Display device

Abstract

The present disclosure discloses a display device, comprising a glass substrate and a plurality of light emitting diodes. The glass substrate comprises a first side and a second side. The light emitting diodes comprise a first light emitting diode and a second light emitting diode. A first anode signal received by the first light emitting diode has a first anode signal difference compared to a reference anode signal, a second anode signal received by the second light emitting diode has a second anode signal difference compared to the reference anode signal, and the first anode signal difference is smaller than the second anode signal difference. A first cathode signal received by the first light emitting diode has a first cathode signal difference compared to a reference cathode signal, a second cathode signal received by the second light emitting diode has a second cathode signal difference compared to the reference cathode signal, and the first cathode signal difference is larger than the second cathode signal difference.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a display device, and in particular, to a display device including a glass substrate and a plurality of light emitting diodes. BACKGROUND

[0002] Currently, the driving circuit design of the display is mostly located on one side of the lamp panel. Such design makes the impedance value close to the driving circuit smaller, the impedance value far from the driving circuit larger, and the current flowing through a single light emitting diode (LED) has different sizes due to the difference in line resistance on the lamp panel, causing the problem of uneven brightness of the display. SUMMARY

[0003] One embodiment of the present disclosure discloses a display device including a glass substrate and a plurality of light emitting diodes. The glass substrate includes a first side and a second side, and the first side and the second side are opposite sides of the glass substrate. The plurality of light emitting diodes is disposed on the glass substrate, and the plurality of light emitting diodes is arranged in a column extending from the first side to the second side. The plurality of light emitting diodes includes a first light emitting diode adjacent to the first side and a second light emitting diode adjacent to the second side. The first light emitting diode receives a first anode signal having a first anode signal difference compared to a reference anode signal, and the second light emitting diode receives a second anode signal having a second anode signal difference compared to the reference anode signal, and the first anode signal difference is smaller than the second anode signal difference. The first light emitting diode receives a first cathode signal having a first cathode signal difference compared to a reference cathode signal, and the second light emitting diode receives a second cathode signal having a second cathode signal difference compared to the reference cathode signal, and the first cathode signal difference is larger than the second cathode signal difference.

[0004] Another embodiment of the present disclosure discloses a display device including a glass substrate and a plurality of light emitting diodes. The glass substrate includes a first side and a second side. The first side and the second side are opposite sides of the glass substrate. The plurality of light emitting diodes is disposed on the glass substrate, and the plurality of light emitting diodes is arranged in a column extending from the first side to the second side. Each of the plurality of light emitting diodes receives a first anode signal, a second anode signal, a first cathode signal, and a second cathode signal. The first anode signal has a first anode signal difference compared to a first reference anode signal, the second anode signal has a second anode signal difference compared to a second reference anode signal, the first cathode signal has a first cathode signal difference compared to a first reference cathode signal, and the second cathode signal has a second cathode signal difference compared to a second reference cathode signal. The plurality of light emitting diodes closer to the second side has a larger first anode signal difference and a larger first cathode signal difference, and the plurality of light emitting diodes closer to the first side has a larger second anode signal difference and a larger second cathode signal difference. BRIEF DESCRIPTION OF DRAWINGS

[0005] In order to make the above and other purposes, features, advantages and embodiments of the present disclosure more obvious and easy to understand, the following describes the drawings of the specification:

[0006] Figure 1 A circuit architecture diagram of a display device according to some embodiments of the present disclosure.

[0007] Figure 2 A circuit architecture diagram of a display device according to some embodiments of the present disclosure.

[0008] Figure 3 A circuit architecture diagram of a display device according to some embodiments of the present disclosure.

[0009] Figure 4 A circuit architecture diagram of a display device according to some embodiments of the present disclosure.

[0010] Explanation of reference signs:

[0011] In order to make the above and other purposes, features, advantages and embodiments of the present disclosure more obvious and easy to understand, the following describes the drawings of the specification:

