CN108803169B

CN108803169B - Display device

Info

Publication number: CN108803169B
Application number: CN201810598035.8A
Authority: CN
Inventors: 陈柏维; 黄郁升; 李长益
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2018-04-30
Filing date: 2018-06-11
Publication date: 2021-08-27
Anticipated expiration: 2038-06-11
Also published as: TW201946041A; TWI667642B; CN108803169A

Abstract

A display device comprises a plurality of receiving antenna units and a plurality of pixel circuits arranged in a display area. The plurality of receiving antenna units include a first receiving antenna unit and a second receiving antenna unit. The first receiving antenna unit is used for providing a first data signal to at least one first pixel circuit in the plurality of pixel circuits. The second receiving antenna unit is used for providing a second data signal to at least one second pixel circuit in the plurality of pixel circuits. The first receiving antenna unit and the second receiving antenna unit are partially overlapped in at least one direction.

Description

Display device

Technical Field

The present invention relates to a display device, and more particularly, to a display device having a large size and a high resolution.

Background

With the increasing demand of video and audio electronic products, large-sized and high-resolution display panels are one of the current panel design trends. However, the size of the pixel or the display panel is increased, and a longer circuit trace is required, and the resistance value is increased, thereby causing a signal distortion problem. Moreover, when the number of scan lines increases, the period of turning on the pixel circuit of each scan line in the same frame period is shortened, which results in insufficient pixel charging time and excessively short data signal writing time.

Disclosure of Invention

One embodiment of the present invention is a display device. According to an embodiment of the present invention, a display device includes a plurality of pixel circuits and a plurality of receiving antenna units. The pixel circuits are arranged in a display area. The plurality of receiving antenna units include a first receiving antenna unit and a second receiving antenna unit. The first receiving antenna unit is used for providing a first data signal to at least one first pixel circuit in the plurality of pixel circuits. The second receiving antenna unit is used for providing a second data signal to at least one second pixel circuit in the plurality of pixel circuits, wherein the first receiving antenna unit and the second receiving antenna unit are partially overlapped in at least one direction.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

FIG. 1A is a partial schematic view of a display device according to an embodiment of the invention;

FIG. 1B is a partial schematic view of the display device shown in FIG. 1A;

FIG. 1C is a schematic diagram of the pixel group shown in FIG. 1A;

FIG. 1D is a schematic diagram of the sub-pixel group shown in FIG. 1A;

FIG. 2 is a schematic diagram of a display device according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a receiving antenna unit and a transmitting antenna unit according to an embodiment of the invention;

FIG. 4 is a timing diagram illustrating a partial operation of the sub-pixel group shown in FIG. 1D;

FIG. 5 is a timing diagram illustrating a partial operation of the sub-pixel group shown in FIG. 1D;

FIG. 6A is an equivalent circuit diagram of the receiving antenna unit and the transmitting antenna unit shown in FIG. 3;

FIG. 6B is a diagram of a T-equivalent circuit (T-equivalent model) for the receiving antenna unit and the transmitting antenna unit shown in FIG. 3;

FIG. 7A is a diagram illustrating a transmitter coil and a receiver coil according to an embodiment of the present invention;

FIG. 7B is a graph of the frequency response according to the graph shown in FIGS. 7A and 6B;

FIG. 8A is a diagram illustrating a transmitter coil and a receiver coil according to an embodiment of the present invention;

FIG. 8B is a graph of the frequency response according to the graph shown in FIGS. 8A and 6B;

FIG. 9 is a diagram illustrating a display device according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a receiving antenna unit according to an embodiment of the present invention;

fig. 11 is a diagram illustrating a receiving antenna unit according to an embodiment of the invention.

Wherein, the reference numbers:

10. 20: display device

GP 1-GPm, GP1 '-GPm': pixel group

SGP 11-SGPnm: sub-pixel group

D1_1 to Dm _6, D1_1 'to Dm _ 6': data line

ANT11_ a to ANTnm _ b, ANT11_ c to ANT22_ d, ANT11_ e to ANT22_ f: receiving antenna unit

160: scanning drive unit

G1_1 to Gn _3, G1_1 'to Gn _ 3': scanning line

AA: display area

X11 to Xij, X (i +1)1 to X (2i)3, X (2i +1)1 to X (3i) 3: pixel circuit

220. 228: substrate

222. 230: polaroid

224: color filter

226: liquid crystal layer

227. 237, 227a, 227 b: electronic component layer

232: light guide plate

234: backlight element

COIL _ R1, COIL _ R2, COIL _ R3, COIL _ R4, COIL _ R5, COIL _ R6: receiving coil

ANT _ T1: transmitting antenna unit

COIL _ T1, COIL _ T2, COIL _ T3: transmitting coil

A-I, P-T, A '-I': node point

DIS 1: distance between two adjacent plates

Cp1 ', Cp2 ', Cp ', Cs1 ', Cs2 ', CL1 ', CL2 ': capacitor with a capacitor element

SWM: switching module

SW1, SW 2: switch with a switch body

Vdata1, Vdata 1': a first data signal

Vdata2, Vdata 2': second data signal

T11-T22, T1-T3: period of time

Ls1 ', Ls2 ', Lp ': inductance

RL1 ', RL 2': resistance (RC)

Vout1, Vout 2: output end

M12, Mp1, Mp 2: mutual inductance value

Vs: voltage source

Vin: input terminal

LW1, LW2, LW3, LW 4: line width

L1, L2, L3, L4: length of

W1, W2, W3, W4: width of

PW1, PL1, PW2, PW3, PL3, PW 4: distance between each other

X, Y, Z: direction of rotation

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

to enhance the understanding of the embodiments of the present invention, the following description is given by way of example only and with reference to the accompanying drawings, wherein the examples are not provided to limit the scope of the present invention, and wherein the description of the structural operations is not intended to limit the order of execution thereof, and any structure resulting from a combination of the elements described, such as to produce an apparatus with equivalent efficacy, is intended to cover the scope of the present invention. Moreover, the drawings are for illustrative purposes only and are not drawn to scale, wherein like elements or similar elements are designated by like reference numerals for ease of understanding.

The term (terms) used throughout the specification and claims of this application shall have the ordinary meaning as understood in the art, in this disclosure and in any specific context, unless otherwise indicated. The terms "first," "second," "third," …, and the like are used throughout the description and claims to distinguish between elements or operations described in the same technical language, and are not intended to imply a particular order or sequence, nor are they intended to limit the invention.

As used throughout the specification and claims of this application, the error or range of "about", "approximately" or "substantially" the value of a general index is within about twenty percent, preferably within about ten percent, and more preferably within about five percent. Furthermore, unless expressly stated otherwise throughout the description and claims of this specification, numerical values are stated as approximations, either as an error or a range, such as "about," approximately, "or" substantially.

