CN107436701B - Touch display panel and touch display device - Google Patents
Touch display panel and touch display device Download PDFInfo
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- CN107436701B CN107436701B CN201610370823.2A CN201610370823A CN107436701B CN 107436701 B CN107436701 B CN 107436701B CN 201610370823 A CN201610370823 A CN 201610370823A CN 107436701 B CN107436701 B CN 107436701B
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- 239000004973 liquid crystal related substance Substances 0.000 description 2
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- -1 polyethylene terephthalate Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- General Physics & Mathematics (AREA)
- Position Input By Displaying (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a touch display panel, which comprises a color photoresist layer, a touch electrode layer and a glass substrate, wherein the glass substrate is provided with a first surface and a second surface opposite to the first surface, the color photoresist layer is arranged on the first surface of the glass substrate, the touch electrode layer is arranged on the second surface of the glass substrate, the pattern of the color photoresist layer is composed of a plurality of pattern units, the pattern of the touch electrode layer is also composed of a plurality of pattern units, the width of the pattern unit of the touch electrode layer is smaller than any integer multiple of the width of the pattern unit of the color photoresist layer, and the width of the pattern unit of the touch electrode layer and the width of the pattern unit of the color photoresist layer on a retina are in integral multiple relation. The invention further provides a touch display device.
Description
Technical Field
The present invention relates to a touch display panel, and more particularly, to a touch display panel capable of eliminating or reducing moire fringes, and a touch display device.
Background
Moire is the visual result of interference between two lines or objects at a constant angle and frequency, and when the human eye cannot distinguish the two lines or objects, only the interference pattern is seen, and the pattern in this optical phenomenon is moire. The existing capacitive touch display device utilizes the principle of mutual capacitance to realize the detection of the touch position of a finger; in general, a touch structure is disposed in a touch display device. Specifically, the touch structure generally includes a plurality of strip-shaped transparent touch driving electrodes and a plurality of strip-shaped transparent touch sensing electrodes, wherein the strip-shaped electrodes of the touch structure easily interfere with regular patterns in a photoresist structure of the touch display device to cause moire patterns, thereby affecting the display quality of the touch display device.
Common causes of moire fringes are: two sets of less spaced periodic lines overlap in parallel or two sets of periodic lines overlap at a smaller angle. Moir due to the above two causes can be eliminated or reduced by increasing the overlap angle of the two sets of periodic lines or by using irregular periodic lines. In the display device of the prior art, the moire is more conspicuous depending on the thickness of the glass substrate and the viewing distance, especially when the pitches of two sets of lines are equal or the period of one set of lines is an integral multiple of the period of the other set of lines.
Referring to fig. 1, fig. 1 is a schematic view of a touch display device 10 in the prior art. The touch display device 10 includes a touch display panel 11 and a backlight module 12 disposed below the touch display panel 11 for providing a light source for the touch display panel 11. The touch display panel 11 is an in-cell touch display panel 11.
The touch display panel 11 sequentially includes an upper polarizer 111, a glass substrate 112, a color photoresist layer 113, a liquid crystal layer 114, a TFT layer 115, and a lower polarizer 116 from top to bottom. The color photoresist layer 113 includes a plurality of color photoresists 1131 arranged along a first direction and a black matrix 1132 disposed between the color photoresists 1131, and the glass substrate 112 has a first surface 112a and a second surface 112b opposite to the first surface 112 a. The color photoresist 1131 and the black matrix 1132 are disposed at an interval on the first surface 112a of the glass substrate 112. The color resists 1131 are red (R), green (G) and blue (B) color resists. Each of the color resists 1131 has a regular shape, an equal size and a same pitch, and visually exhibits a pattern including a set of periodic lines with a uniform pitch.
