Touch display panel

Abstract

The utility model provides a touch control display panel which comprises a liquid crystal layer, a color filter layer and a touch control layer, the color filter layer comprises a plurality of filter patterns, a black matrix, a flat layer and a transparent substrate, the other surface of the transparent substrate is a rough surface, and the touch control layer is arranged on the rough surface. The surface of the flat layer covers the other surface of the transparent substrate so as to solve the problem that the other surface of the glass substrate is uneven or scratched when a touch sensor or a color filter layer of a known touch display panel is coated, exposed, developed and etched on one surface of the glass substrate; the problems that flaws are generated when a circuit or an element is arranged on the other side of the glass substrate subsequently, the reject ratio is increased, and the display or touch quality is influenced are solved.

Description

Technical Field

[0001] This utility model relates to a touch display panel, and more particularly to a touch display panel that flattens the substrate. Background Technology

[0002] Touch panels can be categorized based on their signal detection methods: electrical signals (including resistive, capacitive, and electromagnetic), optical signals (including infrared and CMOS imaging), and audio signals (including surface acoustic wave, acoustic waveguide, vibration wave diffusion, and pulse wave recognition). Resistive touch panels utilize the pressure of a touch to create contact between upper and lower electrodes, and the controller measures voltage changes to calculate coordinates. Capacitive touch panels detect the coordinates of a touch point by measuring the capacitance changes caused by the electrostatic interaction between arranged transparent electrodes and the human body. Infrared touch panels have infrared emitters and receivers along the X and Y axes; when a finger or stylus touches the panel, it creates a light-blocking effect, allowing the calculation of the touch point's coordinates. Surface acoustic wave touch panels use sound wave transmitters / receivers along the X and Y axes to create a balanced acoustic field in the absence of touch; when a touch occurs, the absorption of sound waves is used for touch coordinate positioning.

[0003] Currently, the design requirements for touch panels of mobile devices (such as smartphones, smartwatches, or tablets) are thinness, small size, ease of hand operation, and multi-touch capability. Projected capacitive (PCAP) touch panels offer high accuracy and greater control over charge time and sensitivity, making them the mainstream in today's market.

[0004] Touch panel stacking methods can be divided into G / F / F (Glass Film Film) dual ITO layer stacking and G / G (Glass Glass) layer stacking. G / G (Glass Glass) layer stacking can be further divided into DITO (single-layer glass double-circuit structure) and SITO (single-layer glass single-circuit structure). Among them, the SITO touch sensor stack has a single-layer ITO (indium tin oxide) layer, which presents an XY pattern on the top surface of the glass substrate. This pattern design includes cross bridges made of conductive and insulating materials, allowing the XY electrodes to cross on the same substrate layer. This design eliminates the second ITO layer in the dual-layer ITO (DITO) touch panel stack and reduces the channel wiring boundary outside the active area.

[0005] SITO's touch sensors undergo processes such as coating, exposure, development, and etching on a glass substrate when an ITO (indium tin oxide) layer is stacked. During these processes, the glass substrate is supported and propelled forward or rotated by rollers or robotic arms.

[0006] However, when the glass substrate is supported and pushed forward or rotated by rollers or robotic arms, scratches will be generated on the unprocessed surface of the glass substrate (that is, the side supported by the rollers or robotic arms). In addition, during the etching process, the unprocessed surface of the glass substrate will also come into contact with the etching solution, which will cause the unprocessed surface of the glass substrate to be etched and produce unevenness. If the unprocessed surface of the glass substrate has scratches or unevenness, it will cause defects when the circuits or components are placed on the unprocessed surface of the glass substrate, thereby increasing the defect rate and affecting the display or touch quality.

[0007] In view of the problems of the prior art, the present invention provides a touch display panel in which a planarization layer is provided on one side of a glass substrate. This solves the problem that when the touch sensor or color filter of the prior art touch display panel is coated, exposed, developed and etched on one side of the glass substrate, the other side of the glass substrate is supported and pushed forward or rotated by rollers or a robotic arm. At the same time, the other side of the glass substrate comes into contact with the etching solution and produces a rough surface. When the other side of the glass substrate produces a rough surface, it will affect the stacking of the color filter or touch sensor on the other side of the glass substrate, thereby increasing the defect rate and affecting the display or touch quality. Utility Model Content

[0008] One objective of this invention is to provide a touch display panel comprising a liquid crystal layer, a color filter layer, and a touch layer. This addresses the problems of conventional touch display panels where, during the deposition, exposure, development, and etching of the touch sensor or color filter layer on one side of a glass substrate, a rough surface is generated on the other side of the glass substrate due to the support and pushing or rotating of the glass substrate by rollers or robotic arms. Additionally, during etching of the touch sensor on one side of the glass substrate, the other side of the glass substrate comes into contact with the etching solution, resulting in a rough surface. The rough surface on the other side of the glass substrate leads to increased defect rates and affects display or touch quality.

