Near-to-eye display circuit, near-to-eye display device and electronic equipment

Abstract

The utility model is suitable for the technical field of near-to-eye display, and provides a near-to-eye display circuit, a near-to-eye display device and electronic equipment. The near-to-eye display circuit comprises a display array, the display array comprises x column connecting lines and y row connecting lines, each column connecting line is provided with y first bonding positions, and each row connecting line is provided with x second bonding positions, the bth first bonding position of the bth column connecting line and the bth second bonding position of the bth row connecting line are used for bonding the two ends of the light-emitting module respectively, x and y are natural numbers larger than 1, a is larger than or equal to 1 and smaller than or equal to x, and b is larger than or equal to 1 and smaller than or equal to y; the driving modules are correspondingly and electrically connected with the x column connecting lines and the y row connecting lines respectively and used for outputting corresponding column driving signals to the x column connecting lines respectively and outputting corresponding row driving signals to the y row connecting lines respectively so as to drive the light-emitting modules at the corresponding positions in the display array to emit light.

Description

Technical Field

[0001] The present application belongs to the field of near-eye display technology, and in particular, relates to a near-eye display circuit, a near-eye display device and an electronic device. Background Art

[0002] In recent years, Micro-LED (Micro Light Emitting Diode) display technology has received widespread attention in the field of near-eye display due to its advantages such as high luminous intensity, fast response speed, low power consumption (self-luminescence), long life and high resolution.

[0003] Traditional near-eye display circuits use AM (Active Matrix, active matrix drive or active addressing) to drive and control the light emission of Micro-LEDs. However, near-eye display circuits using AM drive have the following problems: each light-emitting unit requires a pixel circuit drive, resulting in high circuit costs and certain routing problems; there are inconsistencies between multiple pixel circuits caused by process deviations; the distance between two light-emitting units is limited by the pixel circuit area, affecting the fineness of the displayed image; and the display resolution is affected by the pixel circuit area. Utility Model Content

[0004] The embodiments of the present application provide a near-eye display circuit, a near-eye display device, and an electronic device, which can solve the problems existing in the traditional near-eye display circuit using AM drive.

[0005] In a first aspect, an embodiment of the present application provides a near-eye display circuit, which is applied to a near-eye display device, including:

[0006] A display array, the display array comprising x column connection lines and y row connection lines, each of the column connection lines having y first bonding positions, each of the row connection lines having x second bonding positions, the bth first bonding position of the ath column connection line and the ath second bonding position of the bth row connection line being respectively used to bond two ends of the light emitting module, wherein x and y are both natural numbers greater than 1, 1≤a≤x, 1≤b≤y; and

[0007] At least one driving module, the driving module is electrically connected to the x column connection lines and the y row connection lines respectively, and is used to output corresponding column driving signals to the x column connection lines respectively, and to output corresponding row driving signals to the y row connection lines respectively, so as to drive the light-emitting modules at corresponding positions in the display array to emit light.

[0008] According to the structure of the near-eye display circuit provided by the embodiment of the present application, it can be known that one end of a plurality of light-emitting modules is bonded to the row connection line in the present application, and the other ends of the plurality of light-emitting modules are respectively bonded to a plurality of column connection lines, and all column connection lines and all row connection lines are electrically connected to the driving module. When a specific x-th column connection line and y-th row connection line are selected by the driving module, the light-emitting module at the corresponding position will be lit, and the entire display array can be scanned point by point at high speed in this way to realize the display picture. It can be seen that the near-eye display circuit provided by the embodiment of the present application adopts PM (Passive Matrix, passive matrix drive or passive addressing) drive, that is, the light-emitting modules on each row connection line or each column connection line are driven by the driving module, that is, the same driving module is used, and the display array is only used to bond the light-emitting modules, and there is no need to set up the pixel circuit. In this way, the distance between the two light-emitting modules is no longer limited by the area of ​​the pixel circuit, and the distance between the two light-emitting modules can become smaller, which improves the fineness of the display picture to a certain extent; the display resolution is no longer affected by the area of ​​the pixel circuit; at the same time, the routing problem caused by the pixel circuit, the high circuit cost problem and the inconsistency problem caused by the process deviation between multiple pixel circuits are solved.

