TWI730787B - Bending display touch panel and method for repairing its sensing film - Google Patents

Abstract

A bendable display touch panel and its sensing film repair method, including: a receiving sensing film and a transmitting sensing film; wherein, if the defect has been damaged due to bending, one of the controllers of the receiving sensing film enters repair Mode, in addition to using a first line to receive the driving signal of the sensing pattern, and simultaneously using the first line and the second line to receive the sensing signal on both sides of the sensing pattern of a bending area, by the general finger touch The area of ​​the touch screen will be larger than the width of the crack on the sensing pattern, so that the sensing patterns at the upper and lower ends of the crack will change the capacitance. The controller can estimate the center point of the touch according to the change in the sensing pattern capacitance at the upper and lower bending areas , Therefore, the touch at the disconnected position will not be disabled; if the sensing pattern in the bending area of ​​the emission sensing film is broken due to bending, the controller will also enter the repair mode, and the controller will drive signals for one of the damaged defect sensing patterns Compensation, so that the driving signal is not lower than other normal sensing patterns due to the increase in resistance, thereby improving the sensing amount and touch performance of the receiving end.

Description

Bendable display touch panel and its induction film repair method

The present invention is a bendable display touch panel and a method for repairing its induction film, especially a display that can continue normal operation of the touch panel when the bendable area is damaged due to bending Those with touch panels.

Press, bendable display touch panel. As the research and development of materials and bending mechanism become more mature, more and more products are coming to the market. Please refer to Figures 1A, 1B and 1C. The folded display touch panel 10 usually has a fixed bending area 11, so that the conventional bendable display touch panel 10 has a receiving sensor film 12 (RX sensor film) and a transmitting sensor film 13 ( TX sensor film), the bending area 11 here will be bent many times by the user, so it is most likely to cause damage to the receiving sensor film 12, the circuit of the transmitting sensor film 13, and the sensor pattern 121, 131. As a result, the lines of the receiving sensing film 12 and the transmitting sensing film 13 are easily bent and damaged in the bending area 11, so that the bending area 11 cannot be touched.

It can be seen that there are still many deficiencies in the above-mentioned conventional items, and they are not a good designer, and urgently need to be improved.

In view of this, the inventor of the present case has been engaged in the manufacturing, development and design of related products for many years. Aiming at the above-mentioned goals, after detailed design and careful evaluation, he finally obtained a practical invention.

The object of the present invention is to provide a bendable display touch panel and a method for repairing the induction film thereof, which can make the touch panel continue to operate when the bendable area is damaged due to being bent. Normal operation.

According to the above objective, the bendable display touch panel and its induction film repair method of the present invention has a fixed bending area, which mainly includes: a receiving sensor film (RX sensor film) and a transmitting sensor Film (TX sensor film); wherein the top surface of the receiving sensor film is connected to a flexible cover lens of the display touch panel through a first optical adhesive (OCA), and the receiving sensor film has a plurality of The first sensing patterns arranged at equal intervals, the sensing pattern corresponding to the bending area is a bending area sensing pattern, and the rest are non-bending area sensing patterns. One side of the first sensing pattern is provided with a controller (Control IC ), the controller is provided with a plurality of first circuits on one side of the first sensing patterns, one end of each of the first circuits is connected to the side of each first sensing pattern, and the other end is connected to the controller, the control The device is also provided with at least one second circuit, one end of the second circuit is connected to the controller, and the other end is connected to the other side of the sensing pattern of the bending area; the top surface of the transmitting sensing film is penetrated by a second optical glue Connected to the receiving sensor film, the bottom surface is connected to a flexible display layer of the display touch panel (Flexible Display) through a third optical glue/water glue (OCA/OCR), and the transmitting sensor film has a plurality of components, etc. For the second sensing patterns arranged at intervals, the sensing pattern corresponding to the bending area is a bending area sensing pattern, and the rest are non-bending area sensing patterns. The two ends of these second sensing patterns are also connected to the controller (Control IC ), the controller communicates with the two sides of the sensing patterns through a plurality of third and fourth lines respectively Connect; thereby, when the bendable display touch panel is turned on and used, the controller determines the defect location of the first sensing patterns or the second sensing patterns corresponding to the bending area, and when the defect is confirmed Among the first sensing patterns, the controller transmits driving signals through the first lines and the second lines connected to the defective first sensing patterns, and touches the screen with a normal finger The area will be larger than the width of the crack on the sensing pattern. When the finger is close to the crack, the sensing pattern at the upper and lower ends of the crack will change in capacitance. The controller can estimate the touch based on the change in capacitance of the sensing pattern in the upper and lower bending area. Therefore, the touch at the disconnected position will not fail; when the defect is confirmed in the second sensing pattern, the controller passes through the third lines connected to the second sensing pattern of the defect and the Waiting for the fourth line to transmit a compensation signal, so that the driving signal is not due to the increase in resistance, but is lower than other normal sensing patterns, thereby improving the sensing amount and touch performance of the receiving (RX) side. In this way, even when the bendable area is damaged due to being bent, the touch panel can still continue to operate normally.