[0009] To achieve the aforementioned objectives and effects, this utility model provides a touch display panel comprising: a liquid crystal layer, a color filter layer, and a touch layer. The color filter layer includes a filter pattern, a planarization layer, and a transparent substrate. The touch layer includes a touch unit. The color filter layer is disposed on a top surface of the liquid crystal layer, the filter pattern is disposed on the top surface of the liquid crystal layer, the planarization layer is disposed on a top surface of the color filter layer, the transparent substrate is disposed on a top surface of the planarization layer, and the touch layer is disposed on a top surface of the transparent substrate. A bottom surface of the transparent substrate is a rough surface, and the top surface of the planarization layer covers the bottom surface of the transparent substrate.

[0010] In one embodiment of the present invention, the color filter layer further includes a black matrix disposed on the top surface of the liquid crystal layer, wherein the black matrix and the filter pattern are spaced apart.

[0011] In one embodiment of this utility model, since the bottom surface of the transparent substrate is a rough surface, the top surface of the planarization layer covers the bottom surface of the transparent substrate so that the color filter layer cannot be affected by the rough surface during stacking, thereby achieving the effect of planarization of the color filter layer.

[0012] In one embodiment of the present invention, the touch display panel further includes a backlight module disposed on a bottom surface of the liquid crystal layer, and the backlight module is used to emit light.

[0013] In one embodiment of this utility model, each touch unit includes: an optical matching layer, a first electrode layer, and a second electrode layer. The optical matching layer is disposed on the top surface of the transparent substrate, the first electrode layer is disposed on a top surface of the optical matching layer, and the second electrode layer is disposed on the top surface of the optical matching layer. The second electrode layer and the first electrode layer are alternately arranged. The first electrode layers of each touch unit are electrically connected to each other along a first axis, and the second electrode layers of each touch unit are electrically connected to each other along a second axis.

[0014] In one embodiment of the present invention, the first electrode layer is electrically connected to each other along a first axis by a first connector, the second electrode layer is electrically connected to each other along a second axis by a second connector, and the first connector and the second connector are electrically separated from each other along the second axis.

[0015] In one embodiment of this utility model, the first electrode layer and the second electrode layer are indium tin oxide (ITO) material layers, metal material layers, carbon nanotube material layers, or graphene material layers.

[0016] In one embodiment of the present invention, each touch unit includes an insulating layer disposed between the first electrode layer and the second electrode layer. The insulating layer is used to insulate the first electrode layer from the second electrode layer. The insulating layer is an acrylic material layer, a siloxane material layer, or a polyimide material layer.

[0017] In another embodiment of this utility model, the touch display panel includes: a liquid crystal layer, a color filter layer, and a touch layer. The color filter layer includes a filter pattern, a transparent substrate, and a planarization layer. The touch layer includes a touch unit. The color filter layer is disposed on a top surface of the liquid crystal layer, the filter pattern is disposed on the top surface of the liquid crystal layer, the transparent substrate is disposed on a top surface of the filter pattern, the planarization layer is disposed on a top surface of the transparent substrate, and the touch layer is disposed on a top surface of the planarization layer. The top surface of the transparent substrate is a rough surface, and a bottom surface of the planarization layer covers the top surface of the transparent substrate.

[0018] In another embodiment of the present invention, the touch display panel further includes a backlight module disposed on a bottom surface of the liquid crystal layer, and the backlight module is used to emit light.

[0019] In one embodiment of the present invention, the color filter layer further includes a black matrix disposed on the top surface of the liquid crystal layer, wherein the black matrix and the filter pattern are spaced apart.

[0020] In another embodiment of this utility model, since the top surface of the transparent substrate is a rough surface, the bottom surface of the planarization layer covers the top surface of the transparent substrate so that the touch layer cannot be affected by the rough surface during stacking, thereby achieving the effect of planarization of the touch layer.

