WO2015184702A1 - 一种触控面板及触控显示装置 - Google Patents

一种触控面板及触控显示装置 Download PDF

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Publication number
WO2015184702A1
WO2015184702A1 PCT/CN2014/086625 CN2014086625W WO2015184702A1 WO 2015184702 A1 WO2015184702 A1 WO 2015184702A1 CN 2014086625 W CN2014086625 W CN 2014086625W WO 2015184702 A1 WO2015184702 A1 WO 2015184702A1
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WIPO (PCT)
Prior art keywords
touch
direction sensing
panel
light source
sensing lines
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Ceased
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PCT/CN2014/086625
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English (en)
French (fr)
Inventor
隆清德
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US14/652,427 priority Critical patent/US9904401B2/en
Publication of WO2015184702A1 publication Critical patent/WO2015184702A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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 OR CALCULATING; 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
    • G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
    • H10F19/50—Integrated devices comprising at least one photovoltaic cell and other types of semiconductor or solid-state components
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04107—Shielding in digitiser, i.e. guard or shielding arrangements, mostly for capacitive touchscreens, e.g. driven shields, driven grounds
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
    • G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
    • G06F2203/04112—Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy

Definitions

  • the present invention relates to the field of touch, and in particular to a touch panel and a touch display device.
  • a touch screen is an input device that allows a user to input a user's instruction by selecting an icon displayed on a screen of an image display or the like directly by hand or object.
  • the touch screen detects the touch point and drives the liquid crystal display according to a command corresponding to the selected icon to achieve a specific display.
  • the existing touch screens are mainly classified into two types, capacitive and electromagnetic, depending on their implementation principles.
  • the capacitive touch screen recognizes the touch operation by the received touch signal (ie, an electrical signal)
  • the electromagnetic touch screen recognizes the touch operation by the received touch signal (ie, the electromagnetic signal of the electromagnetic pointer).
  • the self-capacitive touch screen in the capacitive touch screen as an example, the self-capacitance principle is used to detect the touch position of the finger.
  • a plurality of self-capacitance electrodes arranged in the same layer and independent of each other are disposed in the touch screen, when the human body does not touch the screen.
  • the capacitance of the respective capacitor electrodes is a fixed value.
  • the capacitance of the self-capacitance electrode corresponding to the touch position is a fixed value superimposed on the human body capacitance. Therefore, the touch detection chip is in touch.
  • the time period can determine the touch position by detecting the change in the capacitance value of each capacitor electrode.
  • the number of self-capacitance electrodes can be very large. Taking the area occupied by each self-capacitance electrode as 5mm*5mm, a 5-inch LCD screen requires 264 self-capacitance electrodes. If each self-capacitance electrode is designed to be smaller, there will be more The self-capacitance electrode makes the number of wires connected to the self-capacitance electrode very large.
  • a touch panel includes: a glass substrate; a solar panel disposed on one side of the glass substrate and including a plurality of solar cell modules; n first direction sensing lines and m second directions a sensing line for transmitting electrical energy converted by the solar panel; and a detecting unit for detecting current or voltage of each of the first direction sensing line and each of the second direction sensing lines, and according to the current or voltage change Determine the touch object a touch area of the body; wherein each of the n first direction sensing lines and the m second direction sensing lines are connected in series along a corresponding solar cell module in the direction, and m, n Is a positive integer.
  • a touch display device includes: a display panel and a touch panel according to the first aspect of the present invention, wherein the touch panel is located in a display pixel area of the display panel Directly above, and a plurality of solar cell modules in the touch panel are projected on the pixel electrodes of the display panel.
  • a touch display device includes: a display panel and a touch panel according to the first aspect of the present invention, wherein the touch panel is located above a backlight of the display panel The pixel electrode of the display panel is projected on the solar panel of the touch panel.
  • a touch display device includes: a display panel, a processor, and the touch panel of the first aspect of the present invention, wherein the display panel is independent of the touch The control panel, and the processor pre-stores a correspondence between a display area of the display panel and a touch area of the touch panel.
  • a touch display device includes: a display panel including an upper glass substrate, a pixel electrode, a lower glass substrate, and a backlight; and a touch panel including: a solar panel, located in the Above the backlight of the display panel, and comprising a plurality of solar cell modules; n first direction sensing lines and m second direction sensing lines for transmitting electrical energy converted by the solar panel; and detecting unit for detecting a current or a voltage of each of the first direction sensing line and each of the second direction sensing lines, and determining a touch area of the touch object according to the change of the current or voltage; wherein the n first direction sensing lines and the Each of the m second direction sensing lines will be connected in series along the corresponding solar cell module in the direction, and m, n are positive integers; wherein the pixel electrode of the display panel is projected onto the solar energy of the touch panel On the battery board.
  • the invention utilizes the first direction sensing line and the second direction sensing line of the tandem solar cell module to perform touch sensing positioning on the touch object without introducing other touch sensing devices (for example, self-capacitance electrodes), thereby reducing the number of wire connections, The complexity of the touch screen device is reduced, thereby realizing the weight reduction of the touch screen.
  • touch sensing devices for example, self-capacitance electrodes
  • FIG. 1 is a side view of a touch panel according to an embodiment of the invention.
  • FIG. 2 is a schematic view of a solar panel connected in series using a transverse direction sensing line and a longitudinal direction sensing line in accordance with an embodiment of the present invention
  • FIG. 3 is a schematic diagram of determining a touch area when an external light source is used as a light source according to an embodiment of the invention
  • FIG. 4 is a schematic diagram of determining a touch area when an internal light source is used as a light source according to an embodiment of the invention
  • FIG. 5 is a schematic block diagram of a touch display device according to an embodiment of the invention.
  • FIG. 6 is a schematic structural diagram of a touch display device according to an embodiment of the invention.
  • FIG. 7 is a schematic diagram of determining a touch area based on incident light of an external light source according to an embodiment of the invention.
  • FIG. 8 is a schematic diagram of determining a touch area based on reflected light of an internal light source according to an embodiment of the invention.
  • FIG. 9 is a schematic block diagram of a touch display device including an electrical energy storage device according to an embodiment of the invention.
  • FIG. 10 is a schematic structural diagram of another touch display device according to an embodiment of the invention.
  • the embodiment of the present invention is based on the following principle: when a touch operation is performed, a contact position between the touch object and the touch panel (ie, a touch area) will block the touch panel, resulting in a solar cell module at a corresponding position in the touch panel.