As used throughout this specification and the claims, "coupled" or "electrically coupled" may mean that two or more elements are in direct physical or electrical contact with each other, or in indirect physical or electrical contact with each other, but "electrically coupled" may also mean that two or more elements operate or act with each other.

Referring to fig. 1A to 1C, fig. 1A is a partial schematic view of a display device 10 according to an embodiment of the invention, fig. 1B is a partial schematic view of the display device 10 shown in fig. 1A, fig. 1C is a schematic view of a pixel group GP1 shown in fig. 1A, and fig. 1D is a schematic view of a sub-pixel group SGP11 shown in fig. 1A. As shown in fig. 1A and 1B, the display device 10 includes pixel groups GP1 to GPm, GP1 'to GPm', Data lines (Data Line) D1_1 to Dm _6, D1_1 'to Dm _ 6', receiving antenna units ANT11_ a to ANT nm _ B, a scan driving unit 160, and scan lines (Gate Line) G1_1 to Gn _3, G1_1 'to Gn _ 3'.

In short, the data lines (e.g., the data lines D1_ 1-D1 _6, D1_1 ' -D1 _6 ') receive different data signals by wireless transmission, and simultaneously write the data signals into the pixel circuits (in different columns) of the pixel groups (e.g., the pixel groups GP1, GP1 ') in different columns, so as to solve the problem of too many scan lines causing too short writing time and avoid the problem of signal distortion caused by too long traces. For convenience of illustration, FIG. 1A is described in detail with respect to pixel groups GP 1-GPm, FIG. 1B is described in detail with respect to pixel groups GP1 '-GPm', wherein pixel groups GP 1-GPm are similar to pixel groups GP1 '-GPm', therefore, similar elements will be illustrated with the same symbol labels, and the following description is only provided with respect to pixel groups GP 1-GPm as an example, but not limited thereto.

As shown in fig. 1A, the pixel groups GP 1-GPm in the display device 10 are arranged in parallel and are disposed in a display area (active area) AA of the display device 10. The pixel group GP1 includes sub-pixel groups SGP11 SGPn1, the pixel group GP2 includes sub-pixel groups SGP12 SGPn2, and the pixel group GPm includes sub-pixel groups SGP1m SGPn. The sub-pixel groups SGP 11-SGPmm are arranged in a matrix, and each sub-pixel group includes i × j pixel circuits arranged in a matrix, for example, the sub-pixel group SGP11 shown in FIG. 1C and FIG. 1D includes pixel circuits X11-Xij, where i and j are positive integers.

The data lines D1_1 to Dm _6 of the display device 10 are substantially disposed in the pixel groups GP1 to GPm, for example, the data lines D1_1 to D1_6 are disposed in the pixel group GP1, the data lines D2_1 to D2_6 are disposed in the pixel group GP2, and the data lines Dm _1 to Dm _6 are disposed in the pixel group GPm.

The receiving antenna units ANT11_ a-ANTnm _ b of the display device 10 are substantially disposed in the sub-pixel groups SGP 11-SGPnm and electrically coupled to the data lines D1_ 1-D3 _6, respectively, for transmitting data signals. For example, as shown in fig. 1C, the receiving antenna unit ANT11_ a is disposed in the sub-pixel group SGP11 and electrically coupled to the data line D1_1 to provide data signals to the pixel circuits X11 to Xi1, X (i +1)1 to X (2i)1, and X (2i +1)1 to X (3i)1 corresponding to the data line D1_ 1. The receiving antenna unit ANT11_ b is disposed in the sub-pixel group SGP11 and electrically coupled to the data line D1_2 to provide data signals to the pixel circuits X12 to Xi2, X (i +1)2 to X (2i)2, and X (2i +1)2 to X (3i)2 corresponding to the data line D1_ 2. The receiving antenna unit ANT21_ a is disposed in the sub-pixel group SGP21 and electrically coupled to the data line D1_3 to provide data signals to the pixel circuits X13 to Xi3, X (i +1)3 to X (2i)3, and X (2i +1)3 to X (3i)3 corresponding to the data line D1_ 3.

The receiving antenna units ANT11_ a through ANT nm _ b each include a receiving coil, and can receive data signals by wireless transmission, and then provide the data signals to the pixel circuits through the data lines D1_1 through Dm _ 6. But is not limited thereto. For example, as shown in fig. 1D, the antenna unit ANT11_ a includes a receiving COIL _ R1, and the antenna unit ANT11_ b includes a receiving COIL _ R2.

As shown in fig. 1D, receive COIL _ R1 is substantially rectangular. The receiving COIL _ R1 includes a first turn and a second turn, the first turn includes the conductive lines AB, BC, CD, DE, and the second turn includes the conductive lines EF, FG, GH, HI. Receiver COIL _ R1 includes nodes a-I with conductors AB-HI disposed between nodes a-I, for example, conductor AB disposed between node A, B. The conductive lines AB, CD, EF, GH are disposed between two adjacent scan lines parallel to the scan lines G1_1 through G1_3, but do not overlap with any scan line, for example, the conductive line AB is disposed between the scan lines G1_1 and G1_2, but not limited thereto. The conductive lines BC, DE, FG, HI are disposed between two adjacent data lines parallel to the data lines D1_1 to D1_6, but do not overlap with any data line, for example, the conductive line DE is disposed between the data lines D1_1 and D1_2, but not limited thereto. In this way, the parasitic capacitance between the receiving COIL _ R1 and the scan line or between the receiving COIL _ R1 and the data line can be minimized.

Similarly, receive COIL _ R2 is substantially rectangular. Receiver COIL _ R2 includes a first turn that includes leads PQ, QR, RS, ST. Receiver COIL _ R2 includes nodes P to T with leads PQ to ST provided between nodes P to T, for example, lead PQ provided between node P, Q. The conductive lines PQ and RS are disposed between two adjacent scan lines in parallel to the scan lines G1_1 to G1_3, but do not overlap with any of the scan lines. The conductive lines QR, ST are disposed between two adjacent data lines in parallel to the data lines D1_1 to D1_6, but do not overlap any data line. In this way, the parasitic capacitance between the receiving COIL _ R2 and the scan line or between the receiving COIL _ R2 and the data line can be minimized.

More specifically, the conductive lines AB to HI and PQ to ST are respectively disposed between two adjacent pixel circuits, for example, the conductive line DE is disposed between the pixel circuits Xi2 and Xi3, so as to avoid affecting the uniformity of the image or the aperture ratio (aperture ratio), but not limited thereto. In some embodiments, the conductive lines AB to HI and PQ to ST are respectively disposed corresponding to a Black Matrix (BM) pattern of a Color Filter (CF), but not limited thereto.