[0021] In another embodiment of the present invention, each touch unit includes: an optical matching layer, a first electrode layer and a second electrode layer. The optical matching layer is disposed on the top surface of the planarization layer, the first electrode layer is disposed on a top surface of the optical matching layer, and the second electrode layer is disposed on the top surface of the optical matching layer. The second electrode layer and the first electrode layer are alternately arranged. The first electrode layers of each touch unit are electrically connected to each other along a first axis, and the second electrode layers of each touch unit are electrically connected to each other along a second axis.

[0022] In another embodiment of the present invention, the first electrode layer is electrically connected to each other along the first axis by a first connector, the second electrode layer is electrically connected to each other along the second axis by a second connector, and the first connector and the second connector are electrically separated from each other along the second axis.

[0023] In another embodiment of this utility model, the first electrode layer and the second electrode layer are indium tin oxide (ITO) material layers, metal material layers, carbon nanotube material layers, or graphene material layers.

[0024] In one embodiment of the present invention, each touch unit includes an insulating layer disposed between the first electrode layer and the second electrode layer. The insulating layer is used to insulate the first electrode layer from the second electrode layer. The insulating layer is an acrylic material layer, a siloxane material layer, or a polyimide material layer. Attached Figure Description

[0025] Figure 1A This is a schematic diagram of the structure of one embodiment of the present utility model;

[0026] Figures 1B-1 to 1B-5 This is a schematic diagram of the manufacturing process of one embodiment of the present utility model;

[0027] Figure 1C This is a schematic diagram of a black matrix according to an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of a backlight module according to an embodiment of the present invention;

[0029] Figure 3A This is a schematic diagram of the touch layer according to an embodiment of the present invention;

[0030] Figure 3B It is Figure 3A A magnified view of a portion of the image;

[0031] Figure 3C It is Figure 3B Sectional view A-A';

[0032] Figure 3D It is Figure 3B Sectional view of B-B';

[0033] Figure 4A This is a schematic diagram of another embodiment of the present utility model;

[0034] Figures 4B-1 to 4B-5 This is a schematic diagram of the manufacturing process of another embodiment of the present invention;

[0035] Figure 4C This is a schematic diagram of a black matrix according to another embodiment of the present invention;

[0036] Figure 5 This is a schematic diagram of a backlight module according to another embodiment of the present invention;

[0037] Figure 6A This is a schematic diagram of the touch layer according to another embodiment of the present invention;

[0038] Figure 6B It is Figure 6A A magnified view of a portion of the image;

[0039] Figure 6C It is Figure 6B Sectional view A-A'; and

[0040] Figure 6D It is Figure 6B The B-B' sectional view.

[0041] [Figure Number Reference Guide]

[0042] 1, 2: Touch display panel

[0043] 10, 100: Liquid crystal layer

[0044] 20, 200: Color filter layer

[0045] 22, 220: Filter patterns

[0046] 24, 240: Black Matrix

[0047] 26, 280: Flattening layer

[0048] 28, 260: Transparent substrate

[0049] 30, 300: Touch layer

[0050] 31, 320: Touch unit

[0051] 312, 322: Optical matching layer

[0052] 314, 324: First electrode layer

[0053] 3141, 3241: First connecting parts

[0054] 316, 326: Second electrode layer

[0055] 3161, 3261: Second connector

[0056] 318, 328: Insulation layer

[0057] 40, 400: Backlight module

[0058] 42, 420: Glass layer

[0059] 44, 440: Polarizing layer

[0060] 46, 460: Emissive layer

[0061] L, L': Light rays

[0062] Y, Y': First axial direction

[0063] X, X': Second axis

[0064] MV, MV': Enlarged view of a section

[0065] S10~S40: Steps

[0066] S100~S400: Steps Detailed Implementation

[0067] To provide a better understanding of the structural features and effects achieved by this utility model, preferred embodiments and detailed descriptions are provided below:

[0068] The accompanying drawings illustrate layer structure diagrams according to embodiments of this application. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0069] Obviously, the described embodiments are only some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without any innovative effort are within the scope of protection of this application.

[0070] In the description of this application, it should be noted that the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0071] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0072] When the touch sensor or color filter of a conventional touch display panel is coated, exposed, developed, and etched on one side of a glass substrate, the other side of the glass substrate is supported and pushed forward or rotated by rollers or a robotic arm. This causes scratches on the other side of the glass substrate, forming a rough surface. In addition, during etching, the other side of the glass substrate also comes into contact with the etching solution, resulting in surface unevenness and forming a rough surface. However, when the other side of the glass substrate has a rough surface, it will cause defects when the circuits or components are subsequently placed on the non-processed surface of the glass substrate, thereby increasing the defect rate and affecting the display or touch quality.