  • the output power changes, and by detecting the position of the solar cell module, the touch area of the touch object can be determined.
  • FIG. 1 is a side view of a touch panel 100 in accordance with an embodiment of the present invention.
  • the touch panel 100 may include a glass substrate 101, a solar cell panel 102, n first direction sensing lines 103, and m second direction sensing lines 104, and a detecting unit (not shown).
  • m, n is a positive integer.
  • the solar panel 102 is located on one side of the glass substrate 101 and may include a plurality of solar cell modules 105.
  • the first direction sensing line 103 and the second direction sensing line 104 will be connected in series along a plurality of solar cell modules 105 in respective directions, and transfer the electrical energy converted by the solar panel 102.
  • the detecting unit detects current or voltage on each of the first direction sensing lines 103 and each of the second direction sensing lines 104, and The touch area of the touch object is determined according to the detected change of current or voltage.
  • the photosensitive surface of the solar cell module 105 is disposed upward to receive light transmitted from the glass substrate 101.
  • the touch object When the touch object is operated on the touch panel, the touch object will block a part of the touch panel 100, and thus the output of the solar cell module 105 in the occluded area will change.
  • the contact position of the touch object with the touch panel 100 is most effective for the occlusion effect of the touch panel 100, and thus the output of those solar cell modules 105 corresponding to the contact position is also most significantly changed.
  • the detecting unit can determine which of the sensing lines have the most significant change in current or voltage by detecting the current or voltage on the first direction sensing line 103 and the second direction sensing line 104 in series with each solar cell module 105, thereby The area enclosed by the sensing line is identified as a touch area.
  • the so-called “induction line” herein may be a normal conductor, that is, it does not have an "induction” function itself, but only serves to output a current or voltage signal of the solar cell module 105.
  • the display panel 110 superimposed with the touch panel 100 is also shown in FIG. 1, which constitute a touch display device (discussed later).
  • the plurality of solar battery modules 105 in the touch panel 100 may not cover all the regions of the solar panel 102 , but may be disposed in a grid shape on the display panel 110 .
  • the opaque area of each of the pixel electrodes 114 corresponds to a position, thereby ensuring that the entire solar panel 102 has a certain light transmittance.
  • each solar cell module 105 may correspond to at least one pixel electrode 114 in the display panel 110, and each pixel electrode 114 uniquely corresponds to one solar cell module 105. In this way, the number of the first sensing line and the second sensing line can be further reduced under the premise of ensuring a certain touch precision.
  • the internal structure of the touch panel 100 shown in FIG. 1 is merely exemplary.
  • the solar panel 102 can also be attached to the glass substrate 101, and the solar cell module 105 is disposed on the lower surface of the solar panel 102, except that the photosensitive surface of the solar cell module 105 should still face upward. Settings.
  • FIG. 2 is a schematic diagram of a solar panel in series using a lateral direction sensing line and a longitudinal direction sensing line in accordance with an embodiment of the present invention.
  • the plurality of solar cell modules 205 on the solar panel 202 are connected in series by the lateral direction sensing line 204 and the longitudinal direction sensing line 203, wherein the electrical energy converted by each solar cell module 205 is shared by the lateral direction sensing line 204 and the longitudinal direction sensing line 203. transmission.
  • the first direction sensing line and the second direction sensing line may also be set to intersect at other angles.
  • the light that strikes the touch panel usually comes from two sources: an external source and an internal source.
  • the external light source is an external light source in a space in which the touch panel (or the touch display device) is located, such as a light in a room or outdoor daylight, and the like.
  • the internal light source generally refers to a backlight of a display panel that is superimposed with the touch panel.
  • embodiments of the present invention are not limited thereto.
  • an internal light source dedicated to the touch panel may also be provided.
  • the touch panel needs to determine whether to use an external light source or an internal light source as its light source.
  • an external light source can provide a higher level of illumination than an internal light source, and it is also noted that in the previous embodiments, the photosensitive surface of the solar cell module is disposed upward, while the internal light source (eg, the backlight of the display panel) is typically It is placed under the solar panel, so the external light source often plays a leading role in the photoelectric conversion efficiency of the solar cell module.
  • the determination can be made according to the overall illumination level, that is, whether the external light source is determined according to whether the sum of the current or voltage on each of the first direction sensing line and each of the second direction sensing lines is greater than a corresponding threshold.
  • an internal light source as a light source.
  • the sum of the currents of the first direction sensing line and each of the second direction sensing lines is greater than a predetermined threshold, indicating that the overall light level provided by the external light source and the internal light source is very high, thereby inferring the external light source provides The light is sufficient, so you can be sure to use the external light source as the light source; otherwise, you can use the internal light source as the light source.
  • the illumination level of the external source is too low, such as in a completely dark environment, it makes sense to use the internal source as a source of light.
  • a change in the usage scene is taken into consideration (for example, the user moves from a well-lit position to a position with poor visibility during use of the touch panel, or the external light source is turned on or off at the same use position, or The internal light source is turned on or off during use, etc.), in order to achieve a more accurate judgment, different thresholds may be set respectively for whether the internal light source is illuminated or not.
  • the internal light source When the internal light source is not illuminated, if it is determined that the sum of the current intensities of the first direction sensing lines and the second direction sensing lines is greater than the threshold of the first current intensity, determining that the external light source is the used light source, if each The sum of the current intensities of the one direction sensing line and each of the second direction sensing lines is not greater than the threshold of the first current intensity, determining whether the internal light source is a used light source; or, if determining the first direction sensing line and each second direction sensing If the sum of the magnitudes of the voltages on the line is greater than the first voltage threshold, determining that the external light source is the light source, if it is determined that the sum of the magnitudes of the voltages of the first direction sensing lines and the second direction sensing lines is not greater than the first voltage threshold, then Make sure the internal light source is using the light source.
  • the internal light source In the case that the internal light source is illuminated, if it is determined that the sum of the current intensities of the first direction sensing lines and the second direction sensing lines is greater than the second current threshold, determining that the external light source is the used light source, if each first is determined The sum of the current intensity of the direction sensing line and the second direction sensing line is not greater than the second current threshold, determining whether the internal light source is a used light source, or if determining the first direction sensing line and each of the second direction sensing lines If the sum of the voltage magnitudes is greater than the second voltage threshold, determining that the external light source is a light source, and determining that the sum of the magnitudes of the voltages of the first direction sensing lines and the second direction sensing lines is not greater than the second voltage threshold, determining the internal light source To use the light source.
