CN112882605A - Optical touch display panel - Google Patents

Optical touch display panel Download PDF

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Publication number
CN112882605A
CN112882605A CN202110225924.1A CN202110225924A CN112882605A CN 112882605 A CN112882605 A CN 112882605A CN 202110225924 A CN202110225924 A CN 202110225924A CN 112882605 A CN112882605 A CN 112882605A
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CN
China
Prior art keywords
capacitor
wire
sub
display panel
transistor
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Granted
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CN202110225924.1A
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Chinese (zh)
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CN112882605B (en
Inventor
陆志涛
张鑫
姚江波
陈黎暄
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Shenzhen China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Priority to CN202110225924.1A priority Critical patent/CN112882605B/en
Publication of CN112882605A publication Critical patent/CN112882605A/en
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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
    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
    • 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
    • G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means

Abstract

The embodiment of the application provides an optical touch display panel, the optical touch display panel includes a plurality of touch units, each touch unit includes a first transistor, at least one wire capacitor and a second transistor, each wire capacitor is electrically connected with one first transistor and one second transistor, wherein, the line width of the wire capacitor is less than 15 microns. In this application, through with the linewidth of wire electric capacity sets up to being less than 15 microns, and then avoids the wire electric capacity is perceived by the people's eye, and then has improved light touch-control display panel's visual effect, thereby has improved light touch-control display panel's performance.

Description

Optical touch display panel
Technical Field
The application relates to the technical field of display, in particular to an optical touch display panel.
Background
Display technologies are widely used in various display fields, in which demands for interactive display technologies are increasing. Currently, the interactive display technology is a touch display technology, but the touch display technology has a problem that remote interaction cannot be performed. In order to realize remote interaction, motion capture analysis is usually performed by a camera, but the accuracy of recognition of remote interaction realized by motion capture analysis by the camera is low, which causes serious influences such as insensitive response and misoperation. In order to solve the problem of insensitive remote interaction response, a photosensitive sensor is integrated into a light touch display panel, and laser is used as an operation source to realize an accurate remote interaction technology.
The optical touch display panel comprises a photosensitive transistor, an on-state transistor and a storage capacitor. The photosensitive transistor comprises a drain electrode, at present, in order to improve the storage capacity of the storage capacitor, the area of the storage capacitor is generally made to be large, but the limit resolution capability of human eyes is 15 micrometers, so that the large-area storage capacitor area can be seen by people, and the visual effect is influenced.
Disclosure of Invention
The embodiment of the application provides an optical touch display panel to improve the performance of the optical touch display panel.
The embodiment of the application provides an optical touch display panel, the optical touch display panel comprises a first transistor, at least one wire capacitor and a second transistor, each wire capacitor is electrically connected with the first transistor and the second transistor, wherein the line width of the wire capacitor is less than 15 micrometers.
Optionally, in some embodiments of the present application, the wire capacitor includes a first sub-wire capacitor, a second sub-wire capacitor and a first discontinuity portion, the first sub-wire capacitor is electrically connected to the first transistor, the second sub-wire capacitor is electrically connected to the second transistor, the first discontinuity portion is located between the first sub-wire capacitor and the second sub-wire capacitor, the optical touch display panel further includes a first surface capacitor, the first surface capacitor is located in the first discontinuity portion, the first surface capacitor is electrically connected to the first sub-wire capacitor and the second sub-wire capacitor, and a maximum length of the first surface capacitor is less than 15 micrometers.
Optionally, in some embodiments of the present application, a line width of the conductive line capacitor is smaller than a maximum length of the first surface capacitor.
Optionally, in some embodiments of the present application, the wire capacitor includes a second discontinuity portion, the second discontinuity portion is located between the second sub-wire capacitor and the second transistor, the optical touch display panel further includes a second surface capacitor, the second surface capacitor is located at the second discontinuity portion, the second surface capacitor is electrically connected to the second sub-wire capacitor and the second transistor, and a maximum length of the second surface capacitor is less than 15 micrometers.
Optionally, in some embodiments of the present application, a line width of the wire capacitor is smaller than a maximum length of the second surface capacitor.
