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286results about How to "Realize the touch function" patented technology

Capacitance embedded touch screen, driving method and display device thereof

The invention discloses a capacitance embedded touch screen, a driving method of the capacitance embedded touch screen and a display device of the capacitance embedded touch screen. A touch sensing electrode is arranged on a color film substrate, a wholly connected common electrode layer in the TFT (thin film transistor) array substrate is divided into a touch driving electrode and a common electrode, the touch driving electrode adopts a time-sharing driving mode to achieve the display and touch functions, the time-sharing driving mode helps to reduce the mutual interference between display and touch and increase the picture quality and the touch accuracy; an overlapping area of the touch sensing electrode and the touch driving electrode indents to from an indentation part to reduce the facing area between the touch sensing electrode and the touch driving electrode, so as to reduce the sensing capacitance formed at the overlapping area; in order to solve the problem of the increase of resistance of the touch sensing electrode because of the reduction of the area of the indentation part, the area at the overlapping area between the touch sensing electrode and the common electrode is expanded outwards to form an expansion part to reduce the resistance of the touch sensing electrode, thereby enabling the resistance of the entire touch sensing electrode to meet the requirement of the touch screen.
Owner:BEIJING BOE OPTOELECTRONCIS TECH CO LTD

Capacitive embedded touch screen panel and display device

The invention discloses a capacitive embedded touch screen panel and a display device. Touch induction electrodes are configured on a color film substrate, a whole-face-connected common electrode layer in a TFT (Thin Film Transistor) array substrate is divided into strips which are taken as touch driving electrodes, and the touch driving electrodes are driven in a time-share manner to realize a touch function and a display function. According to the touch screen panel provided by the embodiment of the invention, the structure of the common electrode layer of the TFT array substrate is changed to form the touch driving electrodes, and an additional process is not needed on the basis of a preparation process of the existing TFT array substrate, therefore, the production cost is saved, and the production efficiency is improved. Furthermore, as the touch function and the display function are implemented in the time-share driving manner, on one hand, chips for display driving and touch driving can be integrated, and thus the production cost is further lowered, on the other hand, the mutual interference of display and touch can be further decreased by the time-share driving manner, and thus the image quality and touch accuracy are improved.
Owner:BEIJING BOE OPTOELECTRONCIS TECH CO LTD

Capacitive embedded touch screen and display device

The invention discloses a capacitive embedded touch screen and a display device. A common electrode layer which is connected on the whole surface in an array substrate is divided onto a touch drive electrode and a common electrode, which are insulated with each other and crossed; a touch induction electrode is arranged on an upper substrate for driving the touch drive electrode in a time-sharing manner, so that the touch function and the display function are realized. The projection, on the array substrate, of the touch induction electrode is arranged in an area at which the common electrode is positioned, so that the opposite surface between the touch induction electrode and the touch drive electrode can be reduced, and therefore, opposite capacitance is reduced; the side of the touch drive electrode and the side of the opposite common electrode are set to be folding lines; and the shape of each touch control induction electrode and the shape of the common electrode are set to be consistent, so that the opposite surface of the touch drive electrode and the touch induction electrode can be increased, and projected capacitance in a unit area is increased. By increasing the proportion of the projected capacitance to the opposite capacitance, the proportion of mutual capacitance variation caused by finger touch can be increased, so that the touch accuracy is improved.
Owner:BEIJING BOE OPTOELECTRONCIS TECH CO LTD