The touch display panel 11 further includes a touch electrode layer 117 for touch control, the touch electrode layer 117 includes a plurality of touch sensing electrodes 1171 arranged at intervals along a first direction, and a first distance 1172 is arranged between one touch sensing electrode 1171 and another touch sensing electrode 1171. The touch sensing electrodes 1171 are disposed between the color filter layer 113 and the upper polarizer 111, and specifically, the touch sensing electrodes 1171 arranged along the first direction are attached to the second surface 112b of the glass substrate 112 through an OCA adhesive layer. The touch sensing electrode 1171 is a transparent electrode, and may be an Indium Tin Oxide (ITO) electrode or a nano silver electrode. The touch sensing electrodes 1171 arranged along the first direction are regular in shape, equal in size and same in spacing, and visually present a pattern including a group of periodic lines with uniform spacing.
It is understood that the touch display panel 11 may further include a plurality of touch sensing electrodes 1171 arranged along a second direction, and the first direction and the second direction intersect. The finger touch capacitance can be sensed by the touch sensing electrodes 1117 arranged along the first direction and the touch sensing electrodes 1171 arranged along the second direction. Meanwhile, the touch display panel 11 further includes other structures for implementing the touch display function, and the description is omitted since the invention is irrelevant.
As shown in fig. 1 and fig. 2, the touch sensing electrodes 1171 are disposed in one-to-one correspondence with the color resists 1131, and the distance between the touch sensing electrodes 1171 is equal to the distance between the color resists 1131, that is, the size of the black matrix 1132, and actually, the patterns formed by the touch electrode layer 117 and the color resist layer 113 are the same. However, due to the principle of near-far and small-far and the difference of the viewing angle and distance, the pattern of the color photoresist layer 113 located below the color photoresist layer is smaller than the pattern of the touch electrode layer 117, and the lamination of the patterns of the touch electrode layer 117 and the color photoresist layer 113 with different sizes on the retina of human eyes may generate serious moire fringes, which affects the visual effect.
Referring to fig. 1, the backlight module 12 includes a light source 121 and a Brightness Enhancement Film 122 (BEF), it can be understood that the backlight module 12 further includes a back plate, a reflective sheet, a diffusion sheet, and the like, and the backlight module may further include a light guide plate and other structures according to the type of the backlight module. Other structural domains of the backlight module are irrelevant to the inventive concept of the invention, and therefore, the description is omitted. The brightness enhancement film 122 is disposed between the light source 121 and the lower polarizer 116, and is configured to collect light emitted by the light source 121 toward the touch display panel 11, so as to improve brightness of the touch display panel 11, and recycle light that is not utilized outside a viewing angle by reflection of the light, so as to reduce loss of the light, and further achieve effects of energy saving and environmental protection. The brightness enhancement film 122 is a transparent resin film, such as a polyethylene terephthalate (PET) film, and a plurality of microstructures 1221, such as sawtooth or wave-shaped prism structures, are disposed on a surface of the film facing the display module at intervals along a first direction, and a second interval 1222 is disposed between one microstructure 1221 and another adjacent microstructure 1221. The microstructures of the brightness enhancement film 122 are regular in shape, equal in size, and the same in the second pitch 1222 can also visually exhibit a pattern comprising a set of uniformly spaced periodic lines.
As shown in fig. 1 and 3, the microstructures 1221 of the brightness enhancement film 122 are disposed in one-to-one correspondence with the black matrices 1132, and a distance from a top end of one microstructure 1221 to a top end of an adjacent microstructure 1221 is equal to a distance from one black matrix 1132 to an adjacent black matrix 1132. In fact, the brightness enhancement film 122 and the color photoresist 1131 are patterned in the same manner. However, due to the principle of the near-far distance and the difference of the viewing angle and distance, the pattern of the brightness enhancement film 122 located below the touch electrode layer 117 is smaller than the pattern formed by the touch electrode layer 117, and the overlapping of the patterns of the brightness enhancement film 122 and the touch electrode layer 117 with different sizes on the retina of human eyes can generate serious moire fringes, which affects the visual effect.