Optionally, in some embodiments of the present application, the wire capacitor includes a third sub-wire capacitor and a third discontinuity portion, the first discontinuity portion is located between the first sub-wire capacitor and the third sub-wire capacitor, the third discontinuity portion is located between the third sub-wire capacitor and the second sub-wire capacitor, the optical touch display panel further includes a third surface capacitor, the third surface capacitor is located the third discontinuity portion, the third surface capacitor is electrically connected to the third sub-wire capacitor and the second sub-wire capacitor, and a maximum length of the third surface capacitor is less than 15 micrometers.
Optionally, in some embodiments of the present application, a line width of the conductive line capacitor is smaller than a maximum length of the third surface capacitor.
Optionally, in some embodiments of the present application, the wire capacitor includes a fourth sub-wire capacitor, a fifth sub-wire capacitor and a fourth discontinuity, the second discontinuity is located between the second sub-wire capacitor and the fourth sub-wire capacitor, the fourth discontinuity is located between the fourth sub-wire capacitor and the fifth sub-wire capacitor, the first discontinuity is located between the first sub-wire capacitor, the third sub-wire capacitor and the fifth sub-wire capacitor, the optical touch display panel further includes a fourth surface capacitor, the fourth surface capacitor is located in the fourth discontinuity, the fourth surface capacitor is electrically connected to the fourth sub-wire capacitor and the fifth sub-wire capacitor, and a maximum length of the fourth surface capacitor is less than 15 microns.
Optionally, in some embodiments of the present application, a line width of the conductive line capacitor is smaller than a maximum length of the fourth surface capacitor.
Optionally, in some embodiments of the present application, the wire capacitor includes a sixth sub-wire capacitor, and the sixth sub-wire capacitor is electrically connected to the first surface capacitor and the second surface capacitor.
The embodiment of the application provides an optical touch display panel, which comprises a first transistor, at least one wire capacitor and a second transistor, wherein each wire capacitor is electrically connected with the first transistor and the second transistor, and the line width of each wire capacitor is less than 15 micrometers. In this application, through with the linewidth of wire electric capacity sets up to being less than 15 microns, and then avoids the wire electric capacity is perceived by the people's eye, and then has improved light touch-control display panel's visual effect, thereby has improved light touch-control display panel's performance.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a first schematic plan view of an optical touch display panel according to an embodiment of the present disclosure.
Fig. 2 is a schematic cross-sectional view of the first transistor of fig. 1 along line AA.
Fig. 3 is a schematic cross-sectional view of the wire capacitor of fig. 1 along line BB.
Fig. 4 is a schematic cross-sectional view of the second transistor of fig. 1 along line CC.
Fig. 5 is a second schematic plan view of an optical touch display panel according to an embodiment of the present disclosure.
Fig. 6 is a third schematic plan view of an optical touch display panel according to an embodiment of the present disclosure.
Fig. 7 is a fourth schematic plan view of an optical touch display panel according to an embodiment of the present application.
Fig. 8 is a fifth schematic plan view of an optical touch display panel according to an embodiment of the present disclosure.
Fig. 9 is a sixth schematic plan view of an optical touch display panel according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
Referring to fig. 1, fig. 1 is a first schematic plan view of an optical touch display panel according to an embodiment of the present disclosure. The present application provides an optical touch display panel 10. The optical touch display panel 10 includes a plurality of optical touch units 11, first voltage signal traces 100 arranged along a row direction, second voltage signal traces 200 arranged along a column direction, read signal traces 300 arranged along the row direction, and scan signal traces 400 arranged along the column direction. Each of the optical touch units 11 is located in an area surrounded by the first voltage signal trace 100, the second voltage signal trace 200, the read signal trace 300, and the scan signal trace 400. The first voltage signal trace 100 and the read signal trace 300 are disposed opposite and in parallel. The second voltage signal trace 200 is opposite to and parallel to the scan signal trace 400. Each of the optical touch units 11 includes a first transistor 500, at least one wire capacitor 600, and a second transistor 700. The specific description is as follows:
each of the wire capacitors 600 is electrically connected to one of the first transistors 500 and one of the second transistors 700. The line width W of the wire capacitor 600 is less than 15 microns.