[0009] In a possible implementation of the first aspect, the display array includes n sub-display arrays, the number of the driving modules is m, and each of the driving modules is electrically connected to a row connection line and a column connection line in the corresponding sub-display array, wherein n and m are both natural numbers greater than or equal to 1, and m is less than or equal to n. The present application divides the display array into n sub-display arrays and increases the number of driving modules, so that the number of rows and columns to be driven by each driving module can be reduced, so that row scanning can be achieved faster (i.e., the faster the refresh rate), and the display effect can be optimized to a certain extent.

[0010] In a possible implementation of the first aspect, a first contact point is provided at the first bonding position, and a second contact point is provided at the second bonding position, and the first contact point and the second contact point are respectively used to bond two ends of the light emitting module. The present application sets contact points at the bonding positions to facilitate subsequent bonding of the light emitting module.

[0011] In a possible implementation manner of the first aspect, the first contact point is used to bond to an anode of the light emitting module, and the second contact point is used to bond to a cathode of the light emitting module, and the display array adopts a common cathode driving mode.

[0012] In a possible implementation of the first aspect, the first contact point is used to bond the cathode of the light emitting module, and the second contact point is used to bond the anode of the light emitting module, and the display array adopts a common anode drive mode. The display array can adopt a common anode drive mode or a common cathode drive mode to meet different application scenarios.

[0013] In a possible implementation of the first aspect, each of the driving modules includes a storage unit, an algorithm processing unit, an interface parsing unit, a timing control unit, a row driving unit, and a column driving unit, the storage unit is electrically connected to the interface parsing unit and the algorithm processing unit, respectively, the timing control unit is electrically connected to the algorithm processing unit, the row driving unit, and the column driving unit, respectively, the row driving unit is electrically connected to the row connection lines in the sub-display array, and the column driving unit is electrically connected to the column connection lines in the sub-display array.

[0014] In a possible implementation manner of the first aspect, the display array and the driving module are integrated on a chip, so that the control of the near-eye display circuit is more convenient, and the near-eye display circuit has a higher degree of integration and a smaller area.

[0015] In a second aspect, an embodiment of the present application provides a near-eye display device, comprising a plurality of light-emitting modules and the near-eye display circuit described in any one of the first aspects, wherein the plurality of light-emitting modules are correspondingly bonded to a display array of the near-eye display circuit.

[0016] In a possible implementation of the second aspect, all the light-emitting modules and the near-eye display circuit are integrated on one chip, so that the control of the near-eye display device is more convenient, and the near-eye display device has higher integration and smaller area.

[0017] In a third aspect, an embodiment of the present application provides an electronic device, comprising the near-eye display device described in any one of the second aspects.

[0018] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0019] The embodiment of the present application provides a near-eye display circuit, which is applied to a near-eye display device, including:

[0020] A display array, the display array comprising x column connection lines and y row connection lines, each column connection line having y first bonding positions, each row connection line having x second bonding positions, the bth first bonding position of the ath column connection line and the ath second bonding position of the bth row connection line are respectively used to bond two ends of the light emitting module, wherein x and y are both natural numbers greater than 1, 1≤a≤x, 1≤b≤y; and

[0021] At least one driving module, the driving modules are respectively electrically connected to the x column connection lines and the y row connection lines, and are used to output corresponding column driving signals to the x column connection lines and to output corresponding row driving signals to the y row connection lines, so as to drive the light-emitting modules at corresponding positions in the display array to emit light.

[0022] According to the structure of the near-eye display circuit provided by the embodiment of the present application, it can be known that one end of a number of light-emitting modules is bonded to the row connection line in the present application, and the other ends of the number of light-emitting modules are respectively bonded to a number of column connection lines, all column connection lines and all row connection lines are electrically connected to the driving module, and when a specific x-th column connection line and y-th row connection line are selected by the driving module, the light-emitting module at the corresponding position will be lit, and the entire display array can be scanned point by point at high speed in this way to realize the display picture. It can be seen that the near-eye display circuit provided by the embodiment of the present application adopts PM drive, that is, the light-emitting modules on each row connection line or each column connection line are driven by the driving module, that is, the same driving module is used, then the display array is only used to bond the light-emitting modules, and there is no need to set up a pixel circuit, so that the distance between the two light-emitting modules is no longer limited by the area of ​​the pixel circuit, and the distance between the two light-emitting modules can become smaller, which improves the fineness of the display picture to a certain extent; the display resolution is no longer affected by the area of ​​the pixel circuit; at the same time, it solves the wiring problems caused by the pixel circuit, the high circuit cost problem and the inconsistency problem caused by the process deviation between multiple pixel circuits.