Liquid crystal panel, liquid crystal display and manufacturing method

The invention provides a liquid crystal panel, a liquid crystal display and a manufacturing method, and relates to the field of liquid crystal displays. By the aid of the liquid crystal panel, the liquid crystal display and the manufacturing method, the problem that a touch function and a display function of a panel are not integrated in the prior art is solved. A signal line is arranged between a color film substrate of the liquid crystal panel and a spacer made of piezoelectric materials, another signal line is arranged between the spacer made of the piezoelectric materials and an array substrate, the two signal lines respectively contact with side surfaces of the spacer made of the piezoelectric material, a side surface of the color film substrate and a side surface of the array substrate, projection, which is formed on the array-substrate-side surface of the spacer made of the piezoelectric materials, of the signal line on the color-film-substrate-side surface of the spacer made of the piezoelectric materials is intersected with the signal line on the array-substrate-side of the spacer made of the piezoelectric materials, and the two signal lines are insulating mutually. In addition, the spacer of the liquid crystal panel is made of the piezoelectric materials, and matches with the crossed signal lines to realize a touch function, so that the touch function and the display function of the panel are integrated.
Owner:BOE TECH GRP CO LTD +1

Embedded type touch screen and display device

The invention discloses an embedded type touch screen and a display device. A public electrode layer integrally connected in an array substrate is divided to form a plurality of touch drive sub-electrodes and a plurality of public sub-electrodes, the touch drive sub-electrodes and the public sub-electrodes are independent of each other and arrayed at intervals, the touch drive sub-electrodes are electrically connected through touch drive signal lines to form touch drive electrodes, and the public sub-electrodes are electrically connected through public electrode signal lines to form public electrodes; touch sensing electrodes are arranged on opposite substrates, the touch sensing electrodes and the touch drive electrodes are arranged in a cross mode, the touch drive electrodes are driven in a time-share mode, and therefore the touch function and the display function are achieved. Due to the fact that the touch drive electrodes in the touch screen are composed of the multiple touch drive sub-electrodes and the public electrodes are composed of the multiple public sub-electrodes, the signal transmission loads of the touch drive electrodes and the public electrodes are relatively close, the transmission speed of public signals in the public electrodes in the display stage and the transmission speed of public signals in the touch drive electrodes in the display stage are also relatively close, the problem that displayed images are not even can be solved, and image quality can be improved.
Owner:BEIJING BOE OPTOELECTRONCIS TECH CO LTD +1

A stretchable panel and a flexible display device

The invention provides a stretchable panel and a flexible display device, the stretchable panel comprising a stretchable substrate and an electrode layer, wherein the stretchable substrate comprises aplurality of island-shaped structures arranged in an array, and any two adjacent island-shaped structures are spaced apart from each other and connected by a bridge; the electrode layer includes at least one first sub-electrode and at least one second sub-electrode, the first sub-electrode being insulated from the second sub-electrode and the first sub-electrode and the second sub-electrode beinglocated on the island structure; the first sub-electrodes of the at least one row of island-shaped structures are electrically connected in turn to form a first electrode, and the second sub-electrodes of the at least one row of island-shaped structures are electrically connected in turn to form a second electrode. Based on this, the touch position and/or the stretching state can be determined according to the capacitance change of the first electrode and the second electrode. That is to say, the stretchable panel provided by the invention not only realizes the touch control function of the stretchable flexible display panel, but also realizes the function of detecting the stretching state, thereby expanding the application range of the stretchable panel and the flexible display device.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

In cell touch display screen, driving method thereof and display device

The invention discloses an in cell touch display screen, a driving method of the in cell touch display screen and a display device. Every sub-pixel set consists of at least two sub-pixels, cathode layers of different sub-pixel sets are independent from each other, namely, a cathode layer which is arranged on the whole surface in the prior art is divided, and the cathode layers of the sub-pixel sets are connected with a driver chip through wires; the cathode layers are reused as self-capacitance touch control electrodes, the driver chip detects changes of capacitance values of the cathode layers through the wires to judge the touch control position, and therefore a touch control function is fulfilled. In addition, in the in cell touch display screen, signals outputted by the driver chip to the signal ends of sub-pixel circuits and the cathode layers in the fourth stage are formed in a mode that same touch control scanning signals are superposed on the basis of signals outputted in the third stage, and therefore the purpose that the working states of modules of the sub-pixel circuits are same to the working states in the third stage so as to ensure that normal display can be conducted can be achieved, and the in cell touch display screen based on an organic light emitting diode is obtained.
Owner:BOE TECH GRP CO LTD +1