  • the second threshold should be greater than the first threshold.
  • the previous determination process is preferably performed when the touch object does not touch the touch panel.
  • the touch object when the touch object touches the touch panel, the touch object will block the external light incident on the touch panel, and the outside of the touch object is in contact with the touch panel. The light is completely blocked, so the photoelectric conversion efficiency of the solar cell module corresponding to the contact position is the lowest.
  • the light source is the internal light source, when the touch object touches the touch panel, the touch object reflects the light emitted from the internal light source, and the reflected light intensity at the position where the touch object is in contact with the touch panel is the strongest. Therefore, the solar cell module corresponding to the contact position has the highest photoelectric conversion rate.
  • the touch area can be located according to different changes in the current or voltage output by the first direction sensing line and the second direction sensing line.
  • the detecting unit determines at least one sensing line and each second direction sensing line with a smaller current in each of the first direction sensing lines. At least one sensing line with a small current in the middle, and a region defined by the sensing line with a smaller current in two directions is used as a touch area of the touch object; or, determining a voltage in each of the first direction sensing lines is small. The sensing line and the sensing line with a smaller voltage in each of the second direction sensing lines, and the determined area surrounded by the sensing lines with smaller voltages in the two directions are used as the touch areas of the touch object.
  • FIG. 3 is a schematic diagram of determining a touch area when an external light source is used as a light source according to an embodiment of the invention, wherein the first direction sensing line is a lateral sensing line, and the second direction sensing line is a longitudinal sensing line.
  • the current on the x 2 to x 6 in the lateral sensing line changes, wherein the currents of the lateral sensing lines x 4 and x 5 are small, and the longitudinal sensing lines are on the y 2 to y 9
  • the current also changes, wherein the currents of the longitudinal sensing lines y 7 , y 8 , y 9 are small, so that the lateral sensing lines x 4 and x 5 and the longitudinal sensing lines y 7 , y 8 of the touch object on the touch panel are determined,
  • the areas 301 and 302 enclosed by y 9 are touch areas.
  • the detecting unit determines at least one sensing line with a larger current in each of the first direction sensing lines and a current in each second direction sensing line. a larger at least one sensing line, and the determined area enclosed by the sensing current in the two directions is used as the touch area of the touch object; or, determining that the voltage in each of the first direction sensing lines is at least large An sensing line and at least one sensing line having a larger voltage on each of the second direction sensing lines, and an area surrounded by the sensing lines having a larger voltage in the two directions is used as a touch area of the touch object.
  • FIG. 4 is a schematic diagram of determining a touch area when an internal light source is used as a light source according to an embodiment of the invention, wherein the first direction sensing line is a lateral sensing line, and the second direction sensing line is a longitudinal sensing line.
  • the current on the x 2 to x 6 in the lateral sensing line changes, wherein the currents of the lateral sensing lines x 4 and x 5 are larger, and the longitudinal sensing lines are on the y 2 to y 9
  • the current also changes, wherein the currents of the longitudinal sensing lines y 7 , y 8 , y 9 are relatively large, so that the lateral sensing lines x 4 and x 5 and the longitudinal sensing lines y 7 , y 8 of the touch object on the touch panel are determined,
  • the areas 401 and 402 enclosed by y 9 are touch areas.
  • determining which of the sense lines in each of the sense lines is smaller or larger may be an absolute criterion, such as determining whether the current or voltage is less than or greater than a corresponding predetermined threshold.
  • determining whether the current or voltage of the sensing lines in each of the sensing lines is small or large may be based on a relative standard, such as determining whether the magnitude of the change in current or voltage is less than or greater than a corresponding predetermined threshold. For example, if the magnitude of the current or voltage reduction on a sensing line is greater than a predetermined threshold, it is determined that the current or voltage of the sensing line is small; if the magnitude of the current or voltage increase on a sensing line is greater than a predetermined threshold, Then it is determined that the current or voltage of the sensing line is large.
  • the determined number of the first direction sensing line and/or the second direction sensing line is one (ie, there is no area enclosed by the sensing lines in the two directions), then The area corresponding to the solar cell module in which the first direction sensing line and the second direction sensing line are connected in series may be used as the touch area.
  • FIG. 5 is a schematic block diagram of a touch display device according to an embodiment of the invention.
  • the touch display device may include a display panel 510 , a touch panel 500 , and a processor 520 .
  • FIG. 6 is a schematic structural diagram of a touch display device according to an embodiment of the invention.
  • the touch panel 500 may be located outside the display pixel area of the display panel 510 for displaying an image, and the plurality of solar battery modules 605 in the touch panel 500 may be orthographically projected on the display panel 510 in a grid shape.
  • the projection of each solar cell module 605 may correspond to at least one pixel electrode 614 in the display panel 510, and each pixel electrode 614 uniquely corresponds to a projection of one solar cell module 605.
  • the display panel 510 may include an upper glass substrate 611, a lower glass substrate 612, a pixel electrode 614 on the lower glass substrate 612, a common electrode on the pixel region, and a color filter layer (not shown) and a lower glass.
  • FIG. 7 is a schematic diagram of determining a touch area based on incident light of an external light source according to an embodiment of the invention.
  • the touch object ie, the "hand” shown in the figure
  • the touch object blocks the external light 701 incident on the touch panel 700, wherein the touch object contacts the touch panel 700.
  • the external light at the position 702 ie, the touch area
  • the external light at the projected position 703 of the touch object 700 on the touch panel 700 is partially blocked. Therefore, the photoelectric conversion efficiency of the solar cell module corresponding to the touch region is most reduced, resulting in a small current or voltage of the corresponding first direction sensing line and the second direction sensing line.
  • the processor determines a display area on the corresponding display panel 710 according to the touch area of the touch panel, and determines a control command corresponding to the display area, thereby performing a corresponding operation according to the control command.
  • FIG. 8 is a schematic diagram of determining a touch area based on reflected light of an internal light source (eg, a backlight of a display panel) in accordance with an embodiment of the present invention.
  • an internal light source eg, a backlight of a display panel
  • the touch object reflects the light 801 emitted from the backlight of the display panel back to the touch panel, wherein the touch object and the touch panel
  • the light intensity at the contact position 802 ie, the touch area
  • the light reflection intensity of the other parts of the touch object at the projection position 803 on the touch panel is second.