In one embodiment, the line width W of the wire capacitor 600 is 1 micron to 14 microns.
In an embodiment, the line width W of the wire capacitor 600 may be 2 microns, 3 microns, 8 microns, 10 microns, 12 microns, 13 microns, or the like.
In an embodiment, the planar shape of the wire capacitor 600 includes one or a combination of straight lines, grid lines, curved lines, circular lines, or other figures.
In the application, the line width W of the wire capacitor 600 is set to be smaller than 15 micrometers, so that the wire capacitor 600 is prevented from being perceived by human eyes, and the visual effect of the optical touch display panel 10 is improved, so that the performance of the optical touch display panel 10 is improved.
The first transistor 500 includes a first source 510, a first drain 520, and a first gate 530. The first transistor 500 is a photo transistor. The first transistor 500 generates a leakage current after being sensed.
The first source electrode 510 is electrically connected to the first voltage signal trace 100. The first voltage signal trace 100 is used for inputting a voltage signal SVDD to the first source 510. The first drain 520 is connected to the wire capacitor 600. The first gate 530 is electrically connected to the second voltage signal trace 200. The second voltage signal trace 200 is used for inputting a first control signal SVGG to control the first transistor 500 to be turned on or off.
The second transistor 700 is a switching transistor. The second transistor 700 includes a second source 710, a second drain 720, and a second gate 730. The second source electrode 710 is electrically connected to the wire capacitor 600. The second drain 720 is electrically connected to the read signal trace 300. The read signal trace (Readout)300 is used for reading the leakage current in the wire capacitor 600 when the second transistor 700 is turned on, i.e. reading the charges stored in the wire capacitor 600. The second gate 730 is electrically connected to the scan signal trace 400. The scan signal trace 400 is used for inputting a second control signal Gate to control the second transistor 700 to be turned on or off.
In the present application, the first transistor 500 is controlled to be turned off by a first control signal SVGG, so that the first transistor 500 generates a leakage current and stores the leakage current in the wire capacitor 600, and at this time, the second transistor 700 is in an off state; when the second transistor 700 is controlled to be turned on by the second control signal Gate, the leakage current, i.e., the charge, stored in the wire capacitor 600 is read by the read signal trace 300.
Referring to fig. 2-4, fig. 2 is a cross-sectional view of the first transistor along line AA in fig. 1. Fig. 3 is a schematic cross-sectional view of the wire capacitor of fig. 1 along line BB. Fig. 4 is a schematic cross-sectional view of the second transistor of fig. 1 along line CC. The optical touch display panel 10 further includes a substrate 800. The substrate 800 may be a glass substrate or a polyimide substrate. The first transistor 500, the wire capacitor 600, and the second transistor 700 are disposed on the substrate 800. The first transistor 500 further includes a first gate insulating layer 540 and a first active layer 550. The wire capacitor 600 includes a first plate 610, an inorganic layer 620, and a second plate 630. The second transistor 700 further includes a second gate insulating layer 740 and a second active layer 750.
The first gate 530, the first plate 610 and the second gate 730 are disposed on the same layer on the substrate 800, and the first gate 530, the first plate 610 and the second gate 730 are insulated from each other. The material of the first gate 530, the first plate 610 and the second gate 730 includes one or more of Al, Ag, Mo, Fe and Mn. The first gate insulating layer 540, the inorganic layer 620, and the second gate insulating layer 740 are disposed at the same layer. The first gate insulating layer 540 covers the substrate 800 and the first gate 530. The inorganic layer 620 covers the substrate 800 and the first plate 610. The second gate insulating layer 740 covers the substrate 800 and the second gate 730. The first active layer 550 and the second active layer 750 are disposed in the same layer. The first active layer 550 is disposed on the first gate insulating layer 540. The second active layer 750 is disposed on the second gate insulating layer 740. The material of the first active layer 550 and the second active layer 750 includes amorphous silicon. The first source electrode 510, the first drain electrode 520, the second plate 630, the second source electrode 710, and the second drain electrode 720 are disposed at the same layer. The first source electrode 510 is disposed at one side of the first active layer 550. The first drain electrode 520 is disposed at the other side of the first active layer 550. The second plate 630 is disposed on the inorganic layer 620. The second source electrode 710 is disposed at one side of the second active layer 750. The second drain electrode 720 is disposed at the other side of the second active layer 750. The material of the first source electrode 510, the first drain electrode 520, the second plate 630, the second source electrode 710 and the second drain electrode 720 includes one or a combination of Al, Ag, Mo, Fe and Mn.