In order to facilitate your reviewer to have a further understanding and understanding of the purpose, shape, features and effects of the structure of the present invention, a detailed description is given as follows:

20: Touch panel

21: bending area

31: Receiving sensor film

32: emission sensor film

33: The first optical glue

34: Flexible cover

311: The first induction pattern

312: Sensing pattern in bending area

313: Non-bending area sensing pattern

40: Controller

315: First Route

316: second line

35: second optical glue

36: The third optical glue/water glue

37: Flexible display panel

321: second induction pattern

322: Bend zone induction pattern

323: Non-bending zone induction pattern

325, 326: Third Route, Fourth Route

22: Non-bending area

Figures 1A, 1B, and 1C are schematic diagrams of the appearance of a conventional bendable display touch panel and its receiving sensing film and transmitting sensing film.

FIG. 2 is a schematic diagram of the appearance of the bendable display touch panel and the method for repairing the induction film of the present invention.

FIG. 3 is a schematic diagram of the bendable display touch panel and its induction film repair method of the present invention when it is bent.

FIG. 4 is a schematic diagram of the structure of the bendable display touch panel and the method for repairing the induction film of the present invention.

FIG. 5 is a schematic diagram of the structure of the receiving sensor film of the bendable display touch panel and the sensor film repair method of the present invention.

FIG. 6 is a schematic diagram of the structure of the emitting sensor film of the bendable display touch panel and the sensor film repair method of the present invention.

FIG. 7 is a flow chart of the controller operation of the bendable display touch panel and its induction film repair method of the present invention.

FIG. 8 is a flow chart of the inspection operation of the repair method of the bendable display touch panel sensor film of the present invention.

FIG. 9 is a flowchart of another embodiment of the inspection operation of the repair method of the bendable display touch panel sensor film of the present invention.

The present invention relates to a "bendable display touch panel and its induction film repair method". Please refer to Figures 2 and 3 for the bendable display touch panel and its induction film repair method of the present invention. A touch panel 20 is provided. The touch panel 20 has a fixed bending area 21 and at least one non-bending area 22. The bending area 21 is adjacent to the non-bending areas 22, and the bending area 21 Located between the two non-bending regions 22.

Please refer to Figure 4, the touch panel 20 mainly includes: a controller 40 (Control IC) (not shown), a receiving sensor film 31 (RX sensor film) and a transmitter TX sensor film 32 (TX sensor film); wherein the top surface of the receiving sensor film 31 is connected to a flexible cover lens 34 (Flexible Cover Lens) of the display touch panel 20 through a first optical adhesive 33 (OCA), The top surface of the transmitting sensing film 32 is connected to the receiving sensing film 31 through a second optical glue 35, and the bottom surface is connected to the display touch panel 20 through a third optical glue/water glue 36 (OCA/OCR). The display panel 37 (Flexible Display) is connected.

Please refer to Figures 4 and 5, the receiving sensing film 31 has a plurality of first sensing patterns 311 arranged at equal intervals, and the first sensing pattern 311 corresponding to the bending area 21 is a bending area sensing pattern 312. The other adjacent ones are non-bending area sensing patterns 313. One side of the first sensing patterns 311 is provided with a controller 40 (Control IC), and the controller 40 is provided with a plurality of control ICs at one end of the first sensing patterns 311. One end of each first line 315 is connected to one end of each of the first sensing patterns 311, and the other end is connected to the controller 40. The controller 40 is also provided with at least one second line 316. One end of the line 316 is connected to the controller 40, and the other end is connected to the other end of the bending area sensing pattern 312 of the first sensing pattern 311, so that the first sensing pattern 311 corresponding to the bending area 21 is relatively A plurality of second circuits 316 are provided at one end of the first circuit 315 to be electrically connected to the controller 40.

Please refer to Figures 4 and 6, the transmitting sensing film 32 is laminated on the receiving sensing film 31 by a second optical glue 35, and the transmitting sensing film 32 has a plurality of second sensing patterns 321 arranged at equal intervals. And the arrangement direction of the second sensing patterns 321 intersects the arrangement direction of the first sensing patterns 311, the second sensing pattern 321 corresponding to the bending area 21 is a bending area sensing pattern 322, and the other adjacent ones It is the non-bending area sensing pattern 323. One end of the sensing pattern is provided with the controller 40. The controller 40 uses a plurality of third lines 325 and a fourth line 326 respectively and two of the second sensing patterns 321 End connected.