Disclosure of Invention
In view of the above, it is desirable to provide a touch display panel and a touch display device capable of reducing or eliminating moire fringes.
A touch display panel comprises a color photoresist layer, a touch electrode layer and a glass substrate, wherein the glass substrate is provided with a first surface and a second surface opposite to the first surface, the color photoresist layer is arranged on the first surface of the glass substrate, the touch electrode layer is arranged on the second surface of the glass substrate, the pattern of the color photoresist layer is composed of a plurality of pattern units, the pattern of the touch electrode layer is also composed of a plurality of pattern units, the width of the pattern units of the touch electrode layer is smaller than any integer multiple of the width of the pattern units of the color photoresist layer, and the widths of the pattern units of the touch electrode layer and the pattern units of the color photoresist layer on a retina are in integral multiple relation.
Further, the image of the color photoresist layer presented on the retina partially or completely blocks the image of the touch electrode layer or the image of the touch electrode layer partially or completely blocks the image of the color photoresist layer.
Further, under the condition that the widths of the pattern units of the plurality of color photoresist layers are the same and are a fixed value, the width of the pattern unit of the touch electrode layer farther away from the human eye is larger than the width of the pattern unit of the touch electrode layer closer to the human eye.
Further, the width of the pattern unit of the touch electrode layer is smaller than that of the pattern unit of the color photoresist layer, and the ratio of the width between the pattern unit of the touch electrode layer and the image of the pattern unit of the color photoresist layer on the retina is 1: 1.
Furthermore, the touch electrode layer includes a plurality of touch sensing electrodes arranged at intervals, the pattern of the touch electrode layer is composed of a plurality of periodic pattern units, each pattern unit is composed of a bright line and a dark line, and the width of each pattern unit is the sum of the width of one touch sensing electrode and the distance from the touch sensing electrode to an adjacent touch sensing electrode.
Furthermore, the color photoresist layer comprises a plurality of color photoresists arranged at intervals, the pattern of the color photoresist layer also comprises a plurality of periodic pattern units, each pattern unit comprises a bright line and a dark line, and the width of each pattern unit is the sum of the width of one color photoresist and the distance from the color photoresist to the adjacent color photoresist.
A display device comprises a touch display panel and a backlight module, wherein the touch display panel comprises a color photoresist layer, a touch electrode layer and a glass substrate, the glass substrate is provided with a first surface and a second surface opposite to the first surface, the color photoresist layer is arranged on the first surface of the glass substrate, the touch electrode layer is arranged on the second surface of the glass substrate, the pattern of the color photoresist layer is composed of a plurality of pattern units, the pattern of the touch electrode layer is also composed of a plurality of pattern units, the width of the pattern unit of the touch electrode layer is smaller than any integer multiple of the width of the pattern unit of the color photoresist layer, and the widths of the pattern unit of the touch electrode layer and the pattern unit of the color photoresist layer on a retina are in integral multiple relation.
Further, the image of the color photoresist layer presented on the retina partially or completely blocks the image of the touch electrode layer or the image of the touch electrode layer partially or completely blocks the image of the color photoresist layer.
Further, under the condition that the widths of the pattern units of the plurality of color photoresist layers are the same and are a fixed value, the width of the pattern unit of the touch electrode layer farther away from the human eye is larger than the width of the pattern unit of the touch electrode layer closer to the human eye.
Further, the width of the pattern unit of the touch electrode layer is smaller than that of the pattern unit of the color photoresist layer, and the ratio of the width between the pattern unit of the touch electrode layer and the image of the pattern unit of the color photoresist layer on the retina is 1: 1.
Furthermore, the touch electrode layer includes a plurality of touch sensing electrodes arranged at intervals, the pattern of the touch electrode layer is composed of a plurality of periodic pattern units, each pattern unit is composed of a bright line and a dark line, and the width of each pattern unit is the sum of the width of one touch sensing electrode and the distance from the touch sensing electrode to an adjacent touch sensing electrode.