[0023] In summary, the near-eye display circuit provided in the embodiments of the present application solves the problems existing in the traditional near-eye display circuit using AM drive.

[0024] It can be understood that the beneficial effects of the second to third aspects mentioned above can be found in the relevant description of the first aspect mentioned above, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 is a schematic diagram of the structure of a near-eye display circuit provided by an embodiment of the present application;

[0027] Figure 2 is a schematic structural diagram of a near-eye display circuit provided by another embodiment of the present application;

[0028] Figure 3is a schematic structural diagram of a near-eye display circuit provided by another embodiment of the present application;

[0029] Figure 4 is a schematic structural diagram of a near-eye display circuit provided by another embodiment of the present application;

[0030] Figure 5 is a schematic structural diagram of a near-eye display circuit provided by another embodiment of the present application;

[0031] Figure 6 yes Figure 1 The schematic diagram of the driving module in the near-eye display circuit shown in FIG. Figure 1 ;

[0032] Figure 7 yes Figure 1 The schematic diagram of the driving module in the near-eye display circuit shown in FIG. Figure 2 ;

[0033] Figure 8 yes Figure 1 Schematic diagram of control logic of the driving module in the near-eye display circuit shown in FIG. Figure 1 ;

[0034] Fig. 9 yes Figure 1 Schematic diagram of control logic of the driving module in the near-eye display circuit shown in FIG. Figure 2 ;

[0035] Fig.10 is a schematic structural diagram of a display device provided by an embodiment of the present application;

[0036] Fig.11 It is a schematic diagram of the structure of a display device provided in another embodiment of the present application.

[0037] In the figure: 10, display array; 11, sub-display array; 20, driving module; 21, storage unit; 22, algorithm processing unit; 23, interface analysis unit; 24, timing control unit; 25, row driving unit; 251, row counting subunit; 252, row control subunit; 26, column driving unit; 261, display counting subunit; 262, comparison subunit. DETAILED DESCRIPTION

[0038] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0039] It should be understood that when used in the present specification and the appended claims, the term "comprising" indicates the presence of described features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0040] As used in the specification and appended claims of this application, the term "if" can be interpreted as "when" or "uponce" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrase "if it is determined" or "if [described condition or event] is detected" can be interpreted as meaning "uponce it is determined" or "in response to determining" or "uponce [described condition or event] is detected" or "in response to detecting [described condition or event]", depending on the context.

[0041] In addition, in the description of the present application specification and the appended claims, the terms "first", "second", "third", etc. are only used to distinguish the descriptions and cannot be understood as indicating or implying relative importance.

[0042] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0043] The architecture of a traditional near-eye display circuit includes a display pixel array and a drive control circuit, wherein the display pixel array is composed of a plurality of pixel circuits, each pixel circuit is used to drive a light-emitting unit (ie, AM drive). The drive control circuit is used to control the pixel circuit to realize the display of the picture.

[0044] The architecture of traditional near-eye display circuits has the following problems: each light-emitting unit requires a pixel circuit to drive it, which leads to high circuit costs and certain routing problems: the longer the routing line, the greater the resistance on the routing line, resulting in a weakened driving capability; at the same time, the distance between the two light-emitting units is limited by the area of ​​the pixel circuit, affecting the fineness of the displayed image; there are inconsistencies caused by process bias between multiple pixel circuits; and the display resolution is affected by the area of ​​the pixel circuit.