Please refer to Figures 5 and 6, the controller 40 includes a compensation unit (not shown) to provide a driving signal to the first sensing patterns 311 corresponding to the bending area or provide a compensation signal For the second sensing patterns 321 corresponding to the bending area, further, the compensation unit provides a driving signal (not shown in the figure) to the second lines 316 so that the second lines 316 can receive The driving signal of the controller 40, and the compensation unit provides a compensation signal (not shown in the figure) to the fourth lines 326 to increase the driving voltage to increase the charging time or the number of charging.

Please refer to Figure 7 for the repairing method of the sensor film of the flexible display touch panel of this creation. The controller operation flow is explained as follows. When the touch panel 20 is turned on and used, the following steps are followed for processing :

(701) First, the controller 40 first determines the defect positions of the first sensing patterns 311 or the second sensing patterns 321 corresponding to the bending area 21.

(702) When the controller 40 confirms that the defect location is located in the first sensing patterns 311, the controller 40 passes the first lines 315 connected to the first sensing patterns 311 of the defects And the second circuits 316 transmit a driving signal. The controller 40 further includes a compensation unit to provide a driving signal to the corresponding first sensing pattern 311. The compensation unit provides a driving signal to the second circuits 316, so that the second lines 316 receive the driving signal of the controller 40. Generally, the area where the finger touches the screen will be larger than the width of the crack on the first sensing pattern 311, so that when the finger is close to the crack, the crack will go up and down. The first sensing pattern 311 at both ends will produce a change in capacitance. The controller 40 can estimate the center point of the touch based on the change in capacitance of the sensing pattern 312 in the upper and lower bending area, so that the touch at the disconnected position will not fail.

(703) When the controller 40 confirms that the defect position is located in the second sensing patterns 321, the controller 40 passes through the third lines 325 connected to the second sensing patterns 321 of the defects And the fourth lines 326 transmit a compensation signal, the compensation signal is provided by the compensation unit of the controller, and the compensation signal is supplied to the defective second sensing pattern 321 to increase the driving voltage and the number of driving charging times to drive The signal is not due to the increase in resistance, but is lower than other normal second sensing patterns 321, thereby improving the sensing amount and touch performance of the receiving (RX) end.

(704) If the controller 40 confirms that the first sensing patterns 311 and the second sensing patterns 321 have defects at the same time, a compensation unit of the controller 40 will provide a driving signal at the same time The corresponding first sensing pattern 311 and the compensation signal are provided to the second sensing pattern 321, so as to provide driving signals to the second lines 316, and at the same time, to transmit compensation signals to the third lines 325 and the fourth lines 326 to The second lines 316 receive the driving signal of the controller 40 and the second sensing pattern 321 to increase the driving voltage and the number of driving charging times. The transmitting sensing film 32 emits a touch signal, and then the receiving sensing film 31 receives the touch signal. If a finger approaches the touch panel 20, some touch signals will be taken away, so that the receiving sensing film 31 receives the touch signal. The signal amount changes, and the controller 40 of the receiving sensing film 31 calculates the touch position of the finger according to the signal amount change.

When the emission sensing film 32 is damaged and defective, the sensing pattern 322 in the bending area is increased because of the increase in resistance, which causes the sensing pattern 322 in the bending area to be charged slowly or not fully charged. The driving signal on it is It will be lower than other normal second sensing patterns 321, resulting in insufficient relative sensing of the receiving end of the receiving sensing film 31.

Please refer to Figure 8 for the flow chart of the detection operation flow chart of the repairing method of the sensor film of the bendable display touch panel of the present creation. When the touch panel 20 is turned on for use, the controller 40 follows the following steps Processing: (801) First, the power is turned on; (802) Enter the detection mode; (803) Determine whether the sensing pattern 312 of each bending area of the receiving sensing film 31 is open or short-circuited? If there is no damage defect, proceed to step (806); if the defect has been damaged due to bending, proceed to the following steps (804); (804) if the defect has been damaged due to bending, the controller 40 enters the repair mode (805) In addition to using the first circuit 315 to receive the driving signal of the first sensing pattern 311, the first circuit 315 and the second circuit 316 are also used to receive the driving signal of the two ends of the bending area sensing pattern 312 ; (806) Enter normal operation mode.