Furthermore, the color photoresist layer comprises a plurality of color photoresists arranged at intervals, the pattern of the color photoresist layer also comprises a plurality of periodic pattern units, each pattern unit comprises a bright line and a dark line, and the width of each pattern unit is the sum of the width of one color photoresist and the distance from the color photoresist to the adjacent color photoresist.
Furthermore, the backlight module comprises a brightness enhancement film, the pattern of the brightness enhancement film is composed of a plurality of pattern units, the width of the pattern unit of the brightness enhancement film is larger than any integer multiple of the width of the pattern unit of the color photoresist layer, and the width of the pattern unit of the brightness enhancement film and the width of the pattern unit of the color photoresist layer on the retina are in the integer multiple relation.
Further, the image of the color resist layer presented on the retina partially or fully blocks the image of the brightness enhancement film or the image of the brightness enhancement film partially or fully blocks the image of the color resist layer.
Further, under the condition that the widths of the pattern units of the plurality of color photoresist layers are the same and are a fixed value, the width of the pattern unit of the brightness enhancement film far away from the human eyes is smaller than the width of the pattern unit of the brightness enhancement film near to the human eyes.
Further, the width of the pattern unit of the brightness enhancement film is smaller than that of the pattern unit of the color photoresist layer, and the ratio of the width of the pattern unit of the brightness enhancement film to the width of the pattern unit of the color photoresist layer on the retina is 1: 1.
Further, the brightness enhancement film comprises a plurality of microstructures arranged at intervals, the pattern of the brightness enhancement film is composed of a plurality of periodic pattern units, each pattern unit is composed of a bright line and a dark line, and the width of each pattern unit is the sum of the width of one brightness enhancement film and the distance from each microstructure to an adjacent microstructure.
The display device compensates the near-far effect by adjusting the width of the pattern unit of the touch electrode layer and the width of the pattern unit of the color photoresist layer, so that the color photoresist layer and the touch electrode are overlapped on the retina of a human eye to eliminate or reduce moire fringes; meanwhile, the pattern unit width of the brightness enhancement film and the pattern unit width of the color photoresist layer are adjusted so that the color photoresist layer and the brightness enhancement film are overlapped on the retina of a human eye to eliminate or reduce moire fringes.
Drawings
Fig. 1 is a schematic structural diagram of a touch display device in the prior art.
Fig. 2 is a schematic diagram of moire fringes generated by overlapping images of a touch electrode layer and a color photoresist layer of a touch display device in the prior art.
Fig. 3 is a schematic diagram of moire fringes generated by superimposing a brightness enhancement film and a color photoresist layer image of a touch display device in the prior art.
Fig. 4 is a schematic structural diagram of the touch display panel of the present invention.
Fig. 5 is a schematic diagram of the touch electrode layer and the color photoresist layer of the touch display device according to the preferred embodiment of the invention for eliminating moire fringes by image overlapping.
FIG. 6 is a schematic diagram of a touch display device according to the best embodiment of the present invention, in which a brightness enhancement film and a color photoresist layer are overlapped to eliminate moire fringes.
Description of the main elements
The following detailed description will further illustrate the invention in conjunction with the above-described figures.
Detailed Description
Referring to fig. 4, fig. 4 is a schematic view of a touch display device 20 according to a preferred embodiment of the invention. The touch display device 20 includes a touch display panel 21 and a backlight module 22 disposed below the touch display panel 21 for providing a light source for the touch display panel 21. The touch display panel 21 is an in-cell touch display panel 21.
The touch display panel 21 includes, in order from top to bottom, an upper polarizer 211 for display, a glass substrate 212, a color photoresist layer 213, a liquid crystal layer 214, a TFT layer 215, and a lower polarizer 216. The glass substrate 212 has a first surface 212a and a second surface 212b opposite to the first surface 212 a. The color photoresist layer 213 includes a plurality of color photoresists 2131 arranged along a first direction and black matrixes 2132 disposed between the color photoresists 2131, wherein the color photoresists 2131 and the black matrixes 2132 are disposed on the first surface 212a of the glass substrate 212 at intervals. The color resists 2131 are red (R), green (G) and blue (B) color resists. Each of the color resists 2131 has a regular shape, an equal size and the same pitch, and visually exhibits a pattern including a set of periodic lines with uniform pitch.