In one embodiment, the optical touch display panel 10 further includes a passivation layer 900. The passivation layer 900 covers the first transistor 500, the wire capacitor 600, and the second transistor 700. The passivation layer 900 is used to protect the first transistor 500, the wire capacitor 600 and the second transistor 700, so as to prevent the first transistor 500, the wire capacitor 600 and the second transistor 700 from being damaged in subsequent processes or in use, thereby improving the performance of the optical touch display panel 10.
In this application, through setting the wire electric capacity to the threadiness, and the linewidth of wire electric capacity sets up to being less than 15 microns, the storage capacitor of large tracts of land among the prior art is shared into the linear wire electric capacity that the area is the same, and, the electric charge volume of wire electric capacity storage is unchangeable, avoided storage capacitor among the prior art to lead to storage capacitor to be seen by people's eye because of the area is too big, promptly, the wire electric capacity of this application is less than the discernment ability of people's eye, and then eliminate the influence of wire electric capacity to people's eye, promptly, in this application, make the wire electric capacity under the same area, reduce the linewidth of wire electric capacity, and then improved light touch-control display panel's visual effect, promptly improved light touch-control display panel's display performance.
Referring to fig. 5, fig. 5 is a second schematic plan view of an optical touch display panel according to an embodiment of the present disclosure. It should be noted that the second type is different from the first type in that:
the lead capacitor 600 includes a first sub-lead capacitor 640, a second sub-lead capacitor 650, and a first discontinuity 658. The first sub-conductor capacitor 640 is electrically connected to the first transistor 500. The second wire capacitor 650 is electrically connected to the second transistor 700. The first discontinuity 658 is located between the first sub-conductor capacitance 640 and the second sub-conductor capacitance 650. The first discontinuity 658 disconnects the first sub-conductor capacitance 640 from the second sub-conductor capacitance 650.
The optical touch display panel 10 further includes a first surface capacitor 1000. The first surface capacitor 1000 is located at the first discontinuity 658. The first surface capacitor 1000 electrically connects the first sub-conductor capacitor 640 and the second sub-conductor capacitor 650. The maximum length D of the first surface capacitor 10001Less than 15 microns. The first surface capacitor 1000 and the wire capacitor 600 are used to store electric charges.
In an embodiment, the line width W of the conductive line capacitor 600 is smaller than the maximum length D of the first surface capacitor 10001。
In one embodiment, the maximum length D of the first surface capacitor 10001Is 1 micron to 14 microns.
In one embodiment, the maximum length D of the first surface capacitor 10001And may be 2 microns, 3 microns, 8 microns, 10 microns, 12 microns, 13 microns, or the like.
In an embodiment, the planar shape of the first surface capacitor 1000 includes one or a combination of rectangular, diamond, circular, oval, triangular or irregular geometric shapes.
The maximum length means the maximum length of a plane shape, and if the plane shape is a rhombus, the maximum length is a diagonal line thereof, or if the plane shape is a circle, the maximum length is a diameter thereof, or the like.
In one embodiment, the line widths W of the first sub-conductor capacitor 640 and the second sub-conductor capacitor 650 are equal.
In one embodiment, the line widths W of the first sub-wire capacitor 640 and the second sub-wire capacitor 650 are not equal.