[0012] 100: display device

[0013] 110: light emitting diode

[0014] 110a: first light emitting diode

[0015] 110b: second light emitting diode

[0016] 110c: third light emitting diode

[0017] 120: glass substrate

[0018] 140: drive circuit

[0019] 142: anode signal terminal

[0020] 144: cathode signal terminal

[0021] 220: level conversion circuit

[0022] 300: display device

[0023] 340: first drive circuit

[0024] 342: anode signal terminal

[0025] 360: second drive circuit

[0026] 364: cathode signal terminal

[0027] 400: display device

[0028] 440: first driving circuit

[0029] 442: anode signal terminal

[0030] 444: cathode signal terminal

[0031] 460: second driving circuit

[0032] 462: anode signal terminal

[0033] 464: cathode signal terminal

[0034] L11: first wire

[0035] L12: second wire

[0036] L13: third wire

[0037] L31: first wire

[0038] L32: second wire

[0039] L41: first wire

[0040] L42: second wire

[0041] P11: first anode signal

[0042] P12: second anode signal

[0043] P13: third anode signal

[0044] P41: first anode signal

[0045] P42: second anode signal

[0046] N11: first cathode signal

[0047] N12: second cathode signal

[0048] N13: third cathode signal

[0049] N41: first cathode signal

[0050] N42: second cathode signal DETAILED DESCRIPTION

[0051] The following detailed description is provided to understand the embodiments of the present disclosure. The provided embodiments are not intended to limit the scope of the present disclosure, and the description of the structure and operation is not intended to limit the execution order. Any structure recombined by elements, any device produced with equivalent technical effects, is within the scope of the present disclosure. In addition, the drawings are for illustration only and are not drawn to scale. For ease of understanding, the same elements or similar elements will be described with the same reference numerals in the following description.

[0052] As used throughout this document and in the claims, the terms used are generally intended in their plain English usage, unless otherwise indicated by the context of the description or claims.

[0053] Also, as used in the description herein and throughout the claims, the terms "comprise", "comprising", "including", "including", "having", "contain", "containing" or variants thereof are open-ended, meaning that "comprising" does not exclude additional, unrecited elements or method steps. Also, as used in the description herein and throughout the claims, "and / or", includes any one of the associated listed items, individually and all combinations and permutations of the associated listed items.

[0054] In this document, when a component is referred to as being "connected", "coupled", or "electrically connected" to another component, it can be directly connected, directly coupled, or directly electrically connected to the other component, or there can be an additional component between the two components, which is indirectly connected, indirectly coupled, or indirectly electrically connected to the other component. However, when a component is referred to as being "directly connected", "directly coupled", or "directly electrically connected" to another component, it should be understood that there is no additional component between the two components. In addition, when a component is referred to as being "wired", "communicatively connected" to another component, it can be indirectly wired and / or wirelessly communicated with the other component through other components, or it can be physically connected to the other component without passing through other components. In addition, although the terms "first", "second", and the like are used herein to describe different components or operations, the terms are used only to distinguish different components or operations described by the same technical terms.

[0055] One embodiment of the present disclosure discloses a display device. Please refer to Figure 1 , Figure 1 FIG. 1 is a circuit architecture diagram of a display device 100 according to some embodiments of the present disclosure. The display device 100 includes a glass substrate 120 and a plurality of light emitting diodes 110. The plurality of light emitting diodes 110 are disposed on the glass substrate 120, and the plurality of light emitting diodes 110 are arranged in a column, as shown in the embodiment of FIG. 1. In the embodiment of FIG. 1, the light emitting diodes 110 arranged in a column extend along the horizontal direction from one side of the glass substrate 120 to the opposite side. For example, the plurality of light emitting diodes 110 are sequentially arranged from the left side of the glass substrate 120 to the right side of the glass substrate 120, as shown in the embodiment of FIG. 1. Figure 1 Figure 1 ​The illustration is for illustrative purposes only, but this disclosure does not require a specific axis. In other words, a plurality of light-emitting diodes 110 are arranged laterally in rows on the glass substrate 120, with each row perpendicular to a first side (e.g., the left side of the glass substrate 120) and a second side (e.g., the right side of the glass substrate 120). For example, one row contains forty-eight light-emitting diodes 110. It should be noted that the number of light-emitting diodes 110 included in the glass substrate 120 is not intended to limit the scope of this disclosure, and the number of light-emitting diodes 110 can be adjusted according to actual needs. In one embodiment, each of the light-emitting diodes 110 includes an anode terminal and a cathode terminal, the anode terminal being used to receive an anode signal and the cathode terminal being used to receive a cathode signal.

[0056] like Figure 1 As shown, the plurality of light-emitting diodes 110 include a first light-emitting diode 110a adjacent to the left and a second light-emitting diode 110b adjacent to the right. Figure 1 In the row of light-emitting diodes 110 shown, the leftmost light-emitting diode 110 (that is, the first side closest to the glass substrate 120) is the first light-emitting diode 110a, and the rightmost light-emitting diode 110 (that is, the second side closest to the glass substrate 120) is the second light-emitting diode 110b. There are a plurality of other light-emitting diodes 110 between the first light-emitting diode 110a and the second light-emitting diode 110b.

