranged in a one-to-one correspondence with multiple pixels 21; or, the number of photosensitive devices 12 is different from the number of pixels 21, and each pixel 21 may correspond to at least one photosensitive device 12, or each photosensitive device 12 may correspond to at least one pixel 21, without specific limitation.

[0081] With such configuration, for touch display devices 100 with different resolutions whose display areas are the same in size and whose pixel 21 sizes are in multiple relationship, for example, a display component 20 of the same size, a touch component 10 made with a larger 12*12 pixel 21 size can be used for a display component 20 with a smaller 3*12 or 4*12 pixel 21 size, thereby improving the utilization rate of the touch component 10.

[0082] The touch control assembly 10 further includes a first signal line 112 and a second signal line 113 , and the first signal line 112 and the second signal line 113 are electrically connected to the photosensitive device 12 .

[0083] Optionally, the photosensitive device 12 is a photosensitive TFT, the first signal line 112 is used to be electrically connected to the gate of the photosensitive device 12, and the second signal line 113 is used to be electrically connected to the source of the photosensitive device 12. In one embodiment, there are multiple first signal lines 112 and multiple second signal lines 113, the multiple first signal lines 112 extend along the first direction X, and the multiple second signal lines 113 extend along the second direction Y, and each photosensitive device 12 is connected to a scan line 25 and a data line 26.

[0084] Optionally, the plurality of first signal lines 112 are parallel to each other and are equidistantly spaced, and the plurality of second signal lines 113 are parallel to each other and are equidistantly spaced. In the orthographic projection along the third direction Z, the plurality of first signal lines 112 and the plurality of second signal lines 113 are perpendicularly staggered.

[0085] When the touch component 10 is working, the first signal line 112 is turned on line by line, and the photosensitive TFT is turned on normally. When the user touches the screen, the protrusion 132 is squeezed and deformed, the light flux entering the photosensitive TFT channel becomes larger, and the TFT closing ability becomes weaker. Even when the first signal line 112 is turned off, the photosensitive TFT still has leakage current. At this time, the leakage current will be sensed by the driving circuit through the detection line 111, so that the touch area is detected, thereby realizing the touch function.

[0086] Optionally, the touch component 10 and the display component 20 can work independently, and the scanning frequency of the touch component 10 and the scanning frequency of the display component 20 can be the same or different, and can be changed according to needs. The touch response time is adjustable, which can reduce power consumption.

[0087] The scan line 25 overlaps with the first signal line 112 , and the data line 26 overlaps with the second signal line 113 .

[0088] Optionally, when multiple photosensitive devices 12 and multiple pixels 21 are arranged in a one-to-one correspondence, multiple first signal lines 112 overlap with multiple scanning lines 25 in the orthographic projection on the third direction Z, and multiple second signal lines 113 overlap with multiple data lines 26 in the orthographic projection on the third direction Z. Figure 4 For the convenience of distinction, the sizes of the first signal line 112 and the scan line 25, and the sizes of the second signal line 113 and the data line 26 are inconsistent. In fact, in the embodiment of the present application, the size of the line in the touch component 10 and the size of the line in the display component 20 can be set to the same size, and the two overlap in the orthographic projection of the third direction Z.

[0089] With such an arrangement, there is no need to set up an additional light shielding layer for the scan line 25 and the data line 26 in the display component 20, thereby reducing costs. In addition, the signal line of the photosensitive device 12 overlaps with the scan line 25 and the data line 26, which can reduce the loss of the aperture ratio of the pixel 21 caused by the touch component 10.

[0090] In the description of the embodiments of the present application, it should be noted that the orientation or positional relationship of terms such as "center", "up", "down", "left", "right", "vertical", "horizontal", "inside" and "outside" are based on the orientation or positional relationship described in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0091] What is disclosed above is only a preferred embodiment of the present application, and it certainly cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiment and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A touch control component, characterized in that: For a touch display device, comprising: A substrate, used for being arranged on a display component of the touch display device; A photosensitive device is disposed on the substrate; A touch panel, arranged on the photosensitive device, wherein the touch panel is a flexible member and is used to deform by receiving touch pressure; When there is no touch pressure, the light is totally reflected in the touch panel, and when there is touch pressure, the light is emitted from the touch panel into the photosensitive device.

2. The touch control assembly according to claim 1, characterized in that: The touch panel comprises a connected plate body and a protrusion, wherein the protrusion protrudes from a surface of the plate body facing the substrate, and the protrusion faces the photosensitive device; When there is no touch pressure, the light incident from the plate body is totally reflected in the protrusion; when there is touch pressure, the light incident from the plate body is incident into the photosensitive device through the protrusion.

3. The touch control assembly according to claim 2, characterized in that: The protrusion is hemispherical, and the outer surface of the protrusion is a spherical surface protruding out of the plate body.

4. The touch control assembly according to claim 2 or 3, characterized in that: The protrusions and the photosensitive devices are both arranged in an array, and the protrusions and the photosensitive devices are arranged in a one-to-one correspondence; the substrate also includes a plurality of detection lines, the photosensitive devices are electrically connected to the detection lines, and the detection lines are used to transmit the signals generated by the photosensitive devices.

5. The touch control assembly according to claim 4, characterized in that: The photosensitive devices in the same column or row are connected in series to the same detection line.

6. The touch control assembly according to claim 1, characterized in that: A transparent conductive layer is disposed on the surface of the touch panel facing away from the substrate.

7. The touch control assembly according to claim 2, characterized in that: The touch control assembly further includes a light source, which is disposed on a side of the touch panel and is used to input light to the touch panel.

8. A touch display device, characterized in that: It comprises a display component and a touch component as claimed in any one of claims 1 to 7, wherein a substrate of the touch component is arranged on the display component.

9. The touch display device according to claim 8, characterized in that: The display component includes a plurality of pixels arranged in an array, the touch component includes a plurality of photosensitive devices arranged in an array, and the plurality of photosensitive devices are arranged corresponding to the plurality of pixels; the display component also includes a scan line and a data line, and the touch component also includes a first signal line and a second signal line, the first signal line and the second signal line are both electrically connected to the photosensitive device; the scan line and the first signal line have the same extension direction, the data line and the second signal line have the same extension direction, and in the direction in which the display component and the touch component are stacked, the scan line overlaps with the first signal line, and the data line overlaps with the second signal line.

10. An electronic device, characterized in that: The invention comprises a housing and the touch display device according to claim 8 or 9, wherein the touch display device is accommodated in the housing.

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