The touch display panel 21 further includes a touch electrode layer 217 for touch control, the touch electrode layer 217 includes a plurality of touch sensing electrodes 2171 arranged at intervals along a first direction, and a first distance 2172 is provided between one touch sensing electrode 2171 and another touch sensing electrode 2171. The touch sensing electrodes 2171 are disposed between the color filter layer 213 and the upper polarizer, and specifically, the touch sensing electrodes 2171 arranged along the first direction are attached to the second surface 212b of the glass substrate 212 through an OCA glue layer. The touch sensing electrode 2171 is a transparent electrode, and may be an Indium Tin Oxide (ITO) electrode or a nano silver electrode. The touch sensing electrodes 2171 arranged in the first direction are regular in shape, equal in size, and the same in spacing 2172, and visually present a pattern including a set of periodic lines with uniform spacing.
It is understood that the touch display panel 21 may further include a plurality of touch sensing electrodes 2171 arranged in a second direction, where the first direction and the second direction intersect. The finger touch capacitance can be sensed by the touch sensing electrodes 2171 arranged along the first direction and the touch sensing electrodes 2171 arranged along the second direction. Meanwhile, the touch display panel 21 further includes other structures for implementing the touch display function, and the description is omitted since the invention is irrelevant.
Referring to fig. 5, the pattern of the touch electrode layer 217 is composed of a plurality of periodic pattern units, each pattern unit is composed of a bright line and a dark line, and the width of the pattern unit is P1, so that P1 is the width of one touch sensing electrode 2171 plus the distance 2172 from the touch sensing electrode 2171 to an adjacent touch sensing electrode 2171. Similarly, the pattern of the color resist layer 213 is also composed of a plurality of periodic pattern units, each of the pattern units is composed of a light line and a dark line, and if the width of the pattern unit is P2, the P2 is the width of one color resist 2131 plus the distance from the color resist 2131 to an adjacent color resist 2131, i.e., the width of the black matrix 2132. In the best mode of the invention, P1 < P2, that is, the width of the pattern unit of the touch electrode layer 217 is smaller than that of the color photoresist layer 213. And P1 and P2 satisfy that the images of the underlying color resist layer 213 and touch electrode layer 217 on the retina of a human eye overlap without moire, i.e., the image of the color resist layer 213 partially or totally blocks the image of the touch electrode layer 217 or the image of the touch electrode layer 217 partially or totally blocks the image of the color resist layer 213.
Since the P1 includes the width of one touch sensing electrode 2171 and the first spacing 2172 between two adjacent touch sensing electrodes 2171, the P2 includes the width of one color photoresist 2131 plus the spacing between two adjacent color photoresists 2131, i.e., the size of the black matrix 2132. Therefore, the overlapping of the images of the color resist layer 213 and the touch electrode layer 217 visually positioned below on the retina of the human eye can be satisfied by adjusting at least one of the above 4 parameters such that P1 and P2.
In this embodiment, the ratio of the widths of the images of the color photoresist layer 213 and the touch electrode layer 217 presented on the retina of the viewer is 1:1 for P1 and P2, while in other embodiments, the ratio of the widths of the images of the color photoresist layer 213 and the touch electrode layer 217 presented on the retina of the viewer is 1:1 for P1 and P2 satisfy any integer multiple that P1 is smaller than P2, so that the widths of the images of the pattern units of the color photoresist layer 213 and the pattern units of the touch electrode layer 217 presented on the retina of the viewer are in the integer multiple relationship, and thus the widths of the images of the color photoresist layer 213 and the touch electrode layer 217 presented on the retina of the viewer are in the integer multiple relationship. At this time, the image of the color resist layer 213 appearing on the retina partially or entirely blocks the image of the touch electrode layer 217 or the image of the touch electrode layer 217 partially or entirely blocks the image of the color resist layer 213, and the pattern of the color resist layer 213 and the pattern of the touch electrode layer 217 are overlapped on the retina of a human eye without moire fringes.