[0057] In one embodiment, the display device 100 includes a driving circuit 140 for providing power and driving light-emitting diodes 110 on a glass substrate 120. The driving circuit 140 includes a plurality of anode signal terminals 142 for sending anode signals to the light-emitting diodes 110, and a plurality of cathode signal terminals 144 for sending cathode signals to the light-emitting diodes 110. In this embodiment, as... Figure 1 As shown, the driving circuit 140 is located near the left side of the glass substrate 120. The anode signal terminal 142 is coupled to the light-emitting diode 110, and the cathode signal terminal 144 is coupled to the light-emitting diode 110. For the sake of simplicity in explanation and illustration, Figure 1 Only one set of anode signal terminals 142 and cathode signal terminals 144 is shown, corresponding to one column of light-emitting diodes 110. In one embodiment, the driving circuit 140 includes multiple sets of anode signal terminals 142 and cathode signal terminals 144, and corresponds to each column of light-emitting diodes 110 on the glass substrate 120.

[0058] In one embodiment, the driving circuit 140 is coupled to a light-emitting diode 110 on a glass substrate 120 via multiple traces. In this embodiment, the display device 110 further includes a first trace L11, a second trace L12, and a third trace L13. The first trace L11 is coupled between the driving circuit 140 and the light-emitting diode 110. Specifically, the first trace L11 is coupled from the anode signal terminal 142 to the anode terminal of the light-emitting diode 110 to transmit the anode signal generated by the driving circuit 140 to the light-emitting diode 110. The second trace L12 is coupled to the light-emitting diode 110, and the second trace L12 connects to the cathode terminal of the light-emitting diode 110. The third trace L13 is coupled between the second trace L12 and the driving circuit 140, and the third trace L13 crosses from the left to the right and connects to the second trace L12 near the right side. In detail, the third trace L13 extends to the right from the cathode signal terminal 144 of the driving circuit 140 and is coupled to the second trace L12 to transmit the cathode signal generated by the driving circuit 140 to the second trace L12. The second trace L12 then transmits the cathode signal to the light-emitting diode 110. For example... Figure 1 As shown, the third trace L13 is coupled to the second trace L12 near the right side. The connection between the second trace L12 and the third trace L13 resembles an inverted "ㄈ" shape.

[0059] like Figure 1 As shown, the anode signal terminal 142 of the driving circuit 140 sends a first anode signal P11 to the first light-emitting diode 110a and sends a second anode signal P12 to the second light-emitting diode 110b. The cathode signal terminal 144 of the driving circuit 140 sends the first cathode signal N11 to the first light-emitting diode 110a and sends the second cathode signal N12 to the second light-emitting diode 110b.

[0060] In one embodiment, the first wire Ll 1 is used to transmit the first anode signal P 11 to the first light emitting diode 110a through a first transmission distance and to transmit the second anode signal P 12 to the second light emitting diode 110b through a second transmission distance, and the second wire L12 and the third wire L13 are used to transmit the first cathode signal N 11 to the first light emitting diode 110a through a third transmission distance and to transmit the second cathode signal N 12 to the second light emitting diode 110b through a fourth transmission distance. In detail, the driving circuit 140 sends an anode signal to the light emitting diodes 110 through the anode signal terminal 142, and because the anode signal passes through the wires with impedance during the sending process, the anode signals received by the light emitting diodes 110 are different. The distance between the anode signal terminal 142 and the anode terminal of the first light emitting diode 110a on the first wire Ll 1 is the first transmission distance, and the anode signal received by the first light emitting diode 110a through the first transmission distance is the first anode signal P 11. The distance between the anode signal terminal 142 and the anode terminal of the second light emitting diode 110b on the first wire Ll 1 is the second transmission distance, and the anode signal received by the second light emitting diode 110b through the second transmission distance is the second anode signal P 12.

[0061] On the other hand, the driving circuit 140 sends a cathode signal to the light emitting diodes 110 through the cathode signal terminal 144, and because the cathode signal passes through the wires with impedance during the sending process, the cathode signals received by the light emitting diodes 110 are different. The driving circuit 140 sends the cathode signal from the cathode signal terminal 144 to the light emitting diodes 110 through the third wire L13 and the second wire L12. On the second wire L12 and the third wire L13, the distance between the cathode signal terminal 144 and the cathode terminal of the first light emitting diode 110a is the third transmission distance, and the cathode signal received by the first light emitting diode 110a through the third transmission distance is the first cathode signal N 11. The distance between the cathode signal terminal 144 and the cathode terminal of the second light emitting diode 110b is the fourth transmission distance, and the cathode signal received by the second light emitting diode 110b through the fourth transmission distance is the second cathode signal N 12.