[0073] In view of the problems of the prior art, the present invention provides a touch display panel in which a planarization layer is provided on one side of a transparent substrate. This solves the problem that when the touch sensor or color filter of the prior art is coated, exposed, developed and etched on one side of the transparent substrate, the other side of the transparent substrate is scratched and formed with a rough surface due to being supported and pushed forward or rotated by rollers or robotic arms. At the same time, the other side of the transparent substrate also comes into contact with the etching solution during etching, resulting in a rough surface. When the other side of the transparent substrate is rough, it will cause an increase in the defect rate and affect the display or touch quality.

[0074] Please see Figure 1A The figure shows a schematic diagram of the structure of one embodiment of the present invention. As shown in the figure, this embodiment is the first embodiment, and this embodiment is a touch display panel. The touch display panel 1 includes: a liquid crystal layer 10, a color filter layer 20 and a touch layer 30. The color filter layer 20 includes: a plurality of filter patterns 22, a planarization layer 26 and a transparent substrate 28. The touch layer 30 includes a plurality of touch units 31.

[0075] Continuing from the above, as shown in the figure, in the first embodiment, the color filter layer 20 is disposed on a top surface of the liquid crystal layer 10, the filter patterns 22 are disposed on the top surface of the liquid crystal layer 10, the planarization layer 26 is disposed on a top surface of the filter patterns 22, the transparent substrate 28 is disposed on a top surface of the planarization layer 26, and the touch layer 30 is disposed on a top surface of the transparent substrate 28, wherein a bottom surface of the transparent substrate 28 is a rough surface, and the top surface of the planarization layer 26 covers the bottom surface of the transparent substrate 28.

[0076] Continuing from the above, in the first embodiment, the planarization layer 26 is an organic material, such as acrylic.

[0077] Continuing from the above, in the first embodiment, the thickness of the planarization layer 26 is... to

[0078] Continuing from the above, please refer to Figure 1B-1 The figure shows a manufacturing process diagram of one embodiment of the present invention. As shown in the figure, in the first embodiment, manufacturing the touch display panel 1 includes at least the following steps:

[0079] Step S10: Deposit the touch layer 30 onto a top surface of the transparent substrate 28;

[0080] Step S20: The planarization layer 26 is disposed on a bottom surface of the transparent substrate 28;

[0081] Step S30: Deposit the filter patterns 22 onto a bottom surface of the planarization layer 26; and

[0082] Step S40: Set the liquid crystal layer 10 on one bottom surface of the filter patterns 22.

[0083] Continuing from the above, please refer to Figure 1B-2 The figure shows a manufacturing process diagram of an embodiment of the present invention. As shown, in step S10 of the first embodiment, the touch layer 30 is stacked on the top surface of the transparent substrate 28 by means of coating, exposure, development or etching. During stacking, the bottom surface of the transparent substrate 28 is supported by rollers or a robotic arm and pushed forward or rotated. However, when the bottom surface of the transparent substrate 28 is supported by rollers or a robotic arm and pushed forward or rotated, scratches will be generated on the bottom surface of the transparent substrate 28, thereby forming a rough surface on the bottom surface of the transparent substrate 28.

[0084] Continuing from the above, as shown in the figure, in step S10 of the first embodiment, when the touch layer 30 is coated, exposed, developed or etched, the bottom surface of the transparent substrate 28 will also come into contact with the etching solution, resulting in surface unevenness, thereby forming a rough surface on the bottom surface of the transparent substrate 28.

[0085] Continuing from the above, please refer to Figure 1B-3 The figure shows a manufacturing process diagram of an embodiment of the present invention. As shown in the figure, in step S20 of the first embodiment, after the touch layer 30 is stacked on the top surface of the transparent substrate 28, it is flipped over and the planarization layer 26 is disposed on the bottom surface of the transparent substrate 28, and the top surface of the planarization layer 26 covers the bottom surface of the transparent substrate 28.

[0086] Continuing from the above, please refer to Figure 1B-4 The figure shows a manufacturing process diagram of an embodiment of the present invention. As shown in the figure, in step S30 of the first embodiment, the filter patterns 22 are disposed on the bottom surface of the flat layer 26.