In the application, the storage capacitor with a large area in the prior art is set to be the linear lead capacitor and the first surface capacitor, and the line width of the lead capacitor and the maximum length of the first surface capacitor are both set to be less than 15 micrometers, so that the storage capacitor with a large area in the prior art is divided into the linear lead capacitor and the first surface capacitor with the same area, and the charge amount stored by the lead capacitor and the first surface capacitor is unchanged, thereby avoiding the storage capacitor from being seen by human eyes due to the overlarge area in the prior art, namely, the capacitor for storing charges is set to be the linear lead capacitor and the first surface capacitor, so that the line width and the maximum length are less than the recognition capability of human eyes, further eliminating the influence of the storage capacitor on the human eyes, namely, the lead capacitor and the first surface capacitor are under the same area, and the line width of the lead capacitor and the maximum length of the first surface capacitor are reduced, and further, the visual effect of the optical touch display panel is improved, namely, the display performance of the optical touch display panel is improved.
Referring to fig. 6, fig. 6 is a third schematic plan view of an optical touch display panel according to an embodiment of the present disclosure. It should be noted that the difference between the third type and the second type is:
the wire capacitor 600 includes a second discontinuity 659. The second break 659 is located between the second sub-wire capacitor 650 and the second transistor 700. The second disconnection 659 disconnects the second sub-wire capacitor 650 from the second transistor 700.
The optical touch display panel 10 further includes a second surface capacitor 1100. The second surface capacitor 1100 is located at the second gap 659. The second side capacitor 1100 electrically connects the second sub-conductor capacitor 650 and the second transistor 700. Maximum length D of the second side capacitor 11002Less than 15 microns.
The first surface capacitor 1000, the second surface capacitor 1100 and the conductive line capacitor 600 are used to store charge.
In an embodiment, the line width W of the conductive line capacitor 600 is smaller than the maximum length D of the second surface capacitor 11002。
In one embodiment, the maximum length D of the second side capacitor 11002Is 1 micron to 14 microns.
In one embodiment, the maximum length D of the second side capacitor 11002And may be 2 microns, 3 microns, 8 microns, 10 microns, 12 microns, 13 microns, or the like.
In an embodiment, the planar shape of the second surface capacitor 1100 includes one or a combination of rectangular, diamond, circular, oval, triangular or irregular geometric shapes.
In one embodiment, the maximum length D of the first surface capacitor 10001And the maximum length D of the second side capacitor 11002The same is true.
In one embodiment, the maximum length D of the first surface capacitor 10001And the maximum length D of the second side capacitor 11002Are not identical.
In this application, through setting the linear wire electric capacity to the storage capacitor of large tracts of land among the prior art, first face electric capacity and second face electric capacity, and with the line width of wire electric capacity, the maximum length of first face electric capacity and the maximum width of second face electric capacity all set up to being less than 15 microns, and, the wire electric capacity, the memory space of first face electric capacity and second face electric capacity is unchangeable, make the wire electric capacity, first face electric capacity and second face electric capacity are less than the discernment ability of people's eye, and then eliminate the wire electric capacity, first face electric capacity and second face electric capacity are to the influence of people's eye, and then improved light touch-control display panel's visual effect, namely, light touch-control display panel's display performance has.
Referring to fig. 7, fig. 7 is a fourth schematic plan view of an optical touch display panel according to an embodiment of the present disclosure. It should be noted that the fourth and third methods are different in that:
the wire capacitor 600 includes a third sub-wire capacitor 660 and a third discontinuity 669. The first discontinuity 658 is located between the first sub-conductor capacitance 640 and the third sub-conductor capacitance 660. The third discontinuity 669 is located between the third sub-conductor capacitor 660 and the second sub-conductor capacitor 650. The third discontinuity 669 disconnects the third sub-conductor capacitance 660 from the second sub-conductor capacitance 650.
The optical touch display panel 10 further includes a third surface capacitor 1200. The third surface capacitor 1200 is located at the third discontinuity 669. The third surface capacitor 1200 is electrically connected to the third sub-conductive line capacitor 660 and the second sub-conductive line capacitor 650. The maximum length D of the third surface capacitor 12003Less than 15 microns.
The first surface capacitor 1000, the second surface capacitor 1100, the third surface capacitor 1200 and the conductive line capacitor 600 are used for storing charges.
In an embodiment, the line width W of the conductive line capacitor 600 is smaller than the maximum length D of the third surface capacitor 12003。
In one embodiment, the maximum length D of the first surface capacitor 10001The maximum length D of the second side capacitor 11002And the maximum length D of the third surface capacitor 12003May or may not be the same, and is not limited herein.