In some embodiments, as shown in fig. 1D, the COIL _ R1 of the receiving antenna unit ANT11_ a includes a feed-in point A, I, the feed-in point a is electrically coupled to the data line D1_1, and the feed-in point I is electrically coupled to a ground terminal, but not limited thereto. Similarly, the receiving COIL _ R2 of the receiving antenna unit ANT11_ b includes a feeding point P, T, a feeding point P electrically coupled to the data line D1_2, and a feeding point T electrically coupled to ground. Similarly, the feeding points of the receiving antenna units ANT21_ a and ANT21_ b are electrically coupled to the data lines D1_3 and D1_4, respectively.

In other embodiments, the receiving coils and the data lines are not connected in sequence, for example, the feeding points A, P of the receiving antenna units ANT11_ a and ANT11_ b are electrically coupled to the data lines D1_6 and D1_3, respectively, and the feeding points of the receiving antenna units ANT21_ a and ANT21_ b are electrically coupled to the data lines D1_1 and D1_4, respectively. In other embodiments, the connection between the feeding point of the receiving coil and the data line and the ground terminal can be adjusted appropriately, for example, the feeding point A, T of the receiving antenna units ANT11_ a and ANT11_ b are electrically coupled to the data lines D1_1 and D1_2, respectively, and the feeding points I, P of the receiving antenna units ANT11_ a and ANT11_ b are electrically coupled to the ground terminal, respectively. In other embodiments, the position of the feeding point electrically coupled to the data line by the receiving coil may be adaptively adjusted, for example, the position of the feeding point a may be adjusted according to the position of the data line D1_1, so that the wire AB is shorter than the wire CD, and the position of the feeding point P may be adjusted according to the position of the data line D1_2, so that the wire PQ is shorter than the wire RS.

In order to increase the areas of the receiving COILs COIL _ R1 and COIL _ R2 to increase the magnetic flux, as shown in fig. 1D, the receiving antenna units ANT11_ a and ANT11_ b are disposed along the edge of the sub-pixel group SGP11 to share the area of the sub-pixel group SGP11, instead of dividing the sub-pixel group SGP11 into two blocks to dispose the receiving antenna units ANT11_ a and ANT11_ b, respectively. In this case, the receiving COILs COIL _ R1, COIL _ R2 surround each other to overlap in the X direction and the Y direction, where the X direction is perpendicular to the Y direction. For example, the inner side of the first turn of receive COIL _ R1 is disposed around the outer side of the first turn of receive COIL _ R2, i.e., wires AB, BC, CD, DE of receive COIL _ R1 surround wires PQ, QR, RS, ST of receive COIL _ R2. The inner side of the first turn of receive COIL _ R2 is disposed around the outer side of the second turn of receive COIL _ R1, i.e., wires PQ, QR, RS, ST of receive COIL _ R2 surround wires EF, FG, GH, HI of receive COIL _ R1. Since the plurality of receiving coils are arranged in a sub-pixel group in a surrounding manner, the magnetic flux of each receiving coil can be increased under the condition that the area of the display area is fixed or the area of the display device 10 is fixed, so that the transmission efficiency can be improved.

To avoid signal interference, the receiving antenna unit ANT11_ a operates at a first resonance frequency (resonant frequency) to receive a first data signal, and the receiving antenna unit ANT11_ b operates at a second resonance frequency (resonant frequency) to receive a second data signal, wherein the first resonance frequency is different from the second resonance frequency. Similarly, the receiving antenna units ANT21_ a and ANT21_ b are disposed in the sub-pixel group SGP21, and the receiving antenna units ANT12_ a and ANT12_ b are disposed in the sub-pixel group SGP12 and are adjacent to the receiving antenna units ANT11_ a and ANT11_ b. The receiving antenna unit ANT21_ a operates at a third resonant frequency to receive a third data signal, the receiving antenna unit ANT21_ b operates at a fourth resonant frequency to receive a fourth data signal, the receiving antenna unit ANT12_ a operates at a fifth resonant frequency to receive a fifth data signal, the receiving antenna unit ANT12_ b operates at a sixth resonant frequency to receive a sixth data signal, and the first resonant frequency and the sixth resonant frequency are different from each other to avoid cross interference.

In short, in order to improve the display quality of the large-sized high-resolution display device 10, the pixel circuits of the display device 10 are distributed to different pixel groups. Although the display device 10 includes a plurality of scan lines, in one frame period, the scan driving unit 160 simultaneously turns on the first row of pixel circuits in each pixel group, and then the scan driving unit 160 simultaneously turns off the first row of pixel circuits in each pixel group and simultaneously turns on the second row of pixel circuits in each pixel group, so as to solve the problem that too many scan lines cause too short data signal writing time.

In detail, the scan driving unit 160 sequentially turns on the pixel circuits on each column through the scan lines G1_ 1-Gn _3 and G1_1 '-Gn _ 3' in one frame period. For example, the scan driving unit 160 simultaneously turns on the first columns of pixel circuits (e.g., X11, X12, X13) of the pixel groups GP1 to GPm and the first columns of pixel circuits (e.g., X11, X12, X13) of the pixel groups GP1 ' to GPm ' through the scan lines G1_1 and G1_1 ', and at this time, the data lines D1_1 to Dm _6 can write the data signals into the first columns of pixel circuits (e.g., X11, X12, X13) of the pixel groups GP1 to GPm, and the data lines D1_1 ' to Dm _6 ' can write the data signals into the first columns of pixel circuits of the pixel groups GP1 ' to GPm '. Then, the scan driving unit 160 simultaneously turns off the first columns of pixel circuits (e.g., X11, X12, X13) of the pixel groups GP1 GPm and the first columns of pixel circuits of the pixel groups GP1 '-GPm' through the scan lines G1_1 and G1_1 ', and turns on the second columns of pixel circuits (e.g., X21, X22, X23) of the pixel groups GP 1-GPm and the second columns of pixel circuits of the pixel groups GP 1' -GPm 'through the scan lines G1_2 and G1_ 2', at this time, the data lines D1_ 1-Dm 6 can write the data signals into the second columns of pixel circuits (e.g., X21, X22, X23) of the pixel groups GP 1-GPm, and the data lines D1_1 '-Dm _ 6' can write the data signals into the second columns of the pixel circuits GP1 '-GPm'. In this way, all the pixel circuits in the display device 10 can display a frame (image frame) according to the data signal.

In view of the above, the data lines (e.g., the data lines D1_ 1-D1 _6, D1_1 ' -D1 _6 ') need not be connected to any driver, and can receive different data signals through wireless transmission, so as to simultaneously write the data signals into the pixel circuits of the pixel groups (e.g., the pixel groups GP1, GP1 ') in different rows, thereby solving the problem of too short writing time caused by too many scan lines. In addition, in the large-size and high-resolution display device 10, the pixel groups (e.g., the pixel groups GP1, GP1 ') in different rows are electrically coupled to different data lines (e.g., the data lines D1_1 to D1_6, D1_1 ' to D1_6 '), so that the problem of signal distortion caused by too long traces can be avoided.