Liquid crystal box, 3D touch control display device and control method thereof

ActiveCN103293726ARealize the function of splitting lightRealize 3D display functionStatic indicating devicesSteroscopic systemsGratingRetention time
The invention discloses a liquid crystal box, a 3D touch control display device and a control method thereof. The liquid crystal box comprises a first baseplate, a second baseplate, a liquid crystal layer positioned between the first baseplate and the second baseplate, grating layers positioned on the first baseplate, a touch control electrode layer positioned on the second baseplate, as well as a second polarizer and a third polarizer positioned on one sides, opposite to the liquid crystal layer, of the first baseplate and the second baseplate respectively. Based on the structure, in a time-sharing period of a 3D display mode, driving voltage is applied to the touch control electrode layer and the grating layers in sequence, and touch driving and grating driving are performed in sequence; in the grating driving process, the touch control electrode layer performs ground connection by serving as the common electrode layer of the grating layers; in the process of touch driving, the grating performs ground connection, various electrodes of the touch control electrode layer serve as the touch control electrodes of the touch control module; one-step detection is performed to the touch control signal, the time of the process of touch driving is less than the retention time of liquid crystal molecules; when the 3D display is performed, the light splitting function and the touch control function of the grating are realized at the same time; and two layers of glass baseplates are saved.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

Linear processing method and system of coordinates of touched point at marginal area of touch screen

The invention is suitable for the technical field of touch sensing and provides linear processing method and system of coordinates of a touched point at the marginal area of a touch screen, wherein the method comprises the following steps of: a. calculating initial coordinates of the touched point according to capacitance matrix data around the touched point; b. inputting the initial coordinates into a linear processing model which is established in advance and obtaining actual coordinates of the touched point, wherein the linear processing model contains functional relation information of the actual coordinates and the initial coordinates of the touched point; and c. responding the touching operation of a user at the position of the actual coordinates. When the marginal area of the touch screen is touched, the initial coordinates of the touched point, which are obtained by calculation according to the capacitance matrix data around the touched point, are input into the linear processing model to be carried out linear processing, and the actual coordinates of the touched point are obtained according to the functional relation information of the actual coordinates and the initial coordinates of the touched point in the model, therefore, the distortion is avoided when the coordinates of the touched point at the marginal area of the touch screen are calculated.
Owner:SHENZHEN GOODIX TECH CO LTD

Touch display screen and touch display device

The invention discloses a touch display screen and a touch display device. The touch display screen comprises an array substrate, a color film substrate, a group of first electrode lines, a group of second electrode lines and transparent conductive shielding layers, wherein the array substrate and the color film substrate are symmetrically arranged; the group of first electrode lines is arranged on the array substrate or the color film substrate; the group of second electrode lines is arranged on the array substrate or the color film substrate and is in intersection arrangement with the group of first electrode lines; and the transparent conductive shielding layers are arranged on the color film substrate and are positioned on the group of first electrode lines and the group of second electrode lines, and one parts of the transparent conductive shielding layer corresponding to the first electrode lines and the second electrode lines are provided with hollow structures. Mutual inductance signals between the first electrode lines and the second electrode lines can pass through gaps of the hollow structure, and thus the implementation of the touch functional is ensured; and in addition, the transparent conductive shielding layers per se have conductivity, when a display screen is touched by external static electricity, electrostatic charges can be quickly led out and connected with the ground by the transparent conductive shielding layers, the electrostatic damage to the display screen due to the electrostatic charges can be prevented, and the display effect is further increased.
Owner:BEIJING BOE OPTOELECTRONCIS TECH CO LTD