In addition, in the preferred embodiment of the present invention, it is assumed that P1 and P2 are uniform, and actually, the compensation values of P1 and P2 are determined according to the thickness of the glass substrate, and the distance and angle observed by human eyes by such a pattern adjustment compensation method. Generally, in the case that the widths P2 of the pattern units of the color photoresist layers 213 are the same and are a fixed value, the width P1 of the pattern unit of the touch electrode layer 217 farther away from the human eye is larger than the width P1 of the pattern unit of the touch electrode layer 217 closer to the human eye, that is, the width P1 of the pattern unit of the touch electrode layer 217 farther away from the human eye is larger, so that the widths of the P1 and the P2 displayed on the retina are the same.
The backlight module 22 includes a light source 221 and a Brightness Enhancement Film 222 (BEF), and it can be understood that the backlight module further includes a back plate, a reflective sheet, a diffusion sheet, etc. depending on the type of the backlight module, the backlight module may further include a light guide plate, etc. since other structures of the backlight module are not related to the inventive concept of the present invention, further description is omitted. The brightness enhancement film 222 is disposed between the light source 221 and the lower polarizer, and is configured to collect light emitted from the light source 221 toward the touch display panel 21, so as to improve brightness of the touch display panel 21, and recycle light that is not utilized outside a viewing angle by reflection of the light, so as to reduce loss of the light, and further achieve energy saving and environmental protection effects. The brightness enhancement film 222 is a transparent resin film, such as a polyethylene terephthalate (PET) film, on the surface of the film facing the display module, a plurality of microstructures 2221, such as sawtooth or wave-shaped prism structures, are disposed at intervals along a first direction, and a second interval 2132 is disposed between one microstructure 2221 and another adjacent microstructure 2221. The brightness enhancement film 222 also visually exhibits a pattern comprising a set of uniformly spaced periodic lines when the microstructures are regular in shape, equal in size, and the second pitch 2132 is the same.
Referring to fig. 6, the pattern of the brightness enhancement film 222 is composed of a plurality of periodic pattern units, each of the pattern units is composed of a bright line and a dark line, and if the width of the pattern unit is P3, P3 is the width of one microstructure 2221 plus the microstructure 2221 to the second distance 2132 from the adjacent microstructure 2221. The best mode of the invention is P2 < P3, that is, the width of the pattern unit of the brightness enhancement film 222 is larger than the width of the pattern unit of the color photoresist layer 213, and P2 and P3 satisfy that the images of the underlying brightness enhancement film 222 and color photoresist layer 213 on the retina of the human eye overlap without moire, i.e., the image of the brightness enhancement film 222 partially or totally blocks the image of the color photoresist layer 213 or the image of the color photoresist layer 213 partially or totally blocks the image of the brightness enhancement film 222.
Since P3 includes the width of one microstructure 2221 and the second pitch 2132 of two adjacent microstructures 2221, P2 includes the width of one color photoresist 2131 plus the pitch of two adjacent color photoresists 2131, i.e., the width of black matrix 2132. Accordingly, at least one of the above 4 parameters can be adjusted so that the P2 and P3 satisfy that the images of the visually underlying brightness enhancement film 222 and color resist layer 213 overlap on the retina of the human eye.