As shown in fig. 1A, the scan lines G1_1 to Gn _3 in the display device 10 are substantially disposed in the pixel groups GP1 to GPm, for example, the scan lines G1_1 to G1_3 are disposed in the sub-pixel groups SGP11 to SGP1m, the scan lines G2_1 to G2_3 are disposed in the sub-pixel groups SGP21 to SGP2m, and the scan lines Gn _1 to Gn _3 are disposed in the sub-pixel groups SGPn1 to SGPnm.

In the embodiment shown in fig. 1A and 1B, the scan driving unit 160 in the display device 10 is disposed in the peripheral area (non-active area) nAA, but the invention is not limited thereto. In other embodiments, the display device 10 may include one or more scan driving units (not shown), and in different embodiments, the scan driving units may be integrated into an active area (active area) of the display device 10. Each scan driving unit may be one or more integrated circuits, which output scan signals to enable a plurality of pixel circuits in the display device 10. The display device 10 can output the scan signals in different manners, in the embodiment, the display device 10 halves the data lines by half source driving, so that the pixel circuit is defined by one data line and two scan lines, for example, as shown in fig. 1D, the data line D1_1 and the scan lines G1_2 and G1_3 define the pixel circuit X21.

The display device 10 shown in fig. 1A may be an Organic Light Emitting Diode (OLED) display device or a liquid crystal display device, but is not limited thereto. Referring to fig. 2, fig. 2 is a schematic diagram illustrating a display device 20 according to an embodiment of the invention. In the present embodiment, the display device 20 is a liquid crystal display device, and includes substrates 220, 228, polarizers (polarizers) 222, 230, a color filter 224, a liquid crystal layer 226, an

electronic device layer

227, 237, a light guide plate (light guide plate)232, and a backlight (backlight) device 234. The color filter 224 includes a black matrix pattern (not shown).

In other embodiments, the positions of the electronic device layers 227 and 237 may be adjusted according to system requirements, for example, the electronic device layer 237 may also be disposed on a surface of the light guide plate 232.

In the present embodiment, the pixel groups GP1 to GPm, GP1 'to GPm', the data lines D1_1 to Dm _6, D1_1 'to Dm _ 6', the receiving antenna units ANT11_ a to ANT nm _ b, and the scan lines G1_1 to Gn _3, G1_1 'to Gn _ 3' shown in fig. 1A are all disposed in the electronic component layer 227 shown in fig. 2. The electronic component layer 237 shown in fig. 2 includes a plurality of transmitting antenna elements (not shown). The transmitting antenna unit can transmit the data signals to the corresponding receiving antenna units respectively in a wireless transmission mode, and after the receiving antenna units receive the data signals, the data signals are provided to the corresponding pixel circuits through the data lines.

Referring to fig. 3, fig. 3 is a schematic diagram of receiving antenna units ANT11_ a and ANT11_ b and transmitting antenna unit ANT _ T1 according to an embodiment of the present invention. The receiving antenna units ANT11_ a and ANT11_ b shown in fig. 3 may be used as the receiving antenna units ANT11_ a and ANT11_ b shown in fig. 1A and disposed in the electronic device layer 227 shown in fig. 2, and therefore, similar elements will be described with the same reference numerals. The transmitting antenna unit ANT _ T1 shown in fig. 3 is disposed in the electronic component layer 237 shown in fig. 2. The transmitting antenna unit ANT _ T1 includes a transmitting COIL _ T1, capacitors Cp1, Cp2, and a switching module SWM.

As shown in fig. 3, the switching module SWM of the transmitting antenna unit ANT _ T1 is electrically coupled to the transmitting COIL _ T1, the capacitors Cp1 and Cp2, and is used for switching the transmitting COIL _ T1 between the capacitors Cp1 and Cp2 to switch the transmitting antenna unit ANT _ T1 to operate at the first resonant frequency or the second resonant frequency. The switching module SWM includes switches SW1, SW 2. The switch SW1 is electrically coupled between the COIL _ T1 and the capacitor Cp1, and when the switch SW1 turns on the electrical connection between the COIL _ T1 and the capacitor Cp1, the COIL _ T1 operates at the first resonant frequency. The switch SW2 is electrically coupled between the COIL _ T1 and the capacitor Cp2, and when the switch SW2 turns on the electrical connection between the COIL _ T1 and the capacitor Cp2, the COIL _ T1 operates at the second resonant frequency.

In the embodiment shown in fig. 3, COIL _ T1 is substantially rectangular, but the invention is not limited thereto. The transmitting COIL _ T1 includes a first turn and a second turn, the first turn includes the conductive wires a 'B', B 'C', C 'D', D 'E', and the second turn includes the conductive wires E 'F', F 'G', G 'H', H 'I'. The transmitting COIL _ T1 includes nodes a 'to I', with conductors a 'B' to H 'I' disposed between the nodes a 'to I', for example, with conductor a 'B' disposed between the nodes a 'and B'. The conductors A 'B', C 'D', E 'F', G 'H' of the transmit COIL COIL _ T1 are arranged substantially parallel to the conductors AB, CD, EF, GH of the receive COIL COIL _ R1. The conductors B 'C', D 'E', F 'G', H 'I' of the transmit COIL COIL _ T1 are arranged substantially parallel to the conductors BC, DE, FG, HI of the receive COIL COIL _ R1. In other embodiments, the COIL _ T1 may be a rounded rectangle, a circle, an ellipse, a multi-turn rectangle/circle, or other similar COIL shapes.

In some embodiments, as shown in fig. 3, the transmitting COIL _ T1 of the transmitting antenna unit ANT _ T1 includes feeding points a 'and I', the feeding point a 'is electrically coupled to the switching module SWM, and the feeding point I' is electrically coupled to the ground. In other embodiments, the connection between the feeding point of the transmitting COIL and the switching module SWM and the ground terminal can be appropriately adjusted, for example, the feeding points a 'and I' of the transmitting COIL _ T1 are electrically coupled to the ground terminal and the switching module SWM, respectively. In other embodiments, the feeding points a ', I' of the transmitting COIL _ T1 may be adjusted to correspond to the feeding point A, I of the receiving COIL _ R1, such that the conductive line a 'B' is shorter than the conductive line C 'D'.