Micro-light-emitting-diode display panel and display device

The embodiment of the invention provides a micro-light-emitting-diode display panel and a display device. With a composite metal layer as a touch electrode, the space utilization rate of the display panel is improved and the lightening and thinning design of the display panel is realized. The micro-light-emitting-diode display panel comprises a plurality of light emitting elements arranged in a matrix. Each light emitting element consists of a first electrode, a semiconductor layer and a second electrode that are laminated successively; and the semiconductor layer is arranged between the first electrode and the second electrode. Each semiconductor layer includes a first semiconductor layer, an active layer and a second semiconductor layer that are laminated successively. In addition, each light emitting element also includes a metal layer encircling the side of the semiconductor layer; the metal layer and the first electrode are insulated with each other and the metal layer and the second electrode are insulated with each other. The plurality of light emitting elements are divided into a plurality of light emitting element groups, each of which includes a plurality of light emitting elements; and the metal layers of the plurality of light emitting elements in each light emitting element group are connected to each other to form a touch electrode.
Owner:SHANGHAI TIANMA MICRO ELECTRONICS CO LTD

Pixel circuit, organic electroluminescent display panel and display device

The invention discloses a pixel circuit, an organic electroluminescent display panel and a display device. The pixel circuit is characterized in that a first node is initialized in the initializing time periods of a touch control phase and a display phase; the voltage of the first node is regulated in the touch control induction time period; a driving module is enabled to output a corresponding touch control signal under the control of the voltage of the first node in the touch control reading time period for realizing a touch control function; data writing is performed on the first node in the compensation and data writing time period of the display phase; the driving module is enabled to drive a light emitting device in a light emitting module to emit light in a light emitting time period for realizing the normal light emitting function of the light emitting device. Thus, compared with a traditional pixel circuit, the pixel circuit provided by the embodiment of the invention integrates the touch control function and a display function, so that the manufacturing cost of respectively arranging a display driving circuit and a touch control circuit can be reduced; the circuit structure is simplified; and the thickness of the display panel can also be reduced.
Owner:HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1

Nano carbon tube capacitive type touch screen and production and manufacturing method thereof

The invention relates to a nano carbon tube capacitive type touch screen and a production and manufacturing method of the nano carbon tube capacitive type touch screen. The structure comprises a cover plate layer, an OCA (Optically Clear Adhesive) optical adhesive layer and a nano carbon tube transparent conducting thin film layer, wherein a line layer is further arranged on the lower surface of the nano carbon tube transparent conducting thin film layer; an electrode layer is arranged at the periphery of the line layer; the electrode layer is used for leading out the line layer; in a working process, a low-voltage alternating-current electric field is formed in the nano carbon tube transparent conducting thin film layer; when a finger of a user touches the surface of the nano carbon tube capacitive type touch screen, a coupling capacitor is formed between the finger and the nano carbon tube transparent conducting thin film layer; meanwhile, a certain number of charges are transferred to a human body; in order to recover charge loss, the charges are supplemented from four corners of the nano carbon tube capacitive type touch screen; the charge number supplemented in each direction is proportion to the distance to a touch point so that the position of the touch point can also be calculated.
Owner:深圳市航泰光电有限公司 +1

Carbon nano-tube capacitive touch screen and manufacturing method thereof

The invention relates to a carbon nano-tube capacitive touch screen and a manufacturing method of the carbon nano-tube capacitive touch screen. The carbon nano-tube capacitive touch screen structurally comprises a cover plate layer, an OCA optical adhesive layer and a transparent carbon nano-tube conductive film layer, a circuit layer is further arranged on the lower surface of the transparent carbon nano-tube conductive film layer, and an electrode layer is arranged on the periphery of the circuit layer and used for leading out the circuit layer. In the work process, a low-voltage alternating-current electric field is formed in the transparent carbon nano-tube conductive film layer, when a user touches the surface of the carbon nano-tube capacitive touch screen with one finger, a coupling capacitor will be formed between the finger and the transparent carbon nano-tube conductive film layer, a certain amount of charges will be transferred to the human body, in order to compensate charge loss, the charges are supplemented from the four corners of the carbon nano-tube capacitive touch screen, the amount of the charges supplemented in all the directions are in proportion to the distance of a touch point, and therefore the position of the touch point can be calculated.
Owner:凌桦光
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