[0045] In view of the above problems, the present application provides a near-eye display circuit, which is applied to a near-eye display device, such as Figure 1 As shown, the near-eye display circuit includes a display array 10 and at least one driving module 20. The display array 10 includes x column connection lines and y row connection lines, each column connection line has y first bonding positions L1, each row connection line has x second bonding positions L2, the bth first bonding position L1 of the ath column connection line and the ath second bonding position L2 of the bth row connection line are respectively used to bond the two ends of the light-emitting module, wherein x and y are both natural numbers greater than 1, 1≤a≤x, 1≤b≤y. It should be noted that the y first bonding positions L1 are dispersedly distributed on each column connection line, the x second bonding positions L2 are dispersedly distributed on each row connection line, the bth first bonding position L1 of the ath column connection line and the ath second bonding position L2 of the bth row connection line do not intersect, and the first bonding position L1 and the second bonding position L2 can be bonding areas or bonding points. The present application does not limit the size, shape and position of the first bonding position L1 and the second bonding position L2, as long as the first bonding position L1 and the second bonding position L2 can be used to bond the two ends of the light-emitting module respectively. Figure 1 Only an example of a bonded light emitting module is shown. In practical applications, the size and position of the first bonding position L1 and the second bonding position L2 can be adjusted according to actual conditions to meet different application scenarios.

[0046] The driving module 20 is electrically connected to the x column connection lines and the y row connection lines respectively, and is used to output corresponding column driving signals to the x column connection lines and output corresponding row driving signals to the y row connection lines respectively, so as to drive the light-emitting modules at corresponding positions in the display array 10 to emit light.

[0047] In the embodiment of the present application, when a plurality of light-emitting modules are bonded in the display array 10, a light-emitting display array is formed, and the light-emitting display array can be controlled to display by driving the driving module 20. When a row and a column in the display array 10 are simultaneously selected by the driving module 20, the light-emitting modules at the corresponding positions of the row and the column are driven to display.

[0048] According to the structure of the near-eye display circuit provided in the embodiment of the present application, it can be known that one end of a plurality of light-emitting modules is bonded to the row connection line in the present application, and the other ends of the plurality of light-emitting modules are respectively bonded to a plurality of column connection lines, and all column connection lines and all row connection lines are electrically connected to the driving module 20. When a specific x-th column connection line and y-th row connection line are selected by the driving module 20, the light-emitting modules at the corresponding positions will be lit, and the entire display array 10 can realize the display picture by performing high-speed point-by-point scanning in this way. It can be seen that the near-eye display circuit provided in the embodiment of the present application adopts PM driving, that is, the light-emitting modules on each row connection line or each column connection line are driven by the driving module 20, that is, the same driving module 20 is used, and the display array 10 is only used for bonding light-emitting modules, and there is no need to set up pixel circuits. In this way, the distance between the two light-emitting modules is no longer limited by the area of ​​the pixel circuit, and the distance between the two light-emitting modules can become smaller, thereby improving the fineness of the display picture to a certain extent; the display resolution is no longer affected by the area of ​​the pixel circuit; at the same time, the routing problem caused by the pixel circuit, the high circuit cost problem, and the inconsistency problem caused by the process deviation between multiple pixel circuits are solved.

[0049] In summary, the near-eye display circuit provided in the embodiments of the present application solves the problems existing in the traditional near-eye display circuit using AM drive.

[0050] In the embodiment of the present application, the display array 10 and the driving module 20 are integrated on one chip, which makes the control of the near-eye display circuit more convenient and makes the near-eye display circuit more integrated and smaller in area.

[0051] For example, when the driving module 20 is an integrated circuit, the display array 10 and the driving module 20 can be integrated as a whole on a chip, so that the control of the near-eye display circuit is more convenient, and the near-eye display circuit has a higher degree of integration and a smaller area. It should be noted that the chip can be made of a silicon wafer or silicon material.

[0052] Exemplarily, when the driving module 20 is a driving chip, the display array 10 and the driving module 20 can be integrated on the same glass substrate or silicon substrate, so that the manufacturing cost of the near-eye display circuit is lower and the heat dissipation performance is better.

[0053] Exemplarily, the light emitting module is a Micro-LED. It should be noted that in this embodiment, the light emitting module is only described as a Micro-LED, and is not limited thereto.

[0054] It should be noted that the bonding method of the light emitting module includes electrostatic force stamping, magnetic force stamping, elastic stamping or laser transfer, etc. The present application does not limit the bonding method, as long as the light emitting module is bonded to the display array 10 .

[0055] like Figure 2 and Figure 3 As shown, the display array 10 includes n sub-display arrays 11, the number of driving modules 20 is m, and each driving module 20 is electrically connected to the row connection lines and column connection lines in the corresponding sub-display array 11, wherein n and m are natural numbers greater than or equal to 1, and m is less than or equal to n. The present application divides the display array 10 into n sub-display arrays 11, and increases the number of driving modules 20, so that the number of rows and columns to be driven by each driving module 20 can be reduced, so that row scanning can be achieved faster (i.e., the faster the refresh rate), and the display effect can be optimized to a certain extent.