In some embodiments, as shown in fig. 3 and fig. 1D, the transmitting antenna unit ANT _ T1 is disposed corresponding to two receiving antenna units ANT11_ a and ANT11_ b and the sub-pixel group SGP11, so that the transmitting antenna unit ANT _ T1 selectively provides a first data signal to the receiving antenna unit ANT11_ a or a second data signal to the receiving antenna unit ANT11_ b by using a Single-Input Multi-Output (SIMO) transmission technique, but not limited thereto. In other embodiments, the transmitting antenna unit is disposed corresponding to more than two receiving antenna units and one sub-pixel group. In other embodiments, the display device includes a plurality of transmitting antenna units corresponding to a plurality of receiving antenna units and a sub-pixel group, so that the transmitting antenna units selectively provide data signals to the receiving antenna units by using a multiple-input multiple-output (MIMO) transmission technique.

In some embodiments, the receiving COIL _ R1 of the receiving antenna unit ANT11_ a, the receiving COIL _ R2 of the receiving antenna unit ANT11_ b, and the transmitting COIL _ T1 of the transmitting antenna unit ANT _ T1 are all disposed in the display area AA, but not limited thereto, and the disposition in the peripheral area may be adjusted according to system requirements. In some embodiments, the area of the receiving COIL _ R1 of the receiving antenna unit ANT11_ a is substantially the same as the area of the transmitting COIL _ T1 of the transmitting antenna unit ANT _ T1, but not limited thereto. In other embodiments, the first turn of the transmitting COIL _ T1 overlaps the first turn of the receiving COIL _ R1 in the z-direction to increase the magnetic flux, but not limited thereto.

In some embodiments, the receiving COILs COIL _ R1 of the receiving antenna unit ANT11_ a and COIL _ R2 of the receiving antenna unit ANT11_ b surround each other to share the area of the sub-pixel group SGP11, instead of dividing the sub-pixel group SGP11 into two blocks to configure the receiving antenna units ANT11_ a and ANT11_ b, respectively, so that coupling coefficients (coupling factors) between the receiving COIL _ R1 and the transmitting COIL _ T1 and between the receiving COIL _ R2 and the transmitting COIL _ T1 can be enhanced to improve transmission efficiency.

In other embodiments, the transmitting antenna unit ANT _ T1 includes a magnetic core (magnetic core) disposed in the central region of the transmitting COIL _ T1. The magnetic substance may have Ferromagnetism (Ferromagnetism) or Ferrimagnetism (Ferromagnetism), but is not limited thereto. Similarly, the receiving antenna units ANT11_ a and ANT11_ b may respectively include magnetic substances, and the magnetic substances preferably have light transmittance.

As shown in fig. 3, the receiving COIL _ R1 of the receiving antenna unit ANT11_ a and the receiving COIL _ R2 of the receiving antenna unit ANT11_ b are located substantially on the same plane parallel to the XY plane, and the receiving COIL _ R1 and the transmitting COIL _ T1 of the transmitting antenna unit ANT _ T1 are spaced apart by a distance DIS1 along the Z direction.

The transmitting COIL _ T1 transmits the first data signal and the second data signal by wireless transmission, for example, but not limited to, wireless transmission using magnetic coupling (NFC) technology in Near-Field communication (NFC), for example, wireless transmission using Far-Field technology. The receiving COIL _ R1 receives the first data signal and writes the first data signal into the corresponding pixel circuit through the data line D1_ 1. The receiving COIL _ R2 receives the second data signal and writes the second data signal into the corresponding pixel circuit through the data line D1_ 2. Therefore, the data lines (e.g., the data lines D1_ 1-Dm _6, D1_1 '-Dm _ 6') do not have to be connected to any driver.

In wireless transmission, the first data signal transmitted by the transmitting COIL _ T1 may also be received by the receiving COIL _ R2, or received by receiving COILs of receiving antenna units (e.g., receiving antenna units ANT12_ a, ANT12_ b, ANT21_ a, ANT21_ b) adjacent to the receiving antenna units ANT11_ a, ANT11_ b, thereby causing cross interference of signals. In order to reduce the effect of cross interference and improve transmission efficiency, the transmitting antenna unit ANT _ T1 may be selectively operated at a first resonance frequency or a second resonance frequency. When the transmitting antenna element ANT _ T1 operates at the first resonant frequency to transmit the first data signal, only the receiving antenna element ANT11_ a operating at the first resonant frequency has higher transmission efficiency and can receive the first data signal. Similarly, when the transmitting antenna unit ANT _ T1 operates at the second resonance frequency to transmit the second data signal, only the receiving antenna unit ANT11_ b operating at the second resonance frequency has higher transmission efficiency and can receive the second data signal.

In operation, in some embodiments, the transmitting antenna unit ANT _ T1 provides the first data signal and the second data signal via a Time-Division Multiplexing (TDM) scheme. Referring to fig. 1D, fig. 3 and fig. 4, fig. 4 is a partial operation timing diagram of the sub-pixel group SGP11 shown in fig. 1D. As shown in fig. 1D, 3 and 4, during the periods T11 and T12, the scan line G1_1 turns on the first row of pixel circuits X11, X12 and X13 of the pixel group GP 1. During the period T11, the transmitting COIL COIL _ T1 and the receiving COIL COIL _ R1 operate at the first resonant frequency, the receiving COIL COIL _ R1 receives the first data signal Vdata1 from the transmitting COIL COIL _ T1, and the data line D1_1 can write the first data signal Vdata1 into the pixel circuit X11. During the period T12, the transmitting COIL COIL _ T1 and the receiving COIL COIL _ R2 operate at the second resonant frequency, the receiving COIL COIL _ R2 receives the second data signal Vdata2 from the transmitting COIL COIL _ T1, and the data line D1_2 can write the second data signal Vdata2 into the pixel circuit X12.

During the periods T21 and T22, the scan line G1_1 turns off the first row of pixel circuits X11, X12 and X13 of the pixel group GP1, and the scan line G1_2 turns on the second row of pixel circuits X21, X22 and X23 of the pixel group GP 1. During the period T21, the transmitting COIL COIL _ T1 and the receiving COIL COIL _ R1 operate at the first resonant frequency, the receiving COIL COIL _ R1 receives the first data signal Vdata1 from the transmitting COIL COIL _ T1, and the data line D1_1 can write the first data signal Vdata1 into the pixel circuit X21. During the period T22, the transmitting COIL COIL _ T1 and the receiving COIL COIL _ R2 operate at the second resonant frequency, the receiving COIL COIL _ R2 receives the second data signal Vdata2 from the transmitting COIL COIL _ T1, and the data line D1_2 can write the second data signal Vdata2 into the pixel circuit X22.