In this embodiment, the ratio of the widths of the image presented by the brightness enhancement film 222 and the color resist layer 213 to the retina of the viewer is 1:1 for P2 and P3, while in other embodiments, the ratio of P2 and P3 is such that P3 is greater than any integer multiple of P2, such that the pattern elements of the brightness enhancement film 222 and the pattern elements of the color resist layer 213 are presented to the retina of the viewer in the integer multiple relationship, such that the widths of the pattern presented by the color resist layer 213 and the brightness enhancement film 222 to the retina of the viewer are in the integer multiple relationship. At this time, the image of the brightness enhancement film 222 partially or completely blocks the image of the color resist layer 213 or the image of the color resist layer 213 partially or completely blocks the image of the brightness enhancement film 222, and thus the image of the color resist layer 213 and the image of the brightness enhancement film 222 are overlapped on the retina of the human eye without moire fringes.
In addition, in the preferred embodiment of the present invention, it is assumed that P2 and P3 are uniform, and actually, the compensation values of P2 and P3 are determined according to the thickness of the glass substrate, and the distance and angle observed by human eyes by such a pattern adjustment compensation method. Generally, in the case that the widths P2 of the pattern units of the color photoresist layers 213 are the same and are a fixed value, the width P3 of the pattern unit of the brightness enhancement film 222 farther away from the human eye is smaller than the width P3 of the pattern unit of the brightness enhancement film 222 closer to the human eye, i.e., the width P3 of the pattern unit of the brightness enhancement film 222 farther away from the human eye is smaller, so that the widths of the P3 and the P2 appearing on the retina are the same.
The display device compensates the near-far effect by adjusting the width of the pattern unit of the touch electrode layer and the width of the pattern unit of the color photoresist layer, so that the color photoresist layer and the touch electrode are overlapped on the retina of a human eye to eliminate or reduce moire fringes; meanwhile, the pattern unit width of the brightness enhancement film and the pattern unit width of the color photoresist layer are adjusted so that the color photoresist layer and the brightness enhancement film are overlapped on the retina of a human eye to eliminate or reduce moire fringes.
Claims (13)
1. A touch display panel comprises a color photoresist layer, a touch electrode layer and a glass substrate, wherein the glass substrate is provided with a first surface and a second surface opposite to the first surface, the color photoresist layer is arranged on the first surface of the glass substrate, the touch electrode layer is arranged on the second surface of the glass substrate, and the touch display panel is characterized in that:
the color photoresist layer comprises a plurality of color photoresists arranged at intervals, the pattern of the color photoresist layer consists of a plurality of periodic pattern units, the pattern unit of the color photoresist layer consists of a bright line and a dark line, and the width of the pattern unit of the color photoresist layer is the sum of the width of one color photoresist and the distance between two adjacent color photoresists;
the touch electrode layer comprises a plurality of touch sensing electrodes arranged at intervals, the pattern of the touch electrode layer also comprises a plurality of periodic pattern units, the pattern unit of the touch electrode layer comprises a bright line and a dark line, and the width of the pattern unit of the touch electrode layer is the sum of the width of one touch sensing electrode and the distance between two adjacent touch sensing electrodes;
the width of the pattern unit of the touch electrode layer is smaller than any integer multiple of the width of the pattern unit of the color light resistance layer, so that the width of the image, which is displayed on the retina of an audience, of the pattern unit of the touch electrode layer and the pattern unit of the color light resistance layer is in the integer multiple relation.
2. The touch display panel of claim 1, wherein: the image of the color light resistance layer presented on the retina partially or completely blocks the image of the touch electrode layer or the image of the touch electrode layer partially or completely blocks the image of the color light resistance layer.
3. The touch display panel of claim 2, wherein: under the condition that the widths of the pattern units of the color photoresist layer are the same and are a fixed value, the width of the pattern unit of the touch electrode layer far away from human eyes is larger than the width of the pattern unit of the touch electrode layer near to the human eyes.
4. The touch display panel of claim 3, wherein: the width of the pattern unit of the touch electrode layer is smaller than that of the pattern unit of the color photoresist layer, and the ratio of the widths of the pattern unit of the touch electrode layer and the pattern unit of the color photoresist layer on the image of the retina is 1: 1.