[0087] Continuing from the above, please refer to Figure 1B-5 The figure shows a manufacturing process diagram of an embodiment of the present invention. As shown in the figure, in step S40 of the first embodiment, the liquid crystal layer 10 is disposed on the bottom surface of the filter patterns 22.

[0088] Continuing from the above, if these filter patterns 22 are directly stacked on the bottom surface of the transparent substrate 28 with a rough surface, it will cause problems affecting the display.

[0089] Continuing from the above, in steps S20 and S30 of the first embodiment, the planarization layer 26 is provided on the bottom surface of the transparent substrate 28 to cover the bottom surface (i.e., the rough surface) of the transparent substrate 28 by means of the top surface of the planarization layer 26. This further enables the filter patterns 22 to be planarized when they are provided on the bottom surface of the planarization layer 26, so that uneven stacking will not occur due to the bottom surface (i.e., the rough surface) of the transparent substrate 28, thereby preventing optical variations in the filter patterns 22.

[0090] Continuing from the above, please refer to Figure 1C The figure shows a schematic diagram of a black matrix in one embodiment of the present invention. As shown in the figure, in the first embodiment, the color filter layer 20 includes a black matrix 24, which is disposed on the top surface of the liquid crystal layer 10. The black matrix 24 is disposed at intervals with the filter patterns 22.

[0091] Continuing from the above, please refer to Figure 2The figure shows a schematic diagram of a backlight module according to an embodiment of the present invention. As shown in the figure, in the first embodiment, the touch display panel 1 further includes a backlight module 40. The backlight module 40 is disposed on a bottom surface of the liquid crystal layer 10. The backlight module 40 is used to emit a light L, which is white light. The backlight module 40 includes a glass layer 42, a polarizing layer 44, and a light-emitting layer 46. The glass layer 42 is disposed on the bottom surface of the liquid crystal layer 10, the polarizing layer 44 is disposed on a bottom surface of the glass layer 42, and the light-emitting layer 46 is disposed on a bottom surface of the polarizing layer 44. The light-emitting layer 46 is used to emit the light L, and the polarizing layer 44 is used to make the light L emit in a fixed direction.

[0092] Continuing from the above, as shown in the figure, in the first embodiment, after the backlight module 40 emits the light L and penetrates to the liquid crystal layer 10, the liquid crystal layer 10 controls the penetration degree of the light L. After the light L passes through the liquid crystal layer 10, the color filter layer 20 changes the color of the light L, and the color-changed light L penetrates to the touch layer 30.

[0093] Continuing from the above, please refer to Figures 3A to 3D , Figure 3A This is a schematic diagram of the touch layer according to an embodiment of the present invention. Figure 3B for Figure 3A A magnified view of a portion of the image. Figure 3C for Figure 3B Sectional view A-A' Figure 3D for Figure 3B As shown in the B-B' cross-sectional view, in the first embodiment, the touch layer 30 includes a plurality of touch units 31, and each of the touch units 31 includes: an optical matching layer 312, a first electrode layer 314, and a second electrode layer 316. The optical matching layer 312 is disposed on the top surface of the transparent substrate 28, the first electrode layer 314 is disposed on a top surface of the optical matching layer 312, and the second electrode layer 316 is disposed on the top surface of the optical matching layer 312. The second electrode layer 316 and the first electrode layer 314 are alternately arranged, and the first electrode layers 314 of each of the touch units 31 are electrically connected to each other along a first axis Y, and the second electrode layers 316 of each of the touch units 31 are electrically connected to each other along a second axis X.

[0094] Continuing from the above, as shown in the figure, in the first embodiment, the first electrode layer 314 is electrically connected to each other in the first axis Y by a first connector 3141, the second electrode layer 316 is electrically connected to each other in the second axis X by a second connector 3161, and the first connector 3141 and the second connector 3161 are electrically separated from each other in the first axis Y or the second axis X.

[0095] Continuing from the above, in the first embodiment, the first electrode layer 314 and the second electrode layer 316 are indium tin oxide (ITO) material layers, metal material layers, carbon nanotube material layers, or graphene material layers.

[0096] Continuing from the above, as shown in the figure, in the first embodiment, each of the touch units 31 includes an insulating layer 318 disposed between the first electrode layer 314 and the second electrode layer 316. The insulating layer 318 is an acrylic material layer, a siloxane material layer or a polyimide material layer.