Operationally, in some embodiments, the transmit antenna unit ANT _ T1 provides the first data signal and the second data signal via a Frequency-division multiplexing (FDM) mechanism. Referring to fig. 1D, fig. 3 and fig. 5, fig. 5 is a partial operation timing diagram of the sub-pixel group SGP11 shown in fig. 1D. As shown in fig. 1D, 3 and 5, during the period T1, the scan line G1_1 turns on the first row of pixel circuits X11, X12 and X13 of the pixel group GP1, and the transmitting COIL _ T1 transmits the first data signal Vdata1 'of the first resonant frequency and the second data signal Vdata 2' of the second resonant frequency. The receiving COIL _ R1, which operates at the first resonance frequency, receives the first data signal Vdata1 'from the transmitting COIL _ T1, and the data line D1_1 writes the first data signal Vdata 1' into the pixel circuit X11. The receiving COIL _ R2 operating at the second resonance frequency receives the second data signal Vdata2 'from the transmitting COIL _ T1, and the data line D1_2 may write the second data signal Vdata 2' into the pixel circuit X12.

During the period T2, the scan line G1_1 turns off the first row of pixel circuits X11, X12 and X13 of the pixel group GP1, the scan line G1_2 turns on the second row of pixel circuits X21, X22 and X23 of the pixel group GP1, and the transmitting COIL _ T1 transmits the first data signal Vdata1 'of the first resonant frequency and the second data signal Vdata 2' of the second resonant frequency. The receiving COIL _ R1, which operates at the first resonance frequency, receives the first data signal Vdata1 'from the transmitting COIL _ T1, and the data line D1_1 writes the first data signal Vdata 1' into the pixel circuit X21. The receiving COIL _ R2 operating at the second resonance frequency receives the second data signal Vdata2 'from the transmitting COIL _ T1, and the data line D1_2 may write the second data signal Vdata 2' into the pixel circuit X22.

As can be seen from equations (1) and (2), when no external capacitor is provided to ensure that the first resonance frequency is different from the second resonance frequency, the internal capacitance value Cs1 or the inductance value Ls1 of the receiving antenna cell ANT11_ a is different from the internal capacitance value Cs2 or the inductance value Ls2 of the receiving antenna cell ANT11_ b. In this case, the geometry (e.g., coil thickness, shape, length, number of turns) and arrangement (e.g., pitch between the first and second turns) of the receiving antenna units ANT11_ a and ANT11_ b are designed to be adjusted to the proper internal capacitance values Cs1 and Cs2 and the inductance values Ls1 and Ls 2. Similarly, in order to ensure that the transmitting antenna unit ANT _ T1 can switch to operate at the first resonant frequency or the second resonant frequency, the external capacitance, geometry and configuration of the transmitting antenna unit ANT _ T1 should be designed to be adjusted to the appropriate equivalent capacitance Cp and inductance Lp.

Referring to fig. 6A and 6B, fig. 6A is an equivalent circuit diagram of the receiving antenna units ANT11_ a and ANT11_ B and the transmitting antenna unit ANT _ T1 shown in fig. 3, and fig. 6B is a T-type equivalent circuit (T circuit equivalent module) diagram of the receiving antenna units ANT11_ a and ANT11_ B and the transmitting antenna unit ANT _ T1 shown in fig. 3.

As shown in fig. 6A, the pixel circuit coupled to the receiving antenna unit ANT11_ a can be equivalent to, but not limited to, a resistor RL1 'and a capacitor CL 1' connected in series. The resistor RL1 'is connected in series with the capacitor CL 1' and then connected across an output terminal Vout 1. Similarly, the pixel circuit coupled to the receiving antenna cell ANT11_ b may be equivalent to, but not limited to, a resistor RL2 'and a capacitor CL 2' connected in series. The resistor RL2 'is connected in series with the capacitor CL 2' and then connected across an output terminal Vout 2.

The receiving COIL _ R1 of the receiving antenna unit ANT11_ a may be equivalent to the inductor Ls1 'and the capacitor Cs 1' connected in parallel, but is not limited thereto, and the receiving COIL _ R1 of the receiving antenna unit ANT11_ a may be equivalent to the inductor Ls1 'and the capacitor Cs 1' connected in series. Similarly, the COIL _ R2 of the receiving antenna unit ANT11_ b may be equivalent to the inductor Ls2 'and the capacitor Cs 2' connected in parallel, but is not limited thereto, and the COIL _ R2 of the receiving antenna unit ANT11_ b may be equivalent to the inductor Ls2 'and the capacitor Cs 2' connected in series. Resonance frequency f of COIL _ R1 and COIL _ R2_R1、f_R2Can be derived from the following formulae (1) to (2), respectively:

2πf_R1 ²ls1Cs1 ═ 1 formula (1)

2πf_R2 ²Ls2Cs2 ═ 1 formula (2)

Wherein Ls1 and Ls2 are inductance values of inductors Ls1 'and Ls 2' of the receiving COILs COIL _ R1 and COIL _ R2, respectively. Cs1 is the internal capacitance (internal _ capacitance) of the receiving COIL _ R1, or Cs1 is the equivalent capacitance of the receiving antenna unit ANT11_ a when there is an external capacitance, that is, Cs1 is the capacitance of the capacitor Cs 1' shown in fig. 6A. Cs2 is the internal capacitance of the receiving COIL _ R2, or Cs2 is the equivalent capacitance of the receiving antenna cell ANT11_ b when there is an external capacitance, that is, Cs2 is the capacitance of the capacitor Cs 2' shown in fig. 6A. M12 is the mutual inductance (mutual inductance) between COIL COIL _ R1 and COIL _ R2, which is related to the coupling coefficients and inductance values Ls1 and Ls2 of COIL COIL _ R1 and COIL _ R2.

The switching module SWM of the transmitting antenna unit ANT _ T1 is electrically coupled to a voltage source Vs, which is connected across two ends of an input terminal Vin. Transmitting COIL COIL _ T1 and outer of transmitting antenna unit ANT _ T1The partial capacitance can be equivalent to, but not limited to, an inductance Lp ' in series with parallel capacitors Cp1 ', Cp2 '. Resonance frequency f of the transmitting COIL _ T1_T1Can be derived from the following formula (3):

2πf_T1 ²LpCp 1 formula (3)

Where Lp is the inductance value of the inductor Lp' of the transmitting COIL _ T1, respectively. Cp is the equivalent capacitance value of the transmitting antenna element ANT _ T1. The switching module SWM and the capacitors Cp1 ', Cp 2' shown in fig. 6A may be equivalent to the equivalent capacitor Cp 'shown in fig. 6B, and the equivalent capacitor Cp' of the transmitting antenna unit ANT _ T1 has the equivalent capacitance value Cp in formula (1). Mp1 is the mutual inductance between the transmit COIL _ T1 and the receive COIL _ R1, which is related to the coupling coefficients and inductance values Lp, Ls1 of the transmit COIL _ T1 and the receive COIL _ R1. Similarly, Mp2 is the mutual inductance between transmit COIL _ T1 and receive COIL _ R2, which is related to the coupling coefficients and inductance values Lp, Ls2 of transmit COIL _ T1 and receive COIL _ R2.