[0062] Specifically, the first anode signal P11 received by the first LED 110a has a first anode signal difference compared to the reference anode signal, and the second anode signal P12 received by the second LED 110b has a second anode signal difference compared to the reference anode signal. The reference anode signal is the anode signal generated by the driving circuit 140. The difference between the reference anode signal and the first anode signal P11 is the first anode signal difference, and the difference between the reference anode signal and the second anode signal P22 is the second anode signal difference. Since the first LED 110a is closer to the driving circuit 140 than the second LED 110b, the first anode signal difference is smaller than the second anode signal difference. More specifically, the first and second anode signal differences are caused by the transmission of the anode signal along the first trace L11. A longer transmission distance will produce a larger signal difference, and... Figure 1 As shown, the second transmission distance (the distance from the anode signal terminal 142 along the first trace L11 to the second light-emitting diode 110b) is greater than the first transmission distance (the distance from the anode signal terminal 142 along the first trace L11 to the first light-emitting diode 110a). Therefore, the difference in the second anode signal of the second light-emitting diode 110b will be greater than the difference in the first anode signal of the first light-emitting diode 110a.

[0063] Similarly, the first cathode signal N11 received by the first light-emitting diode 110a has a first cathode signal difference compared to the reference cathode signal, and the second cathode signal N12 received by the second light-emitting diode 110b has a second cathode signal difference compared to the reference cathode signal. The reference cathode signal is the cathode signal generated by the driving circuit 140. The difference between the reference cathode signal and the first cathode signal N11 is the first cathode signal difference, and the difference between the reference cathode signal and the second cathode signal N22 is the second cathode signal difference. Through the special routing design of the second trace L12 and the third trace L13 in this embodiment, although the first light-emitting diode 110a is closer to the driving circuit 140 than the second light-emitting diode 110b, the first cathode signal difference will still be greater than the second cathode signal difference. In detail, the first cathode signal difference and the second cathode signal difference are caused by the transmission of the cathode signal on the second trace L12 and the third trace L13. Figure 1 As shown, the third transmission distance (the distance from the cathode signal terminal 144 along the third trace L13 to the adjacent right position, and then along the second trace L12 to the first light-emitting diode 110a) is greater than the fourth transmission distance (the distance from the cathode signal terminal 144 along the third trace L13 to the adjacent right position, and then along the second trace L12 to the second light-emitting diode 110b). Therefore, the first cathode signal difference of the first light-emitting diode 110a will be greater than the second cathode signal difference of the second light-emitting diode 110b.

[0064] In one embodiment, the first transmission distance on the first trace Ll 1 and the third transmission distance on the third trace L13 and the second trace L12 form a first transmission impedance that is equal to a second transmission impedance formed by the second transmission distance on the first trace Ll 1 and the fourth transmission distance on the third trace L13 and the second trace L12. Assuming that the first trace Ll 1, the second trace L12 and the third trace L13 have the same resistance per unit distance (e.g., the same line width, material and conductivity), the sum of the first transmission distance and the third transmission distance is equal to the sum of the second transmission distance and the fourth transmission distance. The driving circuit 140 sending the anode signal and the cathode signal can also be understood as the driving circuit 140 providing current to the light emitting diodes 110 to drive the first light emitting diode 110a and the second light emitting diode 110b to emit light by generating a potential difference between the anode signal terminal 142 and the cathode signal terminal 144. The current flowing through the first light emitting diode 110a depends on the voltage provided by the driving circuit 140 and the impedance of the transmission path (i.e., the first transmission distance plus the third transmission distance), and the current flowing through the second light emitting diode 110b depends on the voltage provided by the driving circuit 140 and the impedance of the transmission path (i.e., the second transmission distance plus the fourth transmission distance), and in the case that the first trace Ll 1, the second trace L12 and the third trace L13 have the same resistance per unit distance, the currents flowing through the first light emitting diode 110a and the second light emitting diode 110b will have substantially similar magnitudes, in other words, the brightness of the first light emitting diode 110a and the second light emitting diode 110b will be substantially similar.

[0065] The transmission of signals and the signal gap are described above with respect to the first light emitting diode 110a and the second light emitting diode 110b, and in one embodiment, there are a plurality of light emitting diodes 110 between the first light emitting diode 110a and the second light emitting diode 110b. In this embodiment, as shown in FIG. 1, the first light emitting diode 110a is connected to the first trace Ll 1 and the second trace L12, and the second light emitting diode 110b is connected to the third trace L13 and the second trace L12. The first light emitting diode 110a and the second light emitting diode 110b are connected to the same second trace L12, and the first light emitting diode 110a and the second light emitting diode 110b are connected to different traces (i.e., the first trace Ll 1 and the third trace L13) on the anode side. The first light emitting diode 110a and the second light emitting diode 110b are connected to different traces (i.e., the second trace L12 and the third trace L13) on the cathode side. Figure 1As shown, the light emitting diodes 110 include a third light emitting diode 110c disposed between the first light emitting diode 110a and the second light emitting diode 110b. The third light emitting diode 110c receives a third anode signal P13 having a third anode signal difference with respect to the reference anode signal, and receives a third cathode signal N13 having a third cathode signal difference with respect to the reference cathode signal. The third anode signal difference is greater than the first anode signal difference and less than the second anode signal difference, and the third cathode signal difference is less than the first cathode signal difference and greater than the second cathode signal difference. In detail, the third anode signal difference and the third cathode signal difference of the third light emitting diode 110c are similarly dependent on the voltage provided by the driving circuit 140 and the transmission distance. Since the third light emitting diode 110c is located between the first light emitting diode 110a and the second light emitting diode 110b, the transmission distance of the anode signal transmitted by the driving circuit 140 to the third light emitting diode 110c is greater than the first transmission distance and less than the second transmission distance, so the third anode signal difference is greater than the first anode signal difference and less than the second anode signal difference. Similarly, the transmission distance of the cathode signal transmitted by the driving circuit 140 to the third light emitting diode 110c is less than the third transmission distance and greater than the fourth transmission distance, so the third cathode signal difference is less than the first cathode signal difference and greater than the second cathode signal difference.