  • the processor determines a display area of the corresponding display panel according to the touch area of the touch panel, and determines a display area pair.
  • the control command should be executed to perform the corresponding operation according to the control command.
  • FIG. 9 is a schematic block diagram of another touch display device according to an embodiment of the invention.
  • the touch display device can include an electrical energy storage device 901 for storing electrical energy.
  • the touch panel 900 can transmit the converted electrical energy to the electrical energy storage device 901 through the first direction sensing line and the second direction sensing line.
  • the touch panel 900 detects that the electrical energy storage device 901 is in a full state, the converted electrical energy can be directly supplied to the display panel 910. Therefore, the embodiment not only simplifies the structure of the touch panel, but also provides power to the touch display device, thereby improving the standby time of the touch display device.
  • FIG. 10 is a schematic structural diagram of a touch display device according to another embodiment of the present invention.
  • the touch display device may include a display panel 1100, a processor (not shown), and a touch panel 1000.
  • the touch panel 1000 can be the same as that of the previous embodiment.
  • the touch panel 1000 may include a glass substrate 1001, a solar panel 1002, n first direction sensing lines 1003, and m second direction sensing lines 1004, and a detecting unit (not shown).
  • m, n is a positive integer.
  • the display panel 1100 may include a backlight 1103, a lower glass substrate 1102, a pixel electrode 1104 formed on the lower glass substrate 1102, a common electrode on the pixel region, and a color filter layer (not shown), formed on the common electrode, and The upper glass substrate 1101 on the color filter layer.
  • This embodiment is different from the previous embodiment in that the touch panel 1000 is formed between the backlight 1103 and the lower glass substrate 1102 of the display panel 1100.
  • each solar cell module 1005 may correspond to a projection of at least one pixel electrode 1104 in the display panel 1100, and the projection of each pixel electrode 1104 uniquely corresponds to one solar cell module 1005.
  • the photosensitive surface of the solar cell module 1005 is disposed upward to receive light transmitted from the upper display panel structure and the glass substrate 1001 of the touch panel itself, for example, light emitted from an external light source or an internal light source reflected by the touch object. Light.
  • the solar panel 1002 in the touch panel 1000 is caused by the display function of the display panel 1100 as compared with the previous embodiment. The impact is even smaller.
  • the plurality of solar cell modules 1005 may be disposed in a grid shape at positions corresponding to the light transmissive regions of each of the pixel electrodes 1104 of the display panel 1100, as shown in FIG.
  • the internal structure of the touch panel 1000 shown in FIG. 10 is merely exemplary.