Referring to fig. 7A, fig. 7A is a schematic diagram of a transmitting COIL _ T2 and receiving COILs COIL _ R3 and COIL _ R4 according to an embodiment of the invention. The receiver COILs COIL _ R3 and COIL _ R4 of fig. 7A may be applied to the sub-pixel group SGP11 of fig. 1D, or the transmitter COILs COIL _ T2 and the receiver COILs COIL _ R3 and COIL _ R4 of fig. 7A may be applied to the receiver antenna units ANT11_ a, ANT11_ b and the transmitter antenna unit ANT _ T1 of fig. 3.

Referring to fig. 6B and fig. 7A, the linewidths LW1 of the COIL _ R3 and COIL _ R4 are about 7 micrometers (μm). The receive COIL _ R3 comprises 8 turns, a first turn length L1 of approximately 6634 microns, a first turn width W1 of approximately 3297 microns, an inductance value Ls1 of approximately 236.35 nanohenry (nH), and a capacitance value Cs1 of approximately 107.28 nano farads (nF). The receiver COIL _ R4 comprises a 7-turn COIL having an inductance Ls2 of approximately 201.21 nanohenries and a capacitance Cs2 of approximately 13.99 nanofarads. The spacing PW1 in the X direction between the receiver COILs COIL _ R3 and COIL _ R4 is approximately 94 microns, and the spacing PL1 in the Y direction between the receiver COILs COIL _ R3 and COIL _ R4 is approximately 141 microns. The resistances RL1 ', RL 2' are approximately 3.9105246 kilo-ohms (klo Ohm, k Ω), and the capacitances CL1 ', CL 2' are approximately 30 pico-farads (pF).

The transmitting COIL _ T2 has one turn corresponding to the area of the receiving COIL _ R3, a length L2 of approximately 6634 microns, a width W2 of approximately 3297 microns, a line width LW2 of approximately 200 microns, a feed point spacing PW2 of approximately 100 microns, an inductance Lp of approximately 10.081 nanohenries, and an equivalent capacitance Cp of approximately 2.525 microfarads (μ F). The receiving COILs COIL _ R3 and COIL _ R4 are disposed on the same plane, and are separated from the transmitting COIL _ T2 by a distance DIS2 of approximately 3 mm. The coupling coefficient between receiver COILs COIL _ R3 and COIL _ R4 is approximately 0.68164, the coupling coefficient between transmitter COIL _ T2 and receiver COIL _ R3 is approximately 0.0423, and the coupling coefficient between transmitter COIL _ T2 and receiver COIL _ R4 is approximately 0.0399.

Whether the receiving antenna unit and the transmitting antenna unit meet the system requirements can be further judged through simulation. Referring to fig. 7B, fig. 7B is a graph illustrating a frequency response (frequency response) according to the frequency responses shown in fig. 7A and fig. 6B. The solid line represents the gain (gain) in decibels of the output terminal Vout1 and the input terminal Vin with respect to frequency, and the dashed line represents the gain in decibels of the output terminal Vout2 and the input terminal Vin with respect to frequency. As shown in fig. 7B, the gains of the output terminal Vout1 and the input terminal Vin have maximum values at a frequency of 1 megahertz (MHz), and the gains of the output terminal Vout2 and the input terminal Vin have maximum values at a frequency of 3 MHz. Therefore, when the transmission COIL _ T2 operates at 1 mhz and 3 mhz corresponding to the receiving COILs COIL _ R3 and COIL _ R4, respectively, signal interference can be avoided and transmission efficiency can be increased.

Referring to fig. 8A, fig. 8A is a schematic diagram of a transmitting COIL _ T3 and receiving COILs COIL _ R5 and COIL _ R6 according to an embodiment of the invention. The receiver COILs COIL _ R5 and COIL _ R6 of fig. 8A may be applied to the sub-pixel group SGP11 of fig. 1D, or the transmitter COILs COIL _ T3 and the receiver COILs COIL _ R5 and COIL _ R6 of fig. 8A may be applied to the receiver antenna units ANT11_ a, ANT11_ b and the transmitter antenna unit ANT _ T1 of fig. 3.

Referring to fig. 6B and fig. 8A, the linewidths LW3 of the COIL _ R5 and COIL _ R6 are about 7 μm. The receive COIL _ R5 comprises 8 turns, a first turn length L3 of approximately 4519 microns, a first turn width W3 of approximately 5083 microns, an inductance value Ls1 of approximately 364.6 nanohenries, and a capacitance value Cs1 of approximately 112.3 nanofarads. The receiver COIL _ R6 comprises a 7-turn COIL having an inductance Ls2 of approximately 330.9 nanohenries and a capacitance Cs2 of approximately 14.68 nanofarads. The spacing PW3 in the X direction between the receiver COILs COIL _ R5 and COIL _ R6 is approximately 94 microns, and the spacing PL3 in the Y direction between the receiver COILs COIL _ R5 and COIL _ R6 is approximately 141 microns. The resistance values of the resistors RL1 ', RL 2' are approximately 3.9105246 kilo-ohms, and the capacitance values of the capacitors CL1 ', CL 2' are approximately 30 picofarads.

The transmit COIL _ T3 has one turn corresponding to the area of the receive COIL _ R5, a length L4 of approximately 4519 microns, a width W4 of approximately 5083 microns, a line width LW4 of approximately 200 microns, a feed point spacing PW4 of approximately 100 microns, an inductance Lp of approximately 5.937 nanohenries, and an equivalent capacitance Cp of approximately 4.596 microfarads. The receiving COILs COIL _ R5 and COIL _ R6 are disposed on the same plane, and are separated from the transmitting COIL _ T3 by a distance DIS3 of approximately 3 mm. The coupling coefficient between receiver COILs COIL _ R5 and COIL _ R6 is approximately 0.67942, the coupling coefficient between transmitter COIL _ T3 and receiver COIL _ R5 is approximately 0.0474, and the coupling coefficient between transmitter COIL _ T3 and receiver COIL _ R6 is approximately 0.0450.

Whether the receiving antenna unit and the transmitting antenna unit meet the system requirements can be further judged through simulation. Referring to fig. 8B, fig. 8B is a frequency response diagram according to the frequency response diagrams shown in fig. 8A and fig. 6B. The solid line represents the change of the gain decibel value of the output terminal Vout1 and the input terminal Vin with respect to the frequency, and the dotted line represents the change of the gain decibel value of the output terminal Vout2 and the input terminal Vin with respect to the frequency. As shown in fig. 8B, the gains of the output terminal Vout1 and the input terminal Vin are maximum at a frequency of 1 mhz, and the gains of the output terminal Vout2 and the input terminal Vin are maximum at a frequency of 3 mhz. Therefore, when the transmission COIL _ T3 operates at 1 mhz and 3 mhz corresponding to the receiving COILs COIL _ R5 and COIL _ R6, respectively, signal interference can be avoided and transmission efficiency can be increased.