[0066] According to the size relationship of the first anode signal difference, the third anode signal difference, and the second anode signal difference in the foregoing embodiment, the light emitting diode 110 closer to the right side on the glass substrate 120 has a greater anode signal difference. The difference between the anode signal received by the light emitting diode 110 and the reference anode signal can be understood as distortion of the anode signal, so it can be said that the distortion direction of the anode signal is from the left side to the right side. Similarly, according to the size relationship of the first cathode signal difference, the third cathode signal difference, and the second cathode signal difference, the light emitting diode 110 closer to the left side on the glass substrate 120 has a greater cathode signal difference. The difference between the cathode signal received by the light emitting diode 110 and the reference cathode signal can be understood as distortion of the cathode signal, so it can be said that the distortion direction of the cathode signal is from the right side to the left side. Figure 2 In the embodiment, the distortion direction of the cathode signal is opposite to the distortion direction of the anode signal.

[0067] In summary, the display device 100 reverses the distortion directions of the anode signal and the cathode signal by a special wiring design, so as to achieve the effect of uniform brightness of the light emitting diodes 110 on the glass substrate 120.

[0068] In some embodiments of this disclosure, the display device further includes a level shifting circuit. Please refer to... Figure 2 , Figure 1 This is a circuit architecture diagram of a display device 200 according to some embodiments of the present disclosure. The display device 200 includes, in addition to... Figure 3 In addition to the components, the display device 100 of this embodiment further includes a level shifting circuit 220. The level shifting circuit 220 is coupled between the second trace L12 and the third trace L13 near the right side. The level shifting circuit 220 is used to adjust the levels of the first cathode signal N11 and the second cathode signal N12. Specifically, the driving circuit 140 provides a DC voltage source through the third trace L13 to drive the level shifting circuit 220. The level shifting circuit 220 uses level shifting to output a voltage higher than the voltage level it receives. For example, if the voltage received by the level shifting circuit 220 is 5 volts (V), the voltage output by the level shifting circuit 220 can be 10 or 20 volts. In one embodiment, the level shifting circuit 220 includes an input terminal and an output terminal. The input terminal is used to receive the cathode signal from the driving circuit 140, and the output terminal is used to output the adjusted cathode signal to the light-emitting diode 110. In one embodiment, the level conversion circuit 220 is bonded to the glass substrate 120 using Chip On Glass (COG) technology.

[0069] In some embodiments of this disclosure, the display device includes two driving circuits. Please refer to... Figure 3 , Figure 3 This is a circuit architecture diagram of a display device 300 according to some embodiments of the present disclosure. The display device 300 includes a first driving circuit 340 and a second driving circuit 360. The first driving circuit 340 is adjacent to the left side of the glass substrate 120, and a plurality of anode signal terminals 342 of the first driving circuit 340 are coupled to a plurality of light-emitting diodes 110 and are used to transmit a first anode signal P11 and a second anode signal P12. The second driving circuit 360 is adjacent to the right side of the glass substrate 120, and a plurality of cathode signal terminals 364 of the second driving circuit 360 are coupled to a plurality of light-emitting diodes 110 and are used to transmit a first cathode signal N11 and a second cathode signal N12. For the sake of simplicity of explanation and illustration, Figure 4 Only one set of anode signal terminals 342 and cathode signal terminals 364 is shown, corresponding to a column of light-emitting diodes 110 in the figure. In one embodiment, the driving circuit 140 includes multiple sets of anode signal terminals 342 and cathode signal terminals 364, and corresponds to each column of light-emitting diodes 110 on the glass substrate 120.