[0056] For example, Figure 2 As shown, the display array 10 includes two sub-display arrays 11, the number of driving modules 20 is two, and each driving module 20 is electrically connected to the row connection lines and column connection lines in the corresponding sub-display array 11. The present application divides the display array 10 into two sub-display arrays 11, which can reduce the number of rows and columns to be driven by each driving module 20, so that row scanning can be achieved faster to achieve better display effects.

[0057] For example, Figure 3 As shown, the display array 10 includes four sub-display arrays 11, and the number of driving modules 20 is four, and each driving module 20 is electrically connected to the row connection lines and column connection lines in the corresponding sub-display array 11. The present application divides the display array 10 into four sub-display arrays 11, further reducing the number of rows and columns to be driven by each driving module 20, so that row scanning can be achieved as quickly as possible, and the display effect can be further optimized.

[0058] like Figure 4 and Figure 5 As shown, a first contact point d1 is provided on the first bonding position L1, and a second contact point d2 is provided on the second bonding position L2. The first contact point d1 and the second contact point d2 are respectively used to bond the two ends of the light emitting module. It should be noted that the setting position of the first contact point d1 on the first bonding position L1 and the setting position of the second contact point d2 on the second bonding position L2 are not limited in this application, as long as the two ends of the light emitting module can be bonded. This application sets contact points at the bonding positions to facilitate the subsequent bonding of the light emitting module.

[0059] like Figure 4 As shown, the first contact point d1 is used to bond the anode of the light emitting module, and the second contact point d2 is used to bond the cathode of the light emitting module, and the display array 10 adopts a common cathode driving mode. Figure 5As shown, the first contact point d1 is used to bond the cathode of the light-emitting module, and the second contact point d2 is used to bond the anode of the light-emitting module, and the display array 10 adopts a common anode drive mode. The display array 10 can adopt a common anode drive mode or a common cathode drive mode to meet different application scenarios. Among them, the working principles of the common cathode drive mode and the common anode drive mode can refer to the existing relevant principles, which will not be repeated here.

[0060] like Figure 6 As shown, each driving module 20 includes a storage unit 21, an algorithm processing unit 22, an interface parsing unit 23, a timing control unit 24, a row driving unit 25 and a column driving unit 26. The storage unit 21 is electrically connected to the interface parsing unit 23 and the algorithm processing unit 22, respectively. The timing control unit 24 is electrically connected to the algorithm processing unit 22, the row driving unit 25 and the column driving unit 26, respectively. The row driving unit 25 is electrically connected to the row connection line in the sub-display array 11, and the column driving unit 26 is electrically connected to the column connection line in the sub-display array 11.

[0061] In the embodiment of the present application, the interface parsing unit 23 is used to receive display data, parse the display data, and transmit the parsed display data to the storage unit 21. The storage unit 21 is used to transmit the parsed display data to the algorithm processing unit 22. The algorithm processing unit 22 is used to receive configuration information and the parsed display data, perform algorithm processing on the parsed display data according to the configuration information, and obtain a time data signal. The timing control unit 24 is used to output a row selection control signal to the row driving unit 25 and a column selection control signal to the column driving unit 26 according to the time data signal, so as to select the light-emitting module at the corresponding position in the sub-display array 11 to emit light.

[0062] Exemplarily, the format and transmission protocol of the interface parsing unit 23 can be determined according to the size of the display array 10 and the display frame rate, and can use common interfaces such as IIC (Inter-Integrated Circuit) and SPI (Serial Peripheral Interface), or a custom interface.

[0063] Exemplarily, the storage unit 21 is a commonly used storage medium, such as SRAM (Static Random-Access Memory).

[0064] Exemplarily, the algorithms in the algorithm processing unit 22 include but are not limited to SPWM (Sine pulse width modulation) algorithms, compensation algorithms, calibration algorithms, etc., which are mainly used to calculate the opening time of each channel.

[0065] like Figure 7 As shown, the row driving unit 25 includes a row counting subunit 251 and a row controlling subunit 252 . The row counting subunit 251 is electrically connected to the timing control unit 24 and the row controlling subunit 252 , respectively. The row controlling subunit 252 is electrically connected to the row connecting lines in the sub display array 11 .