[0097] Please see Figure 4A The figure shows a schematic diagram of another embodiment of the present invention. As shown in the figure, this embodiment is the second embodiment, which is a touch display panel. The touch display panel 2 includes: a liquid crystal layer 100, a color filter layer 200, and a touch layer 300. The color filter layer 200 includes: a plurality of filter patterns 220, a transparent substrate 260, and a planarization layer 280. The touch layer 300 includes a plurality of touch units 320.

[0098] Continuing from the above, as shown in the figure, in the second embodiment, the color filter layer 200 is disposed on a top surface of the liquid crystal layer 100, the filter patterns 220 are disposed on the top surface of the liquid crystal layer 100, the transparent substrate 260 is disposed on a top surface of the filter patterns 220, the planarization layer 280 is disposed on a top surface of the transparent substrate 260, and the touch layer 300 is disposed on a top surface of the planarization layer 280, wherein the top surface of the transparent substrate 260 is a rough surface, and the bottom surface of the planarization layer 280 covers the top surface of the transparent substrate 260.

[0099] Continuing from the above, in the second embodiment, the planarization layer 280 is an organic material, such as acrylic.

[0100] Continuing from the above, in the second embodiment, the thickness of the planarization layer 280 is... to

[0101] Continuing from the above, please refer to Figure 4B-1 The figure shows a manufacturing process diagram of another embodiment of the present invention. As shown in the figure, in the second embodiment, manufacturing the touch display panel 2 includes at least the following steps:

[0102] Step S100: The filter patterns 220 are formed on a bottom surface of the transparent substrate 260;

[0103] Step S200: The liquid crystal layer 100 is disposed on one bottom surface of the filter patterns 220;

[0104] Step S300: The planarization layer 280 is disposed on a top surface of the transparent substrate 260; and

[0105] Step S400: The touch layer 300 is disposed on a top surface of the flat layer 280.

[0106] Continuing from the above, please refer to Figure 4B-2 The figure shows a manufacturing process diagram of another embodiment of the present invention. As shown in the figure, in step S100 of the second embodiment, the filter patterns 220 are stacked on the bottom surface of the transparent substrate 260 by means of coating, and the top surface of the transparent substrate 260 is supported by rollers or a robotic arm and pushed forward or rotated during stacking.

[0107] Continuing from the above, please refer to Figure 4B-3 The figure shows a manufacturing process diagram of another embodiment of the present invention. In step S200 of the second embodiment, the liquid crystal layer 100 is stacked on the bottom surface of the filter patterns 220 by means of a coating. During stacking, the top surface of the transparent substrate 260 is supported by rollers or a robotic arm and pushed forward or rotated.

[0108] Continuing from the above, in steps S100 and S200 of the second embodiment, when the top surface of the transparent substrate 260 is supported by rollers or a robotic arm and pushed forward or rotated, scratches will be generated on the top surface of the transparent substrate 260 to form a rough surface.

[0109] Continuing from the above, please refer to Figure 4B-4 The figure shows a manufacturing process diagram of another embodiment of the present invention. As shown in the figure, in step S300 of the second embodiment, after the liquid crystal layer 100 and the filter patterns 220 are stacked on the bottom surface of the transparent substrate 260, the substrate is flipped over and the planarization layer 280 is disposed on the top surface of the transparent substrate 260. The bottom surface of the planarization layer 280 covers the top surface of the transparent substrate 260.

[0110] Continuing from the above, please refer to Figure 4B-5 The figure shows a manufacturing process diagram of another embodiment of the present invention. As shown in the figure, in step S400 of the second embodiment, after the planarization layer 280 is disposed on the top surface of the transparent substrate 260, the touch layer 300 is disposed on the top surface of the planarization layer 280.

[0111] Continuing from the above, if the touch layer 300 is directly stacked on the top surface of the transparent substrate 260 with a rough surface, it will cause problems affecting touch control.

[0112] Continuing from the above, in steps S300 and S400 of the second embodiment, the planarization layer 280 is provided on the top surface of the transparent substrate 260 to cover the top surface (i.e., the rough surface) of the transparent substrate 260 by means of the bottom surface of the planarization layer 280. This further enables the touch layer 300 to be planarized when it is disposed on the top surface of the planarization layer 280. In other words, the touch layer 300 will not be unevenly stacked due to the rough surface of the transparent substrate 260, thereby preventing problems that affect touch control.

[0113] Continuing from the above, please refer to Figure 4C The figure shows a schematic diagram of a black matrix in another embodiment of the present invention. As shown in the figure, in the second embodiment, the color filter layer 200 includes a black matrix 240, which is disposed on the top surface of the liquid crystal layer 100. The black matrix 240 is disposed at intervals with the filter patterns 220.