  • the solar panel 1002 may also be attached to the glass substrate 1001, and the solar battery module 1005 may be disposed on the lower surface of the solar panel 1002, except that the photosensitive surface of the solar cell module 1005 should still face upward.
  • the glass substrate 1001 in the touch panel 1000 may also be omitted, that is, the solar panel 1002 of the touch panel may be directly disposed on the lower side of the lower glass substrate 1102.
  • the touch display device can include a display panel, a processor, and a touch panel.
  • the difference between this embodiment and the previous embodiment is that the touch panel can be independent of the display panel, such as a display-independent touch panel disposed on the keyboard area of the notebook computer.
  • the processor may pre-store the correspondence between the display area of the display panel and the touch area of the touch panel.
  • the touch panel determines a sliding track of the touch object according to the touch area of the touch object, and the processor displays the corresponding relationship between the display area of the display panel and the touch area of the touch panel according to the determined sliding track and the display panel.
  • the sliding track of the touch object is displayed on the display object or the display object on the display panel is controlled accordingly, for example, the cursor is moved.

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  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
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Abstract

一种触控面板（100）及触控显示装置，所述触控面板（100）包括玻璃基板（101）、位于玻璃基板（101）一侧并且包括多个太阳能电池模块（105）的太阳能电池板（102）、用于传输所述太阳能电池板（102）转换的电能的n条第一方向感应线（103）和m条第二方向感应线（104），和用于检测各第一方向感应线（103）和各第二方向感应线（104）上的电流或电压并根据所述电流或电压的变化确定触控物体的触控区域的检测单元，其中，所述n条第一方向感应线（103）和所述m条第二方向感应线（104）中的每一条将沿着该方向上的相应的太阳能电池模块（105）进行串联，并且m，n为正整数。触控面板（100）减少了导线连接的数量，实现了触摸屏的轻型化。

Description

一种触控面板及触控显示装置 技术领域
本发明涉及触控领域，尤其涉及一种触控面板及触控显示装置。
背景技术
触摸屏是允许用户直接用手或物体，通过选择显示在图像显示器等的屏幕上的图标来输入用户指令的输入设备。用户用手或物体直接与触摸屏接触时，触摸屏检测到触摸点并根据所选图标对应的命令来驱动液晶显示器，以实现特定的显示。
现有的触摸屏，根据其实现原理的不同，主要分为电容式和电磁式两种。其中，电容式触摸屏通过接收的触摸信号(即，电信号)来识别触摸操作，电磁式触摸屏通过接收的触摸信号(即，电磁指针的电磁信号)来识别触摸操作。以电容式触摸屏中的自电容触摸屏为例，利用自电容的原理实现检测手指触摸位置，具体为：在触摸屏中设置多个同层设置且相互独立的自电容电极，当人体未触碰屏幕时，各自电容电极所承受的电容为一固定值，而当人体触碰屏幕时，触碰位置对应的自电容电极所承受的电容为固定值叠加人体电容，因此，触控侦测芯片在触控时间段通过检测各自电容电极的电容值变化可以判断出触控位置。在具体实施时，自电容电极的数量会非常多。以每个自电容电极所占的面积为5mm*5mm为例，5寸的液晶显示屏就需要264个自电容电极，若将每个自电容电极设计的更小一些，则会有更多的自电容电极，使得与自电容电极连接的导线数量非常多。
因此，现有技术的触摸屏中存在数量较多的电极和导线，导致装置复杂。
发明内容
根据本发明的第一方面，提供一种触控面板，包括：玻璃基板；太阳能电池板，位于玻璃基板一侧并且包括多个太阳能电池模块；n条第一方向感应线和m条第二方向感应线，用于传输所述太阳能电池板转换的电能；以及检测单元，用于检测各第一方向感应线和各第二方向感应线上的电流或电压，并根据所述电流或电压的变化确定触控物 体的触控区域；其中，所述n条第一方向感应线和所述m条第二方向感应线中的每一条将沿着该方向上的相应的太阳能电池模块进行串联，并且m，n为正整数。
根据本发明的第二方面，提供一种触控显示装置，包括：显示面板和本发明实施例的第一方面所述的触控面板，其中，所述触控面板位于显示面板的显示像素区正上方，且触控面板中的多个太阳能电池模块正投影在显示面板的像素电极上。
根据本发明的第三方面，提供一种触控显示装置，包括：显示面板和本发明实施例的第一方面所述的触控面板，其中，所述触控面板位于显示面板的背光源上方，显示面板的像素电极正投影在触控面板的太阳能电池板上。
根据本发明的第四方面，提供一种触控显示装置，包括：显示面板、处理器以及本发明实施例的第一方面所述的触控面板，其中，所述显示面板独立于所述触控面板，并且所述处理器预先存储显示面板的显示区域与触控面板的触控区域的对应关系。
根据本发明的第五方面，提供一种触控显示装置，包括：显示面板，包括上玻璃基板、像素电极、下玻璃基板和背光源；以及触控面板，包括：太阳能电池板，位于所述显示面板的背光源上方，并且包括多个太阳能电池模块；n条第一方向感应线和m条第二方向感应线，用于传输所述太阳能电池板转换的电能；以及检测单元，用于检测各第一方向感应线和各第二方向感应线上的电流或电压，并根据所述电流或电压的变化确定触控物体的触控区域；其中，所述n条第一方向感应线和所述m条第二方向感应线中的每一条将沿着该方向上的相应的太阳能电池模块进行串联，并且m，n为正整数；其中，显示面板的像素电极正投影在触控面板的太阳能电池板上。