[0066] In the embodiment of the present application, the row generation counting subunit 251 is used to count according to the row selection control signal and output the first counting result to the row control subunit 252. The row control subunit 252 is used to output the row driving signal to the corresponding row connection line according to the first counting result. The control logic is as follows: Figure 8 As shown, the display data of the first row is displayed first, and then the display data of the second row is displayed, and so on, to display the entire screen.

[0067] like Figure 7 As shown, the column driving unit 26 includes a display counting subunit 261 and a comparison subunit 262 . The display counting subunit 261 is electrically connected to the timing control unit 24 and the comparison subunit 262 , respectively. The comparison subunit 262 is electrically connected to the column connection line in the sub-display array 11 .

[0068] In the embodiment of the present application, the display counting subunit 261 is used to count according to the column selection signal and output the second counting result to the comparison subunit 262. The comparison subunit 262 is used to output the column driving signal to the corresponding column connection line according to the second counting result. The control logic is as follows: Fig. 9 As shown, the opening of the corresponding row needs to be coordinated with the opening of the column channel. When the corresponding row is opened, the data of the row is displayed, wherein when CHNx is high and LINEy is low, it indicates that the light-emitting module at the corresponding position emits light.

[0069] The present application also provides a near-eye display device, such as Fig.10 and Fig.11 As shown, the near-eye display device includes a plurality of light-emitting modules and the above-mentioned near-eye display circuit, and the plurality of light-emitting modules are correspondingly bonded to the display array 10 of the near-eye display circuit.

[0070] In an embodiment of the present application, the display array 10 in the near-eye display circuit includes x column connection lines and y row connection lines, each column connection line has y first bonding positions, each row connection line has x second bonding positions, and the bth first bonding position of the ath column connection line and the ath second bonding position of the bth row connection line are respectively bonded to the two ends of the light-emitting module, wherein x and y are both natural numbers greater than 1, 1≤a≤x, 1≤b≤y. The driving module 20 in the near-eye display circuit is respectively electrically connected to the x column connection lines and the y row connection lines in the display array 10, and is used to output corresponding column driving signals to the x column connection lines in the display array 10, and to output corresponding row driving signals to the y row connection lines in the display array 10, so as to drive the light-emitting modules at corresponding positions in the display array 10 to emit light.

[0071] According to the structure of the near-eye display circuit provided in the embodiment of the present application, it can be known that one end of a plurality of light-emitting modules is bonded to the row connection line in the present application, and the other ends of the plurality of light-emitting modules are respectively bonded to a plurality of column connection lines, and all column connection lines and all row connection lines are electrically connected to the driving module 20. When a specific x-th column connection line and y-th row connection line are selected by the driving module 20, the light-emitting modules at the corresponding positions will be lit, and the entire display array 10 can realize the display picture by performing high-speed point-by-point scanning in this way. It can be seen that the near-eye display device provided in the embodiment of the present application adopts PM driving, that is, the light-emitting modules on each row connection line or each column connection line are driven by the driving module 20, that is, the same driving module 20 is used, and the display array 10 is only used for bonding the light-emitting modules, and there is no need to set up a pixel circuit. In this way, the distance between the two light-emitting modules is no longer limited by the area of ​​the pixel circuit, and the distance between the two light-emitting modules can become smaller, thereby improving the fineness of the display picture to a certain extent; the display resolution is no longer affected by the area of ​​the pixel circuit; at the same time, the routing problem caused by the pixel circuit, the high circuit cost problem, and the inconsistency problem caused by the process deviation between multiple pixel circuits are solved.

[0072] like Fig.10 As shown, the cathode of the light emitting module is bonded to the second bonding position on the row connection line, and the anode of the light emitting module is bonded to the first bonding position on the column connection line, and the display array 10 adopts a common cathode driving mode.

[0073] like Fig.11 As shown, the cathode of the light emitting module is bonded to the first bonding position on the column connection line, and the anode of the light emitting module is bonded to the second bonding position on the row connection line, and the display array 10 adopts a common anode driving mode.

