Active matrix substrate and display device
An active matrix and substrate technology, applied in the field of display devices, can solve problems such as leakage current, disconnection, and uneven brightness of inspection screens, and achieve the effect of suppressing uneven brightness and improving inspection accuracy
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no. 1 approach
[0091] figure 1 It is a block diagram showing the configuration of a liquid crystal display device including the active matrix substrate according to the first embodiment of the present invention. figure 1 The shown liquid crystal display device 1 includes a liquid crystal panel 2, a display control circuit 3, a scanning line driving circuit 4, a data line driving circuit 5 and a backlight 6. Hereinafter, m and n are integers of 2 or more, i is an integer of 1 or more and m or less, and j is an integer of 1 or more and n or less.
[0092] The liquid crystal panel 2 has a structure in which an active matrix substrate 10 is bonded to a counter substrate 7, and a liquid crystal (not shown) is sandwiched between the two substrates. On the active matrix substrate 10, m scanning lines G1 to Gm, n data lines S1 to Sn, and (m×n) pixel circuits 21 are formed. On the active matrix substrate 10, the scanning line driving circuit 4 is integrally formed together with the pixel circuit 21...
no. 2 approach
[0147] The active matrix substrate according to the second embodiment of the present invention differs from the active matrix substrate according to the first embodiment in the structure of the inspection region. Figure 12 It is a wiring diagram of the inspection region and its vicinity of the active matrix substrate of this embodiment. Figure 13 yes Figure 12 Equivalent circuit diagram of the circuit shown. Next, refer to Figure 12 and Figure 13 Differences from the first embodiment will be described.
[0148] In the active matrix substrate of this embodiment, the inspection TFT 55 has one gate terminal and one first conduction terminal ( Figure 12 The middle is the terminal on the left) and a second conduction terminal. The first conduction terminals and the second conduction terminals are arranged in a row in the column direction. The inspection control line 35 has a notched linear shape corresponding to a region that includes the inspection TFTs 55 and does not...
no. 3 approach
[0152] The active matrix substrate according to the third embodiment of the present invention differs from the active matrix substrates according to the first and second embodiments in the structure of the inspection region. Figure 14 It is a wiring diagram of the inspection region and its vicinity of the active matrix substrate of the present embodiment. Figure 15 yes Figure 14 The equivalent circuit diagram of the circuit shown. Next, refer to Figure 14 and Figure 15 Differences from the first and second embodiments will be described.
[0153] In the active matrix substrate of this embodiment, the inspection signal lines 32a, 32c, and 32e are arranged on the side of the inspection control line 36 in the inspection region 16 ( Figure 14 Middle is the upper side). The inspection signal lines 32b, 32d, and 32f are arranged on the other side of the inspection control line 36 in the inspection area 16 ( Figure 14 Middle is the lower side). Inspection TFTs 55 a to 55...
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