Please refer to FIG. 9 which shows a flowchart of another embodiment of the detection operation of the repair method of the sensor film of the bendable display touch panel of the present creation. When the touch panel 20 is turned on for use, the controller 40 is Process according to the following steps: (901) First, the power is turned on; (902) Enter the detection mode; (903) Determine whether the sensing pattern 322 of each bending area of the emission sensing film 32 is open or short-circuited? If there is no damage defect, proceed to step (906); if the defect has been damaged due to bending, proceed to the following step (904); (904) If the defect has been damaged due to bending, the controller 40 also enters the repair mode; (905) The controller 40 will compensate the driving signal for the bending area sensing pattern 322 of the damaged defect to make it drive the signal Not due to the increase in resistance, it is lower than other normal second sensing patterns 321, thereby improving the sensing amount and touch performance of the receiving (RX) end; (906) enters the normal operation mode.

Based on the above description, the present invention provides a bendable display touch panel and a method for repairing its sensor film. When the bendable area is damaged and defective due to bending, it can detect by itself, and It can automatically perform repairs and the touch panel can still continue to operate normally, which is in fact in line with the novelty and advancement requirements of the patent law.

The above-described embodiments are only the best specific embodiments of the present invention, but the structural features of the present invention are not limited thereto. Anyone familiar with the art in the field of the present invention can easily think of changes or modifications. It can be covered in the following patent scope of this case.

20: Touch panel

21: bending area

22: Non-bending area

31: Receiving sensor film

32: emission sensor film

33: The first optical glue

34: Flexible cover

35: second optical glue

36: The third optical glue/water glue

37: Flexible display panel

Claims (13)

A bendable display touch panel, comprising: a touch panel with a bending area and at least one non-bending area adjacent to the bending area, and comprising: a controller; a receiving sensor film, There are a plurality of first sensing patterns arranged at equal intervals, one end of the first sensing patterns is electrically connected to the controller through a plurality of first lines; a transmitting sensing film is stacked on the receiving sensing film and has a plurality of Second sensing patterns arranged at equal intervals, one end of the second sensing patterns is electrically connected to the controller through a plurality of third lines, and the arrangement direction of the second sensing patterns is the same as the arrangement of the first sensing patterns The directions intersect; and the first sensing pattern corresponding to the bending area is provided with a plurality of second circuits with respect to one end of the first circuits to be electrically connected to the controller. For example, the bendable display touch panel described in the scope of patent application, wherein the second sensing patterns corresponding to the second sensing patterns of the bending area are provided with a plurality of fourths relative to the other end of the third lines The circuit is electrically connected to the controller. For the bendable display touch panel described in item 2 of the scope of patent application, the controller further includes a compensation unit to provide a driving signal to the first sensing patterns corresponding to the bending area or provide a The compensation signal is given to the second sensing patterns corresponding to the bending area. For the bendable display touch panel described in item 3 of the scope of patent application, the compensation unit further provides the driving signal to the second circuits, so that the second circuits receive the driving signal of the controller. For the bendable display touch panel described in item 3 of the scope of patent application, the compensation unit further provides the compensation signal to the fourth circuits to increase the driving voltage to increase the charging time or the number of charging times. In the bendable display touch panel described in claim 1, wherein the bending area is located between two non-bending areas. The bendable display touch panel described in claim 1 of the patent application further includes a flexible display panel attached to the touch panel by an optical glue. A method for repairing the sensor film of a bendable display touch panel as described in items 1-7 of the scope of patent application, which includes: the controller determines the first sensor patterns or the first sensor patterns corresponding to the bending area 2. The defect position of the sensing pattern; when the defect is confirmed in the first sensing pattern, the controller transmits a drive through the first lines and the second lines connected with the first sensing patterns of the defect Signal. For example, the method for repairing the sensor film of the bendable display touch panel described in the scope of the patent application, which further includes the second sensor pattern when the defect is confirmed to be located therein, the controller passes the second sensor pattern of the defect. The third lines and the fourth lines connected by the two sensing patterns transmit a compensation signal. According to the method for repairing a flexible display touch panel sensor film described in claim 9, wherein the compensation signal is supplied to the defective second sensor patterns to increase the driving voltage. According to the method for repairing a flexible display touch panel sensor film described in claim 10, the compensation signal is supplied to the defective second sensor patterns to increase the number of driving charges. The method for repairing a flexible display touch panel sensor film as described in claim 10, wherein the compensation signal is provided by the compensation unit of the controller. For example, the method for repairing the sensor film of the bendable display touch panel described in the scope of patent application, wherein the compensation unit further provides the driving signal to the second circuits so that the second circuits receive the control The drive signal of the device.

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