本发明利用串联太阳能电池模块的第一方向感应线和第二方向感应线对触控物体进行触摸感应定位，无需引入其他触摸感应装置(例如，自电容电极)，因而减少了导线连接的数量，降低了触摸屏装置的复杂程度，从而实现了触摸屏的轻型化。
附图说明
图1为根据本发明实施例的一种触控面板的侧视图；
图2为根据本发明实施例利用横向方向感应线和纵向方向感应线串联太阳能电池板的示意图；
图3为根据本发明实施例将外部光源作为使用光源时确定触控区域的示意图；
图4为根据本发明实施例将内部光源作为使用光源时确定触控区域的示意图；
图5为根据本发明实施例的一种触控显示装置的示意框图；
图6为根据本发明实施例的一种触控显示装置的结构示意图；
图7为根据本发明实施例基于外部光源的入射光线确定触控区域的示意图；
图8为根据本发明实施例基于内部光源的反射光线确定触控区域的示意图；
图9为根据本发明实施例的一种包括电能存储装置的触控显示装置的示意框图；
图10为根据本发明实施例的另一种触控显示装置的结构示意图。
具体实施方式
本发明的实施例基于以下原理：进行触摸操作时，触控物体与触摸面板之间的接触位置(即触控区域)将对触控面板构成遮挡，导致触控面板中相应位置的太阳能电池模块输出的电能发生变化，通过检测这样的太阳能电池模块所对应的位置，即可确定触控物体的触控区域。
下面结合附图对本发明实施例进行详细描述。
图1是根据本发明实施例的一种触控面板100的侧视图。如图1所示，触控面板100可以包括玻璃基板101、太阳能电池板102、n条第一方向感应线103和m条第二方向感应线104，以及检测单元(未示出)。m，n为正整数。
太阳能电池板102位于玻璃基板101一侧，并且可以包括多个太阳能电池模块105。第一方向感应线103和第二方向感应线104将沿着各自方向上的多个太阳能电池模块105进行串联，并传输太阳能电池板102转换的电能。当触控物体接触玻璃基板101后，检测单元检测各第一方向感应线103和各第二方向感应线104上的电流或电压，并 根据所检测的电流或电压的变化来确定触控物体的触控区域。
具体来说，太阳能电池模块105的感光面朝上设置以接收从玻璃基板101透射进来的光线。当触控物体在触控面板上进行操作时，该触控物体将遮挡该触控面板100的部分区域，因此被遮挡区域内的太阳能电池模块105的输出将发生变化。特别地，触控物体与触控面板100的接触位置对该触控面板100的遮挡效果最为明显，因此与该接触位置对应的那些太阳能电池模块105的输出的变化也最为显著。检测单元通过检测与各太阳能电池模块105相串联的第一方向感应线103和第二方向感应线104上的电流或电压，可确定哪些感应线上的电流或电压的变化最为显著，从而将这些感应线所围成的区域识别为触控区域。应当理解，此处所谓“感应线”可以是普通导线，也即其本身并无“感应”功能，而仅用于输出太阳能电池模块105的电流或电压信号。
此外，图1中还示出了与触控面板100相叠加的显示面板110，二者构成触控显示装置(后面讨论)。需要说明的是，为了不妨碍显示面板110的显示功能，触控面板100中的多个太阳能电池模块105可以不覆盖太阳能电池板102的全部区域，而是呈网格状设置在与显示面板110的每个像素电极114的不透光区域相应的位置，从而保证整个太阳能电池板102具有一定的透光率。可选地，每个太阳能电池模块105可以对应显示面板110中的至少一个像素电极114，并且每个像素电极114唯一对应一个太阳能电池模块105。这样，在保证一定的触控精度的前提下，可以进一步减少第一感应线和第二感应线的数目。
需要指出，图1所示的触控面板100的内部结构仅仅是示例性的。举例来说，太阳能电池板102也可以与玻璃基板101相贴合，而将太能电池模块105设置在太阳能电池板102的下表面，只不过此时太阳能电池模块105的感光面仍然应当朝上设置。
图2为根据本发明实施例利用横向方向感应线和纵向方向感应线串联太阳能电池板的示意图。太阳能电池板202上的多个太阳能电池模块205通过横向方向感应线204和纵向方向感应线203串联，其中，每个太阳能电池模块205转化的电能通过横向方向感应线204和纵向方向感应线203共同传输。然而，在其他实施例中，第一方向感应线和第二方向感应线也可以被设定为以其他角度相交。
在实际使用过程中，照射到触控面板上的光通常来自两种光源：外部光源和内部光源。外部光源即触摸面板(或触控显示装置)所处空间中的外界光源，例如房间中的灯光或户外的日光，等等。内部光源通常是指与触控面板一起叠加使用的显示面板的背光源，但本发明的实施例不限于此，例如，也可以设置触控面板专用的内部光源。
无论如何，触控面板需要确定将外部光源还是内部光源作为其使用光源。通常情况下，外部光源能够比内部光源提供更高的光照水平，并且还注意到在前面的实施例中，太阳能电池模块的感光面朝上设置，而内部光源(例如显示面板的背光源)通常置于太阳能电池板的下方，因此对于太阳能电池模块的光电转换效率而言，外部光源常常起主导作用。基于这种考虑，可以根据整体的光照水平来进行这样的确定，即根据各第一方向感应线和各第二方向感应线上的电流或电压之和是否大于相应的阈值，来确定将外部光源或内部光源作为使用光源。举例来说，当各第一方向感应线和各第二方向感应线上的电流之和大于预定阈值时，表明外部光源和内部光源所提供的整体光照水平非常高，由此推断外部光源提供的光线充足，因此可以确定将外部光源作为使用光源；反之，则可以将内部光源作为使用光源。应当理解，当外部光源的光照水平太低，例如在完全黑暗的环境中，将内部光源作为使用光源是有意义的。
进一步地，如果考虑到使用场景的改变(例如，用户在使用触控面板的过程中从光线充足的位置移动到能见度较差的位置，或者在同一使用位置外界光源被点亮或关闭，又或者内部光源在使用过程中被点亮或关闭，等等)，为实现更为准确的判断，可以针对内部光源是否被点亮两种情况分别设置不同的阈值。
当内部光源未被点亮时，若确定各第一方向感应线和各第二方向感应线上的电流强度之和大于第一电流强度的阈值，则确定外部光源为使用光源，若确定各第一方向感应线和各第二方向感应线上的电流强度之和不大于第一电流强度的阈值，则确定内部光源为使用光源；或者，若确定各第一方向感应线和各第二方向感应线上的电压大小之和大于第一电压阈值，则确定外部光源为使用光源，若确定各第一方向感应线和各第二方向感应线上的电压大小之和不大于第一电压阈值，则确定内部光源为使用光源。
在内部光源被点亮的情况下，若确定各第一方向感应线和各第二方向感应线上的电流强度之和大于第二电流阈值，则确定外部光源为使用光源，若确定各第一方向感应线和各第二方向感应线上的电流强度之和不大于第二电流阈值，则确定内部光源为使用光源，或者，若确定各第一方向感应线和各第二方向感应线上的电压大小之和大于第二电压阈值，则确定外部光源为使用光源，若确定各第一方向感应线和各第二方向感应线上的电压大小之和不大于第二电压阈值，则确定内部光源为使用光源。
显然，在内部光源被点亮的情况下，由于该内部光源提供了一个基础光照水平，因此，第二阈值应大于第一阈值。另外，为排除触控物体在触控操作时对光照条件造成影响，前面的确定过程优选地在触控物体没有接触触控面板时进行。
一般来说，如果使用光源为外部光源，则当触控物体接触触控面板时，触控物体将遮挡入射到触控面板的外界光线，其中触控物体与触控面板相接触位置处的外界光线被完全遮挡，因此，该接触位置对应的太阳能电池模块的光电转化效率最低。如果使用光源为内部光源，则当触控物体接触触控面板时，触控物体将从内部光源发射出来的光线进行反射，其中触控物体与触控面板相接触位置处的反射光线强度最强，因此，该接触位置对应的太阳能电池模块的光电转化率最高。由此，针对使用光源为外部光源或内部光源的不同情况，可以根据第一方向感应线和第二方向感应线输出的电流或电压的不同变化情况来定位触摸区域。