In an embodiment, the line widths of the first sub-wire capacitor 640, the second sub-wire capacitor 650, and the third sub-wire capacitor 660 may be the same or different, and are not limited herein.
Referring to fig. 8, fig. 8 is a fifth plane view of an optical touch display panel according to an embodiment of the present disclosure. It should be noted that the difference between the fifth and the fourth is that:
the wire capacitor 600 includes a fourth sub-wire capacitor 670, a fifth sub-wire capacitor 680, and a fourth discontinuity 689. The second break 659 is located between the second sub-wire capacitor 650 and the fourth sub-wire capacitor 670. The fourth discontinuity 689 is located between the fourth sub-conductor capacitance 670 and the fifth sub-conductor capacitance 680. The first discontinuity 658 is located between the first sub-conductor capacitance 640, the third sub-conductor capacitance 660, and the fifth sub-conductor capacitance 680. The first discontinuity 658 disconnects the first sub-conductor capacitance 640, the third sub-conductor capacitance 660, and the fifth sub-conductor capacitance 680.
The optical touch display panel 10 further includes a fourth surface capacitor 1300. The fourth surface capacitor 1300 is located at the fourth discontinuous portion 689. The fourth surface capacitor 1300 is electrically connected to the fourth sub-conductor capacitor 670 and the fifth sub-conductor capacitor 680. The maximum length D of the fourth surface capacitor 13004Less than 15 microns.
The line width W of the conductive line capacitor 600 is smaller than the maximum length D of the fourth surface capacitor 13004。
The first surface capacitor 1000, the second surface capacitor 1100, the third surface capacitor 1200, the fourth surface capacitor 1300, and the conductive line capacitor 600 are used for storing charges.
In one embodiment, the maximum length D of the first surface capacitor 10001The maximum length D of the second side capacitor 11002The maximum length D of the third surface capacitor 12003And the maximum length D of the fourth surface capacitor 13004May or may not be the same, and is not limited herein.
In an embodiment, the line widths of the first sub-wire capacitor 640, the second sub-wire capacitor 650, the third sub-wire capacitor 660, the fourth sub-wire capacitor 670, and the fifth sub-wire capacitor 680 may be the same or different, and are not limited herein.
In this application, divide into wire electric capacity, first face electric capacity, second face electric capacity, third face electric capacity and fourth face electric capacity through the storage capacitor with the monoblock, and, set up the line width of wire electric capacity, the maximum length of first face electric capacity, the maximum length of second face electric capacity, the maximum length of third face electric capacity and the maximum length of fourth face electric capacity to all be less than 15 microns for its storage charge volume has improved under the unchangeable condition light touch-control display panel's visual effect, and then has improved light touch-control display panel's display performance.
Referring to fig. 9, fig. 9 is a sixth schematic plan view of an optical touch display panel according to an embodiment of the present application. The sixth and fifth types are different in that:
the conductor capacitance 600 includes a sixth sub-conductor capacitance 690. The sixth sub-conductor capacitor 690 is electrically connected to the first side capacitor 1000 and the second side capacitor 1200. Through setting up sixth sub-wire electric capacity 690, further reduce wire electric capacity 600's linewidth, and then make the linewidth be less than the discernment ability of people's eye, and then eliminate the storage capacitor among the prior art to the influence of people's eye, and then improved light touch-control display panel 10's visual effect, thereby improved light touch-control display panel 10's performance.
In an embodiment, the line widths of the first sub-wire capacitor 640, the second sub-wire capacitor 650, the third sub-wire capacitor 660, the fourth sub-wire capacitor 670, the fifth sub-wire capacitor 680 and the sixth sub-wire capacitor 690 may be the same or different, and are not limited herein.
The optical touch display panel 10 may be an external photosensor panel or an embedded photosensor optical touch display panel.
The application embodiment provides an optical touch display panel, which comprises a first transistor, at least one wire capacitor and a second transistor, wherein each wire capacitor is electrically connected with one first transistor and one second transistor, and the line width of each wire capacitor is less than 15 microns. In this application, through with the linewidth of wire electric capacity sets up to being less than 15 microns, and then avoids the wire electric capacity is perceived by the people's eye, and then has improved light touch-control display panel's visual effect, thereby has improved light touch-control display panel's performance.