[0070] In one embodiment, the display device 300 includes a first wire L31 coupled between the first driving circuit 340 and the plurality of light emitting diodes 110 for transmitting the first anode signal P11 through a first transmission distance to the first light emitting diode 110a and transmitting the second anode signal P12 through a second transmission distance to the second light emitting diode 110b. The display device 300 also includes a second wire L32 coupled between the second driving circuit 360 and the plurality of light emitting diodes 110 for transmitting the first cathode signal N11 through a fifth transmission distance to the first light emitting diode 110a and transmitting the second cathode signal N12 through a sixth transmission distance to the second light emitting diode 110b.

[0071] In detail, the first driving circuit 340 transmits anode signals through the anode signal terminal 342 and transmits the anode signals through the first wire L31 to the anode terminals of the plurality of light emitting diodes 110, including transmitting the first anode signal P11 to the first light emitting diode 110a and transmitting the second anode signal P12 to the second light emitting diode 110b. On the other hand, the second driving circuit 360 transmits cathode signals through the cathode signal terminal 364 and transmits the cathode signals through the second wire L32 to the cathode terminals of the plurality of light emitting diodes 110, including transmitting the first cathode signal N11 to the first light emitting diode 110a and transmitting the second cathode signal N12 to the second light emitting diode 110b.

[0072] In this embodiment, the light emitting diodes 110 closer to the right side have greater anode signal differences (the distortion direction of the anode signals is from the left side to the right side) because the transmission distance between the light emitting diodes 110 and the first driving circuit 340 is longer, and the light emitting diodes 110 closer to the left side have greater cathode signal differences (the distortion direction of the cathode signals is from the right side to the left side) because the transmission distance between the light emitting diodes 110 and the second driving circuit 360 is longer.

[0073] In one embodiment, the transmission impedance formed by the first transmission distance on the first wire L31 and the fifth transmission distance on the second wire L32 is equal to the transmission impedance formed by the second transmission distance on the first wire L31 and the sixth transmission distance on the second wire L32. Assuming that the resistance per unit distance of the first wire L31 and the second wire L32 is the same (for example, in the case that the line width, material, and conductivity of the first wire L31 and the second wire L32 are the same), the sum of the first transmission distance and the fifth transmission distance is equal to the sum of the second transmission distance and the sixth transmission distance. In other words, in the case that the resistance per unit distance of the first wire L31 and the second wire L32 is the same, the current flowing through the first light emitting diode 110a and the current flowing through the second light emitting diode 110b need to pass through substantially the same transmission distance, thus enabling the light emitting diodes 110 on the glass substrate 120 to have uniform brightness.

[0074] In summary, the display device 300 provides anode and cathode signals through two driving circuits on the left and right sides respectively, so that the distortion directions of the anode and cathode signals are opposite, thereby achieving the effect of consistent brightness of the light-emitting diodes 110 on the glass substrate 120.

[0075] Some embodiments of this disclosure also disclose a display device. Please refer to... Figure 4 , Figure 4 This is a circuit architecture diagram of a display device 400 according to some embodiments of the present disclosure. The display device 400 includes a glass substrate 120 and a plurality of light-emitting diodes 110. The plurality of light-emitting diodes 110 are disposed on the glass substrate 120 and arranged in a row, such as... Figure 4 In the illustrated embodiment, the light-emitting diodes 110 arranged in a row extend horizontally from one side of the glass substrate 120 to the opposite side. For example, multiple light-emitting diodes 110 are arranged sequentially from the left side to the right side of the glass substrate 120. Figure 4 The illustration is for illustrative purposes only, but this disclosure does not require a specific axis. In other words, a number of light-emitting diodes 110 are arranged laterally in rows on the glass substrate 120, with each row perpendicular to the first side (e.g., the left side of the glass substrate 120) and the second side (e.g., the right side of the glass substrate 120).

[0076] In one embodiment, the display device 400 includes a first driving circuit 440 and a second driving circuit 460. For example... Figure 4 As shown, the first driving circuit 440 is located adjacent to the left side of the glass substrate 120. Multiple anode signal terminals 442 of the first driving circuit 440 are coupled to multiple light-emitting diodes 110 and used to transmit a first anode signal P41. Multiple cathode signal terminals 444 of the first driving circuit 440 are coupled to multiple light-emitting diodes 110 and used to transmit a first cathode signal N41. The second driving circuit 460 is located adjacent to the right side of the glass substrate 120. Multiple anode signal terminals 462 of the second driving circuit 460 are coupled to multiple light-emitting diodes 110 and used to transmit a second anode signal P42. Multiple cathode signal terminals 464 of the second driving circuit 460 are coupled to multiple light-emitting diodes 110 and used to transmit a second cathode signal N42.