5. A touch display device comprises a touch display panel and a backlight module, wherein the touch display panel comprises a color photoresist layer, a touch electrode layer and a glass substrate, the glass substrate is provided with a first surface and a second surface opposite to the first surface, the color photoresist layer is arranged on the first surface of the glass substrate, the touch electrode layer is arranged on the second surface of the glass substrate, and the touch display device is characterized in that: the color photoresist layer comprises a plurality of color photoresists arranged at intervals, the pattern of the color photoresist layer consists of a plurality of periodic pattern units, the pattern unit of the color photoresist layer consists of a bright line and a dark line, and the width of the pattern unit of the color photoresist layer is the sum of the width of one color photoresist and the distance between two adjacent color photoresists;
the touch electrode layer comprises a plurality of touch sensing electrodes arranged at intervals, the pattern of the touch electrode layer also comprises a plurality of periodic pattern units, the pattern unit of the touch electrode layer comprises a bright line and a dark line, and the width of the pattern unit of the touch electrode layer is the sum of the width of one touch sensing electrode and the distance between two adjacent touch sensing electrodes;
the width of the pattern unit of the touch electrode layer is smaller than any integer multiple of the width of the pattern unit of the color light resistance layer, so that the width of the image, which is displayed on the retina of an audience, of the pattern unit of the touch electrode layer and the pattern unit of the color light resistance layer is in the integer multiple relation.
6. The touch display device of claim 5, wherein: the image of the color light resistance layer presented on the retina partially or completely blocks the image of the touch electrode layer or the image of the touch electrode layer partially or completely blocks the image of the color light resistance layer.
7. The touch display device of claim 6, wherein: under the condition that the widths of the pattern units of the color photoresist layer are the same and are a fixed value, the width of the pattern unit of the touch electrode layer far away from human eyes is larger than the width of the pattern unit of the touch electrode layer near to the human eyes.
8. The touch display device of claim 7, wherein: the width of the pattern unit of the touch electrode layer is smaller than that of the pattern unit of the color photoresist layer, and the ratio of the widths of the pattern unit of the touch electrode layer and the pattern unit of the color photoresist layer on the image of the retina is 1: 1.
9. The touch display device of claim 5, wherein: the backlight module comprises a brightness enhancement film, the pattern of the brightness enhancement film is composed of a plurality of pattern units, the width of the pattern unit of the brightness enhancement film is larger than any integer multiple of the width of the pattern unit of the color light resistance layer, and the width of the pattern unit of the brightness enhancement film and the width of the pattern unit of the color light resistance layer on the retina are in the integer multiple relation.
10. The touch display device of claim 9, wherein: the image of the color resist layer presented on the retina partially or completely blocks the image of the brightness enhancement film or the image of the brightness enhancement film partially or completely blocks the image of the color resist layer.
11. The touch display device of claim 10, wherein: under the condition that the widths of a plurality of pattern units of the color photoresist layer are the same and are a fixed value, the width of the pattern unit of the brightness enhancement film far away from human eyes is smaller than the width of the pattern unit of the brightness enhancement film close to the human eyes.
12. The touch display device of claim 11, wherein: the width of the pattern unit of the brightness enhancement film is smaller than that of the pattern unit of the color photoresist layer, and the ratio of the width of the pattern unit of the brightness enhancement film to the width of the pattern unit of the color photoresist layer on the retina is 1: 1.
13. The touch display device of claim 9, wherein: the brightness enhancement film comprises a plurality of microstructures arranged at intervals, the pattern of the brightness enhancement film is composed of a plurality of periodic pattern units, the pattern units of the brightness enhancement film are composed of a bright line and a dark line, and the width of the pattern units of the brightness enhancement film is the sum of the width of one microstructure and the distance between two adjacent microstructures.
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| CN111399692A (en) * | 2020-04-29 | 2020-07-10 | 业成科技（成都）有限公司 | Touch panel, preparation method thereof and electronic equipment |
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