Referring to fig. 9, fig. 9 is a schematic diagram illustrating a display device 90 according to an embodiment of the invention. The display device 90 shown in fig. 9 is substantially similar to the display device 20 shown in fig. 2, except that the display device 90 includes

electronic element layers

227a, 227b, as compared to the electronic element layer 227 of the display device 20. In the present embodiment, the pixel groups GP1 to GPm, GP1 'to GPm', the data lines D1_1 to Dm _6, D1_1 'to Dm _ 6', the receiving antenna units ANT11_ a to ANT nm _ a, and the scan lines G1_1 to Gn _3, G1_1 'to Gn _ 3' shown in fig. 9 are all disposed in the electronic element layer 227a shown in fig. 9, and the receiving antenna units ANT11_ b to ANT nm _ b shown in fig. 1A are disposed in the electronic element layer 227b shown in fig. 9. In other embodiments, the display device 90 further comprises an insulating layer to electrically isolate the

electronic device layers

227a, 227 b.

In some embodiments, as shown in fig. 1D, the receiving COILs COIL _ R1 of the receiving antenna unit ANT11_ a and COIL _ R1 and COIL _ R2 of the receiving antenna unit ANT11_ b surround each other to share the area of the sub-pixel group SGP11, and overlap in the X direction and the Y direction. In some embodiments, the receive coils partially overlap in the Z-direction. Referring to fig. 9 and 10, fig. 10 is a schematic diagram of receiving antenna units ANT11_ c through ANT22_ d according to an embodiment of the invention.

The connection element configurations of the receiving antenna units ANT11_ c to ANT22_ d shown in fig. 10 are substantially similar to the connection element configurations of the receiving antenna units ANT11_ a to ANT22_ b shown in fig. 1A, except that the receiving antenna units ANT11_ c to ANT22_ c and the receiving antenna units ANT11_ d to ANT22_ d are disposed on different planes and overlap in the Z direction. For example, the receiving antenna units ANT11_ c through ANT22_ c shown in fig. 10 are disposed in the electronic device layer 227a shown in fig. 9, and the receiving antenna units ANT11_ d through ANT22_ d shown in fig. 10 are disposed in the electronic device layer 227b shown in fig. 9, but not limited thereto.

Referring to fig. 9 and 11, fig. 11 is a schematic diagram of receiving antenna units ANT11_ e-ANT 22_ f according to an embodiment of the invention. The connection element configurations of the receiving antenna units ANT11_ e to ANT22_ f shown in fig. 11 are substantially similar to the connection element configurations of the receiving antenna units ANT11_ a to ANT22_ b shown in fig. 1A, except that the receiving antenna units ANT11_ e to ANT33_ e and the receiving antenna units ANT11_ f to ANT22_ f are disposed on different planes and are misaligned in the X direction and the Y direction, so that only partial sections overlap in the Z direction. In addition, in some embodiments, the areas of the receive antenna elements ANT11_ e through ANT33_ e may be different from the areas of the receive antenna elements ANT11_ f through ANT22_ f.

In summary, by applying the above embodiments, the antenna units can be arranged around each other along the edge of the sub-pixel group to share the area of the sub-pixel group, so as to solve the problem that the antenna units are arranged by further dividing the sub-pixel group into a plurality of blocks, thereby increasing the area and magnetic flux of each antenna unit. Furthermore, by operating each adjacent or surrounding antenna unit at different resonant frequencies, cross-interference of signals can be avoided. And, the antenna units are respectively arranged corresponding to the black matrix patterns, so that the aperture ratio can be improved. In addition, the data signal is transmitted by wireless communication, which is beneficial to realizing a large-size high-resolution display panel.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A display device, comprising:

a plurality of sub-pixel groups disposed in a display area (active area), each of the plurality of sub-pixel groups including a plurality of pixel circuits; and

a plurality of receive antenna elements comprising:

a first receiving antenna unit for providing a first data signal to at least one first pixel circuit of the plurality of pixel circuits; and

a second receiving antenna unit for providing a second data signal to at least one second pixel circuit of the plurality of pixel circuits, wherein the first receiving antenna unit and the second receiving antenna unit are partially overlapped in at least one direction;

each of the first receiving antenna units and each of the second receiving antenna units are arranged along the edges of the sub-pixel groups to share the areas of the sub-pixel groups;

an electronic element layer; wherein

The first receiving antenna unit and the second receiving antenna unit are both arranged on the electronic element layer.

2. The display device of claim 1, wherein the first receiving antenna unit operates at a first resonant frequency and the second receiving antenna unit operates at a second resonant frequency, the first resonant frequency being different from the second resonant frequency.

3. The display device as claimed in claim 1, wherein the first receiving antenna unit and the second receiving antenna unit have different internal capacitance (impedance) or inductance values.

4. The display device according to claim 1, wherein the first receiving antenna unit and the second receiving antenna unit partially overlap in a first direction of the at least one direction and in a second direction of the at least one direction, the first direction being perpendicular to the second direction.

5. The display device according to claim 1, wherein the first receiving antenna unit comprises a first receiving coil, the second receiving antenna unit comprises a second receiving coil, an inner side of a first turn of the first receiving coil is disposed around an outer side of a first turn of the second receiving coil, and an inner side of the first turn of the second receiving coil is disposed around an outer side of a second turn of the first receiving coil.

6. The display device of claim 5, wherein the first receiving coil and the second receiving coil are respectively disposed corresponding to a Black Matrix (BM) pattern of a Color Filter (CF).

7. The display device of claim 1, further comprising:

at least one transmitting antenna unit, wherein a first transmitting antenna unit of the at least one transmitting antenna unit is configured to selectively provide the first data signal to the first receiving antenna unit or provide the second data signal to the second receiving antenna unit.

8. The display device of claim 7, wherein the first transmit antenna unit provides the first data signal or the second data signal via a time division multiplexing scheme or a frequency division multiplexing scheme.

9. The display device of claim 7, wherein the first transmit antenna unit comprises:

a first transmitting coil for providing the first data signal or the second data signal;

a first capacitor;

a second capacitor;

the switching module is coupled among the first transmitting coil, the first capacitor and the second capacitor and used for switching the first transmitting coil between the first capacitor and the second capacitor so as to switch the first transmitting coil to operate at a first resonance frequency or a second resonance frequency.

10. The display device according to claim 7, wherein a first receiving coil of the first receiving antenna unit, a second receiving coil of the second receiving antenna unit and a first transmitting coil are disposed in the display area, and an area of the first transmitting antenna unit is the same as a first area of the first receiving coil or a second area of the second receiving coil.