[0074] The display array 10 can adopt a common anode driving mode or a common cathode driving mode to meet different application scenarios. The working principles of the common cathode driving mode and the common anode driving mode can refer to the existing relevant principles, which will not be repeated here.

[0075] In the embodiment of the present application, all light-emitting modules and near-eye display circuits are integrated on one chip, which makes the control of the near-eye display device more convenient and makes the near-eye display device more integrated and smaller in area.

[0076] For example, when the driving module 20 is an integrated circuit, the display array 10, the driving module 20 and all the light-emitting modules can be integrated as a whole on a chip, so that the control of the near-eye display device is more convenient, and the near-eye display device has a higher degree of integration and a smaller area. It should be noted that the chip can be made of a silicon wafer or silicon material.

[0077] Exemplarily, when the driving module 20 is a driving chip, the display array 10, the driving module 20 and all the light-emitting modules can be integrated on the same glass substrate or silicon substrate, so that the manufacturing cost of the near-eye display device is lower and the heat dissipation performance is better.

[0078] Exemplarily, the light emitting module is a Micro-LED. It should be noted that in this embodiment, the light emitting module is only described as a Micro-LED, and is not limited thereto.

[0079] It should be noted that the light emitting module may be bonded by electrostatic force stamping, magnetic force stamping, elastic stamping or laser transfer, etc. The present application does not limit the bonding method, as long as the light emitting module is bonded to the display array 10 of the near-eye display circuit.

[0080] The embodiment of the present application further provides an electronic device, including the near-eye display device described above. For the specific working principle, please refer to the description of the working principle of the near-eye display device described above, which will not be repeated here.

[0081] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A near-eye display circuit, applied to a near-eye display device, characterized in that: include: A display array, the display array comprising x column connection lines and y row connection lines, each of the column connection lines having y first bonding positions, each of the row connection lines having x second bonding positions, the bth first bonding position of the ath column connection line and the ath second bonding position of the bth row connection line being respectively used to bond two ends of the light emitting module, wherein x and y are both natural numbers greater than 1, 1≤a≤x, 1≤b≤y; as well as At least one driving module, the driving module is electrically connected to the x column connection lines and the y row connection lines respectively, and is used to output corresponding column driving signals to the x column connection lines respectively, and to output corresponding row driving signals to the y row connection lines respectively, so as to drive the light-emitting modules at corresponding positions in the display array to emit light.

2. The near-eye display circuit according to claim 1, characterized in that: The display array includes n sub-display arrays, the number of the driving modules is m, each of the driving modules is electrically connected to the row connection lines and column connection lines in the corresponding sub-display array, wherein n and m are both natural numbers greater than or equal to 1, and m is less than or equal to n.

3. The near-eye display circuit according to claim 1 or 2, characterized in that: A first contact point is provided at the first bonding position, and a second contact point is provided at the second bonding position. The first contact point and the second contact point are respectively used to bond two ends of the light emitting module.

4. The near-eye display circuit according to claim 3, characterized in that: The first contact point is used to bond to the anode of the light emitting module, and the second contact point is used to bond to the cathode of the light emitting module.

5. The near-eye display circuit according to claim 3, characterized in that: The first contact point is used to bond with the cathode of the light emitting module, and the second contact point is used to bond with the anode of the light emitting module.

6. The near-eye display circuit according to claim 2, characterized in that: Each of the driving modules includes a storage unit, an algorithm processing unit, an interface parsing unit, a timing control unit, a row driving unit and a column driving unit. The storage unit is electrically connected to the interface parsing unit and the algorithm processing unit, respectively. The timing control unit is electrically connected to the algorithm processing unit, the row driving unit and the column driving unit, respectively. The row driving unit is electrically connected to the row connection lines in the sub-display array, and the column driving unit is electrically connected to the column connection lines in the sub-display array.

7. The near-eye display circuit according to claim 1, characterized in that: The display array and the driving module are integrated on one chip.

8. A near-eye display device, characterized in that: It comprises a plurality of light-emitting modules and the near-eye display circuit according to any one of claims 1 to 7, wherein the plurality of light-emitting modules are correspondingly bonded to a display array of the near-eye display circuit.

9. The near-eye display device according to claim 8, characterized in that: All the light-emitting modules and the near-eye display circuit are integrated on one chip.

10. An electronic device, characterized in that: Includes the near-eye display device as described in claim 8 or 9.

Images