[0077] In one embodiment, the display device 400 includes a first trace L41 and a second trace L42. For example... ​As shown, the first wire L41 is coupled to the first driving circuit 440, the plurality of light emitting diodes 110 and the second driving circuit 460. The first wire L41 is used to connect the anode terminals of the light emitting diodes 110, the first anode signal P41 is transmitted through the anode signal terminal 442 to each of the light emitting diodes 110, and the second anode signal P42 is transmitted through the anode signal terminal 462 to each of the light emitting diodes 110. The second wire L42 is coupled to the first driving circuit 440, the plurality of light emitting diodes 110 and the second driving circuit 460. The second wire L42 is used to connect the cathode terminals of the light emitting diodes 110, the first cathode signal N41 is transmitted through the cathode signal terminal 444 to each of the light emitting diodes 110, and the second cathode signal N42 is transmitted through the cathode signal terminal 464 to each of the light emitting diodes 110.

[0078] In detail, the first driving circuit 440 transmits the first anode signal P41 through the anode signal terminal 442 to the first wire L41, and each of the light emitting diodes 110 receives the first anode signal P41 through the first wire L41. Similarly, the second driving circuit 460 transmits the second anode signal P42 through the anode signal terminal 462 and causes each of the light emitting diodes 110 to receive the second anode signal P42 through the first wire L41. The first driving circuit 440 transmits the first cathode signal N41 through the cathode signal terminal 444 to the second wire L42, and each of the light emitting diodes 110 receives the first cathode signal N41 through the second wire L42. Similarly, the second driving circuit 460 transmits the second cathode signal N42 through the cathode signal terminal 464 and causes each of the light emitting diodes 110 to receive the second cathode signal N42 through the second wire L42.

[0079] The first anode signal P41 has a first anode signal difference compared to a first reference anode signal, the first reference anode signal being an anode signal generated by the first driving circuit 440. Due to the impedance of the wire transmitting the signal, the first anode signal P41 will have a difference from the first reference anode signal, and thus has the first anode signal difference. Similarly, the second anode signal P42 has a second anode signal difference compared to a reference anode signal generated by the second driving circuit 460, the first cathode signal N41 has a first cathode signal difference compared to a first reference cathode signal generated by the first driving circuit 440, and the second cathode signal N42 has a second cathode signal difference compared to a second reference cathode signal generated by the second driving circuit 460.

[0080] It is worth noting that since each light emitting diode 110 receives the respective anode and cathode signals via different transmission distances, the first anode signal P41, the second anode signal P42, the first cathode signal N41 and the second cathode signal N42 received by each light emitting diode 110 are different. The light emitting diodes 110 closer to the right side have larger first anode signal and first cathode signal differences, and the light emitting diodes 110 closer to the left side have larger second anode signal and second cathode signal differences. In detail, since the first anode signal P41 and the first cathode signal N41 are transmitted by the first driving circuit 440 adjacent to the left side, the first anode signal P41 and the first cathode signal N41 received by the light emitting diodes 110 farther from the first driving circuit 440 (i.e. the light emitting diodes 110 closer to the right side) have larger differences from the reference signals. Conversely, since the second anode signal P42 and the second cathode signal N42 are transmitted by the second driving circuit 460 adjacent to the right side, the second anode signal P42 and the second cathode signal N42 received by the light emitting diodes 110 farther from the second driving circuit 460 (i.e. the light emitting diodes 110 closer to the left side) have larger differences from the reference signals. If the signal difference is understood as the distortion of the signal, it can be said that the distortion direction of the first anode signal P41 and the first cathode signal N41 is from the left side to the right side, and the distortion direction of the second anode signal P42 and the second cathode signal N42 is from the right side to the left side. That is, the distortion directions of the first anode signal P41 and the second anode signal P42 are opposite, and the distortion directions of the first cathode signal N41 and the second cathode signal N42 are opposite.

[0081] In summary, the display device 400 provides two sets of anode signals and cathode signals through two driving circuits, so that the distortion directions of the anode signals and the cathode signals are opposite, achieving the effect of uniform brightness of the light emitting diodes 110 on the glass substrate 120.

[0082] Although the present disclosure has been disclosed in the above embodiments, it is not intended to limit the present application. Any person skilled in the art can make various modifications and improvements without departing from the concept and scope of the present disclosure. The protection scope of the present disclosure is defined by the claims.

Claims

1. A display device, comprising: a glass substrate, comprising a first side and a second side, the first side and the second side being opposite sides of the glass substrate; and a plurality of light emitting diodes disposed on the glass substrate, the plurality of light emitting diodes arranged in a column extending from the first side to the second side, the plurality of light emitting diodes comprising a first light emitting diode adjacent to the first side and a second light emitting diode adjacent to the second side; wherein a first anode signal received by the first light emitting diode having a first anode signal disparity from a reference anode signal, a second anode signal received by the second light emitting diode having a second anode signal disparity from the reference anode signal, the first anode signal disparity being less than the second anode signal disparity, a first cathode signal received by the first light emitting diode having a first cathode signal disparity from a reference cathode signal, a second cathode signal received by the second light emitting diode having a second cathode signal disparity from the reference cathode signal, the first cathode signal disparity being greater than the second cathode signal disparity.