具体来说，如果检测单元确定外部光源为使用光源，则当触控物体接触触控面板后，检测单元确定各第一方向感应线中电流较小的至少一条感应线和各第二方向感应线中电流较小的至少一条感应线，并将确定的两个方向的电流较小的感应线围成的区域作为触控物体的触控区域；或，确定各第一方向感应线中电压较小的感应线和各第二方向感应线中电压较小的感应线，并将确定的两个方向的电压较小的感应线围成的区域作为触控物体的触控区域。
图3为根据本发明实施例将外部光源作为使用光源时确定触控区域的示意图，其中以第一方向感应线为横向感应线，第二方向感应线为纵向感应线为例。当触控物体接触触控面板后，横向感应线中x2～x6 上的电流发生变化，其中横向感应线x4和x5的电流较小，纵向感应线中y2～y9上的电流也发生变化，其中纵向感应线y7，y8，y9的电流较小，因此确定触控物体在触控面板上横向感应线x4和x5与纵向感应线y7，y8，y9所围成的区域301和302为触控区域。
否则，如果检测单元确定内部光源为使用光源，则当触控物体接触触控面板后，检测单元确定各第一方向感应线上电流较大的至少一条感应线和各第二方向感应线上电流较大的至少一条感应线，并将确定的两个方向的电流较大的感应线围成的区域作为触控物体的触控区域；或，确定各第一方向感应线上电压较大的至少一条感应线和各第二方向感应线上电压较大的至少一条感应线，并将确定的两个方向的电压较大的感应线围成的区域作为触控物体的触控区域。
图4为根据本发明实施例将内部光源作为使用光源时确定触控区域的示意图，其中以第一方向感应线为横向感应线，第二方向感应线为纵向感应线为例。当触控物体接触触控面板后，横向感应线中x2～x6上的电流发生变化，其中横向感应线x4和x5的电流较大，纵向感应线中y2～y9上的电流也发生变化，其中纵向感应线y7，y8，y9的电流较大，因此确定触控物体在触控面板上横向感应线x4和x5与纵向感应线y7，y8，y9所围成的区域401和402为触控区域。
在一个实施例中，确定各感应线中哪些感应线的电流或电压较小或较大可以采用绝对标准，例如判断电流或电压是否小于或大于相应的预定阈值。
在另一个实施例中，确定各感应线中哪些感应线的电流或电压较小或较大可以采用相对标准，例如判断电流或电压的变化幅度是否小于或大于相应的预定阈值。例如，若某条感应线上的电流或电压减小的幅度大于预定阈值，则确定该感应线的电流或电压较小；若某条感应线上的电流或电压增大的幅度大于预定阈值，则确定该感应线的电流或电压较大。
另外，应当理解，如果所确定的第一方向感应线和/或第二方向感应线的条数为一条(即，不存在由两个方向上的感应线所“围成”的区域)，则可以将这些第一方向感应线和第二方向感应线共同串联的太阳能电池模块所对应的区域作为触控区域。
下面结合附图进一步说明根据本发明实施例的触控面板与显示面 板一起构成的触控显示装置的工作原理。
图5为根据本发明实施例的一种触控显示装置的示意框图。如图5所示，触控显示装置可以包括显示面板510、触控面板500和处理器520。
图6为根据本发明实施例的一种触控显示装置的结构示意图。触控面板500可以位于显示面板510用于显示图像的显示像素区外侧，且触控面板500中的多个太阳能电池模块605可以呈网格状正投影在显示面板510上。可选地，每个太阳能电池模块605的投影可以对应显示面板510中的至少一个像素电极614，且每个像素电极614唯一对应一个太阳能电池模块605的投影。另外，显示面板510可以包括上层玻璃基板611、下层玻璃基板612、位于下层玻璃基板612上的像素电极614、位于像素区上的公共电极以及彩色滤光片层(未示出)和位于下玻璃基板612下方的背光源613。
图7为根据本发明实施例基于外部光源的入射光线确定触控区域的示意图。当触控物体(即图中所示的“手”)接触触控面板700时，该触控物体遮挡入射到触控面板700的外界光线701，其中触控物体与触控面板700相接触的位置702(即触控区域)处的外界光线被完全遮挡，而触控物体其他部位在触控面板700上的投影位置703处的外界光线被部分遮挡。因此，触控区域对应的太阳能电池模块的光电转换效率下降最多，导致对应的第一方向感应线和第二方向感应线上的电流或电压较小。处理器根据触控面板的触控区域确定对应的显示面板710上的显示区域，并确定显示区域对应的控制命令，从而根据控制命令执行对应的操作。
图8为根据本发明实施例基于内部光源(例如，显示面板的背光源)的反射光线确定触控区域的示意图。当触控物体(即图中所示的“手”)接触显示面板后，该触控物体将从显示面板的背光源发射出来的光线801反射回触控面板，其中触控物体与触控面板相接触的位置802(即触控区域)处的光线反射强度最强，而触控物体的其他部位在触控面板上的投影位置803处的光线反射强度次之。因此，触控区域对应的太阳能电池模块的光电转换效率提高最多，导致对应的第一方向感应线和第二方向感应线上的电流和电压较大。处理器根据触控面板的触控区域确定对应的显示面板的显示区域，并确定显示区域对 应的控制命令，从而根据控制命令执行对应的操作。
图9为根据本发明实施例的另一种触控显示装置的示意框图。触控显示装置可以包括电能存储装置901，用于存储电能。触控面板900可以将转化的电能通过第一方向感应线和第二方向感应线传输至电能存储装置901中。当触控面板900检测到电能存储装置901为充满状态时，则可以将转换的电能直接供给显示面板910。因此，该实施例不但简化了触控面板的结构，而且还可以为触控显示装置提供电能，进而提高触控显示装置的待机时长。
图10示出根据本发明另一实施例的一种触控显示装置的结构示意图。该触控显示装置可以包括显示面板1100、处理器(未示出)和触控面板1000。
触控面板1000的结构可以与前面的实施例相同。如图所示，触控面板1000可以包括玻璃基板1001、太阳能电池板1002、n条第一方向感应线1003和m条第二方向感应线1004，以及检测单元(未示出)。m，n为正整数。
显示面板1100可以包括背光源1103、下玻璃基1102、形成于下玻璃基板1102上的像素电极1104，位于像素区上的公共电极以及彩色滤光片层(未示出)、形成于公共电极以及彩色滤光片层上的上层玻璃基板1101。
本实施例与前面的实施例不同之处在于：触控面板1000形成于显示面板1100的背光源1103和下玻璃基板1102之间。
具体来说，显示面板1100的像素电极1104投影在触控面板1000的太阳能电池板1002上。可选地，每个太阳能电池模块1005可以对应显示面板1100中的至少一个像素电极1104的投影，并且每个像素电极1104的投影唯一对应一个太阳能电池模块1005。太阳能电池模块1005的感光面朝上设置，以接收从上方的显示面板结构和触控面板自身的玻璃基板1001透射进来的光线，例如，从外部光源发出的光或者由触控物体反射的内部光源的光。
在本实施例中，由于触控面板1000被设置在显示面板1100的像素区下方，因此，与前面的实施例相比，触控面板1000中的太阳能电池板1002对于显示面板1100的显示功能造成的影响更小。为了使得太阳能电池板1002上的太阳能电池模块1005能够接收外部光源的入 射光或触控物体反射的内部光源的光，多个太阳能电池模块1005可以呈网格状设置在与显示面板1100的每个像素电极1104的透光区域相应的位置，如图10所示。
与前面的实施例类似，图10中所示的触控面板1000的内部结构仅仅是示例性的。举例来说，太阳能电池板1002也可以与玻璃基板1001相贴合，而将太能电池模块1005设置在太阳能电池板1002的下表面，只不过此时太阳能电池模块1005的感光面仍然应当朝上设置。可选地，由于存在显示面板1100的下玻璃基板1102，触控面板1000中的玻璃基板1001也可以被省略，即触控面板的太阳能电池板1002可以直接设置在下玻璃基板1102的下侧。