[0114] Continuing from the above, please refer to Figure 5 The figure shows a schematic diagram of a backlight module according to another embodiment of the present invention. As shown in the figure, in the second embodiment, the touch display panel 2 further includes a backlight module 400. The backlight module 400 is disposed on a bottom surface of the liquid crystal layer 100. The backlight module 400 is used to emit a light L', which is white light. The backlight module 400 includes a glass layer 420, a polarizing layer 440, and a light-emitting layer 460. The glass layer 420 is disposed on the bottom surface of the liquid crystal layer 100. The polarizing layer 440 is disposed on a bottom surface of the glass layer 420. The light-emitting layer 460 is disposed on a bottom surface of the polarizing layer 440. The light-emitting layer 460 is used to emit the light L', and the polarizing layer 440 is used to make the light L' emit in a fixed direction.

[0115] Continuing from the above, as shown in the figure, in the first embodiment, after the backlight module 400 emits the light L' and penetrates into the liquid crystal layer 100, the liquid crystal layer 100 controls the penetration degree of the light L'. After the light L' passes through the liquid crystal layer 100, the color filter layer 200 changes the color of the light L', and the color-changed light L' penetrates into the touch layer 300.

[0116] Continuing from the above, please refer to Figures 6A to 6D , Figure 6A This is a schematic diagram of the touch layer according to another embodiment of the present invention. Figure 6B for Figure 6A A magnified view of a portion of the image. Figure 6C for Figure 6B Sectional view A-A' Figure 6D for Figure 6BAs shown in the B-B' cross-sectional view, in the second embodiment, the touch layer 300 includes a plurality of touch units 320, and each of the touch units 320 includes: an optical matching layer 322, a first electrode layer 324, and a second electrode layer 326. The optical matching layer 322 is disposed on the top surface of the planarization layer 280, the first electrode layer 324 is disposed on a top surface of the optical matching layer 322, and the second electrode layer 326 is disposed on the top surface of the optical matching layer 322. The second electrode layer 326 and the first electrode layer 324 are alternately arranged, and the first electrode layers 324 of each of the touch units 320 are electrically connected to each other along a first axis Y', and the second electrode layers 326 of each of the touch units 320 are electrically connected to each other along a second axis X'.

[0117] Continuing from the above, as shown in the figure, in the first embodiment, the first electrode layer 324 is electrically connected to each other in the first axis Y' by a first connector 3241, the second electrode layer 326 is electrically connected to each other in the second axis X' by a second connector 3261, and the first connector 3241 and the second connector 3261 are electrically separated from each other in the first axis Y' or the second axis X'.

[0118] Continuing from the above, in the first embodiment, the first electrode layer 324 and the second electrode layer 326 are indium tin oxide (ITO) material layers, metal material layers, carbon nanotube material layers, or graphene material layers.

[0119] Continuing from the above, as shown in the figure, in the first embodiment, each of the touch units 320 includes an insulating layer 328 disposed between the first electrode layer 324 and the second electrode layer 326. The insulating layer 328 is an acrylic material layer, a siloxane material layer or a polyimide material layer.

[0120] In summary, this utility model provides a touch display panel in which a color filter layer is disposed on a top surface of a liquid crystal layer, a filter pattern is disposed on the top surface of the liquid crystal layer, a black matrix is ​​disposed on the top surface of the liquid crystal layer, a planarization layer is disposed on a top surface of the filter pattern or the black matrix, a transparent substrate is disposed on a top surface of the planarization layer, and a touch layer is disposed on a top surface of the transparent substrate; alternatively, the color filter layer is disposed on a top surface of the liquid crystal layer, the filter pattern is disposed on the top surface of the liquid crystal layer, the black matrix is ​​disposed on the top surface of the liquid crystal layer, the transparent substrate is disposed on one side of the filter pattern or the black matrix, and the planarization layer is disposed on the transparent substrate. The touch layer is disposed on the top surface of the planarization layer to solve the problem that when the touch sensor or color filter of the conventional touch display panel is coated, exposed, developed or etched on the top surface of the transparent substrate, scratches are generated on the bottom surface of the transparent substrate when it is supported and pushed forward or rotated by rollers or robotic arms. At the same time, the bottom surface of the transparent substrate will also come into contact with the etching solution during etching, resulting in a rough surface. When the bottom surface of the transparent substrate is rough, it will cause an increase in the defect rate when the circuit or component is subsequently placed on the bottom surface of the transparent substrate, and affect the display or touch quality.