2. The display device of claim 1, wherein the plurality of light emitting diodes comprises a third light emitting diode disposed between the first light emitting diode and the second light emitting diode, a third anode signal received by the third light emitting diode having a third anode signal disparity from the reference anode signal, a third cathode signal received by the third light emitting diode having a third cathode signal disparity from the reference cathode signal, the third anode signal disparity being greater than the first anode signal disparity and less than the second anode signal disparity, the third cathode signal disparity being less than the first cathode signal disparity and greater than the second cathode signal disparity.

3. The display device of claim 1, further comprising: a driving circuit adjacent to the first side of the glass substrate, a plurality of anode signal terminals of the driving circuit coupled to the plurality of light emitting diodes and configured to transmit the first anode signal and the second anode signal, a plurality of cathode signal terminals of the driving circuit coupled to the plurality of light emitting diodes and configured to transmit the first cathode signal and the second cathode signal.

4. The display device of claim 3, further comprising: a first trace coupled between the driving circuit and the plurality of light emitting diodes, configured to transmit the first anode signal through a first transmission distance to the first light emitting diode and to transmit the second anode signal through a second transmission distance to the second light emitting diode; a second trace coupled to the plurality of light emitting diodes; and a third trace coupled between the second trace and the driving circuit, the third trace spanning from the first side to the second side and connected to the second trace at a location adjacent to the second side, the second trace and the third trace configured to transmit the first cathode signal through a third transmission distance to the first light emitting diode and to transmit the second cathode signal through a fourth transmission distance to the second light emitting diode.

5. The display device of claim 4, wherein a first transmission impedance formed by the first transmission distance on the first wire and the third transmission distance on the third wire and the second wire is equal to a second transmission impedance formed by the second transmission distance on the first wire and the fourth transmission distance on the third wire and the second wire.

6. The display device of claim 4, further comprising: a level shifting circuit coupled between the second wire and the third wire adjacent to the second side position, the level shifting circuit configured to adjust a level of the first cathode signal and the second cathode signal.

7. The display device of claim 1, further comprising: a first driving circuit adjacent to the first side of the glass substrate, the first driving circuit having a plurality of anode signal terminals coupled to the plurality of light emitting diodes and configured to transmit the first anode signal and the second anode signal; and a second driving circuit adjacent to the second side of the glass substrate, the second driving circuit having a plurality of cathode signal terminals coupled to the plurality of light emitting diodes and configured to transmit the first cathode signal and the second cathode signal.

8. The display device of claim 7, further comprising: a first wire coupled between the first driving circuit and the plurality of light emitting diodes, the first wire configured to transmit the first anode signal through a first transmission distance to the first light emitting diode and to transmit the second anode signal through a second transmission distance to the second light emitting diode; and a second wire coupled between the second driving circuit and the plurality of light emitting diodes, the second wire configured to transmit the first cathode signal through a fifth transmission distance to the first light emitting diode and to transmit the second cathode signal through a sixth transmission distance to the second light emitting diode.

9. A display device, comprising: a glass substrate comprising a first side and a second side, the first side and the second side being opposite sides of the glass substrate; and a plurality of light emitting diodes disposed on the glass substrate, the plurality of light emitting diodes arranged in a column extending from the first side to the second side, each of the plurality of light emitting diodes receiving a first anode signal, a second anode signal, a first cathode signal, and a second cathode signal, wherein the first anode signal having a first anode signal offset from a first reference anode signal, the second anode signal having a second anode signal offset from a second reference anode signal, the first cathode signal having a first cathode signal offset from a first reference cathode signal, the second cathode signal having a second cathode signal offset from a second reference cathode signal, the plurality of light emitting diodes closer to the second side having greater first anode signal offsets and first cathode signal offsets, the plurality of light emitting diodes closer to the first side having greater second anode signal offsets and second cathode signal offsets.

10. The display device of claim 9, further comprising: a first driving circuit adjacent to the first side of the glass substrate, anode signal terminals of the first driving circuit coupled to the plurality of light emitting diodes for sending the first anode signals, and cathode signal terminals of the first driving circuit coupled to the plurality of light emitting diodes for sending the first cathode signals; and a second driving circuit adjacent to the second side of the glass substrate, anode signal terminals of the second driving circuit coupled to the plurality of light emitting diodes for sending the second anode signals, and cathode signal terminals of the second driving circuit coupled to the plurality of light emitting diodes for sending the second cathode signals.

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