本发明实施例提供了又一种触控显示装置。该触控显示装置可以包括显示面板、处理器和触控面板。本实施例与前面实施例的不同之处在于：触控面板可以独立于显示面板，如笔记本电脑上设置于键盘区域的、独立于显示器的触摸板。
在该实施例中，处理器可以预先存储显示面板的显示区域与触控面板的触控区域的对应关系。触控面板根据触控物体的触控区域确定触控物体的滑动轨迹，处理器根据确定的滑动轨迹以及所存储的显示面板的显示区域与触控面板的触控区域的对应关系，在显示面板上显示触控物体的滑动轨迹或者对显示面板上的显示对象进行相应的控制，例如，对光标进行移动。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于所附权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (17)

  1. 一种触控面板，包括：
    玻璃基板；
    太阳能电池板，位于玻璃基板一侧并且包括多个太阳能电池模块；
    n条第一方向感应线和m条第二方向感应线，用于传输所述太阳能电池板转换的电能；以及
    检测单元，用于检测各第一方向感应线和各第二方向感应线上的电流或电压，并根据所述电流或电压的变化确定触控物体的触控区域；
    其中，所述n条第一方向感应线和所述m条第二方向感应线中的每一条将沿着各自方向上的多个太阳能电池模块进行串联，并且m，n为正整数。
  2. 如权利要求1所述的触控面板，其中，所述检测单元还用于：
    确定各第一方向感应线和各第二方向感应线上的电流或电压之和是否大于相应的阈值，并进而确定将外部光源或内部光源作为使用光源。
  3. 如权利要求2所述的触控面板，其中，所述检测单元具体用于：
    在内部光源未被点亮的情况下，若确定各第一方向感应线和各第二方向感应线上的电流强度之和大于第一电流阈值，则确定外部光源为使用光源，若确定各第一方向感应线和各第二方向感应线上的电流强度之和不大于第一电流阈值，则确定内部光源为使用光源，或者，若确定各第一方向感应线和各第二方向感应线上的电压大小之和大于第一电压阈值，则确定外部光源为使用光源，若确定各第一方向感应线和各第二方向感应线上的电压大小之和不大于第一电压阈值，则确定内部光源为使用光源；或者
    在内部光源被点亮的情况下，若确定各第一方向感应线和各第二方向感应线上的电流强度之和大于第二电流阈值，则确定外部光源为使用光源，若确定各第一方向感应线和各第二方向感应线上的电流强度之和不大于第二电流阈值，则确定内部光源为使用光源，或者，若确定各第一方向感应线和各第二方向感应线上的电压大小之和大于第二电压阈值，则确定外部光源为使用光源，若确定各第一方向感应线和各第二方向感应线上的电压大小之和不大于第二电压阈值，则确定 内部光源为使用光源。
  4. 如权利要求2所述的触控面板，其中，当确定外部光源为使用光源时，所述检测单元操作用于：
    确定各第一方向感应线中电流较小的至少一条感应线和各第二方向感应线中电流较小的至少一条感应线，并将确定的两个方向的电流较小的至少一条感应线围成的区域作为触控物体的触控区域；或，
    确定各第一方向感应线中电压较小的至少一条感应线和各第二方向感应线中电压较小的至少一条感应线，并将确定的两个方向的电压较小的至少一条感应线围成的区域作为触控物体的触控区域；
    当确定内部光源为使用光源时，所述检测单元操作用于：
    确定各第一方向感应线中电流较大的至少一条感应线和各第二方向感应线中电流较大的至少一条感应线，并将确定的两个方向的电流较大的至少一条感应线围成的区域作为触控物体的触控区域；或，
    确定各第一方向感应线中电压较大的至少一条感应线和各第二方向感应线中电压较大的至少一条感应线，并将确定的两个方向的电压较大的至少一条感应线围成的区域作为触控物体的触控区域。
  5. 如权利要求4所述的触控面板，其中，各第一方向感应线和各第二方向感应线中电流或电压较小的感应线是指电流或电压小于预定阈值的感应线，并且，各第一方向感应线和各第二方向感应线中电流或电压较大的感应线是指电流或电压大于预定阈值的感应线。
  6. 如权利要求4所述的触控面板，其中，各第一方向感应线和各第二方向感应线中电流或电压较小的感应线是指电流或电压减小的幅度大于预定阈值的感应线，并且，各第一方向感应线和各第二方向感应线中电流或电压较大的感应线是指电流或电压增大的幅度大于预定阈值的感应线。
  7. 如权利要求4所述的触控面板，其中，如果所确定的第一方向感应线和/或第二方向感应线的条数为一条，则将该第一方向感应线和第二方向感应线共同串联的太阳能电池模块所对应的触控面板区域作为触控区域。
  8. 一种触控显示装置，包括：显示面板和如权利要求1～7中任一项所述的触控面板，其中，
    所述触控面板位于显示面板的显示像素区正上方，且触控面板中 的多个太阳能电池模块正投影在显示面板的像素电极上。
  9. 如权利要求8所述的触控显示装置，其中，触控面板的每个太阳能电池模块的投影对应显示面板中至少一个像素电极，且每个像素电极唯一对应一个太阳能电池模块的投影。
  10. 如权利要求8所述的触控显示装置，其中，所述触控显示装置还包括电能存储装置，所述触控面板将太阳能电池板转化的电能通过第一方向感应线和第二方向感应线传输至电能存储装置中。
  11. 如权利要求10所述的触控显示装置，其中，若所述电能存储装置为充满状态，则所述触控面板将转换的电能直接供给显示面板。
  12. 一种触控显示装置，包括：显示面板和如权利要求1～7中任一项所述的触控面板，其中，
    所述触控面板位于显示面板的背光源上方，显示面板的像素电极正投影在触控面板的太阳能电池板上。
  13. 如权利要求12所述的触控显示装置，其中，触控面板的每个太阳能电池模块对应显示面板中至少一个像素电极的投影，且每个像素电极的投影唯一对应一个太阳能电池模块。
  14. 如权利要求12所述的触控显示装置，其中，所触控显示装置还包括电能存储装置，所述触控面板将太阳能电池板转化的电能通过第一方向感应线和第二方向感应线传输至电能存储装置中。
  15. 如权利要求14所述的触控显示装置，其中，若所述电能存储装置为充满状态，则所述触控面板将转换的电能直接供给显示面板。
  16. 一种触控显示装置，包括：显示面板、处理器和如权利要求1～7中任一项所述的触控面板，其中，所述显示面板独立于所述触控面板，并且所述处理器预先存储显示面板的显示区域与触控面板的触控区域的对应关系。
  17. 一种触控显示装置，包括：
    显示面板，包括上玻璃基板、像素电极、下玻璃基板和背光源；以及
    触控面板，包括：
    太阳能电池板，位于所述显示面板的背光源上方，并且包括多个太阳能电池模块；
    n条第一方向感应线和m条第二方向感应线，用于传输所述太阳 能电池板转换的电能；以及
    检测单元，用于检测各第一方向感应线和各第二方向感应线上的电流或电压，并根据所述电流或电压的变化确定触控物体的触控区域；
    其中，所述n条第一方向感应线和所述m条第二方向感应线中的每一条将沿着该方向上的相应的太阳能电池模块进行串联，并且m，n为正整数；
    其中，所述显示面板的所述像素电极正投影在所述触控面板的所述太阳能电池板上。
PCT/CN2014/086625 2014-06-05 2014-09-16 一种触控面板及触控显示装置 Ceased WO2015184702A1 (zh)

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