[0121] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent variations and modifications made in accordance with the shape, structure, features and spirit described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A touch display panel, characterized in that, It includes: One liquid crystal layer; A color filter layer is disposed on a top surface of the liquid crystal layer, the color filter layer comprising: Multiple filter patterns are disposed on the top surface of the liquid crystal layer; A flat layer disposed on a top surface of the filter patterns; and A transparent substrate disposed on a top surface of the planarization layer; and A touch layer is disposed on a top surface of the transparent substrate, and the touch layer includes a plurality of touch units; In this embodiment, one bottom surface of the transparent substrate is roughened, and the top surface of the planarization layer covers the bottom surface of the transparent substrate.

2. The touch display panel as described in claim 1, characterized in that, The color filter layer includes a black matrix disposed on the top surface of the liquid crystal layer, and the black matrix is ​​spaced apart from the filter patterns.

3. The touch display panel as described in claim 1, characterized in that, It further includes a backlight module disposed on a bottom surface of the liquid crystal layer. The backlight module is used to emit light and includes: A glass layer is disposed on the bottom surface of the liquid crystal layer; A polarizing layer is disposed on a bottom surface of the glass layer; and A light-emitting layer is disposed on a bottom surface of the polarizing layer, and the light-emitting layer is used to emit the light.

4. The touch display panel as described in claim 1, characterized in that, Each of these touch units contains: An optical matching layer is disposed on the top surface of the transparent substrate; A first electrode layer is disposed on a top surface of the optical matching layer; and A second electrode layer is disposed on the top surface of the optical matching layer, and the second electrode layer is alternately disposed with the first electrode layer; The first electrode layers of each of the touch units are electrically connected to each other along a first axis, and the second electrode layers of each of the touch units are electrically connected to each other along a second axis.

5. The touch display panel as described in claim 4, characterized in that, The first electrode layer is electrically connected to each other along the first axis by a first connector, the second electrode layer is electrically connected to each other along the second axis by a second connector, and the first connector and the second connector are electrically separated from each other along the first axis or the second axis.

6. The touch display panel as described in claim 4, characterized in that, Each of these touch units includes an insulating layer disposed between the first electrode layer and the second electrode layer.

7. A touch display panel, characterized in that, It includes: One liquid crystal layer; A color filter layer is disposed on a top surface of the liquid crystal layer, the color filter layer comprising: Multiple filter patterns are disposed on the top surface of the liquid crystal layer; A transparent substrate disposed on a top surface of the filter patterns; and A planarization layer is disposed on a top surface of the transparent substrate; and A touch layer is disposed on a top surface of the flat layer, and the touch layer includes multiple touch units; The top surface of the transparent substrate is roughened, and the bottom surface of the planarization layer covers the top surface of the transparent substrate.

8. The touch display panel as described in claim 7, characterized in that, The color filter layer includes a black matrix disposed on the top surface of the liquid crystal layer, and the black matrix is ​​spaced apart from the filter patterns.

9. The touch display panel as described in claim 7, characterized in that, It further includes a backlight module disposed on a bottom surface of the liquid crystal layer. The backlight module is used to emit light and includes: A glass layer is disposed on the bottom surface of the liquid crystal layer; A polarizing layer is disposed on a bottom surface of the glass layer; and A light-emitting layer is disposed on a bottom surface of the polarizing layer, and the light-emitting layer is used to emit the light.

10. The touch display panel as described in claim 7, characterized in that, Each of these touch units contains: An optical matching layer is disposed on the top surface of the planar layer; A first electrode layer is disposed on a top surface of the optical matching layer; and A second electrode layer is disposed on the top surface of the optical matching layer, and the second electrode layer is alternately disposed with the first electrode layer; The first electrode layers of each of the touch units are electrically connected to each other along a first axis, and the second electrode layers of each of the touch units are electrically connected to each other along a second axis.

11. The touch display panel as described in claim 10, characterized in that, The first electrode layer is electrically connected to each other along the first axis by a first connector, the second electrode layer is electrically connected to each other along the second axis by a second connector, and the first connector and the second connector are electrically separated from each other along the first axis or the second axis.

12. The touch display panel as described in claim 10, characterized in that, Each of these touch units includes an insulating layer disposed between the first electrode layer and the second electrode layer.

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