The foregoing describes in detail an optical touch display panel provided in an embodiment of the present application, and a specific example is applied to the detailed description to explain the principles and embodiments of the present application, and the description of the foregoing embodiment is only used to help understand the method and the core concept of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (10)

1. An optical touch display panel is characterized by comprising a plurality of touch units, each touch unit comprises a first transistor, at least one wire capacitor and a second transistor, each wire capacitor is electrically connected with the first transistor and the second transistor, and the line width of each wire capacitor is smaller than 15 micrometers.
2. The optical touch display panel according to claim 1, wherein the wire capacitor comprises a first sub-wire capacitor, a second sub-wire capacitor and a first discontinuity portion, the first sub-wire capacitor is electrically connected to the first transistor, the second sub-wire capacitor is electrically connected to the second transistor, the first discontinuity portion is located between the first sub-wire capacitor and the second sub-wire capacitor, the optical touch display panel further comprises a first surface capacitor, the first surface capacitor is located at the first discontinuity portion, the first surface capacitor is electrically connected to the first sub-wire capacitor and the second sub-wire capacitor, and a maximum length of the first surface capacitor is less than 15 μm.
3. The optical touch display panel according to claim 2, wherein the line width of the wire capacitor is smaller than the maximum length of the first surface capacitor.
4. The optical touch display panel according to claim 2, wherein the wire capacitor includes a second break portion, the second break portion is located between the second sub-wire capacitor and the second transistor, the optical touch display panel further includes a second surface capacitor, the second surface capacitor is located at the second break portion, the second surface capacitor electrically connects the second sub-wire capacitor and the second transistor, and a maximum length of the second surface capacitor is less than 15 μm.
5. The optical touch display panel according to claim 4, wherein the line width of the wire capacitor is smaller than the maximum length of the second surface capacitor.
6. The optical touch display panel according to claim 5, wherein the wire capacitor comprises a third sub-wire capacitor and a third discontinuity, the first discontinuity is located between the first sub-wire capacitor and the third sub-wire capacitor, the third discontinuity is located between the third sub-wire capacitor and the second sub-wire capacitor, the optical touch display panel further comprises a third surface capacitor, the third surface capacitor is located at the third discontinuity, the third surface capacitor electrically connects the third sub-wire capacitor and the second sub-wire capacitor, and a maximum length of the third surface capacitor is less than 15 μm.
7. The optical touch display panel according to claim 6, wherein the line width of the conductive line capacitor is smaller than the maximum length of the third surface capacitor.
8. The optical touch display panel according to claim 7, wherein the wire capacitor comprises a fourth sub-wire capacitor, a fifth sub-wire capacitor and a fourth discontinuity portion, the second discontinuity portion is located between the second sub-wire capacitor and the fourth sub-wire capacitor, the fourth discontinuity portion is located between the fourth sub-wire capacitor and the fifth sub-wire capacitor, the first discontinuity portion is located between the first sub-wire capacitor, the third sub-wire capacitor and the fifth sub-wire capacitor, the optical touch display panel further comprises a fourth surface capacitor, the fourth surface capacitor is located in the fourth discontinuity portion, the fourth surface capacitor electrically connects the fourth sub-wire capacitor and the fifth sub-wire capacitor, and a maximum length of the fourth surface capacitor is less than 15 μm.
9. The optical touch display panel according to claim 8, wherein the line width of the wire capacitor is smaller than the maximum length of the fourth surface capacitor.
10. The optical touch display panel of claim 8, wherein the wire capacitor comprises a sixth sub-wire capacitor, and the sixth sub-wire capacitor is electrically connected to the first surface capacitor and the second surface capacitor.
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US20100214247A1 (en) * 2009-02-20 2010-08-26 Acrosense Technology Co., Ltd. Capacitive Touch Panel
US20100283757A1 (en) * 2009-05-08 2010-11-11 Sintek Photronic Corporation Capacitive touch panel structure with high optical uniformity
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